CN118007917B - Support for civil engineering - Google Patents
Support for civil engineering Download PDFInfo
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- CN118007917B CN118007917B CN202410410970.2A CN202410410970A CN118007917B CN 118007917 B CN118007917 B CN 118007917B CN 202410410970 A CN202410410970 A CN 202410410970A CN 118007917 B CN118007917 B CN 118007917B
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- support
- plate
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- 238000010276 construction Methods 0.000 claims abstract description 101
- 230000007306 turnover Effects 0.000 claims abstract description 29
- 238000010008 shearing Methods 0.000 claims description 23
- 230000001360 synchronised effect Effects 0.000 claims description 18
- 210000000481 breast Anatomy 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
- E04G1/152—Platforms made of metal or with metal-supporting frame
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/14—Railings
- E04G5/142—Railings extensible or telescopic
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/14—Railings
- E04G5/144—Railings specific for the lateral, i.e. short side of a scaffold
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to the technical field of civil engineering, in particular to a support for civil engineering, which comprises at least two groups of single supports, wherein two adjacent groups of single supports are fixedly connected through a connecting frame, the single supports move along the ground through moving wheels, and each group of single supports comprises a supporting component, a base, moving wheels, a turnover component, a folding guardrail and a moving platform component; the bottom of the supporting component is connected with the base; the support assembly comprises a stand column and a lifting sleeve, the upper end of the lifting sleeve is provided with a turnover assembly, the turnover assembly comprises a rotating plate, the rotating plate is rotationally connected with the lifting sleeve through a connecting ring, and the upper end of the rotating plate is connected with the movable platform assembly through a screw rod; the movable platform assembly comprises a construction platform, folding guardrails are symmetrically arranged on two sides of the construction platform, each folding guardrail comprises a guardrail plate, and the surface of each guardrail plate is perpendicular to or parallel to the surface of the construction platform; the invention adopts different groups of single brackets for connection, has high applicability, is convenient for adjustment, is safe and stable, and can also improve the construction efficiency.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a bracket for civil engineering.
Background
In the process of civil engineering construction, a construction support is needed to assist constructors in operation, and the construction support is generally used in an outer wall, an interior decoration or a place with higher storey height, which cannot be directly constructed; the construction support generally adopts the assembled support among the prior art, generally all is by a plurality of connecting rod spare vertically and horizontally staggered construction to utilize connecting piece scene combination such as bolt and nut to assemble, installation, dismantlement are more loaded down with trivial details, and construction support combined installation back, construction platform's position and size are fixed, are inconvenient for remove and change the place, and when other construction positions and original construction position topography had the difference, for example have protruding or pit etc. then the construction after the same construction support changed the position then receives the influence, and stationarity and security also receive the influence, influence constructor efficiency, and construction support safety stability is not high.
Therefore, a bracket for civil engineering is urgently needed to solve the above problems.
Disclosure of Invention
Aiming at the problems, the invention provides the bracket for civil construction, which adopts at least two groups of single brackets to be connected according to the construction working conditions, has high applicability, is safe and stable, and can also improve the construction efficiency; the single support can be turned over and folded, so that the space occupation area of the construction platform in the horizontal direction is reduced, and the storage and placement are convenient.
The invention solves the technical problems by adopting the technical scheme that:
The support for civil construction comprises at least two groups of single supports, wherein two adjacent groups of single supports are fixedly connected through a connecting frame, and each group of single supports comprises a supporting component, a base, a movable wheel, a turnover component, a folding guardrail and a movable platform component; the bottom of the supporting component is connected with the base, the base is provided with a moving wheel, and the single bracket moves along the ground through the moving wheel; the support assembly comprises two groups of upright posts and lifting sleeves, the upper ends of the lifting sleeves are provided with overturning assemblies, each overturning assembly comprises a rotating plate, each rotating plate is positioned between the two groups of lifting sleeves and is rotationally connected with the lifting sleeve, the rotating plates are meshed through a gear structure to realize overturning, the upper ends of the rotating plates are connected with the movable platform assembly through screw rods, and the rotating plates are in threaded connection with the screw rods; the mobile platform assembly comprises a construction platform, folding guardrails are symmetrically arranged on two sides of the construction platform, each folding guardrail comprises a guardrail plate, and the guardrail plates are rotationally connected with the construction platform.
Preferably, the rotating plate is provided with the pivot respectively at both ends, and the pivot is located rotating plate one side, and rotating plate one side middle part sets up the movable block, and the perforation is seted up at the movable block middle part, and the movable block both sides are fixed respectively and are provided with the slider.
Preferably, the movable platform assembly further comprises a sliding rail, a first fixed block, a screw rod and a second fixed block; the two ends of the side part of the construction platform far away from the breast board are fixedly provided with a first fixed block and a second fixed block respectively, the two sides of the construction platform are fixedly provided with sliding rails respectively, and the two groups of sliding rails are in one-to-one correspondence and matched connection with the two groups of sliding blocks; the screw rod passes through a through hole in the middle of the moving block, the screw rod is in threaded connection with the moving block, and two ends of the screw rod are respectively in rotary connection with the first fixed block and the second fixed block.
Preferably, the turnover assembly further comprises two groups of turnover units, the two groups of turnover units are symmetrically arranged along the central line of the rotating plate, the two groups of turnover units are respectively and correspondingly connected with the two groups of lifting sleeves, and each group of turnover units comprises a lantern ring and a connecting ring; the lifting sleeve upper end sets up annular boss, lantern ring and go-between all overlap and establish in lifting sleeve upper end, and the go-between is located annular boss top, and the lantern ring is located annular boss below, and go-between and lantern ring pass through bolt fixed connection.
