Lifting supporting leg and table

Abstract

The invention relates to the technical field of furniture, in particular to a lifting supporting leg and a table, which comprise a supporting leg, an air spring, a vertical pipe, a telescopic rod and a telescopic adjusting mechanism, a sliding cavity and a telescopic cavity are arranged in the vertical pipe, the bottom of the telescopic rod is inserted into the telescopic cavity, one end of the air spring is arranged on the supporting leg or / and the vertical pipe, and the other end of the air spring is arranged on the telescopic rod. The other end of the air spring is arranged at the bottom end of the telescopic rod; the telescopic adjusting mechanism comprises a vertical push groove formed in the supporting foot, a push key arranged in the vertical push groove in a sliding mode, a sliding plate connected to the inner side face of the push key, a rotating shaft arranged at the top of the sliding cavity, a rotating piece elastically and rotationally connected to the rotating shaft and a pressing inclined block arranged on the side face of the end, away from the push key, of the sliding plate in a protruding mode. The rotating piece is bent to form a spring bolt and connected with a pressing inclined plate, the pressing inclined block is slidably connected with the pressing inclined plate, the telescopic rod is provided with a plurality of lock grooves, the sliding cavity is provided with a via hole, and the spring bolt is inserted into the corresponding lock groove. The telescopic adjustment of the telescopic rod can be conveniently realized, and the telescopic adjustment stability is good.

Description

Technical Field

[0001] The invention relates to the technical field of furniture, in particular to a lifting support leg and a table. Background Art

[0002] Lift tables are becoming more and more popular in the market due to their easy height adjustment features, and are mainly used in offices. Lift support legs are the core components of lift tables. In the prior art, the structures of lift support legs are of various types, including manual lift and electric lift. Traditional manual lift table legs mainly rely on a screw transmission mechanism; the user rotates the handle to drive the screw to rotate, and then the nut moves up and down along the screw to adjust the height of the desktop. Although this method is simple in structure and low in cost, it requires the user to invest a certain amount of physical strength, and the adjustment speed is relatively slow.

[0003] Among the existing patents, the Chinese patent document with application number 201721374103.X discloses a lifting tripod locking device for table legs, including a fixed leg and a movable leg inserted in the fixed leg, wherein the fixed leg is provided with a through hole, the through hole is threadedly connected with a latch, the latch abuts against the surface of the movable leg, and the latch is perpendicular to the movable leg. The stability of the patent document when adjusting the movable leg is poor, and the adjustment is inconvenient.

[0004] Therefore, the defects are very obvious and a solution is urgently needed. Summary of the invention

[0005] In order to solve the above technical problems, the purpose of the present invention is to provide a lifting support leg and a table.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A lifting support foot comprises a support foot, an air spring, a vertical tube mounted on the support foot, a telescopic rod telescopically slidably connected to the vertical tube, and a telescopic adjustment mechanism for locking or unlocking the telescopic rod, wherein a sliding cavity and a telescopic cavity are arranged in the vertical tube, the bottom of the telescopic rod is inserted into the telescopic cavity, the air spring is located in the telescopic cavity, one end of the air spring is mounted on the support foot or / and the vertical tube, the other end of the air spring is mounted on the bottom end of the telescopic rod, and the telescopic adjustment mechanism comprises a vertical push groove opened in the support foot, a push key slidably arranged in the vertical push groove, and a push key connected to the inner side surface of the push key and slidably arranged in the vertical push groove. A slide plate movably arranged in the sliding cavity, a rotating shaft arranged at the top of the sliding cavity, a rotating member elastically rotatably connected to the rotating shaft, and a pressure inclined block convexly arranged on the side of one end of the slide plate away from the push button; a locking tongue is bent at the top of the rotating member, a pressure inclined plate is connected to the bottom end of the rotating member, the pressure inclined block is slidably connected to the pressure inclined plate, a plurality of locking grooves are arranged on a side of the telescopic rod close to the rotating member, and the plurality of locking grooves are distributed along the height direction of the telescopic rod, a through hole is provided on the top side wall of the sliding cavity, and the locking tongue is rotated into or out of the telescopic cavity through the through hole, and the locking tongue is used to be inserted into the corresponding locking groove.

[0008] Furthermore, the slide plate is provided with a travel groove, the inner side wall of the slide cavity is protrudingly provided with a limit column, the limit column extends into the travel groove, and the inner side wall of the travel groove is slidably connected to the limit column.

