CN114468662B - A four-folding electric bed - Google Patents
A four-folding electric bed Download PDFInfo
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- CN114468662B CN114468662B CN202011167936.5A CN202011167936A CN114468662B CN 114468662 B CN114468662 B CN 114468662B CN 202011167936 A CN202011167936 A CN 202011167936A CN 114468662 B CN114468662 B CN 114468662B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C19/00—Bedsteads
- A47C19/12—Folding bedsteads
- A47C19/122—Folding bedsteads foldable head to foot only
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C19/00—Bedsteads
- A47C19/12—Folding bedsteads
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Abstract
The invention provides a four-fold electric bed which comprises a base, a bed plate and a turnover device, wherein the bed plate is flatly paved on the top of the base, the turnover device is used for driving part of the bed plate to turn over relative to the base, the base comprises a first frame, a second frame, a third frame and a fourth frame, the first frame, the second frame, the third frame and the fourth frame are rotatably connected or detachably connected at the junctions in sequence, the bed plate comprises a back plate, a hip plate, a leg plate and a foot plate, the back plate, the hip plate, the leg plate and the foot plate are respectively arranged on the tops of the first frame, the second frame, the third frame and the fourth frame, the tail of the back plate is hinged with the tail of the first frame, and the head of the leg plate is hinged with the head of the third frame. The invention reduces the size after folding through the four-folding design, meets 130' UPS transportation standard, reduces transportation cost and enhances market competitiveness.
Description
Technical Field
The invention relates to the technical field of electric beds, in particular to a four-folding electric bed.
Background
UPS transportation in the united states market is classified into 165 "and 130" standards, which have very large freight rates differing by about four hundred yuan, and have considerable profit margins. The calculation method of the UPS package size is package length+2 package width+2 package height, and the size of the most commonly used Queen size (1524 x 2032) after the bed is packaged is far from meeting the requirement of the UPS. At present, the electric bed capable of being delivered in the market only meets 165 'UPS transportation standard, and no electric bed capable of meeting 130' UPS transportation standard exists. The customer is pressing to be able to meet 130"ups transport standards for further reduction of transport costs.
Disclosure of Invention
The invention provides a four-folding electric bed, which aims to solve the technical problem that the folding electric bed in the prior art cannot meet the 130' UPS transportation standard.
The four-fold electric bed comprises a base, a bed plate and a turnover device, wherein the bed plate is flatly paved on the top of the base, the turnover device is used for driving part of the bed plate to turn over relative to the base, the base comprises a first frame, a second frame, a third frame and a fourth frame, the first frame, the second frame, the third frame and the fourth frame are rotatably connected or detachably connected at the junctions in sequence, the bed plate comprises a back plate, a hip plate, a leg plate and a foot plate, the back plate, the hip plate, the leg plate and the foot plate are respectively arranged on the top of the first frame, the second frame, the third frame and the fourth frame, the tail of the back plate is hinged with the tail of the first frame, and the head of the leg plate is hinged with the head of the third frame.
Further, the bed board also comprises a head board, and the head board and the back board are rotatably connected or detachably connected at the junction.
Further, the back plate also includes a stop for limiting rotation of the head plate relative to the back plate.
Further, the limiting piece comprises at least one baffle which is rotatably connected with the back plate, the baffle is located in the vertical projection of the back plate when the head plate is rotatable, and the baffle is located in the vertical projection of the back plate and the head plate when the head plate is non-rotatable.
Further, the limiting piece comprises at least one bolt which is arranged on the back plate and can move in a telescopic mode relative to the head plate, the bolt is located in the vertical projection of the back plate when the head plate is rotatable, and the bolt is located in the vertical projection of the back plate and the vertical projection of the head plate when the head plate is non-rotatable.
Further, the second frame and the third frame are rotatably connected through a double-shaft rotating piece, and two ends of the double-shaft rotating piece are hinged with the second frame and the third frame respectively.
The double-shaft rotating piece further comprises a bearing part and two extending parts, wherein the two extending parts extend in opposite directions with the bearing part as a center, the extending surfaces of the two extending parts are different, and the two extending parts are hinged with the second frame and the third frame respectively.
Further, the hip plate and/or the leg plate are provided with openings matching the biaxial rotation member.
Further, the head part of the first frame, the tail part of the second frame and the bottom of the bearing part are provided with a plurality of bed leg connecting holes.
Further, the bed comprises a concave reinforcing sheet, two side walls of the reinforcing sheet are respectively attached to the side edges of the second frame and the third frame, and the reinforcing sheet is attached to the bottom of the bearing part and provided with through holes matched with the bed leg connecting holes.
Further, the first frame may be disposed within the space enclosed by the second frame, and the third frame may be disposed within the space enclosed by the fourth frame.
The device is further characterized in that the first frame is rotatably connected with the second frame through a first single-shaft rotating piece, the third frame is rotatably connected with the fourth frame through a second single-shaft rotating piece, two ends of the first single-shaft rotating piece are fixedly connected with the second frame and the third frame respectively, and two ends of the second single-shaft rotating piece are fixedly connected with the third frame and the fourth frame respectively.