Preferably, each group of the overturning units further comprises a supporting plate, a driven gear, a driving gear, a rotating motor and an air support; one side of the lantern ring is provided with a lug which is rotationally connected with the rotating shaft, the other side of the lantern ring is provided with a boss which is fixedly connected with the supporting plate, the supporting plate is rotationally connected with the cylinder body end of the gas support, and the telescopic end of the gas support is rotationally connected with the rotating plate; an extending block is formed on one side of the connecting ring and is rotationally connected with the rotating shaft; the rotating motor is fixedly arranged on the lug of the connecting ring, an output shaft of the rotating motor penetrates through the lug and is fixedly connected with the driving gear, a driven gear is arranged above the driving gear, the driven gear is sleeved on the rotating shaft, and the driving gear is matched with the driven gear.
Preferably, the moving platform assembly further comprises a clamping piece, one end of the construction platform is provided with a first clamping hook, the other end of the construction platform is provided with a second clamping hook, the second clamping hook is provided with a second fixing hole, the first clamping hook is provided with a first fixing hole, the first clamping hook and the first fixing block are arranged at the same end, a guide groove is formed between the first clamping hook and the first fixing block, the clamping piece is connected with the first fixing block through a spring, a guide block is arranged on the clamping piece and is connected with the guide groove in a matched mode, the clamping piece is provided with a clamping block, and the clamping block penetrates through the first fixing hole of the first clamping hook and is inserted into the second fixing hole.
Preferably, each set of folding guardrails comprises a guardrail plate, a connector, a rotating seat and a spring pin; the bottom of the breast board is fixedly connected with the connectors, the connectors and the rotating seats are arranged at two ends of the bottom of the breast board, the two connectors and the two rotating seats are in one-to-one correspondence and are in rotating connection, and the rotating seats are fixedly connected with the construction platform; one side of the connector is provided with an inserting plate, the other side of the connector is provided with an inserting block, one side of the rotating seat is provided with a first connecting block, the other side of the rotating seat is provided with a second connecting block, the two spring pins are arranged, the first connecting block is connected with the inserting plate in a matched mode through one of the spring pins, and the second connecting block is connected with the inserting block in a matched mode through the other spring pin.
Preferably, the support assembly further comprises a screw and a worm and gear mechanism, wherein the screw and the worm and gear mechanism are respectively provided with two groups, each group of upright posts, a lifting sleeve, the screw and the worm and gear mechanism are connected in a matched mode, two articulated joints are fixedly arranged on the side parts of the upright posts, the two articulated joints are arranged up and down, and the lifting sleeve is sleeved on the screw; the worm gear mechanism comprises a worm wheel and a worm, the worm is connected with the worm wheel in a matched mode, and the worm wheel is fixedly sleeved on the lower portion of the screw.
Preferably, the base comprises a box body and a synchronous shaft; the box sets up two, two boxes and two sets of stands fixed connection respectively, and the screw rod lower extreme inserts in the box, rotates with the box to be connected, and in the synchronizing shaft both ends stretched into two boxes respectively, synchronizing shaft tip and one of them one end fixed connection of worm, the worm other end rotates with the box lateral wall to be connected.
Preferably, the connecting frame comprises a scissor plate and a quick fixing piece; the plurality of shearing fork plates are arranged, the middle parts of the two shearing fork plates are connected to form a shearing fork unit, the plurality of groups of shearing fork units are connected in a matched mode, the ends of the shearing fork plates positioned at the two ends of the plurality of groups of shearing fork units are connected with the hinge joints in a rotating mode, and one end, far away from the shearing fork plates, of the hinge joints is fixedly connected with the upright post; the quick fixing pieces are arranged in a plurality, and the quick fixing pieces are connected with the hinge joints in a one-to-one correspondence mode.
Compared with the prior art, the invention has the beneficial effects that:
According to the support for civil construction, different groups of single supports are selected according to construction working conditions and are fixedly connected through the connecting frame, the support assembly can move along the construction platform, adjustment is convenient in different construction occasions, bulges or pits are avoided, and the applicability is high; the single support includes mobilizable construction platform, and the construction platform of two adjacent groups single supports can be through first and two quick connection of trip, can effectively improve construction support installation effectiveness, can also promote the stability between the multiunit single support.
According to the support for civil construction, provided by the invention, the single support can drive the construction platform to overturn by 90 degrees through the overturning assembly until the surface of the construction platform is parallel to the vertical plane, so that the occupied area of the construction platform along the horizontal direction is effectively reduced, and a plurality of groups of single supports are conveniently stored, placed and transported.
The folding guardrail is arranged on the construction platform, can be folded for 90 degrees, comprises the guardrail plate, the rotating seat and the connector, the rotating seat is connected with the spring pin, the guardrail plate state is quickly adjusted through the spring pin, the guardrail plate is unfolded or folded, the structure is simple, the operation is convenient, the guardrail structure is stable, and the guardrail has good protective performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
Fig. 1 is a schematic diagram of a bracket connection structure for civil engineering according to an embodiment of the present invention;
FIG. 2 is a schematic view of a single bracket structure according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a connection structure between a lifting sleeve, a turnover assembly and a mobile platform assembly according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a connection structure between a turnover assembly and a lifting sleeve according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a support assembly, base, and mobile wheel connection according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a connection and disassembly structure of a connection frame and a column according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view of an embodiment of the present invention showing the lifting sleeve, the tipping assembly, the mobile platform assembly, and the folding guardrail;
FIG. 8 is an enlarged schematic view of area A of FIG. 7;
FIG. 9 is a schematic view of a partially exploded construction of a folding guardrail according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view of an embodiment of the present invention connecting adjacent standing platforms;
Fig. 11 is a cross-sectional view showing the connection of the connector and the swivel base according to the embodiment of the invention.
