CN218451457U - Multi-section furniture lifting device - Google Patents
Multi-section furniture lifting device Download PDFInfo
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- CN218451457U CN218451457U CN202222689112.5U CN202222689112U CN218451457U CN 218451457 U CN218451457 U CN 218451457U CN 202222689112 U CN202222689112 U CN 202222689112U CN 218451457 U CN218451457 U CN 218451457U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 142
- 230000009975 flexible effect Effects 0.000 claims abstract description 18
- 230000000712 assembly Effects 0.000 claims abstract description 15
- 238000000429 assembly Methods 0.000 claims abstract description 15
- 230000001360 synchronised effect Effects 0.000 claims abstract description 8
- 230000003139 buffering effect Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000003028 elevating effect Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 241001122767 Theaceae Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
A multi-section furniture lifting device comprises two lifting components and a driving unit, wherein each lifting component comprises a plurality of sections of sleeves and a lead screw telescopic component, the plurality of sections of sleeves are sleeved layer by layer from inside to outside, a containing cavity positioned in each lifting component is formed by combining the plurality of sections of sleeves, the lead screw telescopic component is arranged in the containing cavity, a supporting base is arranged at the bottom of the outermost sleeve, a mounting seat is arranged at the top of the innermost sleeve, and a reversing box for driving the lead screw telescopic component to stretch and retract is arranged in each mounting seat; the drive unit comprises a transmission shaft assembly and a motor unit, the motor unit is connected with and drives the transmission shaft assembly to rotate, and the left end and the right end of the transmission shaft assembly are in transmission connection with the reversing boxes on the two lifting assemblies respectively. The utility model discloses realize the synchronous flexible purpose of two flexible subassemblies of lead screw of same motor element drive, avoided the phenomenon of card machine to appear because of two motor operation differences, effectively improve the stability that the desktop board goes up and down.
Description
Technical Field
The utility model relates to the field of furniture, concretely relates to multisection formula furniture elevating gear.
Background
Furniture such as an automatic lifting table or a self-lifting tea table generally takes electricity as a power source, and the height of a table top plate of the automatic lifting table or the self-lifting tea table is adjusted by controlling a mechanical device through a motor so as to meet different use requirements of users.
Chinese patent document No. CN215899094U discloses an electric lifting table device, which includes a table top plate, two motors, a cross beam, two lifting columns, two side plates, and two bottom feet, wherein the cross beam is installed in parallel between the two lifting columns, two ends of the cross beam are respectively fixed to the upper ends of the two lifting columns, the two side plates are respectively installed on the upper portions of the two lifting columns, the table top plate is installed on the side plates on two sides, the two bottom feet are respectively installed at the bottoms of the two lifting columns, the two motors are respectively installed in the lifting columns and connected to screw rod assemblies in the lifting columns, the motors drive screw rods in the screw rod assemblies to rotate, and the screw rods in the screw rod assemblies are screwed with the screw threads of the screw rod nuts to realize axial movement so as to drive the table top plate to lift and adjust the height.
However, this technical scheme adopts two motors to drive two lead screw subassemblies respectively and drives the desktop board action of going up and down, consequently needs two motors of simultaneous control to start or stop, and easily leads to the card machine when the asynchronous operating condition of two motors appears, and the stability that the desktop board goes up and down is comparatively general.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a multi-section furniture lifting device.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a multisection formula furniture elevating gear, includes two lifting unit, drive unit, lifting unit includes a plurality of sections sleeve pipes, is used for linking the flexible subassembly of lead screw of flexible activity between a plurality of sections sleeve pipes, and a plurality of sections sleeve pipes cup joint the setting from interior to exterior layer upon layer, and a plurality of sections sleeve pipe combinations are formed with the chamber that holds that is located lifting unit, the flexible subassembly of lead screw is located and is held the intracavity, is located outermost sleeve pipe bottom and is equipped with support base, its characterized in that: the top of the casing pipe positioned on the innermost layer is provided with a mounting seat, and a reversing box which is connected and drives the screw rod telescopic assembly to stretch and retract is arranged in the mounting seat; the drive unit comprises a transmission shaft assembly and a motor unit used for inputting power to the reversing box, the motor unit is connected with and drives the transmission shaft assembly to rotate, and the left end and the right end of the transmission shaft assembly are respectively in transmission connection with the reversing boxes on the two lifting assemblies.