Further, the first single-shaft rotating piece and the second single-shaft rotating piece comprise a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are hinged at the overlapping position.
Further, the device further comprises a first reinforcing anchor ear and a second reinforcing anchor ear, wherein the first reinforcing anchor ear is detachably connected with the second frame and the third frame, and the second reinforcing anchor ear is detachably connected with the third frame and the fourth frame.
Further, the first reinforcing anchor ear and the second reinforcing anchor ear comprise an L-shaped rotating part and a U-shaped enclasping part, the rotating part is fixedly connected with the enclasping part, the rotating part is rotationally connected with the base, and the rotating part and the enclasping part are respectively clamped on the base.
Further, the rotating portion and the clasping portion are integrally formed.
Further, the turnover device is arranged between the bed plate and the base, and the turnover device is used for driving the back plate and/or the leg plate to turn over relative to the base.
The turnover device comprises a first turnover device and a second turnover mechanism, wherein the first turnover device is arranged between the back plate and the first frame, the second turnover mechanism is arranged between the leg plate, the foot plate, the third frame and the fourth frame, the first turnover device and the second turnover mechanism comprise two sliding rods, a turnover rod and a driving part, the two sliding rods are respectively arranged at two ends of the turnover rod and are in an H-like shape, the middle part of each sliding rod protrudes towards the bed plate and is in an obtuse angle V shape, a rotatable first roller is arranged at the front part of each sliding rod, a rotatable second roller is arranged at the middle part of each sliding rod, the tail part of each sliding rod is hinged with the base, the turnover rod is arranged between the middle part of each sliding rod and the tail part of each sliding rod, the two ends of each driving part are respectively hinged with the corresponding turnover rod and the base, the horizontal direction of the driving part of each driving part of the sliding rod and the first roller is in the same horizontal direction as the first roller to the second roller, the first roller is parallel to the horizontal direction of the second roller, and the first roller and the horizontal direction of the second roller are parallel to the horizontal axes of the first roller and the second roller are parallel to the horizontal axis of the first roller and the second roller are parallel to the first roller and the second roller.
Further, the lengths and positions of the weight arm, the first resistance arm and the second resistance arm in the horizontal direction of the turning device in the flat state are adjusted according to the following formula (1) and formula (2), so that the lengths of the power arms of the turning devices in the vertical direction of the turning device in the flat state are reduced:
F1=(G×L3)÷L1 (1);
L2>(F1×L4)÷F (2);
Wherein, L1 represents a first resistance arm, L2 represents a power arm, L3 represents a weight arm, L4 represents a second resistance arm, G represents the load of the bed board, F represents the thrust, and F1 represents the resistance;
wherein the first resistance arm is above the second resistance arm.
Further, the back plate, the leg plates and the foot plates are all provided with hollowed holes, and the hollowed holes are located above the driving part.
Further, the driving part is a linear push rod.
Further, the linear push rod is push-only.
Further, the device also comprises sliding rails which are arranged in the back plate and the leg plate and matched with the corresponding first roller and the second roller.
Further, the sliding rail comprises a U-shaped sliding rail, the top edges of the two side walls of the sliding rail extend towards opposite directions to form sliding rail connecting parts, the bed board is provided with through holes, the sliding rail is positioned in the through holes, and the sliding rail connecting parts are connected with the bottom surface of the bed board.
The invention reduces the size after folding through the four-folding design, meets 130' UPS transportation standard, reduces transportation cost and enhances market competitiveness.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of a four-fold electric bed in an unfolded state according to an embodiment of the present invention;
FIG. 2 is a side view of a variation of a four-fold electric bed according to an embodiment of the present invention;
FIG. 3 is a bottom view of a four fold electric bed according to an embodiment of the present invention;
FIG. 4 is a schematic view showing a folded structure of a four-fold electric bed according to an embodiment of the present invention;
FIG. 5 is a perspective view of a portion A of a four-fold electric bed in a folded condition, according to an embodiment of the present invention;
FIG. 6 is a schematic view showing a semi-folded state of a four-folded electric bed according to an embodiment of the present invention;
FIG. 7 is an exploded view of section B according to an embodiment of the present invention;
FIG. 8 is an exploded view of section C of an embodiment of the present invention;
FIG. 9 is an enlarged view of a portion of a flipping unit according to an embodiment of the invention;
FIG. 10 is a schematic view of a moment arm of a tilting mechanism according to an embodiment of the present invention;
FIG. 11 is an exploded view of section C in an embodiment of the present invention.
