Massage head assembly with non-detachable massage head in use process and fascia gun

Abstract

The utility model relates to a massage head assembly and a fascia gun, the massage head assembly is applied to the fascia gun, a connecting rod connected with a driving assembly is arranged in the fascia gun, the fascia gun comprises a massage head and a connecting rod, and one end of the massage head and the connecting rod are integrally formed; the end, away from the massage head, of the connecting rod is connected with the connecting rod, and the joint is located in the fascia gun. The fascia gun comprises a main body and the massage head assembly. The fascia gun can simplify the production and maintenance process, improve the transmission efficiency between the massage head and the connecting rod, and ensure the service life of the massage head.

Description

Technical Field

[0001] The utility model relates to the field of fascia guns, in particular to a massage head assembly of which the massage head cannot be disassembled during use and a fascia gun. Background Art

[0002] The fascia gun is a common massage device that relaxes muscle tissue, promotes blood circulation, and relieves muscle pain and tension through high-frequency vibration. The massage head is an important component of the fascia gun, and its structural design directly affects the massage effect and user experience. In order to meet different massage needs, in the traditional fascia gun design, a plug-in massage head is usually used. Users can replace different massage heads as needed to meet different massage needs. However, this design method easily causes the massage head to fall off during use, which increases the complexity of production and maintenance, and may also affect the transmission efficiency between the massage head and the connecting rod. Utility Model Content

[0003] The utility model provides a massage head assembly and a fascia gun whose massage head cannot be disassembled during use, which can simplify the production and maintenance process, improve the transmission efficiency between the massage head and the connecting rod, and ensure the service life of the massage head.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A massage head assembly with a non-detachable massage head during use, applied to a fascia gun, wherein a connecting rod connected to a driving assembly is provided in the fascia gun, comprising a massage head and a connecting rod, wherein one end of the massage head is integrally formed with the connecting rod;

[0006] One end of the connecting rod away from the massage head is connected to the connecting rod, and the connection point between the two is located inside the fascia gun.

[0007] Preferably, a fixing piece is further included, a first connecting hole is provided at one end of the connecting rod close to the connecting rod, the end of the connecting rod close to the connecting rod is marked as a mounting rod, a second connecting hole is provided at the side wall of the mounting rod close to the connecting rod, the fixing piece passes through the second connecting hole and the first connecting hole in sequence, and is fixed to the mounting rod and the connecting rod respectively, so as to realize the connection between the connecting rod and the connecting rod.

[0008] Preferably, one end of the connecting rod away from the massage head is integrally formed with the connecting rod.

[0009] Preferably, an auxiliary massage piece is also included, and the auxiliary massage piece includes an auxiliary head and a connecting column connected to the auxiliary head. The connecting column and the massage head are detachably connected to transmit the force of the massage head to the auxiliary massage piece to perform massage.

[0010] Preferably, it further comprises a connecting assembly, the connecting assembly comprises a limit pin and an elastic member, the limit pin is connected to the elastic member, the connecting rod is provided with a receiving space, the side wall of the connecting rod is provided with a limit hole communicating with the receiving space, the elastic member is arranged in the receiving space, and the limit pin is arranged in the limit hole;

[0011] A mounting hole is provided at one end of the connecting column facing the massage head, and a limiting groove is provided in the mounting hole. When the auxiliary massage component is installed on the massage head, the massage head is inserted into the mounting hole, and the limiting pin in the limiting hole is squeezed by the inner wall of the mounting hole and shrinks in the limiting hole, and squeezes the elastic component. Then, when the limiting hole is directly opposite to the limiting groove, the limiting pin is inserted into the limiting groove under the action of the restoring force of the elastic component.

[0012] Preferably, the elastic member is a V-shaped elastic member, two limit pins are provided, and both are provided with a small hole, and two ends of the V-shaped elastic member are respectively inserted into the small holes of the limit pin.

[0013] Preferably, the outer side wall of the connecting rod is provided with a groove, the connecting rod is further provided with a cantilever suspended from the groove, the outer side wall of the cantilever is provided with a limiting protrusion, the end of the mounting rod facing the massage head is provided with a mounting hole, and the mounting hole is provided with a limiting groove;

[0014] During the process of installing the auxiliary massage part on the massage head, the massage head is inserted into the mounting hole, the limiting protrusion abuts against the inner wall of the mounting hole, and the cantilever is deformed toward the groove, and then, when the limiting protrusion is facing the limiting groove, the limiting protrusion is inserted into the limiting groove under the action of the restoring force of the cantilever.

[0015] Preferably, the outer wall of the connecting rod close to the massage head is provided with an external thread, the end of the connecting column facing the massage head is provided with a mounting hole, and the mounting hole is provided with an internal thread matching the external thread.

[0016] Preferably, it further comprises an elastic limiting member, the connecting rod is provided with a first mounting groove, and the elastic limiting member is sleeved in the first mounting groove;

[0017] When connected, the massage head and the connecting rod are inserted into the mounting hole of the auxiliary massage member, and the elastic limiting member is interference-fitted with the mounting hole.

[0018] A fascia gun comprises a main body and the above-mentioned massage head assembly, wherein the above-mentioned main body comprises a main housing, a battery, a motor and a driving assembly, wherein the above-mentioned battery and the above-mentioned motor are arranged in the above-mentioned main housing and are electrically connected, and the output shaft of the above-mentioned motor is connected to an end of the above-mentioned connecting rod away from the above-mentioned massage head through the above-mentioned driving assembly;

[0019] The above-mentioned main shell includes a head cover, an upper shell, a lower shell, a tail cover and a handle shell. The connection between the above-mentioned connecting rod and the above-mentioned connecting rod is located in the above-mentioned head cover. The above-mentioned lower shell is arranged above the above-mentioned handle shell. The above-mentioned upper shell and the above-mentioned lower shell are connected to form a main cavity. The front end and the rear end of the above-mentioned main cavity are provided with through holes. The above-mentioned head cover is connected to the through hole at the front end of the main cavity, and the above-mentioned tail cover is arranged at the through hole at the rear end of the main cavity; the above-mentioned upper shell is convex to form a hump directly above the motor, and the above-mentioned hump includes a front slope and a rear slope. The above-mentioned front slope is sequentially provided with a plurality of transverse heat dissipation holes for heat dissipation along the projection line of the transverse axis of the above-mentioned main cavity on the front slope, and the above-mentioned rear slope is provided with a plurality of longitudinal heat dissipation holes for heat dissipation along the direction perpendicular to the projection line of the transverse axis of the above-mentioned main cavity on the rear slope.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The massage head and the connecting rod are fixed first, and then after the fascia gun is installed, the connection between the connecting rod and the connecting rod is located inside the fascia gun, ensuring that the massage head cannot be disassembled during the use of the fascia gun. This can simplify the production and maintenance process, improve the transmission efficiency between the massage head and the connecting rod, and ensure the service life of the massage head. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The massage head assembly of the embodiment of the utility model is exploded as a whole Figure 1 (Connection method with elastic member and elastic pin);

