High-efficiency transmission worm shaft for transmission of cervical vertebra massager
By introducing worm shafts, inserts, alloy worms, and transmission bosses into the transmission system of the cervical massager, the problems of worm shaft wear and high maintenance costs are solved, achieving efficient transmission and low-cost operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO XINXIANGDA MOTOR PARTS CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-04-24
AI Technical Summary
The worm shaft used in existing cervical massagers is prone to wear after prolonged use, affecting normal transmission and increasing maintenance costs, resulting in low applicability.
The design incorporates a worm shaft, insert, alloy worm, transmission boss, and retaining ring, combined with a sliding column, adjusting shaft, and locking screw to improve the strength and wear resistance of the worm shaft and allow for easy replacement and length adjustment of the alloy worm.
It improves the wear resistance of the worm shaft, reduces the probability of wear and damage, lowers maintenance costs, and enhances its applicability and economy.
Smart Images

Figure CN224162038U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cervical massager technology, specifically a worm shaft for high-efficiency transmission in a cervical massager. Background Technology
[0002] A neck massager is a device used to relieve neck fatigue, alleviate neck discomfort, and improve blood circulation in the neck. These massagers are typically designed to be fixed around the neck, providing a comfortable massage experience through vibration, massage, and heating. With increasing emphasis on healthy living, neck massagers will continue to see growth. Future neck massagers may become more intelligent and multifunctional, combining biomedical engineering principles and ergonomic design to offer a more personalized and efficient massage experience. Simultaneously, the design and materials of neck massagers will place greater emphasis on comfort, safety, and environmental friendliness, and the internal transmission of neck massagers will likely utilize a worm gear shaft.
[0003] The existing worm shaft transmission structure used in cervical massagers is made of ordinary materials, which is prone to wear after long-term use, affecting the normal transmission inside the cervical massager and thus affecting its normal use. Therefore, we propose a high-efficiency transmission worm shaft for cervical massagers. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency transmission worm shaft for a cervical massager, which has high strength and wear resistance, in order to solve the problem that the transmission structure of the existing worm shaft for cervical massagers is made of ordinary materials, which is prone to wear after long-term use, affecting the normal transmission inside the cervical massager and thus affecting the normal use of the cervical massager.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency transmission worm shaft for a cervical massager, comprising a worm shaft and an alloy worm, wherein a pin is installed at one end of the worm shaft, a transmission boss is installed on the outer surface of the pin, the alloy worm is sleeved on the outer surface of the pin, a limiting seat is installed on the outer surface of the worm shaft near the pin, and a sliding column is inserted at the end of the worm shaft away from the pin.
[0006] Preferably, the inner surface of the alloy worm gear is provided with a clamping groove, the inner surface of the clamping groove is provided with a insertion hole, and the transmission boss is fitted into the insertion hole.
[0007] Preferably, the outer surface of the insert post is provided with a slot near the alloy worm gear, and a retaining ring is installed inside the slot.
[0008] Preferably, a positioning baffle is installed at the end of the sliding column, a connecting column is installed in the middle of one side of the positioning baffle, and a positioning groove is provided at the top of the connecting column.
[0009] Preferably, the sliding column is hexagonal, and the front surface of the sliding column is provided with a scale.
[0010] Preferably, an adjusting shaft is installed inside the worm shaft at the end opposite to the sliding column. The adjusting shaft is sleeved inside the sliding column, and the adjusting shaft and the sliding column are connected by a threaded connection.
[0011] Preferably, a locking screw is screwed onto the top of the worm shaft, and there are three locking screws in total, which are evenly distributed at the top of the worm shaft.
[0012] Preferably, a diagonal brace is installed at the gap between the worm shaft and the limiting seat.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model improves the strength and wear resistance of the worm shaft by incorporating a worm shaft, a stud, and an alloy worm. A stud is provided at one end of the worm shaft, and a transmission boss is provided on the outer surface of the stud. An alloy worm is sleeved on the outer surface of the stud. This solves the problem that the transmission structure of the worm shaft in existing cervical massagers uses ordinary materials, which are prone to wear after long-term use, affecting the normal transmission inside the cervical massager and thus affecting its normal use. This invention reduces the probability of wear and damage to the worm shaft, thereby ensuring the normal use of the cervical massager.
