Lifting table motor

Abstract

The utility model discloses a lifting table motor, which comprises a worm motor and a lifting transmission assembly, the lifting transmission assembly comprises a gear box, a compound gear and a transmission gear, the transmission gear and the compound gear are rotatably arranged in the gear box, the compound gear comprises a transmission gear and a follow-up gear, and the transmission gear and the follow-up gear are rotatably arranged in the gear box. The transmission gear is meshed with a worm of the worm motor, the follow-up gear is meshed with a gear part of the transmission gear, the gear part of the transmission gear and a transmission shaft of the transmission gear are coaxially arranged, the transmission shaft synchronously rotates along with the gear part, and the distance between the center line of the worm of the worm motor and the center line of the transmission gear is smaller than a set distance threshold value; the worm motor drives the compound gear to rotate through a worm, and therefore the transmission gear is driven to rotate synchronously. Through the structural design of the newly added compound gear, the center of the worm of the worm motor and the center of the transmission gear are located on the same center line, the packaging size and difficulty are reduced, the attractiveness is improved, and practicability is high.

Description

Adjustable desk motor Technical Field

[0001] This utility model relates to the field of motor transmission technology, and in particular to a height-adjustable table motor. Background Technology

[0002] In existing technologies, the lifting function of height-adjustable tables is often achieved through a worm gear motor and worm wheel drive. The worm gear motor is fixed to the outer tube, and the worm gear is connected to the inner tube via a worm wheel. The rotation of the worm gear motor drives the worm wheel to rotate, causing the inner tube of the height-adjustable table to move relative to the outer tube. However, in existing worm gear motors, the worm wheel is offset from the center of the worm gear during assembly. This structural design causes the worm gear motor to be offset to one side of the outer tube of the height-adjustable table during installation, which affects the aesthetics and increases the packaging volume and difficulty.

[0003] There are currently no effective solutions to the problems of difficult installation, unsightly appearance, and large packaging volume and difficulty between the motor and the outer tube of the lifting table in the existing related technologies. Summary of the Invention

[0004] In view of this, it is necessary to provide a height-adjustable table motor to at least solve the problems of installation difficulties, unsightly appearance, and large packaging volume and difficulty between the height-adjustable table motor and the outer tube of the height-adjustable table in the related technology.

[0005] The present invention provides a height-adjustable desk motor, comprising a worm gear motor and a height-adjusting transmission assembly. The height-adjusting transmission assembly includes a gearbox, a compound gear, and a transmission gear. Both the transmission gear and the compound gear are rotatably disposed inside the gearbox. The compound gear includes transmission teeth and follower teeth. The transmission teeth mesh with the worm of the worm gear motor, and the follower teeth mesh with the gear portion of the transmission gear. The gear portion of the transmission gear is coaxially arranged with the transmission shaft of the transmission gear, and the transmission shaft rotates synchronously with the gear portion. The distance between the center line of the worm of the worm gear motor and the center line of the transmission gear is less than a set distance threshold. The worm gear motor drives the compound gear to rotate via the worm, thereby driving the transmission gear to rotate.

[0006] In some embodiments, the gearbox includes a cover, a body, and a base. One side of the base is mounted on an external lifting table tube, one side of the body is mounted on the other side of the base, and the cover closes to the other side of the body. A first receiving portion is formed between the cover and the body, and a second receiving portion for mounting a control board is formed between the body and the base.

[0007] In some embodiments, the cover, the body, and the base are provided with a drive shaft hole, and the body is provided with a first receiving groove adapted to the drive shaft in the first receiving portion. The bottom of the first receiving groove extends into the second receiving portion. The drive shaft is embedded in the first receiving groove. One end of the drive shaft passes through the drive shaft hole and is installed at the cover. The other end of the drive shaft passes through the drive shaft hole and extends to the outside of the base.

[0008] In some embodiments, the follower teeth include one of the following: straight teeth and helical teeth.

[0009] In some embodiments, the housing is provided with a second receiving groove adapted to the compound gear within the first receiving portion. A positioning post is provided in the middle of the second receiving groove. The transmission gear is embedded in the second receiving groove and sleeved on the positioning post. The follower gear is exposed outside the second receiving groove and meshes with the gear portion.

