Neck massager

Abstract

The invention belongs to the technical field of medical apparatus and instruments, and particularly relates to a neck massager which comprises an arc-shaped cavity shell, and a guide hole is formed in the concave portion of the shell; the interval adjusting unit is arranged in the cavity of the shell and comprises a driving assembly, a guide rail and two moving blocks, the guide rail is fixed to the shell, the two moving blocks slide in the guide rail, the sides, facing the guide holes, of the two moving blocks are each provided with a massage head set, and the driving assembly is used for driving the two moving blocks to synchronously and reversely move; the force adjusting unit comprises an air inflation assembly, a moving plate, a supporting frame and a telescopic air cylinder, the supporting frame is fixedly connected with the moving block, the moving plate is slidably connected into the supporting frame, one side of the moving plate is connected with the massage head set through a connecting column, the other side of the moving plate is connected to the telescopic end of the telescopic air cylinder, and an air inlet of the telescopic air cylinder communicates with an air outlet pipe of the air inflation assembly; the two ends of the movable plate are fixedly connected with the supporting frame through first springs correspondingly. The device can dynamically massage a patient and adjust the massage strength, and the massage effect is improved.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a neck massager. Background Technology

[0002] In recent years, with the widespread use of electronic products, the incidence of neck diseases has increased significantly. People often only use massagers to relax their muscles when they feel neck discomfort. Over time, this greatly increases the incidence of straightening of the cervical spine, neck stiffness, and cervical spine diseases. Neck massagers have emerged as a response to this need, and their designs are often complex.

[0003] However, most neck massagers on the market primarily rely on mechanical traction and fixed-point massage, especially wearable neck massagers. Most wearable neck massagers require pre-adjustment of the massage head's position, and the massage head remains in a fixed position during the massage, with the massage intensity remaining essentially constant. This fails to provide a comprehensive neck massage or allow for flexible adjustment of the massage intensity, making it difficult to adapt to the different needs of patients and affecting the treatment effect. For example, patent CN114681293A discloses a neck massager that connects the massage head to a slider assembly, allowing the massage head to slide with the slider assembly, adjusting the massage range and position. The massage head's position remains unchanged during the massage, and the massage assembly passively conforms to the neck due to the deformation of the support. While this device allows for adaptive adjustment of the massage head's position and massage intensity by adjusting the shape of the support before use, the massage head's position remains unchanged during the massage, and the massage intensity depends on the deformation of the support. Since the support's deformation is flexible, the massage intensity is easily affected by vibrations during the massage, making it impossible to freely adjust the massage intensity. For example, the patent with publication number CN114073639A discloses a neck massager in which the massage head is always in the middle of the support during use. Although the device has a connecting column between the massage head and the support to create a gap between the massage part and the support, which provides a space for the massage part to make swaying movements and can provide a strong patting massage effect to the user's massage area, its fixed position makes it unable to adapt to different users' neck massage needs. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the purpose of this invention is to provide a neck massager that can freely adjust the neck massage area and massage intensity according to the different needs of the patient during the neck massage process, thus making it more adaptable.

[0005] The technical solution of this invention is: A neck massager includes a massage head assembly, and further includes: The shell has an arc-shaped cavity structure, and a guide hole is provided in the recess of the shell; The spacing adjustment unit is disposed in the cavity of the housing and includes a drive assembly, a guide rail and two moving blocks. The guide rail is arc-shaped and fixed to the housing, and the guide rail is directly opposite the guide hole. The two moving blocks slide in the guide rail. Each of the two moving blocks is equipped with a massage head assembly on the side facing the guide hole. The output end of the drive assembly is connected to the two moving blocks to drive the two moving blocks to move synchronously in opposite directions. Two force adjustment units correspond one-to-one with two moving blocks. Each force adjustment unit includes an inflation assembly, a connecting column, a moving plate, a support frame, a first spring, and a telescopic air cylinder. The support frame is fixedly connected to the moving blocks. The moving plate is slidably connected within the support frame. One side of the moving plate is connected to the massage head assembly via the connecting column, and the other side is connected to the telescopic end of the telescopic air cylinder. The telescopic air cylinder is fixed to the support frame, and its air inlet is connected to the air outlet of the inflation assembly. Both ends of the moving plate are fixedly connected to the support frame via the first spring, and the extension direction of the first spring is parallel to the movement direction of the moving plate.