The utility model discloses in, be equipped with the anti-disengaging structure who prevents their disconnection separation between the inside and outside adjacent sleeve pipe.
The utility model discloses in, anti-disengaging structure is including installing the anticreep fitting piece in inlayer sleeve pipe outside bottom, installing the anticreep locating part at outer sleeve pipe top, the anticreep locating part is used for blockking the anticreep fitting piece.
The utility model discloses in, be connected with flexible coupling assembling jointly between two lifting unit's the mount pad, the scalable regulation of length of flexible coupling assembling.
The utility model discloses in, flexible coupling assembling includes intermediate junction spare, two can adopt the bolted connection mode to set firmly on two lifting unit's mount pad respectively for the telescopic connection spare of intermediate junction spare slide adjusting position, be equipped with on the telescopic connection spare and be used for fixing a plurality of locking bolt on the intermediate junction spare with the telescopic connection spare.
In the utility model, the transmission shaft assembly comprises an intermediate transmission rod, a first transmission shaft and a second transmission shaft, a telescopic linkage cavity is arranged inside the intermediate transmission rod, the first transmission shaft and the second transmission shaft are respectively inserted and matched on two ends of the telescopic linkage cavity, and the cross-sectional shapes of the first transmission shaft, the second transmission shaft and the telescopic linkage cavity are all polygons; the first transmission shaft and the second transmission shaft are respectively in transmission connection with the reversing boxes on the two lifting assemblies, and the rotating output end of the motor unit is in transmission connection with the first transmission shaft.
In the utility model, the position of the first transmission shaft or/and the second transmission shaft relative to the middle transmission shaft can be movably adjusted; and a position locking structure for locking the position of the first transmission shaft is arranged on the middle transmission rod.
In the utility model, the screw rod telescopic component comprises a middle supporting tube, an external transmission screw rod, a lower supporting tube and an internal transmission screw rod;
a lower telescopic guide seat is fixedly arranged on the top of the lower supporting tube, a lower guide groove is formed in the inner wall of the middle supporting tube, a lower guide block is arranged on the outer wall of the lower telescopic guide seat, and the lower guide block is in sliding fit in the lower guide groove;
the middle part of the lower telescopic guide seat is provided with a lower transmission screw hole, the outer transmission screw rod is in threaded fit with the lower transmission screw hole, and the outer transmission screw rod drives the lower support tube to move along the lower guide groove in a telescopic way when rotating;
an upper telescopic guide seat is mounted at the top of the middle supporting tube, a rotary mounting cavity and an upper transmission screw hole positioned above the rotary mounting cavity penetrate through the middle part of the upper telescopic guide seat, and a rotary bearing which is installed in the rotary mounting cavity in a matched mode is fixedly arranged at the upper end of the outer transmission screw rod;
the top of the inner transmission screw rod is in transmission connection with the rotary output end of the reversing box; the lower end of the inner transmission screw rod is in threaded fit with the upper transmission screw hole, and the bottom of the inner transmission screw rod is provided with a synchronous structure which enables the inner transmission screw rod and the outer transmission screw rod to synchronously rotate.
The utility model discloses in, the cover is equipped with the buffering rubber ring on the interior transmission lead screw, the buffering rubber ring is located between flexible guide holder and the switching-over case.
