Threaded massage head connecting structure and fascia gun

Abstract

The utility model discloses a thread type massage head connecting structure and fascia gun relates to fascia gun technical field, including massage head and piston bush, massage head includes massage portion and is connected to the piston rod of massage portion, the piston rod is equipped with annular fixed groove and screwing portion, annular fixed groove is provided in the piston rod close to massage portion end, screwing portion is provided on the piston rod, and the screwing portion is provided with the annular fixed groove. A silica gel fixing ring is arranged in the annular fixing groove, and threads extending towards the outer side are arranged on the screwing part. The piston sleeve is provided with a piston hole, and the inner side wall of the piston hole is provided with taps matched with the threads in a threaded mode. The silica gel fixing ring comprises an insertion section and a limiting ring, when the piston rod is matched and screwed with the tapping thread through the thread, the limiting ring is pressed by the end of the piston sleeve, the insertion section is in damping connection with the piston hole, and the problem that a massage head of an existing fascia gun is prone to falling off in the high-frequency reciprocating motion process is solved.

Description

Technical Field

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

[0002] A fascia gun, also known as a massage gun or vibrating gun, is a high-frequency vibrating 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 rod and a hole, so that the massage head is inserted into the piston sleeve, and then a silicone rubber ring is used to increase the friction force to fixedly connect the massage head and the piston sleeve. However, this connection structure fixed only by the silicone rubber ring is prone to falling off during the high-frequency reciprocating movement of the massage head, especially after the silicone rubber ring ages after long-term use, 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 preloading switch plunger, a damping spring, a solenoid with a core, a preloading spring, a recoil spring and an electronic pulse system. It still relies only on the silicone rubber ring for fixation, and there is a problem that the massage head is prone to falling 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 threaded massage head connection structure and a fascia gun, which solve the problem that the massage head of the current fascia gun is prone to falling off during the high-frequency reciprocating movement.

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

[0007] A threaded massage head connection structure includes a massage head and a piston sleeve. The massage head includes a massage part and a piston rod connected to the massage part. An annular fixing groove and a tightening part are arranged on the piston rod. The annular fixing groove is arranged at one end of the piston rod close to the massage part. A silicone rubber fixing ring is arranged in the annular fixing groove. A thread extending outward is arranged on the tightening part;

[0008] A tapping thread that is in threaded cooperation with the thread is arranged on the inner side wall of the piston hole of the piston sleeve;

[0009] The silicone fixing ring includes an insertion section and a limiting ring. When the piston rod is screwed tightly through the screw thread and the tapped thread, the end of the piston sleeve presses against the limiting ring, and the insertion section is damping-connected to the piston hole.

[0010] Preferably, it further includes a touch switch, which is arranged at the end of the piston rod inserted into the piston hole. When the piston rod is tightly connected to the piston hole, the touch switch is triggered.

[0011] Preferably, it further includes a touch switch, which is arranged at the bottom of the piston hole. When the piston rod is tightly connected to the piston hole, the touch switch is triggered.

[0012] Preferably, one end of the piston rod inserted into the piston hole is provided with a magnetic part, and a magnetic sensor is arranged on the side wall of the fascia gun main body or the side wall of the piston sleeve. The magnetic sensor is used to detect the magnetic field strength of the magnetic part.

[0013] Preferably, the magnetic part is the magnetized part of the piston rod.

[0014] Preferably, the magnetic part is a magnet.

[0015] Preferably, the piston rod is provided with an induction groove for installing the magnetic part.

[0016] Preferably, the magnetic part is eccentrically arranged relative to the axis of the piston rod, and the magnetic sensor is used to detect the magnetic field strength and magnetic field direction of the magnetic part.

[0017] 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 threaded massage head connection structure. The piston sleeve is connected to the driving mechanism, and the massage head is connected to the piston sleeve.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] Compared with the traditional massage head connection structure, the present utility model sets a screw thread on the piston rod and a tapped thread on the inner side wall of the piston hole, and at the same time makes the screw thread and the tapped thread cooperate to form a threaded connection, so as to complete the fixation of the massage head and the piston sleeve. That is, when the massage head needs to be connected to the piston sleeve, the massage head needs to be rotated, and the threaded connection is used to realize the tight connection between the massage head and the piston sleeve;

