Height-adjustable office table supporting device
By using a worm gear and worm wheel structure and a threaded rod with a threaded sleeve, the problem of decreased accuracy caused by wear in the lifting mechanism in the existing technology is solved, enabling precise adjustment of the desk height and convenient disassembly, thus improving the stability and mobility of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-03
AI Technical Summary
In the existing technology, pneumatic and motor-driven lifting mechanisms are prone to wear and tear after long-term use, resulting in a decrease in lifting accuracy and affecting the normal use of the desk.
The threaded rod, which uses a worm gear and worm wheel structure and a threaded sleeve, allows for adjustment of the desktop height by rotating the handle to drive the worm and worm wheel. The disassembly mechanism facilitates movement and installation.
It achieves precise adjustment and stability of desktop height, and is easy to disassemble and move, extending its service life and avoiding the decrease in accuracy caused by wear and tear.
Smart Images

Figure CN223958488U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of office desk support technology, and in particular to an adjustable height office desk support device. Background Technology
[0002] In product design, office desks are a crucial design element. On one hand, their functional design is paramount, considering the practical needs for storage and workspace. On the other hand, their aesthetic design is equally important, requiring a combination of ergonomics and aesthetics to create a comfortable and visually appealing form. A good support structure enhances the desk's strength during use. Its primary function is to support the weight of the desktop and the various items placed on it, acting like the pillars of a building to ensure stability during daily use. When users place computers, files, and office equipment on the desktop, the support structure effectively prevents the desktop from wobbling or collapsing. This is critical for jobs requiring high precision, such as drafting and operating precision instruments. However, during use, the desk's height often needs to be adjusted to better accommodate different users.
[0003] The height adjustment mechanism consists of a cylinder, piston, and control lever. Among them, the pneumatic adjustment mechanism is widely used. It uses high-pressure gas in a sealed cylinder to adjust the piston's up and down movement by controlling the opening degree of the valve, thereby raising and lowering the desktop. During operation, simply pressing and pulling the control lever can easily change the desktop height, achieving stepless adjustment and precisely adapting to the personalized needs of different users. There is also a screw and nut type adjustment mechanism, where the motor drives the screw to rotate, and the nut moves linearly along the screw, thus smoothly changing the height of the support device. This method has high precision and strong stability, and is favored in professional office environments with strict height adjustment requirements. However, this type of lifting method will cause wear and tear after long-term use, resulting in a decrease in lifting accuracy and affecting normal use. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an adjustable height desk support device, which aims to improve the problem that the existing lifting mechanism will wear down after long-term use, resulting in a decrease in lifting accuracy and affecting normal use.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: an adjustable-height office desk support device, including a desktop, the bottom of which is provided with multiple circular holes. A connecting rod is slidably connected to the inner wall of each circular hole. A threaded rod is fixedly connected to the bottom of the connecting rod. A threaded sleeve is threadedly connected to the outer wall of the threaded rod near the middle. A worm gear is fixedly connected to the outer wall of the threaded sleeve. A worm is meshed with the outer wall of the worm gear. A handle is fixedly connected to the right side of the worm. A connecting rod is fixedly connected to the right side of the outer wall of the threaded rod. A sliding column is fixedly connected to the other end of the connecting rod. A connecting rod is fixedly connected to the top of the sliding column. The top of the connecting rod is slidably connected to the bottom of the desktop. A disassembly mechanism is provided at the bottom of the desktop for disassembly and installation.
[0006] As a further description of the above technical solution:
[0007] The disassembly mechanism includes two latches, with the opposite sides of the two latches fixedly connected to the center of the desktop. The desktop has multiple cylindrical grooves inside, with the inner walls of the cylindrical grooves slidably connected to the outer walls of the latches. The bottom of the desktop has multiple threaded holes, with bolts threaded to the inner walls of the threaded holes. A connecting plate is threaded to the outer walls of the bolts near the center. The top of the connecting plate has multiple threaded holes.
[0008] As a further description of the above technical solution:
[0009] The bottom of the desktop is slidably connected to multiple support columns, and the bottom of each support column is fixedly connected to a cylindrical sleeve.
[0010] As a further description of the above technical solution:
[0011] A spring is fixedly connected to the bottom of the cylindrical sleeve, and a cylindrical sleeve is fixedly connected to the bottom of the spring.
[0012] As a further description of the above technical solution:
[0013] The outer wall of the sliding column is slidably connected to a support plate, and the right side of the support plate is slidably connected to the outer wall of the cylindrical sleeve.
[0014] As a further description of the above technical solution:
[0015] The outer wall of the threaded rod is slidably connected to a second support plate, and the left side of the second support plate is fixedly connected to the outer wall of the cylindrical sleeve.