The utility model has the advantages that:
1. the utility model discloses a drive unit comprises motor unit and drive shaft subassembly, and the switching-over case on two lift subassemblies is connected to the drive shaft subassembly, and when motor unit passed through the drive shaft subassembly and given switching-over case input power, the flexible subassembly of lead screw in the lift subassembly was driven by the switching-over case and is stretched out and drawn back, and each sleeve pipe of lift subassembly also stretches out and draws back the slip thereupon to realize the purpose that same motor unit drove two flexible subassemblies of lead screw synchronous telescope, avoided appearing the phenomenon of card machine because of two motors operation differences, effectively improved the stability that the desktop board goes up and down;
2. the screw rod telescopic assembly is provided with a buffer rubber ring for buffering when the screw rod telescopic assembly retracts, so that the phenomenon of impacting the reversing box is avoided.
Drawings
The invention will be further explained with reference to the drawings and the embodiments below:
FIG. 1 is a perspective view of the present embodiment;
FIG. 2 is a partial schematic view of the present embodiment;
FIG. 3 is an exploded view of the sleeve and the anti-separation structure;
FIG. 4 is an internal view of the present embodiment;
fig. 5 is a schematic view of the installation of the lead screw telescoping assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.
Referring to fig. 1-5, a multi-section furniture lifting device comprises two lifting components 100 and a driving unit 200, wherein each lifting component 100 comprises a plurality of sections of sleeves 1 and a lead screw telescopic component 2 for linking telescopic activities among the plurality of sections of sleeves 1, the plurality of sections of sleeves 1 are sleeved from inside to outside layer by layer, a containing cavity located in each lifting component 100 is formed by combining the plurality of sections of sleeves 1, the lead screw telescopic component 2 is arranged in the containing cavity, and a supporting base 3 is arranged at the bottom of the outermost sleeve 1. Furthermore, a mounting seat 4 is arranged on the top of the casing pipe 1 positioned on the innermost layer, a reversing box 5 connected to drive the lead screw telescopic assembly 2 to stretch and retract is arranged in the mounting seat 4, and the reversing box 5 is fixedly connected with the mounting seat 4 through bolts. Drive unit 200 is used for driving two elevating assembly 100 synchronous lifting, drive unit 200 includes transmission shaft assembly 6, is used for to the motor unit 7 of 5 input power of switching-over case, motor unit 7 is connected and is driven transmission shaft assembly 6 rotatory, both ends are connected with the 5 transmissions of switching-over case on two elevating assembly 100 respectively about transmission shaft assembly 6 to with the power output of motor unit 7 output to switching-over case 5 in, let switching-over case 5 drive the flexible action of 2 of lead screw flexible subassembly, realize that a motor unit 7 drives the flexible purpose of 2 simultaneous extensions of two lead screw flexible subassemblies.
In a preferred embodiment, in order to improve the reliability of the up-and-down sliding between the sleeves 1, a separation preventing structure is provided between the inner and outer adjacent sleeves 1 to prevent them from being separated. Further, anti-disengaging structure is including installing anticreep fitting piece 8 in 1 outside bottom of inlayer sleeve pipe, installing at the anticreep locating part 9 at 1 top of outer sleeve pipe, anticreep locating part 9 is used for blockking anticreep fitting piece 8. When the anti-dropping matching piece 8 is abutted to the anti-dropping limiting piece 9, the inner and outer adjacent sleeves 1 extend to the maximum extension length, so that the limiting is realized.
In this embodiment, a first mounting hole 101 and an avoiding notch 102 are provided on the bottom of the inner casing 1, the anti-disengagement fitting 8 includes an anti-disengagement fitting plate 81 and a first protrusion 82 protruding from the inner side of the anti-disengagement fitting plate 81, and the first protrusion 82 is inserted into the first mounting hole 101, so that the anti-disengagement fitting 8 is mounted on the outer bottom of the inner casing 1; a second mounting hole 103 is formed in the top of the outer side of the outer sleeve 1, the anti-falling limiting part 9 comprises an anti-falling limiting sleeve 91, an anti-falling limiting part 92 protruding from the bottom of the anti-falling limiting sleeve 91, and a second protrusion 93 protruding from the anti-falling limiting part 92, and the second protrusion 93 is inserted into and matched with the second mounting hole 103, so that the anti-falling limiting part 9 is mounted on the top of the outer sleeve 1; in addition, when the two sleeves 1 are assembled, the anti-drop limiting part 92 can deform to enter the avoiding notch 102, so that the second protrusion 93 on the anti-drop limiting part 92 is inserted and matched in the second mounting hole 103 to achieve the purpose of convenient installation.
