Fascia gun

Abstract

The invention provides a fascia gun, and relates to the technical field of massage instruments. The fascia gun comprises a shell, the shell defines a containing cavity, and the shell is provided with a movable channel communicated with the containing cavity; the massage mechanism comprises a transmission shaft, a massage head, a first magnet and a reset device, the transmission shaft penetrates through the movable channel and is provided with a first end located in the containing cavity and a second end located outside the containing cavity, the first magnet is arranged at the first end, the massage head is arranged at the second end, and the reset device is arranged between the transmission shaft and the shell; the driving mechanism comprises a driving piece and a second magnet, the driving piece is provided with a rotatable output shaft, the second magnet is arranged on the output shaft, and the second magnet partially surrounds the output shaft; the first magnet is provided with a stress end away from the transmission shaft, the second magnet is provided with a force application end away from the output shaft, and the stress end and the force application end are identical in magnetism. According to the fascia gun, the manufacturing difficulty and the production cost are reduced, the yield of a production line is improved, the working vibration noise is low, and the stability is high.

Description

Technical Field

[0001] This application relates to the field of massage equipment technology, and more particularly to a fascia gun. Background Technology

[0002] With the increasing demand for fitness rehabilitation and daily relaxation, fascia guns, as efficient and convenient muscle relaxation tools, have been widely used in sports rehabilitation, daily health care, and professional physiotherapy. Fascia guns generate high-frequency vibrations through a motor-driven transmission mechanism, which act on the fascia layer of the muscles to relieve muscle tension and promote blood circulation.

[0003] In the process of converting the motor's rotary motion into linear reciprocating motion, traditional fascia guns typically employ a mechanical transmission structure combining bearings and connecting rods. To avoid excessive vibration and noise during operation, this structure requires the inner ring of the bearing and the axis of the transmission shaft to maintain a high degree of parallelism after assembly.

[0004] However, due to the inherent tolerances in the machining of metal components such as bearings, connecting rods and drive shafts, it is difficult for the shaft center to achieve an ideal parallel state after multiple parts are assembled. This results in high requirements for the machining accuracy of metal components. These high-precision machining requirements increase the cost of raw materials and manufacturing, complicate the production process, and lead to a low yield rate in production line assembly. Summary of the Invention

[0005] This application provides a fascia gun that reduces manufacturing difficulty and production costs, improves the yield rate of the production line, and has low vibration and noise during operation and high stability.

[0006] This application provides a fascia gun, comprising: a housing defining a receiving cavity, the housing having a movable channel communicating with the receiving cavity; and a massage mechanism comprising: a drive shaft, a massage head, a first magnet, and a reset device, the drive shaft passing through the movable channel, the drive shaft having a first end located inside the receiving cavity and a second end located outside the receiving cavity, the first magnet being disposed at the first end, the massage head being disposed at the second end, and the reset device being disposed between the drive shaft and the housing;

[0007] A driving mechanism includes: a driving member and a second magnet, the driving member having a rotatable output shaft, the second magnet being disposed on the output shaft and partially surrounding the output shaft; the first magnet having a force-receiving end away from the drive shaft, and the second magnet having a force-applying end away from the output shaft, the force-receiving end and the force-applying end having the same magnetism; the fascia gun is configured such that when the second magnet rotates with the output shaft to be opposite to the first magnet, the drive shaft extends outward, and when the second magnet rotates with the output shaft to be misaligned with the first magnet, the reset device drives the drive shaft to retract inward.

[0008] In one possible implementation, there are multiple second magnets, which are spaced apart circumferentially along the output shaft; the fascia gun is configured such that when any one of the second magnets is opposite to the first magnet, the drive shaft extends outward, and when the gap between any two second magnets is opposite to the first magnet, the drive shaft retracts inward.

[0009] In one possible implementation, the outer end face of the second magnet along the radial direction of the output shaft is formed as an arc surface; the side surface of the first magnet facing the drive mechanism is formed as an arc surface.

[0010] In one possible implementation, the cross-section of the second magnet is formed in a fan shape; the cross-section of the first magnet is formed in a fan shape.

[0011] In one possible implementation, the massage mechanism further includes: a first fixed bracket disposed at a first end of the drive shaft, the first fixed bracket defining a first mounting groove opening toward the drive mechanism, and the first magnet being fixed within the first mounting groove.

