Buckle type massage head connecting structure and fascia gun

Abstract

The utility model discloses a buckle type massage head connecting structure, which comprises a massage head, a connecting piece and a connecting piece, the massage head comprises a massage part and a piston rod connected to the massage part, and the piston rod is provided with at least one positioning pin arranged along the circumferential direction; a piston hole is formed in the piston sleeve, a rotating clamping groove matched with the positioning pin is formed in the piston sleeve, the rotating clamping groove is provided with an inlet end and a limiting end, and when the piston rod is inserted into the piston hole and rotates in the first direction, the positioning pin rotates from the inlet end to the limiting end so as to limit the massage head to be separated from the piston sleeve. And in the high-frequency reciprocating motion process, falling is prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of fascia guns, in particular to a snap - type massage head connection structure and a fascia gun. Background Art

[0002] A fascia gun, also known as a massage gun or vibrating gun, is a high - frequency vibration massager commonly used for muscle rehabilitation and relieving muscle pain. Its working principle is to transmit energy to muscle and fascia tissues through high - speed vibration and impact, promoting blood circulation, relieving muscle tension and pain. A fascia gun usually consists of a handheld device and multiple massage heads with different shapes and hardnesses. Users can choose a suitable massage head to massage different parts and muscles. When in use, the user only needs to align the massage head with the part to be relaxed, start the device, and let the vibration of the fascia gun help relax the tense muscles and fascia.

[0003] In the prior art, the massage head and the piston sleeve arranged in the fascia gun body are generally connected by the cooperation of a plug - in rod and a hole, so that the massage head is inserted into the piston sleeve, and then a silicone ring is used to increase the friction force to fixedly connect the massage head and the piston sleeve. However, this connection structure relying only on the silicone ring is prone to detachment during the high - frequency reciprocating movement of the massage head, especially after long - term use when the silicone ring ages, the massage head is more likely to fall off.

[0004] In the invention with the application number: US11567007 and the publication number: US20070150004A1, a chiropractic adjustment instrument is disclosed, including a housing, a thrust nose piece, an impact head, a pre - loaded switch plunger, a damping spring, a solenoid with a core, a pre - loaded spring, a recoil spring, and an electronic pulse system. It still relies only on the silicone ring for fixation, and there is a problem that the massage head is prone to fall off during the high - frequency reciprocating movement of the massage head. Content of the Utility Model

[0005] Based on this, in view of the above problems, the utility model provides a snap - type massage head connection structure and a fascia gun, which solve the problem that the massage head of the current fascia gun is prone to fall off during the high - frequency reciprocating movement.

[0006] The technical solution of the utility model is as follows:

[0007] A snap - type massage head connection structure, comprising:

[0008] A massage head, which includes a massage part and a piston rod connected to the massage part. At least one positioning pin is arranged on the piston rod along the circumferential direction;

[0009] A piston sleeve, which is provided with a piston hole, and a rotating card slot matching with the positioning pin. The rotating card slot has an entrance end and a limiting end;

[0010] When the piston rod is inserted into the piston hole and rotates in the first direction, the positioning pin rotates from the entry end to the limiting end to limit the separation of the massage head relative to the piston sleeve.

[0011] Preferably, a silica gel snap ring is sleeved on one end of the piston rod. The silica gel snap ring is arranged at one end where the piston rod is connected to the massage part, and the positioning pin extends out of the silica gel snap ring;

[0012] One end of the silica gel snap ring inserted into the piston sleeve is in interference fit with the piston sleeve.

[0013] Preferably, a boss is provided at the end of the piston rod extending into the piston hole. The boss is eccentrically arranged relative to the axis of the piston rod. A touch switch is provided on the piston sleeve. When the positioning pin rotates from the entry end of the rotation slot to the limiting end, the boss contacts the touch switch.

[0014] Preferably, a magnetic part is provided at the end of the piston rod inserted into the piston hole. The magnetic part is eccentrically arranged relative to the axis of the piston rod. A magnetic sensor is provided on the side wall of the fascia gun main body or on the side wall of the piston sleeve. The magnetic sensor is used to detect the magnetic field direction and magnetic field intensity of the magnetic part.

[0015] Preferably, the magnetic part is the magnetized part of the piston rod.

[0016] Preferably, the magnetic part is a magnet.

[0017] Preferably, an induction groove for installing the magnetic part is provided on the piston rod.

[0018] A fascia gun includes a fascia gun main body and a driving mechanism arranged in the fascia gun main body, and also includes the above-mentioned snap-type massage head connection structure. The piston sleeve is connected to the driving mechanism, and the massage head is connected to the piston sleeve.

