Deep muscle stimulator capable of steplessly adjusting amplitude

Abstract

The utility model relates to the technical field of rehabilitation instruments, in particular to a deep muscle stimulator capable of steplessly adjusting amplitude, which comprises an outer cylinder and a treatment head seat arranged at the upper end of the outer cylinder, a power mechanism is arranged in the outer cylinder, the power mechanism is in transmission connection with a working shaft extending into the treatment head seat, and the working shaft is in transmission connection with the treatment head seat. An amplitude adjusting assembly is arranged at the upper end of the working shaft; an eccentric vibration assembly connected with the amplitude adjusting assembly is movably arranged in the treatment head seat; the amplitude adjusting assembly comprises an eccentric shaft and an adjusting piece used for adjusting the position of the eccentric shaft, and the adjusting piece is transversely and rotationally arranged on the working shaft. The eccentric vibration assembly comprises an eccentric connecting plate and a telescopic shaft, one end of the eccentric connecting plate is rotationally connected with the eccentric shaft, the other end of the eccentric connecting plate is connected with the telescopic shaft, and the telescopic shaft is connected with a treatment head. The amplitude of the treatment head is effectively adjusted by adopting a simple structure, so that stepless adjustment of the amplitude of the treatment head is realized, and the use requirements of different patients are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to rehabilitation equipment technical field, concretely relates to a deep muscle stimulator with stepless amplitude adjustment. BACKGROUND

[0002] A large number of human muscle pain reasons are due to various different muscle diseases, such as sprain, lactic acid accumulation, scar tissue etc., wherein the deep muscle stimulator can act on deep muscle tissue through beating and mechanical vibration, which mainly relieves pain through vertical physical vibration stimulation of deep muscle, and the treatment head acts on human body, relaxes spastic muscle, inhibits pain, is similar to pressing technology of massage technique, can safely stimulate every part of the body, from cell, blood vessel muscle, nervous system, endocrine system, skeleton to internal organ, and reaches relaxation effect.

[0003] The deep muscle stimulator can be used for the treatment of whole body muscle or local muscle spasm, and pain is relieved by effectively increasing muscle metabolism and promoting lactic acid circulation, and the key to eliminate pain is deep, rapid and short duration beating. The deep muscle stimulator has been widely applied in the fields of rehabilitation treatment, sports training, pain management etc., and the deep muscle stimulator can help relieve muscle pain, improve muscle function, promote blood circulation, improve sports performance etc. The deep muscle stimulator in the prior art is mostly fixed amplitude or product combination with multiple fixed amplitudes, and the amplitude of the treatment head cannot be effectively adjusted, so that the needs of different patients cannot be met. SUMMARY

[0004] The utility model discloses to solve the problem that the prior art deep muscle stimulator cannot adjust the amplitude of the treatment head, provides a deep muscle stimulator with stepless amplitude adjustment, which can effectively adjust the amplitude of the treatment head to realize stepless adjustment of the amplitude of the treatment head and meet the use needs of different patients.

[0005] In order to realize the above-mentioned purpose, the technical scheme of the utility model is as follows: a deep muscle stimulator with stepless amplitude adjustment, comprising an outer cylinder and a treatment head seat arranged at the upper end of the outer cylinder, a power mechanism is arranged in the inner part of the outer cylinder, the power mechanism is drivingly connected with a working shaft extending into the treatment head seat, and the upper end of the working shaft is provided with an amplitude adjustment assembly; an eccentric vibration assembly connected with the amplitude adjustment assembly is movably arranged in the treatment head seat. The power mechanism can drive the working shaft to rotate, so that the working shaft drives the eccentric vibration assembly to do extension and contraction movement through the amplitude adjustment assembly, thereby realizing the effect of vibration stimulation of deep muscle of the patient; the amplitude of the eccentric vibration assembly can be adjusted through the amplitude adjustment assembly.

[0006] The amplitude adjusting assembly comprises an eccentric shaft and an adjusting member for adjusting the position of the eccentric shaft, the adjusting member is arranged in transverse rotation on the working shaft, the eccentric shaft can drive the eccentric vibration assembly to perform extension and contraction movement during rotation of the working shaft, and the position of the eccentric shaft can be adjusted by the adjusting member to achieve the effect of adjusting the amplitude of the eccentric vibration assembly.