[0012] In one possible implementation, the drive mechanism includes: a second fixed bracket disposed on the output shaft, the second fixed bracket having a second mounting groove corresponding to the second magnet, the second mounting groove opening at one end opposite to the output shaft along the axial direction of the output shaft, and the second magnet being fixed in the corresponding second mounting groove.

[0013] In one possible implementation, the second fixed bracket includes: a rotating shaft connecting part, which is sleeved on the output shaft; a magnet mounting part, which is a plurality of magnet mounting parts corresponding to the second magnet, in a direction along the radial direction of the output shaft and away from the central axis of the output shaft, the second mounting groove is formed in the magnet mounting part, and the cross section of the magnet mounting part is formed in the shape of a fan.

[0014] In one possible implementation, the reset device includes: an elastic reset member sleeved on the drive shaft, the drive shaft having a limiting structure, both ends of the elastic reset member abutting against the limiting structure and the housing respectively, and the elastic reset member exerting a force on the drive shaft to retract the drive shaft.

[0015] In one possible implementation, the inner wall of the active channel is provided with an assembly groove, and the massage mechanism further includes a bushing, which is fixed to the assembly groove and sleeved on the outside of the transmission shaft, and the two ends of the elastic reset member abut against the bushing and the limiting structure, respectively.

[0016] In one possible implementation, the drive mechanism further includes a motor bracket disposed in the receiving cavity, and the drive component is fixed to the motor bracket.

[0017] In one possible implementation, the first magnet comprises a strong neodymium magnet; and / or, the second magnet comprises a strong neodymium magnet.

[0018] The fascia gun provided in this embodiment rotates along with the second magnet when the output shaft of the drive mechanism rotates. When the second magnet rotates to a position opposite to the first magnet on the drive shaft of the massage mechanism, a repulsive force is generated due to their identical magnetism, pushing the drive shaft outward and moving the massage head away from the housing in preparation for massage. Correspondingly, as the second magnet continues to rotate with the output shaft, causing it to shift away from the first magnet and no longer be in a directly opposite position, the magnetic repulsive force weakens or disappears. At this time, the drive shaft can retract inward through a mechanical structure (e.g., a spring, whose force is insufficient to completely counteract the magnetic force, only assisting in resetting when the magnetic force weakens), bringing the massage head closer to the housing. Through the continuous rotation of the drive component, the drive shaft can achieve reciprocating motion, driving the massage head to perform rhythmic impact massage.

[0019] As can be seen, the fascia gun of this embodiment, by adopting a magnetically driven non-contact transmission method, effectively avoids the high-precision machining requirements of traditional mechanical linkages and bearing structures, reducing manufacturing difficulty and production costs, and improving the yield rate of the production line. Furthermore, this non-contact transmission method eliminates direct mechanical contact between the power output part and the transmission shaft assembly, effectively reducing the generation of resonance noise, lowering the overall temperature rise caused by friction, and improving the overall performance and user experience of the fascia gun. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0021] Figure 1

[0022] The structural diagram of the fascia gun provided in this application Figure 1 ;

[0023] Figure 2 The structural diagram of the fascia gun provided in this application Figure 2 ;

[0024] Figure 3 The structural diagram of the massage facility provided in this application;

[0025] Figure 4 A schematic diagram of the structure of the second fixed bracket provided in this application.

[0026] Figure label:

[0027] 100 - Housing; 101 - Receiving cavity; 102 - Moving channel; 103 - Assembly groove;

[0028] 200 - Massage mechanism; 210 - Drive shaft; 211 - Limiting structure; 220 - Massage head; 230 - First magnet; 240 - First fixed bracket; 241 - First mounting groove; 250 - Elastic reset element; 260 - Bushing;

[0029] 300-Drive mechanism; 310-Drive component; 320-Second magnet; 330-Second fixed bracket; 331-Second mounting slot; 332-Shaft connection part; 333-Magnet mounting part; 340-Motor bracket.