[0019] A fascia gun includes the above-mentioned snap-type massage head connection structure and a fascia gun main body.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] Compared with the traditional massage head connection structure, the present utility model sets a pair of positioning pins on the piston rod of the massage head, and at the same time sets a rotation slot on the piston sleeve that cooperates with the positioning pins. During installation, one end of the piston rod corresponds to the piston hole of the piston sleeve, and the pair of positioning pins correspond to the entry end of the rotation slot. Then, the piston rod is inserted into the piston hole, and the positioning pins are inserted into the entry end of the rotation slot. Then, by rotating the massage head in the first direction, the positioning pins rotate from the entry end to the limiting end, so that the massage head and the piston sleeve can be fixed more stably, achieving the purpose of restricting the separation of the massage head and the piston sleeve;

[0022] The problem that the massage head of the current fascia gun is prone to fall off during the high-frequency reciprocating motion is solved;

[0023] In addition, when the massage head is installed on the piston sleeve, the massage head needs to be rotated to achieve limit, which can avoid the safety hazard of being disassembled during the reciprocating movement of the piston sleeve to a certain extent. The limit end is used to limit the positioning pin to avoid separation. Brief Description of the Drawings

[0024] Figure 1 is a schematic structural view of a snap-type massage head connection structure described in an embodiment of the present invention;

[0025] Figure 2 is a schematic structural view of the massage head described in an embodiment of the present invention;

[0026] Figure 3 is a schematic structural view of the piston sleeve described in an embodiment of the present invention;

[0027] Figure 4 is a schematic position structure diagram of the boss, touch switch, magnetic part and magnetic sensor described in an embodiment of the present invention Figure 1 ;

[0028] Figure 5 is a schematic position structure diagram of the boss, touch switch, magnetic part and magnetic sensor described in an embodiment of the present invention Figure 2 ;

[0029] Figure 6 is a schematic sectional structure diagram when a snap-type massage head connection structure described in an embodiment of the present invention is installed Figure 1 ;

[0030] Figure 7 is a schematic sectional structure diagram when a snap-type massage head connection structure described in an embodiment of the present invention is installed Figure 2 ;

[0031] Description of the Reference Numerals:

[0032] 10 - massage head, 100 - massage part, 101 - piston rod, 102 - silicone snap ring, 103 - positioning pin, 104 - boss, 105 - induction groove, 20 - piston sleeve, 200 - piston hole, 201 - rotation card slot, 202 - entry end, 203 - limit end, 30 - touch switch, 40 - magnetic part, 41 - magnetic sensor. Detailed Embodiments

[0033] The embodiments of the present invention will be described in detail below with reference to the drawings.

[0034] Embodiment 1:

[0035] As Figures 1 to 3 shown, to solve the above problems, this embodiment discloses a snap - type massage head connection structure, including:

[0036] A massage head 10, the massage head 10 includes a massage part 100 and a piston rod 101 connected to the massage part 100. At least one positioning pin 103 arranged circumferentially is provided on the piston rod 101;

[0037] A piston sleeve 20, a piston hole 200 is provided on the piston sleeve 20, and a rotary clamping groove 201 matched with the positioning pin 103 is provided on the piston sleeve 20. The rotary clamping groove 201 has an inlet end 202 and a limiting end 203;

[0038] When the piston rod 101 is inserted into the piston hole 200 and rotates in the first direction, the positioning pin 103 rotates from the inlet end 202 to the limiting end 203 to limit the separation of the massage head 10 relative to the piston sleeve 20.

[0039] Compared with the traditional massage head 10 connection structure, in this utility model, by providing a pair of positioning pins 103 on the piston rod 101 of the massage head 10 and a rotary clamping groove 201 matched with the positioning pins 103 on the piston sleeve 20, during installation, one end of the piston rod 101 corresponds to the piston hole 200 of the piston sleeve 20, and the pair of positioning pins 103 correspond to the inlet end 202 of the rotary clamping groove 201. Then the piston rod 101 is inserted into the piston hole 200, and the positioning pins 103 are inserted into the inlet end 202 of the rotary clamping groove 201. Then by rotating the massage head 10 in the first direction, the positioning pins 103 rotate from the inlet end 202 to the limiting end 203, so that the massage head 10 and the piston sleeve 20 can be fixed more stably, achieving the purpose of restricting the separation of the massage head 10 and the piston sleeve 20. It solves the problem that the massage head 10 of the current fascia gun is prone to fall off during the high - frequency reciprocating motion.

