A hand-held muscle massager

Abstract

The present invention relates to a hand-held muscle massager, which comprises a massage body, a massage head, a main grip handle and a sub-grip handle, wherein the main grip handle and the sub-grip handle are simultaneously connected to the handle connection end, the hand-held muscle massager also comprises a driving motor, a piston-type motion head and a connecting rod assembly, the massage body has a body inner cavity, the body inner cavity has a motion opening, the main grip handle has a main grip handle inner cavity, the sub-grip handle has a sub-grip handle inner cavity, the body inner cavity, the main grip handle inner cavity and the sub-grip handle inner cavity are interconnected to form a ventilation and heat dissipation passage.

Description

Technical Field

[0001] The invention relates to a massager, in particular to a massager with a unique holding method and a novel heat dissipation structure. Background Art

[0002] The massager is a new generation of health massage equipment developed based on physics, bionics, bioelectricity, medicine and many years of clinical practice. It uses several independent soft-touch massage heads to relax muscles, soothe nerves, promote blood circulation, strengthen cell metabolism, and enhance skin elasticity. At the same time, it can also relieve fatigue, significantly reduce various chronic pains, acute pains and muscle soreness, relax the body, reduce stress, and reduce skin wrinkles. Especially after people complete high-intensity muscle training, massage by the massager can greatly relieve human muscle soreness and repair muscle damage.

[0003] Among the many massager products, handheld massagers are the most widely used, such as Figure 1-2 Shown are two typical handheld massagers.

[0004] Figure 1 The handheld massager shown mainly comprises a body 1 and a handle 2. A massage head 3 is arranged at the front end of the body 1. A motor, a battery and other components are centrally assembled in the body 1. When in use, the user holds the handle 2 and presses the massage head 3 against the human body to perform massage. Figure 1 The handheld massager shown in the figure still has many disadvantages when it is used, which are described as follows. First, since the user can only hold the handle 2 with one hand to hold and massage, there is bound to be insufficient holding and pressing force, which affects the massage effect. Secondly, since the main components of this type of massager are concentrated in the body 1, and there is no relevant heat dissipation structure in the body 1, the product often overheats when used for a long time, which affects the product life and user experience.

[0005] Figure 2 The figure shows a simple handheld massager, in which the handle 4 and the body 5 are connected to form a whole. The massager also has the above-mentioned shortcomings of insufficient holding and pressing force, poor massage effect and unsatisfactory heat dissipation effect.

[0006] It is worth emphasizing here that in order to overcome the disadvantage of poor heat dissipation of massagers, traditional handheld massagers will have heat dissipation holes on their bodies and handles to achieve the effect of ventilation and heat dissipation. However, in practice, most fitness people will choose to use massagers to massage and relax their muscle groups after strenuous exercise. At this time, a large amount of sweat will remain on the user's body and palms. The user's sweat will often enter the massager through the heat dissipation holes, and then contaminate the motor, coil, control board and other electronic components inside the massager, causing short circuits, burning and other faults, and there are safety hazards. Summary of the invention

[0007] The present invention provides a hand-held muscle massager, which includes a body, a massage head and a driving rod. The body has an inner cavity and an opening, and the opening is connected to one end of the inner cavity. A heat dissipation airflow channel is formed at the opening. The present invention arranges the heat dissipation airflow channel at the front end of the body, which can prevent sweat from entering the massager through the heat dissipation holes and contaminating the motor, coil, control board and other electronic components inside the massager, avoiding short circuit, burning and other faults, and eliminating safety hazards. This is the main purpose of the present invention.

[0008] The present invention provides a hand-held muscle massager, which includes a massage body, a massage head, a main grip handle and an auxiliary grip handle. The massage body, the main grip handle and the auxiliary grip handle are connected to form a whole. A smooth pressing and holding surface is formed at the intersection of the massage body, the main grip handle and the auxiliary grip handle. A user can hold the smooth pressing and holding surface to perform a downward pressure massage. The user can also press the smooth pressing and holding surface with one hand to perform a downward pressure massage. The present invention avoids the structural design of the rear boss at the rear end of the traditional massager through the design concept of the smooth pressing and holding surface, and can make the user's palm press comfortably on the rear part of the massager. While improving the use experience, it is convenient for the user to apply force and improve the massage effect. This is another purpose of the present invention.