Reference numerals illustrate:
0 a-head, 0 b-tail;
1-a base, 11-a first frame, 12-a second frame, 13-a third frame, 14-a fourth frame;
2-bed board, 21-head board, 22-back board, 23-hip board, 24-leg board, 25-foot board, 221-limit piece;
3-turning device, 3 a-first turning device, 3 b-second turning device, 31-sliding rod, 32-turning rod, 33-driving part, 311-first roller, 312-second roller;
4-biaxial rotation piece, 41-bearing part and 42-extension part;
5-reinforcing sheets;
6 a-a first connection plate, 6 b-a second connection plate;
7 a-a first reinforcing anchor ear, 7 b-a second reinforcing anchor ear, 71-a rotating part and 72-a holding part;
8-hollowed holes;
9-slide rail, 91-slide rail, 92-slide rail connecting portion.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic view of a fully folded state structure of a four-folded electric bed according to an embodiment of the present invention, fig. 2 is a side view of a changed state of the four-folded electric bed according to an embodiment of the present invention, fig. 3 is a schematic view of a folded state of the four-folded electric bed according to an embodiment of the present invention, and fig. 4 is a schematic view of a folded state of the four-folded electric bed according to an embodiment of the present invention, as shown in fig. 1 to 4, the four-folded electric bed provided by the present invention comprises a base 1, a bed plate 2 and a turning device 3, the bed plate 2 is tiled on top of the base 1, the turning device 3 is used for driving a part of the bed plate 2 to turn over relative to the base 1, wherein the base 1 comprises a first frame 11, a second frame 12, a third frame 13 and a fourth frame 14, and the first frame 11, the second frame 12, the third frame 13 and the fourth frame 14 are rotatably or detachably connected at junctions in sequence, the bed plate 2 comprises a back plate 22, a hip plate 23, a leg plate 24 and a foot plate 25, a back plate 22, a plate 23, a leg plate 24 and a foot plate 25, and a front plate 24, and a foot plate 24 are respectively hinged to the top part of the first frame 11, the third frame 11 a and the fourth frame 13 a and the fourth frame 0, 0 is hinged to the top part 0a frame 0.
The packaging size of the electric bed is generally dependent on the sizes of the bed plate 2 and the base 1, and the overturning device 3 is small in size and can be controlled by design to be packaged between the bed plate 2 and the base 1 or after being disassembled. The folding after dividing the bed board 2 and the base 1 into a plurality of parts can greatly reduce the packaging size of the electric bed, but the cost and the manufacturing difficulty are difficult to control.
The invention divides the bed board 2 into five parts and the base 1 into four parts, and the back board 22, the hip board 23, the leg board 24 and the foot board 25 are respectively and correspondingly arranged at the tops of the first frame 11, the second frame 12, the third frame 13 and the fourth frame 14, and only the spaces between the adjacent two of the first frame 11, the second frame 12, the third frame 13 and the fourth frame 14 are controlled to ensure folding. Meets 130' UPS transportation standard, reduces transportation cost and enhances market competitiveness.
Further, the bed board also comprises a head board 21, and the head board 21 and the back board 22 are rotatably connected or detachably connected at the juncture.
The head board 21 can be connected with the back board 22 in a rotatable mode or can be connected with the back board 22 in a detachable mode, interference does not occur with the base 1, after folding is completed at other positions, the head board 21 can be placed on the folding direction of the base 1, the standard area of the bed board 2 can be obtained, the size after folding can be further reduced, the scheme can be suitable for electric beds with more models, functions of the electric beds can be enriched conveniently, and universality is better.
Preferably, the first frame 11 may be placed in a space enclosed by the second frame 12, and the third frame 13 may be placed in a space enclosed by the fourth frame 14.
After folding, the first frame 11 and the second frame 12 are positioned in the same plane, the third frame 13 and the fourth frame 14 are positioned in the same plane, so that the thickness of the folded electric bed is reduced, the packaging size of the electric bed is further reduced, and the freight is reduced.
Further, fig. 5 is a perspective view of a portion a of a four-fold electric bed in a folded state according to an embodiment of the present invention, and as shown in fig. 3 and 5, the back plate 22 further includes a stopper 221, where the stopper 221 is used to restrict the rotation of the head plate 21 relative to the back plate 22.
The limiting piece 221 is additionally arranged on the back plate 22, so that the head plate 21 and the back plate 22 are connected into a whole, the area of the back plate 22 is enlarged, and a new bed leg is not required to be additionally arranged for supporting, thereby being convenient and rapid to fold.
Preferably, as shown in FIG. 5, stop 221 includes at least one baffle rotatably coupled to back plate 22, the baffle being in a vertical projection of back plate 22 when head plate 21 is rotatable, and the baffle being in a vertical projection of both back plate 22 and head plate 21 when head plate 21 is non-rotatable.
When the folding device is used, the head plate 21 and the back plate 22 are positioned in the same plane, then the baffle plate is rotated to be clamped with the head plate 21, the head plate 21 is limited to rotate relative to the back plate 22, and the head plate 21 and the back plate 22 are connected into a whole. Preferably in pairs on either side of the back panel 22, to provide better load bearing. The technical scheme is convenient and rapid to fold and unfold, and is simple and practical.
Preferably, the stop 221 comprises at least one latch provided on the back plate 22 and telescopically movable relative to the head plate 21, the latch being in a vertical projection of the back plate 22 when the head plate 21 is rotatable, and the latch being in a vertical projection of both the back plate 22 and the head plate 21 when the head plate 21 is non-rotatable.