[0007] The eccentric vibration assembly comprises an eccentric connecting plate and an extension shaft, one end of the eccentric connecting plate is rotationally connected with the eccentric shaft, and the other end is connected with the extension shaft, and the extension shaft is connected with the treatment head, the eccentric connecting plate is connected with the eccentric shaft, so that the extension shaft performs extension and contraction movement during rotation of the working shaft driven by the eccentric shaft, thereby achieving the effect of vibration stimulation treatment of deep muscles of a patient by the treatment head.

[0008] Further, the top of the outer cylinder is detachably provided with a rear cover, and the outer side of the outer cylinder is sleeved with a handle cover; the bottom of the treatment head seat is provided with a locking nut, and the treatment head seat is connected with the outer cylinder through the locking nut, the rear cover plays a role of closing the outer cylinder, and the handle cover is convenient for a user to use the deep muscle stimulation.

[0009] Further, the power mechanism comprises a motor, a shaft coupling seat and a bearing one, the shaft coupling seat is sleeved in the inner part of the upper end of the outer cylinder, the motor is arranged at the bottom of the shaft coupling seat, the output shaft of the motor extends into the inner part of the shaft coupling seat and is connected with a shaft coupling, and the bearing one is embedded in the inner part of the shaft coupling seat, the motor is used to achieve the purpose of driving the working shaft to rotate.

[0010] Further, the working shaft has a stepped structure, the lower end of the working shaft is connected with the shaft coupling, and the motor is drivingly connected with the working shaft through the shaft coupling; the upper end of the working shaft is provided with an adjusting cavity, and the top of the working shaft is provided with an opening which is in communication with the adjusting cavity, the adjusting cavity provides a mounting position for the adjusting nut, and the opening is used for the adjusting nut to drive the eccentric shaft to move, thereby achieving the effect of adjusting the position of the eccentric shaft.

[0011] Further, the adjusting member is an adjusting bolt, the adjusting bolt is rotationally connected with the working shaft; the upper end of the working shaft is provided with an adjusting cavity, and the top of the working shaft is provided with an opening which is in communication with the adjusting cavity, the adjusting cavity provides a mounting position for the adjusting nut, and the opening is used for the adjusting nut to drive the eccentric shaft to move, thereby achieving the effect of adjusting the position of the eccentric shaft.

[0012] Further, the lower end of the eccentric shaft penetrates through the opening and is connected with an adjusting sleeve, the adjusting sleeve is located in the inner part of the adjusting cavity, the adjusting bolt is drivingly connected with the adjusting sleeve, the adjusting sleeve moves in the adjusting cavity by rotating the adjusting bolt, the adjusting sleeve drives the eccentric shaft to move leftward or rightward, thereby achieving the effect of adjusting the position of the eccentric shaft, and achieving the effect of adjusting the amplitude of the treatment head.

[0013] Further, a concave groove is formed on one side of the upper end of the working shaft, and a limiting pin for limiting the position of the adjusting bolt is vertically arranged in the concave groove; one end of the adjusting bolt extends into the concave groove and is provided with an annular groove, and the middle part of the limiting pin is located in the annular groove, so that the limiting pin limits the adjusting bolt to avoid axial movement of the adjusting bolt.

[0014] Further, a step is fixedly arranged on the eccentric shaft, a bearing two is arranged on the step and surrounds the eccentric shaft, and the top of the eccentric shaft is provided with a fastening bolt; a flat washer is arranged between the screw head of the fastening bolt and the bearing two, the step supports the bearing two, and the fastening bolt and the flat washer press the bearing two.

[0015] Further, a connecting groove matched with the eccentric connecting plate is formed on one end of the telescopic shaft, and a pin shaft is vertically arranged at the connecting groove; the telescopic shaft is connected with the eccentric connecting plate through the pin shaft, and a pin shaft gasket is arranged between the telescopic shaft and the eccentric connecting plate; the telescopic shaft is connected with the eccentric connecting plate through the pin shaft, so that the telescopic shaft can be driven to move telescopically when the eccentric connecting plate is driven to move by the eccentric shaft.

[0016] Further, a cover hole is formed on the top of the treatment head base, and a cover is detachably arranged at the cover hole; a lubricating copper sleeve is fixedly arranged in the treatment head base, and the telescopic shaft is slidably arranged in the lubricating copper sleeve; the lubricating copper sleeve facilitates the telescopic movement of the telescopic shaft and limits and guides the telescopic shaft, so that the telescopic shaft drives the treatment head to move, and the treatment head can vibrate and stimulate the deep muscle of a patient.