[0009] The technical solution adopted by the present invention is: a hand-held muscle massager, comprising a massage body (10), a massage head (20), a main grip handle (30) and a secondary grip handle (40), wherein the massage body (10) has a massage head assembly end (11) and a handle connection end (12), the massage head (20) is assembled in the massage head assembly end (11), the main grip handle (30) and the secondary grip handle (40) are simultaneously connected to the handle connection end (12), the massage body (10), the main grip handle (30) and the secondary grip handle (40) are connected to form a whole, and a smooth pressing grip surface (50) is formed at the intersection of the massage body (10), the main grip handle (30) and the secondary grip handle (40), and a user can hold the smooth pressing grip surface (50) to perform downward massage.

[0010] A hand-held muscle massager comprises a body (510), a massage head (520) and a driving rod (530); the body (510) has an inner cavity (511) and an opening (512); the opening (512) is arranged in communication with one end of the inner cavity (511); the driving rod (530) is arranged in the inner cavity (511); the massage head (520) is connected to the end of the driving rod (530); and the massage head (520) is located in the opening (512). ), the driving rod (530) reciprocates and drives the massage head (520) to reciprocate in the opening (512), a heat dissipation airflow channel (600) is formed at the opening (512), and the external air of the body (510) is sucked into the inner cavity (511) through the heat dissipation airflow channel (600) through the reciprocating movement of the driving rod (530), and then discharged from the heat dissipation airflow channel (600) through the reciprocating movement of the driving rod (530).

[0011] The beneficial effects of the present invention are as follows: when the present invention is used, the user holds the main grip and the auxiliary grip with both hands at the same time and presses the massage head on the human body for massage, and the user can also hold the main grip or the auxiliary grip with one hand for massage. At the same time, the user can hold the smooth pressing grip surface for downward massage, and the user can also press the smooth pressing grip surface with one hand for downward massage. The present invention avoids the structural design of the rear boss at the rear end of the traditional massager through the design concept of the smooth pressing grip surface, and can make the user's palm press comfortably on the rear part of the massager, which not only improves the use experience, but also facilitates the user to apply force and improves the massage effect.

[0012] In addition, the present invention draws external air into the ventilation and heat dissipation passage from the movement opening through the reciprocating motion of the piston-type moving head. After the external air absorbs heat in the ventilation and heat dissipation passage, it is pumped out of the ventilation and heat dissipation passage with the help of the reciprocating motion of the piston-type moving head, so as to achieve the effect of dissipating heat for various components in the ventilation and heat dissipation passage.

[0013] At the same time, the present invention has an adaptive adjustment structural gap at the connection position between the connecting rod assembly and the piston moving head. When the driving motor drives the piston moving head to move through the connecting rod assembly, first, the driving motor drives the connecting rod assembly to move, and at the same time, the connecting rod assembly drives the piston moving head to move. At this moment, the driving force of the connecting rod assembly acting on the piston moving head automatically adjusts the adaptive adjustment structural gap, so that the connecting rod assembly and the piston moving head can naturally adjust the connection position relationship between the two with the help of the driving force, thereby making the overall transmission relationship smoother and avoiding the occurrence of jamming, hard friction and heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1-2 It is a schematic diagram of the structure of a traditional massager.

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 4 It is a schematic diagram of the use state of the present invention.

[0017] Figure 5 This is a heat dissipation schematic diagram of the first ventilation and heat dissipation path of the present invention.

[0018] Figure 6 This is a heat dissipation schematic diagram of the second ventilation and heat dissipation path of the present invention.

[0019] Figure 7 It is a schematic cross-sectional structure diagram of the drive motor, piston motion head and connecting rod assembly of the present invention.

[0020] Figure 8 It is a top view of the driving motor, piston motion head and connecting rod assembly of the present invention.

[0021] Fig. 9 It is a three-dimensional exploded schematic diagram of the present invention.

[0022] Fig.10 It is a schematic structural diagram of the detachable connecting unit of the present invention.

[0023] Fig.11 It is a schematic diagram of the working principle of the heat dissipation airflow channel of the present invention.

[0024] Figure 12-14 FIG. 1 is a schematic diagram showing the position of a heat dissipation airflow channel embodiment of the present invention.

[0025] Fig.15 It is a schematic structural diagram of the driving rod and the sleeve of the present invention. DETAILED DESCRIPTION

[0026] like Figures 3 to 10 As shown, a hand-held muscle massager includes a massage body 10, a massage head 20, a main grip handle 30 and an auxiliary grip handle 40.