When in use, the head plate 21 and the back plate 22 are positioned in the same plane, the bolt is extended to enable the bolt to be clamped with the head plate 21, the rotation of the head plate 21 relative to the back plate 22 is limited, and the head plate 21 and the back plate 22 are connected into a whole. Preferably in pairs on either side of the back panel 22, to provide better load bearing. The technical scheme is convenient and rapid to fold and unfold, and is simple and practical.
Further, fig. 6 is a schematic structural diagram of a semi-folded state of a four-folded electric bed according to an embodiment of the present invention, as shown in fig. 6, the second frame 12 and the third frame 13 are rotatably connected by a biaxial rotation member 4, and two ends of the biaxial rotation member 4 are hinged to the second frame 12 and the third frame 13, respectively.
The juncture of the second frame 12 and the third frame 13 is provided with the paired double-shaft rotating pieces 4, the second frame 12 and the third frame 13 respectively rotate along different rotation axes and do not interfere with each other, so that the electric bed is convenient to fold in two directions, the thickness of the electric bed after folding is limited, the folding is convenient, the internal parts are prevented from being damaged by extrusion after folding, and the damage is prevented.
Specifically, fig. 7 is an exploded view of a portion B in the embodiment of the present invention, and as shown in fig. 7, the biaxial rotation member 4 includes a bearing portion 41 and two extending portions 42, wherein the two extending portions 42 extend in opposite directions around the bearing portion 41, the extending surfaces of the two extending portions 42 are different, and the two extending portions 42 are hinged to the second frame 12 and the third frame 13, respectively.
The purpose of this design is in order to use less material to reach higher intensity under current structure, through structural adjustment, this part can make corresponding change, and helps further reduction electric bed's weight, reduces material and transportation cost.
Preferably, the hip plate 23 and/or the leg plate 24 are provided with openings matching the biaxial rotation element 4.
After folding, the biaxial rotator 4 intersects the openings in the hip plate 23 and/or leg plate 24, preventing them from interfering with each other and affecting the folding, as would be the case if the folding would not be possible without the openings. Like this, the length of shrink biax rotation piece 4 that can be as far as, the length of control electric bed, and then reduce the length of folding back electric bed in vertical and horizontal, further reduce the packing size of electric bed, leave more spaces for enriching the function of electric bed, just can accomplish the equipment of more parts at the mill, reduce transportation and installation cost, convenient quick installation and use, the commonality further promotes.
Specifically, the head part 0a of the first frame 11, the tail part 0b of the second frame 12, and the bottom of the bearing part 41 are provided with a plurality of foot connecting holes.
The bed leg connecting holes are used for installing bed legs, the specific number is selected according to the shape and weight of the bed, the requirement of supporting an electric bed is met, and the tool-free rapid installation is realized.
Further, as shown in fig. 3 and 7, the bed comprises a concave reinforcing sheet 5, wherein two side walls of the reinforcing sheet 5 are respectively connected with the side edges of the second frame 12 and the third frame 13, and the reinforcing sheet 5 is adhered to the bottom of the bearing part 41 and is provided with a through hole matched with the bed leg connecting hole.
The reinforcing sheet 5 serves to restrict relative displacement between the second frame 12, the third frame 13 and the biaxial rotator 4, and to strengthen the support, prevent sagging, and extend the life of the product.
Further, fig. 8 is an exploded view of a portion C in the embodiment of the present invention, as shown in fig. 8, the first frame 11 and the second frame 12 are rotatably connected by a first single-axis rotating member, the third frame 13 and the fourth frame 14 are rotatably connected by a second single-axis rotating member, two ends of the first single-axis rotating member are fixedly connected with the second frame 12 and the third frame 13 respectively, and two ends of the second single-axis rotating member are fixedly connected with the third frame 13 and the fourth frame 14 respectively.
Through add paired first unipolar rotation piece and paired second unipolar rotation piece in first frame 11 and second frame 12, third frame 13 and fourth frame 14 adjacent position, preferably set up in the both sides of base 1, stress distribution is more even, avoid first frame 11 and second frame 12 simultaneously, third frame 13 and fourth frame 14 are direct articulated, conveniently adjust the interval according to the demand, when guaranteeing fully folding, improve spare part's commonality, and it is more convenient to maintain when articulated damaging, need not to change whole bedstead, reduce maintenance cost.
Specifically, the first single-axis rotating piece and the second single-axis rotating piece comprise a first connecting plate 6a and a second connecting plate 6b, and the first connecting plate 6a and the second connecting plate 6b are hinged at the overlapping position.
The technical scheme is simple and convenient to produce and install, low in cost and high in practicability.
Further, as shown in FIG. 3, the device further comprises a first reinforcing hoop 7a and a second reinforcing hoop 7b, wherein the first reinforcing hoop 7a is detachably connected with the first frame 11 and the second frame 12, and the second reinforcing hoop 7b is detachably connected with the third frame 13 and the fourth frame 14.
For strengthening the connection between the first frame 11 and the second frame 12, the third frame 13 and the fourth frame 14, preventing sagging, and extending the service life of the electric bed.
