Variable amplitude reciprocating mechanism capable of synchronously indicating and adjusting amplitude and fascia gun

Abstract

The utility model belongs to the technical field of fascia guns, and particularly discloses a variable amplitude reciprocating mechanism capable of synchronously indicating and adjusting amplitude and a fascia gun, the variable amplitude reciprocating mechanism capable of synchronously indicating and adjusting amplitude comprises a driving module and an adjusting module, and the adjusting module is used for adjusting reciprocating sliding amplitude of a piston. The driving assembly further comprises a rotating piece used for driving the lead screw to rotate and a transmission piece connected between the rotating piece and the lead screw. The transmission piece is used for transmitting rotating power of the rotating piece to the lead screw. The adjusting module further comprises an amplitude display assembly. The amplitude display assembly comprises an indicating piece used for detecting or displaying the rotating angle or the rotating number of turns of the rotating piece and an amplitude data obtaining piece corresponding to the amplitude change relation between the indicating piece and the piston. According to the fascia gun, a variable amplitude reciprocating mechanism for synchronously indicating and adjusting the amplitude is installed in a shell, a massage head is arranged on a piston, and an amplitude data acquisition piece is arranged outside the shell. By the adoption of the scheme, the amplitude of the fascia gun can be adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of fascia guns, and specifically relates to a variable amplitude reciprocating mechanism for synchronously indicating and adjusting amplitude and a fascia gun. Background Art

[0002] A fascia gun, also known as a deep myofascial impactor, is a soft tissue massage tool that relaxes the body's soft tissues through high-frequency impacts. Existing fascia guns use a piston to drive the massage head to perform linear reciprocating motion. The massage head contacts the human body, generating high-frequency vibrations that act on the deep muscles, reducing local tissue tension, relieving pain, and promoting blood circulation. In actual use, fascia guns with different amplitudes are required when massaging different parts of the human body. For example, when massaging fragile and sensitive parts such as the face, a fascia gun with a smaller amplitude is required, while when massaging parts with larger muscle tissue such as the legs, a fascia gun with a relatively larger amplitude is required. Different people also have different amplitude usage requirements, so a fascia gun that cannot adjust the amplitude can no longer meet the needs of users. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a variable amplitude reciprocating mechanism and a fascia gun with synchronous indication of amplitude adjustment, so as to solve the problem of adjusting the amplitude of the fascia gun.

[0004] According to the embodiment of the utility model, the utility model adopts the following technical solution:

[0005] A variable amplitude reciprocating mechanism for synchronously indicating and adjusting amplitude comprises a driving module and an adjusting module, wherein the driving module comprises a crank slider mechanism formed by hingedly connecting a crank, an output rod, a connecting rod and a piston in sequence, the adjusting module is used to adjust the reciprocating sliding amplitude of the piston, the adjusting module comprises an adjusting rod, an adjusting block and a driving assembly for driving the adjusting block to slide, the adjusting rod has a swing end and an adjusting end, the swing end of the adjusting rod is hinged on the output rod, the adjusting end of the adjusting rod is hinged on the adjusting block, the driving assembly comprises a screw, and the adjusting block is threadedly connected to the screw; the driving assembly also comprises a rotating part for driving the screw to rotate and a transmission part connected between the rotating part and the screw, the transmission part is used to transmit the rotational power of the rotating part to the screw; the adjusting module also comprises an amplitude display assembly, the amplitude display assembly comprises an indicator for detecting or displaying the rotation angle or number of rotations of the rotating part and an amplitude data acquisition part corresponding to the relationship between the indicator and the piston amplitude change.

[0006] Compared with the prior art, the utility model has the following beneficial effects:

[0007] In this solution, the reciprocating sliding amplitude of the piston is adjusted by the adjustment module, specifically: by adjusting the position of the adjustment end of the adjustment rod, the reciprocating swing angle of the output rod is adjusted, so that the swing amplitude of the hinge point between the output rod and the connecting rod changes, and the change in the reciprocating swing distance of the horizontal projection point of the hinge point corresponds to the reciprocating amplitude of the piston, thereby realizing the adjustment of the amplitude.

