CN105953048B - A kind of cored screw bar twice-coiled devices - Google Patents
A kind of cored screw bar twice-coiled devices Download PDFInfo
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- CN105953048B CN105953048B CN201610450867.6A CN201610450867A CN105953048B CN 105953048 B CN105953048 B CN 105953048B CN 201610450867 A CN201610450867 A CN 201610450867A CN 105953048 B CN105953048 B CN 105953048B
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- rod
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- 238000001125 extrusion Methods 0.000 claims description 7
- 235000014364 Trapa natans Nutrition 0.000 claims description 6
- 240000001085 Trapa natans Species 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 description 26
- 238000010586 diagram Methods 0.000 description 15
- 230000003028 elevating effect Effects 0.000 description 11
- 239000000047 product Substances 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/08—Foot or support base
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
Cored screw bar twice-coiled devices small in size, that outreach is long are retracted the invention discloses a kind of, lower shell including being placed in bottom, guide rod and bull screw rod are installed in the lower shell, the top of the bull screw rod is equipped with ball screw, the top of the guide rod is placed in ball screw, the guide rod slides up and down in bull screw rod and ball screw, ball screw upper and lower displacement in bull screw rod.The present invention uses positive and negative two sections spiral rod structure, and two section screw rods, i.e. screw rod nesting use, and two section screw rods reduce occupied space in a contracted state, and structurally reasonable, easy to operate, use scope is wide.
Description
Technical field
The present invention relates to telescope support fields, more particularly to a kind of cored screw bar twice-coiled devices.
Background technique
In order to allow the shooting, easy to detect of photographic instrument, detection instrument in detection, detecting tool, photography, stage performance
The auxiliary of telescope support is generally required, general traditional telescope support is all A-frame to support three section antenna pull rods, is made
It is that wire rope pulley group draws high mechanism or single-unit spiral climbing structure, this traditional telescopic support structure can be by
To the restriction of use environment, the scope of application is not wide, can not accomplish smoothly to shoot or detect, Wu Faman in individual narrow spaces
Sufficient need of work.
Meanwhile for the telescoping mechanism of telescope support, similar telescoping mechanism currently on the market can only all stretch one
Section；Even 1.3 meters of long cylinders, when retraction are 1.3 meters, and similar product can only reach 2 meters or so currently on the market,
The length of stretching is too short, and client's needs can not be all met in individual small spaces and transportational process.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of hollow spiral shells small in size after retraction, that outreach is long
Spinner handle twice-coiled devices.
The technical problems to be solved by the invention are achieved through the following technical solutions:
A kind of cored screw bar twice-coiled devices of the invention, the lower shell including being placed in bottom, the lower shell are
Hollow tubular structure, guide rod and bull screw rod are equipped in the lower shell, and the bull screw rod is hollow structure, the bull
The outer surface of screw rod is equipped with screw thread, and the bull screw rod bushing is set to the outer ring of guide rod, and the top of the bull screw rod is equipped with ball
Screw rod, the ball screw are hollow structure, and the outer surface of the ball screw is equipped with screw thread, and the ball screw is set in more
In captacula bar, the top of the guide rod is placed in ball screw, and the guide rod slides up and down in bull screw rod and ball screw,
Ball screw upper and lower displacement in bull screw rod；
The upper end of the lower shell is provided with gear assembly, the gear assembly control bull screw rod and ball screw it is upper
Bottom offset, the gear assembly are installed on the outer ring of lower shell；
The upper end of the bull screw rod is provided with connection seat, and described connection seat one end is installed on the outer ring, another of bull screw rod
One end is installed on the outer ring of ball screw, ball screw upper and lower displacement in connection seat；
The upper end of the ball screw is provided with upper mounting seat, and the upper mounting seat is used to install the instrument for needing to set up.