[0017] Through the above technical solutions, the utility model has the advantages of reasonable structure and good use effect.

[0018] The utility model discloses a structure is reasonable, use effect is good, can satisfy the vibration stimulation treatment of deep muscle of patient to the amplitude of treatment head can also be adjusted, realizes the effect of stepless regulation treatment head amplitude, thereby satisfies the use demand of different patients, improves the scope of application.

[0019] The utility model discloses a structure is reasonable, use effect is good, can satisfy the vibration stimulation treatment of deep muscle of patient to the amplitude of treatment head can also be adjusted, realizes the effect of stepless regulation treatment head amplitude, thereby satisfies the use demand of different patients, improves the scope of application.

[0020] The utility model discloses a amplitude adjusting assembly can adjust the amplitude of eccentric vibration assembly to realize the purpose of adjusting the amplitude of treatment head, wherein through the rotation adjusting bolt can drive adjusting screw sleeve movement in the adjusting cavity, reach the purpose that adjusting screw sleeve drives eccentric shaft to move left or right, realize the function of adjusting eccentric vibration assembly amplitude, further realize the effect of adjusting treatment head amplitude, satisfy the use demand of different patients, wherein through the cooperation of limit pin and annular groove, to avoid the phenomenon that adjusting bolt appears axial movement, and limit pin plays the role of limiting adjusting bolt. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic diagram of deep muscle stimulator of the utility model discloses a kind of stepless regulation amplitude;

[0022] Figure 2 It is a partial structure schematic diagram of deep muscle stimulator of the utility model discloses a kind of stepless regulation amplitude;

[0023] Figure 3 It is Figure 1 Enlarged structure schematic diagram of place A in

[0024] In the drawing, label is: 1 is outer tube, 2 is back cover, 3 is handle cover, 4 is motor, 5 is shaft coupling seat, 6 is treatment head seat, 7 is cover plate, 8 is lock nut, 9 is shaft coupling, 10 is bearing one, 11 is working shaft, 12 is adjusting cavity, 13 is aperture, 14 is adjusting bolt, 15 is limit pin, 16 is adjusting screw sleeve, 17 is eccentric shaft, 18 is step, 19 is eccentric connecting plate, 20 is bearing two, 21 is fastening bolt, 22 is flat washer, 23 is telescopic shaft, 24 is pin shaft, 25 is pin shaft gasket, 26 is lubricating copper sleeve. DETAILED DESCRIPTION

[0025] The utility model is further described in connection with the drawings and specific embodiment:

[0026] As Figures 1 to 3As shown, a deep muscle stimulation instrument with stepless adjustable amplitude comprises an outer cylinder 1 and a treatment head base 6 arranged at the upper end of the outer cylinder 1, the inner part of the outer cylinder 1 is provided with a power mechanism, the power mechanism is drivingly connected with a working shaft 11 extending into the treatment head base 6, the upper end of the working shaft 11 is provided with an amplitude adjusting assembly; the treatment head base 6 is movably provided with an eccentric vibration assembly connected with the amplitude adjusting assembly. In the embodiment, the outer cylinder 1 is a hollow cylinder structure with openings at the upper and lower ends, which serves to install the power mechanism, the inner part of the treatment head base 6 is also a hollow structure, which serves to install the eccentric vibration assembly and the amplitude adjusting assembly, the power mechanism drives the working shaft 11 to rotate, the working shaft 11 can drive the eccentric vibration assembly to move through the amplitude adjusting assembly to achieve the effect of deep muscle vibration stimulation of the patient; wherein the amplitude adjusting assembly serves to adjust the amplitude of the eccentric vibration assembly.

[0027] The amplitude adjusting assembly comprises an eccentric shaft 17 and an adjusting piece for adjusting the position of the eccentric shaft 17, the adjusting piece is transversely arranged on the working shaft 11. In the embodiment, the eccentric shaft 17 can be driven to move by rotating the adjusting piece to adjust the position of the eccentric shaft 17 to achieve the effect of adjusting the amplitude of the treatment head.