[0024] Figure 2 The massage head assembly of the utility model is exploded as a whole. Figure 2 (Connection method with elastic member and elastic pin);

[0025] Figure 3 This is a schematic diagram of the overall massage head assembly of the embodiment of the utility model (with a connection method of elastic parts and elastic pins);

[0026] Figure 4 This is a schematic diagram of an elastic member, an elastic pin and a massage head in an embodiment of the utility model;

[0027] Figure 5This is a schematic diagram of the elastic member and the elastic pin in the embodiment of the utility model installed in the accommodation space;

[0028] Figure 6 This is an overall schematic diagram of a massage head assembly with a cantilever and a groove in an embodiment of the present utility model;

[0029] Figure 7 It is an exploded schematic diagram of a massage head assembly in which a connecting column and a connecting rod are threadedly connected in an embodiment of the utility model;

[0030] Figure 8 It is an exploded schematic diagram of a massage head assembly with an elastic fixing portion in an embodiment of the present utility model;

[0031] Fig. 9 It is a schematic diagram of various auxiliary head structures in the embodiments of the utility model;

[0032] Fig.10 The utility model is a schematic diagram of the fascia gun Figure 1 ;

[0033] Fig.11 The utility model is a schematic diagram of the fascia gun Figure 2 ;

[0034] Fig.12 This is an overall cross-sectional view of the fascia gun in the utility model;

[0035] Fig.13 This is a schematic diagram of the fascia gun of the utility model (excluding the upper cover);

[0036] Fig.14 This is a schematic diagram of the inner head cover of the fascia gun in the utility model Figure 1 ;

[0037] Fig.15 This is a schematic diagram of the inner head cover of the fascia gun in the utility model Figure 2 ;

[0038] Fig.16 This is a schematic diagram of the cooperation between the head cover and the shock absorbing structure in the utility model;

[0039] Fig.17 This is a schematic diagram of the upper housing of the fascia gun of the utility model;

[0040] Fig.18 This is a top view of the upper shell of the fascia gun of the utility model;

[0041] Fig.19 This is a size and position diagram of the hump on the upper shell of the utility model;

[0042] Fig. 20 The lower shell of the fascia gun in the utility model is shown in FIG. Figure 1 ;

[0043] Fig.21 For the utility model Fig. 20 A is an enlarged schematic diagram;

[0044] Fig. 22 The lower shell of the fascia gun in the utility model is shown in FIG. Figure 2 ;

[0045] Fig.23 For the utility model Fig. 22 A magnified schematic diagram of B;

[0046] Fig.24 This is a schematic diagram of the shock absorbing component in the utility model;

[0047] Fig.25 This is a bottom view of the handle shell and battery in the utility model;

[0048] Fig.26 This is a top view of the handle shell and battery in the utility model.

[0049] Description of reference numerals:

[0050] 1. Massage head; 2. Connecting rod; 201. First connecting hole; 202. Accommodating space; 203. Limiting hole; 3. Connecting rod; 4. Mounting rod; 41. Second connecting hole; 5. Fixing piece; 6. Auxiliary massage piece; 61. Auxiliary head; 62. Connecting column; 621. Mounting hole; 622. Limiting groove; 7. Connecting assembly; 71. Limiting pin; 72. Elastic piece; 8. Groove; 9. Cantilever; 10. Limiting protrusion; 11. First mounting groove; 12. Elastic limiting piece; 13. First convex edge; 14. Second convex edge; 15. Shock-absorbing structure; 151. Hard ball; 152. Soft buffer; 16. Third convex edge;

[0051] 17. Upper shell; 171. Limiting column; 172. Upper connecting column; 173. Sealing edge; 174. Display structure mounting groove; 175. Upper baffle; 18. Lower shell; 181. Head cover connecting ring; 182. Annular mounting groove; 183. Head cover connecting hole; 184. Upper cover limiting groove; 185. Second mounting groove; 186. Lower connecting column; 1861. Mounting wall; 1862. Connecting groove; 1863. Lower connecting hole; 187. Sealing groove; 188. Lower baffle; 19. Head cover; 191. Third connecting column; 192. Annular groove; 193. Annular boss; 194. Reinforcement plate; 195. Wear-resistant ring; 196. Fourth connecting column; 197. Fastening 1. Components; 20. Hump; 2001. Horizontal heat dissipation holes; 2002. Longitudinal heat dissipation holes; 2003. Semi-circular grooves; 21. Handle shell; 2111. Fixing plate; 2112. Battery supporting base; 2113. Charging board mounting column; 22. Battery; 23. Motor; 24. Motor fixing plate; 2411. Drive groove; 25. Insulating sleeve; 26. Shock-absorbing component; 2611. Avoidance groove; 2612. Accommodation groove; 2613. Wire groove; 27. Eccentric wheel; 28. Bearing; 29. ​​Annular convex edge; 30. Display control board; 31. Tail cover; 32. Display board; 33. Arc structure; 34. Bottom cover structure; 3411. Charging cover; 3412. Charging board. DETAILED DESCRIPTION

[0052] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In order to improve the transmission efficiency during use and simplify the production and maintenance process of the massage head, such as Figure 1-9 As shown, the utility model provides a massage head assembly whose massage head cannot be disassembled during use, and is connected to the connecting rod 3 in the driving assembly in the fascia gun. Specifically, the massage head assembly includes a massage head 1 and a connecting rod 2. In order to prevent the massage head 1 from being plugged in and out at will during use, one end of the massage head 1 is integrally formed with the connecting rod 2 to form a whole, so that the massage head 1 and the connecting rod 2 cannot be separated. It should be noted that the connecting rod 2 adopts a columnar structure, and its cross-section can be triangular, rectangular, circular, cross-shaped, etc., without limitation here. Preferably, its cross-section adopts a circular shape. The massage head 1 can be a columnar structure with the same cross-section shape as the connecting rod 2, or it can be other regular or irregular shapes, such as Figure 1 The radius of the hemispherical shape should not be less than that of the connecting rod, and no specific restrictions are made here. Correspondingly, the end of the connecting rod 2 away from the massage head 1 is connected to the connecting rod 3, and the connection between the two is located inside the fascia gun. Driven by the driving assembly, the connecting rod 3 drives the massage head assembly to reciprocate, and the connection between the connecting rod 2 and the connecting rod 3 will also slide inside the fascia gun housing, and will not move outside the fascia gun housing. Therefore, during use, if the fascia gun housing is not disassembled, the connecting rod 2 and the connecting rod 3 will not be separated, ensuring that the massage head 1 cannot be disassembled during the use of the fascia gun. This design method can simplify the production and maintenance process and improve the transmission efficiency between the massage head 1 and the connecting rod 3.