Further, the gear assembly includes gearbox-case, gear-box mounting base and bull screw rod coupling nut, institute
The upper end that gear-box mounting base is set to lower shell is stated, the gearbox-case is fixed in the gear-box mounting base,
The bull screw rod coupling nut is set to the outer ring of bull screw rod, and the inner ring of the bull screw rod coupling nut is provided with spiral shell
The screw thread of line, the inner ring of the bull screw rod coupling nut is engaged with the screw thread of the outer surface of bull screw rod；
The first bevel gear and the second bevel gear are provided in the gearbox-case, first bevel gear includes gear end
And round end, the gear end are placed in inside gearbox-case, the round end is placed in outside gearbox-case, the round end
On rotating handle is installed, the gear end of first bevel gear is placed in the top of gear-box mounting base, first bevel gear
Gear end and gear-box mounting base between be provided with first bearing, the first bearing couples with bull screw rod transmission, described
Second bevel gear is installed on the top of the gear end of the first bevel gear, and the gear end of second bevel gear and the first bevel gear is nibbled
It closes, the upper end of second bevel gear is provided with second bearing, the gear internal diameter axis hole and multiple lead screw of second bevel gear
Connection section configuration be seamed edge and circular arc fabricated structure or circular arc on open up the structure of keyway, second bevel gear
The first line of a couplet is connected to bull nut, and the bull nut is engaged with bull screw rod, is provided with sleeve below second bevel gear, institute
The outer ring that sleeve is set in bull screw rod is stated, first bevel gear is fixed by coupling nut and gearbox-case assembly, institute
It states and is provided with retaining ring between coupling nut and rotating handle.
Further, the connection seat includes coupling sleeve, guide rod throwout sleeve and locking nut, the ball screw nut
It is actively coupled with bull screw rod by locking nut, the locking nut is fixedly installed in the upper end of bull screw rod, the guide rod
Throwout sleeve is placed in inside ball screw, and the guide rod throwout sleeve is set in guide rod outer ring, and the ball screw lower end is seated at
On guide rod throwout sleeve, the coupling sleeve is set in outside bull screw rod, and the coupling sleeve lower end is provided with semi-ring, the semi-ring
Flush-mounted in the outer ring of bull screw rod, the semi-ring is fixed by semi-ring locking nut, is provided with ball screw in the coupling sleeve
Nut, the ball screw nut are set in the outer ring of ball screw, the lower end surface of the ball screw nut and bull screw rod
Upper surface be in contact, the locking nut is installed on the upper end of coupling sleeve, and Anti-extrusion spiral shell is equipped on the locking nut
Pad, the Anti-extrusion spiral shell pad are placed in the end of guide rod.
Further, the guide rod includes floating torque arm, one end of the floating torque arm be provided with floating torsion seat,
The other end is provided with confinement block, and the floating torsion seating is in lower shell；
The radial dimension in the section of the floating torsion seat is greater than the radial dimension in the section of floating torque arm, the limitation
The radial dimension in the section of block is greater than or equal to the radial dimension of the circumscribed circle in the section of floating torque arm.
Further, the cross sectional shape of the bull screw rod be circular arc and seamed edge fabricated structure or circular arc on open up
The structure of keyway.
Further, the gear assembly provides power by manpower or motor provides power.
A kind of cored screw bar twice-coiled devices of the invention the utility model has the advantages that
The present invention uses positive and negative two sections spiral rod structure, and two section screw rods, i.e. screw rod nesting use, and two section screw rods are being shunk
Reduce occupied space under state, structurally reasonable, easy to operate, use scope is wide.