[0030] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0031] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0032] With the increasing demand for fitness rehabilitation and daily relaxation, fascia guns, as efficient and convenient muscle relaxation tools, have been widely used in sports rehabilitation, daily health care, and professional physiotherapy. Fascia guns generate high-frequency vibrations through a motor-driven transmission mechanism, which act on the fascia layer of the muscles to relieve muscle tension and promote blood circulation.

[0033] In the process of converting the motor's rotary motion into linear reciprocating motion, traditional fascia guns typically employ a mechanical transmission structure combining bearings and connecting rods. To avoid excessive vibration and noise during operation, this structure requires the inner ring of the bearing and the axis of the transmission shaft to maintain a high degree of parallelism after assembly.

[0034] However, due to the inherent tolerances in the machining of metal components such as bearings, connecting rods and drive shafts, it is difficult for the shaft center to achieve an ideal parallel state after multiple parts are assembled. This results in high requirements for the machining accuracy of metal components. These high-precision machining requirements increase the cost of raw materials and manufacturing, complicate the production process, and lead to a low yield rate in production line assembly.

[0035] In addition, direct contact and relative motion between mechanical parts can easily cause resonance, generating continuous noise interference. Friction can also accumulate heat, causing the overall operating temperature of the machine to rise, affecting the stability of the equipment and the user experience.

[0036] In view of this, this application provides a fascia gun that, by employing a magnetically driven non-contact transmission method, effectively avoids the high-precision machining requirements of traditional mechanical linkages and bearing structures, reducing manufacturing difficulty and production costs, and improving production line yield. Furthermore, this non-contact transmission method eliminates direct mechanical contact between the power output section and the transmission shaft assembly, effectively reducing resonance noise and lowering the overall temperature rise caused by friction, thereby improving the overall performance and user experience of the fascia gun.

[0037] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0038] This application provides a fascia gun, which can be a physiotherapy fascia gun, a home-use conventional fascia gun, a portable mini fascia gun, an intelligent sensor fascia gun, etc.

[0039] Combination Figure 1 , Figure 2 and Figure 3 The fascia gun includes a housing 100, a massage mechanism 200, and a drive mechanism 300. The housing 100 defines a receiving cavity 101 and has a movable channel 102 communicating with the receiving cavity 101. The massage mechanism 200 includes a drive shaft 210, a massage head 220, and a first magnet 230. The drive shaft 210 passes through the movable channel 102 and has a first end located inside the receiving cavity 101 and a second end located outside the receiving cavity 101. The first magnet 230 is located at the first end, and the massage head 220 is located at the second end. The massage mechanism 200 also includes a reset device located between the drive shaft 210 and the housing 100.

[0040] The drive mechanism 300 includes a drive member 310 and a second magnet 320. The drive member 310 has a rotatable output shaft, and the second magnet 320 is disposed on the output shaft, partially surrounding the output shaft. The first magnet 230 has a force-receiving end away from the drive shaft 210, and the second magnet 320 has a force-applying end away from the output shaft. The force-receiving end and the force-applying end have the same magnetism.

[0041] The fascia gun is configured such that when the second magnet 320 rotates with the output shaft to be opposite to the first magnet 230, the drive shaft 210 extends outward, and when the second magnet 320 rotates with the output shaft to be misaligned with the first magnet 230, the reset device drives the drive shaft 210 to retract inward.

[0042] Specifically, the housing 100 can be the outer structure of the fascia gun, used to protect the internal components and provide a gripping interface. The housing 100 internally defines a receiving cavity 101 for housing core components such as the drive mechanism 300. The housing 100 also has a movable channel 102 communicating with the receiving cavity 101, allowing the drive shaft 210 of the massage mechanism 200 to reciprocate. Optionally, the housing 100 can be manufactured using injection molding.

[0043] The massage mechanism 200 is the core component of the fascia gun to achieve the massage function. The massage mechanism 200 may include a drive shaft 210, a massage head 220, and a first magnet 230. The drive shaft 210 is designed to pass through the movable channel 102 of the housing 100. The drive shaft 210 has two ends. The first end is located inside the receiving cavity 101 of the housing 100, and the second end extends to the outside of the receiving cavity 101.

[0044] The massage head 220 is mounted on the second end of the drive shaft 210 and can directly contact and act on the target area (such as the human body). The first magnet 230 is disposed on the first end of the drive shaft 210, and its magnetism interacts with the second magnet 320 in the drive mechanism 300 to drive the movement of the drive shaft 210.

