Tooth box structure for massager

By employing a gear assembly with a speed ratio of 1:13 in the massager, the problem of poor reducer performance caused by motor drive in existing technologies is solved, achieving greater torque and more stable output, reducing vibration and noise, and extending service life.

CN223969281UActive Publication Date: 2026-03-06GUANGDONG PROVINCE JIE IND CO LTD
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Patent Information

Application Number
CN202423138027.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2026-03-06
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

The existing massager's telescopic structure and vibration function are driven by the same motor, which causes the reducer to be unable to effectively slow down, affecting its service life and output stability.

Method used

The gear assembly includes a pinion, a double gear, and a large gear with a speed ratio of 1:13. Power is transmitted through the gear assembly to provide greater torque and smoother output at low speeds, while reducing vibration and noise.

Benefits of technology

This achieves a smooth output from the massager, reduces vibration and noise, and enhances its lifespan and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tooth box structure for massager relates to health care equipment technical field, including tooth box shell, bottom cover, motor subassembly, gear subassembly and spindle subassembly, the bottom of tooth box shell is connected with bottom cover, the gear set is installed on bottom cover and is located in tooth box shell, the lower end of motor subassembly extends into tooth box shell, and the spindle subassembly is located in the tooth box shell. The output end of the motor assembly is connected with the gear set, the rotating shaft assembly is located on one side of the motor assembly, and the lower end of the rotating shaft assembly extends into the gearbox shell to be connected with the gear set. The small gear, the duplicate gear and the large gear of the gear assembly are meshed in a matched mode, the speed ratio of the gear assembly is 13, the motor assembly can provide larger torque when running at a low speed, stable output can be provided when running, vibration and noise are reduced, and the service life of the motor assembly is prolonged. The speed reducer has the advantages of remarkable speed reduction effect, increased torque, stable operation and the like.
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Description

Technical Field

[0001] This utility model relates to the field of health care equipment technology, and in particular to a dental box structure for a massager. Background Technology

[0002] Most commonly used massagers include both telescopic and vibration functions. The telescopic structure that enables the telescopic function and the vibrator that enables the vibration function are usually driven by the same motor. The motor's rotation directly drives the telescopic structure to rotate and extend. To prevent the telescopic structure from moving too fast due to direct motor drive, a speed reducer is usually installed between the motor and the telescopic structure. However, as consumers' demands for massagers increase, simply adding a speed reducer between the telescopic structure and the motor is no longer sufficient to achieve a good reduction effect, cannot provide a more stable output, and affects the lifespan. Utility Model Content

[0003] The purpose of this utility model is to provide a tooth box structure for a massager, aiming to solve the above-mentioned technical problems. The gear assembly of this utility model includes a small gear, a double gear and a large gear. The speed ratio of the gear assembly is 1:13, which enables the motor assembly to provide greater torque when running at low speed, provide smooth output when running, reduce vibration and noise, and has the advantages of significant deceleration effect, increased torque and smooth operation.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] A massager jaw box structure includes a jaw box shell, a bottom cover, a motor assembly, a gear assembly, and a rotating shaft assembly. The bottom of the jaw box shell is connected to the bottom cover. The gear assembly is mounted on the bottom cover and located inside the jaw box shell. The lower end of the motor assembly extends into the jaw box shell, and the output end of the motor assembly is connected to the gear assembly. The rotating shaft assembly is located on one side of the motor assembly, and the lower end of the rotating shaft assembly extends into the jaw box shell and is connected to the gear assembly.

[0006] Furthermore, the gear assembly has a speed ratio of 13.

[0007] Furthermore, the gear assembly includes a pinion, a double gear, and a large gear. The output end of the motor assembly is connected to the pinion. The pinion has a first helical tooth. The pinion meshes with the upper end of the double gear. The large gear meshes with the lower end of the double gear. One end of the rotating shaft assembly extends into the gearbox housing and is connected to the large gear.