[0020] Meanwhile, in order to further solve the problem that the threaded connection may become loose during high-frequency vibration, a silicone fixing ring is provided to increase the friction between the piston rod and the piston hole when the piston rod is connected to the piston hole. After the threaded connection between the piston rod and the piston hole is in place, the limiting ring of the silicone fixing ring is pressed by the end of the piston sleeve to achieve vibration reduction. At the same time, the damping connection between the insertion section of the silicone fixing ring and the piston hole further plays a role in preventing the threaded connection from loosening. Thus, it is ensured that the threaded connection state will not become loose during high-frequency reciprocating motion;

[0021] The problem that the massage head of the current fascia gun is prone to fall off during high-frequency reciprocating motion is solved;

[0022] In addition, when the massage head is installed on the piston sleeve, it needs to be rotated several circles to achieve fastening, and the operation can only be carried out when the piston sleeve is in a stopped state. Similarly, when the massage head is disassembled during the running state, it also needs to be rotated several circles and the operation can only be carried out when the piston sleeve is in a stopped state. Thus, the rotation method is used to ensure that the user can only operate when the piston sleeve is not moving, which protects the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a threaded massage head connection structure described in an embodiment of the present invention;

[0024] Figure 2 is a schematic structural diagram of the massage head described in an embodiment of the present invention Figure 1 ;

[0025] Figure 3 is a schematic structural diagram of the piston sleeve described in an embodiment of the present invention Figure 1 ;

[0026] Figure 4 is a schematic structural diagram of the massage head described in an embodiment of the present invention Figure 2 ;

[0027] Figure 5 is a schematic structural diagram of the piston sleeve described in an embodiment of the present invention Figure 2 ;

[0028] Figure 6 is a schematic structural diagram of the installation of a threaded massage head connection structure described in an embodiment of the present invention Figure 1 ;

[0029] Figure 7 is a schematic structural diagram of the installation of a threaded massage head connection structure described in an embodiment of the present invention Figure 2 ;

[0030] Figure 8Structural schematic diagram during the installation of a threaded massage head connection structure described in an embodiment of the present utility model Figure 3 ;

[0031] Figure 9 Structural schematic diagram during the installation of a threaded massage head connection structure described in an embodiment of the present utility model Figure 4 ;

[0032] Explanation of reference numerals:

[0033] 10 - Massage head, 100 - Massage part, 101 - Piston rod, 102 - Annular fixing groove, 103 - Tightening part, 104 - Silicone fixing ring, 105 - Thread, 106 - Insertion section, 107 - Limiting ring, 108 - Induction groove, 109 - Boss, 20 - Piston sleeve, 200 - Piston hole, 201 - Thread tapping, 30 - Touch switch, 40 - Magnetic part, 41 - Magnetic sensor. Specific implementation mode

[0034] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0035] Embodiment 1:

[0036] As Figures 1 to 4 shown, in order to solve the above problems, this embodiment discloses a threaded massage head connection structure, including a massage head 10 and a piston sleeve 20. The massage head 10 includes a massage part 100 and a piston rod 101 connected to the massage part 100. An annular fixing groove 102 and a tightening part 103 are provided on the piston rod 101. The annular fixing groove 102 is arranged at one end of the piston rod 101 close to the massage part 100. A silicone fixing ring 104 is arranged in the annular fixing groove 102. Threads 105 extending outward are provided on the tightening part 103;

[0037] A piston hole 200 is provided on the piston sleeve 20, and thread tapping 201 that is in threaded cooperation with the threads 105 is provided on the inner side wall of the piston hole 200;

[0038] The silicone fixing ring 104 includes an insertion section 106 and a limiting ring 107. When the piston rod 101 is tightened by threaded cooperation of the threads 105 and the thread tapping 201, the end of the piston sleeve 20 presses against the limiting ring 107, and the insertion section 106 is in damping connection with the piston hole 200.

[0039] Compared with the traditional massage head connection structure, the utility model arranges a screw thread 105 on the piston rod 101, arranges a tapping thread 201 on the inner wall of the piston hole 200, and makes the screw thread 105 cooperate with the tapping thread 201 to form a threaded connection, thereby completing the fixation of the massage head 10 and the piston sleeve 20, that is, when the massage head 10 needs to be connected with the piston sleeve 20, the massage head 10 needs to be rotated, and the threaded cooperation connection is used to realize the fastening connection between the massage head 10 and the piston sleeve 20.