[0056] Specifically, in this embodiment, if Figure 1As shown, the connecting rod 2 and the connecting rod 3 can be detachably connected; specifically, at least one first connecting hole 201 is provided at one end of the connecting rod 2 close to the connecting rod 3, and the end of the connecting rod 3 close to the connecting rod 2 is recorded as the mounting rod 4, and at least one second connecting hole 41 is provided at the end of the mounting rod 4 close to the connecting rod 2, wherein the number of the first connecting holes 201 is the same as the number of the second connecting holes 41, and the positions correspond one to one. When connecting, it is only necessary to use the fixing member 5 to pass through the second connecting hole 41 and the corresponding first connecting hole 201 in sequence, so that the end of the mounting rod 4 is abutted against the end close to the connecting rod 3, thereby The connection and fixation between the connecting rod 2 and the connecting rod 3 is realized, wherein the number of the fixing members 5 and the number of the first connecting holes 201 are the same; preferably, the plurality of first connecting holes 201 can be evenly arranged along the circumference of the axis of the connecting rod 2, and the positions of the plurality of second connecting holes 41 and the plurality of first connecting holes 201 are correspondingly arranged on the end of the mounting rod 4; in this embodiment, the fixing member 5 can be a bolt, and when the bolt passes through the second connecting hole 41 and the first connecting hole 201 in sequence, an internal thread can be formed in the corresponding first connecting hole 201, and of course, the internal thread can be directly processed in the first connecting hole 201. Of course, the connection between the connecting rod 2 and the connecting rod 3 is not limited to the specific detachable connection method disclosed above.

[0057] Preferably, in order to meet the massage needs of the user, the massage head assembly also includes an auxiliary massage piece 6, wherein the auxiliary massage piece 6 includes an auxiliary head 61 and a connecting column 62 connected to the auxiliary head 61, and the connecting column 62 and the massage head 1 are detachably connected so that the force of the massage head 1 is transmitted to the auxiliary massage piece 6 to perform massage. Preferably, the auxiliary head 61 has various shapes. Since the connecting column 62 and the massage head 1 are detachably connected, and the connection between the two is located outside the fascia gun housing, the user can freely replace the auxiliary head 61 according to the massage needs, thereby meeting the user's massage needs. In addition, in order to ensure the stability of the power transmission, the connecting column 62 is made of hard material, and the auxiliary head 61 can be made of hard material or soft material, and the auxiliary head 61 has various structures, such as Fig. 9 As shown,

[0058] In this embodiment, if Figure 1-3As shown, the connection structure of the connection column 62 and the massage head 1 is as follows: a connection assembly 7 is provided between the connection column 62 and the massage head 1, and the two are connected through the connection assembly 7; specifically, the connection assembly 7 includes a stop pin 71 and an elastic member 72, and correspondingly, a receiving space 202 is provided on the side wall of the connection rod 2 close to the connecting rod 3, and a stop hole 203 communicating with the receiving space 202 is provided on the outer peripheral side wall of the connection rod 2; after the stop pin 71 and the elastic member 72 are installed, the elastic member 72 is located in the receiving space 202, the stop pin 71 is located in the stop hole 203, and the free end of the elastic member 72 is connected to one end of the stop pin 71, so that the other end of the stop pin 71 will protrude from the stop hole 203. Correspondingly, a mounting hole 621 matching with the massage head 1 is provided at one end of the connection column 62 facing the massage head 1, and a stop groove 622 matching with the stop pin 71 is provided on the side wall of the mounting hole 621. The process of installing the auxiliary massage part 6 on the massage head 1 is as follows: the connecting rod 2 is inserted into the mounting hole 621 along with the massage head 1, and the limiting pin 71 in the limiting hole 203 is squeezed by the inner wall of the mounting hole 621 and shrinks in the limiting hole 203, and squeezes the elastic member 72, and then when the limiting hole 203 is directly opposite to the limiting groove 622, the limiting pin 71 is inserted into the limiting groove 622 under the restoring force of the elastic member 72, thereby completing the axial limiting of the massage head 1 in the mounting hole 621, and the connection between the connecting column 62 and the massage head 1 is completed. Preferably, the limiting end of the limiting pin 71 is a spherical structure, and when the auxiliary head 61 needs to be disassembled, it is only necessary to increase the external force so that the limiting pin 71 is separated from the limiting groove 622. Of course, in another embodiment, the accommodating space 202 can be set on the outer side wall of the connecting rod 2, and correspondingly, the connecting rod 2 and the mounting rod 4 can be detachable or integrally arranged.

[0059] Preferably, if Figure 4-5 As shown, the elastic member 72 is a V-shaped elastic member 72, and correspondingly, two limit pins 71 are provided, and small holes are opened at the bottom of each of the two limit pins 71. The two free ends of the V-shaped elastic member 72 are respectively inserted into the small holes of the two limit pins 71, thereby completing the connection between the limit pin 71 and the V-shaped elastic member 72. Correspondingly, two limit holes 203 are provided, and the two limit holes 203 are symmetrically arranged about the axis of the connecting rod 2. There are two limit grooves 622, and the two limit grooves 622 are symmetrically arranged about the axis of the mounting hole 621. In this way, the two limit pins 71 are respectively located in the two limit holes 203, so that when the V-shaped elastic member 72 or external force cooperates with the two limit grooves 622, the two limit pins 71 can be evenly stressed, the massage head 1 can be more easily inserted into the mounting hole 621, and the axial limit of the massage head 1 is more stable; preferably, the limit groove 622 in the mounting hole 621 is provided in an annular shape, which makes it more convenient for the massage head 1 to be installed in the mounting hole 621.