[0008] Correspondingly, in this solution, the sliding of the adjustment block is achieved by the rotation of the screw rod, thereby driving the change in the position of the adjustment end of the adjustment rod. The distance of displacement of the adjustment block after each rotation of the screw rod is fixed, and the amplitude change of the piston corresponding to the displacement distance of the adjustment block is also fixed, so each rotation of the screw rod can correspond to a clear piston amplitude change data. By driving the screw rod to rotate through the rotating part, by designing the transmission ratio of the transmission part, the rotation angle or number of rotations of the screw rod can be determined through the rotation angle or number of rotations of the rotating part, and then the amplitude change of the piston can be known. In this solution, the rotation angle or number of rotations of the rotating part is detected or displayed by the indicator part, so that the user can obtain the amplitude data through the corresponding relationship between the rotation angle or number of rotations of the rotating part and the piston amplitude change, that is, through the amplitude data acquisition part.

[0009] Furthermore, a transmission ratio between the rotating member and the screw is less than 1.

[0010] Beneficial effect: When the rotating part rotates a small angle, it can drive the screw rod to rotate a larger angle. Such a design makes it easy for users to manually rotate the rotating part, and a wide range of amplitude adjustment can be obtained without the need for users to rotate the rotating part multiple times or at a large angle.

[0011] Furthermore, it also includes a bracket for installing the driving module and the adjusting module. The rotating member includes a rotating cover arranged on one side of the rear of the bracket. The rotating axis of the rotating cover is parallel to the reciprocating sliding trajectory of the piston.

[0012] Beneficial effect: The rotating part is designed at the tail of the driving module and the adjusting module as a whole. Then, when installed on the fascia gun, the rotating cover can also be located at the tail of the fascia gun body, and the rotation axis of the rotating cover is parallel to the reciprocating sliding trajectory of the piston. The rotating cover can be integrated into the original body of the fascia gun as a part of the tail of the fascia gun body without protruding from the shell of the fascia gun, which is more beautiful.

[0013] Furthermore, the rotation axis of the screw rod is perpendicular to the reciprocating sliding trajectory of the piston.

[0014] Beneficial effect: Since the length of the screw rod represents the displaceable distance of the adjustment block to a certain extent, in this solution, the rotation axis of the screw rod is designed along the width or height direction of the fascia gun body, so as to maximize the use of the internal space of the fascia gun body without excessively increasing the length of the fascia gun.

[0015] Furthermore, the transmission member includes a driving gear installed on the rotating cover, a driven gear installed on the end of the screw rod, a transmission rod arranged between the driving gear and the driven gear, and a first transmission gear and a second transmission gear installed at both ends of the transmission rod. The first transmission gear and the driving gear are meshed for transmission, the driven gear is an end gear or a bevel gear, and the second transmission gear and the driven gear are meshed for transmission.

[0016] Beneficial effect: The screw rod is driven to rotate by sequential transmission of the driving gear, the first transmission gear, the second transmission gear and the driven gear. If the driven gear is a face gear or a bevel gear, the transmission direction can be changed to meet the driving requirements of the screw rod.

[0017] Furthermore, the rotation axis of the screw rod is parallel to the reciprocating sliding trajectory of the piston.

[0018] Beneficial effect: In this solution, the rotation axis of the screw rod is designed to be parallel to the rotation axis of the rotating member, which makes it easier to drive the screw rod to rotate through the rotating member.

[0019] Furthermore, the transmission member comprises a driving gear mounted on the rotating cover and a driven gear mounted on the end of the screw rod, and the driving gear and the driven gear are meshed for transmission.

[0020] Beneficial effect: The driving screw is driven to rotate through the transmission of the driving gear and the driven gear, and the structure is simpler.

[0021] Furthermore, the amplitude data acquisition component includes a fixed component, on which an amplitude scale and / or amplitude gear is circumferentially provided, and the fixed component and the rotating component are coaxially rotatably connected; the indicating component includes a pointer fixed on the rotating component, and the indicating needle is used to indicate the amplitude scale or amplitude gear.

[0022] Beneficial effect: When the amplitude is adjusted by rotating the rotating part, the pointer rotates synchronously with the rotating part, and the rotation angle of the rotating part can be clearly observed. The corresponding relationship between the rotation angle of the rotating part and the change of the piston amplitude is directly displayed as an amplitude scale or amplitude gear on the fixed cover, so that the user can intuitively know the amplitude change through the indication of the pointer.