[0009] Furthermore, a fixed plate is protruding from the inner wall of the sliding cavity, a movable plate is arranged on the side of the sliding plate, a compression spring is sandwiched between the fixed plate and the movable plate, and the compression spring is used to apply an upward restoring force to the sliding plate; when the compression spring is in an extended state, the lock tongue is inserted into the corresponding lock groove.

[0010] Furthermore, the slide plate is provided with an avoidance hole, which is located below the pressure inclined block, and the bottom of the pressure inclined plate is inclined and extends into the avoidance hole.

[0011] Furthermore, a pressure plate is provided at the bottom end of the rotating member, and the pressure inclined plate is connected to the rotating member via the pressure plate, and a receiving groove for receiving the pressure inclined block is formed at the connection between the pressure plate and the pressure inclined plate.

[0012] Furthermore, a spring is sandwiched between the pressure plate and the side wall of the sliding cavity; when the spring is in an extended state, the lock tongue is inserted into the corresponding lock groove.

[0013] The present invention also provides a table, comprising the above-mentioned lifting support legs, and also comprising a desktop and an angle adjustment device. The top end of the telescopic rod of the lifting support legs is connected to the desktop via the angle adjustment device. The angle adjustment device is used to adjust the inclination angle of the desktop. The angle adjustment device is a side-pull type angle adjustment device or a desktop press type angle adjustment device.

[0014] Furthermore, the edge of the tabletop is integrally injection molded with an edge banding.

[0015] Furthermore, the desktop is provided with a foldable storage desk lamp, a cup holder and / or a baffle.

[0016] Furthermore, a drawer is slidably connected to the bottom surface of the desktop.

[0017] The beneficial effects of the present invention are as follows: in normal state, the push button is located at the top end of the vertical push groove, and the lock tongue is inserted into the corresponding lock groove to lock the telescopic rod; when it is necessary to adjust the effective length of the telescopic rod extending out of the vertical pipe, a downward thrust is applied to the push button, so that the push button moves downward along the vertical push groove, and the downwardly moving push button drives the slide plate to move downward in the slide cavity, and the downwardly moving slide plate drives the pressure inclined block to slide downward on the pressure inclined plate and applies a pressing force to the pressure inclined plate, so that the pressure inclined plate rotates inwardly, and the inwardly rotating pressure inclined plate drives the rotating member to rotate, and the rotating member rotates. The rotating member drives the lock tongue to rotate downward, so that the lock tongue moves out of the lock slot to unlock the telescopic rod. At this time, when the effective length of the telescopic rod needs to be increased, an upward pulling force is applied to the telescopic rod so that the telescopic rod moves upward relative to the vertical tube. When the effective length of the telescopic rod needs to be shortened, a downward pressure is applied to the telescopic rod so that the telescopic rod moves downward relative to the vertical tube. When the telescopic rod is adjusted to the required effective length, the push button is released, and the rotating member will reset and rotate under the action of the rebound force until the lock tongue is inserted into the lock slot of the corresponding height to lock the telescopic rod. Among them, the air spring plays a role of buffer protection and improves the stability of adjusting the telescopic rod. The structural design of the present invention is ingenious, and the telescopic adjustment of the telescopic rod can be realized conveniently, and the stability of the telescopic adjustment is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the lifting support foot of the present invention.

[0019] Figure 2 for Figure 1 A partial enlarged view of the .

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the lifting support foot of the present invention.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the telescopic adjustment mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the air spring and the telescopic rod of the present invention.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of a structural form of the table of the present invention.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of another structural form of the table of the present invention.

[0025] Description of reference numerals:

[0026] 1. Support foot; 2. Air spring; 3. Vertical tube; 4. Telescopic rod; 5. Telescopic adjustment mechanism; 6. Sliding cavity; 7. Telescopic cavity; 8. Vertical push groove; 9. Push key; 10. Slide plate; 11. Rotating shaft; 12. Rotating member; 13. Pressure inclined block; 14. Lock tongue; 15. Pressure inclined plate; 16. Lock groove; 17. Through hole; 18. Travel groove; 19. Limit column; 20. Fixed plate; 21. Movable plate; 22. Compression spring; 23. Avoidance hole; 24. Pressure plate; 25. Accommodating groove; 26. Spring; 27. Desktop; 28. Angle adjustment device; 29. ​​Edge sealing; 30. Folding storage desk lamp; 31. Cup holder; 32. Baffle bar; 33. Drawer. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0028] like Figures 1 to 7 As shown, a lifting support leg provided by the present invention comprises a T-shaped support leg 1, an air spring 2, a vertical tube 3 installed in the middle of the support leg 1, a telescopic rod 4 telescopically slidably connected to the vertical tube 3, and a telescopic adjustment mechanism 5 for locking or unlocking the telescopic rod 4, a sliding cavity 6 and a telescopic cavity 7 are arranged in the vertical tube 3, the bottom of the telescopic rod 4 is inserted into the telescopic cavity 7, the air spring 2 is located in the telescopic cavity 7, one end of the air spring 2 is installed on the support leg 1 and / or the vertical tube 3, the other end of the air spring 2 is installed at the bottom end of the telescopic rod 4, the telescopic adjustment mechanism 5 comprises a vertical push groove 8 opened in the support leg 1, a push button 9 slidably arranged in the vertical push groove 8, and a push button 9 connected to the inner side surface of the push button 9 and slidably arranged A slide plate 10 in the slide cavity 6, a rotating shaft 11 arranged at the top of the slide cavity 6, a rotating member 12 elastically rotatably connected to the rotating shaft 11, and a pressure bevel block 13 protruding from the side of the end of the slide plate 10 away from the push button 9; a locking tongue 14 is bent at the top of the rotating member 12, a pressure bevel plate 15 is connected to the bottom end of the rotating member 12, the pressure bevel block 13 is slidably connected to the pressure bevel plate 15, a side surface of the telescopic rod 4 close to the rotating member 12 is provided with a plurality of locking grooves 16, and the plurality of locking grooves 16 are distributed along the height direction of the telescopic rod 4, a through hole 17 is provided on the top side wall of the slide cavity 6, the locking tongue 14 is rotated into or out of the telescopic cavity 7 via the through hole 17, and the locking tongue 14 is used to be inserted into the corresponding locking groove 16.

[0029] In normal state, the push button 9 is located at the top of the vertical push groove 8, and the lock tongue 14 is inserted into the corresponding lock groove 16 to lock the telescopic rod 4; when it is necessary to adjust the effective length of the telescopic rod 4 extending out of the vertical pipe 3, a downward thrust is applied to the push button 9, so that the push button 9 moves downward along the vertical push groove 8, and the push button 9 moving downward drives the slide plate 10 to move downward in the slide cavity 6, and the slide plate 10 moving downward drives the pressure inclined block 13 to slide downward on the pressure inclined plate 15 and applies a pressing force to the pressure inclined plate 15, so that the pressure inclined plate 15 rotates inwardly, and the inwardly rotating pressure inclined plate 15 drives the rotating member 12 to rotate, and the rotating member 12 rotates. The member 12 drives the locking tongue 14 to rotate downward, so that the locking tongue 14 moves out of the locking groove 16 to unlock the telescopic rod 4. At this time, when the effective length of the telescopic rod 4 needs to be increased, an upward pulling force is applied to the telescopic rod 4, so that the telescopic rod 4 moves upward relative to the vertical tube 3. When the effective length of the telescopic rod 4 needs to be shortened, a downward pressure is applied to the telescopic rod 4, so that the telescopic rod 4 moves downward relative to the vertical tube 3. When the telescopic rod 4 is adjusted to the required effective length, the push button 9 is released, and the rotating member 12 will reset and rotate under the action of the rebound force until the locking tongue 14 is inserted into the locking groove 16 of the corresponding height to lock the telescopic rod 4. Among them, the air spring 2 plays a role of buffer protection and improves the stability of adjusting the telescopic rod 4. The structural design of the present invention is ingenious, and the telescopic adjustment of the telescopic rod 4 can be realized conveniently, and the stability of the telescopic adjustment is good.

[0030] In this embodiment, the slide plate 10 is provided with a travel groove 18, and a limiting column 19 is convexly provided on the inner side wall of the slide cavity 6. The limiting column 19 extends into the travel groove 18, and the inner side wall of the travel groove 18 is slidably connected to the limiting column 19. In actual application, when the slide plate 10 moves, the travel groove 18 and the limiting column 19 move relative to each other, and the limiting column 19 cooperates with the travel groove 18 to limit the movement stroke of the slide plate 10, thereby improving the working stability of the slide plate 10.

[0031] In this embodiment, a fixed plate 20 is convexly provided on the inner side wall of the sliding cavity 6, and a movable plate 21 is provided on the side of the slide plate 10. A compression spring 22 is sandwiched between the fixed plate 20 and the movable plate 21, and the compression spring 22 is used to apply an upward restoring force to the slide plate 10; when the compression spring 22 is in an extended state, the lock tongue 14 is inserted into the corresponding lock groove 16. When the pressure inclined block 13 moves downward and applies a pressing force to the pressure inclined plate 15, the pressure inclined plate 15 drives the pressure plate 24 to rotate inward and compress the compression spring 22, so that the rotating member 12 rotates and drives the lock tongue 14 to move out of the lock groove 16 to unlock the telescopic rod 4.