[0060] In another embodiment, if Figure 6As shown, the connection structure between the connecting column 62 and the massage head 1 is as follows: a groove 8 and a cantilever 9 suspended above the groove 8 are provided on the outer wall of the connecting rod 2, and a limiting protrusion 10 is provided on the outer wall of the cantilever 9. Correspondingly, a mounting hole 621 is provided on the side wall of the end of the mounting rod 4 facing the massage head 1, and a limiting groove 622 used in conjunction with the limiting protrusion 10 is provided in the mounting hole 621. The process of installing the auxiliary massage part 6 on the massage head 1: the connecting rod 2 is inserted into the mounting hole 621 along with the massage head 1, the limiting protrusion 10 abuts against the inner wall of the mounting hole 621, and the cantilever 9 is deformed toward the groove 8, and then the connecting rod 2 moves to the situation where the limiting protrusion 10 is facing the limiting groove 622, and the limiting protrusion 10 is inserted into the limiting groove 622 under the restoring force of the cantilever 9, thereby completing the axial limitation of the massage head 1 in the mounting hole 621, and the connection between the connecting column 62 and the massage head 1 is completed. Preferably, the limiting end of the limiting protrusion 10 is a spherical structure. When the auxiliary head 61 needs to be disassembled, it is only necessary to increase the external force so that the limiting pin 71 is separated from the limiting groove 622. In this embodiment, in addition to the above-mentioned detachable connection between the connecting rod 2 and the connecting rod 3, preferably, the end of the connecting rod 2 away from the massage head 1 is integrally formed with the connecting rod 2, that is, it is integrally formed with the mounting rod 4 to form a whole. In this way, the massage head assembly and the connecting rod 3 cannot be disassembled, which fundamentally eliminates the possibility of the massage head 1 being disassembled during use, thereby ensuring the service life and transmission efficiency of the massage head 1 and also making the internal connection of the entire massage head assembly more stable.

[0061] In another embodiment, if Figure 7 As shown, the connection structure of the connecting column 62 and the massage head 1 is as follows: the outer wall of the connecting rod 2 close to the massage head 1 is provided with an external thread, and the end of the connecting column 62 facing the massage head 1 is provided with a mounting hole 621, and the mounting hole 621 is provided with an internal thread matching the external thread, and the connecting rod 2 only needs to be screwed into the mounting hole 621 through the matching of the internal and external threads to achieve the connection between the connecting column 62 and the massage head 1. In this embodiment, in addition to adopting the detachable connection between the connecting rod 2 and the connecting rod 3, preferably, the end of the connecting rod 2 away from the massage head 1 is integrally formed with the connecting rod 2.

[0062] In another embodiment, if Figure 8As shown, the connection structure between the connecting column 62 and the massage head 1 is as follows: a first mounting groove 11 is arranged on the outer peripheral side wall of the connecting rod 2, and an elastic limiting member 12 is sleeved on the first mounting groove 11, wherein the elastic limiting member 12 is made of elastic material, has elasticity, can be squeezed and stretched, and the outer diameter of the elastic limiting member 12 is not less than the aperture of the mounting hole 621, and the elastic limiting member 12 is a sleeve structure. When installing, it is sleeved on the outer peripheral side of the first mounting groove 11, and the elastic limiting member 12 can be axially limited. Preferably, the axial length of the elastic limiting member 12 does not exceed and is close to the axial length of the first mounting groove 11, and the length error between the two does not exceed 0.1cm. The process of installing the auxiliary massage part 6 on the massage head 1 is as follows: the connecting rod 2 is inserted into the mounting hole 621 along with the massage head 1, and the elastic stopper 12 is located between the hole wall of the mounting hole 621 and the outer wall of the stopper groove 622, and is squeezed, so that the elastic stopper 12 is connected with the stopper groove 622 by interference, and the outer wall of the connecting rod 2 is connected with the mounting hole 621 by interference, so as to complete the connection between the connecting column 62 and the massage head 1; preferably, in order to make it easier for the elastic fixing part 5 to be inserted into the mounting hole 621, the end of the mounting hole 621 and the end of the elastic fixing part close to the auxiliary head 61 are both provided with chamfers. When the auxiliary head 61 needs to be disassembled, it is only necessary to increase the external force so that the stopper pin 71 is separated from the stopper groove 622. In this embodiment, in addition to adopting the above-mentioned detachable connection between the connecting rod 2 and the connecting rod 3, preferably, the end of the connecting rod 2 away from the massage head 1 is integrally formed with the connecting rod 2.

[0063] Moreover, in this embodiment, the outer peripheral side wall of the connecting rod 2 near the connecting rod 3 is provided with a third convex edge 16. When the massage head 1 is installed in the mounting hole 621, the third convex edge 16 is located outside the mounting hole 621, which serves as a decoration and can also reinforce the structure of the connecting rod 2. Of course, the structure of the mounting hole 621 should be set corresponding to the outer shape structure of the connecting rod 2.

[0064] Specifically, during use, in order to reduce the lateral shaking of the massage head 1 during movement, a shock absorbing structure 15 is sleeved on the outer peripheral side of the mounting rod 4; in this embodiment, Figure 1 As shown, the shock absorbing structure 15 includes a hard ball 151 and a soft buffer part 152, the soft buffer part 152 is sleeved on the connecting column 62, the hard ball 151 is rollingly embedded in the soft buffer part 152 and partially protrudes from the outer wall of the soft buffer part 152, wherein the soft buffer part 152 is an elastic sleeve, which has a good shock absorbing effect, low cost, and is easy to obtain; specifically, the outer periphery of the elastic sleeve is provided with a ball mounting groove for mounting the hard ball 151, the hard ball 151 is rollingly set in the ball mounting groove, and the area of ​​the hard ball 151 exposed in the ball mounting groove is not larger than the area in the ball mounting groove, so as to prevent the hard ball 151 from escaping from the ball mounting groove.

[0065] Specifically, the elastic sleeve is a split structure, including a first section and a second section, the first section is provided with a first half groove, the second section is provided with a second half groove, the first half groove and the second half groove form a ball mounting groove, which is convenient for the installation of the hard ball 151, and the first section and the second section can be fixed by bonding, and can be fixed together under the action of the mounting structure. Of course, in other embodiments, the elastic sleeve is an integrated structure, and the ball mounting groove is a deformable structure. When the hard ball 151 needs to be embedded in the ball mounting groove, force is applied to enlarge the notch of the ball mounting groove. After the hard ball 151 is inserted, the notch of the ball mounting groove automatically shrinks, thereby restricting the hard ball 151 in the ball mounting groove.

