Small bandage type acupuncture point physical massage cake

Abstract

The invention provides a small bandage type acupoint physical massage cake which comprises bandages, a shell, a motor, a reduction gear set, a circuit board, a battery and a telescopic device, the bandages are fixed to the two ends of the shell respectively, the circuit board in the shell controls the rotating speed of the motor, the reduction gear set reduces the kinetic energy rotating speed and improves torque to drive the telescopic device to work, an open hole is formed in one face of the shell, and the shell is provided with a through hole. And the massage head of the telescopic device can extend out of the opening of the shell. By implementing the embodiment of the invention, manual reaction force application required by traditional acupoint massage can be changed, meanwhile, the overall size of the massage cake is controlled, and the overall size of the massage cake is remarkably reduced by applying the combination of the small high-speed motor and the reduction gear set.

Description

Technical Field

[0001] This invention relates to the assembly process and usage method of small strap-type acupoint physical massage discs. Technical Background

[0002] By stimulating and massaging specific acupoints, the body releases endorphins, natural pain relievers that can block the transmission of pain signals to the brain, thus relieving headaches, migraines, toothaches, menstrual cramps, neck and shoulder pain, and lower back pain.

[0003] Existing techniques for acupoint stimulation include static fixation, hot compresses, electrotherapy, and physical impact.

[0004] Static fixation emphasizes pain-to-pain approach; when acupoints and muscles are deformed and indented, the muscles are not easily relieved effectively.

[0005] Hot compresses and electrotherapy are common and similar bandages are used for fixation; however, the stimulation area is large, the accurate location of acupoints and points is ignored, and the therapeutic effect is long-lasting.

[0006] Physical impact; physical impact refers to external stimulation, such as manual massage, nail plate jumping, and physical massage device massage. Manual massage and nail plate jumping are time-consuming and laborious. Existing acupoint physical massage devices have the problem of being too large in structure, making it almost impossible to lie flat when using the device. Most of the devices also cannot focus on acupoints and points. The fundamental reason is that physical massage devices require sufficient internal space to design a motor system. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the defects of the prior art, reduce the overall size of the acupoint physical massager, and combine it with the strap-type usage method, while balancing the torque output problem of the reduced massager, so as to provide a new type of strap-type small acupoint physical massage disc that is small in size, can perform single-point massage on acupoints, is easy to carry, and meets the needs of users.

[0008] A small acupressure massage patty, comprising the following steps.

[0009] A small strap-type acupoint physical massage cake includes: a strap, a shell, a motor, a reduction gear set, a circuit board, a battery, and a telescopic device. The shell is fixed with straps at both ends. The circuit board inside the shell electrically controls the speed of the motor. The motor is meshed with the gear set. The reduction gear set reduces the kinetic energy speed and increases the torque to drive the telescopic device. The upper surface of the shell is provided with an opening, through which the massage head of the telescopic device can extend.

[0010] Preferably, the basic outline of the shell is a cylinder, and the top or bottom edge is rounded.

[0011] As a preferred option, the housing surface where the massage head of the telescopic device is located is made of soft rubber.

[0012] As a preferred option, the main body of the strap is made of flexible webbing material.

[0013] Preferably, the two ends of the housing are provided with fixing points that have the same structure and are mirror-symmetrical with respect to the center of the housing, for fixing the two ends of the housing with straps.

[0014] As a preferred option: a built-in rechargeable lithium battery with a charging port on the casing.

[0015] As a preferred option: the circuit board controls the motor speed, and the outer casing has an integrated speed control roller or separate increase / decrease keys.

[0016] Preferably, the reduction ratio of the reduction gear set can be selected in the range of 10:1 to 100:1.

[0017] As a preferred option: when the massage disc is in operation, the massage head of the telescopic device is perpendicular to the opening surface of the housing and makes a reciprocating motion.

[0018] Preferably, the reciprocating stroke of the massage head of the telescopic device is between 6 mm and 16 mm.

[0019] As a preferred option, the bottom surface of the housing where the massage head of the telescopic device is located is taken as the bottom surface, and the height of the housing ranges from 30 mm to 60 mm.

[0020] The present invention has the following beneficial effects.

[0021] The strap design changes the traditional acupoint massage that requires manual reaction force. At the same time, the overall size of the massage disc is controlled by using a reduction gear set with an inverted design. This increases torque while changing the orientation of the output shaft. Combined with the characteristics of the eccentric bearing telescopic mechanism, the overall size of the physical hammer-type acupoint massager is reduced. It is compactly installed within the circumference of the shell. The disc-shaped structure is easy to hold and can massage acupoints at a single point. The structure is small in size and easy to carry. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0024] Figure 3 This is a schematic diagram of the internal explosion of the present invention.