[0006] Preferably, the driving component includes: A toothed strip is wrapped around the side of the guide rail facing the guide hole, and the toothed strip is slidably connected to the side wall of the guide rail. The two moving blocks are respectively fixed on the upper and lower sides of the toothed strip. Two transmission gears are respectively disposed on both sides of the toothed strip. The transmission gears mesh with the toothed strip, and the transmission gears are rotatably connected to the housing through a rotating shaft. A rotary driver having an output shaft that is coaxially fixed to one of the transmission gears.

[0007] Preferably, the inflation assembly includes: A piston frame having a closed chamber is installed inside the housing, and the air outlet of the piston frame is connected to the air outlet pipe; The piston plate is slidably connected to the piston frame, and the periphery of the piston plate is tightly fitted with the side wall of the piston frame. A threaded column is inserted through the piston frame on the side wall away from the outlet. One end of the column is rotatably connected to the piston plate, and the other end extends to the outside of the piston frame and is fixedly connected to a knob. A threaded sleeve is fitted onto the threaded post, and the threaded sleeve is fixedly connected to the side wall of the piston frame.

[0008] Preferably, a compression airbag is provided on one side of the moving block perpendicular to its moving direction. One side of the compression airbag is fixedly connected to the moving block, and the other side is fixedly connected to the housing through a baffle. The compression airbag is connected to a spherical airbag through an air supply pipe. A limiting frame is wrapped around the outside of the spherical airbag. The limiting frame has two fixed base plates and a movable base plate. The spherical airbag is located between the fixed base plates and the movable base plate. The fixed base plate is fixedly connected to the limiting frame and connected to one end of a connecting column. The movable base plate slides within the limiting frame and is connected to the massage head assembly. A second spring is provided between the movable base plate and the fixed base plate.

[0009] Preferably, the limiting frame is connected to the massage head assembly on the side opposite to the connecting post, and the massage head assembly is composed of multiple massage units, each massage unit including: The outer casing is fixedly connected to the limiting frame; A short column, one end of which is fixedly connected to the movable base plate, and the other end of which penetrates the side wall of the outer shell and enters the outer shell, and the short column is slidably connected to the outer shell; A massage column, one end of which is placed inside the outer shell and fixed to the short column, and the other end protruding from the side wall of the outer shell away from the short column; The massage head is fixedly connected to one end of the massage column that protrudes from the housing; A guide assembly, disposed between the massage column and the housing, is used to rotate the massage column while the movable base plate pushes the massage column to move.

[0010] Preferably, the guide assembly includes a fixing sleeve and a limiting block. The fixing sleeve is a cylindrical sleeve that is fitted and fixed onto the massage column. A spiral guide groove is formed along the axial direction on the outer side wall of the fixing sleeve. One end of the limiting block is placed in the spiral guide groove, and the other end is fixed to the side wall of the outer shell. A third spring is fitted onto the massage column. One end of the third spring abuts against the fixing sleeve, and the other end abuts against the side wall of the outer shell.

[0011] Preferably, an airbag massage unit is respectively provided in the recess of the housing at both ends of the guide hole, and the airbag massage unit includes: A slide rail is fixed inside the housing, and a sliding column is slidably connected inside the slide rail; The connecting rod has one end fixedly connected to the sliding column, and the other end passes through the side hole reserved on the side wall of the housing and is fixedly connected to a fixing ring. An airbag roller is fitted onto the side wall of the fixed ring away from the connecting rod, and the airbag roller is rotatably connected to the fixed ring; A reciprocating drive assembly is used to drive the slide column to achieve up-and-down reciprocating motion within the slide rail.

[0012] Preferably, the reciprocating drive component includes: An electric rotary machine is fixed inside the housing; The first gear is mounted and fixed on the output shaft of the electric rotary machine; The second gear meshes with the first gear, and the second gear is fixedly mounted on the drive shaft. One end of the drive shaft is rotatably connected to the slide rail. The third gear is mounted and fixed on the drive shaft; The first rotating wheel is an eccentric wheel, which is mounted and fixed on the transmission shaft and integrally fixed with the third gear. The lower side of the sliding column abuts against the first rotating wheel. The second rotating wheel is a cylinder coaxial with the drive shaft and is fitted to the side of the first rotating wheel away from the third gear. The second rotating wheel is mounted and fixed on the drive shaft. The second rotating wheel has an arc notch, and the radius of the first rotating wheel is greater than the major diameter of the first rotating wheel.