[0023] Furthermore, the amplitude data acquisition component includes a fixed component, on which an amplitude scale and / or amplitude gear and a distance sensing light corresponding to the amplitude scale or amplitude gear are provided in a circumferential direction, and the fixed component and the rotating component are coaxially rotatably connected; the indicating component includes a pointer fixed on the rotating component, and the distance sensing light is turned on and off by sensing the distance between the pointer and the rotating component.

[0024] Beneficial effect: In this solution, the pointer does not need to be exposed on the outside of the fascia gun for the user to observe and read the reading. The user can intuitively observe the rotation angle of the rotating part and the corresponding amplitude scale or amplitude gear according to the on and off of the distance sensor light.

[0025] Furthermore, the indicating member includes a detector for detecting the rotation angle of the rotating member; the amplitude data acquisition member includes a fixing member, an amplitude scale and / or an amplitude gear arranged on the fixing member, an indicator light corresponding to the amplitude scale or the amplitude gear, and a controller connected to the detector and the indicator light by signal, the signal input end of the controller is used to receive the detection signal of the detector, and the signal output end of the controller controls the opening and closing of the corresponding indicator light according to the detection signal.

[0026] Beneficial effect: In this solution, the amplitude scale or amplitude gear is displayed by the on and off of the indicator light, and the user can know the amplitude change by observing the on and off of different indicator lights.

[0027] Furthermore, the indicator includes a detector for detecting the rotation angle of the rotating part, the amplitude data acquisition part includes a display screen and a controller connected to the detector and the display screen by signals, the signal input end of the controller is used to receive the detection signal of the detector, and the signal output end of the controller is used to convert the detection signal into amplitude data and output it for display on the display screen.

[0028] Beneficial effects: In this solution, by directly displaying the amplitude data on the display screen, it is easier for the user to understand intuitively, and compared with the indication of the amplitude scale and the amplitude gear, this solution can obtain the amplitude data more accurately.

[0029] Furthermore, the driving assembly also includes a fixed plate, on which an arc-shaped groove is formed, and the rotating cover is fixed with a convex column which is inserted into the groove and slides relative to the groove.

[0030] Beneficial effect: The groove limits the convex column, limiting the rotation trajectory and rotation angle of the rotating cover, thereby controlling the maximum number of unidirectional rotations of the screw rod, that is, the maximum displacement distance of the adjustment block, to avoid damage caused by excessive rotation angle of the rotating cover.

[0031] According to the embodiment of the utility model, the utility model also adopts the following technical solution:

[0032] The fascia gun includes a shell and a massage head. The massage head extends out of the shell. A variable amplitude reciprocating mechanism for synchronously indicating and adjusting the amplitude is installed in the shell. The massage head is installed on a piston. A rotating part is arranged at the rear of the shell, and an amplitude data acquisition part is arranged outside the shell.

[0033] Compared with the prior art, the utility model has the following beneficial effects:

[0034] The fascia gun obtained by the variable amplitude reciprocating mechanism for adjusting the amplitude based on the above-mentioned synchronous indication can facilitate users to obtain amplitude data and know the amplitude changes while adjusting the amplitude, which is more convenient for users to use, meets users' various amplitude usage needs, and is easy for large-scale market promotion in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the variable amplitude reciprocating mechanism for synchronously indicating the amplitude adjustment in the first embodiment of the utility model.

[0036] Figure 2 for Figure 1 Top view of the .

[0037] Figure 3 for Figure 1 Exploded diagram.

[0038] Figure 4 for Figure 1 Schematic diagram of the rotating cover and the fixed cover.

[0039] Figure 5 for Figure 1 Side view of the rotating cover and fixed cover.

[0040] Figure 6 for Figure 4 Schematic diagram of the groove on the fixing plate.

[0041] Figure 7 It is a schematic diagram of the overall structure of the variable amplitude reciprocating mechanism for synchronously indicating the amplitude adjustment in the second embodiment of the utility model.

[0042] Figure 8 for Figure 7 Exploded diagram.