[0027] like Figures 3 to 4 As shown, the massage body 10 has a massage head assembly end 11 and a handle connection end 12.

[0028] During specific implementation, the massage head assembly end 11 and the handle connection end 12 are respectively located at the front and rear ends of the massage body 10 .

[0029] The massage head 20 is assembled in the massage head assembly end 11 .

[0030] The main grip handle 30 and the auxiliary grip handle 40 are connected to the handle connection end 12 at the same time. The massage body 10 , the main grip handle 30 and the auxiliary grip handle 40 are connected to form a whole.

[0031] like Figure 4 As shown, when in use, the user holds the main handle 30 and the auxiliary handle 40 with both hands and presses the massage head 20 on the human body for massage. The user can also hold the main handle 30 or the auxiliary handle 40 with one hand for massage.

[0032] A smooth pressing grip surface 50 is formed at the intersection of the massage body 10, the main grip handle 30 and the auxiliary grip handle 40. The user can hold the smooth pressing grip surface 50 to perform a downward pressure massage, or the user can press the smooth pressing grip surface 50 with one hand to perform a downward pressure massage.

[0033] The present invention avoids the structural design of the rear boss at the rear end of the traditional massager through the design concept of the smooth pressing grip surface 50, and can make the user's palm press comfortably on the rear of the massager, which not only improves the user experience, but also facilitates the user to apply force and improves the massage effect.

[0034] A main angle 51 is formed between the massage body 10 and the main handle 30 , a secondary angle 52 is formed between the massage body 10 and the secondary handle 40 , and a handle angle 53 is formed between the main handle 30 and the secondary handle 40 .

[0035] In practice, the overall structure of the product can be specifically defined by changing the angles defining the above three angles. A preferred implementation is described below.

[0036] The main angle 51 is greater than ninety degrees and less than or equal to one hundred and thirty-five degrees, the secondary angle 52 is ninety degrees, and the handle angle 53 is greater than one hundred and thirty-five degrees and less than or equal to one hundred and eighty degrees.

[0037] In a specific implementation, the handle angle 53 is equal to one hundred and eighty degrees, and the smooth pressing and holding surface 50 is a vertical surface, for example, it can be the outer surface of a cylinder.

[0038] like Figures 3 to 9 As shown, the hand-held muscle massager also includes a driving motor 110, a piston-type motion head 120 and a connecting rod assembly 130. The massage body 10 has a body inner cavity 61, and the body inner cavity 61 has a motion opening 62. The main grip handle 30 has a main grip handle inner cavity 63, and the auxiliary grip handle 40 has an auxiliary grip handle inner cavity 64.

[0039] The body inner cavity 61 , the main grip inner cavity 63 and the auxiliary grip inner cavity 64 are interconnected to form a ventilation and heat dissipation passage.

[0040] The driving motor 110, the piston moving head 120 and the connecting rod assembly 130 are simultaneously arranged in the ventilation and heat dissipation passage.

[0041] The massage head 20 is mounted on the piston-type moving head 120 , and the piston-type moving head 120 is located in the movement opening 62 .

[0042] The connecting rod assembly 130 is connected between the driving motor 110 and the piston-type moving head 120 . The driving motor 110 drives the piston-type moving head 120 to reciprocate at a high speed in the moving opening 62 through the connecting rod assembly 130 .

[0043] Through the reciprocating motion of the piston-type moving head 120, external air is sucked into the ventilation and heat dissipation passage from the moving opening 62. After the external air absorbs heat in the ventilation and heat dissipation passage, it is pumped out from the ventilation and heat dissipation passage with the help of the reciprocating motion of the piston-type moving head 120, so as to achieve the effect of dissipating heat for various components in the ventilation and heat dissipation passage.

[0044] In a specific implementation, the hand-held muscle massager further includes a battery assembly 140, and the battery assembly 140 is also disposed in the ventilation and heat dissipation passage.

[0045] During specific implementation, the drive motor 110 can be disposed in the inner cavity 63 of the main grip handle or the inner cavity 64 of the auxiliary grip handle, the battery assembly 140 can also be disposed in the inner cavity 63 of the main grip handle or the inner cavity 64 of the auxiliary grip handle, and the piston-type motion head 120 and the connecting rod assembly 130 are disposed in the inner cavity 61 of the main body.

[0046] In specific implementation, ventilation and heat dissipation using the ventilation and heat dissipation passage can be performed in the following specific manner.

