CN221042536U - Reciprocating driving mechanism and fascia gun - Google Patents

Abstract

The application discloses a reciprocating driving mechanism and a fascia gun, and belongs to the technical field of transmission mechanisms. The reciprocating drive mechanism includes: a driving member; the transmission piece is in transmission connection with the driving piece, the driving piece is used for driving the transmission piece to rotate, and the transmission piece is provided with a driving surface which is arranged at an included angle with the rotation axis of the transmission piece; the output piece is matched with the driving surface of the transmission piece so that the driving surface of the transmission piece can drive the output piece to reciprocate; and the adjusting piece is connected with the transmission piece and is used for adjusting the angle between the driving surface of the transmission piece and the rotation axis of the transmission piece so as to adjust the amplitude of the output piece. The reciprocating driving mechanism has the advantages of good reciprocating stability, low noise, adjustable amplitude of the output piece and applicability to various different application scenes.

Description

Reciprocating driving mechanism and fascia gun

Technical Field

The application belongs to the technical field of transmission mechanisms, and particularly relates to a reciprocating driving mechanism and a fascia gun.

Background

Fascia gun, also known as deep myofascial impactor, is a soft tissue massaging tool that relaxes the soft tissue of the body by high frequency impact. The existing fascia gun drives the massage head to do reciprocating motion through the piston, the massage head is in contact with a human body, high-frequency vibration is generated to act on deep layers of muscles, and the fascia gun has the effects of reducing local tissue tension, relieving pain, promoting blood circulation and the like. Different users have different amplitude requirements on the fascia gun, for example, professional athletes need to have deep amplitude depth to relieve the muscle after exercise, and common consumers, especially novice users, need to use the fascia gun with shallow amplitude depth at first, then gradually deepen the amplitude along with the use requirement, and the fascia gun in the related art cannot adjust the massage amplitude.

Disclosure of utility model

The application aims to at least solve the technical problem that the amplitude of the fascia gun cannot be adjusted in the related art to a certain extent. To this end, the present application provides a reciprocating drive mechanism and fascia gun.

In a first aspect, an embodiment of the present application provides a reciprocating drive mechanism, including: a driving member; the transmission piece is in transmission connection with the driving piece, the driving piece is used for driving the transmission piece to rotate, and the transmission piece is provided with a driving surface which is arranged at an included angle with the rotation axis of the transmission piece; the output piece is matched with the driving surface of the transmission piece so that the driving surface of the transmission piece can drive the output piece to reciprocate; and the adjusting piece is connected with the transmission piece and is used for adjusting the angle between the driving surface of the transmission piece and the rotation axis of the transmission piece so as to adjust the amplitude of the output piece.

In some embodiments, the transmission member includes a turntable and a first connection member, the turntable is rotatably connected to the first connection member, the first connection member is in transmission connection with the rotation driving member, the driving surface is two side surfaces of the turntable along the rotation axis direction, and the turntable is connected to the adjustment member.

In some embodiments, the reciprocating drive mechanism further comprises a second link; the second connecting piece is respectively connected with the turntable and the adjusting piece; the adjusting piece can drive the second connecting piece to move relative to the first connecting piece, so that the rotary table rotates relative to the first connecting piece, and the angle of the driving surface relative to the rotation axis of the first connecting piece is adjusted.

In some embodiments, the adjustment member comprises a gear member, a force transmitting member, and a force applying member; the gear piece is connected with the first connecting piece in a sliding way and rotates along with the first connecting piece; the second connecting piece is connected with the gear piece; the first side of the force transmission piece is connected with the gear piece in a sliding manner along the rotation direction of the first connecting piece, and the second side of the force transmission piece is connected with the force application piece.

In some embodiments, the gear member is provided with a limiting groove, and the first side of the force transmission member is located in the limiting groove and is slidably connected with the limiting groove.

In some embodiments, the first side of the force transmission member is sleeved on the first connecting member, is in sliding connection with the first connecting member along the rotation axis of the first connecting member, and is in rotational connection with the first connecting member along the rotation circumference of the first connecting member; the gear piece is sleeved on the first side of the force transmission piece and is rotationally connected with the force transmission piece along the rotation circumferential direction of the first connecting piece.

In some embodiments, the force application member comprises a knob and a screw rod which are fixedly connected, and the force transmission member is in threaded connection with the screw rod; and rotating the knob to enable the screw rod to rotate, driving the force transmission piece and the gear piece to move relative to the first connecting piece, so that the rotary table rotates relative to the first connecting piece, and the angle of the driving surface relative to the rotation axis of the first connecting piece is adjusted.

In some embodiments, the force transfer member and the force application member are fixedly connected.

In some embodiments, the drive member has an output shaft that is coaxial, parallel or at an angle to the rotational axis of the drive member; the driving part comprises a motor, a turbine and a worm, wherein the turbine is arranged on the output shaft, the worm is matched with the turbine to form a worm turbine pair, and the driving part is fixedly connected with the worm.

In some embodiments, the output member is provided with a mounting cavity, and the driving surface portion of the transmission member is located in the mounting cavity.