As a preferred embodiment, in order to improve the connection stability between two lifting assemblies 100, a telescopic connection assembly 300 is commonly connected between the mounting seats 4 of the two lifting assemblies 100, and the length of the telescopic connection assembly 300 can be telescopically adjusted, so that the distance between the two lifting assemblies 100 can be adjusted by using the telescopic connection assembly 300, and the mounting requirements of table tops of different specifications can be met.
As a preferred embodiment, the telescopic connecting assembly 300 includes a middle connecting member 301, and two telescopic connecting members 302 capable of adjusting positions of the telescopic connecting member 302 in a sliding manner relative to the middle connecting member 301, the two telescopic connecting members 302 are respectively fixed on the mounting seats 4 of the two lifting assemblies 100 in a bolt connection manner, and a plurality of locking bolts for fixing the telescopic connecting members 302 on the middle connecting member 301 are arranged on the telescopic connecting members 302, and the locking bolts are not shown in the drawings; when the table is needed, the table top is connected with the telescopic connector 302 by bolts, so that the table top is connected with the lifting device.
In this embodiment, a plurality of first connection holes 303 are formed in the middle connection member 301 and spaced from left to right, a plurality of second connection holes 304 are formed in the telescopic connection member 302 and spaced from left to right, and the locking bolts are sequentially inserted into the second connection holes 304 and the first connection holes 303, so as to lock the relative positions between the middle connection member 301 and the telescopic connection member 302. In addition, in order to enhance the connection stability between the telescopic connector 302 and the mounting seat 4, an L-shaped connector 305 is connected between the telescopic connector 302 and the mounting seat 4, one end of the L-shaped connector 305 is connected to the mounting seat 4 by welding, and the other end of the L-shaped connector 305 is fixed to the telescopic connector 302 by bolting.
In a preferred embodiment, the transmission shaft assembly 6 includes an intermediate transmission shaft 61, a first transmission shaft 62 and a second transmission shaft 63, a telescopic linkage cavity is provided inside the intermediate transmission shaft 61, the first transmission shaft 62 and the second transmission shaft 63 are respectively inserted and fitted on two ends of the telescopic linkage cavity, and the cross-sectional shapes of the first transmission shaft 62, the second transmission shaft 63 and the telescopic linkage cavity are all polygonal, such as hexagonal; the cross section shapes of the first transmission shaft 62 and the second transmission shaft 63 are matched with the cross section shape of the telescopic linkage cavity, so that the intermediate transmission rod 61, the first transmission shaft 62 and the second transmission shaft 63 can synchronously rotate; the first transmission shaft 62 and the second transmission shaft 63 are respectively in transmission connection with the reversing boxes 5 on the two lifting assemblies 100, and the rotation output end of the motor unit 7 is in transmission connection with the first transmission shaft 62 to drive the whole transmission shaft assembly 6 to rotate.
In this embodiment, the position of the first transmission shaft 62 or/and the second transmission shaft 63 is movably adjusted relative to the intermediate transmission shaft 61 so as to adapt to the power input requirements of the telescopic support assemblies of the lifting assembly 100 at different distances.
In this embodiment, it is preferable that the position of the first transmission shaft 62 is movably adjusted relative to the intermediate transmission rod 61, the intermediate transmission rod 61 is provided with a position locking structure 64 for locking the position of the first transmission shaft 62, the position locking structure 64 can refer to an existing cable gland clamping joint and comprises a locking head 641 and a clamping nut 642, the locking head 641 is installed at one end of the intermediate transmission rod 61, the clamping nut 642 is screwed on the locking head 641, the first transmission shaft 62 passes through the locking head 641 and an inner ring of the clamping nut 642, and a deformation part of the locking head 641 is driven to lock the first transmission shaft 62 by screwing the clamping nut 642; in addition, the position locking structure 64 may also be a first bolt screwed to the intermediate transmission rod 61, and after the position of the first transmission shaft 62 is determined, the first bolt is rotated to extend into the telescopic linkage cavity and abut against the first transmission shaft 62 to lock the first transmission shaft 62.
