Lifting table leg and lifting table

Abstract

The utility model belongs to the technical field of lifting tables, and particularly relates to a lifting table leg and a lifting table, the lifting table leg comprises a fixing frame, the fixing frame comprises a pair of fixing columns, and nuts are arranged in the fixing columns; the movable frame comprises a movable beam and a pair of movable columns connected to the bottom of the movable beam, the movable columns are arranged on the outer sides of the fixed columns in a sleeving mode, screw rod pieces are arranged in the movable columns, and the screw rod pieces are in threaded connection with the nut pieces; the driving mechanism comprises a driving motor, the driving motor is installed at the bottom of the movable beam, a driving shaft is connected to the output end of the driving motor in an inserted mode, and the driving shaft is connected with the screw rod piece through a reversing assembly so as to drive the screw rod piece to rotate and drive the movable column to ascend and descend vertically; the two pairs of fixed columns and the two pairs of movable columns are combined into a whole to form the table legs, the table legs do not need to be installed one by one during use, and only the table legs which form the whole need to be installed at the bottom of the table top.

Description

Technical Field

[0001] This utility model belongs to the field of height-adjustable desk technology, specifically relating to a height-adjustable desk leg and a height-adjustable desk. Background Technology

[0002] A height-adjustable desk is a type of office desk that can be adjusted according to a person's height, sitting posture, and standing posture. It generally includes electric height-adjustable desks and manual height-adjustable desks. Existing electric height-adjustable desks usually consist of a desktop, several legs, and a drive mechanism. The legs are installed one by one at the bottom of the desktop, and then the drive mechanism is installed at the bottom of the desktop. The torque is transmitted to the legs through the drive shaft to complete the raising and lowering of the desktop. However, the separate design of the legs and the drive mechanism results in a large number of components, making the installation complicated for users.

[0003] Therefore, how to avoid the problem of poor matching of the drive shaft caused by the separate installation of the table legs and the drive mechanism is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] The purpose of this utility model is to provide a height-adjustable table leg and a height-adjustable table.

[0005] To solve the above-mentioned technical problems, this utility model provides a height-adjustable table leg, comprising: a fixed frame including a pair of fixed columns, wherein a nut is disposed inside the fixed columns; a movable frame including a movable beam and a pair of movable columns connected to the bottom of the movable beam, wherein the movable columns are sleeved on the outside of the fixed columns, and a screw is disposed inside the movable columns, wherein the screw is threadedly connected to the nut; and a drive mechanism including a drive motor, wherein the drive motor is installed at the bottom of the movable beam, and a drive shaft is inserted into the output end of the drive motor, wherein the drive shaft is connected to the screw via a reversing assembly to drive the screw to rotate, thereby causing the movable columns to move up and down.

[0006] Preferably, the movable beam is an "L"-shaped profile, the vertical surface of the movable beam is connected to the side wall of the movable column by bolts, the horizontal surface of the movable beam is attached to the top of the movable column, and the drive motor is installed at the bottom of the horizontal surface of the movable beam.

[0007] Preferably, the drive mechanism further includes a drive housing that covers each other, a drive motor inserted into the drive housing, a drive worm gear rotatably disposed within the drive housing, a drive shaft inserted into the axis of the drive worm gear, a drive worm inserted into the output shaft of the drive motor, and the drive worm meshing with the drive worm gear to drive the drive shaft to rotate.

[0008] Preferably, the reversing assembly includes a reversing housing, which is bolted to the movable column. The reversing housing contains a meshing bevel gear pair, and both ends of the drive shaft are respectively connected to the input end of the bevel gear pair. The screw is connected to the output end of the bevel gear pair.

[0009] Preferably, the inner wall of the fixing column is provided with a plurality of mounting openings, the mounting openings being arranged around the axis of the fixing column, and the mounting openings being adapted to hold nuts.