[0028] The eccentric vibration assembly comprises an eccentric connecting plate 19 and an extension shaft 23, one end of the eccentric connecting plate 19 is rotatably connected with the eccentric shaft 17, the other end is connected with the extension shaft 23, and the extension shaft 23 is connected with a treatment head. In the embodiment, the two ends of the eccentric connecting plate 19 are rotatably connected with the eccentric shaft 17 and the extension shaft 23 respectively, wherein the eccentric shaft 17 drives the eccentric connecting plate 19 to move during the rotation of the working shaft 11, so that the eccentric connecting plate 19 pushes or pulls the extension shaft 23, and the extension shaft 23 drives the treatment head to move synchronously during the extension and retraction movement of the extension shaft 23 in the treatment head base 6, so as to achieve the effect of deep muscle vibration stimulation treatment of the treatment head on the patient.

[0029] A rear cover 2 is detachably arranged at the top of the outer cylinder 1, a handle cover 3 is arranged on the outer side of the outer cylinder 1; a locking nut 8 is arranged at the bottom of the treatment head base 6, and the treatment head base 6 is connected with the outer cylinder 1 through the locking nut 8. In the embodiment, the rear cover 2 is bolted with the outer cylinder 1, and the rear cover 2 serves to close the outer cylinder 1, and plays a protective role on the power mechanism through cooperation with the outer cylinder 1; the handle cover 3 is made of silica gel material, and the deep muscle stimulation instrument is used by the user through the handle cover 3 to improve the comfort during use of the deep muscle stimulation instrument; the treatment head base 6 is installed at the upper end of the outer cylinder 1 through the action of the locking nut 8.

[0030] The power mechanism comprises a motor 4, a shaft coupling seat 5 and a bearing one 10, the shaft coupling seat 5 is sleeved in the inner part of the upper end of the outer cylinder 1, the motor 4 is arranged at the bottom of the shaft coupling seat 5, the output shaft of the motor 4 extends into the inner part of the shaft coupling seat 5 and is connected with a shaft coupling 9, and the bearing one 10 is embedded in the inner part of the shaft coupling seat 5. In the embodiment, the shaft coupling seat 5 is a hollow cylinder structure with both ends open, the shaft coupling seat 5 is matched with the outer cylinder 1, the diameter of the upper end of the shaft coupling seat 5 is larger than that of the lower end, and a step surface matched with the outer cylinder 1 is arranged on the outer side of the upper end of the shaft coupling seat 5; the motor 4 is bolted with the shaft coupling seat 5, and a through hole for the output shaft of the motor 4 to pass through is formed in the shaft coupling seat 5; and the bearing one 10 is tightly matched with the shaft coupling seat 5, the bearing one 10 is a deep groove ball bearing, and a pressing plate is further bolted on the top of the shaft coupling seat 5 and sleeved on the working shaft 11 to press and fix the bearing one 10.

[0031] The working shaft 11 is in a stepped structure, the lower end of the working shaft 11 is connected with the shaft coupling 9, the motor 4 is drivingly connected with the working shaft 11 through the shaft coupling 9, and the middle part of the working shaft 11 is interference-fitted with the inner ring of the bearing one 10. In the embodiment, the diameter of the working shaft 11 gradually decreases from top to bottom, and the working shaft 11 is driven to rotate by the motor 4 through the bearing one 10; the motor 4 is turned on, and the output shaft of the motor 4 drives the working shaft 11 to rotate through the shaft coupling 9.

[0032] The adjusting member is an adjusting bolt 14, the adjusting bolt 14 is rotationally connected with the working shaft 11, an adjusting cavity 12 is formed in the upper end of the working shaft 11, and an opening 13 communicating with the adjusting cavity 12 is formed in the top of the working shaft 11. In the embodiment, the adjusting cavity 12 provides a mounting position for an adjusting sleeve 16, the adjusting sleeve 16 is slidingly clamped in the adjusting cavity 12, and the opening 13 provides a movement channel for an eccentric shaft 17 to facilitate the position adjustment of the eccentric shaft 17.

[0033] The eccentric shaft 17 passes through the opening 13 and is connected with the adjusting sleeve 16, the adjusting sleeve 16 is located in the adjusting cavity 12, and the adjusting bolt 14 is drivingly connected with the adjusting sleeve 16. In the embodiment, the adjusting bolt 14 is rotated to drive the adjusting sleeve 16 to slide in the adjusting cavity 12, the adjusting sleeve 16 drives the eccentric shaft 17 to move, and the position of the eccentric shaft 17 is adjusted, wherein the eccentric shaft 17 synchronously drives an eccentric connecting plate 19 and an extension shaft 23 to move.