Preferably, the first reinforcing anchor ear 7a and the second reinforcing anchor ear 7b comprise an L-shaped rotating part 71 and a U-shaped enclasping part 72, the rotating part 71 is fixedly connected with the enclasping part 72, the rotating part 71 is rotationally connected with the base 1, and the rotating part 71 and the enclasping part 72 are respectively clamped on the base 1.
The clasping portion 72 may be engaged with the rotating portion 71 in addition to the reinforcement connection. When the folding device is folded, the connection between the enclasping part 72 and the base 1 is dismantled, the first reinforcing hoop 7a and the second reinforcing hoop 7b can rotate relative to the base 1 through the rotating part 71 and the base 1, the folding restriction of the corresponding parts by the first reinforcing hoop 7a and the second reinforcing hoop 7b is removed, the first reinforcing hoop 7a and the second reinforcing hoop 7b are not required to be dismantled, and when the folding device is used, the restriction of the corresponding parts is completed by rotating the first reinforcing hoop 7a and the second reinforcing hoop 7b, so that the whole corresponding parts are formed. Simple and practical, convenient quick assembly disassembly reduces time and cost of labor of on-the-spot installation.
Preferably, the rotating portion 71 and the clasping portion 72 are integrally formed. The strength of the first reinforcing anchor ear 7a and the second reinforcing anchor ear 7b can be improved.
Preferably, a turning device 3 is provided between the bed plate 2 and the base 1, the turning device 3 being used to drive the back plate 22 and/or the leg plate 24 to turn over with respect to the base 1.
By varying the angle of the back plate 22 and/or leg plate 24, the physiological curves of different parts of the human body are met, better support is provided to the human body, the body is relaxed, and a better experience is provided to the user.
Further, fig. 9 is a partial enlarged view of a turning device in the embodiment of the invention, as shown in fig. 2 and 9, the turning device 3 includes a first turning device 3a and a second turning device 3b, the first turning device 3a is disposed between the back plate 22 and the first frame 11, the second turning device 3b is disposed between the leg plate 24, the foot plate 25, the third frame 13 and the fourth frame 14, wherein the first turning device 3a and the second turning device 3b each include two sliding rods 31, a turning rod 32 and a driving member 33, the two sliding rods 31 are respectively disposed at two ends of the turning rod 32 and are H-shaped, the middle part of the sliding rod 31 protrudes towards the bed plate 2 and is obtuse V-shaped, a first roller 311 is disposed at the middle part of the sliding rod 31, a rotatable second roller 312 is disposed at the middle part of the sliding rod 31, a tail part 0b of the sliding rod 31 is hinged with the base 1, the turning rod 32 is disposed between the middle part of the sliding rod 31 and the tail part 0b of the sliding rod 31, two ends of the driving member 33 are respectively hinged with the turning rod 32 and the base 1, the driving members 33 are horizontally oriented to the second rollers 311 and the first roller 311 and the second roller plate 2, and the second roller 312 are horizontally oriented to the second roller plate 2, and the second roller 311 is horizontally oriented to the second roller plate 2, and the second roller 312 is horizontally oriented to the second roller plate 2, and the front roller 312 is horizontally oriented to the second roller plate 312.
The sliding rod 31 is hinged with the base 1, and the sliding rod 31 adopts a bent structure, namely, the middle part of the sliding rod forms an obtuse angle, and the obtuse angle is 120-170 degrees. When the driving part 33 pushes the bed plate 2 to turn over, the turning rod 32 drives the sliding rod 31 to rotate by taking the hinge point of the sliding rod 31 and the base 1 as a rotating shaft, the second roller 312 rolls on the bottom surface of the corresponding bed plate 2 to push the corresponding bed plate 2 to turn upwards relative to the base 1, when the pushed bed plate 2 turns over to 20-30 degrees relative to the base 1, the first roller 311 contacts with the bottom surface of the bed plate 2 and rolls on the bottom surface of the bed plate 2, when only one roller turns over to 20-30 degrees, very large resistance occurs when the supporting component turns over, the other roller is additionally arranged to overcome the resistance, the stable turning over of the bed plate 2 is ensured, the thickness of the intelligent bed is reduced due to the structure of the driving device, and the intelligent bed is thinner.
In addition, each turning device 3 is not connected with the bed board 2, once an object prevents the lifted bed board 2 from falling, the turning device 3 and the bed board 2 are changed from a contact state to a non-contact state, and clamping injury is prevented.
Preferably, a reinforcing plate 313 is provided at an angle of the slide bar 31 and the flip bar 32. The connection strength between the sliding rod 31 and the turning rod 32 is enhanced, and the strength of the turning device is improved. The sliding rod 31 and the reinforcing plate 313 are both sheet-shaped, so that the mass and volume of the components are reduced as much as possible on the basis of not affecting the function, and the mass and volume of the intelligent bed are reduced.
Preferably, the turning rod 32 is fixedly provided with a U-shaped lug 321, and the driving part 33 is hinged with the turning rod 32 through the U-shaped lug 321, so that the turning rod is firm and durable and is convenient to produce and assemble.
