Lifting tooth box
By combining damping sliders and worm gears, the problems of large size and unstable reset of traditional gearboxes are solved, achieving miniaturization and improved reliability of gearboxes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ZHONGHUA ZHILIAN TECH CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional gearboxes require complex mechanisms such as independent motors and clutches, resulting in bulky equipment that is difficult to miniaturize and port. At the same time, gravity reset mechanisms are prone to reset failure due to uneven resistance.
It adopts a combination of damping sliding parts, spring fixing parts, damping springs, worm gears and gears. The motor drives the helical gears and spur gears to rotate. The threaded engagement and spring damping control the lifting and rotation of the worm gear, realizing unified control of lifting and rotation functions, eliminating the need for an additional reset mechanism.
It reduces the overall size and manufacturing cost of the equipment, improves the reliability of the equipment, simplifies the assembly complexity, and realizes the miniaturization and portability of the gearbox.
Smart Images

Figure CN224301301U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a dental dental box, and more particularly to a lifting dental dental box, belonging to the field of dental dental box technology. Background Technology
[0002] The massage gearbox consists of precision gear sets, drive shafts, bearings, and other components. Through precise meshing and transmission between the gears, the motor power is converted into the rhythmic movement of the massage heads. High-quality massage gearboxes use high-strength, wear-resistant materials, and the gears are finely machined with precise tooth profiles, enabling stable, low-noise power transmission. This allows the massage heads to knead and pound with uniform force and rhythm, simulating professional massage techniques.
[0003] As the driving component for the movement of a massager, the tooth box is composed of numerous gears, shafts, and bearings. In traditional tooth boxes, the lifting and rotating functions often require independent motors, clutches, and other complex mechanisms, making the overall size of the device large and difficult to miniaturize and port, while also increasing manufacturing costs. At the same time, traditional lifting mechanisms rely on gravity for reset, which is prone to reset failure due to uneven resistance. Therefore, a lifting tooth box is proposed. Utility Model Content
[0004] In view of this, the present invention provides a lifting gearbox to solve or alleviate one of the technical problems existing in the prior art, and at least provides a beneficial option.
[0005] The technical solution of this utility model embodiment is implemented as follows: a lifting gearbox includes a gearbox assembly, the gearbox assembly including a damping sliding member, a spring fixing member, a damping spring, a gearbox upper shell, a first worm gear, a first spur gear, a fixing plate, a first helical gear, a gearbox lower shell, a motor base, a motor, a second worm gear, a second spur gear, a third spur gear, and a second helical gear;
[0006] A motor mount is fixedly connected to the inner wall of the lower housing of the gearbox, and a motor is installed on the inner wall of the motor mount. A first helical gear and a second helical gear are rotatably connected to the inner wall of the lower housing of the gearbox. A third spur gear is fixedly connected to the top of the first and second helical gears. Fixed plates are symmetrically slidably connected to the inner wall of the lower housing of the gearbox. A first worm and a second worm are fixedly connected to the top of the two fixed plates, respectively. A first spur gear is threadedly connected to the outer wall of the first worm, and a second spur gear is threadedly connected to the outer wall of the second worm. An upper housing of the gearbox is fixedly connected to the top of the lower housing of the gearbox by bolts. A damping slider is symmetrically slidably connected to the inner wall of the upper housing of the gearbox. A spring fixing member is fixedly connected to the inner wall of the damping slider. A damping spring is fixedly connected to one side of the spring fixing member. When the first and second spur gears rotate in opposite directions, they drive the first and second worms to reset. When the first and second worms slide, they are subjected to the same damping force from the spring fixing member.
[0007] A further preferred embodiment: the first helical gear and the second helical gear are connected to the motor drive, and both the first spur gear and the second spur gear mesh with the third spur gear.
[0008] A further preferred embodiment: a battery is installed on the inner side wall of the lower shell of the dental box.
[0009] A further preferred embodiment: a motor shaft fixing component is fixedly connected to the inner side wall of the lower housing of the gearbox, and the output shaft of the motor is installed on the inner side wall of the motor shaft fixing component.
[0010] A further preferred embodiment: the top of the dental assembly is provided with a massage component, the massage component including a massage head upper shell and a massage head lower shell;
[0011] The bottom of the upper shell of the massage head is fixedly connected to the lower shell of the massage head by bolts.
[0012] A further preferred embodiment: a massage head light plate is installed on the top of the lower shell of the massage head.
[0013] A further preferred embodiment: a conductive post is installed at the bottom of the lower shell of the massage head, and a conductive plate is installed at the bottom of the conductive post.
[0014] A further preferred embodiment: the lower shell of the massage head is fixedly connected to the top of the upper shell of the dental box.
[0015] The present invention has the following advantages due to the adoption of the above technical solution:
[0016] I. This utility model uses a motor to drive the rotation of helical and spur gears, and controls the lifting and rotation of the worm gear through the frictional force of the threaded engagement and spring damping. This eliminates the need to set up separate motors to control the lifting and rotation functions of the gearbox, thus reducing the overall size and manufacturing cost of the equipment.