[0016] As a further description of the above technical solution:
[0017] A baffle is fixedly connected to the top left side of the support plate one, and the top of the baffle is slidably connected to the bottom of the connecting rod two.
[0018] As a further description of the above technical solution:
[0019] A table mat is fixedly connected to the top of the tabletop, and a circular hole is provided at the bottom of the tabletop near the center.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, when height adjustment is required, first rotate the handle. The handle will drive the worm gear to rotate, then the worm gear will drive the worm wheel to rotate, and then the worm wheel will drive the threaded sleeve to rotate. At the same time, the threaded sleeve will push the threaded rod upward. Then, the connecting rod two will drive the sliding column to move upward together. At this time, the sliding column will drive the connecting rod three to push the tabletop upward. At this time, the overall height of the tabletop will be raised. When the height of the tabletop needs to be lowered, the handle is rotated in the opposite direction until the connecting rod two is blocked by the stop. This realizes the function of freely adjusting the height of the table according to actual requirements.
[0022] 2. In this utility model, when it is necessary to move and transport, first unscrew the bolts. At this time, the bolts leave the threaded hole two of the connecting plate and the threaded hole one of the table. Then remove the connecting plate. Then lift the table upward until the connecting rod one and the connecting rod three leave the circular hole one. Then pull the table outward and the buckle leaves the cylindrical groove of the table. This realizes the function of disassembling the whole and making it more convenient to move and transport. Attached Figure Description
[0023] Figure 1 This is a front perspective view of an adjustable height desk support device proposed in this utility model.
[0024] Figure 2 This is a partial exploded view of the desktop structure of an adjustable height office desk support device proposed in this utility model;
[0025] Figure 3 This is a partial structural breakdown of the buckle of an adjustable height desk support device proposed in this utility model;
[0026] Figure 4 This is a partial structural exploded view of the threaded rod of an adjustable height desk support device proposed in this utility model;
[0027] Figure 5 This is a partial structural exploded view of the sliding column of an adjustable height office desk support device proposed in this utility model;
[0028] Figure 6This is a partial structural exploded view of the spring of an adjustable height desk support device proposed in this utility model.
[0029] Legend:
[0030] 1. Desktop; 2. Disassembly mechanism; 201. Buckle; 202. Cylindrical groove; 203. Threaded hole one; 204. Connecting plate; 205. Threaded hole two; 206. Bolt; 3. Circular hole one; 4. Connecting rod one; 5. Threaded rod; 6. Threaded sleeve; 7. Worm gear; 8. Worm; 9. Handle; 10. Connecting rod two; 11. Connecting rod three; 12. Sliding column; 13. Support plate one; 14. Stop; 15. Support plate two; 16. Support column; 17. Cylindrical sleeve; 18. Spring; 19. Cylindrical sleeve; 20. Table mat; 21. Circular hole two. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Please see the appendix Figure 4 Appendix Figure 5 and attached Figure 6 This utility model provides an embodiment of an adjustable height office desk support device, including a desktop 1. Multiple circular holes 3 are provided at the bottom of the desktop 1. A connecting rod 4 is slidably connected to the inner wall of each circular hole 3, making the overall connection more stable. A threaded rod 5 is fixedly connected to the bottom of the connecting rod 4. A threaded sleeve 6 is threadedly connected to the outer wall of the threaded rod 5 near the middle. A worm gear 7 is fixedly connected to the outer wall of the threaded sleeve 6. A worm 8 is meshed with the outer wall of the worm gear 7, enabling unidirectional transmission. A handle 9 is fixedly connected to the right side of the worm 8. A connecting rod 10 is fixedly connected to the right side of the outer wall of the threaded rod 5. A sliding column 12 is fixedly connected to the other end of the connecting rod 10, allowing sliding. A connecting rod 11 is fixedly connected to the top of the sliding column 12. The top of the connecting rod 11 is slidably connected to the bottom of the desktop 1. A disassembly mechanism 2 is provided at the bottom of the desktop 1 for disassembly and installation.