[0025] Figure 4 This is a schematic diagram of the telescopic device of the present invention.

[0026] Figure 5 This is a schematic diagram of the motor and reduction gear set of the present invention.

[0027] In the diagram: 12 - housing (composed of base and cover), 17 - telescopic device (composed of massage head, sliding link, bearing frame, and eccentric bearing).

[0028] In the diagram: 10-Strap, 12-House, 13-Motor, 14-Reduction gear set, 15-Circuit board, 16-Battery, 17-Telescopic device, 18-Base, 19-House cover, 20-Hook-type buckle, 21-Groove, 22-Notch, 23-Female buckle, 24-Female buckle, 26-USB interface, 27-Add button, 28-Decrease button, 29-Output shaft, 30-Massage head, 31-Sliding link, 32-Bearing bracket, 33-Eccentric bearing, 34-Eccentric bearing hole, 35-Sliding guide hole, 36-Bolt, 37-Retaining ring. Detailed Implementation

[0029] like Figure 1 , Figure 3 , Figure 4 As shown, a small acupoint massage cake with a strap includes: a strap 10, a shell 12, a motor 13, a reduction gear set 14, a circuit board 15, a battery 16, and a telescopic device 17.

[0030] like Figure 1 As shown, the massage disc shell 12 is made of rubber or more commonly silicone, TPE / TPR and other soft rubber. TPE / TPR is preferred as it is the most commonly used environmentally friendly and non-toxic material with a delicate feel. The soft rubber shell can effectively cushion the impact of accidental drops or impacts. It is soft, skin-friendly and usually has a warm and smooth texture, unlike hard plastic which is cold and hard.

[0031] like Figure 1 , Figure 2 As shown, each end of the housing 12 is fixed with a strap 10. The straps are made of flexible webbing material, such as high-elastic nylon, polyester, or composite webbing, to ensure adaptive wrapping and comfortable fit for the limb. The straps 10 at both ends are folded and wrapped around the fixing ring 37. The fixing ring 37 is embedded inside the base 18 of the housing 12. The housing cover 19 is fixed to the side groove 21 of the housing base 18 by a hook-type buckle 20. The straps 10 extend from the wrapping point of the fixing ring 37 through the symmetrical notches 22 at both ends of the housing to the outside. The symmetrical design of the straps 10 makes it easy for the massage pad to wrap the limb evenly. The left and right ends of the straps 10 are respectively equipped with a male buckle 23 and a female buckle 24. The female buckle 24 is fixed to the strap 10 in a U-shape. The position of the female buckle 24 on the strap 10 can be adjusted by sliding. When the male buckle 23 and the female buckle 24 are engaged and locked at both ends of the straps 10, they can flexibly adapt to limbs of different circumferences.

[0032] like Figure 1 , Figure 3As shown, the internal circuit board 15 of the housing is powered by the battery 16. The battery 16 is a lithium battery that can store energy. The lithium battery 16 has the following specifications: length 30 mm, width 15 mm, and height 15 mm. The advantages of the lithium battery 16 are its high energy density, which can provide a long-lasting power supply in a compact size, convenient charging, and other characteristics. The lithium battery 16 is placed on the other side of the reduction gear set 14 opposite to the motor 13. The slot is fixed to the bottom of the housing. The circuit board 15 is placed at the angle between the motor 13 and the reduction gear set 14. The circuit board 15 integrates the charging management circuit and the USB interface 26. The USB interface 26 is fixed to the end of the board by soldering and is aligned with the opening of the housing 12. Its port part is exposed outside the housing.

[0033] like Figure 1 ,like Figure 3 As shown, the internal circuit board 15 of the housing 12 electrically controls the speed of the motor 13. The housing 12 is provided with an integrated speed control roller or separate increase and decrease keys. For example, separate increase key 27 and decrease key 28 are provided on the outside of the housing 12. The operation signal is transmitted to the built-in control circuit board 15. After the onboard speed control circuit processes the signal, it controls the speed of the motor 13 by generating a PWM signal.

[0034] like Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the structural dimensions of the massage disc's housing 12 are largely determined by the volume of its internal motor 13. To meet the final output torque requirements within an extremely compact space, this design employs a high-speed, high-power-density small brushless motor 13 as the power source, coupled with a gear reduction set 14 mechanism, to convert the high-speed kinetic energy of the motor 13 into high torque output, thereby achieving miniaturization of the massage disc. For example, a high-speed brushless motor 13 with dimensions of 30 mm × 20 mm has the following output parameters under rated operating conditions: speed 30000 RPM, torque 2 mN·m. This output is converted via a gear reduction set 14 with a reduction ratio of 50:1 and a transmission efficiency >90%. The output shaft 29 of the final gear reduction set 14 can provide a continuous torque of not less than 90 mN·m, reducing the speed to 600 RPM to drive the reciprocating motion of the massage head 30 of the telescopic device 17, achieving a balance between performance and size.

