CN219090152U

CN219090152U - Fascia gun

Info

Publication number: CN219090152U
Application number: CN202222449692.0U
Authority: CN
Inventors: 臧传美
Original assignee: Zhejiang Aerlang Technology Co Ltd
Current assignee: Zhejiang Aerlang Technology Co Ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-05-30
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to a fascia gun, which comprises a massage head, a shell, a piston, a damping structure and a piston, wherein the piston is positioned in the shell and is detachably connected with the massage head; the shock-absorbing structure comprises a hard ball and a soft buffer part, the soft buffer part is sleeved on the piston, and the hard ball is arranged on the outer side of the soft buffer part and is in rolling butt joint with the inner wall of the through hole. Its advantage lies in, and shock-absorbing structure is located between the clearance of piston and through-hole, and this shock-absorbing structure provides the support for the piston to reduce the rocking of piston when the piston motion, wherein, stereoplasm ball rolls the butt with the through-hole inner wall, thereby reduced the frictional force of through-hole to piston and soft buffer part, soft buffer part cover is established on the piston, and the effort on the casing can be conducted to the buffering piston well to the elasticity of soft buffer part, makes shock attenuation effect better, and this shock-absorbing structure's installation degree of difficulty is low, and is efficient.

Description

Fascia gun

Technical Field

The utility model relates to the technical field of massage equipment, in particular to a fascia gun.

Background

The fascia gun can help professional athletes or amateur body-building people to massage large muscle groups, relax fascia, reduce pain and is greatly favored by consumers. The fascia gun generally comprises a gun body and a vibratory massage head, and the vibratory massage function of the fascia gun is realized through repeated expansion and contraction. The massage head is driven by an eccentric driving mechanism in the fascia gun to reciprocate relative to the gun body. Specifically, the massage head is detachably arranged on the piston of the cavity, the front end of the gun body is provided with a through hole, the piston penetrates through the through hole and reciprocates in the through hole, and in order to reduce vibration of the piston, a damping structure is arranged between the piston and the through hole and is generally a cushion pad, but the cushion pad has larger friction to the through hole.

Disclosure of Invention

The technical problem to be solved by the utility model is to overcome the defects in the prior art, thereby providing the fascia gun.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the fascia gun comprises a massage head, a shell, a piston and a damping structure, wherein the piston is positioned in the shell and is detachably connected with the massage head, a through hole is formed in the front end of the shell, the piston penetrates through the through hole, and the damping structure is positioned between the piston and the inner wall of the through hole;

the damping structure comprises a hard ball and a soft buffer part, the soft buffer part is sleeved on the piston, and the hard ball is arranged on the outer side of the soft buffer part and is in rolling butt with the inner wall of the through hole.

Preferably, the hard balls are circumferentially and uniformly distributed on the periphery of the soft buffer part and are in rolling contact with the inner wall of the through hole.

Preferably, the soft buffer part is an elastic sleeve, an installation groove for installing the hard ball is formed in the periphery of the elastic sleeve, the hard ball is arranged in the installation groove in a rolling mode, and the area of the hard ball exposed out of the installation groove is not larger than the area of the hard ball in the installation groove.

Preferably, the elastic sleeve is of a split structure and comprises a first part and a second part, wherein a first half groove is formed in the first part, a second half groove is formed in the second part, and the first half groove and the second half groove form the mounting groove; or alternatively

The elastic sleeve is of an integrated structure, and the mounting groove is of a deformable structure.

Preferably, a connecting rod is further arranged in the shell, and the connecting rod is fixedly connected with the piston.

Preferably, the front end of the connecting rod is provided with a groove, and the rear end of the piston is embedded and fixed in the groove.

Preferably, the periphery of the piston is provided with annular steps, the end parts of the connecting rods are arranged at intervals with the annular steps, a positioning groove is formed in the middle of the connecting rods, and the soft buffer parts are positioned in the positioning groove.

Preferably, the connecting rod and the piston are of an integrated structure, an annular step and a positioning piece are arranged on the periphery of the piston, the soft buffer part is located between the positioning piece and the annular step, and the soft buffer part is abutted to the front side face of the annular step.

Preferably, the hard ball is located at an end of the piston near the outer end of the through hole.