Preferably, fig. 10 is a schematic view of a moment arm of a turnover mechanism according to an embodiment of the present invention, as shown in fig. 10, according to the following formula (1) and formula (2), the lengths and positions of a weight arm, a first resistance arm and a second resistance arm of the turnover device 3 in a horizontal direction in a flat state are adjusted so as to reduce the lengths of the power arms of the turnover devices 3 in a vertical direction in the flat state:
F1=(G×L3)÷L1 (1);
L2>(F1×L4)÷F (2);
wherein, L1 represents a first resistance arm, L2 represents a power arm, L3 represents a weight arm, L4 represents a second resistance arm, G represents the load of the bed board 2, F represents the thrust, and F1 represents the resistance;
wherein the first resistance arm is above the second resistance arm.
The resistance force F1 is the force perpendicular to the base 120 from the contact point of the second roller 312 and the sliding rail 9, the load G is the gravity perpendicular to the midpoint of the bed board 2 contacted by the second roller 312, the gravity arm L3 is the linear distance from the midpoint of the bed board 2 contacted by the second roller 312 to the rotation axis of the bed board 2, the resistance force arm L1 is the linear distance from the contact point of the second roller 312 and the bed board 2 to the rotation axis of the bed board 2, and the power arm L2 is the linear distance from the hinge point of the sliding rod 31 and the base 1 to the extension line of the thrust force F.
The length of the power arm L2 is in a proportional relation with the thickness of the turnover device 3, namely, the shorter the length of the power arm L2 is, the thinner the thickness of the turnover device 3 is, and the thickness of the intelligent bed is affected. For example, increasing the first resistance arm length, decreasing the weight arm length to decrease the resistance, decreasing the second resistance arm length in the case of decreasing the resistance, further decreasing the power arm length, etc. When F <3000N, G >1285N, namely under the condition that the intelligent bed bears the weight of a human body, the force arm position is simulated and changed through stress analysis, the change of stress is calculated, the optimal force arm is found, the force arm structure of the intelligent bed is optimized, the thickness of the intelligent bed is reduced, the intelligent bed is thinned, the volume of the intelligent bed is effectively controlled, and the transportation cost is reduced.
Further, as shown in fig. 3, the back plate 22, the leg plate 24 and the foot plate 25 are provided with hollowed holes 8, and the hollowed holes 8 are located above the driving part 33.
The hollow holes 8 can be formed in each bed board 2, and the size and arrangement mode of the hollow holes 8 can be set according to the needs. The hollowed-out holes 8 can reduce the weight of the intelligent bed, can avoid scratch with the driving part 33, can also accommodate the hinging part of the driving part 33 and the turnover rod 32, and further reduce the thickness of the intelligent bed.
Preferably, the driving member 33 is a linear push rod.
The linear push rod has lower cost, is convenient to control the volume of the intelligent bed, and is simple and practical.
Preferably, the linear push rod is push-only.
The push-only linear push rod only outputs pushing force, and outputs pulling force, namely the bed board 2 falls down only by gravity in the falling process, the sliding rod 31 and the turnover rod 32 also fall down by self gravity, and the contact sliding of the matched roller and the bed board 2 is matched, so that the danger of clamping injury caused by the bed board 2 and the turnover device 3 is completely avoided.
Further, FIG. 11 is an exploded view of the C portion of the embodiment of the present invention, as shown in FIG. 11, and further includes a sliding rail 9, wherein the sliding rail 9 is disposed in the back plate 22 and the leg plate 24 and matches with the corresponding first roller 311 and second roller 312.
The sliding rail 9 can be arranged in the bed plate 2, the top of the sliding rail 9 is closer to the top surface of the bed plate 2, the whole thickness of the electric bed is thinner, the sliding rail 9 can be made of wear-resistant materials such as metal, the roller is prevented from being worn due to long-term contact with the bed plate 2, and the durability of products is improved.
Preferably, the slide rail 9 comprises a U-shaped slide rail 91, the top edges of two side walls of the slide rail 91 extend towards opposite directions to form a slide rail connecting part 92, the bed plate 2 is provided with a through hole, the slide rail 91 is positioned in the through hole, and the slide rail connecting part 92 is connected with the bottom surface of the bed plate 2.
The U-shaped slide rail 91 limits the rollers in a specific direction, prevents displacement and damage of the rollers, and the slide rail connecting part 92 is used for increasing the contact area of the slide rail 9 and the bed board 2, preventing the bed board 2 from being damaged due to overlarge local pressure and prolonging the service life of products.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof.