[0040] Among them, the first direction refers to the direction in which the positioning pin 103 rotates from the inlet end 202 of the rotary clamping groove 201 to the limiting end 203; the second direction refers to the direction in which the positioning pin 103 rotates from the limiting end 203 of the rotary clamping groove 201 to the inlet end 202.

[0041] Preferably, a silica gel snap ring 102 is sleeved on one end of the piston rod 101. The silica gel snap ring 102 is arranged at one end of the piston rod 101 connected to the massage part 100, and the positioning pin 103 extends out of the silica gel snap ring 102;

[0042] One end of the silica gel snap ring 102 inserted into the piston sleeve 20 is in interference fit with the piston sleeve 20.

[0043] One end of the silica gel snap ring 102 inserted into the piston sleeve 20 is in interference fit with the piston sleeve 20.

[0044] The silicone snap ring 102 can achieve shock absorption between the massage head 10 and the piston sleeve 20 after insertion. At the same time, the interference fit can also increase the friction between the piston rod 101 and the inner side wall of the piston hole 200, thereby connecting the massage head 10 and the piston sleeve 20 more stably. Finally, the anti-detachment effect of the connection between the piston rod 101 and the piston sleeve 20 is achieved by combining the interference fit of the silicone snap ring 102 on the basis of the limiting fit between the positioning pin 103 and the limiting end 203, effectively avoiding the risk of the massage head 10 separating from the piston sleeve 20.

[0045] Embodiment 2:

[0046] As Figures 2 to 4 shown, in order to prevent the risk of detachment and potential safety hazards caused by the loosening of the massage head 10 during use, this embodiment is modified on the basis of the above Embodiment 1. The difference from the above Embodiment 1 is that a boss 104 is provided at the end of the piston rod 101 extending into the piston hole 200. The boss 104 is eccentrically arranged relative to the axis of the piston rod 101, and a touch switch 30 is provided on the piston sleeve 20. When the positioning pin 103 rotates from the entry end 202 of the rotation slot 201 to the limiting end 203, the boss 104 contacts the touch switch 30.

[0047] That is, the position where the boss 104 touches the touch switch 30 exactly corresponds to the position where the positioning pin 103 rotates to the limiting end 203. The limiting state is corresponding to the triggered state of the touch switch 30, and at this time, the drive mechanism (motor) in the fascia gun can start running, avoiding the insertion of the massage head 10 when the piston sleeve 20 reciprocates. Of course, when the massage head 10 rotates relative to the piston 20 and the touch switch 30 is not triggered, the drive mechanism (motor) stops running.

[0048] Specifically, the touch switch 30 is arranged at the inner bottom of the piston hole 200 on the piston sleeve 20 and is arranged in cooperation with the limiting end 203 of the rotation slot 201, that is, the position of the touch switch 30 is coordinated with the position of the rotation slot 201. When the positioning pin 103 rotates from the entry end 202 of the rotation slot 201 to the limiting end 203, one end of the boss 104 can contact the touch switch 30. The purpose is to make the boss 104 contact the touch switch 30 and close the touch switch 30 before the motor can be started. During the operation of the motor, if the boss 104 separates from the touch switch 30, the motor stops running. This can be achieved by simply connecting the touch switch 30 to the control circuit in the fascia gun.

[0049] The touch switch 30 can adopt a touch switch 30 in the prior art that can achieve the functions of the present invention.

[0050] Embodiment 3:

[0051] As shown in Figure 4 the figure, Figure 4 in this magnetic sensor 41 is located on the side wall of the piston sleeve 20. This embodiment is modified on the basis of the above-mentioned Embodiment 1. The difference from the above-mentioned Embodiment 1 is that a magnetic member 40 is provided at one end of the piston rod 101 inserted into the piston hole 200. The magnetic member 40 is eccentrically arranged relative to the axis of the piston rod 101. A magnetic sensor 41 is provided on the side wall of the piston sleeve 20. The magnetic sensor 41 is used to detect the magnetic field direction and magnetic field strength of the magnetic member 40. By using the change in the magnetic field direction detected by the magnetic sensor 41, the angular change of the piston rod 101 can be obtained, and the change in the detected magnetic field strength can be used to obtain the displacement change of the piston rod 101, so as to judge the connection state of the piston rod 101 relative to the piston sleeve 20.