[0035] like Figure 2 , Figure 4 , Figure 5As shown, to match the high-speed, low-torque output characteristics of the small brushless motor 13, and simultaneously provide the required drive torque for the reciprocating motion of the massage head 30 of the telescopic device 17, the design can employ an optional reduction gear set 14 with a reduction ratio range of 10:1 to 100:1. This reduction ratio range design can satisfy torque conversion and amplification within a limited space. Taking the brushless motor 13 with a rated speed of 30,000 RPM as an example: when using a 10:1 reduction ratio, the system output speed is approximately 3,000 RPM, and the output torque is correspondingly increased. This configuration can generate high-frequency vibration characteristics, suitable for rapid relaxation and soothing of the acupoint surface; when using a 100:1 reduction ratio, the system output speed is approximately 300 RPM. RPM, while achieving a significant increase in output torque, can generate low-speed force stimulation, which is more suitable for impacting acupoints and deep muscle tissue. In the experiment, the two reduction ratios did not significantly change the external structure of the reduction gear set 14. By changing the gear arrangement structure and number, it should be noted that the above two reduction ratio configurations are only typical examples to illustrate the applicable range of this solution. In fact, the transmission ratio selected within this reduction ratio range can enable the same massage disc to achieve relaxation and muscle stimulation.

[0036] like Figure 1 , Figure 3 , Figure 5 As shown, inside the housing 12, the motor 13 and the reduction gear set 14 are meshed. The reduction gear set 14 and the motor 13 are fixed to the bottom of the housing 12 by bolts 36. In order to maximize the internal space of the massage cake, the motor 13 and the reduction gear set 14 are arranged in reverse. The output shaft of the motor 13 directly drives the reduction gear set 14. After multiple stages of transmission, the output shaft 29 of the final reduction gear set 14 is opposite to the input shaft of the motor 13 and is located on one side of the motor 13. This structure makes full use of the space of the circular housing 12 of the massage cake and fixes the drive system to the inner circumference of the housing 12.

[0037] like Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, the reduction gear set 14 reduces the kinetic energy speed and increases the torque to drive the telescopic device 17. The output shaft 29 of the reduction gear set 14 is an eccentric shaft 29 to prevent slippage during torque transmission. The telescopic device 17 consists of an eccentric bearing 33, a bearing bracket 32, a sliding connecting rod 31, and a massage head 30. The eccentric shaft 29 of the reduction gear set 14 is inserted into the hole 34 of the fixed eccentric bearing 33. The bearing bracket 32 ​​encloses the eccentric bearing 33 and is hinged to the sliding connecting rod 31. The sliding connecting rod 31 passes through a sliding guide hole 35 opened on the housing. The sliding guide hole 35 is located on the upper surface of the housing 12 and the cover 19. The massage head 30 is fixed to the end of the sliding link 31 and is centered on the surface of the housing 19 and perpendicular to the upper surface of the housing 19. The working principle is as follows: the bearing bracket 32 ​​converts the rotational kinetic energy of the eccentric shaft 29 into planar oscillation with a specific trajectory. The sliding link 31, through its multi-degree-of-freedom hinge characteristics, compensates for and converges the non-axial composite motion transmitted from the bearing bracket 32 ​​to the target extension and retraction direction. Under the geometric constraints of the sliding guide hole 35, the sliding link 31 further converts the directional motion into pure axial reciprocating linear motion. The axis of the sliding guide hole 35 is perpendicular to the upper surface of the housing 19, ensuring accurate transmission of massage force and consistency of experience.

[0038] like Figure 2 , Figure 4 As shown, the eccentric bearing 33 mechanism is more compact in the massage disc design compared to the crank-slider mechanism, and it meets the design intention of reducing the size of the housing. The reciprocating linear motion stroke of the massage head 30 depends on the size of the eccentric bearing 33 and the position of the eccentric bearing hole 34. However, the massage disc is a strap-on type, designed to fit the skin. When the massage disc strap 10 is fixed to the limb, after removing the reaction force of the massage disc due to the deformation of the strap 10 and the degree of skin deformation and indentation, the maximum safe reciprocating linear motion stroke of the massage head 30 is 16 mm. This stroke will not cause blockage of the massage disc's working structure or abnormal pain in the limb, and it is within the maximum acceptable range of the eccentric bearing 33 design. The above data is based on the current bearing design parameters and experimentally derived from the stroke range of the massage head 30. The smallest bearing currently available has an inner diameter hole of 1 mm and an outer diameter and total thickness of 3 mm. The actual inner diameter is determined by two key factors: first, to provide the necessary space for the structural layout of the eccentric bearing hole 34; and second, to ensure that the mounting area of ​​the eccentric bearing 33 has sufficient wall thickness to effectively resist stress concentration and ensure structural strength. Experiments have shown that the minimum bearing used in the massage disc is: inner diameter hole 9 mm, outer diameter total thickness 12 mm, eccentricity 3 mm, eccentric shaft 29 diameter 1 mm. The massage head 30 can effectively meet the needs of light massage, and the minimum reciprocating linear motion of the massage head 30 has a travel of 6 mm.