Reference numerals illustrate:
1. A support assembly; 11. a column; 111. a hinge joint; 12. lifting the sleeve; 121. an annular boss; 13. a screw; 14. a worm gear mechanism; 141. a worm wheel; 142. a worm; 15. a cross bar; 2. a base; 21. a case; 211. a shaft sleeve; 22. a protection box; 23. a synchronizing shaft; 24. a synchronous motor; 25. a drive bevel gear; 26. a driven bevel gear; 3. a moving wheel; 31. a universal wheel; 32. an adjusting member; 33. a fixing plate; 4. a flip assembly; 41. a collar; 42. a connecting ring; 43. a support plate; 44. a driven gear; 45. a drive gear; 46. a rotating electric machine; 47. a rotating plate; 471. a rotating shaft; 472. a slide block; 473. a moving block; 48. air supporting; 5. folding the guardrail; 51. a breast board; 52. a connector; 521. inserting plate; 522. inserting blocks; 523. a shaft cylinder; 53. a rotating seat; 531. a shaft hole; 532. a first connecting block; 533. a second connecting block; 534. a guide rod; 535. a bump; 54. a spring pin; 55. a handle; 6. a connecting frame; 62. a scissors fork plate; 63. a quick fixing member; 7. a mobile platform assembly; 71. a construction platform; 711. a first clamping hook; 712. a second clamping hook; 713. a second fixing hole; 714. a first fixing hole; 715. a screw hole; 716. a guide groove; 72. a slide rail; 73. a first fixed block; 74. a screw rod; 75. a moving motor; 76. a clamping piece; 761. a clamping block; 762. a spring; 763. a guide block; 77. and a second fixed block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation or be constructed and operated in a specific orientation. The term "connected" merely means a connection between devices and is not of special significance.
1-9, A support for civil construction comprises at least two groups of single supports, wherein two adjacent groups of single supports are fixedly connected through a connecting frame 6, and each group of single supports comprises a supporting component 1, a base 2, a movable wheel 3, a turnover component 4, a folding guardrail 5 and a movable platform component 7; the bottom of the supporting component 1 is connected with the base 2, the base 2 is provided with a movable wheel 3, and the single bracket moves along the ground through the movable wheel 3; the support assembly 1 comprises two groups of upright posts 11 and lifting sleeves 12, wherein the upright posts 11 and the lifting sleeves 12 are respectively provided with a turnover assembly 4 at the upper ends of the lifting sleeves 12, the turnover assembly 4 comprises a rotary plate 47, the rotary plate 47 is positioned between the two groups of lifting sleeves 12, the rotary plate 47 is rotationally connected with the lifting sleeves 12, the rotary plate 47 realizes turnover through a gear structure, the turnover angle of the rotary plate 47 is 90 degrees, the upper ends of the rotary plate 47 are connected with the movable platform assembly 7 through screw rods 74, and the rotary plate 47 is in threaded connection with the screw rods 74; the movable platform assembly 7 comprises a construction platform 71, folding guardrails 5 are symmetrically arranged on two sides of the construction platform 71, each folding guardrail 5 comprises a baffle plate 51, the baffle plates 51 are rotatably connected with the construction platform 71, the baffle plates 51 can be turned over by 90 degrees, and the surfaces of the baffle plates 51 are perpendicular to or parallel to the surface of the construction platform 71; when the construction support is used, two groups of upright posts 11 in two adjacent groups of single supports are fixedly connected with the connecting frame 6, and each single support can drive the screw rod 74, so that the support assembly 1 can move along the moving platform assembly 7 to adjust the position, and can avoid pits or protrusions on the ground, and the support effect of the construction support is stable and is not easily affected by the terrain.
The supporting assembly 1 further comprises a screw rod 13, a worm gear mechanism 14 and a cross rod 15, wherein the screw rod 13 and the worm gear mechanism 14 are respectively provided with two groups, and each group of upright posts 11, the lifting sleeve 12, the screw rod 13 and the worm gear mechanism 14 are connected in a matched manner; the upright post 11 is vertically arranged, the inside of the upright post 11 is hollow, a circular through hole is formed in the end face of the upper end of the upright post 11, the bottom of the upright post 11 is fixedly arranged on the base 2, the inside of the upright post 11 is communicated with the inside of the base 2, a screw rod 13 is vertically arranged in the upright post 11, the bottom of the screw rod 13 extends into the base 2 and is rotationally connected with the base 2, the opposite side parts of the upright posts 11 in two adjacent groups of single supports are provided with two articulated joints 111, the two articulated joints 111 on the side surfaces of each upright post 11 are arranged up and down, and the articulated joints 111 are conveniently connected with the end parts of the connecting frames 6; the lifting sleeve 12 is sleeved on the screw 13, the lifting sleeve 12 is connected with the screw 13 through threads, the lifting sleeve 12 axially moves along the screw 13, and an annular boss 121 is arranged at the upper end of the lifting sleeve 12 and is used for connecting the overturning assembly 4; the two ends of the cross bars 15 are respectively and fixedly arranged at the opposite side parts of the two groups of upright posts 11, the cross bars 15 are multiple, and the cross bars 15 are uniformly distributed and arranged along the axial direction of the upright posts 11 and are used for supporting the upright posts 11 at the two sides, and can also be used as a cat ladder when the supporting component 1 is positioned at the end part of the movable platform component 7; the worm and gear mechanism 14 comprises a worm wheel 141 and a worm 142, the worm wheel 141 is sleeved on the lower portion of the screw 13 and fixedly connected with the screw 13, and the worm 142 is matched and connected with the worm wheel 141.