[0013] Preferably, the housing further includes a TDP treatment unit, the TDP treatment unit comprising: A thermistor circuit board is fixed to the housing, and an electromagnetic coil is electrically connected to the output terminal of the thermistor circuit board. A heating plate is fixed to the side of the thermal circuit board that has an electromagnetic coil. TDP radiant plate, embedded inside the heating plate; A heat insulation plate is fixed to the side of the heating plate away from the thermistor circuit board to reduce the temperature of the TDP radiant plate. A heat-conducting plate is fixed to the side of the heat insulation plate away from the heating plate, and the heat-conducting plate is connected to the side wall of the shell to achieve uniform heating of the shell.

[0014] Compared with the prior art, the neck massager of the present invention has the following beneficial effects: This invention utilizes a spacing adjustment unit consisting of a drive assembly, a guide rail, and two moving blocks. During use, the drive assembly provides driving force to the two moving blocks, allowing them to move synchronously and in opposite directions along the curvature of the housing via the guide rail and guide holes. This indirectly controls the forward and reverse driving direction, driving the two massage head assemblies to reciprocate, thus expanding the massage area on the neck. Furthermore, the pressure adjustment units on each of the two moving blocks allow for inflation and deflation of the telescopic air cylinder during the massage process. This causes the moving plate to move within the support frame, which, in conjunction with a first spring, pushes the connecting column to extend and retract, enabling free adjustment of the massage head assembly's pressure on the user's neck. Through the coordinated operation of these components, the massage area and pressure can be freely adjusted according to the patient's needs during neck massage, resulting in a wide range of applications and better performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure from a first perspective in an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure from a second perspective in an embodiment of the present invention; Figure 3 This is a schematic diagram of the distribution structure of the massage head assembly in an embodiment of the present invention; Figure 4 This is a schematic diagram of the force adjustment unit in an embodiment of the present invention; Figure 5 This is a schematic diagram of the spherical airbag in an embodiment of the present invention; Figure 6 This is a schematic diagram of the massage head assembly in an embodiment of the present invention; Figure 7 This is a partial structural diagram of the force adjustment unit in an embodiment of the present invention; Figure 8 This is a partial structural schematic diagram of the inflatable component in an embodiment of the present invention; Figure 9 This is a schematic diagram of the TDP treatment unit in an embodiment of the present invention; Figure 10 This is a partial structural diagram of the TDP treatment unit in an embodiment of the present invention; Figure 11 This is a schematic diagram of the reciprocating drive component in an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of the airbag roller in an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Toothed strip; 2. Moving block; 3. Compressed airbag; 4. Air supply pipe; 5. Spherical airbag; 6. Outer shell; 7. Limiting block; 8. Movable base plate; 9. Fixed base plate; 10. Connecting column; 11. Short column; 12. Massage column; 13. Spiral guide groove; 14. Third spring; 15. Massage head; 16. Moving plate; 17. Support frame; 18. First spring; 19. Telescopic air cylinder; 20. Air outlet pipe; 21. Piston frame; 22. Piston plate; 23. Knob; 24. Threaded column; 25. Screw 26. Patterned cylinder; 27. Thermistor circuit board; 28. Electromagnetic coil; 29. ​​Heating plate; 30. TDP radiant plate; 31. Mineral stone; 32. Heat insulation plate; 33. Heat-conducting plate; 34. Protective gear; 35. Non-conductive material; 36. Conductive sheet; 37. Airbag roller; 38. Fixing ring; 39. Connecting rod; 40. Sliding column; 41. Slide rail; 42. First gear; 43. Second gear; 44. Third gear; 45. First rotating wheel; 46. Second rotating wheel; 47. Electric rotating machine; 48. Vent hole. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention.