In the above structure, the motor unit 7 may be mounted on the bottom of the table top by bolts, or may be mounted on one of the telescopic connectors 302 by bolts, and may be selectively mounted according to different production requirements, in this embodiment, the motor unit 7 is mounted on the bottom of the table top. The motor unit 7 comprises a driving motor 71 and a reduction gearbox 72, the reduction gearbox 72 is connected with the table top plate through bolts, the driving motor 71 is installed on the reduction gearbox 72, a rotating output shaft of the driving motor 71 is in transmission connection with a rotating input end of the reduction gearbox 72, and a rotating output end of the reduction gearbox 72 is in transmission connection with the first transmission shaft 62, so that the transmission shaft assembly 6 is driven to rotate.
In a preferred embodiment, the structure of the screw rod expansion and contraction unit 2 is substantially the same as that of the chinese patent document CN215899094U, and the general structure and principle thereof can be referred to. The screw rod telescopic component 2 comprises a middle support pipe 21, an outer transmission screw rod 22, a lower support pipe 23 and an inner transmission screw rod 24, wherein the outer transmission screw rod 22 is arranged in the middle support pipe 21, the lower support pipe 23 is sleeved outside the outer transmission screw rod 22 and extends out of or retracts into the middle support pipe 21, and the inner transmission screw rod 24 can extend out of or retract into a telescopic cavity of the outer transmission screw rod 22. Further, the bottom of the lower support tube 23 is fixedly connected to the support base 3, for example, the bottom of the lower support tube 23 is provided with a connecting seat 20, the support base 3 is connected to a second bolt 29, and the second bolt 29 is screwed on the connecting seat 20.
A lower telescopic guide seat 25 is fixedly arranged on the top of the lower support tube 23, a plurality of lower guide grooves extending from top to bottom are formed in the inner wall of the middle support tube 21, a plurality of lower guide blocks 251 are arranged on the outer wall of the lower telescopic guide seat 25, and the lower guide blocks 251 are in sliding fit in the lower guide grooves, so that the lower support tube 23 can only move up and down relative to the middle support tube 21 and can not rotate relative to the middle support tube 21, and the telescopic reliability of the lower support tube 23 relative to the middle support tube 21 is ensured; a lower transmission screw hole is formed in the middle of the lower telescopic guide seat 25, and the outer transmission screw rod 22 is in threaded fit with the lower transmission screw hole, so that the lower support tube 23 can be driven to move in a telescopic manner along the guide direction of the lower guide groove when the outer transmission screw rod 22 rotates;
an upper telescopic guide seat 26 is mounted at the top of the middle support tube 21, a rotary mounting cavity and an upper transmission screw hole positioned above the rotary mounting cavity are arranged in the middle of the upper telescopic guide seat 26 in a penetrating manner, a rotary bearing 27 installed in the rotary mounting cavity in a matched manner is fixedly arranged at the upper end of the outer transmission screw rod 22, the outer transmission screw rod 22 is rotatably installed in the middle support tube 21 under the action of the rotary bearing 27 and cannot axially move along the middle support tube 21 under the limitation of the rotary bearing 27, and therefore when the outer transmission screw rod 22 rotates, the lower support tube 23 can be driven to telescopically move along the guide direction of the lower guide groove;
