Fascia gun reciprocating motion mechanism and fascia gun

Abstract

The reciprocating motion mechanism of the fascia gun is equivalent to a machine core and is arranged in a shell of the fascia gun, one end of a piston is used for being connected with a massage head, the end, away from the massage head, of the piston is connected with a movable sliding block, and the end, away from the piston, of the movable sliding block is rotationally connected with a transmission shaft. The axial line of the transmission shaft coincides with the axial line of the piston, the transmission shaft rotates in the axial line direction so that the movable sliding block can drive the piston to move back and forth in the axial line direction, a linear transmission structure is adopted, a shell of the fascia gun does not need right-angle turning treatment, the shape is more concise and graceful, and occupied space is small. An eccentric wheel and a bearing connecting rod do not need to be additionally arranged for driving, the overall size of the shell is relatively reduced, noise is improved, the use experience of a user is improved, meanwhile, abrasion caused by large rotational inertia of the eccentric wheel is avoided, and the service life of a product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fascia guns, in particular to a fascia gun reciprocating motion mechanism and a fascia gun. Background Art

[0002] Currently, most fascia guns on the market use an eccentric wheel to drive a bearing connecting rod to drive a piston. The eccentric wheel is connected to a motor. The rotation of the motor drives the eccentric wheel to rotate, and the bearing connecting rod drives the piston and the massage head on the piston to perform high-frequency reciprocating motion, which is used to massage human muscle tissue and eliminate muscle tension and other discomforts. However, this transmission structure has limitations, that is, the motor and the piston and the bearing connecting rod are set at a 90° angle. Therefore, most fascia guns need to increase the internal space of the shell to adapt to the right-angle transmission structure between the various components. When the fascia gun is working, the eccentric wheel and the bearing connecting rod have high-frequency vibration noise, and the large rotational inertia makes them prone to wear, which affects the user experience and product life. Utility Model Content

[0003] The main purpose of the utility model is to provide a reciprocating motion mechanism of a fascia gun, aiming to improve the problems of large volume, noise and wear of a conventional transmission structure of a fascia gun.

[0004] In order to achieve the above-mentioned purpose, the reciprocating motion mechanism of the fascia gun proposed by the utility model comprises:

[0005] A piston, the piston being used to connect to the massage head;

[0006] A movable slider, the movable slider is fixedly connected to an end of the piston away from the massage head;

[0007] A transmission shaft is rotatably connected to the movable slider to drive the movable slider and the piston to perform reciprocating motion along the axial direction of the piston.

[0008] In one embodiment, the reciprocating motion mechanism of the fascia gun further includes a movable ball, which is mounted on the movable slider, and a slideway connected end to end is provided on the outer periphery of the transmission shaft, and the movable ball is at least partially slidably disposed in the slideway.

[0009] In one embodiment, the movable slider is provided with an axial hole along the axial direction of the piston, the movable ball is installed on the inner wall of the axial hole and at least partially protrudes in the axial hole, the transmission shaft has one end of the slideway rotatably set in the axial hole, and the protruding part of the movable ball is slidably set in the slideway.

[0010] In one embodiment, a mounting position connected to the shaft hole is provided on the movable slider, a mounting member is fixed in the mounting position, a recess is provided on a side of the mounting member close to the transmission shaft, the slideway and the cross-section of the recess form concentric circles, and the movable bead is installed in the concentric circle.

[0011] In one embodiment, the reciprocating motion mechanism of the fascia gun also includes a motor and a bracket, the motor is fixed on the bracket, the output end of the motor is connected to the transmission shaft, and the end of the piston away from the movable slider is movably connected to the bracket and moves back and forth along its own axial direction.

[0012] In one embodiment, a sliding shaft is installed on the bracket, and the sliding shaft is arranged parallel to the movement direction of the piston. A through hole is opened on the movable slider, and the sliding shaft is movably inserted into the through hole, so that the movable slider reciprocates on the sliding shaft.

[0013] In one embodiment, a sleeve and a ball are disposed in the through hole, a mounting groove is disposed on the inner wall of the sleeve, the mounting groove is used to mount the ball, and the ball is rotatably disposed in the mounting groove and contacts the outer peripheral surface of the sliding shaft.

[0014] In one embodiment, the number of the mounting grooves and the balls is set to be multiple, and the multiple mounting grooves and the balls are evenly arranged around the circumference of the sliding shaft.