A kind of cored screw bar twice-coiled devices of the invention can stretch out two sections under identical length, that is to say, that stretch out
Length has more more than by about one time than similar product extension elongation currently on the market, and can be self-locking in random length, holds simultaneously
Easy exact localization operation；Even 1.3 meters of long cylinders, when retraction are 1.3 meters, and similar product can only stretch out currently on the market
To 2 meters or so, elevating mechanism of the invention is stretched out up to 3 meters or so, and extension elongation far surpasses similar product on the market, and it is certainly
The locking of random length may be implemented in lock function, it is allowed to meet the needs of field of employment.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of cored screw bar twice-coiled devices of the invention；
Fig. 2 is a kind of structural schematic diagram of the gear assembly of cored screw bar twice-coiled devices shown in FIG. 1；
Fig. 3 is a kind of structural schematic diagram of the connection seat of cored screw bar twice-coiled devices shown in FIG. 1；
Fig. 4 is a kind of coupling structure schematic diagram of the first bevel gear of cored screw bar twice-coiled devices shown in FIG. 1；
Fig. 5 is a kind of structural schematic diagram of the guide rod of cored screw bar twice-coiled devices shown in FIG. 1；
Fig. 6 is a kind of schematic illustration of cored screw bar twice-coiled devices shown in FIG. 1；
Fig. 7 is a kind of external general assembly structural schematic diagram of the guide rod of cored screw bar twice-coiled devices shown in FIG. 1；
Fig. 8 is the of the gear internal diameter axis hole of the second bevel gear of a kind of cored screw bar twice-coiled devices shown in FIG. 1
A kind of structural schematic diagram；
Fig. 9 is the of the gear internal diameter axis hole of the second bevel gear of a kind of cored screw bar twice-coiled devices shown in FIG. 1
A kind of connection sectional schematic diagram；
Figure 10 is the of the gear internal diameter axis hole of the second bevel gear of a kind of cored screw bar twice-coiled devices shown in FIG. 1
Two kinds of structural schematic diagrams；
Figure 11 is the of the gear internal diameter axis hole of the second bevel gear of a kind of cored screw bar twice-coiled devices shown in FIG. 1
Two kinds of connection sectional schematic diagrams.
1, lower shell；2, auxiliary leg；3, gear assembly；4, bull screw rod；5, ball screw；6, upper mounting seat；7, it revolves
Change hands handle；8, guide rod；9, bull screw rod coupling nut；10, gearbox-case；11, the first bevel gear；12, the second bevel gear；
13, second bearing；14, first bearing；15, sleeve；16, coupling nut；17, retaining ring；18, connection seat；19, round end；20, tooth
Take turns end；21, locking nut；22, coupling sleeve；23, ball screw nut；24, semi-ring locking nut；25, semi-ring；26, guide rod is sliding
Move sleeve；27, Anti-extrusion spiral shell pad；28, floating torque arm；29, confinement block；30, floating torsion seat；31, gear-box mounting base；
121, circular arc；122, seamed edge；123, keyway.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Referring to shown in Fig. 1 and Fig. 6, a kind of cored screw bar twice-coiled devices are double helix elevating mechanism, including are placed in most
The lower shell 1 of lower section, lower shell 1 are hollow tubular structure, are equipped with guide rod 8 and bull screw rod 4, bull screw rod 4 in lower shell 1
For hollow structure, the outer surface of bull screw rod 4 is equipped with screw thread, and the cross sectional shape of bull screw rod 4 is circular arc 121 and seamed edge 122
Opening up the structure of keyway 123 in fabricated structure or circular arc 121, the outer surface of bull screw rod 4 is equipped with screw thread, and 4 sets of bull screw rod
Set on the outer ring of guide rod 8, the top of bull screw rod 4 is equipped with ball screw 5, and ball screw 5 is hollow structure, ball screw 5
Outer surface is equipped with screw thread, and ball screw 5 is set in bull screw rod 4, and the top of guide rod 8 is placed in ball screw 5, and guide rod 8 exists
It is slided up and down in bull screw rod 4 and ball screw 5, the upper and lower displacement in bull screw rod 4 of ball screw 5；
The upper end of lower shell 1 is provided with gear assembly 3, gear assembly 3 control bull screw rod 4 and ball screw 5 up and down
Displacement, gear assembly 3 are installed on the outer ring of lower shell 1；
The upper end of bull screw rod 4 is provided with connection seat 18, and 18 one end of connection seat is installed on the outer ring, another of bull screw rod 4
End is installed on the outer ring of ball screw 5, the upper and lower displacement in connection seat 18 of ball screw 5；
The upper end of ball screw 5 is provided with upper mounting seat 6, and upper mounting seat 6 is used to install the instrument for needing to set up, Ke Yi
Peripheral hardware is used to set up the pedestal of instrument in upper mounting seat 6, stent-type or other structures is generally used, as long as being capable of fixing upper
Being ok in mounting base 6.
The structure type of the upper mounting seat 6 of the application is detailed in Fig. 1, Fig. 6 or Fig. 7, is also possible to other and any meets structure
With the form of design requirement.