In some embodiments, the output member includes an output member body and a plurality of oppositely disposed resilient pins disposed on the output member body; the elastic thimble comprises an elastic piece and a thimble, one side of the elastic piece is fixedly connected with the output piece body, and the other side of the elastic piece is fixedly connected with the thimble; the elastic ejector pins are arranged to form the mounting cavity, and the driving surface is contacted with the ejector pins.

In a second aspect, the present application provides a fascia gun, including the reciprocating driving mechanism provided in the first aspect, a housing, and a massage head, where the reciprocating driving mechanism is mounted on the housing, an output member of the reciprocating driving mechanism is slidably connected with the housing along a reciprocating direction of the output member, and the massage head is connected to the output member.

The utility model has at least the following beneficial effects:

The reciprocating driving structure provided by the application comprises a driving piece, a transmission piece, an output piece and an adjusting piece, wherein the driving piece, the transmission piece and the output piece form a basic mechanism for realizing reciprocating motion, the driving piece drives the transmission piece to rotate, the transmission piece is provided with a driving surface which is arranged at an included angle with the rotation axis of the transmission piece, and the output piece is matched with the driving surface. After the design, when the transmission piece rotates under the action of the rotation driving piece, the driving surface on the transmission piece undulates, and then the transmission piece is driven to do reciprocating motion. The reciprocating driving structure provided by the application is beneficial to ensuring that the output piece stably reciprocates, reducing noise generated by the action of the reciprocating driving mechanism, reducing the volume of the reciprocating driving mechanism and prolonging the service life of the reciprocating driving mechanism. The adjusting piece is connected to the transmission piece, and the angle between the driving surface on the transmission piece and the rotation axis of the transmission piece is adjusted by the adjusting piece, so that the fluctuation amplitude in the rotation process of the driving surface is adjusted, and the amplitude of the output piece is adjusted. After the design, the amplitude of the reciprocating driving mechanism can be adjusted, so that a user can adjust different amplitudes according to different scenes, and the use scenes of the reciprocating driving mechanism are more various. According to the application, the amplitude adjustment is realized by adjusting the angle between the driving surface and the rotation axis of the transmission part, and the angle can be continuously adjusted, so that the reciprocating driving mechanism can realize stepless amplitude adjustment, the reciprocating driving mechanism can be suitable for more application scenes, and meanwhile, the amplitude adjustment mode of the reciprocating driving mechanism is simpler.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic diagram of a reciprocating drive mechanism in one or more embodiments of the application.

Fig. 2 shows a side view of the reciprocating drive mechanism of fig. 1 from a first perspective.

Fig. 3 shows a side view of the reciprocating drive mechanism of fig. 1 from a second perspective.

Fig. 4 shows a schematic diagram of an exploded construction of the reciprocating drive mechanism shown in fig. 1.

Fig. 5 shows a schematic structural view of a reciprocating drive mechanism in one or more embodiments of the application.

Fig. 6 shows a side view of the reciprocating drive mechanism of fig. 5.

Fig. 7 shows an exploded view of the reciprocating drive mechanism of fig. 5.

Fig. 8 shows a schematic of the mechanism of a fascia gun in one or more embodiments of the application.

Reference numerals: 1000. fascia gun; 100. a reciprocating drive mechanism; 110. a driving member; 111. a motor; 1111. an output shaft; 112. a turbine; 113. a worm; 120. a transmission member; 121. a turntable; 121A, a connection portion; 121B, driving surface; 122. a first connector; 130. an output member; 130A, mounting cavity; 131. an output member body; 132. an elastic ejector pin; 1321. an elastic member; 1322. a thimble; 140. an adjusting member; 1421. a gear member; 1421A, limit groove; 1422. a force transmitting member; 1423. a force application member; 14231. a knob; 14232. a screw rod; 150. a second connector; 160. a bearing; 170. a shaft sleeve; 200. a housing; 300. a massage head.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. 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.

It should be noted that all the directional indicators in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture, and if the specific posture is changed, the directional indicators are correspondingly changed.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Fascia gun, also known as deep myofascial impactor, is a soft tissue massaging tool that relaxes the soft tissue of the body by high frequency impact. The existing fascia gun drives the massage head to do reciprocating motion through the piston, the massage head is in contact with a human body, high-frequency vibration is generated to act on deep layers of muscles, and the fascia gun has the effects of reducing local tissue tension, relieving pain, promoting blood circulation and the like.

The fascia gun in the related art mostly uses a crank slider driving mechanism and an eccentric wheel driving mechanism to realize the reciprocating motion of the massage head. Along with the continuous progress of the technology, the reciprocating motion of the massage head can be realized by driving a driving mechanism for rotating the inclined plane turntable, or the reciprocating motion of the fascia gun can be realized by driving a cylindrical cam to rotate through a motor, wherein the cylindrical cam is provided with a cam groove and a driving mechanism matched with the cam groove through a piston rod. When the fascia gun is used, the massage amplitude needs to be adjusted according to the physical condition, the massage position and the like of a user.