The base 2 comprises a box body 21, a protection box 22, a synchronous shaft 23, a synchronous motor 24, a driving bevel gear 25 and a driven bevel gear 26; the box body 21 is provided with two pieces, a protection box 22 is fixedly arranged between the two pieces of box bodies 21, the tops of the two pieces of box bodies 21 are respectively and correspondingly fixedly connected with the bottoms of the two groups of upright posts 11, the box bodies 21 are communicated with the interiors of the upright posts 11, rib plates are arranged around the box bodies 21 and used for improving the supporting stability of the box bodies 21, a shaft sleeve 211 is arranged in the box bodies 21, and the lower ends of the screw rods 13 are inserted into the shaft sleeve 211 and are in rotary connection with the shaft sleeve 211; the inside of the protection box 22 is horizontally provided with a synchronizing shaft 23, two ends of the synchronizing shaft 23 respectively extend into the two box bodies 21, the end part of the synchronizing shaft 23 is fixedly connected with one end of a worm 142, and the other end of the worm 142 is rotatably connected with the side wall of the box body 21; the synchronous motor 24 is fixedly arranged in the middle of the protection box 22, an output shaft of the synchronous motor 24 extends into the protection box 22, the output shaft of the synchronous motor 24 is fixedly connected with the drive bevel gear 25, the driven bevel gear 26 is fixedly sleeved on the synchronous shaft 23, and the driven bevel gear 26 is in matched connection with the drive bevel gear 25; when the construction support is used, the synchronous motor 24 is started, the output shaft of the synchronous motor 24 drives the driving bevel gear 25 to rotate, the driven bevel gear 26 and the synchronous shaft 23 are driven to rotate, the worm 142 is matched with the worm wheel 141, the screw 13 is driven to rotate, the lifting sleeve 12 is driven to move upwards or downwards along the axial direction of the screw 13, the movable platform assembly 7 is driven to move to a proper position, and the synchronous motor 24 is turned off.
The movable wheel 3 comprises a universal wheel 31, an adjusting piece 32 and a fixed plate 33, one end of the fixed plate 33 is sleeved at the lower end of the upright post 11, the fixed plate 33 is fixedly arranged on the box 21 through a screw, a threaded hole is formed in the other end of the fixed plate 33 in a penetrating mode, the adjusting piece 32 is arranged at the upper end of the universal wheel 31, the adjusting piece 32 comprises a threaded rod, the threaded rod penetrates through the threaded hole in the fixed plate 33 to be connected with the universal wheel 31, the adjusting piece 32 is in threaded connection with the fixed plate 33, and the adjusting piece 32 is adjusted to enable the lower end of the universal wheel 31 to be in contact with or separated from the ground.
The two ends of the rotating plate 47 are respectively provided with a rotating shaft 471, the middle part of one side of the rotating plate 47 is provided with a moving block 473, and the middle part of the moving block 473 is provided with a perforation for connecting the moving platform assembly 7; the sliding blocks 472 are symmetrically arranged on two sides of the moving block 473, the sliding blocks 472 are fixedly connected with the rotating plate 47 through bolts, and inverted trapezoidal blocks are arranged on the sliding blocks 472.
The turnover assembly 4 is used for realizing the turnover folding function of the mobile platform assembly 7, reducing the occupied area along the horizontal direction, facilitating the accommodation and storage of a plurality of groups of single brackets in a certain space, the turnover assembly 4 also comprises two groups of turnover units, the two groups of turnover units are symmetrically arranged along the center line of the rotating plate 47, the two groups of turnover units are respectively and correspondingly connected with the two groups of lifting sleeves 12, and each group of turnover units comprises a lantern ring 41, a connecting ring 42, a supporting plate 43, a driven gear 44, a driving gear 45, a rotating motor 46 and an air support 48; the lantern ring 41 and the connecting ring 42 are sleeved at the upper end of the lifting sleeve 12, the lantern ring 41 is arranged below the annular boss 121, the connecting ring 42 is arranged above the annular boss 121, and the connecting ring 42 and the lantern ring 41 are fixedly connected through bolts and used for enhancing the connection strength of the overturning unit; one side of the collar 41 is provided with a lug, the lug is provided with a first connecting hole, the rotating shaft 471 passes through the first connecting hole, the rotating shaft 471 is rotationally connected with the collar 41, the other side of the collar 41 is provided with a boss, and the boss is fixedly connected with the supporting plate 43 through a bolt; the supporting plate 43 is rotationally connected with the cylinder end of the air support 48, and the telescopic end of the air support 48 is rotationally connected with the rotating plate 47 and is used for assisting in supporting the rotating plate 47 to turn over; a protruding block is formed on one side of the connecting ring 42, a second connecting hole is formed on the protruding block, the second connecting hole is arranged in a center of the lug of the lantern ring 41 and connected with the lug Kong Yitong, the rotating shaft 471 passes through the second connecting hole, and the rotating shaft 471 is rotationally connected with the connecting ring 42; the rotating motor 46 is fixedly arranged on a lug of the collar 41, an output shaft of the rotating motor 46 penetrates through the lug to be fixedly connected with the driving gear 45, a driven gear 44 is arranged above the driving gear 45, the driven gear 44 is sleeved on the rotating shaft 471, and the driving gear 45 is matched with the driven gear 44; when the construction support is used, the rotating motor 46 is started, the output shaft of the rotating motor 46 drives the driving gear 45 and the driven gear 44 to rotate, so that the rotating shaft 471 rotates, the rotating plate 47 and the movable platform assembly 7 rotate around the rotating shaft 471, and meanwhile, the air support 48 cooperatively acts until the rotating plate 47 rotates until the side surface of the rotating plate 47 is parallel to the vertical plane or the horizontal plane, and the rotating motor 46 is turned off.