[0039] like Figure 1 , Figure 2 , Figure 4As shown, taking into account the total height of the internal telescopic device 17, the wall thickness of the outer shell 12, the assembly clearance, and the grip experience, the total height of the massage disc shell 12 is strictly designed and controlled to be below 60 mm. This size ensures both grip comfort and visual harmony of the massage disc while realizing the internal mechanism layout. For example, the minimum distance between the telescopic device 17 and the bottom of the base 18 of the shell 12 when reciprocating is 2 mm; the minimum distance between the bearing bracket 32 ​​and the bottom of the base 18 of the shell 12 is 2 mm; the thickness of the base 18 of the shell 12 is 3 mm; the height of the bearing bracket 32 ​​is 30 mm (bearing: inner diameter hole 20 mm, outer diameter and total thickness 26 mm, ensuring the maximum stroke of the massage head 30 is 16 mm); the length of the sliding link 31 is 18 mm (with the maximum safe stroke of the massage head 30 being 16 mm); and the height of the massage head 30 is 6 mm (the massage area is not affected by the height). Calculation shows that (2+3+30+18+6) < 60 mm, with the maximum safe stroke of the massage head 30 being 16 mm. Taking mm as an example, when the massage head 30 retracts to a height not higher than the shell cover 19 of the housing 12, the height of the housing 12 is designed to be below 60 mm (this scheme increases the fixed distance between the reduction gear set and the bottom of the housing to ensure the height of the output shaft and the bearing bracket, and avoid telescopic collision). Through experiments, when the minimum stroke of the reciprocating linear motion of the massage head 30 is 6 mm, the bearing bracket 32 ​​is 14 mm high and the sliding connecting rod 31 is 8 mm long, the minimum design height of the housing 12 is above 30 mm (this scheme does not require measuring the height of the massage head, the massage head adopts external telescopic, because the telescopic distance is limited, the massage cake will deform and sink when it comes into contact with the skin, and the strap has extensibility).

[0040] The above-described embodiments are merely one implementation of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this invention should be determined by the appended claims.

Claims

1. A small, strap-on acupressure massage disc, comprising: The device comprises straps, a housing, a motor, a reduction gear set, a circuit board, a battery, and a telescopic device. Straps are fixed at both ends of the housing. The circuit board inside the housing electrically controls the speed of the motor. The motor is connected to the gear set by gear meshing. The reduction gear set reduces the kinetic energy speed and increases the torque to drive the telescopic device. An opening is provided on the upper surface of the housing, through which the massage head of the telescopic device can extend.

2. The small, strap-on acupoint massage disc according to claim 1, characterized in that: The basic outline of the shell is a cylinder, with rounded corners at the top or bottom edges.

3. The small, strap-on acupoint massage disc according to claim 2, characterized in that: The casing of the telescopic massage head is made of soft rubber.

4. The small, strap-on acupoint massage disc according to claim 1, characterized in that: The main body of the strap is made of flexible webbing material.

5. The small, strap-on acupoint massage disc according to claim 2, characterized in that: The shell has fixed points with the same structure at both ends, which are mirror-symmetrical with respect to the center of the shell, for fixing the shell with straps at both ends.

6. The small, strap-on acupoint massage disc according to claim 2, characterized in that: It has a built-in rechargeable lithium battery and a charging port on the casing.

7. The small, strap-on acupoint massage disc according to claim 2, characterized in that: The circuit board controls the motor speed, and the external housing has an integrated speed control roller or separate increase / decrease keys.

8. The small strap-type acupoint physical massage cake according to claim 1, characterized in that: The reduction ratio of the internal reduction gear set can be selected from 10:1 to 100:

1.

9. The small, strap-on acupoint massage disc according to claim 1, characterized in that: When the massage disc is in operation, the massage head of the telescopic device is perpendicular to the opening surface of the housing and makes a reciprocating motion.

10. The small, strap-on acupoint massage disc according to claim 1, characterized in that: The reciprocating stroke of the telescopic massage head ranges from 6 mm to 16 mm.

11. The small strap-type acupoint physical massage cake according to claim 2, characterized in that: With the extended surface of the housing where the massage head of the telescopic device is located as the bottom surface, the height of the housing ranges from 30 mm to 60 mm.

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