For the reciprocating driving mechanism driving the inclined plane turntable, the vibration pair of the reciprocating driving mechanism cannot be adjusted, when the reciprocating driving mechanism is applied to the fascia gun, the amplitude of the fascia gun cannot be adjusted, the striking distance of a massage head on the fascia gun is fixed, pain can be felt at the position with less striking muscles under the condition of larger striking distance, and the too large massage effect cannot be achieved at the position with more striking muscles under the condition of smaller striking distance, so that the requirements of different amplitudes of the fascia gun are far satisfied when different positions of customer massage cannot be met.

Therefore, in the mechanism for realizing the reciprocating driving through the inclined turntable in the related art, the amplitude of the reciprocating driving mechanism cannot be adjusted, and when the reciprocating driving mechanism is applied to the fascia gun, the fascia gun has the technical problem that the amplitude cannot be adjusted. The embodiment of the application provides a reciprocating driving mechanism which can at least solve the technical problems to a certain extent.

The application is described below with reference to specific embodiments in conjunction with the accompanying drawings:

Referring to fig. 1, 2 and 3, an embodiment of the present application provides a reciprocating driving mechanism 100, and the reciprocating driving mechanism 100 provided by the present application can adjust the amplitude of the output member 130 by adjusting the angle between the driving surface 121B of the transmission member 120 and the rotation axis of the transmission member 120.

The embodiment of the present application provides a reciprocating drive mechanism 100, which includes a driving member 110, a transmission member 120, an output member 130, and an adjustment member 140. The transmission member 120 is in driving connection with the driving member 110, the driving member 110 is used for driving the transmission member 120 to rotate, and the transmission member 120 is provided with a driving surface 121B which is arranged at an included angle with the rotation axis of the transmission member. The output member 130 is configured to cooperate with the driving surface 121B of the transmission member 120, so that the driving surface 121B of the transmission member 120 can drive the output member 130 to reciprocate. The adjusting member 140 is connected to the transmission member 120 for adjusting an angle between the driving surface 121B of the transmission member 120 and the rotation axis of the transmission member 120 to adjust the amplitude of the output member 130.

Since the transmission member 120 has the driving surface 121B disposed at an angle with respect to the rotation axis, when the transmission member 120 rotates around the rotation axis, the driving surface 121B will undulate reciprocally, and the adjustment member 140 and the driving surface 121B cooperate together, so that the adjustment member 140 can reciprocate in extension-retraction along with the undulation of the driving surface 121B. When the reciprocating driving mechanism 100 is used, a bracket is usually arranged on the reciprocating driving mechanism 100, the output piece 130 is in sliding connection with the bracket along the extending and contracting direction of the output piece 130, and the output piece 130 cannot rotate around the axis of the output piece 130 under the action of the driving surface 121B after design, but only extends and contracts around the extending and contracting direction, so that the reciprocating motion can be better realized. The output member 130 and the support are slidably coupled in a variety of ways, typically by way of a slide rail engaging a slide slot. Meanwhile, the driving member 110, the adjusting member 140, and the like are mounted on a bracket, which provides positioning and support for them.

The applicant of the present application found during the design process that the inclination angle of the driving surface 121B and the rotation axis of the transmission member 120 affects the amplitude of the reciprocating driving mechanism 100, whereas the angle between the driving surface 121B and the rotation axis of the moving member in the related art is constant, which makes the amplitude of the related art cannot be adjusted. Therefore, the present application adjusts the angle between the driving surface 121B and the rotation axis of the transmission member 120 by the adjusting member 140, so that the fluctuation range of the driving surface 121B changes when the transmission member 120 rotates, and the output member 130 cooperates with the driving surface 121B, so that the amplitude of the reciprocating motion of the output member 130 changes.

In the motion process of the reciprocating driving mechanism 100 provided by the application, the driving surface 121B circularly generates thrust with opposite extending and retracting directions for the output piece 130, and the driving surface 121B has the advantages of uniform force transmission and continuous force transmission. Meanwhile, the amplitude of the reciprocating driving mechanism 100 can be adjusted by the design of the adjusting piece 140, so that a user can adaptively adjust according to different scenes and working conditions when using the reciprocating driving mechanism, the reciprocating driving mechanism is more convenient to use, and the reciprocating driving mechanism can be used in various scenes. According to the application, the amplitude adjustment is realized by adjusting the angle between the driving surface 121B and the rotation axis of the transmission member 120, the angle can be continuously adjusted, and further the amplitude adjustment interval of the application is more various, so that stepless amplitude adjustment can be realized, the reciprocating driving mechanism 100 of the application can be suitable for more application scenes, and meanwhile, the amplitude adjustment mode of the application is simpler.

