Lifting supporting leg and table

Abstract

The utility model 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 utility model relates to the technical field of furniture, in particular to a lifting support leg and a table. Background Art

[0002] Lift-and-slide tables are increasingly popular in the market due to their ease of height adjustment, primarily used in offices. Lift-and-slide support legs are a core component of lift-and-slide tables. Prior art lift-and-slide support legs come in a variety of configurations, including manual and electric lifts. Traditional manual lift-and-slide table legs rely primarily on a screw drive mechanism; users rotate a handle, which in turn moves a nut up and down along the screw, adjusting the height of the tabletop. While this method is simple and inexpensive, it requires a certain amount of user effort and is relatively slow to adjust.

[0003] Among existing patents, Chinese patent application number 201721374103.X discloses a locking device for a table leg lift stand, comprising a fixed leg and a movable leg inserted into the fixed leg. The fixed leg has a through hole threaded with a latch that abuts against the surface of the movable leg and is perpendicular to the movable leg. This patent document suffers from poor stability when adjusting the movable leg, making adjustment inconvenient.

[0004] Therefore, the defects are very obvious and a solution is urgently needed. Utility Model Content

[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 purpose, the utility model adopts the following technical solutions:

[0007] A lifting support leg comprises a support leg, an air spring, a vertical tube mounted on the support leg, 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 provided 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 leg and / or the vertical tube, and 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 provided on the support leg, a push button slidably arranged in the vertical push groove, and a push button connected to the inner side of the push button and slidably arranged in the vertical push groove. A slide is movably arranged in the sliding cavity, a rotating shaft is arranged at the top of the sliding cavity, a rotating member rotatably connected to the rotating shaft, and a pressure inclined block is protruded on the side of the end of the slide away from the push button; the top of the rotating member is bent to form a lock tongue, the bottom end of the rotating member is connected to the pressure inclined plate, the pressure inclined block is slidably connected to the pressure inclined plate, a plurality of lock grooves are provided on a side of the telescopic rod close to the rotating member, and the plurality of lock 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 lock tongue is rotated into or out of the telescopic cavity through the through hole, and the lock tongue is used to be inserted into the corresponding lock groove.

[0008] Furthermore, the slide plate is provided with a travel groove, the inner side wall of the slide cavity is protruded 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 provided on the side of the slide, and a compression spring is sandwiched between the fixed plate and the movable plate. The compression spring is used to apply an upward reset force to the slide; 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 utility model also provides a table, including the above-mentioned lifting support legs, a table top and an angle adjustment device, the top end of the telescopic rod of the lifting support legs is connected to the table top via the angle adjustment device, the angle adjustment device is used to adjust the inclination angle of the table top, and the angle adjustment device is a side-pull-type angle adjustment device or a table top press-type angle adjustment device.

[0014] Furthermore, the edge of the table top 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 utility model 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 tube, 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 inward, and the inwardly rotating pressure inclined plate drives the rotating member to rotate, and the rotating member rotates. The movable rotating member drives the lock tongue to rotate downward, causing the lock tongue to move out of the lock slot to unlock the telescopic rod. At this time, when it is necessary to increase the effective length of the telescopic rod, an upward pulling force is applied to the telescopic rod, causing the telescopic rod to move upward relative to the vertical tube. When it is necessary to shorten the effective length of the telescopic rod, a downward pressure is applied to the telescopic rod, causing the telescopic rod to move downward relative to the vertical tube. When the telescopic rod is adjusted to the desired 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, thereby locking the telescopic rod. Among them, the air spring plays a buffering and protective role, improving the stability of adjusting the telescopic rod. The structural design of the utility model is ingenious, and can conveniently realize the telescopic adjustment of the telescopic rod, and the telescopic adjustment is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the lifting support foot of the utility model.

[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 utility model.

[0021] Figure 4 It is a three-dimensional structural diagram of the telescopic adjustment mechanism of the utility model.

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

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

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

[0025] Description of reference numerals:

[0026] 1. Support leg; 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 button; 10. Slide plate; 11. Rotating shaft; 12. Rotating part; 13. Pressure ramp; 14. Lock tongue; 15. Pressure ramp; 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. Accommodation groove; 26. Spring; 27. Tabletop; 28. Angle adjustment device; 29. Edge sealing; 30. Folding storage desk lamp; 31. Cup holder; 32. Baffle; 33. Drawer. DETAILED DESCRIPTION

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

[0028] like Figures 1 to 7 As shown, the utility model provides a lifting support foot, including a T-shaped support foot 1, an air spring 2, a vertical tube 3 installed in the middle of 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 provided 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 foot 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 includes a vertical push groove 8 opened in the support foot 1, a push button 9 slidably set in the vertical push groove 8, and a push button 9 connected to the inner side of the push button 9 and slidably set A slide 10 is placed in the sliding cavity 6, a rotating shaft 11 is set at the top of the sliding cavity 6, a rotating member 12 elastically connected to the rotating shaft 11 and a pressure bevel 13 protruding from the side of the end of the slide 10 away from the push button 9; the top of the rotating member 12 is bent to form a lock tongue 14, the bottom end of the rotating member 12 is connected to a pressure bevel 15, the pressure bevel 13 is slidably connected to the pressure bevel 15, a side of the telescopic rod 4 close to the rotating member 12 is provided with a plurality of lock grooves 16, and the plurality of lock grooves 16 are distributed along the height direction of the telescopic rod 4, and a through hole 17 is opened on the top side wall of the sliding cavity 6, and the lock tongue 14 is rotated into or out of the telescopic cavity 7 through the through hole 17, and the lock tongue 14 is used to be inserted into the corresponding lock 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 tube 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 downwardly moving push button 9 drives the slide plate 10 to move downward in the slide cavity 6, and the downwardly moving slide plate 10 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 inward, and the inwardly rotating pressure inclined plate 15 drives the rotating member 12 to rotate, and the rotating member 12 rotates. Component 12 drives the locking tongue 14 to rotate downward, causing the locking tongue 14 to move 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, causing the telescopic rod 4 to move 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, causing the telescopic rod 4 to move downward relative to the vertical tube 3. When the telescopic rod 4 is adjusted to the desired effective length, the push button 9 is released, and the rotating component 12 will return to its original position under the action of the rebound force until the locking tongue 14 is inserted into the locking groove 16 at the corresponding height, thereby locking the telescopic rod 4. The air spring 2 acts as a buffer and protects, improving the stability of adjusting the telescopic rod 4. The structural design of the present utility model is ingenious, and can conveniently achieve the telescopic adjustment of the telescopic rod 4 with good telescopic adjustment stability.