Preferably, the front end of the housing has an annular groove, a wear-resistant ring is mounted in the annular groove, the through hole is partially formed in the wear-resistant ring, the outer side of the hard ball is abutted against the inner wall of the wear-resistant ring, and the inner side of the soft buffer part is abutted against the outer periphery of the piston.

Compared with the prior art, the utility model has the beneficial effects that:

according to the fascia gun provided in the technical scheme, the damping structure is located between the piston and the gap of the through hole, the damping structure provides support for the piston, so that shaking of the piston is reduced when the piston moves, the damping structure comprises the hard balls and the soft buffering portion, the hard balls are in rolling butt with the inner wall of the through hole, friction force of the through hole to the piston and the soft buffering portion is reduced, the soft buffering portion is sleeved on the piston, elastic force of the soft buffering portion can well buffer acting force of the piston conducted to the shell, the damping effect is better, and the damping structure is low in installation difficulty and high in efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of an exploded structure of a fascia gun according to an embodiment of the utility model.

Fig. 2 is a schematic diagram of a piston and a connecting rod according to an embodiment of the utility model.

Fig. 3 is an exploded view of a shock absorbing structure according to an embodiment of the present utility model.

FIG. 4 is a schematic view of a shock absorbing structure and wear sleeve of an embodiment of the present utility model mounted in a housing.

Reference numerals illustrate:

10. a housing; 11. a head cover; 111. a wear ring; 112. a through hole; 113. an annular groove; 12. a main body; 20. a piston; 21. an annular step; 22. a positioning groove; 30. a shock absorbing structure; 31. an elastic sleeve; 311. a mounting groove; 312. a first subsection; 313. a second subsection; 314. a first half-groove; 315. a second half-groove; 32. hard balls; 40. a connecting rod; 41. a groove.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 4, the embodiment of the present utility model provides a fascia gun, which comprises a massage head and a housing 10, wherein the housing 10 is used for accommodating a battery, a motor, a reciprocating structure, etc., the housing is provided with a piston 20, the massage head is detachably connected with the piston 20, the massage head is of various types and can be used by combining the existing products with the piston 20, the piston 20 is positioned in the housing 10 and is structurally connected with a reciprocating connecting rod 40, specifically, the front end of the housing 10 is provided with a through hole 112, the piston 20 passes through the through hole 112 and is installed in the housing 10, and the massage head is inserted into the piston 20 and is detachably connected with the piston 20. As shown in fig. 1, the housing 10 includes a main body 12 and a head cover 11, the head cover 11 is located at the front end of the main body 12, detachably connected to the main body 12, the through hole 112 and the piston 20 are both located in the head cover 11, and a battery, a motor, a reciprocating structure, and the like are located in the main body 12.

The piston 20 moves along the axis of the through hole 112 under the action of the reciprocating structure, and because the reciprocating structure generally adopts an eccentric design, the piston 20 can generate radial offset when being driven to reciprocate, if the gap between the piston 20 and the through hole 112 is larger, noise can be generated, and the piston 20 and the massage end shake left and right, therefore, the fascia gun of the embodiment further comprises a damping structure 30 positioned between the piston 20 and the inner wall of the through hole 112, specifically, the damping structure 30 comprises hard balls and a soft buffer part, the soft buffer part is used for reducing the gap between the piston 20 and the through hole 112, the hard balls are used for counteracting the force on the inner wall of the through hole 112 when the piston 20 radially deflects, therefore, the soft buffer part of the embodiment is sleeved on the piston 20, the soft buffer part and the piston 20 have larger contact area, the acting force of the piston on the shell can be well buffered, the damping effect is better, the hard balls are arranged on the outer side of the soft buffer part and roll and abut against the inner wall of the through hole 112, the soft buffer part and the piston 20 are supported, the left and right shaking of the piston 20 are limited, and meanwhile, the friction force on the soft buffer part and the inner wall of the piston 20 are reduced. The embodiment is different from the technical scheme that the elastic sleeve 31 or the hard ball 32 is singly arranged to be abutted against the piston 20 in the prior art, so that the damping effect is good, the left and right shaking of the piston 20 is limited, and the friction force is small; in addition, the installation of the shock-absorbing structure 30 is facilitated, when the shock-absorbing structure 30 of this embodiment is installed, the hard balls can be arranged on the outer side of the soft buffer portion, then the soft buffer portion is sleeved on the periphery of the piston 20, and then the piston 20 and the shock-absorbing structure 30 are placed in the through hole 112, and since the piston 20 and the shock-absorbing structure 30 are positioned at this time, the outer diameter of the hard balls is slightly larger than the inner diameter of the through hole 112, and the piston 20 and the shock-absorbing structure 30 can be stably installed in the through hole 112 through the deformation of the soft buffer portion; rather than requiring the soft buffer to be installed in the through hole 112 as in the prior art, the installation process is limited by the influence of the line of sight and the operation space, and the installation difficulty is high.