Referring to fig. 2 and shown in Fig. 4, gear assembly 3 includes gearbox-case 10, gear-box mounting base 31 and bull screw rod connection
Connected nut 9, gear-box mounting base 31 are set to the upper end of lower shell 1, and gearbox-case 10 is fixed on the gear-box peace
It fills on seat 31, bull screw rod coupling nut 9 is set to the outer ring of bull screw rod 4, and the inner ring of bull screw rod coupling nut 9 is provided with
The screw thread of screw thread, the inner ring of bull screw rod coupling nut 9 is engaged with the screw thread of the outer surface of bull screw rod 4；
The first bevel gear 11 and the second bevel gear 12 are provided in gearbox-case 10, the first bevel gear 11 includes gear end
20 and round end 19, gear end 20 be placed in inside gearbox-case 10, round end 19 is placed in outside gearbox-case 10, round end
Rotating handle 7 is installed, the gear end 20 of the first bevel gear 11 is placed in the top of gear-box mounting base 31, the first bevel gear on 19
First bearing 14 is provided between 11 gear end 20 and gear-box mounting base 31, first bearing 14 and the transmission of bull screw rod 4 join
It connects, the second bevel gear 12 is installed on the top of the gear end 20 of the first bevel gear 11, the second bevel gear 12 and the first bevel gear 11
Gear end 20 engage, the upper end of the second bevel gear 12 is provided with second bearing 13, the gear internal diameter axis hole of the second bevel gear 12
Keyway is opened up in the fabricated structure or circular arc 121 that section configuration is seamed edge 122 and circular arc 121 with coupling for multiple lead screw 4
123 structure, 12 first line of a couplet of the second bevel gear are connected to bull nut, and bull nut is engaged with bull screw rod 4, the second bevel gear 12
Lower section is provided with sleeve 15, and sleeve 15 is set in the outer ring of bull screw rod 4, and the first bevel gear 11 passes through coupling nut 16 and gear
The assembly of box enclosure 10 is fixed, and retaining ring 17 is provided between coupling nut 16 and rotating handle 7.
The gear internal diameter axis hole of second bevel gear 12 of the invention is seamed edge 122 with the section configuration that couples of bull screw rod 4
The combination of combination or keyway 123 and circular arc 121 with circular arc 121, referring specifically to Fig. 8 to Figure 11.Wherein Fig. 8 and Fig. 9 are respectively
The first structural schematic diagram of the gear internal diameter axis hole of second bevel gear 12 of the invention and its connection sectional schematic diagram, connection are disconnected
Face is composed of circular arc 121 and seamed edge 122, when wherein circular arc 121 couples for the second bevel gear 12 and bull screw rod 4 in
Heart positioning, seamed edge 122 is for transmitting power.
Figure 10 to Figure 11 is respectively second of the structural schematic diagram and its connection of the connection section of the second bevel gear 12 of the invention
Sectional schematic diagram is connect, connection section is that keyway 123 is opened up on circular arc 121, and wherein circular arc 121 is used for 12 He of the second bevel gear
Centralized positioning when bull screw rod 4 couples, keyway 123 is for transmitting power.
The shape of the connection section of second bevel gear 12 of the invention is not limited to above-mentioned two situations, any simple deformation
Belong to protection scope of the present invention.
The most preferred scheme of retaining ring 17 of the invention is elastic shaft retaining ring, and other structures are similar, and the identical retaining ring of function is equal
It belongs to the scope of protection of the present invention.
The most preferred scheme of bull screw rod coupling nut 9 of the invention is using trapezoidal nut, thread conical face paste
It is right higher, it is not easy to loosen, processing performance is good, tooth intensity is high, centering effect is good.Bull screw rod of the invention can also use
Other kinds of nut, structure is similar, and function is identical to be all belonged to the scope of protection of the present invention.