[0019] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0020] See Figures 1 to 12 As shown, in order to enable greater flexibility in adjusting the neck massage area and intensity according to different patient needs during neck massage, and to improve adaptability, this embodiment provides a neck massager, including a massage head assembly, a housing, a spacing adjustment unit, and two intensity adjustment units. The housing has an arc-shaped cavity structure, with guide holes in its recessed portion. The spacing adjustment unit is located within the cavity of the housing and includes a drive assembly, a guide rail, and two moving blocks 2. The guide rail is arc-shaped and fixed to the housing, and the guide rail faces the guide holes. The two moving blocks 2 slide within the guide rail. Each moving block 2 has a massage head assembly mounted on its side facing the guide holes. The output end of the drive assembly is connected to the two moving blocks 2 to drive them to move synchronously in opposite directions. The two intensity adjustment units correspond one-to-one with the two moving blocks 2. Each intensity adjustment unit includes an inflation assembly, a connecting column 10, a moving plate 16, and a support frame 17. The first spring 18 and the telescopic air cylinder 19 are fixedly connected to the support frame 17 and the moving block 2. The moving plate 16 is slidably connected inside the support frame 17, and one side of the moving plate 16 is connected to the massage head assembly through the connecting column 10, and the other side is connected to the telescopic end of the telescopic air cylinder 19. The telescopic air cylinder 19 is fixed on the support frame 17, and the air inlet of the telescopic air cylinder 19 is connected to the air outlet pipe 20 of the inflation assembly. The two ends of the moving plate 16 are fixedly connected to the support frame 17 through the first spring 18, and the telescopic direction of the first spring 18 is parallel to the moving direction of the moving plate 16.

[0021] During the massage, the user wears the massager around their neck. The curved structure of the shell ensures a snug fit, which in turn activates the drive assembly to provide driving force to the two moving blocks 2. These blocks move synchronously in opposite directions along the curvature of the shell, controlled by guide rails and guide holes. This indirectly controls the forward and reverse movement of the two massage head assemblies, expanding the massage area on the neck. Simultaneously, the user can operate the inflation assembly to inflate and deflate the telescopic air cylinder 19, causing the moving plate 16 to move within the support frame 17. This, in conjunction with the first spring 18, pushes the connecting column 10 to extend and retract, allowing for free adjustment of the massage intensity on the user's neck. Through the coordinated operation of these components, the massage area and intensity can be freely adjusted according to the patient's needs during the neck massage, resulting in a wide range of applications and better massage effects.

[0022] See Figures 1 to 3 As shown, the drive assembly further includes: a toothed belt 1, two transmission gears, and a rotary driver. The toothed belt 1 wraps around the side of the guide rail facing the guide hole, and the toothed belt 1 is slidably connected to the side wall of the guide rail. Two moving blocks 2 are fixed on the upper and lower sides of the toothed belt 1, respectively. The two transmission gears are respectively located on both sides of the toothed belt 1, meshing with the toothed belt 1, and are rotatably connected to the housing via a rotating shaft. The rotary driver is fixedly connected to the housing. The rotary driver uses a servo motor and has an output shaft, which is coaxially fixed with one of the transmission gears. In use, the rotary driver directly provides driving force to the transmission gears connected to it. Under the mutual meshing and cooperation of the two transmission gears and the toothed belt 1, the toothed belt 1 drives the two moving blocks 2 to move in opposite directions. By controlling the forward and reverse rotation of the rotary driver, the two moving blocks 2 achieve reciprocating motion, thereby driving the two massage head groups to reciprocate, expanding the massage area on the neck.

[0023] See Figure 4 , Figure 7 and Figure 8As shown, the inflation assembly further includes: a piston frame 21, a piston plate 22, a threaded post 24, and a threaded sleeve. The piston frame 21 has a closed chamber and is installed inside the housing. The air outlet of the piston frame 21 is connected to the air outlet pipe 20. The piston plate 22 is slidably connected inside the piston frame 21, and the periphery of the piston plate 22 is tightly fitted to the side wall of the piston frame 21. The threaded post 24 passes through the side wall of the piston frame 21 away from the air outlet. One end of the post is rotatably connected to the piston plate 22, and the other end extends to the outside of the piston frame 21 and is fixedly connected to a knob 23. The threaded sleeve is fitted onto the threaded post 24 and is fixedly connected to the side wall of the piston frame 21. In use, rotating the knob 23 moves the piston plate 22 inward, allowing the gas in the piston frame 21 to reach the telescopic air cylinder 19 through the air pipe, causing the moving plate 16 to move upward, thereby increasing the squeezing force of the massage head 15 on the user, i.e., increasing the massage intensity. This allows the user to adjust the intensity according to their own needs during use, making the massage more comfortable.