[0033] Specifically, the bottom of the desktop 1 has multiple circular holes 3 evenly distributed to ensure structural stability and aesthetics. Each circular hole 3 has a connecting rod 4 slidably connected to its inner wall. These connecting rods 4 can move up and down within the circular hole 3, thus adjusting the height of the desktop 1. A threaded rod 5 is fixedly connected to the bottom of each connecting rod 4. The threaded rod 5 fits tightly with the circular hole 3 through its thread, ensuring a stable connection. A threaded sleeve 6 is threadedly connected to the outer wall of the threaded rod 5 near the center. The threaded sleeve 6 fits tightly with the threaded rod 5 and provides a rotating... The rotating platform has a worm gear 7 fixedly connected to the outer wall of the threaded sleeve 6. A worm 8 is meshed with the outer wall of the worm gear 7. The meshing of the worm 8 and the worm gear 7 allows the height of the tabletop 1 to be adjusted by rotating the worm 8. A handle 9 is fixedly connected to the right side of the worm 8, allowing the worm 8 to be rotated manually to adjust the height. In addition, a connecting rod 2 10 is fixedly connected to the right side of the outer wall of the threaded rod 5. A sliding column 12 is fixedly connected to the other end of the connecting rod 2 10. A connecting rod 3 11 is fixedly connected to the top of the sliding column 12. The connecting rod 3 11 is connected to the bottom of the tabletop 1, ensuring the stability and reliability of the entire tabletop 1 device.
[0034] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The disassembly mechanism 2 includes two buckles 201. The two buckles 201 are fixedly connected to the middle of the tabletop 1 on opposite sides. The tabletop 1 has multiple cylindrical grooves 202 inside. The inner wall of the cylindrical grooves 202 is slidably connected to the outer wall of the buckles 201, making the overall connection more stable. The bottom of the tabletop 1 has multiple threaded holes 203. The inner wall of the threaded holes 203 is threaded with bolts 206. The outer wall of the bolts 206 is threaded with a connecting plate 204 near the middle, which plays a connecting role. The top of the connecting plate 204 has multiple threaded holes 205.
[0035] Specifically, the disassembly mechanism 2 includes two clips 201, which can be fixedly connected to the middle part of the tabletop 1. In order to ensure a stable connection between the clips 201 and the tabletop 1, multiple cylindrical grooves 202 are opened inside the tabletop 1. The inner walls of these cylindrical grooves 202 are slidably connected to the outer walls of the clips 201. In addition, in order to further enhance the stability and durability of the structure, multiple threaded holes 203 are opened at the bottom of the tabletop 1. The inner walls of these threaded holes 203 are threaded and can be threadedly connected to bolts 206. The outer wall of the bolts 206 is threadedly connected to a connecting plate 204 near the middle part. The top of the connecting plate 204 is also provided with multiple threaded holes 205, which can be used for further fixing.
[0036] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 4 Multiple support columns 16 are slidably connected around the bottom of the desktop 1. A cylindrical sleeve 17 is fixedly connected to the bottom of the support column 16. A spring 18 is fixedly connected to the bottom of the cylindrical sleeve 17, providing elastic support for the whole. A cylindrical sleeve 19 is fixedly connected to the bottom of the spring 18. A support plate 13 is slidably connected to the outer wall of the sliding column 12, which plays a supporting role. The right side of the support plate 13 is slidably connected to the outer wall of the cylindrical sleeve 19.
[0037] Specifically, multiple support columns 16 are slidably connected around the bottom of the desktop 1. The bottom of each support column 16 is fixedly connected to a cylindrical sleeve 17 to ensure the stability and durability of the support columns 16. Springs 18 are fixedly connected to the bottom of the cylindrical sleeve 17, providing elastic support so that the entire desktop 1 system can adapt to uneven surfaces during use. To further enhance the stability of the support structure, cylindrical sleeves 19 are fixedly connected to the bottom of the springs 18. In addition, a support plate 13 is slidably connected to the outer wall of the sliding column 12, increasing the support area of the desktop 1 and improving overall stability. The right side of the support plate 13 is slidably connected to the outer wall of the cylindrical sleeve 19, allowing the support plate 13 to be adjusted as needed.
[0038] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 5 The outer wall of the threaded rod 5 is slidably connected to a support plate 2 15. The left side of the support plate 2 15 is fixedly connected to the outer wall of the cylindrical sleeve 19. The top left side of the support plate 1 13 is fixedly connected to a baffle 14, which can provide cover. The top of the baffle 14 is slidably connected to the bottom of the connecting rod 2 10. The top of the tabletop 1 is fixedly connected to a table mat 20, which serves as a protective function. A circular hole 21 is opened near the middle of the bottom of the tabletop 1.
[0039] Specifically, a support plate 2 15 is slidably connected to the outer wall of the threaded rod 5, allowing the support plate 2 15 to move freely along the outer wall of the threaded rod 5. The left side of the support plate 2 15 is fixedly connected to the outer wall of the cylindrical sleeve 19, ensuring the stability and reliability between the support plate 2 15 and the cylindrical sleeve 19. A stop 14 is fixedly connected to the top left of the support plate 1 13. The stop 14 is set to prevent the support plate 1 13 from moving unnecessarily during use. The top of the stop 14 is slidably connected to the bottom of the connecting rod 2 10, allowing the connecting rod 2 10 to move to a certain extent on the stop 14, thereby adapting to different usage needs. In addition, a table mat 20 is fixedly connected to the top of the tabletop 1, and a circular hole 21 is opened near the middle of the bottom of the tabletop 1.