[0047] like Figure 5 As shown, in method one, the moving opening 62 is simultaneously the air inlet and the air outlet of the ventilation and heat dissipation passage, and the external air is sucked into the ventilation and heat dissipation passage from the moving opening 62 through the reciprocating motion of the piston-type moving head 120, and then the external air absorbs heat in the ventilation and heat dissipation passage and is pumped out from the moving opening 62 again with the help of the reciprocating motion of the piston-type moving head 120, so as to achieve the effect of dissipating heat for various components in the ventilation and heat dissipation passage.

[0048] like Figure 6 As shown, in the second method, the movement opening 62 is the air inlet of the ventilation and heat dissipation passage, and the ventilation and heat dissipation passage has an air outlet 65 , and the air outlet 65 is arranged on the main grip handle 30 or the auxiliary grip handle 40 .

[0049] Through the reciprocating motion of the piston-type moving head 120, external air is sucked into the ventilation and heat dissipation passage from the moving opening 62. After the external air absorbs heat in the ventilation and heat dissipation passage, it is pumped out from the air outlet 65 with the help of the reciprocating motion of the piston-type moving head 120, so as to achieve the effect of dissipating heat for various components in the ventilation and heat dissipation passage.

[0050] In a specific implementation, the air outlet 65 is disposed on the top of the auxiliary grip 40 , and the drive motor 110 is disposed in the inner cavity 64 of the auxiliary grip, so that the ventilation and heat dissipation passage mainly dissipates the heat of the drive motor 110 .

[0051] At the same time, the main circuit board 111 is also disposed in the inner cavity 64 of the auxiliary grip. In a preferred embodiment, the main circuit board 111 is disposed above the drive motor 110 and is fixedly connected below the air outlet 65 .

[0052] Method three: the movement opening 62 is the air inlet of the ventilation and heat dissipation passage, and the ventilation and heat dissipation passage has an air outlet 65 , and the air outlet 65 is disposed on both the main grip 30 and the auxiliary grip 40 .

[0053] Through the reciprocating motion of the piston-type moving head 120, external air is sucked into the ventilation and heat dissipation passage from the moving opening 62. After the external air absorbs heat in the ventilation and heat dissipation passage, it is pumped out from the air outlet 65 with the help of the reciprocating motion of the piston-type moving head 120, so as to achieve the effect of dissipating heat for various components in the ventilation and heat dissipation passage.

[0054] In a specific implementation, a preferred embodiment is that the air outlet 65 is disposed on the top of the auxiliary grip 40 , and at the same time, the air outlet 65 is also disposed on one side of the main grip 30 .

[0055] The air outlet 65 may also be disposed at the top of the secondary grip 40 , and at the same time, the air outlet 65 is disposed at the bottom of the main grip 30 .

[0056] The air outlet 65 may also be disposed on the sides of the main grip 30 and the auxiliary grip 40 at the same time.

[0057] In methods one, two, and three, the drive motor 110 and the battery assembly 140 can be respectively disposed in the main grip handle 30 and the auxiliary grip handle 40 , or the drive motor 110 and the battery assembly 140 can be simultaneously disposed in the main grip handle 30 or the auxiliary grip handle 40 .

[0058] like Figures 7 to 8As shown, in a specific implementation, the connecting rod assembly 130 is connected between the driving motor 110 and the piston moving head 120 , and the driving motor 110 drives the piston moving head 120 to reciprocate at high speed in the moving opening 62 through the connecting rod assembly 130 .

[0059] An adaptive adjustment structural gap 200 is provided at the connection position between the connecting rod assembly 130 and the piston moving head 120 .

[0060] When the driving motor 110 drives the piston moving head 120 to move through the connecting rod assembly 130, first, the driving motor 110 drives the connecting rod assembly 130 to move, and at the same time, the connecting rod assembly 130 drives the piston moving head 120 to move. At this moment, the driving force of the connecting rod assembly 130 acting on the piston moving head 120 automatically adjusts the adaptive adjustment structure gap 200, so that the connecting rod assembly 130 and the piston moving head 120 can naturally adjust the connection position relationship between the two with the help of the driving force, thereby making the overall transmission relationship smoother and avoiding the occurrence of jamming, hard friction and heat.

[0061] In practice, if the adaptive adjustment structure gap 200 does not exist, the connecting rod assembly 130 and the piston moving head 120 must be locked and fixedly connected. At this time, if there is a slight assembly error during assembly, hard friction will inevitably occur due to the uneven transmission relationship, which will in turn generate a lot of working noise that affects the user experience and greatly reduces the product life.