[0017] Second, this utility model automatically resets the worm gear by reversing the motor, eliminating the need for an additional reset mechanism, thus reducing assembly complexity and improving equipment reliability.
[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is an exploded structural diagram of the present invention;
[0021] Figure 2 This is a structural diagram of the second spur gear and the second helical gear of this utility model;
[0022] Figure 3 This is a structural diagram of the first spur gear and the first helical gear of this utility model;
[0023] Figure 4 This is a structural diagram of the damping sliding component of this utility model.
[0024] Reference numerals: 10. Massage assembly; 11. Massage head upper shell; 12. Massage head lamp plate; 13. Massage head lower shell; 14. Conductive disk; 15. Conductive column; 20. Gearbox assembly; 21. Damping slider; 22. Spring fixing component; 23. Damping spring; 24. Gearbox upper shell; 25. First worm gear; 26. First spur gear; 27. Fixing plate; 28. First helical gear; 29. Gearbox lower shell; 210. Motor base; 211. Battery; 212. Motor; 213. Motor shaft fixing component; 214. Second worm gear; 215. Second spur gear; 216. Third spur gear; 217. Second helical gear. Detailed Implementation
[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0027] like Figures 1-4 As shown, this utility model embodiment provides a lifting gearbox, including a gearbox assembly 20. The gearbox assembly 20 includes a damping sliding member 21, a spring fixing member 22, a damping spring 23, a gearbox upper shell 24, a first worm gear 25, a first spur gear 26, a fixing plate 27, a first helical gear 28, a gearbox lower shell 29, a motor base 210, a motor 212, a second worm gear 214, a second spur gear 215, a third spur gear 216, and a second helical gear 217.
[0028] A motor mount 210 is fixedly connected to the inner wall of the lower gearbox 29. A motor 212 is mounted on the inner wall of the motor mount 210. A first helical gear 28 and a second helical gear 217 are rotatably connected to the inner wall of the lower gearbox 29. A third spur gear 216 is fixedly connected to the top of the first helical gear 28 and the second helical gear 217. Fixed plates 27 are symmetrically slidably connected to the inner wall of the lower gearbox 29. A first worm gear 25 and a second worm gear 214 are fixedly connected to the top of the two fixed plates 27, respectively. A first spur gear 26 is threadedly connected to the outer wall of the first worm gear 25, and a second spur gear 215 is threadedly connected to the outer wall of the second worm gear 214. An upper gearbox 24 is fixedly connected to the top of the lower gearbox 29 by bolts. The inner wall of component 4 is symmetrically connected to a damping slider 21. The inner wall of the damping slider 21 is fixedly connected to a spring fixing member 22. A damping spring 23 is fixedly connected to one side of the spring fixing member 22. The first worm 25 and the second worm 214 are used to drive the massage heads on both sides to rotate. When the first spur gear 26 and the second spur gear 215 rotate in opposite directions, they drive the first worm 25 and the second worm 214 to reset. After the first worm 25 and the second worm 214 are reset, the massage assembly 10 is reset, and the massage head shell 11 returns to its original position and angle. When the first worm 25 and the second worm 214 slide, they are subjected to the same damping force from the spring fixing member 22, ensuring that the first worm 25 and the second worm 214 are subjected to balanced forces and maintain synchronous movement.
[0029] In this embodiment, specifically: the first helical gear 28 and the second helical gear 217 are connected to the motor 212 for transmission; the first spur gear 26 and the second spur gear 215 are both meshed with the third spur gear 216; when the third spur gear 216 rotates with the helical gear, it drives the first spur gear 26 and the second spur gear 215 to rotate.
[0030] In this embodiment, specifically: a battery 211 is installed on the inner side wall of the lower shell 29 of the gearbox, and the battery 211 supplies power to the gearbox.
[0031] In this embodiment, specifically: a motor shaft fixing member 213 is fixedly connected to the inner side wall of the lower housing 29 of the gearbox, the output shaft of the motor 212 is installed on the inner side wall of the motor shaft fixing member 213, and a helical gear is installed on the output shaft of the motor 212. The first helical gear 28 and the second helical gear 217 rotate through the helical gear engagement.
[0032] In this embodiment, specifically: a massage assembly 10 is provided on the top of the dental box assembly 20, and the massage assembly 10 includes a massage head upper shell 11 and a massage head lower shell 13;
[0033] The bottom of the massage head upper shell 11 is fixedly connected to the massage head lower shell 13 by bolts, and the massage head lower shell 13 and the massage head upper shell 11 can be disassembled for maintenance.
[0034] In this embodiment, specifically: a massage head light plate 12 is installed on the top of the massage head lower shell 13, and the massage head light plate 12 is used for auxiliary lighting.