Preferably, as shown in fig. 3, the hard balls 32 are circumferentially and uniformly distributed on the periphery of the soft buffer portion and are in rolling contact with the inner wall of the through hole 112 to form rolling friction, so as to provide support for the piston, thereby reducing the left-right shaking of the piston 20, reducing the friction force with the inner wall of the through hole 112, and greatly reducing the running noise of the product.

The soft buffer part is an elastic sleeve 31, so that the shock absorption effect is good, the cost is low, and the shock absorption device is easy to obtain; the periphery of the elastic sleeve 31 is provided with a mounting groove 311 for mounting the hard ball 32, the hard ball 32 is arranged in the mounting groove 311 in a rolling way, and the area of the hard ball 32 exposed out of the mounting groove 311 is not larger than the area in the mounting groove 311, so that the hard ball 32 is prevented from falling out of the mounting groove 311.

In an embodiment, as shown in fig. 3, the elastic sleeve 31 is in a split structure, and includes a first part 312 and a second part 313, a first half groove 314 is provided on the first part 312, a second half groove 315 is provided on the second part 313, the first half groove 314 and the second half groove 315 form a mounting groove 311, so that the hard ball 32 is convenient to mount, and the first part 312 and the second part 313 can be fixed by adopting an adhesive mode and can be fixed together under the action of the mounting structure.

Of course, in other embodiments, the elastic sleeve 31 is of an integral structure, the mounting groove 311 is of a deformable structure, and when the hard ball 32 is required to be inserted into the mounting groove 311, the notch of the mounting groove 311 is enlarged by applying force, and after the hard ball 32 is inserted, the notch of the mounting groove 311 is automatically reduced, so that the hard ball 32 is limited in the mounting groove 311.

In the embodiment shown in fig. 1, the housing 10 is further provided with a connecting rod 40, the connecting rod 40 is fixedly connected with the piston 20, the connecting rod 40 and the piston 20 are in a split structure, the front end of the connecting rod 40 is provided with a groove 41, the rear end of the piston 20 is embedded and fixed in the groove 41, and the rear end of the piston 20 is fixed with the groove 41 by bolts.

The periphery of the piston 20 is provided with an annular step 21, the connecting rod 40 is sleeved at one end of the piston 20 far away from the outer end of the through hole 112, the end part of the connecting rod 40 is arranged at intervals with the annular step 21, a positioning groove 22 is formed in the middle, and the shock absorption structure 30 is positioned in the positioning groove 22. Preferably, the hard ball 32 is located at an end of the piston 20 near the outer end of the through hole 112, and it should be noted that the outer end of the through hole 112 refers to an end far away from the main body 12, the hard ball 32 is relatively near the outer end of the through hole 112, and is bounded by the axial center of the piston 20, the end near the main body 12 is an end near the inner end of the through hole 112, the end far away from the main body 12 is an end near the outer end of the through hole 112, the contact area between the groove 41 of the connecting rod 40 and the piston 20 is larger due to the relatively near outer end of the through hole 112, which is favorable for stabilizing the piston 20, and the distance between the hard ball 32 and the connecting rod 40 is farther, which is favorable for limiting the left and right shaking of the piston 20.

Of course, in the present embodiment, the positioning groove 22 may be directly formed on the outer periphery of the piston 20, and the shock absorbing structure 30 may be fixed in the positioning groove 22, or the shock absorbing structure 30 may be fixed on the outer periphery of the piston 20 by means of adhesive fixing, or the outer periphery of the piston 20 may not be provided with the annular step 21, but the positioning groove 22 may be formed by using the inner step of the head cover 11 and the end portion of the connecting rod 40, for mounting the shock absorbing structure 30.