the top of the inner transmission screw rod 24 is in transmission connection with the rotary output end of the reversing box 5, so that the reversing box 5 driven by the motor unit 7 can drive the inner transmission screw rod 24 to rotate; the lower end of the inner driving screw rod 24 is in threaded fit with the upper driving screw hole, a synchronous structure which enables the inner driving screw rod 24 and the outer driving screw rod 22 to synchronously rotate is arranged at the bottom of the inner driving screw rod 24, for example, an inner telescopic guide seat 28 is arranged at the bottom of the inner driving screw rod 24, a telescopic cavity into which the inner driving screw rod 24 is inserted is arranged in the middle of the outer driving screw rod 22, the synchronous structure comprises an inner guide block arranged on the inner telescopic guide seat 28 and an inner guide groove arranged on the wall of the telescopic cavity, the inner guide groove is in guide fit with the inner guide groove, so that the inner driving screw rod 24 can synchronously drive the outer driving screw rod 22 to rotate when being driven by the reversing box 5, and the outer driving screw rod 22 cannot axially move along the middle supporting pipe 21 under the limitation of the rotating bearing 27, so that the axial position of the outer driving screw rod 22 relative to the middle supporting pipe 21 does not change when the outer driving screw rod 22 rotates, and the outer driving screw rod 22 drives the supporting pipe 23 to synchronously extend or retract along with the inner driving screw rod 24, thereby achieving the purpose of synchronous extension and retraction of two ends, and retraction of the table top board 100 is driven by the sliding height of the telescopic assembly 100, and the telescopic table board 1 is changed.
For convenience of installation and processing, the lower telescopic guide 25 is composed of two lower telescopic halves, and the upper telescopic guide 26 is composed of two upper telescopic halves, which can be referred to chinese patent No. CN 215899094U. In addition, the inner transmission screw 24 is sleeved with a buffering rubber ring 20, and the buffering rubber ring 20 is located between the upper telescopic guide seat 26 and the reversing box 5 and used for providing an elastic buffering effect and preventing the upper telescopic guide seat 26 from violently impacting the reversing box 5 when the screw telescopic assembly 2 contracts.
The above description is only the preferred embodiment of the present invention, and the technical solutions of the objects of the present invention are all within the protection scope of the present invention as long as the objects are achieved by the substantially same means.
Claims (9)
1. The utility model provides a multisection formula furniture elevating gear, includes two lifting components (100), drive unit (200), lifting components (100) include a plurality of sections sleeve pipes (1), be used for flexible movable lead screw telescopic component (2) between a plurality of sections sleeve pipes (1) of linkage, and a plurality of sections sleeve pipes (1) are from interior to outer cup jointing the setting layer upon layer, and a plurality of sections sleeve pipe (1) combination are formed with the chamber that holds that is located lifting components (100), lead screw telescopic component (2) are located and are held the intracavity, are located outermost sleeve pipe (1) bottom and are equipped with support base (3), its characterized in that: the top of the casing pipe (1) positioned at the innermost layer is provided with a mounting seat (4), and a reversing box (5) which is connected and drives the screw rod telescopic assembly (2) to stretch and retract is arranged in the mounting seat (4); the drive unit (200) comprises a transmission shaft assembly (6) and a motor unit (7) used for inputting power to the reversing box (5), the motor unit (7) is connected with the transmission shaft assembly (6) to rotate, and the left end and the right end of the transmission shaft assembly (6) are in transmission connection with the reversing box (5) on the two lifting assemblies (100) respectively.
2. A multi-section furniture riser according to claim 1, wherein: an anti-disengaging structure for preventing the inner and outer adjacent sleeves (1) from being disconnected is arranged between the inner and outer adjacent sleeves.
3. A multi-section furniture lifting device according to claim 2, wherein: anti-disengaging structure is including installing anticreep fitting piece (8) in inlayer sleeve pipe (1) outside bottom, installing anticreep locating part (9) at outer sleeve pipe (1) top, anticreep locating part (9) are used for blockking anticreep fitting piece (8).
4. A multi-section furniture riser according to claim 1, wherein: be connected with flexible coupling assembling (300) between mount pad (4) of two lifting unit (100) jointly, the scalable regulation of length of flexible coupling assembling (300).