[0045] Optionally, the first magnet 230 can be directly bonded or embedded into the first end surface of the drive shaft 210, and its shape can be block-shaped or cylindrical to ensure effective magnetic coupling with the second magnet 320 in the drive mechanism 300.

[0046] Optionally, the massage head 220 includes a fixed base and a replaceable head. Multiple replaceable heads may be provided, each with a different shape. The replaceable heads are detachably mounted on the fixed base and can be applied directly to the target area during fascia gun operation. The fixed base is fixed to the second end. For example, the fixed base may be a male head, fixed to the second end by a locking screw.

[0047] The drive mechanism 300 provides power to the fascia gun. The drive mechanism 300 includes a drive element 310 and a second magnet 320. The drive element 310 can be a component capable of generating rotational motion, such as a motor. The drive element 310 has a rotatable output shaft. The second magnet 320 is disposed on the output shaft and partially surrounds the output shaft.

[0048] The first magnet 230 has a force-receiving end away from the drive shaft 210, and the second magnet 320 has a force-applying end away from the output shaft. The force-receiving end and the force-applying end have the same magnetic properties. The first magnet 230 also has a first connecting end near the drive shaft 210, with the magnetic properties of the first connecting end and the force-receiving end being opposite; that is, the two magnetic poles of the first magnet 230 are located at the first connecting end and the force-receiving end, respectively. Similarly, the second magnet 320 also has a second connecting end near the output shaft, with the magnetic properties of the second connecting end and the force-applying end being opposite; that is, the two magnetic poles of the second magnet 320 are located at the second connecting end and the force-applying end, respectively. The second magnet 320 and the first magnet 230 can achieve non-contact driving of the drive shaft 210 through magnetic repulsion or attraction.

[0049] Optionally, the drive unit 310 can be a miniature DC motor, and the force-applying end of the second magnet 320 and the force-receiving end of the first magnet 230 have the same magnetism, for example, both are N poles or S poles, thus generating a repulsive force when they approach each other. Optionally, the second magnet 320 can be a ring magnet or an arc-shaped magnet, directly fixed to the outside of the output shaft.

[0050] Thus, when the output shaft of the drive mechanism 300 rotates, the second magnet 320 also rotates. When the second magnet 320 rotates to a position opposite to the first magnet 230 on the drive shaft 210 of the massage mechanism 200, since the two have the same magnetism, a repulsive force will be generated, thereby pushing the drive shaft 210 to extend outward, so that the massage head 220 moves away from the housing 100 and is ready to perform massage.

[0051] Correspondingly, as the second magnet 320 continues to rotate with the output shaft, causing it to shift away from the first magnet 230 (i.e., no longer in a directly opposing position), the magnetic repulsion weakens or disappears. At this time, the drive shaft 210 can retract inward via a reset device (e.g., a spring, whose force is insufficient to completely counteract the magnetic force, only assisting in reset when the magnetic force weakens), bringing the massage head 220 closer to the housing 100. Through the continuous rotation of the drive member 310, the drive shaft 210 can achieve reciprocating motion, driving the massage head 220 to perform rhythmic impact massage.

[0052] As can be seen, the fascia gun of this embodiment, by adopting a magnetically driven non-contact transmission method, effectively avoids the high-precision machining requirements of traditional mechanical linkages and bearing structures, reducing manufacturing difficulty and production costs, and improving the yield rate of the production line. Furthermore, this non-contact transmission method eliminates direct mechanical contact between the power output section and the transmission shaft 210 assembly, effectively reducing the generation of resonance noise, lowering the overall temperature rise caused by friction, and improving the overall performance and user experience of the fascia gun.

[0053] In some specific embodiments, two second magnets 320 may be provided, arranged circumferentially at intervals along the output shaft, with the interval angle being 180 degrees. When one of the second magnets 320 rotates to be opposite the first magnet 230 on the drive shaft 210, this position is defined as the first position. In this first position, due to the maximum repulsive force between like magnetic poles, the drive shaft 210 is pushed to its outermost end, and the distance between the massage head 220 and the port of the active channel 102 is a relatively large value, for example, 22.7 mm.