[0024] See Figure 3 and Figure 5 As shown, a compression airbag 3 is further provided on one side of the moving block 2 perpendicular to its moving direction. One side of the compression airbag 3 is fixedly connected to the moving block 2, and the other side is fixedly connected to the shell through a baffle. The compression airbag 3 is connected to a spherical airbag 5 through an air supply pipe 4. A limiting frame is wrapped around the outside of the spherical airbag 5. The limiting frame has two fixed base plates 9 and a movable base plate 8. The spherical airbag 5 is located between the fixed base plate 9 and the movable base plate 8. The fixed base plate 9 is fixedly connected to the limiting frame and is connected to one end of the connecting column 10. The movable base plate 8 slides within the limiting frame and is connected to the massage head assembly. A second spring is provided between the movable base plate 8 and the fixed base plate 9. As the massage components move towards both ends, they compress the airbags 3, causing the gas inside to be transmitted through the air supply pipes 4 to the spherical airbags 5. The spherical airbags 5 inflate, and under the limiting action of the fixed base plate 9, they push the movable base plate 8, causing it to move the four massage columns 12 forward. This further enables adaptive adjustment of the massage intensity. The front end of the massage head 15 is inlaid with ball bearings to reduce friction, while the massage components move along the track to provide a wide-range massage.

[0025] See Figures 3 to 6As shown, further, the limiting frame is connected to the massage head assembly on the side away from the connecting column 10. The massage head assembly consists of multiple massage units, each including: a housing 6, a short column 11, a massage column 12, a massage head 15, and a guide assembly. The housing 6 is fixedly connected to the limiting frame. One end of the short column 11 is fixedly connected to the movable base plate 8, and the other end penetrates the side wall of the housing 6 and enters the housing 6. The short column 11 is slidably connected to the housing 6. One end of the massage column 12 is placed inside the housing 6 and fixedly connected to the short column 11, while the other end protrudes from the side wall of the housing 6 away from the short column 11 and is fixedly connected to the massage head 15. The guide assembly is disposed between the massage column 12 and the housing 6, and is used to rotate the massage column 12 while the movable base plate 8 pushes the massage column 12 to move. Specifically, the guiding assembly includes a fixed sleeve and a limiting block 7. The fixed sleeve is a cylindrical sleeve that is fitted and fixed onto the massage column 12. A spiral guide groove 13 is formed along the axial direction on the outer side wall of the fixed sleeve. One end of the limiting block 7 is placed in the spiral guide groove 13, and the other end is fixed to the side wall of the outer shell 6. A third spring 14 is fitted onto the massage column 12. One end of the third spring 14 abuts against the fixed sleeve, and the other end abuts against the side wall of the outer shell 6. When gas is filled into the spherical airbag 5, it pushes the massage column 12 and the fixed sleeve to move axially under the cooperation of the movable base plate 8 and the short column 11. Through the limiting action of the limiting block 7, and under the guidance of the spiral guide groove 13, the entire massage column 12 rotates, while compressing the third spring 14. After the gas in the spherical airbag 5 is discharged, the third spring 14 resets and pushes the fixed sleeve and the massage column 12 to move in opposite directions. Similarly, the cooperation between the limiting block 7 and the spiral guide groove 13 causes the massage column 12 to drive the massage head 15 to rotate in the opposite direction, so that the massage head 15 can rotate while extending forward or retracting backward, and perform pressing and rotating massage on the neck, which can effectively improve the massage effect.