[0062] During specific implementation, a cam 112 is sleeved on the output shaft of the driving motor 110, and the connecting rod assembly 130 is a rigid connecting rod, one end of which is fixedly locked on the cam 112, and the other end of the rigid connecting rod is pivotally connected to the piston-type moving head 120. The adaptive adjustment structure gap 200 is located at the position where the rigid connecting rod and the piston-type moving head 120 are pivotally connected.

[0063] In practice, a pivot groove 121 is provided at one end of the piston-type moving head 120 , the rigid connecting rod is inserted into the pivot groove 121 , and the pivot bolt 122 pivots the rigid connecting rod in the pivot groove 121 .

[0064] The adaptive adjustment structure gap 200 is simultaneously located between the top surface of the rigid link and the top surface of the pivot slot 121 , and between the bottom surface of the rigid link and the bottom surface of the pivot slot 121 .

[0065] like Figures 9 to 10 As shown, in a specific implementation, the massage head 20 is assembled on the piston-type motion head 120 via a detachable connection unit 300 .

[0066] In practice, the massage head 20 can be a massage head of various shapes.

[0067] The detachable connection unit 300 includes a toilet plug 310 , and the massage head 20 is detachably mounted on the toilet plug 310 , wherein the massage head 20 has a disassembly groove 311 , and a plurality of snap rings 312 are arranged around the toilet plug 310 .

[0068] When the toilet plug 310 is inserted into the disassembly groove 311 , the longitudinal relative positions of the massage head 20 and the toilet plug 310 are fixed by means of a plurality of the clamping rings 312 , so that the massage head 20 will not fall off the toilet plug 310 easily.

[0069] A positioning groove 313 is recessed on the outer surface of the toilet plug 310 along the longitudinal direction of the toilet plug 310. The positioning groove 313 can fix the lateral relative position of the massage head 20 and the toilet plug 310 so that the massage head 20 will not rotate on the toilet plug 310, thereby improving the user experience.

[0070] The detachable connection unit 300 further includes a connection front nozzle 320 , in which the toilet plug 310 is inserted. The connection front nozzle 320 is provided with an insertion hole 321 , in which the toilet plug 310 is inserted.

[0071] A connecting sleeve assembly 330 is sleeved on the toilet plug 310 , and the connecting sleeve assembly 330 is located between the toilet plug 310 and the insertion hole 321 .

[0072] The insertion hole 321 has a smooth inner hole wall, and the connecting sleeve assembly 330 has a smooth outer connecting surface 331 corresponding to the smooth inner hole wall.

[0073] The smooth outer connection surface 331 and the inner wall of the smooth hole are fitted together to form a vacuum connection relationship, so as to improve the stability of the toilet plug 310 inserted in the front connection nozzle 320.

[0074] In a specific implementation, the connecting sleeve assembly 330 includes a connecting sleeve 332 and a connecting ring 333 , and the outer surface of the connecting sleeve 332 and the outer surface of the connecting ring 333 constitute the smooth outer connecting surface 331 .

[0075] like Figures 11 to 15 As shown, a hand-held muscle massager includes a body 510 , a massage head 520 and a driving rod 530 , wherein the body 510 has an inner cavity 511 and an opening 512 , and the opening 512 is connected to one end of the inner cavity 511 .

[0076] The driving rod 530 is disposed in the inner cavity 511 , and the massage head 520 is connected to the end of the driving rod 530 . Meanwhile, the massage head 520 is located in the opening 512 .

[0077] The driving rod 530 reciprocates and drives the massage head 520 to reciprocate in the opening 512, so that the massage head 520 repeatedly strikes the human body to massage the muscles of the human body.

[0078] A heat dissipation air flow channel 600 is formed at the opening 512 .

[0079] The external air of the main body 510 is sucked into the inner cavity 511 through the heat dissipation air flow channel 600 through the reciprocating motion of the driving rod 530, and then discharged from the heat dissipation air flow channel 600 through the reciprocating motion of the driving rod 530, thereby realizing the circulation of air flow, thereby achieving the effect of ventilation and heat dissipation of the components in the inner cavity 511 of the main body 510.