[0015] In one embodiment, the reciprocating motion mechanism of the fascia gun further includes a piston sleeve and a sleeve, wherein the piston sleeve is fixedly mounted on an end of the bracket away from the motor, the sleeve is mounted in the piston sleeve, and the piston is movably disposed through the sleeve.

[0016] The utility model also provides a fascia gun, comprising the fascia gun reciprocating motion mechanism in any of the aforementioned embodiments.

[0017] The technical solution of the utility model improves the defects of the conventional right-angle transmission structure of the fascia gun by adopting a linear transmission connection structure. Specifically, the reciprocating motion mechanism of the fascia gun includes a piston, a moving slider and a transmission shaft. The reciprocating motion mechanism of the fascia gun is equivalent to a movement and is arranged inside the shell of the fascia gun. One end of the piston has a slot for connecting the massage head. The end of the piston away from the massage head is fixedly connected to the moving slider. The end of the moving slider away from the piston is rotatably connected to the transmission shaft. The axis of the transmission shaft coincides with the axis of the piston. The transmission shaft rotates along the axis direction so that the moving slider moves back and forth along the axis direction of the piston. The piston follows the moving slider to perform high-frequency reciprocating motion and transmits power to the massage head to massage human tissue.

[0018] It is understandable that by adopting a linear transmission structure, the shell of the fascia gun does not need to make right-angle turns, the shape is simpler and more beautiful, and the space is small. Compared with the conventional transmission structure, there is no need to add an eccentric wheel and a bearing connecting rod. The overall volume of the shell is relatively reduced, and there will be no noise caused by high-frequency vibration of the eccentric wheel and the bearing connecting rod, thus avoiding the wear caused by rotational inertia, improving the user experience, and extending the product life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the reciprocating motion mechanism of the fascia gun of the utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of partial structural disassembly of the reciprocating motion mechanism of the fascia gun;

[0022] Figure 3 for Figure 1 Detailed structural disassembly diagram of the reciprocating motion mechanism of the fascia gun;

[0023] Figure 4 It is a structural schematic diagram of a moving slider in one embodiment of the reciprocating motion mechanism of the fascia gun of the utility model;

[0024] Figure 5 It is a schematic diagram of the assembly structure of the movable ball and the transmission shaft in one embodiment of the reciprocating motion mechanism of the fascia gun of the utility model;

[0025] Figure 6 for Figure 1 Sectional view in the AA direction;

[0026] Figure 7 for Figure 1 Cross-sectional view along the BB direction.

[0027] Description of Figure Numbers:

[0028] 100-Reciprocating motion mechanism of fascia gun;

[0029] 110-piston; 111-connecting shaft;

[0030] 120-movable slider; 121-axis hole; 122-installation position; 123-installation piece; 1231-recessed portion; 124-first gland; 125-through hole; 126-kit; 1261-installation groove; 127-ball; 128-second gland;

[0031] 130-activity beads;

[0032] 140-transmission shaft; 141-slideway;

[0033] 150-motor; 151-wiring;

[0034] 160- bracket; 161- sliding shaft; 162- buffer;

[0035] 170-piston sleeve; 171-third gland;

[0036] 180-sleeve;

[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0039] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0041] The utility model provides a fascia gun reciprocating motion mechanism 100.

[0042] Reference Figures 1 to 3 The reciprocating motion mechanism 100 of the fascia gun includes a piston 110, a moving slider 120 and a transmission shaft 140. The reciprocating motion mechanism 100 of the fascia gun is equivalent to a movement and is arranged inside the housing of the fascia gun. One end of the piston 110 has a slot for connecting a massage head. The end of the piston 110 away from the massage head is provided with a socket. The moving slider 120 is also provided with a socket. The piston 110 is connected to the moving slider 120 through the socket provided by the connecting shaft 111. The end of the moving slider 120 away from the piston 110 is rotatably connected to the transmission shaft 140. The axis of the transmission shaft 140 coincides with the axis of the piston 110. The transmission shaft 140 rotates along the axial direction so that the moving slider 120 moves back and forth along the axial direction of the piston 110. The piston 110 follows the moving slider 120 to perform high-frequency reciprocating motion and transmits power to the massage head to massage human tissue.

[0043] It is understandable that by adopting a linear transmission structure, the shell of the fascia gun does not need to make right-angle turns, the shape is simpler and more beautiful, and the space is small. Compared with the conventional transmission structure, there is no need to add an eccentric wheel and a bearing connecting rod. The overall volume of the shell is relatively reduced, and there will be no noise caused by the high-frequency vibration of the eccentric wheel and the bearing connecting rod, which improves the user experience, while avoiding the wear caused by the rotational inertia of the eccentric wheel and extending the product life.