[0010] Preferably, the inner wall of the movable column has a limiting opening, the bottom of the movable column is fitted with a limiting ring, the top of the limiting ring is provided with a limiting block, the limiting block is inserted into the limiting opening, and the inner wall of the limiting ring is fitted to fix the column.

[0011] Preferably, the fixing frame further includes a fixing beam, the fixing column is bolted to the top of the fixing beam, and the bottom of the fixing beam is provided with fixing feet.

[0012] This utility model also provides a height-adjustable table, including: a support member, which includes several support beams; a splicing tabletop; and the aforementioned height-adjustable table legs. The splicing tabletop is bolted to the top of the movable beams, and the support beams are respectively connected to the side walls of the movable columns on the same side, with the top of the support beams fitting against the splicing tabletop.

[0013] Preferably, a reinforcing strip is provided between the supporting beam and the fixed column, and the reinforcing strip, the supporting beam and the fixed column form a triangle.

[0014] The beneficial effects of this utility model are:

[0015] The two pairs of fixed columns and two pairs of movable columns are combined into a whole to form the table legs. When in use, there is no need to install the table legs one by one. Only the table legs that form a whole need to be installed at the bottom of the tabletop. A movable beam is set at the top of the movable column to support the tabletop. The drive mechanism is installed at the bottom of the movable beam. The torque is transmitted to the screw component through the drive shaft. The lifting and lowering of the movable column is realized through the threaded connection between the screw component and the nut component.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a perspective view of a preferred embodiment of the height-adjustable table of this utility model;

[0020] Figure 2 This is a perspective view of a preferred embodiment of the height-adjustable table of this utility model;

[0021] Figure 3 This is a perspective view of a preferred embodiment of the height-adjustable table legs of this utility model;

[0022] Figure 4 This is a cross-sectional view of a preferred embodiment of the height-adjustable table legs of this utility model;

[0023] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0024] In the picture:

[0025] 1. Fixing frame; 11. Fixing column; 12. Mounting port; 13. Fixing beam; 14. Fixing leg;

[0026] 2. Movable frame; 21. Movable beam; 22. Movable column; 23. Screw rod; 24. Limiting port; 25. Limiting ring; 25a. Limiting block;

[0027] 3. Drive mechanism; 31. Drive motor; 32. Drive shaft; 33. Drive housing; 34. Drive worm gear; 35. Drive worm;

[0028] 4. Commutating assembly; 41. Commutating housing; 42. Bevel gear pair;

[0029] 5. Support beam; 51. Reinforcing strip;

[0030] 6. Create a desktop panel. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] like Figures 1 to 5 As shown, at least one embodiment provides a height-adjustable table leg, comprising: a fixed frame 1, which includes a pair of fixed columns 11, each fixed column 11 having a nut; a movable frame 2, which includes a movable beam 21 and a pair of movable columns 22 connected to the bottom of the movable beam 21, the movable columns 22 being sleeved on the outside of the fixed columns 11, each movable column 22 having a screw 23 inside, the screw 23 being threadedly connected to the nut; and a drive mechanism 3, which includes a drive motor 31, the drive motor 31 being mounted on the bottom of the movable beam 21, the output end of the drive motor 31 being inserted into a drive shaft 32. The movable shaft 32 is connected to the screw rod 23 via the reversing assembly 4 to drive the screw rod 23 to rotate, thereby causing the movable column 22 to move up and down. In short, the two pairs of fixed columns 11 and the two pairs of movable columns 22 are combined into a whole to form a table leg. In use, it is not necessary to install the table legs one by one; it is only necessary to install the table leg as a whole at the bottom of the tabletop. A movable beam 21 is set at the top of the movable column 22 to support the tabletop. The drive mechanism 3 is installed at the bottom of the movable beam 21. The torque is transmitted to the screw rod 23 through the drive shaft 32. The movable column 22 is raised and lowered through the threaded connection between the screw rod 23 and the nut.