In some embodiments, as shown in fig. 2 and 3, in order to simplify the structure of the transmission member 120 and facilitate the processing of the transmission member 120, the transmission member 120 includes a turntable 121 and a first connecting member 122, where the turntable 121 is rotatably connected to the first connecting member 122, the first connecting member 122 is in driving connection with the rotation member 110, the driving surfaces 121B are disposed on two sides of the turntable 121 along the rotation axis direction (in the example of the structure shown in fig. 1, the driving surfaces 121B are a left end surface and a right end surface of the turntable 121), and the turntable 121 is rotatably connected to the adjustment member 140. The driving surface 121B is disposed on the rotary table 121, and the rotary table 121 is rotationally connected with the first connecting member 122, the first connecting member 122 is in transmission connection with the driving member 110, the rotation axis of the transmission member 120 is the rotation axis of the first connecting member 122, when the adjusting member 140 drives the rotary table 121 to rotate along the first connecting member 122 by a certain angle, the rotary table 121 drives the driving surface 121B to rotate together, so that the angle between the driving surface 121B and the rotation axis is changed, and when the driving surface 121B rotates under the driving of the first connecting member 122, the fluctuation range of the driving surface 121B is changed, thereby adjusting the amplitude of the reciprocating driving mechanism 100 of the present application. The angle of the driving surface 121B is more convenient to adjust by adjusting the driving surface 121B driven by the rotating disc 121. The transmission member 120 includes a turntable 121 and a first connecting member 122, and the transmission member 120 has a small number of parts and a simple structure, and the turntable 121 and the first connecting member 122 are easily connected in a rotation manner, so that the transmission member 120 is more convenient to process. In the reciprocating driving mechanism 100 of the present application, when the reciprocating driving mechanism reciprocates, the two driving surfaces 121B on the turntable 121 alternately apply forces to the output member 130 to extend or retract the output member 130, and in some embodiments of the present application, the two driving surfaces 121B are parallel to each other, although the two driving surfaces 121B are not parallel to each other, so that the reciprocating movement of the output member 130 can be achieved.

The driving surface 121B may be a plane as shown in fig. 1, 2 and 3, and of course, the driving surface 121B may be a wave-shaped surface, etc., and the shape of the driving surface 121B is various and is not particularly limited in the present application. When the driving surface 121B has a different shape of a line, different reciprocating effects can be achieved, for example: when the driving surface 121B is a wavy surface, the output member 130 may be configured to perform a general extension movement during one extension-retraction reciprocation period of the output member 130, but the extension process is an extension-retraction-extension-retraction. Also, a progressive retraction of the total retraction motion, but the retraction process is retract-extend-retract-extend, i.e., the distance extended is less than the distance retracted on the upper side, the total trend of the output member 130 is to progressively retract, the wavy driving surface 121B causes the output member 130 to vibrate and extend during the extension process and to vibrate and retract during the retraction process, so that when applied to the fascia gun 1000, more different experiences can be brought to the user, more diversified functions can be realized, and different massage effects can be brought.

The structure of the adjusting member 140 is various, and it may be an electronic telescopic rod, a servo motor, etc., and for convenience of understanding, the following description will be given: when the telescopic rod is an electronic telescopic rod, the telescopic end of the electronic telescopic rod is connected with the rotary table 121, the base of the electronic telescopic rod is connected with the first connecting piece 122, and the telescopic rod moves in a telescopic mode to drive the rotary table 121 to rotate. When being servo motor, fixedly be provided with the connecting axle on the carousel 121, carousel 121 rotates through connecting axle and first connecting piece 122 and connects, and servo motor's output shaft 1111 is connected with the connecting axle transmission of carousel 121, drives servo motor and rotates, and then drives the connecting axle and rotate, and then makes carousel 121 go up the angle of driving surface 121B with the axis of rotation of first connecting piece 122 change.

In some embodiments, to facilitate connection of the adjustment member 140 and the turntable 121, the reciprocating drive mechanism 100 further includes a second connection member 150; the second connecting member 150 is connected to the rotary table 121 and the regulating member 140, respectively; the adjusting member 140 can drive the second connecting member 150 to move relative to the first connecting member 122, so that the turntable 121 rotates relative to the rotation axis of the first connecting member 122, so as to adjust the angle of the driving surface 121B relative to the rotation axis of the first connecting member 122. After the design, the adjusting piece 140 and the rotary table 121 are connected together through the second connecting piece 150, and the adjusting piece 140 drives the second connecting piece 150 to move so as to drive the rotary table 121 to rotate around the first connecting piece 122, so that the adjusting piece 140 can be installed far away from the rotary table 121, and the layout of each component of the reciprocating driving mechanism 100 of the application is improved to a certain extent.

As shown in fig. 1, 4, 5 and 7, in some embodiments, the turntable 121 has a connection portion 121A for connecting with the adjusting member 140, and when the turntable 121 rotates around the first connection member 122 to adjust the angle of the driving surface 121B, the movement path of the connection portion is curved, and the second connection member 150 is provided to facilitate adapting the movement path of the connection portion, so as to facilitate adjustment of the adjusting member 140. The second connecting piece 150 may be an elastic piece such as a spring or a rubber block, and when the elastic piece is selected, the second connecting piece 150 can be fixedly connected with the connecting portion 121A of the adjusting piece 140 and the turntable 121, and the curved movement path of the connecting portion 121A is adapted by the deformation of the second connecting piece 150. The second connecting piece 150 may also be a rigid piece that cannot be deformed, and when the second connecting piece 150 is a rigid piece, the second connecting piece 150 is rotationally connected with the connecting portion 121A of the adjusting piece 140 and the turntable 121, and the second connecting piece 150 can rotate around the connecting portion 121A through the rotationally connected relationship, so as to adapt to the curved movement path of the connecting portion 121A, and avoid the situation that the turntable 121 is blocked and cannot rotate. The user may select an appropriate connection relationship for the second connector 150 according to the material of the second connector 150, the structure of the adjuster 140, and the like, which is not limited in the present application.