[0032] In this embodiment, the slide plate 10 is provided with an escape hole 23, which is located below the pressure inclined block 13, and the bottom of the pressure inclined plate 15 is inclined to extend into the escape hole 23. The escape hole 23 provides an escape space for the rotation of the pressure inclined plate 15, which is conducive to the return rotation of the rotating member 12 under the action of the rebound force.

[0033] In this embodiment, a spring 26 is sandwiched between the pressure plate 24 and the side wall of the sliding cavity 6; when the spring 26 is in an extended state, the lock tongue 14 is inserted into the corresponding lock groove 16. In actual application, when the telescopic adjustment mechanism 5 locks the telescopic rod 4, the spring 26 extends and applies a force to the pressure plate 24, so that the lock tongue 14 remains inserted into the lock groove 16 of the corresponding height. At this time, the pressure inclined block 13 is accommodated in the accommodating groove 25, and the compression spring 22 is in an extended state.

[0034] In this embodiment, a pressure plate 24 is provided at the bottom end of the rotating member 12 , and the pressure inclined plate 15 is connected to the rotating member 12 via the pressure plate 24 . A receiving groove 25 for receiving the pressure inclined block 13 is formed at the connection between the pressure plate 24 and the pressure inclined plate 15 .

[0035] When the pressure bevel block 13 moves into the accommodating groove 25, the top wall of the accommodating groove 25 abuts against the pressure bevel block 13 to limit the pressure bevel block 13, and the pressure bevel block 13 abuts against the pressure bevel plate 15, the lock tongue 14 is inserted into the lock groove 16 to lock the telescopic rod 4, the rotating member 12 and the slide plate 10 are in a normal state, the push button 9 is located at the top position of the vertical push groove 8, and the bottom of the pressure bevel plate 15 is tilted and extends into the avoidance hole 23. When a downward thrust is applied to the push button 9, the push button 9 moves downward along the vertical push groove 8, and the downwardly moving push button 9 drives the slide plate 10 to move downward along the slide cavity 6, and the downwardly moving slide plate 10 drives the pressure inclined block 13 to move downward and compress the compression spring 22, and the downwardly moving pressure inclined block 13 slides with the pressure inclined plate 15, and the pressure inclined block 13 applies a pressing force to the pressure inclined plate 15, so that the pressure inclined plate 15 rotates inwardly and drives the pressure plate 24 to compress the spring 26, and the rotating member 12 rotates, and the locking tongue 14 of the rotating rotating member 12 is pulled out of the locking groove 16, at this time, the effective length of the telescopic rod 4 extending out of the vertical pipe 3 can be adjusted, thereby adjusting the effective height of the lifting support foot, after the telescopic adjustment of the telescopic rod 4 is completed, only the push button 9 needs to be released, and the slide plate 10 and the rotating member 12 will be reset under the action of the rebound force of the compression spring 22 and the spring 26 respectively, until the locking tongue 14 is inserted into the corresponding locking groove 16 to re-lock the telescopic rod 4.

[0036] The present invention also provides a table, including the two lifting support legs mentioned above, and also including a desktop 27 and an angle adjustment device 28. The top end of the telescopic rod 4 of the lifting support leg is connected to the desktop 27 via the angle adjustment device 28. The angle adjustment device 28 is used to adjust the inclination angle of the desktop 27. The angle adjustment device 28 is a side-pull-type angle adjustment device or a desktop press-type angle adjustment device. Both the side-pull-type angle adjustment device and the desktop press-type angle adjustment device can adopt the corresponding angle adjustment mechanism in the prior art, which will not be repeated here. In actual applications, the inclination angle of the desktop 27 can be adjusted by the angle adjustment device 28 according to actual use requirements.

[0037] In this embodiment, the edge of the table top 27 is integrally molded with an edge band 29. The edge band 29 is provided to make the table beautiful on the one hand, and to wrap the sharp corners of the table top 27 for protection on the other hand.

[0038] In this embodiment, the desktop 27 is provided with a folding storage desk lamp 30, a cup holder 31 and / or a stop bar 32. The folding storage desk lamp 30 can be folded or unfolded for use, and is convenient to use; the cup holder 31 is used to prevent water cups, etc.; the stop bar 32 is used to block objects on the desktop 27 to prevent the objects from sliding off the desktop 27.