[0033] In some embodiments, the movable beam 21 is an "L"-shaped profile. The vertical surface of the movable beam 21 is bolted to the side wall of the movable column 22, the horizontal surface of the movable beam 21 is attached to the top of the movable column 22, and the drive motor 31 is installed at the bottom of the horizontal surface of the movable beam 21. In short, the movable beam 21 is designed as an "L"-shaped profile, which firstly improves the strength of the movable beam 21 and prevents it from bending under stress. Secondly, the horizontal surface of the movable beam 21 can be used to install the drive motor 31 and the supporting surface, resulting in a simple and reliable structure.

[0034] In some embodiments, the drive mechanism 3 further includes a drive housing 33 that covers each other, a drive motor 31 inserted into the drive housing 33, a drive worm gear 34 rotatably disposed within the drive housing 33, a drive shaft 32 inserted into the axis of the drive worm gear, and a drive worm 35 inserted into the output shaft of the drive motor 31. The drive worm 35 meshes with the drive worm gear to drive the drive shaft 32 to rotate. In short, the drive housing 33 that covers each other can install the drive worm gear and the drive motor 31. The drive worm 35 that meshes with the drive worm gear is sleeved on the output shaft of the drive motor 31, which can transmit torque to the drive worm gear and finally to the drive shaft 32 to drive the screw component 23 to rotate. Furthermore, the drive worm gear and the drive worm 35 can only transmit in one direction to prevent the movable frame 2 from sliding downwards when subjected to the weight of the table.

[0035] In some embodiments, the reversing assembly 4 includes a reversing housing 41, which is bolted to the movable column 22. The reversing housing 41 contains a meshing bevel gear pair 42, and both ends of the drive shaft 32 are connected to the input ends of the bevel gear pair 42. The screw member 23 is connected to the output end of the bevel gear pair 42. In short, the bevel gear pair 42 enables torque reversal, transmitting the lateral torque of the drive shaft 32 to the vertically arranged screw member 23, thus driving the screw member 23 and achieving the lifting and lowering of the movable frame 2.

[0036] In some embodiments, the inner wall of the fixing column 11 is provided with a plurality of mounting openings 12, the mounting openings 12 being arranged around the axis of the fixing column 11, and the mounting openings 12 being adapted to hold nuts; in short, the provision of mounting openings 12 facilitates the holding of nuts.

[0037] In some embodiments, a limiting opening 24 is provided on the inner wall of the movable column 22, a limiting ring 25 is sleeved on the bottom of the movable column 22, a limiting block 25a is provided on the top of the limiting ring 25, the limiting block 25a is inserted into the limiting opening 24, and the inner wall of the limiting ring 25 is attached to the fixed column 11; in short, the limiting ring 25 is installed at the bottom of the movable column 22 through the insertion of the limiting block 25a into the limiting opening 24, and the inner wall of the limiting ring 25 is attached to the fixed column 11, which prevents the movable column 22 from shaking when it is raised and lowered, and improves the stability of the lifting table leg.

[0038] In some embodiments, the fixing frame 1 further includes a fixing beam 13, the fixing column 11 is bolted to the top of the fixing beam 13, and the bottom of the fixing beam 13 is provided with a fixing leg 14; in short, the fixing leg 14 is installed at the bottom of the fixing beam 13, which enables the lifting table leg to be stably placed on the bottom surface.

[0039] At least one embodiment also provides a height-adjustable table, comprising: a support member including a plurality of support beams 5; a splicing tabletop 6; and the aforementioned height-adjustable table legs, wherein the splicing tabletop 6 is bolted to the top of the movable beam 21, the support beams 5 are respectively connected to the side walls of the movable column 22 on the same side, and the top of the support beams 5 is in contact with the splicing tabletop 6; in short, the height-adjustable table legs, as a whole, respectively support the short edges of the splicing tabletop 6, thereby simplifying the installation of the height-adjustable table.