In some embodiments, the adjustment member 140 includes a gear member 1421, a force transmitting member 1422, and a force transmitting member 1423; the gear 1421 is slidably connected to the first connecting member 122 and rotates along with the first connecting member 122; the second connecting member 150 is connected to the gear 1421; the first side of the force transmission member 1422 is slidably connected to the gear member 1421 along the rotation direction of the first connecting member 122, and the second side of the force transmission member 1422 is connected to the force application member 1423.

After such design, the second connecting piece 150 connects the rotary disc 121 and the gear 1421 together, the driving piece 110 drives the first connecting piece 122 to rotate, the first connecting piece 122 drives the rotary disc 121 and the second connecting piece 150 to rotate, and the gear 1421 and the first connecting piece 122 are in sliding connection along the circumferential direction of the rotation axis of the first connecting piece 122, so that the gear 1421 can rotate along with the first connecting piece 122. Through the connection of the force applying member 1423 and the force transferring member 1422, the connection of the force transferring member 1422 and the gear member 1421, and the sliding connection of the gear member 1421 and the first connecting member 122, the gear member 1421 can slide on the first connecting member 122 under the action of the force applying member 1423, so as to change the position of the gear member 1421, and further change the position of the second connecting member 150 connected to the gear member 1421, thereby driving the turntable 121 to rotate and changing the angle of the driving surface 121B.

The sliding directions of the gear 1421 and the first connecting member 122 are various, and as shown in fig. 1 and 5, they may slide along the rotation axis of the first connecting member 122, that is, the sliding direction of the gear 1421 is parallel to the rotation axis of the first connecting member 122. Of course, the sliding direction of the gear 1421 may not be parallel to the rotation axis of the first connecting member 122, as long as the gear 1421 slides to drive the second connecting member 150 to change its position, and further drive the driving surface 121B to change its angle, so the direction of the sliding connection between the gear 1421 and the first connecting member 122 is not limited in the present application.

The force transmitting member 1422 connects the force transmitting member 1423 and the gear member 1421 together, and is configured to transmit the force on the force transmitting member 1423 to the gear member 1421, so as to drive the gear member 1421 to move. The force transmission member 1422 has a first side and a second side, the second side of the force transmission member 1422 is connected with the force application member 1423, the first side of the force transmission member 1422 is connected with the gear member 1421, specifically, the force transmission member 1422 and the gear member 1421 are slidably connected along the rotation direction of the first connecting member 122, that is, when the gear member 1421 rotates along with the first connecting member 122, the force transmission member 1422 is kept motionless, and the force transmission member 1422 cannot rotate along with the gear member 1421 together, so that after the design, a user can adjust the amplitude of the reciprocating driving mechanism 100 in real time in the motion process of the reciprocating driving mechanism 100, so that the use of the reciprocating driving mechanism 100 is more convenient. Meanwhile, after such design, since the gear 1421 slides on the first connecting piece 122 and continuously moves, the position of the gear 1421 is continuously changed, and the second connecting piece 150 can drive the turntable 121 to continuously rotate, so that the continuous adjustment of the amplitude of the reciprocating driving mechanism 100 of the present application, namely, stepless adjustment, is realized.

The manner in which the first side of the force transfer member 1422 is slidably coupled to the gear 1421 is varied:

In some embodiments, as shown in fig. 1, 2, 3 and 4, a limiting groove 1421A is formed on the gear 1421, and a first side of the force transmission member 1422 is located in the limiting groove 1421A and is slidably connected to the limiting groove 1421A. The limiting groove 1421A has a simple structure and is convenient to process, and is helpful to simplify the structures of the gear 1421 and the force transmission member 1422. The gear 1421 will rotate along the rotation axis of the first connecting member 122 along with the first connecting member 122, and in the rotation process of the gear 1421, it should be ensured that the first side of the force transmission member 1422 is always located in the limiting groove 1421A, so as to prevent the first side of the force transmission member 1422 from falling out of the limiting groove 1421A, which results in an unregulated amplitude. In some embodiments, as shown in fig. 1, 2, 3 and 4, a circle of circular limiting groove 1421A is disposed on the gear 1421 around the rotation axis of the first connecting member 122, and the center of the limiting groove 1421A is located on the rotation axis, so that the first side of the force transmitting member 1422 can be located in the limiting groove 1421A all the time.