[0066] Correspondingly, in order to install the above-mentioned shock absorbing structure 15, refer to Figure 1 and Figure 2 As shown, the outer wall of the mounting rod 4 is formed with a first flange 13 along its circumference, and the outer wall of the end of the connecting rod 2 close to the mounting rod 4 is formed with a second flange 14 along its circumference. After the connecting rod 2 is connected to the mounting rod 4, the first flange 13 and the second flange 14 are spaced apart in the axial direction of the connecting rod 2, so that the mounting rod 4 of the first flange 13 and the second flange 14 is sleeved with a shock absorbing structure 15, and the outer diameter of the shock absorbing structure 15 is larger than the outer diameter of the first flange 13 and the second flange 14, so that when the massage head assembly is installed in the fascia gun, the existence of the shock absorbing structure 15 can offset the lateral shaking of the connecting rod 3 during operation.

[0067] In another embodiment, a ball mounting groove is arranged on the inner peripheral side wall of the elastic sleeve in the shock absorbing structure 15, and the hard ball 151 is rollingly arranged in the ball mounting groove, and the area of ​​the hard ball 151 exposed from the ball mounting groove is not larger than the area located in the ball mounting groove, so as to prevent the hard ball 151 from escaping from the ball mounting groove, and the corresponding first flange 13 of the connecting rod 2 and the second flange 14 of the mounting rod 4 are cancelled, and the outer diameter of the mounting rod 4 is made the same as the outer diameter of the connecting rod 2, and the two are connected to form a rod. During use, the balls on the inner side wall of the shock absorbing structure 15 roll relative to the outer side wall of the rod formed by the mounting rod 4 and the connecting rod 2, thereby playing a shock absorbing role.

[0068] The utility model also discloses a fascia gun, such as Figure 10-13As shown, the fascia gun includes a main body and the above-mentioned massage head assembly, wherein the main body includes an outer shell and a battery 22, a motor 23 and a driving mechanism arranged in the outer shell, wherein the outer shell includes a head cover 19, a tail cover 31, an upper shell 17, a lower shell 18 and a handle shell 21, wherein the upper shell 17 and the lower shell 18 form a main cavity, the handle shell 21 is integrally connected to the lower side wall of the lower shell 18, and the handle shell 21 has a handle cavity. A first through hole is formed at the front end of the main cavity and a second through hole is formed at the rear end. A third through hole is provided on the head cover 19. The head cover 19 is connected to the first through hole, and the third through hole is coaxial with the first through hole. The upper end of the motor 23 is located in the main cavity, and the lower end of the motor 23 is arranged in the handle cavity. The output end of the motor 23 faces upward and is located in the main cavity. The output end of the motor 23 is connected to the drive assembly. The massage head assembly includes a massage head 1 and a connecting rod 2. A connecting rod 3, a shock absorbing structure 15 and a drive assembly are also provided in the main cavity. The massage head 1 is located outside the head cover 19, and the drive assembly is connected to one end of the connecting rod 3. The other end of the connecting rod 3 passes through the first through hole and is connected to the part of the connecting rod 2 located in the third through hole for reciprocating motion.

[0069] Specifically, Figure 14-23 The head cover 19 is an annular structure, the outer diameter of the front end of the head cover 19 is smaller than the outer diameter of the rear end, and the front end of the head cover 19 transitions to the rear end in an arc shape. A head cover connecting ring 181 is formed at the front end of the lower shell body 18, and an annular mounting groove 182 is formed at the front end of the head cover connecting ring 181. At least one head cover connecting hole 183 is provided on the annular mounting groove 182, and at least one third connecting column 191 with an internal thread is provided on the inner side wall of the rear end of the head cover 19. When connected, the rear end of the head cover 19 is inserted into the annular mounting groove 182 and then fixed by bolts; in order to facilitate the positioning and installation of the head cover 19, that is, the alignment of the head cover connecting hole 183 with the threaded hole, the outer diameter of the lower part of the head cover connecting ring 181 is larger than the outer diameter of the upper part, forming two external steps, and the inner diameter of the lower part is larger than the inner diameter of the upper part, thereby forming two internal steps, and the outer side wall of the upper end of the head cover 19 The outer diameter is smaller than the outer diameter of the outer wall of the lower part, and two steps are formed accordingly. Therefore, when the rear end of the head cover 19 is installed in the annular installation groove 182, the two steps formed at the rear end of the head cover 19 correspond to and abut against the two internal steps formed at the upper and lower parts of the head cover connecting ring 181, thereby determining the installation position of the head cover 19; and in order to facilitate the installation of the upper cover, an upper cover limiting groove 184 is provided at the steps formed by the upper and lower outer walls of the head cover connecting ring 181. Correspondingly, the inner diameter of the front end of the upper shell 17 is smaller than the inner diameter of the front end of the lower shell 18, and the outer diameters are equal. The lower side wall of the front end of the upper shell 17 is provided with a corresponding limiting column 171 that cooperates with the upper cover limiting groove 184. By inserting the limiting column 171 into the upper cover limiting groove 184, the upper shell 17 is installed in cooperation with the upper part of the head cover connecting ring 181, thereby realizing the cooperation installation of the upper shell 17 and the lower shell 18.

[0070] An annular groove 192 is provided on the inner wall of the front end of the head cover 19, and an annular boss 193 is provided on the front end of the annular groove 192. A radially and circumferentially distributed reinforcing plate 194 is formed between the annular groove 192 and the inner surface of the front end of the head cover 19, which is used to increase the strength of the annular groove 192 and prevent deformation during operation; when the installation is completed, the shock-absorbing structure 15 is arranged in the annular groove 192, and in order to reduce the wear between the shock-absorbing structure 15 in the massage component assembly and the groove wall of the annular groove 192, a wear-resistant ring 195 is arranged in the annular groove 192, and part of the reinforcing plate 194 is provided with a fourth connecting column 196 with a threaded hole. When in use, a fastener 197 is fixed on the fourth connecting column 196, and one side of the wear-resistant ring 195 is fixed by the fastener 197, while the other side of the wear-resistant ring 195 is limited by the annular boss 193; specifically, the fastener 197 can adopt a structure such as a large nut screw, and the wear-resistant ring 195 is fixed by the edge of the nut.