[0010] In some embodiments, the bottom of the housing is provided with a worm gear hole, through which the worm of the worm motor enters the first receiving portion and meshes with the transmission teeth in the second receiving groove; wherein, the worm of the worm motor drives the follower teeth to rotate through the transmission teeth, so as to drive the transmission gear to rotate through the gear portion.

[0011] In some embodiments, the diameter of the follower tooth is smaller than the diameter of the gear portion.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This application provides a height-adjustable table motor. By adding a composite gear between the worm motor and the transmission gear, the center of the worm of the worm motor and the center of the transmission gear are located on the same center line, which reduces the packaging volume and difficulty, improves the aesthetics, and enhances practicality. Attached Figure Description

[0013] Figure 1 is a schematic diagram of the overall structure of an embodiment of this application;

[0014] Figure 2 is a schematic diagram of the structure of this application with the lid removed;

[0015] Figure 3 is a structural schematic diagram of the box body according to an embodiment of this application;

[0016] Figure 4 is a schematic diagram of the lifting transmission assembly and worm gear according to an embodiment of this application;

[0017] Figure 5 is a schematic diagram of the assembly of the embodiment of this application with the outer tube of the lifting table.

[0018] Figure label:

[0019] 100. Worm motor; 11. Worm;

[0020] 200. Lifting transmission assembly; 21. Gearbox; 211. Gearbox cover; 212. Gearbox body; 213. Gearbox base; 214. Drive shaft hole; 215. First receiving groove; 216. Second receiving groove; 217. Positioning pin; 218. Worm gear hole; 22. Compound gear; 221. Transmission gear; 222. Follower gear; 23. Transmission gear; 231. Gear section; 232. Drive shaft;

[0021] 300. External tube of height-adjustable table. Detailed Implementation

[0022] 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.

[0023] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Referring to Figures 1 to 5, this application embodiment provides a height-adjustable desk motor, including a worm gear motor 100 and a height-adjustable transmission assembly 200. The height-adjustable transmission assembly 200 includes a gearbox 21, a compound gear 22, and a transmission gear 23. Both the transmission gear 23 and the compound gear 22 are rotatably disposed inside the gearbox 21. The compound gear 22 includes a transmission tooth 221 and a follower tooth 222. The transmission tooth 221 meshes with the worm 11 of the worm gear motor 100, and the follower tooth 222 meshes with the transmission gear 23. The gear portion 231 of the transmission gear 23 and the transmission shaft 232 of the transmission gear 23 are coaxially arranged, and the transmission shaft 232 rotates synchronously with the gear portion 231. The distance between the center line of the worm 11 of the worm gear motor 100 and the center line of the transmission gear 23 is less than a set distance threshold. The worm gear motor 100 drives the compound gear 22 to rotate through the worm 11, thereby driving the transmission gear 23 to rotate.

[0026] It should be noted that this configuration, through the structural design of adding a compound gear 22 between the worm motor 100 and the transmission gear 23, specifically, by using the transmission gear 221 to mesh with the worm 11 and by using the follower gear 222 to mesh with the gear part 231, ensures that the distance between the center line of the worm 11 of the worm motor 100 and the center line of the transmission gear 23 is less than a set distance threshold. This distance threshold can be 0 or 0.5mm. This prevents the worm motor 100 from being placed outside the outer tube 300 of the lifting table, thereby reducing the packaging volume and difficulty, improving aesthetics, and allowing the transmission shaft 232 to be connected to the inner tube of the lifting table, driving the inner tube of the lifting table to move relative to the outer tube 300 of the lifting table.

[0027] In order to achieve the limiting and fixing function of the compound gear 22 and the transmission gear 23, in some optional embodiments, the gearbox 21 includes a cover 211, a body 212 and a base 213. One side of the base 213 is mounted on the external lifting table outer tube 300, one side of the body 212 is mounted on the other side of the base 213, and the cover 211 covers the other side of the body 212. A first receiving part is formed between the cover 211 and the body 212, and a second receiving part for mounting the control board is formed between the body 212 and the base 213.

[0028] To further achieve the limiting and fixing function of the drive shaft 232, in some optional embodiments, the cover 211, the housing 212 and the base 213 are provided with a drive shaft hole 214. The housing 212 is provided with a first receiving groove 215 adapted to the drive shaft 232 in the first receiving part. The bottom of the first receiving groove 215 extends into the second receiving part. The drive shaft 232 is embedded in the first receiving groove 215. One end of the drive shaft 232 passes through the drive shaft hole 214 and is installed at the cover 211. The other end of the drive shaft 232 passes through the drive shaft hole 214 and extends to the outside of the base 213.