[0080] In practice, most fitness people will choose to use a massager to massage and relax their muscle groups after strenuous exercise. At this time, a large amount of sweat will remain on the user's body surface and palms. The present invention sets the heat dissipation airflow channel 600 at the front end of the main body 510, which can prevent sweat from entering the massager through the heat dissipation holes and contaminating the motor, coil, control board and other electronic components inside the massager, avoiding short circuits, burning and other faults, and eliminating safety hazards.

[0081] During specific implementation, the driving rod 530 is provided with an air intake and exhaust assisting structure, which can improve the air intake and exhaust efficiency of the driving rod 530, increase the flow speed of the airflow in the heat dissipation airflow channel 600 and the inner cavity 511, and improve the heat dissipation effect.

[0082] In practice, there are a variety of implementations that can support the functions of the air intake and exhaust structure, which are now described as follows.

[0083] like Fig.15 As shown, the assisted air intake and exhaust structure can be a plurality of fan blades 531, and the plurality of fan blades 531 are divided into air intake fan blades and exhaust fan blades. When the driving rod 530 moves inward and drives the massage head 520 to move inward, the air intake fan blades can improve the air intake efficiency of the driving rod 530. When the driving rod 530 moves outward and drives the massage head 520 to move outward, the exhaust fan blades can improve the exhaust efficiency of the driving rod 530.

[0084] The air intake and exhaust assisting structure may also be a fin structure, a blade structure, a convex piece structure, a boss structure, etc.

[0085] The air intake and exhaust assisting structure may also be an air flow groove structure, a hole structure, etc.

[0086] During specific implementation, the driving rod 530 performs a back-and-forth reciprocating motion in the inner cavity 511 .

[0087] During specific implementation, the driving rod 530 is driven by the motor 550 to perform reciprocating motion, and the driving rod 530 may also be driven by other driving devices, such as air pressure, hydraulic cylinder, etc.

[0088] In a specific implementation, components such as batteries and control circuit boards are simultaneously arranged in the inner cavity 511.

[0089] In specific implementation, there are multiple implementations to form the heat dissipation airflow channel 600, such as Figure 11-14 shown.

[0090] like Fig.15 As shown, in a specific implementation, the front end of the driving rod 530 is connected to a sleeve 540, and the massage head 520 is detachably inserted in the sleeve 540. When in use, different massage heads 520 can be selected according to needs and inserted into the sleeve 540 to achieve different massage effects. An exhaust hole 541 is provided on the sleeve 540. When the massage head 520 is inserted into the sleeve 540, the air in the sleeve 540 can be discharged through the exhaust hole 541 to facilitate the installation and disassembly of the massage head 520.

Claims

1. A hand-held muscle massager, characterized in that: The massage body (10) comprises a massage body (10), a massage head (20), a main grip handle (30) and a secondary grip handle (40), wherein the massage body (10) comprises a massage head assembly end (11) and a handle connection end (12), the massage head (20) is assembled in the massage head assembly end (11), the main grip handle (30) and the secondary grip handle (40) are simultaneously connected to the handle connection end (12), the massage body (10), the main grip handle (30) and the secondary grip handle (40) are connected to form a whole, and a smooth pressing grip surface (50) is formed at the intersection of the massage body (10), the main grip handle (30) and the secondary grip handle (40), and a user can hold the smooth pressing grip surface (50) to perform downward massage, The hand-held muscle massager further comprises a driving motor (110), a piston-type motion head (120) and a connecting rod assembly (130); the massage body (10) comprises a body inner cavity (61); the body inner cavity (61) comprises a motion opening (62); the main grip handle (30) comprises a main grip handle inner cavity (63); the auxiliary grip handle (40) comprises an auxiliary grip handle inner cavity (64); the body inner cavity (61), the main grip handle inner cavity (63) and the auxiliary grip handle inner cavity (64) are interconnected to form a ventilation and heat dissipation passage; The movement opening (62) is arranged at the front end of the massage body (10). The driving motor (110), the piston-type moving head (120), and the connecting rod assembly (130) are simultaneously arranged in the ventilation and heat dissipation passage; the massage head (20) is mounted on the piston-type moving head (120); and the piston-type moving head (120) is located in the moving opening (62). The connecting rod assembly (130) is connected between the driving motor (110) and the piston-type moving head (120); the driving motor (110) drives the piston-type moving head (120) to reciprocate in the moving opening (62) via the connecting rod assembly (130). The reciprocating motion of the piston-type moving head (120) draws external air from the moving opening (62) into the ventilation and heat dissipation passage, and then, after the external air absorbs heat in the ventilation and heat dissipation passage, it is pumped out of the ventilation and heat dissipation passage by means of the reciprocating motion of the piston-type moving head (120). The hand-held muscle massager further comprises a battery assembly (140), which is also arranged in the ventilation and heat dissipation passage. The moving opening (62) is simultaneously the air inlet and the air outlet of the ventilation and heat dissipation passage. The external air is sucked into the ventilation and heat dissipation passage only from the moving opening (62) through the reciprocating motion of the piston-type moving head (120). After the external air absorbs heat in the ventilation and heat dissipation passage, it is pumped out from the moving opening (62) again with the help of the reciprocating motion of the piston-type moving head (120).