Shown in Figure 3, connection seat 18 includes coupling sleeve 22, guide rod throwout sleeve 26 and locking nut 21, ball screw
Nut 23 is actively coupled with bull screw rod 4 by locking nut 21, and locking nut 21 is fixedly installed in the upper end of bull screw rod 4,
Guide rod throwout sleeve 26 is placed in inside ball screw 5, and guide rod throwout sleeve 26 is set in 8 outer ring of guide rod, is sat up straight under ball screw 5
In on guide rod throwout sleeve 26, coupling sleeve 22 is set in outside bull screw rod 4, and 22 lower end of coupling sleeve is provided with semi-ring 25, semi-ring
25 are embedded in the outer ring with bull screw rod 4, and semi-ring 25 is fixed by semi-ring locking nut 24, is provided with ball screw in coupling sleeve 22
Nut 23, ball screw nut 23 are set in the outer ring of ball screw 5, the lower end surface of ball screw nut 23 and bull screw rod 4
Upper surface be in contact, locking nut 21 is installed on the upper end of coupling sleeve 22, Anti-extrusion spiral shell pad 27 is installed on locking nut 21,
Anti-extrusion spiral shell pad 27 is placed in the end of guide rod 8, and of the invention Anti-extrusion spiral shell pad 27 is by bolt or screw is fixed or other
Fixed form.
Shown in Figure 5, guide rod 8 includes floating torque arm 28, and one end of floating torque arm 28 is provided with floating torsion seat
30, the other end is provided with confinement block 29, and floating torsion seat 30 is placed in lower shell 1；
The radial dimension in the section of floating torsion seat 30 is greater than the radial dimension in the section of floating torque arm 28, confinement block 29
Section radial dimension be greater than or equal to floating torque arm 28 section circumscribed circle radial dimension.
The quantity of auxiliary leg 2 in the present invention is 1 or 2 or multiple, and particular number can be according to real work need
It is selected.
A kind of application method for the cored screw bar twice-coiled devices specifically invented, may refer to Fig. 7, for the present invention
A kind of structural schematic diagram of embodiment, but use of the invention is not limited to a kind of this embodiment, as long as containing
Structure identical as a kind of cored screw bar twice-coiled devices of the present invention, function, the scheme of effect, belong to protection model of the invention
It encloses.
One embodiment of the present invention: the quantity of auxiliary leg 2 is 1 or 2 or multiple, and auxiliary leg 2 includes auxiliary
Assistant director of a film or play's linkage and auxiliary support mechanism, auxiliary support mechanism are supported in ground, secondary guide mechanism and the double spiral shells of cored screw bar
Cyclone is actively coupled, and the telescopic displacement up and down of secondary guide mechanism is controlled by elevating mechanism.
Another embodiment of the invention, the quantity of auxiliary leg 2 are 1, and auxiliary leg 2 includes Auxiliary support machine
Structure, auxiliary support mechanism are installed on the lower section of cored screw bar twice-coiled devices, and auxiliary support mechanism is supported in ground.
Gear assembly 3 provides power by manpower or motor provides power.
A kind of principle of cored screw bar twice-coiled devices of the invention is sketched: rotating handle 7 is in manpower or the band of electric power
Dynamic lower rotation, so that gear assembly 3 driven to rotate, the rotation of gear assembly 3 has driven bull screw rod 4 to rotate, by spiral by-product
Raw axial displacement, meanwhile, locking nut 21 couples with 4 top of bull screw rod, and the rotation of bull screw rod 4 has just driven locking nut 21
Rotation, under the action of guide rod 8, the secondary rotation of locking nut 21 can make 5 upper and lower displacement of ball screw.
In actual use, a kind of cored screw bar twice-coiled devices of the invention are in contraction state, guide rod 8, bull silk
Bar 4, ball screw 5 are all maximumlly to be set in together as far as possible, considerably reduce occupied space, when it is desired to be used,
Withdrawing device drives the first bevel gear 11 to rotate, the first bevel gear 11 and second by the rotating handle 7 at gear assembly 3
Bevel gear 12 engages, and the rotation of the first bevel gear 11 can drive the second bevel gear 12 to rotate, so that bull screw rod 4 be driven to revolve
Turn, bull screw rod 4 drives locking nut 21 to rotate, and guide rod 8 of the present invention plays control 5 rotation stop of ball screw, so that ball screw 5
Can only upper and lower displacement be not able to rotate that is, along axis shift.Guide rod 8 slides in lower shell 1, bull screw rod 4, ball screw 5.
Meanwhile when device contraction, guide rod 8 is all received into 5 medium position of ball screw, instead of the guide function of external guide rod.