[0044] In one embodiment, the fascia gun reciprocating motion mechanism 100 also includes a movable ball 130, which is installed on the movable slider 120. The outer periphery of the transmission shaft 140 is provided with a slideway 141 connected end to end, and the movable ball 130 is at least partially slidably arranged in the slideway 141.

[0045] like Figures 3 to 5 As shown, in one embodiment of the utility model, a movable bead 130 is further provided on the movable slider 120, and a groove 141 connected end to end and in a wave shape is formed on the outer peripheral surface of the transmission shaft 140. The cross-sectional shape of the groove 141 matches the movable bead 130. The movable bead 130 is installed on the movable slider 120, and at least part of the structure is located in the groove 141.

[0046] It can be understood that when the transmission shaft 140 rotates along the axial direction, the movable bead 130 slides along the slideway 141. When the transmission shaft 140 rotates one circle, the movable bead 130 drives the movable slider 120 to reciprocate twice, that is, drives the piston 110 and the massage head to complete a cycle of telescopic action, and the movable bead 130 can be fixed on the movable slider 120, and can also rotate relative to the movable slider 120, that is, when the transmission shaft 140 rotates, the movable bead 130 rotates around its own center, reducing friction and reducing wear between the transmission shaft 140, the movable bead 130 and the movable slider 120.

[0047] In one embodiment, the movable slider 120 is provided with an axial hole 121 along the axial direction of the piston 110, the movable ball 130 is installed on the inner wall of the axial hole 121 and at least partially protrudes in the axial hole 121, the transmission shaft 140 has one end of a slideway 141 rotatably set in the axial hole 121, and the protruding part of the movable ball 130 is slidably set in the slideway 141.

[0048] like Figure 4 and Figure 6 As shown, in one embodiment of the utility model, an axial hole 121 is opened on the side of the movable slider 120 away from the piston 110 along the axial direction of the piston 110 for inserting the transmission shaft 140, and the movable ball 130 is installed on the inner wall of the axial hole 121 and partially protrudes in the axial hole 121. The protruding part of the movable ball 130 is installed in cooperation with the slideway 141. The transmission shaft 140 rotates in the axial hole 121, and the movable slider 120 reciprocates under the drive of the movable ball 130. It can be understood that opening the axial hole 121 and arranging the movable ball 130 in the axial hole 121 can improve the space utilization rate, shorten the distance between the motor 150 and the piston 110, which is conducive to reducing the volume of the housing and reducing the production cost.

[0049] In one embodiment, a mounting position 122 connected to the shaft hole 121 is provided on the movable slider 120, a mounting member 123 is fixed in the mounting position 122, a recessed portion 1231 is provided on the side of the mounting member 123 close to the transmission shaft 140, the cross-sections of the slideway 141 and the recessed portion 1231 form concentric circles, and the movable bead 130 is installed in the concentric circles.

[0050] like Figure 3 and Figure 4 As shown, in one embodiment of the utility model, a mounting position 122 connected to the shaft hole 121 is opened above the movable slider 120, and the mounting member 123 is fixed in the mounting position 122 and a portion thereof extends into the shaft hole 121. The mounting member 123 and the side opposite to the transmission shaft 140 are recessed in a direction away from the transmission shaft 140 to form a spherical recessed portion 1231, and the slideway 141 is in an arc shape, such as Figure 6 As shown, the recessed portion 1231 and the cross section of the slideway 141 form concentric circles, and the movable bead 130 is placed in the concentric circle structure. In addition, during the rotation of the transmission shaft 140, the recessed portion 1231 is used to prevent the movable bead 130 from leaving the concentric circle. The material of the mounting member 123 is silicone. The movable bead 130 can squeeze the mounting member 123 to produce a slight displacement when rotating, which can effectively avoid the movable bead 130 and the transmission shaft 140 from getting stuck and improve the stability of the transmission mechanism. A first pressure cover 124 is also fixed above the mounting member 123. The first pressure cover 124 is also made of silicone and is used to fix the mounting member 123 on the movable slider 120.

[0051] In one embodiment, the reciprocating motion mechanism 100 of the fascia gun also includes a motor 150 and a bracket 160. The motor 150 is fixed on the bracket 160. The output end of the motor 150 is connected to the transmission shaft 140. The end of the piston 110 away from the moving slider 120 is movably connected to the bracket 160 and moves back and forth along its own axial direction.