[0030] In this embodiment, the slide 10 defines a travel groove 18. A limiting post 19 is protruding from the inner sidewall of the slide cavity 6. The limiting post 19 extends into the travel groove 18. The inner sidewall of the travel groove 18 is slidably connected to the limiting post 19. In actual use, when the slide 10 moves, the travel groove 18 and the limiting post 19 move relative to each other. The limiting post 19 cooperates with the travel groove 18 to limit the travel range of the slide 10, thereby improving the operating stability of the slide 10.

[0031] In this embodiment, a fixed plate 20 is protruding from the inner sidewall of the sliding cavity 6, and a movable plate 21 is provided on the side of the slide 10. A compression spring 22 is sandwiched between the fixed plate 20 and the movable plate 21. The compression spring 22 is used to apply an upward return force to the slide 10. When the compression spring 22 is in an extended state, the lock tongue 14 is inserted into the corresponding lock slot 16. When the pressure-applying ramp 13 moves downward and applies pressure to the pressure-applying ramp 15, the pressure-applying ramp 15 drives the pressure plate 24 to rotate inward and compress the compression spring 22, causing the rotating member 12 to rotate and drive the lock tongue 14 out of the lock slot 16, thereby unlocking the telescopic rod 4.

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

[0033] In this embodiment, a spring 26 is interposed between the pressure plate 24 and the sidewall of the sliding cavity 6; when the spring 26 is extended, the locking tongue 14 is inserted into the corresponding locking groove 16. In actual use, when the telescopic adjustment mechanism 5 locks the telescopic rod 4, the spring 26 extends and applies a force to the pressure plate 24, keeping the locking tongue 14 inserted into the locking groove 16 at the corresponding height. At this time, the pressure-applying ramp 13 is accommodated in the receiving groove 25, and the compression spring 22 is extended.

[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 . The connection between the pressure plate 24 and the pressure inclined plate 15 forms a receiving groove 25 for receiving the pressure inclined block 13 .

[0035] When the pressure bevel 13 moves into the accommodating groove 25, the top wall of the accommodating groove 25 contacts the pressure bevel 13 to limit the pressure bevel 13, and the pressure bevel 13 contacts 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 the 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 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. 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 inward and drives the pressure plate 24 to compress the spring 26, the rotating member 12 rotates, and the locking tongue 14 of the rotating rotating member 12 is pulled out from the locking groove 16. At this time, the effective length of the telescopic rod 4 extending out of the vertical tube 3 can be adjusted, thereby adjusting the effective height of the lifting support foot. After the telescopic rod 4 is telescopically adjusted, just release the push button 9, 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 comprising the two aforementioned lifting support legs, a table top 27, and an angle adjustment device 28. The top end of the telescopic rod 4 of the lifting support legs is connected to the table top 27 via the angle adjustment device 28. The angle adjustment device 28 is used to adjust the inclination angle of the table top 27. The angle adjustment device 28 is a side-pull-type angle adjustment device or a table top press-type angle adjustment device. Both the side-pull-type angle adjustment device and the table top press-type angle adjustment device can adopt corresponding angle adjustment mechanisms in the prior art, which will not be described in detail here. In actual application, the inclination angle of the table top 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 injection-molded with an edge banding 29. The setting of the edge banding 29 is to make the table beautiful on the one hand, and to wrap the sharp corners of the table top 27 to play a protective role on the other hand.

[0038] In this embodiment, the desktop 27 is provided with a foldable storage lamp 30, a cup holder 31, and / or a stop bar 32. The foldable storage lamp 30 can be folded or unfolded for easy use; the cup holder 31 is used to prevent cups and the like from falling; and the stop bar 32 is used to block items on the desktop 27 and prevent them from sliding off.

[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 can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A lifting support leg, characterized by: The invention comprises a support leg (1), an air spring (2), a vertical tube (3) mounted on 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 provided 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 leg (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) provided on the support leg (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 slide plate (10) away from the push button (9); the top of the rotating member (12) is bent to form a lock tongue (14), the bottom end of the rotating member (12) is connected to a pressure inclined plate (15), the pressure inclined block (13) is slidably connected to the pressure inclined plate (15), a plurality of locking grooves (16) are provided 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 lock tongue (14) is rotated into or out of the telescopic cavity (7) through the through hole (17), and the lock tongue (14) is used to be inserted into the corresponding lock groove (16).

2. The lifting support leg 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 limiting column (19), 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).

3. The lifting support leg 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 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).

4. The lifting support leg 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 leg according to claim 1, characterized in that: 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).

6. The lifting support leg 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 the 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), 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 desktop (27) is integrally injection-molded with an edge seal (29).

9. The 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 blocking bar (32).

10. The 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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