Each group of folding guardrails 5 comprises a guardrail plate 51, a connector 52 and a rotating seat 53; round tables are respectively arranged at two ends of the bottom of the baffle plate 51, and external threads are arranged on the round tables; the two connectors 52 and the two rotating seats 53 are respectively arranged, the two connectors 52 are connected with the two rotating seats 53 in a one-to-one correspondence manner, the upper ends of the connectors 52 are provided with grooves, internal threads are arranged in the grooves, the round table is connected with the grooves through threads, one side of each connector 52 is provided with an inserting plate 521, the inserting plate 521 is provided with a round hole I, the other side of each connector 52 is provided with an inserting block 522, the inserting block 522 is provided with a round hole II, and the lower part of each connector 52 is provided with a shaft barrel 523; the bottom of the rotating seat 53 is provided with a guide rod 534, the guide rod 534 is fixedly connected with a screw hole 715 on the construction platform 71 through threads, the rotating seat 53 is provided with a shaft hole 531 in a penetrating mode, the shaft hole 531 is coaxially arranged with the overturning assembly 4 of the connector 52, the shaft barrel 523 is rotationally connected with the shaft hole 531, one side of the rotating seat 53 is provided with a first connecting block 532, and the other side of the rotating seat 53 is provided with a second connecting block 533; a gap is formed in the middle of the first connecting block 532 and is used for connecting the plugboard 521, two sides of the gap of the first connecting block 532 extend inwards to form an extension board, and a third round hole corresponding to the first round hole on the plugboard 521 is formed in the extension board; the second connecting block 533 has a U-shaped cross section, a U-shaped groove is formed in the second connecting block 533 for connecting the plug 522, a round hole IV corresponding to the round hole II in the plug 522 is formed in the U-shaped groove in a penetrating manner, a protruding block 535 is arranged on one side of the rotating seat 53, and a round hole V corresponding to the round hole IV is formed in the protruding block 535.
Each group of folding guardrails 5 further comprises spring pins 54, one end of each spring pin 54 is provided with a handle 55, the middle part of each spring pin 54 is sleeved with a connecting spring, two spring pins 54 are arranged, one end of each spring pin 54 penetrates through a fifth round hole on a protruding block 535 and a fourth round hole on a second 533 connecting block, and one end of the other spring pin 54 penetrates through a side wall of the rotating seat 53 and then penetrates through a third round hole on a first 532 connecting block; when the baffle plate 51 is to be rotated along the shaft cylinder 523 until the surface of the baffle plate 51 is vertical to the surface of the construction platform 71, the handle 55 is pulled, the spring pin 54 is pulled to the outer side of the rotating seat 53, the connecting spring is compressed, one end of the spring pin 54, which is inserted into the round hole IV on the connecting block II 533, moves to the side close to the protruding block 535 until the U-shaped groove on the connecting block II 533 is exposed, the inserting block 522 is inserted into the U-shaped groove on the connecting block II 533, at the moment, the round hole II on the inserting block 522 corresponds to the round hole IV on the U-shaped groove, the handle 55 is loosened, and under the elastic force of the connecting spring, the spring pin 54 moves to the side far away from the protruding block 535 until the spring pin 54 is inserted into the round hole IV on the connecting block II 533 and the round hole II on the inserting block 522, so that the rotating seat 53 is stably connected with the connecting head 52, the baffle plate 51 is unfolded and kept vertical, and the safety of the operation of constructor on the construction platform 71 is improved;
When the breast board 51 is to be rotated along the shaft cylinder 523 until the surface of the breast board 51 is parallel to the surface of the construction platform 71, the handle 55 is pulled, the spring pin 54 is pulled to the outer side of the rotating seat 53, the connecting spring is compressed, one end of the spring pin 54 inserted into the round hole III on the connecting block 532 moves to the end close to the handle 55 until the gap on the connecting block 532 is completely exposed, the inserting plate 521 is inserted into the gap on the connecting block 532, at this time, the round hole III on the connecting block 532 corresponds to the round hole I on the inserting plate 521, the handle 55 is loosened, the spring pin 54 moves to the end far away from the handle 55 under the elastic force of the connecting spring until the spring pin 54 is inserted into the round hole III and the round hole I on the inserting plate 521, and the breast board 51 is folded and folded.
The connecting frame 6 comprises a shearing plate 62 and a quick fixing piece 63; the plurality of shearing fork plates 62 are arranged, the middle parts of the two shearing fork plates 62 are connected to form a shearing fork unit, the plurality of shearing fork units are connected in a matched mode, and the end parts of the shearing fork plates 62 positioned at the two ends of the plurality of groups of shearing fork units are connected with the hinging heads 111 on the upright posts 11 in a rotating mode; the quick fixing pieces 63 are arranged in a plurality, the quick fixing pieces 63 are connected with the hinge joints 111 in a one-to-one correspondence mode, the quick fixing pieces 63 comprise pressing handles, concave blocks, adjusting rods and locking blocks, arc grooves are formed in the concave blocks, the pressing handle heads are of eccentric structures, the pressing handle heads are connected with the concave blocks in a rotating mode through connecting shafts, the concave blocks are sleeved on the adjusting rods, one ends, far away from the concave blocks, of the adjusting rods penetrate the hinge joints 111 and are fixedly connected with the hinge joints 111, when the pressing handle heads are rotated to align with the arc grooves in the concave blocks, the concave blocks are locked with the hinge joints 111 in a butt mode, and when the pressing handle heads are rotated to align with the arc grooves in the concave blocks, the concave blocks are unlocked from the hinge joints 111, and therefore the installation efficiency of the construction support can be effectively improved.