[0071] It should be noted that during installation, the front side of the wear-resistant ring 195 needs to be firstly abutted against the inner surface of the annular boss 193 at the front end of the head cover 19, and then the wear-resistant ring 195 is fixed in the annular groove 192 by the fastener 197. Subsequently, the rear end of the head cover 19 and the boss of the head cover connecting ring 181 are aligned and initially fixed, and the fastener 197 is driven from the head cover connecting hole 183 inside the fuselage into the threaded hole of the third connecting column 191 to fix the head cover 19. Then, the limit column 171 with a protruding setting at the bottom of the front end of the upper shell 17 is inserted into the upper cover limit groove 184 to achieve the snap connection between the upper shell 17 and the lower shell 18.

[0072] Specifically, the lower shell 18 further includes at least one second mounting groove 185 from the outer surface, and the second mounting groove 185 has a lower connecting hole 1863 that penetrates the lower shell 18. A lower connecting column 186 that extends vertically up and down is provided at a position on the inner surface of the lower shell 18 corresponding to the lower connecting hole 1863, and the lower connecting hole 1863 extends through the lower connecting column 186, and the end side wall of the lower connecting column 186 is provided with a connecting groove 1862 that is coaxial with the lower connecting hole 1863. The end side wall of the connecting groove 1862 extends outward to form a mounting wall 1861, and the inner diameter of the mounting wall 1861 gradually increases from the inside to the outside to form a tapered hole. Correspondingly, the upper shell 17 extends vertically downward from the inner surface of the shell to form an upper connecting column 172 with an upper connecting hole, and the number of the upper connecting columns 172 and the number of the lower connecting columns 186 Correspondingly, the outer diameter of the end of the upper connecting column 172 is slightly smaller than the inner diameter of the connecting groove 1862, so that during installation, the end of the upper connecting column 172 can be embedded in the connecting groove 1862 and abut against the bottom groove wall of the connecting groove 1862. The upper connecting hole is a screw hole. When the upper shell 17 and the lower shell 18 are connected, the bolt is inserted from the second installation groove 185 of the lower shell 18 to the lower connecting hole 1863 to the upper connecting hole, thereby connecting the upper shell 17 and the lower shell 18 together. After the upper shell 17 and the lower shell 18 are connected, the second installation groove 185 can be sealed with a sealing plug, which can play a role in waterproofing, dustproofing and protection; and for better connection, the sum of the lengths of the upper connecting column 172 and the lower connecting column 186 should be appropriate, so that the shells can fit perfectly when connected, and achieve limiting and pre-fixation during installation.

[0073] Furthermore, the upper shell 17 also has a continuous or segmented sealing edge 173 at the connection with the lower shell 18, and the lower shell 18 also has a sealing groove 187 corresponding to the sealing edge 173 at the connection with the upper shell 17. In other embodiments, the upper shell 17 also has a continuous or segmented sealing groove 187 at the connection with the lower shell 18, and the lower shell 18 also has a sealing edge 173 corresponding to the sealing groove 187 at the connection with the upper shell 17. When the two parts of the shell are installed, the sealing edge 173 can be embedded in the sealing groove 187 of the other side shell, so as to achieve sealing, and the two structures can achieve limiting and pre-fixing before screw fixing. In other embodiments, the sealing groove 187 and the sealing edge 173 can also be arranged in steps to further increase the sealing performance.

[0074] The upper shell 17 is convexly formed with a hump 20 just above the motor 23, and the entire hump 20 is located in front of the vertical line where the end of the handle shell 21 is located; in the side view of the present fascia gun, the entire upper half of the fascia gun has three steps, namely the zero-step where the head cover 19 is located, the second-step where the hump 20 is located, and the first-step between the head cover 19 and the hump 20 at the upper surface of the upper shell 17. The shell diameters of the zero-step, the first-step and the second-step are arranged in increasing order, and the hump 20 extends from the connection between the first-step and the second-step to the tail end of the fascia gun, forming a highest peak in the middle. Specifically, the highest peak is a front slope on one side toward the front end of the fascia gun, and a rear slope on the other side. The slope of the front slope is slightly gentler than that of the rear slope, and the entire hump 20 is located in front of the vertical line where the end of the handle shell 21 is located, and the connection between the front slope and the rear slope is arranged in an arc shape. The front slope of the hump 20 is provided with a plurality of transverse heat dissipation holes 2001 for heat dissipation in sequence along the projection line of the transverse axis of the main cavity on the front slope. In order to prevent the transverse heat dissipation holes 2001 from deforming during use, a plurality of semi-circular grooves 2003 are provided on the outer peripheral side of the transverse heat dissipation holes 2001 to increase the service life of the transverse heat dissipation holes 2001; and the rear slope is provided with a plurality of longitudinal heat dissipation holes 2002 along the projection line direction perpendicular to the transverse axis of the main cavity on the rear slope. The longitudinal heat dissipation holes are symmetrically arranged with the transverse axis of the main cavity as the central axis. The transverse heat dissipation holes 2001 and the longitudinal heat dissipation holes 2002 constitute a heat dissipation structure; and in this fascia gun, the distance from the outer surface of the upper shell 17 to the transverse axis of the main cavity is C, D, and C is 4.32 times of D. When the fascia gun is in operation, a large amount of heat will be generated in the main cavity, and the hot air will rise. The shape and height of the hump 20 are conducive to the accumulation of hot air, and the heat dissipation holes opened according to the above method have higher heat dissipation efficiency.

[0075] Specifically, the handle shell 21 has a handle cavity, and the battery 22 is entirely located in the handle cavity and at the lower part of the handle cavity. The inner surface of the handle cavity has a plurality of fixing plates 2111 extending toward the battery 22, wherein the battery 22 in this embodiment is a triangular battery pack with three arc-shaped corners when viewed from the bottom, and is formed by bundling three batteries. There are three fixing plates 2111, and each fixing plate 2111 abuts against the midline position of the three sides of the battery 22. A battery supporting base 2112 is arranged between every two adjacent fixing plates 2111, and the three battery supporting bases 2112 are respectively used to abut against the three rounded corners at the bottom of the battery 22, wherein the bottom of the fixing plate 2111 is not lower than the plane where the supporting base is located, and not higher than the plane where the lower surface of the motor 23 is located.