5. A multi-section furniture lifting device according to claim 4, wherein: the telescopic connection assembly (300) comprises an intermediate connecting piece (301), two telescopic connecting pieces (302) capable of adjusting the positions of the intermediate connecting piece (301) in a sliding mode, wherein the two telescopic connecting pieces (302) are fixedly arranged on mounting seats (4) of the two lifting assemblies (100) in a bolt connection mode respectively, and a plurality of locking bolts used for fixing the telescopic connecting pieces (302) on the intermediate connecting piece (301) are arranged on the telescopic connecting pieces (302).
6. A multi-section furniture riser according to claim 1, wherein: the transmission shaft assembly (6) comprises a middle transmission rod (61), a first transmission shaft (62) and a second transmission shaft (63), a telescopic linkage cavity is arranged inside the middle transmission rod (61), the first transmission shaft (62) and the second transmission shaft (63) are respectively inserted and matched on two ends of the telescopic linkage cavity, and the cross-sectional shapes of the first transmission shaft (62), the second transmission shaft (63) and the telescopic linkage cavity are polygons; the first transmission shaft (62) and the second transmission shaft (63) are in transmission connection with the reversing boxes (5) on the two lifting assemblies (100) respectively, and the rotating output end of the motor unit (7) is in transmission connection with the first transmission shaft (62).
7. A multi-section furniture riser according to claim 6, wherein: the position of the first transmission shaft (62) or/and the second transmission shaft (63) is movably adjusted relative to the intermediate transmission shaft (61); and a position locking structure (64) used for locking the position of the first transmission shaft (62) is arranged on the intermediate transmission rod (61).
8. A multi-section furniture riser according to claim 1, wherein: the screw rod telescopic assembly (2) comprises a middle support pipe (21), an outer transmission screw rod (22), a lower support pipe (23) and an inner transmission screw rod (24);
a lower telescopic guide seat (25) is fixedly arranged on the top of the lower supporting tube (23), a lower guide groove is formed in the inner wall of the middle supporting tube (21), a lower guide block (251) is arranged on the outer wall of the lower telescopic guide seat (25), and the lower guide block (251) is in sliding fit in the lower guide groove;
a lower transmission screw hole is formed in the middle of the lower telescopic guide seat (25), the outer transmission screw rod (22) is in threaded fit with the lower transmission screw hole, and the outer transmission screw rod (22) drives the lower support tube (23) to move in a telescopic mode along the guide direction of the lower guide groove when rotating;
an upper telescopic guide seat (26) is mounted at the top of the middle supporting tube (21), a rotary mounting cavity and an upper transmission screw hole positioned above the rotary mounting cavity penetrate through the middle part of the upper telescopic guide seat (26), and a rotary bearing (27) which is installed in the rotary mounting cavity in a matched mode is fixedly arranged at the upper end of the outer transmission screw rod (22);
the top of the inner transmission screw rod (24) is in transmission connection with the rotary output end of the reversing box (5); the lower end of the inner transmission screw rod (24) is in threaded fit with the upper transmission screw hole, and the bottom of the inner transmission screw rod (24) is provided with a synchronous structure which enables the inner transmission screw rod (24) and the outer transmission screw rod (22) to synchronously rotate.
9. A multi-section furniture riser according to claim 8, wherein: the inner transmission screw rod (24) is sleeved with a buffering rubber ring (20), and the buffering rubber ring (20) is positioned between the upper telescopic guide seat (26) and the reversing box (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222689112.5U CN218451457U (en) | 2022-10-12 | 2022-10-12 | Multi-section furniture lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222689112.5U CN218451457U (en) | 2022-10-12 | 2022-10-12 | Multi-section furniture lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218451457U true CN218451457U (en) | 2023-02-07 |
Family
ID=85126351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222689112.5U Expired - Fee Related CN218451457U (en) | 2022-10-12 | 2022-10-12 | Multi-section furniture lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218451457U (en) |
-
2022
- 2022-10-12 CN CN202222689112.5U patent/CN218451457U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230207 |