[0035] In this embodiment, specifically: a conductive post 15 is installed at the bottom of the lower shell 13 of the massage head, and a conductive disk 14 is installed at the bottom of the conductive post 15. The conductive post 15 and the conductive disk 14 are used to realize current conduction.
[0036] In this embodiment, specifically: the lower shell 13 of the massage head is fixedly connected to the top of the upper shell 24 of the dental box.
[0037] In this embodiment, specifically: when the first worm gear 25 and the second worm gear 214 are reset, they drive the massage component 10 to reset.
[0038] In operation, this invention works as follows: When motor 212 rotates, it drives two sets of helical gears to rotate via helical gear engagement. The helical gears, through spur gear transmission, cause the worm to rotate. At this time, spring fixing member 22 holds the worm, and the force of damping spring 23 on the worm is greater than the force between the spur gear and the worm. The worm spirals upward along the internal thread of the spur gear, while the massage head remains stationary. When the worm reaches its highest point, the movement of the top of the worm is restricted. At this point, the force of the damper on the worm is less than the force between the spur gear and the worm, and the worm no longer spirals upward but instead drives the massage head to rotate. When the machine is turned off, motor 212 reverses direction. At this point, the force of the damper on the worm is greater than the frictional force between the spur gear and the worm, and the worm spirals downward along the internal thread of the spur gear. When the worm reaches its lowest point, the fixing plate 27 at the bottom of the worm restricts its downward movement. At this point, the force of the damper on the worm is less than the force between the spur gear and the worm, and the worm no longer spirals downward, and motor 212 stops rotating.
[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A lifting gearbox, comprising a gearbox assembly (20), characterized in that: The gearbox assembly (20) includes a damping slider (21), a spring fixing member (22), a damping spring (23), a gearbox upper shell (24), a first worm gear (25), a first spur gear (26), a fixing plate (27), a first helical gear (28), a gearbox lower shell (29), a motor base (210), a motor (212), a second worm gear (214), a second spur gear (215), a third spur gear (216), and a second helical gear (217); A motor mount (210) is fixedly connected to the inner wall of the lower housing (29) of the gearbox. A motor (212) is installed on the inner wall of the motor mount (210). A first helical gear (28) and a second helical gear (217) are rotatably connected to the inner wall of the lower housing (29). A third spur gear (216) is fixedly connected to the top of the first helical gear (28) and the second helical gear (217). Fixing plates (27) are symmetrically slidably connected to the inner wall of the lower housing (29). A first worm (25) and a second worm (214) are fixedly connected to the top of the two fixing plates (27) respectively. A first spur gear (26) is threadedly connected to the outer wall of the first worm (25). The outer wall of the rod (214) is threaded with a second spur gear (215). The top of the lower shell (29) of the gearbox is fixedly connected to the upper shell (24) of the gearbox by bolts. The inner wall of the upper shell (24) of the gearbox is symmetrically slidably connected with a damping slide member (21). The inner wall of the damping slide member (21) is fixedly connected with a spring fixing member (22). A damping spring (23) is fixedly connected to one side of the spring fixing member (22). When the first spur gear (26) and the second spur gear (215) rotate in opposite directions, they drive the first worm (25) and the second worm (214) to reset. When the first worm (25) and the second worm (214) slide, they are subjected to the same damping force from the spring fixing member (22).
2. The lifting gearbox according to claim 1, characterized in that: The first helical gear (28) and the second helical gear (217) are connected to the motor (212) for transmission, and the first spur gear (26) and the second spur gear (215) are both meshed with the third spur gear (216).
3. A lifting gearbox according to claim 1, characterized in that: A battery (211) is installed on the inner wall of the lower shell (29) of the gearbox.
4. A lifting gearbox according to claim 1, characterized in that: The inner wall of the lower housing (29) of the gearbox is fixedly connected to a motor shaft fixing member (213), and the output shaft of the motor (212) is installed on the inner wall of the motor shaft fixing member (213).
5. A lifting gearbox according to claim 1, characterized in that: The top of the dental box assembly (20) is provided with a massage assembly (10), which includes a massage head upper shell (11) and a massage head lower shell (13). The bottom of the upper shell (11) of the massage head is fixedly connected to the lower shell (13) of the massage head by bolts.
6. A lifting gearbox according to claim 5, characterized in that: The massage head light plate (12) is installed on the top of the lower shell (13) of the massage head.
7. A lifting gearbox according to claim 5, characterized in that: The bottom of the lower shell (13) of the massage head is equipped with a conductive post (15).
8. A lifting gearbox according to claim 5, characterized in that: The lower shell (13) of the massage head is fixedly connected to the top of the upper shell (24) of the dental box.
9. A lifting gearbox according to claim 7, characterized in that: A conductive disk (14) is installed at the bottom of the conductive post (15).
10. A lifting gearbox according to claim 5, characterized in that: When the first worm (25) and the second worm (214) are reset, they drive the massage assembly (10) to reset.