In another embodiment, the connecting rod 40 and the piston 20 are in an integral structure, the outer periphery of the piston 20 is provided with an annular step 21, the shock absorbing structure 30 is abutted against the front side surface of the annular step 21, it is noted that the definition of the front side surface and the rear side surface of the annular step is the same as the definition of the piston, namely, the side far away from the main body is the front side surface, the side close to the main body is the rear side surface, the piston 20 is further provided with a positioning piece, the positioning piece is close to the outer end of the through hole 112 relative to the annular step 21, the soft buffer part is located between the positioning piece and the annular step 21, and the positioning piece can be a clamp.

If the through hole 112 is directly arranged on the casing 10, the hard ball is in direct contact with the inner wall of the through hole 112, so that abrasion is easily generated on the casing 10, preferably, the front end of the casing 10 is provided with the abrasion-resistant ring 111, the through hole 112 is arranged in the abrasion-resistant ring 111, the outer side of the shock-absorbing structure 30 is abutted with the inner wall of the abrasion-resistant ring 111, and the inner side is abutted with the outer periphery of the piston 20, so that abrasion on the casing 10 is reduced; specifically, as shown in fig. 4, the front end of the housing 10, that is, the inside of the head cover 11 is provided with an annular groove 113, the wear-resisting ring 111 is installed in the annular groove 113, the head cover 11 is connected with the main body 12 by adopting threads, the piston 20 is connected with the connecting rod 40, the shock-absorbing structure 30 is sleeved on the piston 20 and positioned, the wear-resisting ring 111 is installed in the annular groove 113 of the head cover 11, then the head cover 11 is connected with the main body 12 by threads, during the process of rotating the head cover 11, the end parts of the wear-resisting ring 111 and the main body 12 are gradually closed, the shock-absorbing structure 30 gradually penetrates into the through hole 112 of the wear-resisting ring 111 and is abutted with the inner wall of the through hole 112, when the head cover 11 and the main body 12 are rotated in place, the wear-resisting ring 111 is fixed by the side wall of the annular groove 113 and the end part of the main body 12, and the shock-absorbing structure 30 and the through hole 112 are assembled in place.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. The fascia gun comprises a massage head and a shell, and is characterized by further comprising a piston positioned in the shell, wherein the piston is detachably connected with the massage head, the front end of the shell is provided with a through hole, the piston penetrates through the through hole, and the fascia gun further comprises a damping structure positioned between the piston and the inner wall of the through hole;

2. The fascia gun of claim 1, wherein the hard balls are circumferentially distributed around the outer periphery of the soft cushioning portion.

3. The fascia gun according to claim 2, wherein the soft buffer portion is an elastic sleeve, a mounting groove for mounting the hard ball is formed in the periphery of the elastic sleeve, the hard ball is arranged in the mounting groove in a rolling mode, and the area of the hard ball exposed out of the mounting groove is not larger than the area of the hard ball in the mounting groove.

4. The fascia gun according to claim 3, wherein the elastic sleeve is of a split structure and comprises a first part and a second part, wherein a first half groove is formed in the first part, a second half groove is formed in the second part, and the first half groove and the second half groove form the mounting groove; or alternatively

5. The fascia gun of claim 1, wherein the housing further has a connecting rod therein, the connecting rod being fixedly connected to the piston.

6. The fascia gun according to claim 5, wherein a front end of the connecting rod is provided with a groove, and a rear end of the piston is embedded and fixed in the groove.

7. The fascia gun according to claim 6, wherein an annular step is arranged on the periphery of the piston, the end portion of the connecting rod is arranged at intervals with the annular step, a positioning groove is formed in the middle of the connecting rod, and the soft buffer portion is located in the positioning groove.

8. The fascia gun according to claim 5, wherein the connecting rod and the piston are of an integrated structure, an annular step and a positioning piece are arranged on the periphery of the piston, the soft buffer part is located between the positioning piece and the annular step, and the soft buffer part is abutted against the front side face of the annular step.

9. The fascia gun according to claim 6 or 8, wherein the hard ball is located at an end of the piston near the outer end of the through hole.

10. The fascia gun according to claim 1, wherein the front end of the housing has an annular groove, a wear ring is installed in the annular groove, the through hole portion is provided in the wear ring, the outer side of the hard ball is abutted against the inner wall of the wear ring, and the inner side of the soft buffer portion is abutted against the outer periphery of the piston.