[0043] Fig. 9 It is a structural schematic diagram of an embodiment of the utility model applied to a fascia gun.

[0044] In the figure: 1. rotating cover; 2. fixed plate; 3. transmission rod; 4. second transmission gear; 5. driven gear; 6. slide groove; 7. screw rod; 8. adjusting rod; 9. output rod; 10. connecting rod; 11. crank; 12. bracket; 13. piston; 14. fixed cover; 15. driving gear; 16. first transmission gear; 17. amplitude scale; 18. amplitude gear; 19. display screen; 20. groove; 21. boss; 22. pointer; 23. indicator light; 24. shell. DETAILED DESCRIPTION

[0045] The utility model is further described in detail below with reference to the accompanying drawings, and specific implementation methods are given.

[0046] like Figure 1 , Figure 7As shown, the variable amplitude reciprocating mechanism for synchronously indicating and adjusting the amplitude includes a driving module, an adjusting module, and a bracket 12 for installing the driving module and the adjusting module. The driving module includes a crank slider mechanism composed of a crank 11, an output rod 9, a connecting rod 10, and a piston 13 hinged in sequence. In the actual design process, the crank 11 is an eccentric wheel, and the driving module also includes a driving motor for driving the crank 11 to rotate. The output shaft of the driving motor is fixedly connected to the rotation center of the eccentric wheel, and the rotation center of the eccentric wheel does not coincide with the connection center of the output rod 9 and the eccentric wheel. The crank 11 is driven to rotate by the driving motor, and the crank 11 drives the output rod 9 and the connecting rod 10 to swing, thereby realizing the reciprocating sliding of the piston 13.

[0047] The adjustment module is used to adjust the reciprocating sliding amplitude of the piston 13. The adjustment module includes an adjustment rod 8, an adjustment block, a slide groove 6 for limiting the motion trajectory of the adjustment block, and a driving assembly for driving the adjustment block to slide. The adjustment rod 8 has a swing end and an adjustment end. The swing end of the adjustment rod 8 is hinged on the output rod 9, and the adjustment end of the adjustment rod 8 is hinged on the adjustment block. The adjustment block is driven by the driving assembly to slide back and forth along the slide groove 6, thereby realizing the adjustment of the adjustment end position of the adjustment rod 8. When the adjustment end of the adjustment rod 8 changes position, it plays a role in adjusting the reciprocating swing angle of the output rod 9, so that the swing amplitude of the hinge point of the output rod 9 and the connecting rod 10 changes, and the change in the reciprocating swing distance of the projection point of the hinge point on the horizontal corresponds to the reciprocating amplitude of the piston 13, so that the amplitude can be adjusted. It should be noted that the adjustment rod 8 is an indispensable part for realizing the reciprocating swing of the output rod 9, and the change in the relative angle of the adjustment rod 8 affects the relative position of the output rod 9.

[0048] Specifically, a design mode of a driving assembly is provided in this embodiment: the driving assembly includes a screw 7, a rotating member for driving the screw 7 to rotate, and a transmission member connected between the rotating member and the screw 7, the transmission member is used to transmit the rotational power of the rotating member to the screw 7, the adjustment block is threadedly connected to the screw 7, and the reciprocating sliding of the adjustment block in the slide groove 6 is achieved by controlling the rotation of the screw 7. In the actual design process, the transmission member can be only a rod connecting the rotating member and the screw 7, and the transmission member can also be a transmission, gear (sprocket) transmission mechanism and other related mechanisms that can transmit rotational power in the prior art, as long as the screw 7 can be driven to rotate by the rotating member, and the rotation of the rotating member can be driven by electric (for example, controlled by a motor) drive, or the rotation of the rotating member can be controlled manually. When rotating manually, in order to facilitate user operation, the transmission ratio of the rotating member and the screw 7 is less than 1, so that when the user rotates the rotating member at a smaller angle, the screw 7 can be driven to rotate at a larger angle, thereby realizing a large-range displacement adjustment of the adjustment block.