[0026] See Figure 11 and Figure 12As shown, an airbag massage unit is respectively provided at both ends of the guide hole in the recess of the housing. The airbag massage unit includes: a slide 40, a connecting rod 38, an airbag roller 36, and a reciprocating drive assembly. The slide 40 is fixed inside the housing, and the cross-section of the slide 40 is trapezoidal. A sliding column 39 is slidably connected inside the slide 40. One end of the connecting rod 38 is fixedly connected to the sliding column 39, and the other end passes through a pre-reserved side hole on the side wall of the housing and is fixedly connected to a fixing ring 37. The airbag roller 36 is fitted on the side wall of the fixing ring 37 away from the connecting rod 38, and the airbag roller 36 is rotatably connected to the fixing ring 37. A vent hole 47 is provided on the side of the airbag roller 36, which allows air to be freely inflated and deflated into the airbag. The reciprocating drive assembly is used to drive the sliding column 39 to move up and down reciprocally within the slide 40. Specifically, the reciprocating drive assembly includes: an electric rotary motor 46, a first gear 41, a second gear 42, a third gear 43, a first rotating wheel 44, and a second rotating wheel 45. The electric rotary motor 46 uses a servo motor and is fixed inside the housing. The first gear 41 is mounted on the output shaft of the electric rotary motor 46; the second gear 42 meshes with the first gear 41 and is mounted on the drive shaft, one end of which is rotatably connected to the slide rail 40, and the other end is rotatably connected to the housing; the third gear 43 is mounted on the drive shaft and is used to separate the first rotating wheel 44 and the first gear 41 to prevent wear or interference to the first rotating wheel 44. The first rotating wheel 44 is an eccentric wheel, mounted on the drive shaft and integrally fixed with the third gear 43, with the lower side of the slide column 39 abutting against the first rotating wheel 44. The second rotating wheel 45 is a cylinder coaxial with the drive shaft and is fitted to the side of the first rotating wheel 44 away from the third gear 43. The second rotating wheel 45 is mounted and fixed on the drive shaft. The second rotating wheel 45 has an arc notch, and the radius of the first rotating wheel 44 is larger than the major axis of the first rotating wheel 44. In use, the electric rotary machine 46 is started, driving the first gear 41 to rotate. The meshing of the first gear 41 and the second gear 42 drives the transmission shaft to rotate. The transmission shaft drives the third gear 43, the first rotating wheel 44, and the second rotating wheel 45 to rotate synchronously. When the second rotating wheel 45 rotates to the notch, the connecting rod 38 moves downward along the arc edge of the first rotating wheel 44. With the continuous rotation of the first rotating wheel 44, the connecting rod 38 moves upward along the arc edge of the first rotating wheel 44 and the second rotating wheel 45 in sequence, and moves to the non-notch position of the second rotating wheel 45. Since the radius of the second rotating wheel 45 is larger than the major diameter of the first rotating wheel 44, the connecting rod 38 can pause slightly at the non-notch position of the second rotating wheel 45, which can alleviate the excessive friction that may be caused by the upward movement of the sliding column 39. In addition, the airbag roller 36 is non-fixed and can rotate, which further alleviates the possible excessive friction. Thus, under the above working method, the slide column 39 moves up and down periodically, driving the airbag roller 36 to move up and down to massage the neck.

[0027] See Figure 9As shown, a TDP treatment unit is also provided inside the housing. The TDP treatment unit includes: a thermistor circuit board 26, a heating plate 28, a TDP radiation plate 29, a heat insulation plate 31, and a heat-conducting plate 32. The thermistor circuit board 26 is fixed to the housing, and its output terminal is electrically connected to an electromagnetic coil 27. The heating plate 28 is fixed to the side of the thermistor circuit board 26 with the electromagnetic coil 27. The TDP radiation plate 29 is embedded inside the heating plate 28. The heat insulation plate 31 is fixed to the side of the heating plate 28 away from the thermistor circuit board 26 to reduce the temperature of the TDP radiation plate 29. The heat-conducting plate 32 is fixed to the side of the heat insulation plate 31 away from the heating plate 28, and is connected to the side wall of the housing to achieve uniform heating of the housing.

[0028] See Figure 10 As shown, a protective device 33, a non-conductive material 34, and a conductive sheet 35 are also provided between the heat-conducting plate 32 and the side wall of the housing. The protective device 33 is fixed to the housing. The non-conductive material 34 and the conductive sheet 35 are placed between the protective device 33 and the heat-conducting plate 32. The two ends of the conductive sheet 35 are connected to the thermal circuit board 26 and the electromagnetic coil 27 through the limiting plate to form an electrical circuit. The conductive sheet 35 is slidably connected to the limiting plate. The conductive sheet 35 is fixed to one end of the non-conductive material 34. The non-conductive material 34 is used for heat transfer between the protective device 33 and the heat-conducting plate 32. When the temperature exceeds the set temperature, it expands and pushes up the conductive sheet 35 to disconnect the circuit.