In some embodiments, as shown in fig. 5, 6 and 7, the first side of the force transmission member 1422 is sleeved on the first connecting member 122, slidably connected to the first connecting member 122 along the rotation axis of the first connecting member 122, and rotationally connected to the first connecting member 122 along the rotation circumferential direction of the first connecting member 122; the gear 1421 is sleeved on the first side of the force transmission member 1422, and is rotationally connected with the force transmission member 1422 along the rotation circumferential direction of the first connecting member 122. That is, the gear 1421 is sleeved on the first side of the force transmission member 1422 and is rotationally connected with the first side of the force transmission member 1422, so that the gear 1421 can rotate along with the first connection member 122, and the force transmission member 1422 does not rotate along with the first connection member 122; meanwhile, the force transmission member 1422 can slide along the rotation axis of the first connecting member 122 on the first connecting member 122, so that the position of the gear member 1421 can be adjusted by the force transmission member 1422, and further the amplitude of the output member 130 can be adjusted. In some embodiments, as shown in fig. 7, in order to reduce the friction force at the connection part, a shaft sleeve 170 is sleeved on the first connecting piece 122, the shaft sleeve 170 is rotationally connected with the first connecting piece 122, a gear 1421 is sleeved on the shaft sleeve 170 and is fixed on the shaft sleeve 170, and the first connecting piece 122 and the gear 1421 are rotationally connected through the shaft sleeve 170; a bearing 160 is installed between the force transmission member 1422 and the gear member 1421, the rotational connection between the force transmission member 1422 and the gear member 1421 is realized through the bearing 160, and the friction between the gear member 1421 and the force transmission member 1422 during rotation is reduced through the bearing 160, so that the service life of the reciprocating driving mechanism 100 of the present application is prolonged.

In some embodiments, as shown in fig. 1, 2, 3 and 6, to facilitate adjusting the position of the gear 1421, the force-applying member 1423 includes a knob 14231 and a screw 14232 that are fixedly connected, and the force-applying member 1422 is screwed to the screw 14232. After such design, rotating the knob 14231 causes the screw rod 14232 to rotate, and because the force transmission member 1422 is in threaded connection with the screw rod 14232, the force transmission member 1422 moves along the axis of the screw rod 14232, and then drives the gear member 1421 to move, and then drives the second connecting member 150 to drive the turntable 121 to rotate around the first connecting member 122, so that the driving surface 121B rotates relative to the rotation axis of the first connecting member 122, and the inclination angle of the driving surface 121B relative to the rotation axis of the first connecting member 122 is adjusted. Through the design of the screw rod 14232 and the knob 14231, the user can adjust the amplitude more conveniently. In general, the reciprocating driving mechanism 100 of the present application is mounted on a support, two ends of a screw rod 14232 are slidably connected to the support along a rotation direction of the screw rod 14232, an avoidance groove is formed on the support, and a knob 14231 partially extends out of the avoidance groove, so that an operator can conveniently dial the knob 14231.

In some embodiments, as shown in fig. 5, 6 and 7, the force transfer member 1422 and the force application member 1423 are fixedly connected. After the design is adopted, the force application member 1423 is applied with a force to stir the force application member 1423 to drive the transmission member 120 to move together, so that amplitude adjustment is realized. In some embodiments, to facilitate the user's pulling of the force applying member 1423, the force applying member 1423 is provided with an anti-slip structure, such as an anti-slip groove, a rib, etc. The application is generally arranged on a bracket, a sliding groove for sliding the force application member 1423 is arranged on the bracket, the force application member 1423 is arranged in the sliding groove and is in sliding connection with the sliding groove, and a plurality of stop parts are generally arranged in the sliding groove to limit the force application member 1423.

In some embodiments, the driving member 110 has an output shaft 1111, and the output shaft 1111 of the driving member 110 and the rotation axis of the driving member 120 may be coaxially disposed, parallel disposed or disposed at an angle, which is not limited in the present application. In some embodiments of the present application, the driving member 110 includes a motor 111, a worm wheel 112 and a worm 113, the worm wheel 112 is mounted on the output shaft 1111, the worm 113 and the worm wheel 112 cooperate to form a worm-worm wheel pair, and the driving member 120 is fixedly connected with the worm 113. The worm wheel 112 and the worm 113 have larger transmission ratio and high transmission efficiency, which are beneficial to improving the reciprocating efficiency of the reciprocating driving mechanism 100 of the application, and meanwhile, the output shaft 1111 of the driving member 110 and the rotation axis of the transmission member 120 are arranged at an included angle, which is beneficial to reducing the size of the reciprocating driving mechanism 100 of the application and facilitating the miniaturization design of the reciprocating driving mechanism 100 of the application. In certain embodiments, the turbine 112 is a helical gear. In some embodiments, the reciprocating drive mechanism 100 of the present application is mounted on a support, the worm 113 and the support are rotatably connected in the circumferential direction of the worm 113, and the motor 111 is mounted on the support.

In some embodiments, to mate the output member 130 with the drive surface 121B, the output member 130 is provided with a mounting cavity 130A, and the drive surface 121B of the transmission member 120 is partially disposed within the mounting cavity 130A. During movement, the driving surface 121B contacts the wall surface of the mounting cavity 130A, and applies a force to the output member 130, thereby driving the output member 130 to reciprocate.