Guide rod 8 of the invention includes floating torque arm 28, and one end of floating torque arm 28 is provided with floating torsion seat 30, another
One end is provided with confinement block 29, and floating torsion seat 30 is placed in lower shell 1；The radial dimension in the section of floating torsion seat 30 is greater than
The radial dimension of the radial dimension in the section of floating torque arm 28, the section of confinement block 29 is greater than or equal to floating torque arm 28
The radial dimension of the circumscribed circle in section, guide rod 8 are the rod-like device for controlling 5 rotation stop of ball screw.
Above-mentioned the case where being built-in guide rod 8, present invention the case where there is also another embodiments, i.e. external guide rod 8,
At this point, guide rod 8 is connected in outside bull screw rod 4 and ball screw 5, ball screw 5 is different from above structure, when external guide rod 8
Device in 5 solid constructions of ball screw, remaining structure and principle are identical as above structure, no longer excessive here to illustrate.
While device rises or falls, cooperation apparatus of the present invention be used together there are also auxiliary leg 2, in the present invention
Auxiliary leg 2 quantity be 1 or 2 or multiple, particular number can be selected according to real work.
One embodiment of the present invention: the quantity of auxiliary leg 2 is 1 or 2 or multiple, and auxiliary leg 2 includes auxiliary
Assistant director of a film or play's linkage and auxiliary support mechanism, auxiliary support mechanism are supported in ground, and secondary guide mechanism and elevating mechanism activity join
It connects, the telescopic displacement up and down of secondary guide mechanism is controlled by elevating mechanism.
Another embodiment of the invention, the quantity of auxiliary leg 2 are 1, and auxiliary leg 2 includes Auxiliary support machine
Structure, auxiliary support mechanism are installed on the lower section of elevating mechanism, and auxiliary support mechanism is supported in ground.
Specifically, auxiliary leg 2 is namely several to be socketed the hollow tubular object used, with the rising of elevating mechanism
Rise together, declines together with the decline of elevating mechanism, auxiliary leg 2, which can be, to be set up directly below elevating mechanism
Supporting leg type structure is also possible to the supporting structure of peripheral hardware, when for the supporting structure of peripheral hardware, is coupled respectively using connector each
Locate moving part, concrete position selects according to the actual situation, as long as not influencing the normal upper and lower displacement of device.
It is finally exactly the instrument set up using the fixed needs of upper mounting seat 6 above elevating mechanism, it can also be in upper installation
Perhaps pedestal to fix larger instrument or can be multiple brackets fixes the instrument for needing to set up to peripheral hardware platform on seat 6
Device, can device through the invention realize.
In addition, the auxiliary leg 2 in the application Fig. 7 belongs to the external guide rod of device, principle and other drawings are (specifically such as
Fig. 2 or Fig. 3 or Fig. 6) in guide rod 8 it is identical.
Power source of the invention, which can be, manually to be rotated, and also be can use motor control, is either detected or take the photograph
Shadow either other field is all extremely convenient.
The present invention uses positive and negative two sections spiral rod structure, and two section screw rods, i.e. screw rod nesting use, subtract in a contracted state
Occupied space is lacked, structurally reasonable, easy to operate, use scope is wide.
A kind of cored screw bar twice-coiled devices of the invention can stretch out two sections under identical length, that is to say, that stretch out
Length has more more than by about one time than similar product extension elongation currently on the market, and can be self-locking in random length, holds simultaneously
Easy exact localization operation；Even 1.3 meters of long cylinders, when retraction are 1.3 meters, and similar product can only stretch out currently on the market
To 2 meters or so, elevating mechanism of the invention is stretched out up to 3 meters or so, and extension elongation far surpasses similar product on the market, and it is certainly
The locking of random length may be implemented in lock function, it is allowed to meet the needs of field of employment.
