Electric lifting table with straight stand column

Abstract

The utility model discloses a straight cylinder stand column electric lifting table which comprises a table leg assembly and a driving device, the table leg assembly is provided with the driving device, the driving device is used for enabling a stand column assembly to stretch out and draw back, the driving device is arranged in the stand column assembly, the exterior of the driving device is protected by the stand column assembly, and collision is avoided. The problem of the installation position of the driving device is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting desks, and particularly relates to a straight-column electric lifting desk. Background Art

[0002] The design concept of the lifting desk stems from in-depth research on ergonomics. The design of the lifting desk fully considers the different needs of the human body in sitting and standing postures. By adjusting the height of the desktop, it can reduce the pressure on the body during long-term work, achieving the purpose of healthy office work.

[0003] In the prior art, the lifting desk includes a lifting column and a driving device. As can be seen from the patent document previously applied by the applicant (publication number CN208403591U, patent name: an electric lifting desk), the driving device includes a driving motor, a connecting rod, and a driving controller. The driving device is arranged outside the lifting column. The placement of the driving device is usually a problem. The components of the driving device are relatively precise, and their installation positions need to be ensured not to be knocked. In the above patent document, according to the specific structure of the desk, the driving device is arranged between the telescopic crossbeams supporting the tabletop, that is, the driving device is not easily knocked, protecting the driving device, and the driving device can also be hidden under the tabletop to improve the aesthetics of the lifting desk. However, not all lifting desks have telescopic crossbeams. Therefore, this protection structure is not applicable to all lifting desks. Therefore, the present utility model proposes a straight-column electric lifting desk. Summary of the Utility Model

[0004] The purpose of the present utility model is to solve the above-mentioned technical problems existing in the prior art, and provide a straight-column electric lifting desk, in which the driving device is arranged inside the column assembly to improve the protection of the driving device.

[0005] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0006] A straight-column electric lifting desk includes a desktop assembly, a table leg assembly, and a driving device. The desktop assembly is arranged on the table leg assembly. The table leg assembly is provided with the driving device. The driving device is used to make the column assembly telescopic to adjust the height of the desktop assembly. The driving device is arranged inside the column assembly.

[0007] Further, the table leg assembly includes a threaded rod, a base tube, a first sleeve, and a second sleeve. The first sleeve is connected to the base tube, and the second sleeve is connected to the threaded rod. The first sleeve is arranged inside the second sleeve. The base tube is threadedly connected to the threaded rod or the base tube is movably provided with a rotating block, and the rotating block is threadedly connected to the threaded rod. When the threaded rod rotates through the driving device, the threaded rod slides along the axial direction of the base tube, and then the first sleeve and the second sleeve telescopic.

[0008] Further, the driving device adopts a 7-shaped reduction motor unit.

[0009] Furthermore, the second sleeve is provided with a first connection hole, and the 7-shaped reduction motor unit is provided with a second connection hole. A first connecting piece is arranged in the first connection hole and the second connection hole, so that the 7-shaped reduction motor unit is connected to the second sleeve, and further, the threaded rod is indirectly connected to the second sleeve.

[0010] Furthermore, the 7-shaped reduction motor unit includes a reduction gear box, and the reduction gear box is arranged on the top of the second sleeve.

[0011] Furthermore, the reduction motor unit further includes a motor. The output end of the motor and the input end of the threaded rod are arranged at the bottom of the reduction gear box, so that the motor and the threaded rod are arranged below the reduction gear box.

[0012] Furthermore, the first sleeve is provided with a connecting block, and the connecting block is threadedly connected to the base pipe, so that the base pipe rotates along the connecting block.

[0013] Furthermore, the connecting block is provided with a third connection hole, and the first sleeve is provided with a fourth connection hole. A second connecting piece is arranged in the third connection hole and the fourth connection hole, so that the connecting block is connected to the first sleeve.

[0014] Furthermore, the first sleeve is provided with a wear-resistant plate, and the wear-resistant plate is used to form a gap between the outer wall of the first sleeve and the inner wall of the second sleeve.

[0015] Furthermore, the first sleeve is provided with a clamping hole, and the wear-resistant block is provided with an elastic piece. The elastic piece is used to be embedded in the clamping hole, and a deformation distance is arranged between the elastic pieces. When the elastic piece is embedded in the clamping hole, the elastic piece deforms in the direction of the deformation distance, reducing the deformation distance. When the elastic piece is taken out of the clamping hole, both the elastic piece and the deformation distance return to their original states.