[0008] Furthermore, the double gear includes a second helical gear tooth, a first spur gear tooth, and a connecting shaft. The second helical gear tooth and the first spur gear tooth are both sleeved on the connecting shaft. The second helical gear tooth is located above the first spur gear tooth, and the second helical gear tooth is meshed with the first helical gear tooth.

[0009] Furthermore, the large gear is provided with a second spur tooth, which meshes with the first spur tooth.

[0010] Furthermore, the first helical gear has 10 teeth, the second helical gear of the double gear has 36 teeth, the first spur gear of the double gear has 10 teeth, and the second spur gear has 36 teeth.

[0011] Furthermore, the gearbox housing includes a motor assembly mounting part, a shaft assembly mounting part, and a gear assembly mounting part. The lower end of the motor assembly is located inside the motor assembly mounting part, the lower end of the shaft assembly is located inside the shaft assembly mounting part, and the gear assembly is located inside the gear mounting part.

[0012] Furthermore, the motor assembly includes a drive motor and a reducer, the reducer being located on the output shaft of the drive motor.

[0013] The tooth box structure for this massager has the following beneficial effects:

[0014] 1. The massager's tooth box structure of this utility model is mainly composed of a tooth box shell, a bottom cover, a drive motor and a reducer, a gear assembly and a rotating shaft assembly. The reducer is used to reduce the speed of the drive motor, and the gear assembly transmits the reduced power to the rotating shaft assembly, thereby converting the rotational motion of the gear into linear extension and retraction motion. The overall structure is reasonably designed, has low maintenance costs, is suitable for long-term stable use, and is highly practical.

[0015] 2. The massager of this utility model uses a gearbox structure. The gear assembly has a speed ratio of 13, which means that the output speed of the motor assembly is 13 of the input speed. This deceleration effect allows the motor assembly to provide greater torque when running at low speed, and allows the motor assembly to provide stable output during operation, reducing vibration and noise. It has the advantages of significant deceleration effect, increased torque and stable operation.

[0016] 3. The massager of this utility model has a gear assembly including a small gear, a double gear and a large gear. Through the meshing motion between the small gear, the double gear and the large gear, the power output by the motor assembly is transmitted to the rotating shaft assembly, thereby realizing the telescopic action. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a structural breakdown diagram of the present invention. Figure 1 ;

[0019] Figure 3 This is a structural breakdown diagram of the present invention. Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the structure of the motor assembly and gear assembly of this utility model;

[0021] The following are the labels in the diagram: 1. Gearbox housing; 2. Bottom cover; 3. Motor assembly; 4. Gear assembly; 5. Shaft assembly; 6. Drive motor; 7. Pinion; 8. Double gear; 9. Large gear; 10. First helical gear tooth; 11. Second helical gear tooth; 12. First spur gear tooth; 13. Second spur gear tooth; 14. Motor assembly mounting part; 15. Shaft assembly mounting part; 16. Gear assembly mounting part; 17. First assembly part; 18. Second assembly part; 19. Upper insertion platform; 20. Lower insertion platform; 21. Lower connecting platform; 22. First rotating groove; 23. Second rotating groove; 24. Rotating shaft; 25. Movable bolt; 26. Guide shaft; 27. Second connecting shaft. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the product of this utility model will be further described in detail below with reference to the embodiments and accompanying drawings.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[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 "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figure 1 and Figure 2As shown, a massager toothbox structure includes a toothbox shell 1, a bottom cover 2, a motor assembly 3, a gear assembly 4, and a rotating shaft assembly 5. The bottom of the toothbox shell 1 is connected to the bottom cover 2. The gear assembly is mounted on the bottom cover 2 and located inside the toothbox shell 1. The lower end of the motor assembly 3 extends into the toothbox shell 1, and the output end of the motor assembly 3 is connected to the gear assembly. The rotating shaft assembly 5 is located on one side of the motor assembly 3, and the lower end of the rotating shaft assembly 5 extends into the toothbox shell 1 and is connected to the gear assembly.