In some embodiments, to improve the stability of the transmission, the output member 130 includes an output member body 131 and a plurality of oppositely disposed elastic ejector pins 132 disposed on the output member body 131; the elastic thimble 132 comprises an elastic piece 1321 and a thimble 1322, one side of the elastic piece 1321 is fixedly connected with the output piece body 131, and the other side is fixedly connected with the thimble 1322; a mounting cavity 130A is formed between the plurality of elastic pins 132, and a driving surface 121B contacts the pins 1322. After the arrangement, the thimble 1322 is always contacted with the driving surface 121B under the action of the elastic piece 1321, so that the driving surface 121B can continuously drive the output piece 130 to act, the transmission stability is ensured, the noise in the transmission process is reduced, the abrasion between the driving surface 121B and the wall surface of the mounting cavity 130A is reduced, and the service life of the reciprocating driving mechanism 100 is prolonged. In some embodiments, spike 1322 has a hemispherical shape at an end near driving surface 121B to provide better coupling between driving surface 121B and spike 1322. The elastic member 1321 may be a spring, an elastic rubber block, or the like, and is not limited in the present application.

The working principle of the reciprocating drive mechanism 100 provided by the embodiment of the application is as follows: the driving member 110 is started, so that the driving member 110 drives the driving member 120 to rotate around the axis of the rotating shaft, the driving surface 121B on the driving member 120 circularly undulates, the driving surface 121B of the driving member 120 is matched with the output member 130, and the driving member 120 rotates to drive the output member 130 to reciprocate through the circularly undulation of the driving surface 121B. When the amplitude of the reciprocating motion of the output member 130 needs to be adjusted, a driving force is applied to the force application member 1423 to drive the force transmission member 1422 to act, and then drive the gear member 1421 to move along the first connecting member 122, and further drive the turntable 121 to rotate around the first connecting member 122, so that the angle between the driving surface 121B of the turntable 121 and the rotation axis of the first connecting member 122 is changed, and further the fluctuation range of the driving surface 121B is changed, and further the amplitude adjustment of the output member 130 is realized.

In summary, the reciprocating driving mechanism 100 provided in the embodiment of the application includes the driving member 110, the transmission member 120, the output member 130 and the adjusting member 140, where the driving member 110, the transmission member 120 and the output member 130 form a basic mechanism for implementing reciprocating motion, the driving member 110 drives the transmission member 120 to rotate, the transmission member 120 has a driving surface 121B disposed at an angle with respect to a rotation axis of the driving member 120, and the output member 130 is matched with the driving surface 121B. After such design, when the driving member 120 rotates under the action of the driving member 110, the driving surface 121B thereon undulates, so as to drive the driving member 120 to reciprocate. The reciprocating driving structure provided by the application is beneficial to ensuring that the output piece 130 stably reciprocates, reducing noise generated by the action of the reciprocating driving mechanism 100, reducing the volume of the reciprocating driving mechanism 100 and prolonging the service life of the reciprocating driving mechanism 100. The adjusting member 140 is connected to the transmission member 120, and the adjusting member 140 adjusts an angle between the driving surface 121B on the transmission member 120 and the rotation axis of the transmission member 120, so as to adjust the amplitude of the fluctuation in the rotation process of the driving surface 121B, and further adjust the amplitude of the output member 130. By the design, the amplitude of the reciprocating driving mechanism 100 can be adjusted, so that a user can adjust different amplitudes according to different scenes, and the use scenes of the reciprocating driving mechanism are more various. The amplitude adjustment is realized by adjusting the angle between the driving surface 121B and the rotation axis of the transmission piece 120, and the angle can be continuously adjusted, so that the reciprocating driving mechanism 100 can realize stepless amplitude adjustment, the reciprocating driving mechanism 100 can be suitable for more application scenes, and meanwhile, the amplitude adjustment mode of the reciprocating driving mechanism 100 is simpler.

Based on the same inventive concept, the embodiment of the present application also provides a fascia gun 1000, the fascia gun 1000 including the reciprocating driving mechanism 100, the housing 200 and the massage head 300 provided by the present application, the reciprocating driving mechanism 100 being mounted with the housing 200, the output member 130 of the reciprocating driving mechanism 100 being slidably connected with the housing 200 along the reciprocating direction of the output member 130, the massage head 300 being connected with the output member 130. By such design, the massage head 300 can reciprocate under the drive of the reciprocating driving mechanism 100 to massage the massage part, and meanwhile, the amplitude of the massage head can be adjusted, so that better massage experience is brought to the user. The structure of the housing 200 of the fascia gun 1000 and the structure of the massage head 300 are various, and are not limited in the present application. Since the fascia gun 1000 has the reciprocating driving mechanism 100 provided by the present application, it naturally has all the advantages of the reciprocating driving mechanism 100 of the present application, which are not described herein.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A reciprocating drive mechanism, comprising:

A drive member (110);

The transmission piece (120) is in transmission connection with the driving piece (110), the driving piece (110) is used for driving the transmission piece (120) to rotate, and the transmission piece (120) is provided with a driving surface (121B) which is arranged at an included angle with the rotation axis of the transmission piece;

An output member (130) for cooperating with the driving surface (121B) of the transmission member (120) so that the driving surface (121B) of the transmission member (120) can drive the output member (130) to reciprocate;

And the adjusting piece (140) is connected with the transmission piece (120) and is used for adjusting the angle between the driving surface (121B) of the transmission piece (120) and the rotation axis of the transmission piece (120) so as to adjust the amplitude of the output piece (130).