[0029] See Figure 9 As shown, the TDP treatment unit also includes an energy-saving component, which includes a heat-absorbing layer, a thermoelectric converter, and a battery. The heat-absorbing layer is disposed between the TDP radiation plate 29 and the heat insulation plate 31. Mineral stones 30 are arranged inside the heat-absorbing layer. The heat-absorbing layer is connected to the input end of the thermoelectric converter, and the output end of the thermoelectric converter is connected to the battery. The thermoelectric converter is used to convert the absorbed heat energy into electrical energy and store it in the battery. The battery is electrically connected to the thermal circuit board 26.

[0030] Specifically, during the massage, the circuit is activated, connecting the electromagnetic coil 27. Simultaneously, the thermistor circuit board 26 monitors the circuit, heating the heating plate 28. The heating plate 28 then heats the TDP radiant plate 29, raising its temperature to 290°C~320°C, emitting electromagnetic waves that are absorbable by the human body. This provides anti-inflammatory and analgesic effects to the neck, relieving pressure and fatigue, alleviating neck muscle tension, and promoting blood circulation. The mineral stone 30 absorbs most of the heat and converts it into electrical energy, achieving both cooling and energy reuse, thus saving energy. This energy-saving device maximizes the temperature of the heating plate 28, allowing the TDP radiant plate 29 to emit electromagnetic waves of the appropriate wavelength that are absorbable by the human body, while simultaneously reducing the temperature in contact with the skin. Heat insulation is then provided by the heat insulation plate 31. The back of the neck is heated evenly by the heat-conducting plate 32. The non-conductive material 34 conducts heat when in contact with the protective gear 33. When the protective gear 33 reaches a certain temperature, the non-conductive material 34 expands, pushing up the conductive sheet 35, breaking the circuit and preventing burns.

[0031] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A neck massager, comprising two massage head assemblies, characterized in that, Also includes: The shell has an arc-shaped cavity structure, and a guide hole is provided in the recess of the shell; The spacing adjustment unit is disposed in the cavity of the housing and includes a drive assembly, a guide rail and two moving blocks. The guide rail is arc-shaped and fixed to the housing, and the guide rail is directly opposite the guide hole. The two moving blocks slide in the guide rail. Each of the two moving blocks is equipped with a massage head assembly on the side facing the guide hole. The output end of the drive assembly is connected to the two moving blocks to drive the two moving blocks to move synchronously in opposite directions. Two force adjustment units correspond one-to-one with two moving blocks. Each force adjustment unit includes an inflation assembly, a connecting column, a moving plate, a support frame, a first spring, and a telescopic air cylinder. The support frame is fixedly connected to the moving blocks. The moving plate is slidably connected within the support frame. One side of the moving plate is connected to the massage head assembly via the connecting column, and the other side is connected to the telescopic end of the telescopic air cylinder. The telescopic air cylinder is fixed to the support frame, and its air inlet is connected to the air outlet of the inflation assembly. Both ends of the moving plate are fixedly connected to the support frame via the first spring.

2. A neck massager according to claim 1, characterized in that, The driving component includes: A toothed strip is wrapped around the side of the guide rail facing the guide hole, and the toothed strip is slidably connected to the side wall of the guide rail. The two moving blocks are respectively fixed on the upper and lower sides of the toothed strip. Two transmission gears are respectively disposed on both sides of the toothed strip. The transmission gears mesh with the toothed strip, and the transmission gears are rotatably connected to the housing through a rotating shaft. A rotary driver having an output shaft that is coaxially fixed to one of the transmission gears.

3. A neck massager according to claim 1, characterized in that, The inflation assembly includes: A piston frame having a closed chamber is installed inside the housing, and the air outlet of the piston frame is connected to the air outlet pipe; The piston plate is slidably connected to the piston frame, and the periphery of the piston plate is tightly fitted with the side wall of the piston frame. A threaded column is inserted through the piston frame on the side wall away from the outlet. One end of the column is rotatably connected to the piston plate, and the other end extends to the outside of the piston frame and is fixedly connected to a knob. A threaded sleeve is fitted onto the threaded post, and the threaded sleeve is fixedly connected to the side wall of the piston frame.