[0039] In this embodiment, a drawer 33 is slidably connected to the bottom surface of the desktop 27. The drawer 33 is used to store items, thereby increasing the storage capacity of the table.

[0040] All technical features in this embodiment can be freely combined according to actual needs.

[0041] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A lifting support foot, characterized in that: The invention comprises a support foot (1), an air spring (2), a vertical tube (3) mounted on the support foot (1), a telescopic rod (4) telescopically slidably connected to the vertical tube (3), and a telescopic adjustment mechanism (5) for locking or unlocking the telescopic rod (4); a sliding cavity (6) and a telescopic cavity (7) are arranged in the vertical tube (3); the bottom of the telescopic rod (4) is inserted into the telescopic cavity (7); the air spring (2) is located in the telescopic cavity (7); one end of the air spring (2) is mounted on the support foot (1) or / and the vertical tube (3); the other end of the air spring (2) is mounted on the bottom end of the telescopic rod (4); the telescopic adjustment mechanism (5) comprises a vertical push groove (8) opened in the support foot (1), a push button (9) slidably arranged in the vertical push groove (8), a slide plate (10) connected to the inner side of the push button (9) and slidably arranged in the sliding cavity (6); ), a rotating shaft (11) arranged at the top of the sliding cavity (6), a rotating member (12) elastically rotatably connected to the rotating shaft (11), and a pressure inclined block (13) protruding from the side of one end of the sliding plate (10) away from the push button (9); a locking tongue (14) is bent at the top of the rotating member (12), a pressure inclined plate (15) is connected to the bottom end of the rotating member (12), the pressure inclined block (13) is slidably connected to the pressure inclined plate (15), a plurality of locking grooves (16) are arranged on a side of the telescopic rod (4) close to the rotating member (12), and the plurality of locking grooves (16) are distributed along the height direction of the telescopic rod (4), a through hole (17) is provided on the top side wall of the sliding cavity (6), the locking tongue (14) is rotated into or out of the telescopic cavity (7) through the through hole (17), and the locking tongue (14) is used to be inserted into the corresponding locking groove (16).

2. A lifting support foot according to claim 1, characterized in that: The slide plate (10) is provided with a travel groove (18), the inner side wall of the slide cavity (6) is provided with a limit column (19), the limit column (19) extends into the travel groove (18), and the inner side wall of the travel groove (18) is slidably connected with the limit column (19).

3. The lifting support foot according to claim 1, characterized in that: A fixed plate (20) is convexly provided on the inner side wall of the sliding cavity (6), a movable plate (21) is provided on the side of the sliding plate (10), a compression spring (22) is sandwiched between the fixed plate (20) and the movable plate (21), and the compression spring (22) is used to apply an upward restoring force to the sliding plate (10); when the compression spring (22) is in an extended state, the lock tongue (14) is inserted into the corresponding lock groove (16).

4. The lifting support foot according to claim 1, characterized in that: The slide plate (10) is provided with an avoidance hole (23), which is located below the pressure inclined block (13), and the bottom of the pressure inclined plate (15) is inclined to extend into the avoidance hole (23).

5. The lifting support foot according to claim 1, characterized in that: A pressing plate (24) is provided at the bottom end of the rotating member (12), and the pressure inclined plate (15) is connected to the rotating member (12) via the pressing plate (24). A receiving groove (25) for receiving the pressure inclined block (13) is formed at the connection between the pressing plate (24) and the pressure inclined plate (15).

6. The lifting support foot according to claim 5, characterized in that: A spring (26) is sandwiched between the pressure plate (24) and the side wall of the sliding cavity (6); when the spring (26) is in an extended state, the lock tongue (14) is inserted into the corresponding lock groove (16).

7. A table, characterized in that: It comprises a lifting support foot as described in any one of claims 1 to 6, and also comprises a table top (27) and an angle adjustment device (28), wherein the top end of the telescopic rod (4) of the lifting support foot is connected to the table top (27) via the angle adjustment device (28), and the angle adjustment device (28) is used to adjust the inclination angle of the table top (27).

8. A table according to claim 7, characterized in that: The edge of the tabletop (27) is integrally injection-molded with an edge seal (29).

9. A table according to claim 7, characterized in that: The desktop (27) is provided with a foldable storage desk lamp (30), a cup holder (31) and / or a stop bar (32).

10. A table according to claim 7, characterized in that: The bottom surface of the desktop (27) is slidably connected with a drawer (33).

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