[0076] Specifically, the lower part of the motor 23 is located in the handle cavity and above the battery 22, and the upper part is located in the main cavity, wherein a motor fixing plate 24 for fixing the upper end of the motor 23 is provided in the main cavity, and a fixing hole is provided on the motor fixing plate 24, and a fixing column is extended upward from the bottom side wall of the lower shell 18, and the fixing hole of the motor fixing plate 24 is sleeved on the fixing column. The upper end of the battery 22 is fixed to the motor fixing plate 24 by bolts, wherein in this embodiment, the distance from the installation plane of the motor 23 (the plane where the motor fixing plate 24 is located) to the lower surface of the main cavity is E, and the distance from the lower surface of the motor 23 to the upper surface of the handle cavity is F. It can be seen that the ratio of the part of the motor 23 that exceeds the handle cavity and the part located in the handle cavity is about 1 / 4, that is, the ratio of E to F is about 1 / 4; preferably, during installation, the center lines of the battery 22 and the motor 23 are arranged in a colinear manner, which is conducive to reducing vibration when the fascia gun is running. Furthermore, since the lower end surface of the motor 23 has an output wire, which has a contact and is easy to fall off, an L-shaped insulating sleeve 25 is provided on the lower end surface of the battery 22 to protect it and play an insulating role. In order to improve the stability of the battery 22, a shock-absorbing member 26 is also provided in the gap between the battery 22 and the motor 23, such as Fig.24 As shown, the structure of the shock-absorbing member 26 is hollow inside, and a through hole is provided at the center of the middle circle. A convex edge is distributed around the through hole in an annular shape to enhance the stability of the through hole. The through hole is used for the protrusion at the bottom of the motor 23 to pass through, and the edge of the bottom of the shock-absorbing member 26 is recessed inward to form an avoidance groove 2611, which is used to make way for the fixing plate 2111 fixing the battery 22 below, so as to avoid the fixing plate 2111 and the bottom of the shock-absorbing member 26 from colliding when in use; and in order to facilitate the accommodation of the insulating sleeve 25, the interior of the shock-absorbing member 26 is also provided with a through accommodating groove 2612 to accommodate the insulating sleeve 25, and the outer convex edge of the shock-absorbing member 26 is formed with a notch, which is a wire groove 2613, which is convenient for the wire to pass through, making the wiring harness more neat. In another embodiment, the shock-absorbing member 26 can be a sponge.

[0077] Specifically, the driving assembly includes an eccentric wheel 27, and the upper end surface of the motor fixing plate 24 is provided with a driving groove 2411 corresponding to the installation of the eccentric wheel 27, the output shaft of the motor 23 passes through the motor fixing plate 24 and is connected with the eccentric wheel 27 in the driving groove 2411, and the end of the connecting rod 3 away from the massage head 1 is provided with a driving hole, and a bearing 28 is provided in the driving hole, and the bearing 28 is connected to the output shaft at the upper end of the eccentric wheel 27, thereby forming a complete transmission system, that is, the motor 23 drives the eccentric wheel 27, the eccentric wheel 27 drives the connecting rod 3 through the bearing 28, and the connecting rod 3 drives the connecting rod 2 to slide in the annular groove 192, and at the same time, the shock absorbing structure 15 plays a corresponding shock absorbing role.

[0078] An annular flange 29 extends from the tail end formed by the upper shell 17 and the lower shell 18, and a tail cover 31 is sleeved on the outside of the annular flange 29, and a tail cover connecting column with a threaded hole is provided on the inner wall of the annular flange 29. Correspondingly, the outer wall of the tail cover 31 is provided with a tail cover connecting hole corresponding to the inner threaded hole of the tail cover connecting column. The tail cover 31 is connected to the annular flange 29 by bolts, and an upper baffle 175 extends inwardly from the inner wall of the tail end of the upper shell 17, and a lower baffle 188 extends inwardly from the inner wall of the tail end of the lower shell 18. The baffle formed by the upper baffle 175 and the lower baffle 188 can produce a partition to divide the two cavities, thereby preventing external debris or wires from entering the cavity where the transmission structure is located, thereby preventing malfunctions. After the upper shell 17 and the lower shell 18 are connected, a baffle is formed between the upper baffle 175 and the lower baffle 188 and has a wire hole. The display control board 30 is installed in the space between the baffle and the tail cover 31. The wire hole facilitates the electrical connection of the display control board 30 with components such as the battery 22 in the main body, and the baffle can limit the display control board 30 to be located in the tail cover 31.

[0079] Furthermore, a display board 32 is provided on the shell, wherein the display board 32 can be a logo board or an electronic display screen for displaying parameters such as temperature and rotation speed, so that the user can understand the usage status; specifically, a display structure mounting groove 174 is provided at the junction of the upper shell 17 and the lower shell 18, and the display structure mounting groove 174 is located directly above the handle shell 21. The upper groove wall of the display structure mounting groove 174 is provided with an axially distributed mounting ridge, so that a groove for mounting the display board is formed between the mounting ridge and the bottom groove wall of the display structure mounting groove 174, and correspondingly, the display board 32 is also provided with a corresponding ridge, and during installation, it is only necessary to align the display board 32 with the bottom groove wall of the display structure mounting groove 174. The corresponding convex edge is snapped into the groove, because the display structure mounting groove 174 is composed of the upper shell 17 and the lower shell 18, that is, the display structure mounting groove 174 is half located on the lower shell 18 and half located on the upper shell 17. First, the display card 32 is installed in the display structure mounting groove 174 of the lower shell 18, and then the upper shell 17 is installed. The convex edge of the display card 32 can be snapped into the groove, and then for the stability of the connection, a sealing ring can be provided at the connection between the display card 32 and the display structure mounting groove 174 to enhance the sealing of the connection, and it can be fixed by one or more methods such as bonding and snapping to better ensure the sealing of the connection.

[0080] The connection between the lower shell 18 of the fascia gun and the handle shell 21 is set as an arc structure 33, which can reduce the residual stains on the external shell, increase the aesthetics, and improve the grip. A polygonal area with a polygonal protrusion structure is also set below the arc structure 33. The end of the protrusion is chamfered or rounded to increase the safety factor and improve the hand-held grip. Preferably, the arc structure 33 can be made of sweat-absorbing and shock-absorbing materials. The space inside the arc structure 33 can be used to accommodate part of the motor 23.