4. A neck massager according to claim 1, characterized in that, A compression airbag is provided on one side of the moving block perpendicular to its direction of movement. One side of the compression airbag is fixedly connected to the moving block, and the other side is fixedly connected to the housing through a baffle. The compression airbag is connected to a spherical airbag through an air supply pipe. A limiting frame is wrapped around the outside of the spherical airbag. The limiting frame has a fixed base plate and a movable base plate. The spherical airbag is located between the fixed base plate and the movable base plate. The fixed base plate is fixedly connected to the limiting frame and connected to one end of a connecting column. The movable base plate slides within the limiting frame and is connected to the massage head assembly. A second spring is provided between the movable base plate and the fixed base plate.

5. A neck massager according to claim 4, characterized in that, The limiting frame is connected to the massage head assembly on the side opposite to the connecting post. The massage head assembly consists of multiple massage units, each massage unit including: The outer shell is fixedly connected to the limiting frame; A short column, one end of which is fixedly connected to the movable base plate, and the other end of which penetrates the side wall of the outer shell and enters the outer shell; the short column is slidably connected to the outer shell. A massage column, one end of which is placed inside the outer shell and fixed to the short column, and the other end protruding from the side wall of the outer shell away from the short column; The massage head is fixedly connected to one end of the massage column that protrudes from the housing; A guide assembly, disposed between the massage column and the housing, is used to rotate the massage column while the movable base plate pushes the massage column to move.

6. A neck massager according to claim 5, characterized in that, The guide assembly includes a fixing sleeve and a limiting block. The fixing sleeve is a cylindrical sleeve that is fitted and fixed on the massage column. A spiral guide groove is provided on the outer side wall of the fixing sleeve along the axial direction. One end of the limiting block is placed in the spiral guide groove, and the other end is fixed to the side wall of the outer shell. A third spring is fitted on the massage column. One end of the third spring abuts against the fixing sleeve, and the other end abuts against the side wall of the outer shell.

7. A neck massager according to claim 1, characterized in that, An airbag massage unit is respectively provided in the recess of the housing at both ends of the guide hole, and the airbag massage unit includes: A slide rail is fixed inside the housing, and a sliding column is slidably connected inside the slide rail; The connecting rod has one end fixedly connected to the sliding column, and the other end passes through the side hole reserved on the side wall of the housing and is fixedly connected to a fixing ring. An airbag roller is fitted onto the side wall of the fixed ring away from the connecting rod, and the airbag roller is rotatably connected to the fixed ring; A reciprocating drive assembly is used to drive the slide column to achieve up-and-down reciprocating motion within the slide rail.

8. A neck massager according to claim 7, characterized in that, The reciprocating drive component includes: An electric rotary machine is fixed inside the housing; The first gear is mounted and fixed on the output shaft of the electric rotary machine; The second gear meshes with the first gear, and the second gear is fixedly mounted on the drive shaft. One end of the drive shaft is rotatably connected to the slide rail. The third gear is mounted and fixed on the drive shaft; The first rotating wheel is an eccentric wheel, which is mounted and fixed on the transmission shaft and integrally fixed with the third gear. The lower side of the sliding column abuts against the first rotating wheel. The second rotating wheel is a cylinder coaxial with the drive shaft and is fitted to the side of the first rotating wheel away from the third gear. The second rotating wheel is mounted and fixed on the drive shaft. The second rotating wheel has an arc notch, and the radius of the first rotating wheel is greater than the major diameter of the first rotating wheel.

9. A neck massager according to claim 1, characterized in that, The housing also includes a TDP treatment unit, which comprises: A thermistor circuit board is fixed to the housing, and an electromagnetic coil is electrically connected to the output terminal of the thermistor circuit board. A heating plate is fixed to the side of the thermal circuit board that has an electromagnetic coil. TDP radiant plate, embedded inside the heating plate; A heat insulation plate is fixed to the side of the heating plate away from the thermistor circuit board to reduce the temperature of the TDP radiant plate. A heat-conducting plate is fixed to the side of the heat insulation plate away from the heating plate, and the heat-conducting plate is connected to the side wall of the shell to achieve uniform heating of the shell.

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