2. The reciprocating drive mechanism of claim 1, wherein: the transmission piece (120) comprises a rotary table (121) and a first connecting piece (122), the rotary table (121) is rotationally connected to the first connecting piece (122), the first connecting piece (122) is in transmission connection with the rotation driving piece (110), the driving surface (121B) is two side surfaces of the rotary table (121) along the rotation axis direction, and the rotary table (121) is connected with the adjusting piece (140).

3. The reciprocating drive mechanism of claim 2, further comprising a second connection (150);

The second connecting piece (150) is respectively connected with the rotary disc (121) and the adjusting piece (140);

The adjusting piece (140) can drive the second connecting piece (150) to move relative to the first connecting piece (122), so that the rotary table (121) rotates relative to the first connecting piece (122) to adjust the angle of the driving surface (121B) relative to the rotation axis of the first connecting piece (122).

4. A reciprocating drive mechanism according to claim 3, characterized in that the adjustment member (140) comprises a gear member (1421), a force transmitting member (1422) and a force applying member (1423);

the gear piece (1421) is in sliding connection with the first connecting piece (122) and rotates along with the first connecting piece (122); the second connecting piece (150) is connected with the gear piece (1421);

The first side of the force transmission piece (1422) is slidably connected to the gear piece (1421) along the rotation direction of the first connecting piece (122), and the second side of the force transmission piece (1422) is connected with the force application piece (1423).

5. The reciprocating drive mechanism of claim 4, wherein the gear member (1421) is provided with a limiting groove (1421A), and the first side of the force transmitting member (1422) is located in the limiting groove (1421A) and is slidably connected to the limiting groove (1421A).

6. The reciprocating drive mechanism as recited in claim 4, wherein a first side of the force transmitting member (1422) is sleeved on the first connecting member (122), slidably connected to the first connecting member (122) along a rotation axis of the first connecting member (122), and rotationally connected to the first connecting member (122) along a rotation circumferential direction of the first connecting member (122);

The gear member (1421) is sleeved on the first side of the force transmission member (1422), and is rotationally connected with the force transmission member (1422) along the rotation circumferential direction of the first connecting member (122).

7. The reciprocating drive mechanism of claim 4, wherein the force applying member (1423) comprises a knob (14231) and a screw (14232) fixedly connected, the force transmitting member (1422) being threadably connected to the screw (14232); rotating the knob (14231) causes the screw (14232) to rotate, driving the force transmission member (1422) and the gear member (1421) to move relative to the first connecting member (122), so that the turntable (121) rotates relative to the first connecting member (122), and the angle of the driving surface (121B) relative to the rotation axis of the first connecting member (122) is adjusted.

8. The reciprocating drive mechanism of claim 4, wherein the force transmitting member (1422) and the force applying member (1423) are fixedly connected.

9. The reciprocating drive mechanism according to any one of claims 1-8, characterized in that the drive member (110) has an output shaft (1111), the output shaft (1111) being coaxial, parallel or at an angle to the rotational axis of the transmission member (120);

Under the condition that an included angle is formed between the output shaft (1111) and the rotation axis of the transmission piece (120), the rotation piece (110) comprises a motor (111), a turbine (112) and a worm (113), the turbine (112) is installed on the output shaft (1111), the worm (113) and the turbine (112) are matched to form a worm-turbine pair, and the transmission piece (120) is fixedly connected with the worm (113).

10. A reciprocating drive mechanism according to any one of claims 1-8, characterized in that the output member (130) is provided with a mounting cavity (130A), the drive surface (121B) of the transmission member (120) being partly located in the mounting cavity (130A).

11. The reciprocating drive mechanism of claim 10, wherein the output member (130) comprises an output member body (131) and a plurality of oppositely disposed resilient pins (132) disposed on the output member body (131);

The elastic thimble (132) comprises an elastic piece (1321) and a thimble (1322), one side of the elastic piece (1321) is fixedly connected with the output piece body (131), and the other side of the elastic piece is fixedly connected with the thimble (1322);

The mounting cavity (130A) is formed among a plurality of elastic ejector pins (132), and the driving surface (121B) is contacted with the ejector pins (1322).

12. Fascia gun, characterized by comprising a reciprocating drive mechanism (100) according to any of claims 1-11, a housing (200) and a massage head (300), the reciprocating drive mechanism (100) being mounted to the housing (200), an output member (130) of the reciprocating drive mechanism (100) being slidingly connected to the housing (200) along a reciprocating direction of the output member (130), the massage head (300) being connected to the output member (130).