[0016] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects:

[0017] The present utility model includes a table leg assembly and a driving device. The table leg assembly is provided with the driving device, and the driving device is used to make the column assembly telescopic. The driving device is arranged inside the column assembly, and the driving device is protected by the column assembly on the outside, avoiding bumps and solving the problem of the installation position of the driving device.

[0018] More specifically, the driving device is arranged on the top of the column assembly, and the top of the column assembly is attached to the tabletop assembly, so that the driving device is further protected by the tabletop assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present utility model with reference to the drawings:

[0020] Figure 1 It is a schematic structural diagram (1) of the table leg assembly and the driving device in the present utility model;

[0021] Figure 2 The bottom view of the table leg assembly and the driving device in the present utility model;

[0022] Figure 3 The second structural schematic diagram of the table leg assembly and the driving device (when the second sleeve is removed) in the present utility model;

[0023] Figure 4 The third structural schematic diagram of the table leg assembly and the driving device (when the first sleeve and the second sleeve are removed) in the present utility model;

[0024] Figure 5 The structural schematic diagram of the connecting block in the present utility model;

[0025] Figure 6 The structural schematic diagram of the rotating block in the present utility model;

[0026] Figure 7 The structural schematic diagram of the wear-resistant plate in the present utility model;

[0027] Figure 8 The bottom view of the reduction gear box in the present utility model.

[0028] In the figure, 1 - second sleeve; 2 - first connecting piece; 3 - first sleeve; 4 - second connecting piece; 5 - motor; 6 - wear-resistant plate; 7 - base pipe; 8 - rotating block; 9 - reduction gear box; 10 - threaded rod; 11 - connecting block; 12 - third connection hole; 13 - thread groove; 14 - elastic piece; 15 - deformation distance; 16 - first connection hole; 17 - fourth connection hole; 18 - second connection hole. Specific embodiments

[0029] As Figures 1 to 8 shown, a straight cylinder column electric lifting table of the present utility model includes a tabletop assembly (not shown in the figure), a table leg assembly and a driving device. The tabletop assembly is arranged on the table leg assembly, and the table leg assembly is provided with a driving device. The driving device is used to make the column assembly telescopic to adjust the height of the tabletop assembly. The driving device is arranged inside the column assembly. The driving device adopts a 7-shaped reduction motor unit. The 7-shaped reduction motor unit includes a reduction gear box 9 and a motor 5. The reduction gear box is arranged on the top of the second sleeve 1. The bottom of the reduction gear box 9 is provided with the output end of the motor 5 and the input end of the threaded rod 10, so that the motor 5 and the threaded rod 10 are arranged below the reduction gear box.

[0030] The table leg assembly includes a threaded rod 10, a base tube 7, a first sleeve 3 and a second sleeve 1. The first sleeve 3 is connected to the base tube 7, and the second sleeve 1 is connected to the threaded rod 10. The first sleeve 3 is disposed inside the second sleeve 1. The base tube 7 is hollow inside, and its inner wall is provided with threads. A connecting block 11 is provided on the bottom surface of the first sleeve 3. The connecting block 11 is fitted inside the base tube 7 and is threadedly connected to the base tube 7. A rotating block 8 is threadedly connected inside the base tube 7. The rotating block 8 is provided with a threaded groove 13, and the threaded rod 10 is threadedly connected inside the threaded groove 13. When the threaded rod 10 rotates through a driving device, the threaded rod 10 will slide upward along the axial direction of the base tube 7, and the threaded rod 10 drives the second sleeve 1 and the second sleeve 1 to expand and contract. At this time, the rotating block 8 and the base tube 7 are relatively stationary, and both the rotating block 8 and the base tube 7 rotate around the connecting block 11.

[0031] The second sleeve 1 is provided with a first connection hole 16, and the 7-shaped reduction motor unit is provided with a second connection hole 18. A first connecting member 2 is disposed inside the first connection hole 16 and the second connection hole 18. The first connecting member 2 uses a screw, so that the 7-shaped reduction motor unit is connected to the second sleeve 1, and thus the threaded rod 10 is indirectly connected to the second sleeve 1. The connecting block 11 is provided with a third connection hole 12, and the first sleeve 3 is provided with a fourth connection hole 17. A second connecting member 4 is disposed inside the third connection hole 12 and the fourth connection hole 17. The second connecting member 4 uses a screw, so that the connecting block 11 is connected to the first sleeve 3.