[0081] Specifically, Figure 25-26 As shown, a bottom cover structure 34 is provided at the bottom of the handle shell 21, and the bottom cover structure 34 includes a charging cover 3411 and a charging plate 3412. The battery 22 is entirely located in the handle shell 21, and the charging plate 3412 and the charging cover 3411 are located at the bottom of the handle shell 21. A charging plate mounting groove is provided at the bottom of the handle shell 21 of the lower shell 18, and a charging plate mounting column 2113 is provided in the charging plate mounting groove. The charging plate mounting column 2113 is located behind the battery supporting base 2112, and a third mounting hole is provided at the top of the charging plate mounting column 2113. At the same time, a step is also provided on the outer surface of the top of the third mounting hole, and the step is used to abut the charging plate 3412. The charging plate 3412 is electrically connected to the battery 22, the display control board 30, and the motor 23. The charging plate 341 2 also has a charging port and a main switch, and protrudes outward. In addition, the charging plate 3412 is also provided with a mounting through hole corresponding to the charging plate mounting column 2113, which enables the charging plate 3412 to extend into the charging plate mounting column 2113 and abut against the step of the charging plate mounting column 2113. The outer diameter and inner diameter of the charging cover 3411 are consistent with the outer diameter and inner diameter of the handle shell 21, and a through hole corresponding to the charging port and the main switch is opened to accommodate the components, and the charging cover 3411 should also have a mounting through hole corresponding to the charging plate mounting column 2113; during installation, the fastener 197 is respectively passed through the mounting through hole of the charging cover 3411, the mounting through hole of the charging plate 3412 and the third mounting hole to complete the fixing of the structure. Preferably, a step structure can be provided at the end connection where the handle shell 21 and / or the charging cover 3411 are close to each other to enhance the sealing and waterproof properties.

[0082] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A massage head assembly with a non-detachable massage head during use, applied to a fascia gun, wherein a connecting rod connected to a driving assembly is provided in the fascia gun, characterized in that: It comprises a massage head and a connecting rod, wherein one end of the massage head is integrally formed with the connecting rod; One end of the connecting rod away from the massage head is connected to the connecting rod, and the connection between the two is located inside the fascia gun.

2. The massage head assembly according to claim 1, characterized in that: It also includes a fixing piece, wherein a first connecting hole is provided at one end of the connecting rod close to the connecting rod, the end of the connecting rod close to the connecting rod is recorded as a mounting rod, and a second connecting hole is provided at the side wall of the mounting rod close to the connecting rod, and the fixing piece passes through the second connecting hole and the first connecting hole in sequence, and is fixed to the mounting rod and the connecting rod respectively, so as to realize the connection between the connecting rod and the connecting rod.

3. The massage head assembly according to claim 1, characterized in that: One end of the connecting rod away from the massage head is integrally formed with the connecting rod.

4. The massage head assembly according to any one of claims 1 to 3, characterized in that: It also includes an auxiliary massage piece, which includes an auxiliary head and a connecting column connected to the auxiliary head. The connecting column and the massage head are detachably connected to transmit the force of the massage head to the auxiliary massage piece to perform massage.

5. The massage head assembly according to claim 4, characterized in that: It also includes a connecting assembly, the connecting assembly includes a limit pin and an elastic member, the limit pin is connected to the elastic member, the connecting rod is provided with a receiving space, the side wall of the connecting rod is provided with a limit hole communicating with the receiving space, the elastic member is arranged in the receiving space, and the limit pin is arranged in the limit hole; A mounting hole is provided at one end of the connecting column facing the massage head, and a limiting groove is provided in the mounting hole. When the auxiliary massage component is installed on the massage head, the massage head is inserted into the mounting hole, and the limiting pin in the limiting hole is squeezed by the inner wall of the mounting hole and shrinks in the limiting hole, and squeezes the elastic component. Then, when the limiting hole is opposite to the limiting groove, the limiting pin is inserted into the limiting groove under the action of the restoring force of the elastic component.

6. The massage head assembly according to claim 5, characterized in that: The elastic member is a V-shaped elastic member, two limit pins are provided, and both are provided with a small hole, and the two ends of the V-shaped elastic member are respectively inserted into the small holes of the limit pin.

7. The massage head assembly according to claim 4, characterized in that: The outer side wall of the connecting rod is provided with a groove, the connecting rod is also provided with a cantilever suspended from the groove, the outer side wall of the cantilever is provided with a limiting protrusion, the end of the connecting column facing the massage head is provided with a mounting hole, and the mounting hole is provided with a limiting groove; During the process of installing the auxiliary massage part on the massage head, the massage head is inserted into the mounting hole, the limiting protrusion abuts against the inner wall of the mounting hole, and the cantilever is deformed toward the groove, and then, when the limiting protrusion is facing the limiting groove, the limiting protrusion is inserted into the limiting groove under the action of the restoring force of the cantilever.

8. The massage head assembly according to claim 4, characterized in that: The outer wall of the connecting rod close to the massage head is provided with an external thread, and the end of the connecting column facing the massage head is provided with a mounting hole, and the mounting hole is provided with an internal thread matched with the external thread.

9. The massage head assembly according to claim 4, characterized in that: It also includes an elastic limiting member, the connecting rod is provided with a first mounting groove, and the elastic limiting member is sleeved in the first mounting groove; When connected, the massage head and the connecting rod are inserted into the mounting hole of the auxiliary massage member, and the elastic limiting member is interference-fitted with the mounting hole.

10. A fascia gun, characterized in that: The massage head assembly comprises a main body and any one of claims 1 to 9, wherein the main body comprises a main housing, a battery, a motor and a drive assembly, the battery and the motor are arranged in the main housing and are electrically connected, and the output shaft of the motor is connected to an end of the connecting rod away from the massage head through the drive assembly; The main shell body comprises a head cover, an upper shell body, a lower shell body, a tail cover and a handle shell body, the connection between the connecting rod and the connecting rod is located in the head cover, the lower shell body is arranged above the handle shell, the upper shell body and the lower shell body are connected to form a main cavity, the front end and the rear end of the main cavity are provided with through holes, the head cover is connected to the through hole at the front end of the main cavity, and the tail cover is arranged at the through hole at the rear end of the main cavity; the upper shell body is convex to form a hump directly above the motor, and the hump comprises a front slope and a rear slope, the front slope is provided with a plurality of transverse heat dissipation holes for heat dissipation in sequence along the projection line of the transverse axis of the main cavity on the front slope, and the rear slope is provided with a plurality of longitudinal heat dissipation holes for heat dissipation along the direction perpendicular to the projection line of the transverse axis of the main cavity on the rear slope.

Images