The movable platform assembly 7 further comprises a first fixed block 73, a clamping piece 76 and a second fixed block 77; the construction platforms 71 are rectangular plates, one end of each construction platform 71 is provided with a first clamping hook 711, the other end of each construction platform 71 is provided with a second clamping hook 712, two adjacent construction platforms 71 are connected with the second clamping hooks 712 in a buckling manner through the first clamping hooks 711, the first clamping hooks 711 are of U-shaped structures, the second clamping hooks 712 are of L-shaped structures, and a first fixing hole 714 is formed in a hook body on one side, close to the sliding rail 72, of each first clamping hook 711; the hook body of the second hook 712, which is far away from the slide rail 72, is provided with a second fixing hole 713, and the first fixing hole 714 and the second fixing hole 713 are equal in size and opposite in position; the two ends of the side part of the construction platform 71 far away from the breast board 51 are respectively provided with a first fixed block 73 and a second fixed block 77, the first fixed block 73 is arranged at the same end as the first clamping hook 711, the second fixed block 77 is arranged at the same end as the second clamping hook 712, the bottom of the construction platform 71 is also provided with a guide groove 716, and the guide groove 716 is positioned between the first fixed block 73 and the first clamping hook 711; the clamping piece 76 is arranged between the first fixing block 73 and the first clamping hook 711, the clamping piece 76 is connected with the first fixing block 73 through a spring 762, the spring 762 is in a compressed state between the clamping piece 76 and the first fixing block 73, has a strong abutting force, can enable the first clamping hook 711 to be matched and fastened with the second clamping hook 712, a clamping block 761 is arranged on one side, close to the first clamping hook 711, of the clamping piece 76, and the clamping block 761 penetrates through the first fixing hole 714 and is inserted into the second fixing hole 713; the upper end of the clamping piece 76 is provided with a guide block 763, the guide block 763 is matched and connected with the guide groove 716, and the clamping piece 76 moves reciprocally along the guide groove 716; when two adjacent single supports are connected, the clamping piece 76 is pulled to enable the clamping piece 76 to move along the guide groove 716, the clamping piece 761 is separated from the first fixing hole 714, the spring 762 is further compressed, the second clamping hook 712 on the adjacent construction platform 71 is matched with the first clamping hook 711, the first fixing hole 714 corresponds to the second fixing hole 713, the clamping piece 76 is loosened, under the elastic force of the spring 762, the clamping piece 761 on the clamping piece 76 is inserted into the first fixing hole 714 to the second fixing hole 713, the clamping piece 76 abuts against the first clamping hook 711, and the spring 762 is in a compressed state at the moment to prevent the clamping piece 761 from being separated from the first fixing hole 714 and the second fixing hole 713, and the first clamping hook 711 is stably connected with the second clamping hook 712.
The movable platform assembly 7 further comprises a slide rail 72, a screw 74 and a movable motor 75; screw holes 715 are formed in four corners, close to the surface of the breast board 51, of the construction platform 71, the screw holes 715 are in one-to-one correspondence with the rotating seats 53, and the screw holes 715 on the construction platform 71 are fixedly connected with the rotating seats 53 through threads; the two sides of the surface of the construction platform 71 far away from the breast board 51 are symmetrically provided with slide rails 72, the two slide rails 72 are correspondingly connected with the two slide blocks 472 on the rotating plate 47 one by one, and the slide rails 72 are matched with the slide blocks 472 to enable the slide blocks 472 to move along the slide rails 72; the moving motor 75 is fixedly arranged on the fixed block II 77, an output shaft of the moving motor 75 penetrates through the fixed block I73 to be fixedly connected with one end of the screw rod 74, the other end of the screw rod 74 penetrates through a through hole in the moving block 473, the end of the screw rod 74 is rotationally connected with the fixed block I73, and the screw rod 74 is rotationally connected with the moving block 473 through threads; when the construction support is used, the moving motor 75 is started, the output shaft of the moving motor 75 drives the screw rod 74 to rotate, the relative position of the moving block 473 and the construction platform 71 is adjusted, and therefore the position of the support assembly 1 relative to the construction platform 71 is adjusted, and the moving motor 75 is turned off.
The use flow and the working principle of the device are as follows:
After at least two single brackets are moved to a proper position, the rotating motor 46 is started, the output shaft of the rotating motor 46 drives the driving gear 45 and the driven gear 44 to rotate, so that the rotating shaft 471 rotates, the rotating plate 47 and the movable platform assembly 7 rotate around the rotating shaft 471, and meanwhile, the air support 48 acts in a matched mode until the surface of the rotating plate 47 is parallel to the horizontal plane, and the rotating motor 46 is closed;
Pulling the clamping piece 76 to enable the clamping piece 76 to move along the guide groove 716, separating the clamping piece 761 from the first fixing hole 714, at the moment, further compressing the spring 762, enabling the second clamping hook 712 on the adjacent construction platform 71 to be matched with the first clamping hook 711, enabling the first fixing hole 714 to correspond to the second fixing hole 713, loosening the clamping piece 76, enabling the clamping piece 761 on the clamping piece 76 to be inserted into the first fixing hole 714 and the second fixing hole 713 under the elastic force of the spring 762, enabling the clamping piece 76 to be abutted with the first clamping hook 711, and enabling the spring 762 to be in a compressed state at the moment;
The ends of the shearing plates 62 positioned at the two ends of the multiple groups of shearing units are respectively and quickly connected and fixed with the multiple hinges 111 through the quick fixing pieces 63;
According to the topography of the construction position, single supports positioned at two ends of the support for civil engineering construction are adjusted, a mobile motor 75 is started, an output shaft of the mobile motor 75 drives a screw rod 74 to rotate, and the relative position of a mobile block 473 and a construction platform 71 is adjusted, so that a support assembly 1 is positioned at a proper position of the construction platform 71, and the mobile motor 75 is closed;
Adjusting the adjusting piece 32 to enable the adjusting piece 32 to slowly rise until the bottom of the box body 21 is contacted with the ground, and separating the bottom of the fixed universal wheel 31 from the ground;
The constructor is positioned on the construction platform 71, pulls the spring pin 54, rotates the baffle plate 51 until the surface of the baffle plate 51 is vertical to the surface of the construction platform 71, and releases the spring pin 54, so that the spring pin 54 is inserted into a round hole IV of the second 533 connecting block and a round hole II of the inserting block 522, and the baffle plate 51 is unfolded and kept vertical;
The synchronous motor 24 is started, the output shaft of the synchronous motor 24 drives the driving bevel gear 25 to rotate, the driven bevel gear 26 and the synchronous shaft 23 are driven to rotate, the worm 142 is matched with the worm wheel 141, the screw 13 is driven to rotate, the lifting sleeve 12 is driven to move upwards along the axial direction of the screw 13, the movable platform assembly 7 is driven to move to a proper position, and the synchronous motor 24 is turned off.