[0026] like Figure 2 As shown, the motor assembly 3 includes a drive motor 6 and a reducer. The reducer is located on the output shaft of the drive motor 6 and is used to reduce the rotational speed of the drive motor 6. The gear assembly 4 transmits the reduced power to the shaft assembly 5, thereby converting the rotational motion of the gear into linear telescopic motion. This embodiment, by providing a reducer on the drive motor 6, can meet the basic torque and speed requirements of the equipment through speed reduction, avoiding the problem of excessive speed that might fail to meet production needs if directly driven by the motor.

[0027] like Figure 3 and Figure 4 As shown, the gear assembly 4 includes a pinion 7, a double gear 8, and a large gear 9. The output end of the motor assembly 3 is connected to the pinion 7. The pinion 7 is provided with a first helical tooth 10. The pinion 7 is meshed with the upper end of the double gear 8. The large gear 9 is meshed with the lower end of the double gear 8. One end of the rotating shaft assembly 5 extends into the gearbox housing 1 and is connected to the large gear 9.

[0028] like Figure 3 and Figure 4 As shown, the gear assembly 4 has a speed ratio of 13. If the ratio is lower than this value, the massager will not be able to provide a large torque, and if the ratio is higher than this value, the massager will not be able to provide a good stable effect.

[0029] It should be noted that the gear assembly 4 of this utility model has a speed ratio of 13, which means that the output speed of the motor assembly 3 is 13 of the input speed. This deceleration effect allows the motor assembly 3 to provide greater torque when running at low speed, and allows the motor assembly 3 to provide smooth output during operation, reducing vibration and noise. It has the advantages of significant deceleration effect, increased torque and smooth operation.

[0030] like Figure 4 As shown, the double gear 8 includes a second helical gear 11, a first straight gear 12, and a connecting shaft. The second helical gear 11 and the first straight gear 12 are both sleeved on the connecting shaft. The second helical gear 11 is located above the first straight gear 12, and the second helical gear 11 is meshed with the first helical gear 10.

[0031] like Figure 4 As shown, the large gear 9 is provided with a second spur tooth 13, which meshes with the first spur tooth 12.

[0032] It should be noted that the first helical gear 10 has ten teeth, the second helical gear 11 of the double gear 8 has thirty-six teeth, the first spur gear 12 of the double gear 8 has ten teeth, and the second spur gear 13 has thirty-six teeth.

[0033] According to the calculation method of gear ratio: A = driven tooth / driving tooth, B = A1 * A2, in this embodiment, the second spur tooth 13 and the second helical tooth 11 of the double gear 8 are both driven teeth, and the first helical tooth 10 and the first spur tooth 12 of the double gear 8 are both driving teeth. Thus, A1 = 36 / 10, A2 = 36 / 10, B = 3.6 * 3.6 = 13, and a speed ratio of 13 can be achieved.

[0034] like Figure 2 As shown, the gearbox housing 1 includes a motor assembly mounting part 14, a shaft assembly mounting part 15, and a gear assembly mounting part 16. The lower end of the motor assembly 3 is located inside the motor assembly mounting part 14, the lower end of the shaft assembly 5 is located inside the shaft assembly mounting part 15, and the gear assembly 4 is located inside the gear mounting part.

[0035] like Figure 2 As shown, the outer shell 1 of the gearbox is also provided with a plurality of first assembly parts 17, each of which has a first assembly hole. The bottom cover 2 is provided with a plurality of second assembly parts 18, each of which has a second assembly hole. Fasteners are used to pass through the second assembly holes and the first assembly holes to secure the connection between the outer shell 1 of the gearbox and the bottom cover 2. The bottom cover 2 serves to protect the interior of the gearbox.

[0036] like Figure 2 and Figure 3 As shown, the outer shell 1 of the dental gearbox is also provided with an upper insertion platform 19 and an upper connecting platform. The upper insertion platform 19 is located at a certain position on the upper connecting platform. The bottom cover 2 is also provided with a lower insertion platform 20 and a lower connecting platform 21. During installation, the upper insertion platform 19 is connected to the lower insertion platform 20, and the upper connecting platform is connected to the lower connecting platform 21, which further improves the tightness and stability of the connection between the outer shell 1 of the dental gearbox and the bottom cover 2.