[0049] In this embodiment, a design method of a rotating member is provided: the rotating member includes a rotating cover 1 provided on one side of the rear end of the bracket 12, the rotating axis of the rotating cover 1 is parallel to the reciprocating sliding trajectory of the piston 13, and when the bracket 12 is actually installed in the fascia gun body, the rotating cover 1 can be rotatably connected to the rear end of the fascia gun body as a whole, such as Fig. 9 In the state shown, as a part of the tail of the fascia gun body, it is fused to the original shell 24 of the fascia gun. In order to facilitate the control of the rotation range of the rotating cover 1, as shown in FIG. Figure 4 , Figure 6 As shown, the drive assembly also includes a fixedly arranged fixed disk 2, on which an arc-shaped groove 20 is opened, and a boss 21 is fixed on the rotating cover 1, which is inserted into the groove 20 and slides relative to the groove 20. The boss 21 is restricted by the groove 20, thereby limiting the maximum rotation angle of the rotating cover 1. During the actual assembly process, the fixed disk 2 can be directly fixed on the housing 24 of the fascia gun.

[0050] In order to facilitate the user to know the amplitude of the piston 13, the adjustment module also includes an amplitude display component, which includes an indicator for detecting or displaying the rotation angle or number of rotations of the rotating member and an amplitude data acquisition component corresponding to the indicator and the relationship between the amplitude change of the piston 13. The rotating member drives the screw 7 to rotate, and by designing the transmission ratio of the transmission member, the rotation angle or number of rotations of the screw 7 can be clearly determined by the rotation angle or number of rotations of the rotating member. For example, when the rotating member rotates 5°, the screw 7 rotates one circle. The pitch of the screw 7 is designed to be 1mm. Then, when the rotating member rotates 5°, the screw 7 can drive the adjustment block to move 1mm, and the amplitude change of the piston 13 corresponding to the displacement distance of the adjustment block is also fixed, that is, the amplitude change data of the piston 13 when the rotating member rotates 5° can be calculated. In the present solution, the rotation angle or number of rotations of the rotating part can be known by detecting or displaying the rotation angle or number of rotations of the rotating part through the indicator part, so that the user can obtain the amplitude data through the correspondence between the rotation angle or number of rotations of the rotating part and the amplitude change of the piston 13, that is, through the amplitude data acquisition part. For example, the amplitude data acquisition part can be designed as a corresponding table printed on the fascia gun body for the convenience of user reference.

[0051] In another embodiment of the present invention, a specific design method of a drive assembly is provided: Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the rotation axis of the screw 7 is perpendicular to the reciprocating sliding trajectory of the piston 13. In this embodiment, since the rotation axis of the screw 7 is perpendicular to the rotation axis of the rotating cover 1, the rotating cover 1 cannot directly drive the screw 7 to rotate, so the following design is made: the transmission member includes a driving gear 15 installed on the rotating cover 1, a driven gear 5 installed at the end of the screw 7, a transmission rod 3 arranged between the driving gear 15 and the driven gear 5, and a first transmission gear 16 and a second transmission gear 4 installed at both ends of the transmission rod 3. In the actual design process, the transmission rod 3 can be rotatably connected to the bracket 12, and the transmission rod 3 can also be rotatably connected to the fixed disk 2, as long as the transmission rod 3 is limited so that the transmission rod 3 has only rotational freedom. The rotation axis of the transmission rod 3 is parallel to the rotation axis of the driving gear 15. The driving gear 15 can be an internal gear. The first transmission gear 16 and the driving gear 15 are meshed for transmission; the driven gear 5 is an end gear or a bevel gear, and the second transmission gear 4 and the driven gear 5 are meshed for transmission. Figure 3 In the example, the driven gear 5 is an end gear, and the second transmission gear 4 is a gear meshing with the end gear. If the driven gear 5 is a bevel gear, the second transmission gear 4 also needs to be designed as a bevel gear that cooperates with it. The transmission direction is changed by the cooperation between the second transmission gear 4 and the driven gear 5. In this embodiment, the user rotates the rotating cover 1, thereby driving the driving gear 15, the first transmission gear 16, the second transmission gear 4, and the driven gear 5 to drive the screw 7 to rotate. The rotation of the screw 7 drives the adjustment block to produce displacement, thereby adjusting the amplitude.