[0052] Embodiment 4:

[0053] As shown in Figure 4 the figure, this embodiment is modified on the basis of the above-mentioned Embodiment 2. The difference from the above-mentioned Embodiment 2 is that a magnetic member 40 is provided at one end of the piston rod 101 inserted into the piston hole 200. The magnetic member 40 is eccentrically arranged relative to the axis of the piston rod 101. A magnetic sensor 41 is provided on the side wall of the piston sleeve 20. The magnetic sensor 41 is used to detect the magnetic field direction and magnetic field strength of the magnetic member 40. The reason for eccentrically arranging the magnetic member 40 relative to the piston rod 101 is to enable the magnetic sensor 41 to detect both the angular change and displacement change generated by the magnetic member 40 following the piston rod 101. At the beginning of the start of the driving mechanism (motor), when it is detected that the magnetic member 40 is within the preset range, it can be started; during the start-up process, once the piston rod 101 generates an angular change, the driving mechanism (motor) is stopped, that is, it must be ensured that the piston rod 101 can be inserted into the piston hole 200 or the piston rod 101 can be rotated relative to the piston hole 200 only in the stopped state.

[0054] In the above-mentioned Embodiment 3 and Embodiment 4, the first thing that can be detected is the angular change. At this time, the positioning pin 103 has not yet rotated out of the limiting end 203. When the angular change signal is detected at this time, the driving mechanism (motor) stops running. When the piston rod 101 is further disassembled from the piston hole 200, the piston sleeve 20 is always in a stopped state, and angular detection is given priority in the above-mentioned scheme. There may not be a displacement change during rotation; therefore, eccentrically arranging the magnetic member 40 relative to the axis of the piston rod 101 is the optimal choice

[0055] Embodiment 5:

[0056] As shown in Figure 5 the figure, Figure 5The middle magnetic sensor 41 is located on the side wall of the fascia gun body. This embodiment is modified based on the above-mentioned Embodiment 1. The difference from the above-mentioned Embodiment 1 is that one end of the piston rod 101 inserted into the piston hole 200 is provided with a magnetic member 40, and the magnetic member 40 is eccentrically arranged relative to the axis of the piston rod 101. A magnetic sensor 41 is provided on the side wall of the fascia gun body, and the magnetic sensor 41 is used to detect the magnetic field direction or magnetic field strength of the magnetic member 40. Specifically, after the magnetic sensor 41 detects the state of the magnetic member 40, the control of the drive mechanism (motor) is the same as that in Embodiment 4.

[0057] Embodiment 6:

[0058] As Figure 5 shown, this embodiment is modified based on the above-mentioned Embodiment 2. The difference from the above-mentioned Embodiment 2 is that one end of the piston rod 101 inserted into the piston hole 200 is provided with a magnetic member 40, and the magnetic member 40 is eccentrically arranged relative to the axis of the piston rod 101. A magnetic sensor 41 is provided on the side wall of the fascia gun body, and the magnetic sensor 41 is used to detect the magnetic field direction or magnetic field strength of the magnetic member 40.

[0059] The position of the magnetic sensor 41 on the side wall of the fascia gun body is the position where the magnetic sensor 41 on the side wall of the piston sleeve 20 extends outward to the side wall of the fascia gun body.

[0060] Therefore, in the above-mentioned embodiments, regardless of whether the magnetic sensor 41 is installed on the fascia gun body or on the piston sleeve, as long as it is combined with the setting of the magnetic member, it can detect the corresponding changes in magnetic field strength and magnetic field direction.

[0061] In the above-mentioned Embodiments 3 to 6, as a further preference, the magnetic member 40 can be the magnetized part of the piston rod 101, and the magnetic member 40 can also be a magnet.

[0062] Preferably, when the magnetic member 40 is a magnet, an induction groove 105 for installing the magnetic member 40 is provided on the piston rod 101, and the induction groove 105 is eccentrically arranged relative to the axis of the piston rod 101.

[0063] Preferably, the magnetic sensor 41 can adopt a magnetic sensor in the prior art.

[0064] The magnetic sensor 41 needs to be connected to the controller in the fascia gun. The magnetic sensor 41 can detect the magnetic field direction or magnetic field strength of the magnet and generate a corresponding signal to be sent to the controller. When detecting the magnetic field direction, that is, when the corresponding angular change between the piston rod 101 and the piston sleeve 20 exceeds a predetermined angular range, or the detected displacement range exceeds a preset displacement range, the controller will control the start of the motor.