[0040] At the same time, in order to further solve the problem that the threaded connection may become loose during high-frequency vibration, a silicone fixing ring 104 is provided to increase the friction between the piston rod 101 and the piston hole 200 when the piston rod 101 is connected to the piston hole 200. When the piston rod 101 and the piston hole 200 are threadedly connected in place, the limit ring 107 of the silicone fixing ring 104 is compressed by the end of the piston sleeve 20 to achieve vibration reduction. At the same time, the damping connection between the insertion section 106 of the silicone fixing ring 104 and the piston hole 200 further prevents the threaded connection from loosening, thereby ensuring that the threaded connection will not loosen during high-frequency reciprocating motion.

[0041] The problem that the massage head 10 of the current fascia gun is prone to falling off during high-frequency reciprocating motion is solved.

[0042] At the same time, in view of the possibility that the user may install or disassemble the massage head 10 during the reciprocating motion of the piston sleeve 20, the massage head 10 must be rotated multiple times to achieve installation or disassembly using threaded fitting. From the installation level, the user must only operate when the piston sleeve 20 is in a stopped state to protect the user.

[0043] In addition, when the massage head 10 is installed on the piston sleeve 20, it needs to be rotated several times to be tightened, and the piston sleeve 20 can only be operated when it is in a stopped state. Similarly, in the running state, the massage head 10 needs to be rotated several times to be removed, and it can only be operated when it is in a stopped state. Therefore, the rotation method is used to ensure that the user can only operate it when the piston sleeve 20 is not moving, thereby protecting the user.

[0044] In order to facilitate the user to install the massage head 10 , preferably, the number of screw threads 105 on the piston rod 101 is 2-4 circles, but the depth needs to ensure the stable connection between the massage head 10 and the piston sleeve 20 .

[0045] To facilitate the installation of the massage head 10 that requires a fixed angle during installation, such as the U-shaped massage head 10, preferably, the number of tapped threads 201 on the inner side wall of the piston hole 200 is one more turn than the number of threads 105 on the piston rod 101, and the number is 3 - 5 turns. Thus, this part of the special massage head 10 can be adjusted to a fixed installation angle.

[0046] As Figure 2 shown, 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 based on the above embodiment. The difference from the above embodiment is that it further includes a touch switch 30, which is arranged at the end of the piston rod 101 inserted into the piston hole 200. When the piston rod 101 is tightly connected to the piston hole 200, the touch switch 30 is triggered.

[0047] When the piston rod 101 is tightly connected to the piston hole 200 by screw threads, the touch switch 30 can contact the bottom of the piston hole 200 and be triggered.

[0048] The touch switch 30 is arranged at the end of the piston rod 101 inserted into the piston hole 200. Only when the piston rod 101 is tightly connected to the piston hole 200 by screw threads can the touch switch 30 contact the bottom of the piston hole 200. The purpose is to make the touch switch 30 contact the bottom of the piston hole 200. After the touch switch 30 is closed, the motor can be started. During the operation of the motor, if the touch switch 30 is separated from the bottom of the piston hole 200, the motor stops running. This can be achieved by simply connecting the touch switch 30 to the control circuit inside 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 utility model.

[0050] As Figure 4 shown, in another embodiment, it further includes a touch switch 30, which is arranged at the bottom of the piston hole 200. When the piston rod 101 is tightly connected to the piston hole 200, the touch switch 30 can be triggered by the piston rod 101.

[0051] In another embodiment, further preferably, a boss 109 that cooperates with the touch switch 30 is provided at the end of the piston rod 101 inserted into the piston hole 200.

[0052] The touch switch 30 is arranged at the inner bottom of the piston hole 200 on the piston sleeve 20. When the piston rod 101 is threadedly connected and fastened to the piston hole 200, one end of the boss 109 on the piston rod 101 can contact the touch switch 30. The purpose is that it is necessary to make the boss 109 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 109 is separated from the touch switch 30, the motor will stop running. It can be achieved only by connecting the touch switch 30 to the control circuit in the fascia gun.

[0053] When the piston rod 101 is threadedly connected and fastened to the piston hole 200, the boss 109 can contact the touch switch 30.

[0054] The touch switch 30 can adopt the touch switch 30 in the prior art that can realize the functions of the present utility model.