[0034] The upper end of the working shaft 11 is provided with a concave groove, and a limiting pin 15 for limiting the position of the adjusting bolt 14 is vertically arranged in the concave groove. One end of the adjusting bolt 14 extends into the concave groove and is provided with an annular groove, and the middle part of the limiting pin 15 is located in the annular groove. In this embodiment, the limiting pin 15 is located on one side of the adjusting bolt 14. During the rotation of the adjusting bolt 14, the middle part of the limiting pin 15 is always located in the annular groove. The limiting pin 15 is used to limit the position of the adjusting bolt 14, so that the adjusting bolt 14 can only rotate and cannot move horizontally.

[0035] The eccentric shaft 17 is fixedly provided with a step 18, the step 18 is provided with a bearing 20 sleeved on the eccentric shaft 17, and the bearing 20 is arranged on an eccentric connecting plate 19. The top of the eccentric shaft 17 is provided with a fastening bolt 21, and a flat washer 22 is arranged between the head of the fastening bolt 21 and the bearing 20. In this embodiment, the step 18 supports the bearing 20, the eccentric connecting plate 19 is provided with a bearing hole matched with the bearing 20, and the bearing 20 is embedded in the bearing hole. The bearing 20 is a deep groove ball bearing, the flat washer 22 is sleeved on the fastening bolt 21, and the diameter of the flat washer 22 is greater than that of the fastening bolt 21. The purpose is to press and fix the bearing 20 by the fastening bolt 21 and the flat washer 22.

[0036] One end of the telescopic shaft 23 is provided with a connecting groove matched with the eccentric connecting plate 19, a pin shaft 24 is vertically arranged at the connecting groove, the telescopic shaft 23 is connected with the eccentric connecting plate 19 through the pin shaft 24, and a pin shaft gasket 25 is arranged between the telescopic shaft 23 and the eccentric connecting plate 19. In this embodiment, one end of the eccentric connecting plate 23 is inserted into the connecting groove 24, and the eccentric connecting plate 10 is rotatably sleeved on the pin shaft 24. The purpose is to drive the telescopic shaft 23 to make telescopic movement. The pin shaft gasket 25 is sleeved on the pin shaft 24.

[0037] The top of the treatment head base 6 is provided with a cover hole, and a cover 7 is detachably arranged at the cover hole. A lubricating copper sleeve 26 is fixedly arranged in the treatment head base 6, and the telescopic shaft 23 is slidably sleeved in the lubricating copper sleeve 26. In this embodiment, the cover 7 is bolted with the treatment head base 6, and the lubricating copper sleeve 26 facilitates the telescopic movement of the telescopic shaft 23.

[0038] The utility model discloses a working principle as follows: when the deep muscle vibration stimulation treatment of patient is to, open motor 4, the output shaft of motor 4 drives working shaft 11 to rotate through coupling 9, and working shaft 11 drives eccentric shaft 17 to rotate, and eccentric shaft 17 drives eccentric connecting plate 19 to move, and through the action of bearing two 20 and pin shaft 24, eccentric connecting plate 19 pushes and pulls telescopic axle 23, and telescopic axle 23 does telescopic movement in lubricated copper bush 26, to realize the purpose of the deep muscle vibration stimulation treatment of treatment head to patient.

[0039] When needing to adjust the amplitude of treatment head, rotate adjusting bolt 14, and adjusting bolt 14 drives adjusting screw sleeve 16 to slide left or right in adjusting cavity 12, and adjusting screw sleeve 16 drives eccentric shaft 17 to move left or right, realizes the purpose of adjusting eccentric shaft 17 position, and eccentric shaft 17 synchronously drives eccentric connecting plate 19 and telescopic axle 23 to move, to realize the effect of stepless adjusting treatment head amplitude.

[0040] The above-mentioned embodiment is only the preferred embodiment of the utility model, and does not limit the scope of the utility model, so equivalent changes or modifications of the technical solutions described in the utility model patent range should be included in the utility model application patent range.