[0052] In another embodiment of the present invention, a specific design method of a drive assembly is provided: Figure 7 , Figure 8 As shown, the rotation axis of the screw rod 7 is parallel to the reciprocating sliding trajectory of the piston 13. In this embodiment, the rotation axis of the screw rod 7 is parallel to the rotation axis of the rotating cover 1. The transmission member includes a driving gear 15 fixed on the rotating cover 1 and a driven gear 5 fixed on the end of the screw rod 7. The driving gear 15 and the driven gear 5 are meshed for transmission. Specifically, the driving gear 15 uses an internal gear, and the end of the screw rod 7 extends to the driving gear 15 (in the actual design process, the extended part of the end of the screw rod 7 can be designed as a bare rod), so that the driving gear 15 can directly drive the screw rod 7 to rotate through the driven gear 5, and the structure is simple.

[0053] In another embodiment of the present invention, a specific design method of an amplitude display component is provided: Figure 5As shown, the amplitude data acquisition component includes a fixed component, on which an amplitude scale 17 and / or an amplitude gear 18 are circumferentially arranged, and the fixed component and the rotating component are coaxially rotatably connected. Specifically, the fixed component includes a fixed cover 14 fixed on the fixed disk 2, and a through hole for the fixed cover 14 to pass through is opened in the middle of the rotating cover 1 so that the surface of the fixed cover 14 can be exposed. The indicator includes a pointer 22 fixed on the rotating part, and the indicator needle is used to indicate the amplitude scale 17 or the amplitude gear 18. In the actual design process, the amplitude scale 17 can be evenly set around the circumference of the fixed cover 14, and the amplitude data can be marked at the amplitude scale 17. The amplitude gear 18 with "low, medium, high" or other similar expressions can also be marked along the circumference of the fixed cover 14. One design can be selected according to needs, or all designs can be designed, so that the pointer 22 can indicate specific amplitude data or the amplitude gear 18 during the rotation of the rotating cover 1. When the user adjusts the amplitude, the amplitude change can be known by observing the indication of the pointer 22.

[0054] In another embodiment of the utility model, a specific design of an amplitude display component is provided: the amplitude data acquisition part includes a fixed part, and the fixed part is provided with an amplitude scale 17 and / or an amplitude gear 18 along the circumferential direction, and a distance sensing lamp corresponding to the amplitude scale 17 or the amplitude gear 18. The fixed part and the rotating part are coaxially connected. Specifically, the fixed part includes a fixed cover 14 fixed on the fixed disk 2, and a through hole for the fixed cover 14 to pass through is provided in the middle of the rotating cover 1, so that the surface of the fixed cover 14 can be exposed. The indicator part includes a pointer 22 fixed on the rotating part. In this embodiment, the pointer 22 can be arranged on the inner side of the rotating cover 1 without being exposed. The distance sensing lamp is turned on and off by sensing the distance between the pointer 22 and the distance sensing lamp. The distance sensing lamp uses an ultrasonic sensing lamp, a microwave sensing lamp, etc. in the prior art, that is, an ultrasonic sensor, a microwave sensor, etc. is built into the lamp to detect the approach or distance of the pointer 22. When the pointer 22 approaches, the lamp lights up, and when the pointer 22 moves away, the lamp goes out. The distribution of the distance sensing lamp can refer to the following. Figure 5 The distribution of the indicator lights 23 is shown.

[0055] In another embodiment of the utility model, a specific design of an amplitude display component is provided: the indicator includes a detector for detecting the rotation angle of the rotating member, and the detector can be an encoder fixed on the rotating cover 1, and the rotation angle data of the rotating cover 1 is obtained by the encoder as the rotating cover 1 rotates.