[0032] The first sleeve 3 is provided with a wear-resistant plate 6. The wear-resistant plate 6 is used to form a gap between the outer wall of the first sleeve 3 and the inner wall of the second sleeve 1, thereby reducing the friction generated when the first sleeve 3 and the second sleeve 1 slide relative to each other.

[0033] The first sleeve 3 is provided with a clamping hole. One end of the elastic piece 14 is fixed on the wear-resistant block, and the other end is a free end, which facilitates the deformation of the elastic piece 14. A deformation distance 15 is provided between the elastic pieces 14. When the free end of the elastic piece 14 is inserted into the clamping hole, the free end of the elastic piece 14 deforms in the direction of the deformation distance 15, and the elastic force generated by the deformation can make the elastic piece 14 abut against the edge of the clamping hole, improving the clamping effect. When the elastic piece 14 is taken out of the clamping hole, the elastic piece 14 returns to its original state, and the deformation distance 15 also returns to its original state.

[0034] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A straight column electric lifting table, comprising a desktop assembly, a table leg assembly and a driving device, wherein the desktop assembly is arranged on the table leg assembly, the table leg assembly is provided with the driving device, and the driving device is used to extend and retract the table leg assembly to adjust the height of the desktop assembly, characterized in that: The driving device is arranged in the table leg assembly.

2. The electric lifting table with a straight column according to claim 1, characterized in that: The table leg assembly includes a threaded rod, a base tube, a first sleeve and a second sleeve, the first sleeve is connected to the base tube, the second sleeve is connected to the threaded rod, the first sleeve is arranged in the second sleeve, the base tube is threadedly connected to the threaded rod or the base tube is movably provided with a rotating block, the rotating block is threadedly connected to the threaded rod, when the threaded rod is rotated by the driving device, the threaded rod slides along the axial direction of the base tube, and then the first sleeve and the second sleeve are telescoped relative to each other.

3. The electric lifting table with a straight column according to claim 2, characterized in that: The driving device adopts a 7-shaped reduction motor unit.

4. The electric lifting table with a straight column according to claim 3, characterized in that: The second sleeve is provided with a first connecting hole, the 7-shaped reduction motor unit is provided with a second connecting hole, and a first connecting piece is arranged in the first connecting hole and the second connecting hole, so that the 7-shaped reduction motor unit is connected to the second sleeve, and then the threaded rod is indirectly connected to the second sleeve.

5. The electric lifting table with a straight column according to claim 3, characterized in that: The 7-shaped reduction motor unit comprises a reduction gear box, and the reduction gear box is arranged on the top of the second sleeve.

6. The electric lifting table with a straight column according to claim 5, characterized in that: The reduction motor unit also includes a motor, and the output end of the motor and the input end of the threaded rod are arranged at the bottom of the reduction gear box, so that the motor and the threaded rod are arranged below the reduction gear box.

7. The electric lifting table with a straight column according to claim 2, characterized in that: The first casing is provided with a connection block, and the connection block is threadedly connected to the base pipe so that the base pipe rotates along the connection block.

8. The electric lifting table with a straight column according to claim 7, characterized in that: The connection block is provided with a third connection hole, the first sleeve is provided with a fourth connection hole, and second connecting members are arranged in the third connection hole and the fourth connection hole, so that the connection block is connected to the first sleeve.

9. The electric lifting table with a straight column according to claim 2, characterized in that: The first sleeve is provided with a wear-resistant plate, and the wear-resistant plate is used to form a gap between the outer wall of the first sleeve and the inner wall of the second sleeve.

10. The electric lifting table with a straight column according to claim 9, characterized in that: The first sleeve is provided with an embedding hole, and the wear-resistant plate is provided with an elastic block, and the elastic block is used to be embedded in the embedding hole. A deformation spacing is set between the elastic blocks. When the elastic block is embedded in the embedding hole, the elastic block deforms in the direction of the deformation spacing to reduce the deformation spacing. When the elastic block escapes from the embedding hole, the elastic block restores the deformation.

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