And after the construction is completed, loosening and decomposing the plurality of groups of single supports, and moving the plurality of groups of single supports to the support storage position after being folded.
According to the support for civil construction, different groups of single supports are selected according to construction working conditions and are fixedly connected through the connecting frame, the support assembly can move along the construction platform, adjustment is convenient in different construction occasions, bulges or pits are avoided, and the applicability is high; the single support includes mobilizable construction platform, and the construction platform of two adjacent groups single supports can be through first and two quick connection of trip, can effectively improve construction support installation effectiveness, can also promote the stability between the multiunit single support.
According to the support for civil construction, provided by the invention, the single support can drive the construction platform to overturn by 90 degrees through the overturning assembly until the surface of the construction platform is parallel to the vertical plane, so that the occupied area of the construction platform along the horizontal direction is effectively reduced, and a plurality of groups of single supports are conveniently stored, placed and transported.
The folding guardrail is arranged on the construction platform, can be folded for 90 degrees, comprises the guardrail plate, the rotating seat and the connector, the rotating seat is connected with the spring pin, the guardrail plate state is quickly adjusted through the spring pin, the guardrail plate is unfolded or folded, the structure is simple, the operation is convenient, the guardrail structure is stable, and the guardrail has good protective performance.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The support for civil construction is characterized by comprising at least two groups of single supports, wherein two adjacent groups of single supports are fixedly connected through a connecting frame (6), and each group of single supports comprises a supporting component (1), a base (2), a movable wheel (3), a turnover component (4), a folding guardrail (5) and a movable platform component (7); the bottom of the supporting component (1) is connected with the base (2), the base (2) is provided with a moving wheel (3), and the single bracket moves along the ground through the moving wheel (3); the support assembly (1) comprises an upright post (11) and a lifting sleeve (12), the upright post (11) and the lifting sleeve (12) are respectively provided with two groups, the upper end of the lifting sleeve (12) is provided with a turnover assembly (4), the turnover assembly (4) comprises a rotating plate (47), the rotating plate (47) is positioned between the two groups of lifting sleeves (12), the rotating plate (47) is rotationally connected with the lifting sleeve (12), the rotating plate (47) is meshed through a gear structure to realize turnover, the upper end of the rotating plate (47) is connected with the movable platform assembly (7) through a screw rod (74), and the rotating plate (47) is in threaded connection with the screw rod (74); the movable platform assembly (7) comprises a construction platform (71), folding guardrails (5) are symmetrically arranged on two sides of the construction platform (71), each folding guardrail (5) comprises a baffle plate (51), and the baffle plates (51) are rotationally connected with the construction platform (71);
the two ends of the rotating plate (47) are respectively provided with a rotating shaft (471), the rotating shafts (471) are positioned on one side of the rotating plate (47), the middle part of one side of the rotating plate (47) is provided with a moving block (473), the middle part of the moving block (473) is provided with a perforation, and two sides of the moving block (473) are respectively fixedly provided with a sliding block (472);
The movable platform assembly (7) further comprises a sliding rail (72), a first fixed block (73), a screw rod (74) and a second fixed block (77); the two ends of the side part, far away from the breast board (51), of the construction platform (71) are fixedly provided with a first fixed block (73) and a second fixed block (77) respectively, the two sides of the construction platform (71) are fixedly provided with sliding rails (72) respectively, and the two groups of sliding rails (72) are in one-to-one correspondence and matched connection with the two groups of sliding blocks (472); the screw rod (74) penetrates through a through hole in the middle of the movable block (473), the screw rod (74) is in threaded connection with the movable block (473), and two ends of the screw rod (74) are respectively in rotary connection with the first fixed block (73) and the second fixed block (77).
2. The support for civil engineering according to claim 1, characterized in that the overturning assembly (4) further comprises two groups of overturning units, the two groups of overturning units are symmetrically arranged along the central line of the rotating plate (47), the two groups of overturning units are respectively and correspondingly connected with the two groups of lifting sleeves (12), and each group of overturning units comprises a lantern ring (41) and a connecting ring (42); annular boss (121) is set up to lift sleeve (12) upper end, lantern ring (41) and go-between (42) are all overlapped and are established in lift sleeve (12) upper end, go-between (42) are located annular boss (121) top, lantern ring (41) are located annular boss (121) below, go-between (42) and lantern ring (41) pass through bolt fixed connection.