[0040] In some embodiments, a reinforcing strip 51 is provided between the supporting beam 5 and the fixed column 11, and the reinforcing strip 51, the supporting beam 5 and the fixed column 11 form a triangle; in short, the reinforcing strip 51 provided between the supporting beam 5 and the fixed column 11 can prevent the angle between the supporting beam 5 and the fixed column 11 from changing, thereby improving the stability of the lifting table.

[0041] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A height-adjustable table leg, characterized in that, include: The fixing frame (1) includes a pair of fixing posts (11), and a nut is provided inside the fixing posts (11); The movable frame (2) includes a movable beam (21) and a pair of movable columns (22) connected to the bottom of the movable beam (21). The movable columns (22) are sleeved on the outside of the fixed column (11). A screw (23) is provided inside the movable column (22). The screw (23) is threadedly connected to the nut. The drive mechanism (3) includes a drive motor (31), which is installed at the bottom of the movable beam (21). The output end of the drive motor (31) is connected to a drive shaft (32). The drive shaft (32) is connected to the screw (23) through a reversing assembly (4) to drive the screw (23) to rotate and drive the movable column (22) to move up and down. The inner wall of the movable column (22) has a limiting opening (24), the bottom of the movable column (22) is fitted with a limiting ring (25), the top of the limiting ring (25) is provided with a limiting block (25a), and the limiting block (25a) is inserted into the limiting opening (24). The inner wall of the limiting ring (25) is fitted with the fixing post (11).

2. The height-adjustable table legs as described in claim 1, characterized in that, The movable beam (21) is an "L"-shaped profile. The vertical surface of the movable beam (21) is bolted to the side wall of the movable column (22). The horizontal surface of the movable beam (21) is attached to the top of the movable column (22). The drive motor (31) is installed at the bottom of the transverse surface of the movable beam (21).

3. The height-adjustable table legs as described in claim 1, characterized in that, The drive mechanism (3) further includes a drive housing (33) that covers each other, and the drive motor (31) is inserted into the drive housing (33). A drive worm gear (34) is rotatably disposed inside the drive housing (33). The drive shaft (32) is inserted into the axis of the drive worm gear. A drive worm (35) is inserted into the output shaft of the drive motor (31). The drive worm (35) meshes with the drive worm gear to drive the drive shaft (32) to rotate.

4. The height-adjustable table legs as described in claim 1, characterized in that, The reversing assembly (4) includes a reversing housing (41), which is bolted to the movable column (22). The reversing housing (41) contains a meshing bevel gear pair (42). The two ends of the drive shaft (32) are respectively connected to the input end of the bevel gear pair (42), and the screw (23) is connected to the output end of the bevel gear pair (42).

5. The height-adjustable table leg as described in claim 1, characterized in that, The inner wall of the fixed column (11) is provided with a plurality of mounting ports (12), the mounting ports (12) are arranged around the axis of the fixed column (11), and the mounting ports (12) are suitable for clamping nuts.

6. The height-adjustable table legs as described in claim 1, characterized in that, The fixing frame (1) also includes a fixing beam (13), the fixing column (11) is installed on the top of the fixing beam (13) by bolts, and the bottom of the fixing beam (13) is provided with a fixing leg (14).

7. A height-adjustable desk, characterized in that, include: Support components, which include several support beams (5); Splicing desktop (6), and A pair of lifting table legs as described in any one of claims 1-7, wherein the splicing tabletop (6) is bolted to the top of the movable beam (21), the supporting crossbeams (5) are respectively connected to the side wall of the movable column (22) on the same side, and the top of the supporting crossbeams (5) is in contact with the splicing tabletop (6).

8. The height-adjustable desk as described in claim 7, characterized in that, A reinforcing strip (51) is provided between the supporting beam (5) and the fixed column (11), and the reinforcing strip (51), the supporting beam (5) and the fixed column (11) form a triangle.

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