[0052] like Figure 2 and Figure 3 As shown, in one embodiment of the utility model, the reciprocating motion mechanism 100 of the fascia gun also includes a motor 150 and a bracket 160. The motor 150 is fixedly mounted on the bracket 160 by screws. The output end of the motor 150 is connected to the transmission shaft 140 to drive the transmission shaft 140 to rotate along the axial direction. The piston 110 and the movable slider 120 are connected by a connecting shaft 111. The end of the movable slider 120 away from the piston 110 is plugged into the transmission shaft 140 through an axial hole 121. The piston 110 is slidably mounted on the bracket 160. When the motor 150 rotates, the movable slider 120 and the piston 110 reciprocate together. The bracket 160 plays a good stabilizing and bearing role, and a plurality of silicone buffers 162 are also installed on the bracket 160, which are used to abut the shell to reduce the vibration generated by the operation of the motor 150, avoid the wear caused by the rigid contact between the movement and the shell, and extend the service life; in addition, a wiring 151 is also provided on the motor 150 for connecting to a power supply and a main control board (not shown) for controlling the start and stop of the motor 150.

[0053] In one embodiment, a sliding shaft 161 is installed on the bracket 160, and the sliding shaft 161 is set parallel to the movement direction of the piston 110. A through hole 125 is opened on the moving slider 120, and the sliding shaft 161 is movably inserted into the through hole 125, so that the moving slider 120 reciprocates on the sliding shaft 161.

[0054] like Figures 1 to 3 As shown, in one embodiment of the present invention, a sliding shaft 161 is provided on both sides of the movable slider 120 on the bracket 160, and the axial direction of the sliding shaft 161 is parallel to the moving direction of the piston 110 and the movable slider 120. Figure 4 Through holes 125 are provided on both sides of the movable slider 120, and two sliding shafts 161 are movably provided in the two through holes 125 to play a guiding role, so that the movable slider 120 is more stable during the movement. It should be noted that setting two sliding shafts 161 is a preferred embodiment. In some other embodiments of the utility model, the number of sliding shafts 161 and through holes 125 is not limited, and the main purpose is to maintain stability.

[0055] In one embodiment, a sleeve 126 and a ball 127 are disposed in the through hole 125 , and a mounting groove 1261 is disposed on the inner wall of the sleeve 126 , and the mounting groove 1261 is used to mount the ball 127 , and the ball 127 is rotatably disposed in the mounting groove 1261 and contacts the outer peripheral surface of the sliding shaft 161 .

[0056] like Figure 3 and Figure 7 As shown, in order to reduce the friction between the moving slider 120 and the sliding shaft 161, in one embodiment of the utility model, an annular kit 126 is installed in the through hole 125, the kit 126 is sleeved on the sliding shaft 161 and a spherical mounting groove 1261 is provided on the inner wall, and a ball 127 is provided in the mounting groove 1261. The surface of the ball 127 is in point contact with the surface of the sliding shaft 161. When the moving slider 120 makes a reciprocating motion relative to the bracket 160, the ball 127 rotates in the mounting groove 1261 to reduce friction, and the kit 126 is made of soft silicone material to avoid jamming. In addition, in order to fix the kit 126 and the ball 127, a second pressure cover 128 made of soft silicone is connected to the moving slider 120 at the through hole 125 to prevent the kit 126 and the ball 127 from falling off.

[0057] In one embodiment, the number of the mounting grooves 1261 and the number of the balls 127 is set to be multiple, and the multiple mounting grooves 1261 and the balls 127 are evenly arranged around the circumference of the sliding shaft 161 .

[0058] like Figure 7 As shown, in one embodiment of the utility model, a plurality of mounting grooves 1261 are provided on the kit 126, and the plurality of mounting grooves 1261 are evenly distributed along the circumference of the sliding shaft 161, and a ball 127 is installed in each mounting groove 1261. It can be understood that the plurality of ball 127 and the sliding shaft 161 are in point contact, and the plurality of ball 127 support the sliding shaft 161. At the same time, multi-point sliding can further reduce friction and increase the service life of components. Therefore, the resistance that needs to be overcome by moving the slider 120 relative to the bracket 160 is relatively small, and the motor 150 does not need to be in long-term high-power operation to avoid generating a lot of heat and high-decibel noise.