[0065] During use, when the massage head 10 is correctly installed, that is, when the positioning pin 103 is correctly engaged in the limiting end 203 of the rotating slot 201, the magnetic sensor 41 detects the current position of the magnetic member 40 as a reference signal. Since the massage head 10 makes a reciprocating motion, the signal generated by the displacement change is a range value, and the signal generated by the angle change can also be a range value (such as the angle range when the positioning pin 103 completely disengages from the limiting end 203), which is preset as the range of the electrical signal value when correctly installed as the detection standard value range;

[0066] When the massage head 10 generates a displacement change relative to the piston sleeve 20 and the magnetic member 40 deviates from the preset position range, it indicates that the massage head 10 is not installed in place or there is a risk of detachment. At this time, the drive mechanism (motor) is in a stopped state. Therefore, when the electrical signal transmitted by the magnetic sensor 41 is not within the preset range of electrical signal values, the controller in the fascia gun controls the motor to shut down.

[0067] In addition, since the magnetic sensor 41 can detect the magnetic field direction of the magnetic member 40, when the motor is controlled by the controller to start, the detected magnetic field direction meets the preset angle, and during the operation of the motor, if an angle change occurs, the controller stops the motor operation.

[0068] That is, only when it can be detected that the massage head 10 and the piston sleeve 20 are correctly installed can the motor operate to protect the user. Especially during the operation of the motor, it can avoid the dangerous behavior of the user installing or disassembling the massage head 10.

[0069] Embodiment 7:

[0070] A fascia gun includes a fascia gun main body and a drive mechanism provided in the fascia gun main body, and also includes a snap - type massage head connection structure described in Embodiment 1 above. The piston sleeve 20 is connected to the drive mechanism and is driven by the drive mechanism to move reciprocally, and the massage head 10 is connected to the piston sleeve 20, thereby realizing the reciprocating movement of the massage head 10 to perform massage strikes on the user, and the massage head 10 cannot be disassembled from the piston sleeve 20 during the operation of the drive mechanism.

[0071] The fascia gun described in this embodiment solves the problem that the massage head 10 of the current fascia gun is prone to fall off during the high - frequency reciprocating motion.

[0072] Embodiment 8:

[0073] A fascia gun, comprising a fascia gun main body and a driving mechanism disposed within the fascia gun main body, further comprising a snap-type massage head connection structure as described in Embodiment 2 above. The piston sleeve 20 is connected to the driving mechanism and is driven by the driving mechanism to reciprocate, while the massage head 10 is connected to the piston sleeve 20, thereby realizing the reciprocating movement of the massage head 10 to perform massage strikes on the user, and the massage head 10 cannot be detached from the piston sleeve 20 during the operation of the driving mechanism.

[0074] In the fascia gun described in this embodiment, it is possible to detect whether the massage head 10 is correctly installed through the touch switch 30, and control the start and stop of the motor according to the feedback of the touch switch 30, which not only solves the problem that the massage head 10 of the current fascia gun is prone to fall off during the high-frequency reciprocating movement, but also solves the problem of the risk of detachment and potential safety hazards caused by the looseness of the massage head 10.

[0075] Embodiment 9:

[0076] As Figure 6 shown, a fascia gun, comprising a fascia gun main body and a driving mechanism disposed within the fascia gun main body, further comprising a snap-type massage head connection structure as described in Embodiment 3 or 5 above. Among them, the piston sleeve 20 is connected to the driving mechanism and is driven by the driving mechanism to reciprocate, while the massage head 10 is connected to the piston sleeve 20, thereby realizing the reciprocating movement of the massage head 10 to perform massage strikes on the user, and the massage head 10 cannot be detached from the piston sleeve 20 during the operation of the driving mechanism, and the driving mechanism will not start when the massage head 10 is not properly installed on the piston sleeve 20, which ensures the safety of the user during use.

[0077] In the fascia gun described in this embodiment, it is possible to detect whether the massage head 10 is correctly installed through the cooperation of the magnetic member 40 and the magnetic sensor 41, and control the start and stop of the motor according to the feedback of the magnetic sensor 41, which not only solves the problem that the massage head 10 of the current fascia gun is prone to fall off during the high-frequency reciprocating movement, but also solves the problem of the risk of detachment and potential safety hazards caused by the looseness of the massage head 10.

[0078] Embodiment 10:

[0079] As Figure 7 shown, a fascia gun, comprising a fascia gun main body and a driving mechanism disposed within the fascia gun main body, further comprising a snap-type massage head connection structure as described in Embodiment 4 or 6 above. The piston sleeve 20 is connected to the driving mechanism and is driven by the driving mechanism to reciprocate, while the massage head 10 is connected to the piston sleeve 20, thereby realizing the reciprocating movement of the massage head 10 to perform massage strikes on the user, and the massage head 10 cannot be detached from the piston sleeve 20 during the operation of the driving mechanism.