[0040] Working principle: When height adjustment is required, first turn the handle 9. The handle 9 will drive the worm gear 8 to rotate, then the worm gear 8 will drive the worm wheel 7 to rotate, then the worm wheel 7 will drive the threaded sleeve 6 to rotate, and the threaded sleeve 6 will push the threaded rod 5 upward. At this time, the threaded rod 5 will drive the connecting rod 1 4 to push the tabletop 1 upward, and the connecting rod 2 10 will also move upward. Then the connecting rod 2 10 will drive the sliding column 12 to move upward together, and the sliding column 12 will drive the connecting rod 3 11 to push the tabletop 1 upward. At this time, the overall height of the tabletop 1 is raised. When the height of the tabletop 1 needs to be lowered, the handle 9 is turned in the opposite direction until the connecting rod 2 10 is blocked by the stop 14. This realizes the function of freely adjusting the height of the table according to actual requirements.
[0041] When it is necessary to move and transport, first unscrew the bolt 206. At this time, the bolt 206 will leave the threaded hole 205 of the connecting plate 204 and the threaded hole 203 of the tabletop 1. Then remove the connecting plate 204. Then lift the tabletop 1 upward until the connecting rod 4 and the connecting rod 11 leave the circular hole 3. Then pull the tabletop 1 outward and the buckle 201 will leave the cylindrical groove 202 of the tabletop 1. This allows the whole to be disassembled, making it more convenient to move and transport.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An adjustable height office desk support arrangement comprising a desk top (1) characterised in that: The bottom of the desktop (1) is provided with a plurality of circular holes (3), the inner wall of the circular hole (3) is slidably connected with a connecting rod (4), the bottom of the connecting rod (4) is fixedly connected with a threaded rod (5), the outer wall of the threaded rod (5) is threadedly connected with a threaded sleeve (6) near the middle, the outer wall of the threaded sleeve (6) is fixedly connected with a worm gear (7), the outer wall of the worm gear (7) is meshingly connected with a worm (8), the right side of the worm (8) is fixedly connected with a handle (9), the outer wall of the threaded rod (5) is fixedly connected with a connecting rod (10) on the right side, the other end of the connecting rod (10) is fixedly connected with a sliding column (12), the top of the sliding column (12) is fixedly connected with a connecting rod (11), the top of the connecting rod (11) is slidably connected with the bottom of the desktop (1), and the bottom of the desktop (1) is provided with a dismounting mechanism (2).
2. An adjustable height desk support apparatus as claimed in claim 1, wherein: The dismounting mechanism (2) comprises two buckles (201), the distal sides of the two buckles (201) are fixedly connected with the middle of the desktop (1), a plurality of cylindrical grooves (202) are formed in the desktop (1), the inner wall of the cylindrical groove (202) is slidably connected with the outer wall of the buckle (201), a plurality of threaded holes (203) are formed in the bottom of the desktop (1), the inner wall of the threaded hole (203) is threadedly connected with a bolt (206), the outer wall of the bolt (206) is threadedly connected with a connecting plate (204) near the middle, and a plurality of threaded holes (205) are formed in the top of the connecting plate (204).
3. An adjustable height desk support apparatus as claimed in claim 1, wherein: The bottom of the desktop (1) is slidably connected with a plurality of supporting columns (16), and the bottom of the supporting column (16) is fixedly connected with a cylindrical sleeve head (17).
4. An adjustable height desk support apparatus as claimed in claim 3, wherein: The bottom of the cylindrical sleeve head (17) is fixedly connected with a spring (18), and the bottom of the spring (18) is fixedly connected with a cylindrical sleeve (19).
5. An adjustable height workstation support apparatus as claimed in claim 1, wherein: The outer wall of the sliding column (12) is slidably connected with a supporting plate (13), and the right side of the supporting plate (13) is slidably connected with the outer wall of the cylindrical sleeve (19).
6. An adjustable height workstation support apparatus as claimed in claim 1, wherein: The outer wall of the threaded rod (5) is slidably connected with a supporting plate (15), and the left side of the supporting plate (15) is fixedly connected with the outer wall of the cylindrical sleeve (19).
7. An adjustable height desk support apparatus as claimed in claim 5, wherein: The top left side of the supporting plate (13) is fixedly connected with a stop table (14), and the top of the stop table (14) is slidably connected with the bottom of the connecting rod (10).
8. An adjustable height desk support apparatus as claimed in claim 1, wherein: The top of the desktop (1) is fixedly connected with a table mat (20), and the bottom of the desktop (1) is provided with a circular hole (21) near the middle.