[0056] like Figure 5As shown, the amplitude data acquisition component includes a fixing component, an amplitude scale 17 and / or an amplitude gear 18 arranged on the fixing component, an indicator light 23 corresponding to the amplitude scale 17 or the amplitude gear 18, and a controller connected to the detector and the indicator light 23 by signal. The signal input end of the controller is used to receive the detection signal of the detector, and the signal output end of the controller controls the opening and closing of the corresponding indicator light 23 according to the detection signal. Specifically, the fixing component includes a fixing cover 14 fixed on the fixing plate 2, and a through hole for the fixing cover 14 to pass through is opened in the middle of the rotating cover 1 so that the surface of the fixing cover 14 can be exposed. A plurality of indicator lights 23 are installed on the surface of the fixing cover 14, and each indicator light 23 corresponds to an amplitude scale 17 data or an amplitude gear 18, as shown in FIG. Figure 5 The indicator light 23 shown is designed along the circumference of the fixed cover 14. In the actual design process, the indicator light 23 can also be arbitrarily distributed on the fixed cover 14, as long as the indicator light 23 corresponds to a specific amplitude scale 17 or amplitude gear 18. In order to facilitate observation, the color of each indicator light 23 can also be designed to be different, so that the user can directly judge the amplitude according to the color of the indicator light 23. After the controller receives the rotation angle data detection signal of the encoder for the rotating cover 1, the controller can control the opening and closing of the indicator light 23 according to the threshold value of the set multi-level detection signal. For example, the gradient threshold of the detection signal can be set to 5°, 10°, and 15° in sequence, and after each gradient threshold is reached, the controller can control a corresponding indicator light 23 to light up.

[0057] In another embodiment of the utility model, a specific design of an amplitude display component is provided: the indicator includes a detector for detecting the rotation angle of the rotating member, and the detector can be an encoder fixed on the rotating cover 1, and the rotation angle data of the rotating cover 1 is obtained by the encoder as the rotating cover 1 rotates.

[0058] like Figure 5 As shown, the amplitude data acquisition component includes a display screen 19 and a controller that is signal-connected to the detector and the display screen 19. The signal input end of the controller is used to receive the detection signal of the detector, and the signal output end of the controller is used to convert the detection signal into amplitude data and output it to the display screen 19 for display. Specifically, in the actual assembly process, the display screen 19 can be embedded in the housing 24 of the fascia gun, or the display screen 19 can be embedded in the fixed cover 14 after designing the fixed cover 14 with reference to the above-mentioned embodiment. After the controller receives the rotation angle data detection signal of the rotating cover 1 from the encoder, it calculates and converts the amplitude data of the piston 13 according to the corresponding relationship between the rotation angle of the rotating cover 1 and the amplitude of the piston 13 preset in the controller, and displays it on the display screen 19 for the user to understand intuitively.

[0059] In another embodiment of the present invention, Fig. 9As shown, a fascia gun is also disclosed, including a housing 24 and a massage head, the massage head extends out of the housing 24, and a variable amplitude reciprocating mechanism for synchronously indicating and adjusting the amplitude as described in any of the above embodiments is installed in the housing 24, and the massage head is installed on the piston 13, and the massage head is driven by the piston 13 to reciprocate and vibrate to achieve massage. The amplitude data acquisition component is arranged outside the housing 24. Specifically, the purpose of designing the amplitude data acquisition component outside the housing 24 is to facilitate the user to read the data. If the controller and other intermediate structures included in the amplitude data acquisition component cannot intuitively allow the user to read the data, this part of the structure can be arranged inside or outside the housing 24.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A variable amplitude reciprocating mechanism for synchronously indicating and adjusting amplitude, comprising a driving module and an adjusting module, wherein the driving module comprises a crank slider mechanism formed by hingedly connecting a crank, an output rod, a connecting rod and a piston in sequence, the adjusting module is used to adjust the reciprocating sliding amplitude of the piston, the adjusting module comprises an adjusting rod, an adjusting block and a driving assembly for driving the adjusting block to slide, the adjusting rod has a swing end and an adjusting end, the swing end of the adjusting rod is hinged on the output rod, the adjusting end of the adjusting rod is hinged on the adjusting block, the driving assembly comprises a screw rod, and the adjusting block is threadedly connected to the screw rod; the characteristics are as follows: The driving assembly also includes a rotating part for driving the screw to rotate and a transmission part connected between the rotating part and the screw, the transmission part is used to transmit the rotational power of the rotating part to the screw; the adjustment module also includes an amplitude display assembly, the amplitude display assembly includes an indicator for detecting or displaying the rotation angle or number of rotations of the rotating part and an amplitude data acquisition part corresponding to the relationship between the indicator and the piston amplitude change.

2. The variable amplitude reciprocating mechanism for synchronously indicating and adjusting amplitude according to claim 1, characterized in that: The transmission ratio of the rotating member and the screw rod is less than 1.