[0029] In order to achieve effective transmission between the worm gear 11 and the transmission gear 23, the follower gear 222 includes one of the following: spur gear or helical gear.

[0030] In order to achieve the limiting and fixing function of the compound gear 22, in some optional embodiments, the housing 212 is provided with a second receiving groove 216 adapted to the compound gear 22 in the first receiving part. The middle part of the second receiving groove 216 is provided with a positioning post 217. The transmission gear 221 is embedded in the second receiving groove 216 and sleeved on the positioning post 217. The follower gear 222 is exposed outside the second receiving groove 216 and meshes with the gear part 231.

[0031] In order to achieve the meshing connection between the worm 211 and the transmission gear 221, in some optional embodiments, the bottom of the housing 212 is provided with a worm hole 218, and the worm 11 of the worm motor 100 passes through the worm hole 218 into the first receiving part and meshes with the transmission gear 221 in the second receiving groove 216; wherein, the worm 11 of the worm motor 100 drives the follower gear 22 to rotate through the transmission gear 221, so as to drive the transmission gear 23 to rotate through the gear part 221.

[0032] In some alternative embodiments, the diameter of the follower tooth 222 is smaller than the diameter of the gear portion 231.

[0033] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A lift table motor, characterized by, The system includes a worm motor (100) and a lifting transmission assembly (200). The lifting transmission assembly (200) includes a gearbox (21), a compound gear (22), and a transmission gear (23). Both the transmission gear (23) and the compound gear (22) are rotatably disposed inside the gearbox (21). The compound gear (22) includes a transmission gear (221) and a follower gear (222). The transmission gear (221) meshes with the worm (11) of the worm motor (100), and the follower gear (222) meshes with the transmission gear (23). The gear part (231) of the transmission gear (23) meshes with the transmission shaft (232) of the transmission gear (23), and the transmission shaft (232) rotates synchronously with the gear part (231). The distance between the center line of the worm (11) of the worm motor (100) and the center line of the transmission gear (23) is less than a set distance threshold. The worm motor (100) drives the compound gear (22) to rotate through the worm (11), thereby driving the transmission gear (23) to rotate.

2. The lift table motor according to claim 1, characterized by, The gearbox (21) includes a cover (211), a body (212), and a base (213). One side of the base (213) is mounted on an external lifting table tube (300), and one side of the body (212) is mounted on the other side of the base (213). The cover (211) covers the other side of the body (212). A first receiving portion is formed between the cover (211) and the body (212), and a second receiving portion for mounting a control board is formed between the body (212) and the base (213).

3. The height-adjustable table motor according to claim 2, characterized in that, The cover (211), the body (212), and the base (213) are provided with a drive shaft hole (214). The body (212) is provided with a first receiving groove (215) adapted to the drive shaft (232) in the first receiving part. The bottom of the first receiving groove (215) extends into the second receiving part. The drive shaft (232) is embedded in the first receiving groove (215). One end of the drive shaft (232) passes through the drive shaft hole (214) and is installed at the cover (211). The other end of the drive shaft (232) passes through the drive shaft hole (214) and extends to the outside of the base (213).

4. The height-adjustable table motor according to claim 3, characterized in that, The follower tooth (222) includes one of the following: straight tooth, helical tooth.

5. The lift table motor of claim 4, wherein, The housing (212) is provided with a second receiving groove (216) adapted to the composite gear (22) within the first receiving part. A positioning post (217) is provided in the middle of the second receiving groove (216). The transmission gear (221) is embedded in the second receiving groove (216) and sleeved on the positioning post (217). The follower gear (222) is exposed outside the second receiving groove (216) and meshes with the gear part (231).

6. The lift table motor of claim 5, wherein, The bottom of the housing (212) is provided with a worm hole (218). The worm (11) of the worm motor (100) passes through the worm hole (218) and enters the first receiving part and meshes with the transmission gear (221) in the second receiving groove (216). The worm (11) of the worm motor (100) drives the follower gear (222) to rotate through the transmission gear (221), so as to drive the transmission gear (23) to rotate through the gear part (231).

7. The height-adjustable table motor according to claim 6, characterized in that, The diameter of the follower tooth (222) is smaller than the diameter of the gear part (231).

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