[0055] Such as Figure 6 、 Figure 7 As 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. The difference from the above embodiment 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, and a magnetic sensor 41 is provided on the side wall of the fascia gun body. The magnetic sensor 41 is used to detect the magnetic field direction or magnetic field intensity of the magnetic member 40.

[0056] Such as Figure 8 、 Figure 9 As shown, in order to prevent the risk of detachment and potential safety hazards caused by the loosening of the massage head 10 during use, in another embodiment, a magnetic member 40 is provided at one end of the piston rod 101 inserted into the piston hole 200, and 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 intensity of the magnetic member 40.

[0057] By detecting the magnetic field intensity of the magnetic member 40 through the magnetic sensor 41, that is, detecting the position of the piston rod 101 screwed into the piston hole 200. Generally speaking, in the tightened state, the signal obtained by the magnetic sensor 41 detecting the magnetic member 40 is used as a reference signal. When the real-time detection signal changes relative to the reference signal, there may be a risk that the piston rod 101 is separated from the piston hole 200.

[0058] Therefore, by detecting the magnetic field intensity of the magnetic member 40 by the magnetic sensor 41, the displacement change of the piston rod 101 relative to the piston hole 200 can be detected. The drive mechanism (motor) in the fascia gun body can be started only when the reference signal is satisfied. During the operation, if a displacement change occurs and the signal deviates from the reference signal, the drive mechanism (motor) will be immediately stopped.

[0059] In the above embodiments, preferably, the magnetic member 40 can be the magnetized portion of the piston rod 101, or the magnetic member 40 can also be a magnet. For example, the material of the piston rod 101 can be a magnetizable material such as neodymium iron boron, or a partially magnetizable material can be embedded on the piston rod 101 and then magnetized; or a finished magnet can be directly embedded on the piston rod 101.

[0060] When the magnetic member 40 is a magnet, further preferably, an induction groove 108 for installing the magnetic member 40 is provided on the piston rod 101, and the magnet is embedded and fixed through the induction groove 108.

[0061] The magnetic sensor 41 can adopt a magnetic sensor in the prior art. The magnetic sensor 41 needs to be connected to the controller in the muscle massage gun.

[0062] In addition to detecting the magnetic field intensity of the magnetic member 40 by the magnetic sensor 41 to obtain the displacement change as described above, the rotation angle of the piston rod 101 relative to the piston sleeve 20 can also be detected. Thus, the magnetic member 40 can be further eccentrically arranged relative to the axis of the piston rod 101, and the magnetic sensor 41 is used to detect the magnetic field intensity and magnetic field direction of the magnetic member.

[0063] When the magnetic member 40 is eccentrically arranged relative to the axis of the piston rod 101, when the magnetic member 40 is rotated by the piston rod 101, displacement changes and angle changes will occur, and the magnetic sensor 41 will obtain displacement change signals and angle change signals.

[0064] Furthermore, by detecting the angle change signal, the stop of the drive mechanism (motor) can be controlled, increasing double insurance and safety, that is, when either the displacement change signal or the angle change signal is detected, a response can be made to improve the safety guarantee.

[0065] When detecting the angle change signal, when the piston rod 101 is tightened relative to the piston sleeve 20, the angle signal detected by the magnetic sensor 41 for the magnetic member 40 can be used as a reference signal, and the angle change relative to this reference signal is the angle change signal.

[0066] Thus, based on the thread engagement between the thread 105 on the piston rod 101 and the thread 201 on the inner side wall of the piston hole 200, when tightened, the relative rotation angle and relative displacement are within a pre-fixed range. Thus, after the magnetic sensor 41 detects the magnetic field direction or magnetic field intensity of the magnetic member 40, when within the preset range, the motor in the muscle massage gun can be controlled to start by the controller. In the motor start state, if the magnetic field direction or magnetic field intensity of the magnetic member 40 changes and exceeds the preset range, the motor in the muscle massage gun is controlled to stop by the controller.

[0067] Thus, it is possible to monitor whether the massage head 10 is properly installed relative to the piston sleeve 20 or whether it has become detached, improving the operating safety. Especially during the startup and operation of the motor, the situation of damage caused by installing or disassembling the massage head 10 is avoided, this risk is circumvented, and the user is protected.

[0068] As Figures 6 to 9 shown, a fascia gun includes a fascia gun main body and a drive mechanism disposed within the fascia gun main body, and includes a threaded massage head connection structure of any of the above, the piston sleeve 20 is connected to the drive mechanism, and the massage head 10 is connected to the piston sleeve 20.