[0037] like Figure 2 As shown, the bottom cover 2 is also provided with a first rotating groove 22 and a second rotating groove 23, and the lower end of the connecting shaft passing between the second helical gear tooth 11 and the first straight gear tooth 12 can be located in the first rotating groove 22.

[0038] like Figure 1 and Figure 2As shown, the rotating shaft assembly 5 includes components such as a rotating shaft 24, a movable bolt 25, and a guide shaft 26. The rotation of the large gear 9 drives the rotating shaft 24 to rotate, allowing the movable bolt 25 to move up and down along the spiral guide groove on the rotating shaft 24, which in turn causes the guide shaft 26 to move up and down, achieving the telescopic function. The rotating shaft assembly 5 in this embodiment is prior art and will not be described in detail here.

[0039] like Figure 2 and Figure 3 As shown, the upper end of the large gear 9 is connected to a second connecting shaft 27. The upper end of the second connecting shaft 27 is inserted into the rotating shaft 24. The rotation of the large gear 9 drives the second connecting shaft 27 to rotate, and the rotation of the second connecting shaft 27 drives the rotating shaft 24 to rotate.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A tooth box structure for a massager, characterized by: The utility model relates to a gear box, including the gear box shell (1), the bottom cover (2), the motor assembly (3), the gear assembly (4) and the rotating shaft assembly (5), the bottom of gear box shell (1) is connected with bottom cover (2), the gear assembly is installed on bottom cover (2) and is located in gear box shell (1), the lower end of motor assembly (3) goes into gear box shell (1) and the output end of motor assembly (3) is connected with the gear assembly, the rotating shaft assembly (5) is located in one side of motor assembly (3), and the lower end of rotating shaft assembly (5) goes into gear box shell (1) and is connected with the gear assembly.

2. The massager's cabinet structure according to claim 1, characterized by: The gear ratio of the gear assembly (4) is 13.

3. The massager's cabinet structure according to claim 2, characterized in that: The gear assembly (4) includes a pinion (7), a double gear (8) and a large gear (9), the output end of the motor assembly (3) is connected with the pinion (7), the pinion (7) is provided with a first inclined gear (10), the pinion (7) is meshed and connected with the upper end of the double gear (8), the large gear (9) is meshed and connected with the lower end of the double gear (8), one end of the rotating shaft assembly (5) goes into the gear box shell (1) and is connected with the large gear (9).

4. The massager cabinet structure according to claim 3, characterized by: The double gear (8) includes a second inclined gear (11), a first straight gear (12) and a connecting shaft, the second inclined gear (11) and the first straight gear (12) are both sleeved on the connecting shaft, the second inclined gear (11) is located above the first straight gear (12), and the second inclined gear (11) is meshed and connected with the first inclined gear (10).

5. The massager cabinet structure according to claim 4, characterized by: The large gear (9) is provided with a second straight gear (13), and the second straight gear (13) is meshed and connected with the first straight gear (12).

6. The massager cabinet structure according to claim 5, characterized by: The number of teeth of the first inclined gear (10) is 10, the number of teeth of the second inclined gear (11) of the double gear (8) is 36, the number of teeth of the first straight gear (12) of the double gear (8) is 10, and the number of teeth of the second straight gear (13) is 36.

7. The massager's cabinet structure according to claim 1, characterized by: The gear box shell (1) includes a motor assembly mounting portion (14), a rotating shaft assembly mounting portion (15) and a gear assembly mounting portion (16), the lower end of the motor assembly (3) is located in the motor assembly mounting portion (14), the lower end of the rotating shaft assembly (5) is located in the rotating shaft assembly mounting portion (15), and the gear assembly (4) is located in the gear mounting portion.