[0015] 2. This utility model achieves convenient maintenance of the worm shaft by setting up a plug, a transmission boss, a retaining ring, and an alloy worm. A plug is set at one end of the worm shaft, a transmission boss is set on the outer surface of the plug, and an alloy worm is sleeved on the outer surface of the plug. A groove is set on the outer surface of the plug near the alloy worm, and a retaining ring is set inside the groove. This solves the problem that the existing worm shaft is set as a whole, which requires the whole to be replaced after wear, resulting in high maintenance costs and poor economic efficiency. This invention reduces the maintenance cost of the worm shaft, thereby improving the economic efficiency of the worm shaft.
[0016] 3. This utility model achieves the effect of adjusting the length of the worm shaft by setting a sliding column, a worm shaft, an adjusting shaft, and a locking screw. A sliding column is inserted into the end of the worm shaft away from the insertion column, and an adjusting shaft is set inside the worm shaft away from the sliding column. The adjusting shaft is sleeved inside the sliding column, and the adjusting shaft and the sliding column are connected by a threaded engagement. This solves the problems of the existing worm shaft having a fixed length, being unable to be adjusted, having low applicability, and poor practicality. It improves the applicability of the worm shaft, thereby improving its practicality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 2 for Figure 1 A magnified structural diagram of A;
[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;
[0020] Figure 4 for Figure 3 A magnified structural diagram of B in the diagram;
[0021] Figure 5 for Figure 3 A magnified structural diagram of C;
[0022] Figure 6 This is a schematic diagram of the main structure of the worm shaft and insert of this utility model;
[0023] Figure 7 This is a schematic diagram of the main structure of the alloy worm gear of this utility model.
[0024] Reference numerals in the attached diagram: 1. Worm shaft; 2. Sliding column; 3. Scale; 4. Alloy worm; 5. Positioning groove; 6. Connecting column; 7. Positioning stop; 8. Adjusting shaft; 9. Diagonal brace; 10. Limit seat; 11. Locking screw; 12. Insertion column; 13. Slot; 14. Retaining ring; 15. Transmission boss; 16. Clamping groove; 17. Insertion hole. Detailed Implementation
[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example 1
[0026] like Figure 1 , Figure 3 and Figure 5-7 As shown, to achieve the above objectives, this utility model provides the following technical solution: a high-efficiency transmission worm shaft for a cervical massager, comprising a worm shaft 1 and an alloy worm 4, wherein a pin 12 is installed at one end of the worm shaft 1, a transmission boss 15 is installed on the outer surface of the pin 12, the alloy worm 4 is sleeved on the outer surface of the pin 12, a limiting seat 10 is installed on the outer surface of the worm shaft 1 near the pin 12, a sliding pin 2 is inserted into the end of the worm shaft 1 away from the pin 12, and the inner surface of the alloy worm 4 is provided with a mounting plate... The clamping groove 16 has an insertion hole 17 on its inner surface. The transmission boss 15 is fitted into the insertion hole 17. The outer surface of the insertion post 12 has a groove 13 near the alloy worm 4. A retaining ring 14 is installed inside the groove 13. A positioning stop 7 is installed at the end of the sliding post 2. A connecting post 6 is installed in the middle of one side of the positioning stop 7. A positioning groove 5 is provided at the top of the connecting post 6. A diagonal brace 9 is installed at the gap between the worm shaft 1 and the limit seat 10. The limit seat 10 is supported by the diagonal brace 9.