[0069] Among them, 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 massage and strike the user. And during the operation of the drive mechanism, the massage head 10 cannot be disassembled from the piston sleeve 20, and the drive 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.

[0070] The fascia gun described in this embodiment not only solves the problem that the massage head 10 of the current fascia gun is prone to detachment during high-frequency reciprocating motion. It also provides two detection methods of the touch switch 30 and the cooperation of the magnetic part 40 and the magnetic sensor 41 to detect whether the massage head 10 is properly installed relative to the piston sleeve 20, avoiding the situation of damage caused by installing or disassembling the massage head 10, circumventing this risk, and protecting the user.

[0071] The working principle of the present utility model:

[0072] Compared with the traditional massage head 10 connection structure, in the present utility model, a thread 105 is provided on the piston rod 101, a tapped thread 201 is provided on the inner side wall of the piston hole 200, and at the same time, the thread 105 and the tapped thread 201 are matched to form a threaded connection, thereby completing the fixation of the massage head 10 and the piston sleeve 20. That is, when the massage head 10 and the piston sleeve 20 need to be connected, the massage head 10 needs to be rotated, and the threaded fit connection is used to realize the tight connection between the massage head 10 and the piston sleeve 20.

[0073] Meanwhile, in order to further solve the problem that the threaded connection may become loose during high-frequency vibration, by providing a silicone fixing ring 104, when the piston rod 101 is connected to the piston hole 200, the friction between the piston rod 101 and the piston hole 200 is increased. After the piston rod 101 is screwed into the piston hole 200 in place, the limiting ring 107 of the silicone fixing ring 104 is pressed by the end of the piston sleeve 20 to achieve vibration reduction. At the same time, the damping connection between the insertion section 106 of the silicone fixing ring 104 and the piston hole 200 further plays a role in preventing loosening of the threaded connection. Thus, it is ensured that the threaded connection state will not become loose during high-frequency reciprocating motion.

[0074] The above-described embodiments merely represent the specific embodiments of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A threaded massage head connection structure, characterized in that: The massage head (10) comprises a massage part (100) and a piston sleeve (20), wherein the massage head (10) comprises a massage part (100) and a piston rod (101) connected to the massage part (100), wherein the piston rod (101) is provided with an annular fixing groove (102) and a tightening part (103), wherein the annular fixing groove (102) is arranged at one end of the piston rod (101) close to the massage part (100), a silicone fixing ring (104) is arranged in the annular fixing groove (102), and the tightening part (103) is provided with a screw thread (105) extending outwards; The piston sleeve (20) is provided with a piston hole (200), and the inner wall of the piston hole (200) is provided with a tapping thread (201) that matches the thread of the screw thread (105); The silicone fixing ring (104) comprises an inserting section (106) and a limiting ring (107). When the piston rod (101) is screwed together with the threaded joint (105) and the tapping (201), the end of the piston sleeve (20) presses the limiting ring (107) and the inserting section (106) is dampedly connected to the piston hole (200).

2. A threaded massage head connection structure according to claim 1, characterized in that: It also includes a touch switch (30), which is arranged at the end of the piston rod (101) inserted into the piston hole (200). When the piston rod (101) is tightly connected to the piston hole (200), the touch switch (30) is triggered.

3. A threaded massage head connection structure according to claim 1, characterized in that: It also includes a touch switch (30), which is arranged at the bottom of the piston hole (200). When the piston rod (101) is connected and fastened to the piston hole (200), the touch switch (30) is triggered.

4. A threaded massage head connection structure according to claim 1, characterized in that: A magnetic component (40) is provided at one end of the piston rod (101) inserted into the piston hole (200), and 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 strength of the magnetic component (40).

5. A threaded 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. A threaded massage head connection structure according to claim 4, characterized in that: The magnetic member (40) is a magnet.

7. A threaded massage head connection structure according to claim 6, characterized in that: The piston rod (101) is provided with an induction groove (108) for mounting a magnetic member (40).

8. A threaded massage head connection structure according to any one of claims 4 to 7, characterized in that: The magnetic member (40) is eccentrically arranged relative to the axis of the piston rod (101), and the magnetic sensor (41) is used to detect the magnetic field strength and magnetic field direction of the magnetic member (40).

9. 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 threaded massage head connection structure as claimed in any one of claims 1 to 8, 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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