[0059] In one embodiment, the reciprocating motion mechanism 100 of the fascia gun further includes a piston sleeve 170 and a sleeve 180 . The piston sleeve 170 is fixedly mounted on the bracket 160 at one end away from the motor 150 . The sleeve 180 is mounted in the piston sleeve 170 . The piston 110 is movably inserted into the sleeve 180 .

[0060] like Figure 3As shown, in one embodiment of the utility model, the reciprocating motion mechanism 100 of the fascia gun also includes a piston sleeve 170 fixed on the bracket 160 and a sleeve 180 sleeved on the piston 110. Specifically, the piston sleeve 170 is installed on the bracket 160 at one end close to the piston 110, and is connected to the bracket 160 through a third pressure cover 171 to fix the piston sleeve 170 on the bracket 160. The sleeve 180 is installed in the bracket 160 for the piston 110 to pass through. The piston 110 reciprocates in the sleeve 180 along the axial direction. The sleeve 180 is used to reduce friction and fix the movement direction of the piston 110. It should be noted that in order to reduce the collision between the movement and the housing, the third pressure cover 171 is made of soft silicone material and is fixedly connected to the bracket 160 by screws.

[0061] The utility model also proposes a fascia gun, which includes a fascia gun reciprocating motion mechanism 100. The specific structure of the fascia gun reciprocating motion mechanism 100 refers to the above embodiment. Since the fascia gun adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0062] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fascia gun reciprocating motion mechanism, characterized in that: include: A piston, the piston being used to connect to the massage head; A movable slider, the movable slider is fixedly connected to an end of the piston away from the massage head; A transmission shaft is rotatably connected to the movable slider to drive the movable slider and the piston to perform reciprocating motion along the axial direction of the piston.

2. The reciprocating motion mechanism of the fascia gun according to claim 1, characterized in that: The reciprocating motion mechanism of the fascia gun also includes a movable ball, which is installed on the movable slider. The outer periphery of the transmission shaft is provided with a slideway connected end to end, and the movable ball is at least partially slidably arranged in the slideway.

3. The reciprocating motion mechanism of the fascia gun according to claim 2, characterized in that: The movable slider is provided with an axial hole along the axial direction of the piston, the movable ball is installed on the inner wall of the axial hole and at least partially protrudes in the axial hole, the transmission shaft has one end of the slideway rotatably set in the axial hole, and the protruding part of the movable ball is slidably set in the slideway.

4. The reciprocating motion mechanism of the fascia gun as claimed in claim 3, characterized in that: The movable slider is provided with a mounting position connected to the shaft hole, a mounting piece is fixed in the mounting position, a recess is provided on the side of the mounting piece close to the transmission shaft, the slideway and the cross section of the recess form concentric circles, and the movable bead is installed in the concentric circle.

5. The fascia gun reciprocating motion mechanism according to any one of claims 1 to 4, characterized in that: The reciprocating motion mechanism of the fascia gun also includes a motor and a bracket, the motor is fixed on the bracket, the output end of the motor is connected to the transmission shaft, and the end of the piston away from the moving slider is movably connected to the bracket and moves back and forth along its own axial direction.

6. The reciprocating motion mechanism of the fascia gun according to claim 5, characterized in that: A sliding shaft is installed on the bracket, and the sliding shaft is arranged parallel to the moving direction of the piston. A through hole is opened on the moving slider, and the sliding shaft is movably inserted into the through hole, so that the moving slider performs reciprocating motion on the sliding shaft.

7. The reciprocating motion mechanism of the fascia gun according to claim 6, characterized in that: A set and a ball are arranged in the through hole, and a mounting groove is arranged on the inner wall of the set for mounting the ball. The ball is rotatably arranged in the mounting groove and contacts with the outer peripheral surface of the sliding shaft.

8. The reciprocating motion mechanism of the fascia gun according to claim 7, characterized in that: The number of the mounting grooves and the balls is set to be multiple, and the multiple mounting grooves and the balls are evenly arranged around the circumference of the sliding shaft.

9. The reciprocating motion mechanism of the fascia gun according to claim 5, characterized in that: The reciprocating motion mechanism of the fascia gun also includes a piston sleeve and a sleeve. The piston sleeve is fixedly mounted on an end of the bracket away from the motor, the sleeve is mounted in the piston sleeve, and the piston is movably arranged in the sleeve.

10. A fascia gun, characterized in that: It comprises a fascia gun reciprocating motion mechanism as described in any one of claims 1 to 9.

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