[0027] The working principle of the worm shaft for a high-efficiency transmission cervical massager based on Embodiment 1 is as follows: After the present invention is installed, it is connected to the motor through the connecting column 6 and the positioning groove 5. In use, the connecting column 6 drives the sliding column 2 to rotate, which in turn drives the worm shaft 1 to rotate. The worm shaft 1 then drives the alloy worm 4 to rotate, which in turn drives the internal massage mechanism of the cervical massager. If the alloy worm 4 is damaged, the retaining ring 14 is removed, the damaged alloy worm 4 is removed, and a new alloy worm 4 is inserted into the outer surface of the insert column 12. The retaining ring 14 limits the alloy worm 4, allowing the worm shaft 1 to drive the alloy worm 4 to rotate, thereby continuing to drive the internal massage mechanism of the cervical massager. Thus, the working process of this device is completed. Example 2
[0028] like Figure 1-4 As shown, the present invention proposes a high-efficiency transmission worm shaft for a cervical massager. Compared with Embodiment 1, this embodiment further includes: a hexagonal sliding column 2 with a scale 3 on its front surface for easy control of the position of the sliding column 2; an adjusting shaft 8 installed inside the worm shaft 1 at the end opposite to the sliding column 2; the adjusting shaft 8 is sleeved inside the sliding column 2; the adjusting shaft 8 and the sliding column 2 are connected by a threaded connection; and a locking screw 11 is screwed onto the top of the worm shaft 1. There are three locking screws 11, which are evenly distributed at the top of the worm shaft 1, and the sliding column 2 is fixed by the locking screws 11.
[0029] In this embodiment, when the length of the present invention needs to be adjusted, the locking screw 11 is loosened. After that, the adjusting shaft 8 is rotated by a tool, and the adjusting shaft 8 drives the sliding column 2 to move to the side, thereby adjusting the position of the sliding column 2. After that, the locking screw 11 is tightened to fix the sliding column 2, thereby enabling the worm shaft 1 to be used.
[0030] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A high-efficiency transmission worm shaft for a cervical massager, comprising a worm shaft (1) and an alloy worm (4), characterized in that: One end of the worm shaft (1) is fitted with a plug (12), the outer surface of the plug (12) is fitted with a transmission boss (15), the outer surface of the plug (12) is fitted with an alloy worm (4), the outer surface of the worm shaft (1) is fitted with a limit seat (10) on the side of the outer surface of the worm shaft (1) close to the plug (12), and the end of the worm shaft (1) away from the plug (12) is fitted with a sliding column (2).
2. The worm shaft for high-efficiency transmission in a cervical massager according to claim 1, characterized in that: The inner surface of the alloy worm (4) is provided with a clamping groove (16), and the inner surface of the clamping groove (16) is provided with a socket (17). The transmission boss (15) is fitted into the socket (17).
3. The worm shaft for high-efficiency transmission in a cervical massager according to claim 1, characterized in that: The outer surface of the insert (12) near the alloy worm (4) is provided with a slot (13), and a retaining ring (14) is installed inside the slot (13).
4. The worm shaft for high-efficiency transmission in a cervical massager according to claim 1, characterized in that: The sliding column (2) is equipped with a positioning baffle (7) at its end, and a connecting column (6) is installed in the middle of one side of the positioning baffle (7). The top of the connecting column (6) is provided with a positioning groove (5).
5. The worm shaft for high-efficiency transmission in a cervical massager according to claim 1, characterized in that: The sliding column (2) is hexagonal, and the front surface of the sliding column (2) is marked with scale (3).
6. The worm shaft for high-efficiency transmission in a cervical massager according to claim 5, characterized in that: An adjusting shaft (8) is installed inside the worm shaft (1) at one end away from the sliding column (2). The adjusting shaft (8) is sleeved inside the sliding column (2), and the adjusting shaft (8) and the sliding column (2) are connected by a threaded connection.
7. The worm shaft for high-efficiency transmission in a cervical massager according to claim 1, characterized in that: The top of the worm shaft (1) is screwed with a locking screw (11). There are three locking screws (11), and the three locking screws (11) are evenly distributed at the top position of the worm shaft (1).
8. The worm shaft for high-efficiency transmission in a cervical massager according to claim 1, characterized in that: A diagonal brace (9) is installed at the gap between the worm shaft (1) and the limiting seat (10).