3. The variable amplitude reciprocating mechanism for synchronous indication and amplitude adjustment according to claim 1, characterized in that: It also includes a bracket for installing a driving module and an adjusting module. The rotating member includes a rotating cover arranged on one side of the rear of the bracket. The rotating axis of the rotating cover is parallel to the reciprocating sliding trajectory of the piston.

4. The variable amplitude reciprocating mechanism for synchronously indicating and adjusting amplitude according to claim 3 is characterized in that: The rotation axis of the screw rod is perpendicular to the reciprocating sliding trajectory of the piston.

5. The variable amplitude reciprocating mechanism for synchronously indicating and adjusting amplitude according to claim 4, characterized in that: The transmission member includes a driving gear installed on the rotating cover, a driven gear installed at the end of the screw rod, a transmission rod arranged between the driving gear and the driven gear, and a first transmission gear and a second transmission gear installed at both ends of the transmission rod. The first transmission gear and the driving gear are meshed for transmission, the driven gear is an end gear or a bevel gear, and the second transmission gear and the driven gear are meshed for transmission.

6. The variable amplitude reciprocating mechanism for synchronously indicating and adjusting amplitude according to claim 3, characterized in that: The rotation axis of the screw rod is parallel to the reciprocating sliding trajectory of the piston.

7. The variable amplitude reciprocating mechanism for synchronously indicating and adjusting amplitude according to claim 6, characterized in that: The transmission member comprises a driving gear installed on the rotating cover and a driven gear installed on the end of the screw rod, and the driving gear and the driven gear are meshed for transmission.

8. The variable amplitude reciprocating mechanism for synchronously indicating and adjusting amplitude according to claim 1, characterized in that: The amplitude data acquisition component includes a fixed component, on which an amplitude scale and / or amplitude gear is circumferentially arranged, and the fixed component and the rotating component are coaxially rotatably connected; the indicating component includes a pointer fixed on the rotating component, and the indicating needle is used to indicate the amplitude scale or amplitude gear.

9. The variable amplitude reciprocating mechanism for synchronously indicating and adjusting amplitude according to claim 1, characterized in that: The amplitude data acquisition component includes a fixed component, on which an amplitude scale and / or amplitude gear and a distance sensing light corresponding to the amplitude scale or amplitude gear are arranged in a circumferential direction, and the fixed component and the rotating component are coaxially rotatably connected; the indicating component includes a pointer fixed on the rotating component, and the distance sensing light is turned on and off by sensing the distance between the pointer and the rotating component.

10. The variable amplitude reciprocating mechanism for synchronous indication and amplitude adjustment according to claim 1, characterized in that: The indicating member includes a detector for detecting the rotation angle of the rotating member; the amplitude data acquisition member includes a fixing member, an amplitude scale and / or an amplitude gear arranged on the fixing member, an indicator light corresponding to the amplitude scale or the amplitude gear, and a controller connected to the detector and the indicator light by signals, wherein the signal input end of the controller is used to receive the detection signal of the detector, and the signal output end of the controller controls the opening and closing of the corresponding indicator light according to the detection signal.

11. The variable amplitude reciprocating mechanism for synchronous indication and amplitude adjustment according to claim 1, characterized in that: The indicating member includes a detector for detecting the rotation angle of the rotating member, and the amplitude data acquisition member includes a display screen and a controller connected to the detector and the display screen by signals. The signal input end of the controller is used to receive the detection signal of the detector, and the signal output end of the controller is used to convert the detection signal into amplitude data and output it for display on the display screen.

12. The variable amplitude reciprocating mechanism for synchronous indication and amplitude adjustment according to claim 3, characterized in that: The driving assembly also includes a fixed plate, on which an arc-shaped groove is formed, and the rotating cover is fixed with a convex column which is inserted into the groove and slides relative to the groove.

13. A fascia gun, comprising a housing and a massage head, wherein the massage head extends out of the housing, and wherein: The shell is equipped with a variable amplitude reciprocating mechanism for synchronously indicating and adjusting the amplitude as described in any one of claims 1 to 12, and the massage head is installed on the piston; the rotating part is arranged at the rear of the shell, and the amplitude data acquisition part is arranged outside the shell.

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