2. A hand-held muscle massager as claimed in claim 1, characterized in that: An adaptive adjustment structural gap (200) is provided at the connection position between the connecting rod assembly (130) and the piston-type moving head (120). When the driving motor (110) drives the piston moving head (120) to move via the connecting rod assembly (130), first, the driving motor (110) drives the connecting rod assembly (130) to move, and at the same time, the connecting rod assembly (130) drives the piston moving head (120) to move. At this moment, the driving force of the connecting rod assembly (130) acting on the piston moving head (120) automatically adjusts the adaptive adjustment structure gap (200), so that the connecting rod assembly (130) and the piston moving head (120) can adjust the connection position relationship between the two with the help of the driving force.

3. A hand-held muscle massager as claimed in claim 2, characterized in that: The output shaft of the driving motor (110) is sleeved with a cam (112); the connecting rod assembly (130) is a rigid connecting rod; one end of the rigid connecting rod is fixedly locked on the cam (112); the other end of the rigid connecting rod is pivotally connected to the piston-type moving head (120); the adaptive adjustment structure gap (200) is located at a position where the rigid connecting rod and the piston-type moving head (120) are pivotally connected. A pivot groove (121) is provided at one end of the piston-type moving head (120), the rigid connecting rod is inserted into the pivot groove (121), and the pivot bolt (122) pivots the rigid connecting rod in the pivot groove (121). The adaptive adjustment structure gap (200) is simultaneously located between the top surface of the rigid connecting rod and the top surface of the pivot groove (121), and between the bottom surface of the rigid connecting rod and the bottom surface of the pivot groove (121).

4. A hand-held muscle massager as claimed in claim 1, characterized in that: The massage head (20) is assembled on the piston-type motion head (120) via a detachable connection unit (300). The detachable connection unit (300) comprises a toilet plug (310), and the massage head (20) is detachably mounted on the toilet plug (310), wherein the massage head (20) has a disassembly groove (311), and a plurality of snap rings (312) are arranged on the toilet plug (310). When the toilet plug (310) is inserted into the removal groove (311), the longitudinal relative positions of the massage head (20) and the toilet plug (310) are fixed by means of a plurality of the clamping rings (312). A positioning groove (313) is concavely provided on the outer surface of the toilet plug (310) along the longitudinal direction of the toilet plug (310); the positioning groove (313) can fix the lateral relative position of the massage head (20) and the toilet plug (310) so that the massage head (20) will not rotate on the toilet plug (310).

5. A hand-held muscle massager, comprising a body (510), a massage head (520) and a driving rod (530), characterized in that: The body (510) comprises an inner cavity (511) and an opening (512); the opening (512) is arranged in communication with one end of the inner cavity (511); the driving rod (530) is arranged in the inner cavity (511); the massage head (520) is connected to the end of the driving rod (530); at the same time, the massage head (520) is located in the opening (512); the driving rod (530) reciprocates and drives the massage head (520) to reciprocate in the opening (512); a heat dissipation airflow channel (600) is formed at the opening (512); the heat dissipation airflow channel (600) is arranged at the front end of the body (510); The external air of the body (510) is sucked into the inner cavity (511) only through the heat dissipation airflow channel (600) through the reciprocating motion of the driving rod (530), and then discharged from the heat dissipation airflow channel (600) through the reciprocating motion of the driving rod (530).

6. A hand-held muscle massager as claimed in claim 5, characterized in that: The driving rod (530) is provided with an air intake and exhaust assisting structure.

7. A hand-held muscle massager as claimed in claim 5, characterized in that: The front end of the driving rod (530) is connected to a sleeve (540), the massage head (520) is detachably inserted into the sleeve (540), and an exhaust hole 541 is provided on the sleeve (540).

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