The above is only a preferred embodiment of the present invention, it is not intended to restrict the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is several improvement and
Modification, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of cored screw bar twice-coiled devices, which is characterized in that the lower shell (1) including being placed in bottom, the lower cylinder
Body (1) is hollow tubular structure, is equipped with guide rod (8) and bull screw rod (4), the bull screw rod (4) in the lower shell (1)
For hollow structure, the outer surface of the bull screw rod (4) is equipped with screw thread, and the bull screw rod (4) is sheathed on the outer of guide rod (8)
The top of circle, the bull screw rod (4) is equipped with ball screw (5), and the ball screw (5) is hollow structure, the ball wire
The outer surface of bar (5) is equipped with screw thread, and the ball screw (5) is set in bull screw rod (4), and the top of the guide rod (8) is set
In ball screw (5), the guide rod (8) slides up and down in bull screw rod (4) and ball screw (5), the ball screw
(5) in bull screw rod (4) interior upper and lower displacement；
The upper end of the lower shell (1) is provided with gear assembly (3), gear assembly (3) control bull screw rod (4) and ball
The upper and lower displacement of screw rod (5), the gear assembly (3) are installed on the outer ring of lower shell (1)；
The upper end of the bull screw rod (4) is provided with connection seat (18), and described connection seat (18) one end is installed on bull screw rod (4)
Outer ring, the other end be installed on the outer rings of ball screw (5), the ball screw (5) is in connection seat (18) interior upper and lower displacement；
The upper end of the ball screw (5) is provided with upper mounting seat (6), and the upper mounting seat (6) is used to install what needs were set up
Instrument；
The gear assembly (3) includes gearbox-case (10), gear-box mounting base (31) and bull screw rod coupling nut (9),
The gear-box mounting base (31) is set to the upper end of lower shell (1), and the gearbox-case (10) is fixed on the tooth
In roller box mounting base (31), the bull screw rod coupling nut (9) is set to the outer ring of bull screw rod (4), the bull screw rod
The inner ring of coupling nut (9) is provided with screw thread, screw thread and bull screw rod (4) of the inner ring of the bull screw rod coupling nut (9)
Outer surface screw thread engagement；
The first bevel gear (11) and the second bevel gear (12), first bevel gear are provided in the gearbox-case (10)
It (11) include gear end (20) and round end (19), the gear end (20) is placed in gearbox-case (10) inside, the rotation
End (19) is placed in gearbox-case (10) outside, is equipped with rotating handle (7) on the round end (19), first bevel gear
(11) gear end (20) is placed in the top of gear-box mounting base (31), the gear end (20) and tooth of first bevel gear (11)
It is provided between roller box mounting base (31) first bearing (14), the first bearing (14) and bull screw rod (4) driving coupling, institute
State the top that the second bevel gear (12) is installed on the gear end (20) of the first bevel gear (11), second bevel gear (12) and the
The gear end of one bevel gear (11) engages, and the upper end of second bevel gear (12) is provided with second bearing (13), the second umbrella tooth
Take turns the gear internal diameter axis hole of (12) and the combined type for coupling section configuration for seamed edge (122) and circular arc (121) of bull screw rod (4)
The structure of keyway (123) is opened up in structure or circular arc (121), the second bevel gear (12) first line of a couplet is connected to bull nut, described
Bull nut is engaged with bull screw rod (4), is provided with sleeve (15) below second bevel gear (12), the sleeve (15)
It is set in the outer ring of bull screw rod (4), first bevel gear (11) is filled by coupling nut (16) and gearbox-case (10)
With fixation, retaining ring (17) are provided between the coupling nut (16) and rotating handle (7).
2. a kind of cored screw bar twice-coiled devices according to claim 1, which is characterized in that connection seat (18) packet
Coupling sleeve (22), guide rod throwout sleeve (26) and locking nut (21) are included, is provided with ball screw spiral shell in the coupling sleeve (22)
Female (23), the ball screw nut (23) are actively coupled with bull screw rod (4) by locking nut (21), the locking nut
(21) it is fixedly installed in the upper end of bull screw rod (4), the guide rod throwout sleeve (26) is placed in ball screw (5) inside, described
Guide rod throwout sleeve (26) is set in guide rod (8) outer ring, and ball screw (5) lower end is seated on guide rod throwout sleeve (26),
The coupling sleeve (22) is set in bull screw rod (4) outside, and coupling sleeve (22) lower end is provided with semi-ring (25), the semi-ring
(25) it is flush-mounted in the outer ring of bull screw rod (4), the semi-ring (25) is fixed by semi-ring locking nut (24), the ball screw
Nut (23) is set in the outer ring of ball screw (5), and the lower end surface of the ball screw nut (23) is upper with bull screw rod (4)
End face is in contact, and the locking nut (21) is installed on the upper end of coupling sleeve (22), is equipped on the locking nut (21) anti-
Deviate from spiral shell pad (27), the Anti-extrusion spiral shell pad (27) is placed in the end of guide rod (8).