Claims (19)
1. A four-fold electric bed is characterized by comprising a base, a bed plate and a turning device, wherein the bed plate is flatly paved on the top of the base, the turning device is used for driving part of the bed plate to turn over relative to the base,
The base comprises a first frame, a second frame, a third frame and a fourth frame, wherein the first frame, the second frame, the third frame and the fourth frame are rotatably connected or detachably connected at the junction in sequence;
the bed board comprises a back board, a hip board, a leg board and a foot board;
The back plate, the hip plate, the leg plate and the foot plate are respectively arranged on the tops of the first frame, the second frame, the third frame and the fourth frame;
The tail of the back plate is hinged with the tail of the first frame, and the head of the leg plate is hinged with the head of the third frame;
The second frame and the third frame are rotatably connected through a double-shaft rotating piece, and two ends of the double-shaft rotating piece are respectively hinged with the second frame and the third frame;
the double-shaft rotating piece comprises a bearing part and two extending parts;
wherein, the two extension parts extend towards opposite directions by taking the bearing part as the center, and the extension surfaces of the two extension parts are different;
Two extension parts are respectively hinged with the second frame and the third frame;
The first frame is arranged in the space enclosed by the second frame, and the third frame is arranged in the space enclosed by the fourth frame;
The first frame is rotatably connected with the second frame through a first single-shaft rotating piece, and the third frame is rotatably connected with the fourth frame through a second single-shaft rotating piece;
the two ends of the first single-shaft rotating piece are fixedly connected with the second frame and the third frame respectively, and the two ends of the second single-shaft rotating piece are fixedly connected with the third frame and the fourth frame respectively;
The first single-shaft rotating piece and the second single-shaft rotating piece comprise a first connecting plate and a second connecting plate, and the first connecting plate is hinged with the second connecting plate at the overlapping position.
2. The four fold electric bed of claim 1 wherein the bed deck further comprises a head panel rotatably or removably connected to the back panel at an interface.
3. The four fold electric bed of claim 2, wherein the back plate further comprises a stop for limiting rotation of the head plate relative to the back plate.
4. The four fold electric bed of claim 3, wherein the stop member comprises at least one baffle rotatably connected to the back plate;
when the head plate is rotatable, the baffle is in a vertical projection of the back plate;
When the headboard is not rotatable, the baffle is in a perpendicular projection of both the back plate and the headboard.
5. The four fold electric bed of claim 3 wherein the stop comprises at least one latch disposed on the back panel and telescopically movable relative to the head panel;
when the head plate is rotatable, the latch is in a vertical projection of the back plate;
when the head plate is not rotatable, the latch is in a perpendicular projection of both the back plate and the head plate.
6. The four-fold electric bed according to claim 1, characterized in that the hip plate and/or the leg plate are provided with openings matching the biaxial rotation element.
7. The four fold electric bed of claim 1, wherein the head portion of the first frame, the tail portion of the second frame, and the bottom portion of the load-bearing portion are provided with a plurality of foot attachment holes.
8. The four-fold electric bed according to claim 7, further comprising a concave reinforcing sheet, wherein two side walls of the reinforcing sheet are respectively attached to the side edges of the second frame and the third frame, and the reinforcing sheet is attached to the bottom of the bearing part and is provided with a through hole matched with the foot connecting hole.
9. The four fold electric bed of claim 1, further comprising a first reinforcing anchor and a second reinforcing anchor, the first reinforcing anchor being removably connected to the second frame and the third frame, the second reinforcing anchor being removably connected to the third frame and the fourth frame.
10. The four fold electric bed of claim 9, wherein the first reinforcing anchor ear and the second reinforcing anchor ear each comprise an L-shaped rotating portion and a U-shaped clasping portion, the rotating portion and the clasping portion are fixedly connected, the rotating portion is rotatably connected with the base, and the rotating portion and the clasping portion are respectively clamped on the base.
11. The four fold electric bed of claim 10, wherein the rotating portion and the clasping portion are integrally formed.
12. The four fold electric bed according to any one of claims 2 to 5, wherein the turning device is provided between the bed deck and the base, the turning device being adapted to drive the back panel and/or the leg panel to turn over relative to the base.
13. The four fold electric bed of claim 12, wherein the flipping unit comprises a first flipping unit disposed between the back panel and the first frame and a second flipping unit disposed between the leg panel, the foot panel, the third frame, and the fourth frame;
the first turnover device and the second turnover mechanism comprise two sliding rods, a turnover rod and a driving part;
the two sliding rods are respectively arranged at two ends of the turning rod and are shaped like H;
The middle part of the sliding rod protrudes towards the bed board to form an obtuse V shape, a rotatable first roller is arranged at the head part of the sliding rod, a rotatable second roller is arranged at the middle part of the sliding rod, and the tail part of the sliding rod is hinged with the base;
the overturning rod is positioned between the middle part of the sliding rod and the tail part of the sliding rod;
the two ends of the driving part are respectively hinged with the turnover rod and the base, and the horizontal direction of the thrust of the driving part is the same as the horizontal direction from the first roller to the second roller;
the horizontal direction from the first roller to the second roller points to the rotating axis of the turning device driving the bed board where the first roller and the second roller are positioned;
the axes of rotation of the first roller, the second roller, the slide bar, the head plate, the back plate, and the leg plate are parallel to each other.