[0080] In this embodiment, the fascia gun can detect whether the massage head 10 is correctly installed in two ways, namely, by triggering the switch 30 and by the cooperation of the magnetic member 40 and the magnetic sensor 41, and control the start and stop of the motor according to the feedback of the trigger switch 30 or the magnetic sensor 41. This not only solves the problem that the massage head 10 of the current fascia gun is prone to fall off during the high-frequency reciprocating motion, but also solves the problem of the risk of falling off and potential safety hazards caused by the looseness of the massage head 10.

[0081] The working principle of the present utility model:

[0082] Compared with the traditional connection structure of the massage head 10, in the present utility model, a pair of positioning pins 103 are provided on the piston rod 101 of the massage head 10, and at the same time, a rotating slot 201 matching the positioning pins 103 is provided on the piston sleeve 20. During installation, one end of the piston rod 101 is aligned with the piston hole 200 of the piston sleeve 20, and the pair of positioning pins 103 are aligned with the entry end 202 of the rotating slot 201. Then, the piston rod 101 is inserted into the piston hole 200, and the positioning pins 103 are inserted into the entry end 202 of the rotating slot 201. Then, by rotating the massage head 10 in the first direction, the positioning pins 103 are rotated from the entry end 202 to the limiting end 203, so that the massage head 10 and the piston sleeve 20 can be fixed more stably, achieving the purpose of restricting the separation of the massage head 10 and the piston sleeve 20.

[0083] The above-described embodiments only represent the specific implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A snap-on massage head connection structure, characterized in that: include: A massage head (10), the massage head (10) comprising a massage portion (100) and a piston rod (101) connected to the massage portion (100), the piston rod (101) being provided with at least one positioning pin (103) arranged in a circumferential direction; A piston sleeve (20), wherein the piston sleeve (20) is provided with a piston hole (200), and the piston sleeve (20) is provided with a rotation slot (201) that cooperates with the positioning pin (103), and the rotation slot (201) has an entry end (202) and a limit end (203); When the piston rod (101) is inserted into the piston hole (200) and rotates in a first direction, the positioning pin (103) rotates from the entry end (202) to the limiting end (203) to limit the separation of the massage head (10) relative to the piston sleeve (20).

2. The snap-on massage head connection structure according to claim 1, characterized in that: One end of the piston rod (101) is sleeved with a silicone clamp ring (102), the silicone clamp ring (102) is arranged at the end of the piston rod (101) connected to the massage part (100), and the positioning pin (103) extends out of the silicone clamp ring (102); One end of the silicone clamp ring (102) is inserted into the piston sleeve (20) and has an interference fit with the piston sleeve (20).

3. The snap-on massage head connection structure according to claim 1, characterized in that: A boss (104) is provided at the end of the piston rod (101) extending into the piston hole (200). The boss (104) is eccentrically arranged relative to the axis of the piston rod (101). A touch switch (30) is provided on the piston sleeve (20). When the positioning pin (103) rotates from the entry end (202) of the rotating slot (201) to the limit end (203), the boss (104) contacts the touch switch (30).

4. The snap-on massage head connection structure according to claim 1, characterized in that: A magnetic component (40) is provided at the end of the piston rod (101) inserted into the piston hole (200). The magnetic component (40) is eccentrically arranged relative to the axis of the piston rod (101). A magnetic sensor (41) is provided on the side wall of the fascia gun body or the side wall of the piston sleeve (20). The magnetic sensor (41) is used to detect the magnetic field direction and magnetic field strength of the magnetic component (40).

5. The buckle-type massage head connection structure according to claim 4, characterized in that: The magnetic member (40) is a magnetized portion of the piston rod (101).

6. The buckle-type massage head connection structure according to claim 4, characterized in that: The magnetic member (40) is a magnet.

7. The buckle-type massage head connection structure according to claim 6, characterized in that: The piston rod (101) is provided with a sensing groove (105) for mounting the magnetic member (40).

8. A fascia gun, comprising a fascia gun body and a driving mechanism disposed in the fascia gun body, characterized in that: It also comprises a snap-on massage head connection structure as claimed in any one of claims 1 to 7, wherein the piston sleeve (20) is connected to the driving mechanism, and the massage head (10) is connected to the piston sleeve (20).

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