3. a kind of cored screw bar twice-coiled devices according to claim 1, which is characterized in that the guide rod (8) includes
Floating torque arm (28), one end of the floating torque arm (28) be provided with floating torsion seat (30), the other end setting it is restricted
Block (29), the floating torsion seat (30) are placed in lower shell (1)；
The radial dimension in the section of the floating torsion seat (30) is greater than the radial dimension in the section of floating torque arm (28), described
The radial dimension in the section of confinement block (29) is greater than or equal to the radial dimension of the circumscribed circle in the section of floating torque arm (28).
4. a kind of cored screw bar twice-coiled devices according to claim 1, which is characterized in that the bull screw rod (4)
Cross sectional shape be circular arc (121) and seamed edge (122) fabricated structure or circular arc (121) on open up the knots of keyway (123)
Structure.
5. a kind of cored screw bar twice-coiled devices according to claim 1, which is characterized in that the gear assembly (3)
Power is provided by manpower or motor provides power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610450867.6A CN105953048B (en) | 2016-06-21 | 2016-06-21 | A kind of cored screw bar twice-coiled devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610450867.6A CN105953048B (en) | 2016-06-21 | 2016-06-21 | A kind of cored screw bar twice-coiled devices |
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| Publication Number | Publication Date |
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| CN105953048A CN105953048A (en) | 2016-09-21 |
| CN105953048B true CN105953048B (en) | 2019-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610450867.6A Active CN105953048B (en) | 2016-06-21 | 2016-06-21 | A kind of cored screw bar twice-coiled devices |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096047B (en) * | 2020-09-11 | 2022-01-21 | 厦门安科科技有限公司 | Attached lifting scaffold |
| CN113775626B (en) * | 2021-08-23 | 2023-05-23 | 贵州航锐航空精密零部件制造有限公司 | High-assembly-precision torsional shear type bolt |
| CN113983318B (en) * | 2021-10-26 | 2023-04-11 | 中国电子科技集团公司第三十八研究所 | Roller type synchronous telescopic device |
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| CN204061784U (en) * | 2014-08-14 | 2014-12-31 | 瀚寅(苏州)新材料科技有限公司 | The ball leading screw driving device that fixed length is spacing |
| CN104294569A (en) * | 2014-10-13 | 2015-01-21 | 佛山市顺德区盛熙电器制造有限公司 | Vapor steamer |
| CN105417451A (en) * | 2015-12-29 | 2016-03-23 | 芜湖华强文化科技产业有限公司 | Vehicle body lifter |
| CN105568936A (en) * | 2016-02-17 | 2016-05-11 | 岑立强 | Multi-rod gate hoist |
| CN205690033U (en) * | 2016-06-21 | 2016-11-16 | 北京科海恒生科技有限公司 | A kind of cored screw bar twice-coiled devices |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2679724B2 (en) * | 1986-08-01 | 1997-11-19 | ミノルタ 株式会社 | Carrier for developing electrostatic latent image and method for manufacturing the same |
| JP5367238B2 (en) * | 2007-06-19 | 2013-12-11 | Ｔｈｋ株式会社 | Ball screw actuator and steering apparatus using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204061784U (en) * | 2014-08-14 | 2014-12-31 | 瀚寅(苏州)新材料科技有限公司 | The ball leading screw driving device that fixed length is spacing |
| CN104294569A (en) * | 2014-10-13 | 2015-01-21 | 佛山市顺德区盛熙电器制造有限公司 | Vapor steamer |
| CN105417451A (en) * | 2015-12-29 | 2016-03-23 | 芜湖华强文化科技产业有限公司 | Vehicle body lifter |
| CN105568936A (en) * | 2016-02-17 | 2016-05-11 | 岑立强 | Multi-rod gate hoist |
| CN205690033U (en) * | 2016-06-21 | 2016-11-16 | 北京科海恒生科技有限公司 | A kind of cored screw bar twice-coiled devices |
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| CN105953048A (en) | 2016-09-21 |
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