14. The four-fold electric bed according to claim 12, wherein lengths and positions of the horizontal-direction weight arm, the first resistance arm, and the second resistance arm of the turning device in the flat state are adjusted according to the following formulas (1) and (2) to reduce lengths of the vertical-direction power arms of the turning devices in the flat state:
F1=(G×L3)÷L1 (1);
L2>(F1×L4)÷F (2);
Wherein, L1 represents a first resistance arm, L2 represents a power arm, L3 represents a weight arm, L4 represents a second resistance arm, G represents the load of the bed board, F represents the thrust, and F1 represents the resistance;
wherein the first resistance arm is above the second resistance arm.
15. The four fold electric bed of claim 13, wherein the back plate, leg plate, and foot plate are each provided with a hollowed out hole located above the drive member.
16. The four fold electric bed of claim 13, wherein the drive member is a linear push rod.
17. The four fold electric bed of claim 16, wherein the linear push rod is push only.
18. The four fold electric bed of claim 13, further comprising a slide rail disposed within the back panel and the leg panel and mated with the respective first roller and the second roller.
19. The four fold electric bed of claim 18 wherein the slide rail comprises a U-shaped slide rail, the top edges of the two side walls of the slide rail extend in opposite directions to form a slide rail connection, the bed plate is provided with a through hole, the slide rail is positioned in the through hole, and the slide rail connection is connected with the bottom surface of the bed plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011167936.5A CN114468662B (en) | 2020-10-27 | 2020-10-27 | A four-folding electric bed |
| PCT/CN2021/079268 WO2022088574A1 (en) | 2020-10-27 | 2021-03-05 | Four-fold folding electric bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011167936.5A CN114468662B (en) | 2020-10-27 | 2020-10-27 | A four-folding electric bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114468662A CN114468662A (en) | 2022-05-13 |
| CN114468662B true CN114468662B (en) | 2025-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011167936.5A Active CN114468662B (en) | 2020-10-27 | 2020-10-27 | A four-folding electric bed |
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|---|---|
| CN (1) | CN114468662B (en) |
| WO (1) | WO2022088574A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12440036B2 (en) * | 2019-01-07 | 2025-10-14 | Nisco Co., Ltd | Foldable and adjustable beds |
| CN114903310B (en) * | 2022-05-20 | 2023-12-01 | 乐歌人体工学科技股份有限公司 | Foldable electric bed frame and electric bed |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214386879U (en) * | 2020-10-27 | 2021-10-15 | 麒盛科技股份有限公司 | A four-folding electric bed |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3038667U (en) * | 1996-12-11 | 1997-06-24 | 政鋼機械工業有限公司 | Simple folding sofa bed frame |
| US8935817B2 (en) * | 2013-06-17 | 2015-01-20 | Pragma Corporation | Motorized foldable bed frame assembly |
| CN203717564U (en) * | 2014-01-21 | 2014-07-16 | 来关仁 | Hoop-type furniture folding connection mechanism |
| CN203815026U (en) * | 2014-05-13 | 2014-09-10 | 贾秋萍 | Guardrail for nursing bed |
| CN206044056U (en) * | 2016-06-20 | 2017-03-29 | 常州裕丰家具有限公司 | Folding electric bed |
| CN106724331B (en) * | 2016-12-30 | 2019-01-15 | 浙江世道电器有限公司 | The hanging sinking type electric in back nurses bedstead |
| US10849433B2 (en) * | 2017-09-01 | 2020-12-01 | Ascion, Llc | Adjustable bed with tri-fold adjustable foundation |
| CN208658390U (en) * | 2017-09-21 | 2019-03-29 | 常州匠心独具智能家居股份有限公司 | Ultrathin electric bed |
| CN209135908U (en) * | 2018-05-15 | 2019-07-23 | 蔡芳 | Band pillow-type four-folding folding bed |
| CN209331531U (en) * | 2018-08-30 | 2019-09-03 | 麒盛科技股份有限公司 | A kind of plane folding bed |
| CN209610522U (en) * | 2018-09-21 | 2019-11-12 | 麒盛科技股份有限公司 | A kind of double freedom folding electric bed and its connector |
| CN209360139U (en) * | 2018-10-16 | 2019-09-10 | 唐锋 | Four fold nursing bed |
| US10986932B2 (en) * | 2019-01-07 | 2021-04-27 | Nisco Co., Ltd | Adjustable bed system with foldable connection mechanism |
| US11744380B2 (en) * | 2019-01-24 | 2023-09-05 | Ppj, Llc | Foldable and shippable adjustable bed assembly |
| CN211021804U (en) * | 2019-08-15 | 2020-07-17 | 麒盛科技股份有限公司 | Three-folding electric bed |
| CN211483726U (en) * | 2019-12-02 | 2020-09-15 | 嘉兴市朗爵金属家具有限公司 | Three-folding electric adjusting bed |
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2020
- 2020-10-27 CN CN202011167936.5A patent/CN114468662B/en active Active
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2021
- 2021-03-05 WO PCT/CN2021/079268 patent/WO2022088574A1/en not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214386879U (en) * | 2020-10-27 | 2021-10-15 | 麒盛科技股份有限公司 | A four-folding electric bed |
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| WO2022088574A1 (en) | 2022-05-05 |
| CN114468662A (en) | 2022-05-13 |
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