Claims

1. A deep muscle stimulator with continuously adjustable amplitude, comprising an outer cylinder (1) and a treatment head seat (6) arranged at the upper end of the outer cylinder (1), characterized in that, The inner part of the outer cylinder (1) is provided with a power mechanism, the power mechanism is drivingly connected with a working shaft (11) extending into the treatment head base (6), the upper end of the working shaft (11) is provided with an amplitude adjusting assembly; the inner part of the treatment head base (6) is movably provided with an eccentric vibration assembly connected with the amplitude adjusting assembly; The amplitude adjusting assembly comprises an eccentric shaft (17) and an adjusting member for adjusting the position of the eccentric shaft (17), the adjusting member is transversely rotatably arranged on the working shaft (11); The eccentric vibration assembly comprises an eccentric connecting plate (19) and an extension shaft (23), one end of the eccentric connecting plate (19) is rotatably connected with the eccentric shaft (17), the other end is connected with the extension shaft (23), and the extension shaft (23) is connected with a treatment head.

2. The deep muscle stimulator of claim 1, wherein, The top of the outer cylinder (1) is detachably provided with a rear cover (2), the outer side of the outer cylinder (1) is sleeved with a handle cover (3); the bottom of the treatment head base (6) is provided with a locking nut (8), and the treatment head base (6) is connected with the outer cylinder (1) through the locking nut (8).

3. The deep muscle stimulator of claim 1, wherein the amplitude of the stimulation signal is continuously adjustable. The power mechanism comprises a motor (4), a shaft coupling base (5) and a bearing one (10), the shaft coupling base (5) is sleeved in the inner part of the upper end of the outer cylinder (1), the motor (4) is arranged at the bottom of the shaft coupling base (5), the output shaft of the motor (4) extends into the inner part of the shaft coupling base (5) and is connected with a shaft coupling (9), and the bearing one (10) is embedded in the inner part of the shaft coupling base (5).

4. The deep muscle stimulator of claim 3, wherein the amplitude of the stimulation signal is adjusted by the control unit in response to the output signal of the sensor. The working shaft (11) is in a stepped structure, the lower end of the working shaft (11) is connected with the shaft coupling (9), and the motor (4) is drivingly connected with the working shaft (11) through the shaft coupling (9); the middle part of the working shaft (11) is interference-fitted with the inner ring of the bearing one (10).

5. The deep muscle stimulator of claim 1, wherein the amplitude of the stimulation signal is continuously adjustable. The adjusting member is an adjusting bolt (14), the adjusting bolt (14) is rotatably connected with the working shaft (11); the upper end of the working shaft (11) is provided with an adjusting cavity (12), and the top of the working shaft (11) is provided with an opening (13) in communication with the adjusting cavity (12).

6. The deep muscle stimulator of claim 5, wherein the amplitude of the stimulation signal is continuously adjustable. The lower end of the eccentric shaft (17) penetrates through the opening (13) and is connected with an adjusting sleeve (16), the adjusting sleeve (16) is located in the adjusting cavity (12), and the adjusting bolt (14) is drivingly connected with the adjusting sleeve (16).

7. The deep muscle stimulator of claim 6, wherein the amplitude of the stimulation signal is continuously adjustable. The upper end of the working shaft (11) is provided with a concave groove on one side, a limiting pin (15) for limiting the position of the adjusting bolt (14) is vertically arranged in the concave groove; one end of the adjusting bolt (14) extends into the concave groove and is provided with an annular groove, and the middle part of the limiting pin (15) is located in the annular groove.

8. The deep muscle stimulator of claim 1, wherein, The eccentric shaft (17) is fixedly provided with a step (18), the step (18) is provided with a bearing two (20) sleeved on the eccentric shaft (17), and the bearing two (20) is arranged on the eccentric connecting plate (19); the top of the eccentric shaft (17) is provided with a fastening bolt (21), and a flat washer (22) is arranged between the screw head of the fastening bolt (21) and the bearing two (20).

9. The deep muscle stimulator of claim 1, wherein, One end of the telescopic shaft (23) is provided with a connecting groove matched with the eccentric connecting plate (19), a pin shaft (24) is vertically arranged at the connecting groove, the telescopic shaft (23) is connected with the eccentric connecting plate (19) through the pin shaft (24), and a pin shaft gasket (25) is arranged between the telescopic shaft (23) and the eccentric connecting plate (19).

10. The deep muscle stimulator of claim 9, wherein the amplitude of the stimulation signal is continuously adjustable. A cover plate hole is formed in the top of the treatment head seat (6), and a cover plate (7) is detachably arranged at the cover plate hole; a lubricating copper sleeve (26) is fixedly arranged in the treatment head seat (6), and the telescopic shaft (23) is slidably arranged in the lubricating copper sleeve (26).

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