3. The bracket for civil construction according to claim 2, wherein each group of the turnover units further comprises a support plate (43), a driven gear (44), a driving gear (45), a rotary motor (46) and an air bearing (48); one side of the lantern ring (41) is provided with a lug, the lug is rotationally connected with the rotating shaft (471), the other side of the lantern ring (41) is provided with a boss, the boss is fixedly connected with the supporting plate (43), the supporting plate (43) is rotationally connected with the cylinder body end of the air support (48), and the telescopic end of the air support (48) is rotationally connected with the rotating plate (47); an extending block is formed on one side of the connecting ring (42) and is rotationally connected with the rotating shaft (471); the rotary motor (46) is fixedly arranged on the lug of the connecting ring (42), an output shaft of the rotary motor (46) penetrates through the lug to be fixedly connected with the driving gear (45), the driven gear (44) is arranged above the driving gear (45), the driven gear (44) is sleeved on the rotating shaft (471), and the driving gear (45) is matched with the driven gear (44).
4. The support for civil engineering according to claim 1, wherein the moving platform assembly (7) further comprises a clamping piece (76), one end of the construction platform (71) is provided with a first clamping hook (711), the other end of the construction platform is provided with a second clamping hook (712), the second clamping hook (712) is provided with a second fixing hole (713), the first clamping hook (711) is provided with a first fixing hole (714), the first clamping hook (711) and the first fixing block (73) are arranged at the same end, a guide groove (716) is formed between the first clamping hook (711) and the first fixing block (73), the clamping piece (76) is connected with the first fixing block (73) through a spring (762), a guide block (763) is arranged on the clamping piece (76), the guide block (763) is connected with the guide groove (716) in a matched mode, and the clamping piece (761) penetrates through the first fixing hole (714) of the first clamping hook (711) to be inserted into the second fixing hole (713).
5. A support for civil construction according to claim 1, characterized in that each group of folding guardrails (5) comprises a railing panel (51), a connector (52), a rotating seat (53) and a spring pin (54); the bottom of the breast board (51) is fixedly connected with the connectors (52), the connectors (52) and the rotating seats (53) are arranged at two ends of the bottom of the breast board (51), the two connectors (52) and the two rotating seats (53) are in one-to-one correspondence and are in rotating connection, and the rotating seats (53) are fixedly connected with the construction platform (71); one side of the connector (52) is provided with an inserting plate (521), the other side of the connector is provided with an inserting block (522), one side of the rotating seat (53) is provided with a first connecting block (532), the other side of the rotating seat is provided with a second connecting block (533), the spring pins (54) are arranged in two, the first connecting block (532) is connected with the inserting plate (521) in a matched mode through one of the spring pins (54), and the second connecting block (533) is connected with the inserting block (522) in a matched mode through the other spring pin (54).
6. The support for civil engineering according to claim 1, wherein the support assembly (1) further comprises a screw (13) and a worm gear mechanism (14), the screw (13) and the worm gear mechanism (14) are provided with two groups, each group of upright posts (11), the lifting sleeve (12), the screw (13) and the worm gear mechanism (14) are connected in a matched mode, two hinging heads (111) are fixedly arranged on the side portions of the upright posts (11), the two hinging heads (111) are arranged up and down, and the lifting sleeve (12) is sleeved on the screw (13); the worm and gear mechanism (14) comprises a worm wheel (141) and a worm (142), the worm (142) is connected with the worm wheel (141) in a matched mode, and the worm wheel (141) is fixedly sleeved on the lower portion of the screw (13).
7. A support for civil engineering according to claim 6, characterized in that the base (2) comprises a box (21) and a synchronizing shaft (23); the box body (21) is provided with two pieces, the two pieces of box bodies (21) are fixedly connected with the two groups of upright posts (11) respectively, the lower end of the screw rod (13) is inserted into the box body (21) and is rotationally connected with the box body (21), two ends of the synchronous shaft (23) extend into the two pieces of box bodies (21) respectively, the end part of the synchronous shaft (23) is fixedly connected with one end of the worm (142), and the other end of the worm (142) is rotationally connected with the side wall of the box body (21).
8. A support for civil engineering according to claim 7, characterized in that the connecting frame (6) comprises a scissor plate (62) and a quick fixing (63); the plurality of shearing fork plates (62) are arranged, the middle parts of the two shearing fork plates (62) are connected to form a shearing fork unit, the plurality of groups of shearing fork units are connected in a matched mode, the ends of the shearing fork plates (62) positioned at the two ends of the plurality of groups of shearing fork units are connected with a hinge joint (111) in a rotating mode, and one end, far away from the shearing fork plates (62), of the hinge joint (111) is fixedly connected with the upright post (11); the quick fixing pieces (63) are arranged in a plurality, and the quick fixing pieces (63) are connected with the hinging heads (111) in a one-to-one correspondence mode.
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| CN115306132B (en) * | 2022-08-26 | 2024-05-14 | 广东尚华建筑工程有限公司 | Building construction platform |
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| CN219672052U (en) * | 2023-01-30 | 2023-09-12 | 关志龙 | Movable operation frame |
| CN220395132U (en) * | 2023-06-14 | 2024-01-26 | 中建八局第四建设有限公司 | Adjustable construction platform |
| CN117468684A (en) * | 2023-12-27 | 2024-01-30 | 山西二建集团有限公司 | Operation platform for building construction |
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| CN215168213U (en) * | 2021-08-04 | 2021-12-14 | 五矿二十三冶建设集团有限公司 | Assembled prefabricated stair temporary fixing device capable of being circulated |
| CN217087847U (en) * | 2022-06-29 | 2022-07-29 | 山西省安装集团股份有限公司 | Foldable photovoltaic power generation device |
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