[0054] As the output shaft continues to rotate, the second magnet 320 gradually shifts away from the first magnet 230, the magnetic repulsion weakens, and the drive shaft 210 can begin to retract inward under the action of a restoring force (such as spring force). When its rotation angle is greater than or equal to 90 degrees (within this rotation range, the other second magnet 320 is away from the first magnet 230 and has not yet produced a significant repulsive effect on the first magnet 230), the distance between the massage head 220 and the port of the active channel 102 is shortened to a smaller value, such as 17.7 mm.

[0055] Since the two second magnets 320 are spaced apart in the circumferential direction (e.g., 180 degrees apart), the rotation of the output shaft causes the two second magnets 320 to alternately face the first magnet 230. In this cycle, the two second magnets 320 work alternately, and under the continuous rotation drive of the output shaft, the transmission shaft 210 and the massage head 220 produce continuous linear reciprocating motion without mechanical contact with the drive mechanism 300.

[0056] In some embodiments, combined with Figure 1 , Figure 2 and Figure 4 There are multiple second magnets 320, and the multiple second magnets 320 are arranged circumferentially along the output shaft; the fascia gun is configured such that when any second magnet 320 is opposite to the first magnet 230, the drive shaft 210 extends outward, and when the gap between any two second magnets 320 is opposite to the first magnet 230, the drive shaft 210 retracts inward.

[0057] Specifically, there are multiple second magnets 320, specifically two or more second magnets 320 can be configured. The second magnets 320 work together to interact magnetically with the first magnet 230 to ensure a consistent repulsive force. The multiple second magnets 320 are arranged circumferentially around the output shaft, that is, the multiple second magnets 320 are distributed in a ring around the output shaft of the drive member 310, with gaps between them.

[0058] For example, two, three, four or more second magnets 320 can be evenly distributed around the circumference of the output shaft, with a certain angle gap between each magnet. This arrangement ensures that when the output shaft rotates, the first magnet 230 can interact sequentially with each second magnet 320 and the gap between two adjacent second magnets 320.

[0059] During the operation of the fascia gun, when the output shaft of the drive mechanism 300 rotates, causing any one of the multiple second magnets 320 to face the first magnet 230 of the massage mechanism 200, a repulsive force will be generated because the two have the same magnetism. This repulsive force will push the first magnet 230, thereby driving the transmission shaft 210 to move outward, causing the massage head 220 to move away from the housing 100.

[0060] Subsequently, as the output shaft continues to rotate, so that the first magnet 230 is no longer directly facing either of the second magnets 320, but is directly facing the gap between the two second magnets 320, the repulsive force on the first magnet 230 will weaken or disappear, and the transmission shaft 210 will retract inward under the action of the reset force, causing the massage head 220 to retract.

[0061] Through the above technical solution, the drive mechanism 300 is equipped with multiple second magnets 320 and the multiple second magnets 320 are arranged circumferentially along the output shaft, so that multiple magnetic interactions can be generated when the drive member 310 rotates once, realizing multiple reciprocating motions of the massage head 220, so that the fascia gun can obtain a higher massage frequency without significantly increasing the rotation speed of the drive member 310.

[0062] Furthermore, by adjusting the number of the second magnets 320 or the rotation speed of the drive unit 310, the massage frequency can be adjusted more flexibly, improving the adaptability and user experience of the fascia gun, ensuring that the massage head 220 can deliver impacts in a more stable and continuous manner, and enhancing the massage effect.

[0063] In some embodiments, combined with Figures 1 to 4 The outer end face of the second magnet 320 along the radial direction of the output shaft is formed as an arc surface, and the surface of the first magnet 230 facing the drive mechanism 300 is formed as an arc surface.

[0064] Specifically, the outer end face of the second magnet 320 along the radial direction of the output shaft is formed as an arc surface, that is, the outer radial surface of the second magnet 320 away from the central axis of the output shaft is constructed into an arc shape. This arc surface design allows the area of ​​magnetic force application to gradually transition from point contact to surface contact when the second magnet 320 interacts with the first magnet 230 during rotation, or to maintain a changing but continuous area of ​​magnetic force application throughout the entire relative motion.

[0065] Furthermore, the surface of the first magnet 230 facing the drive mechanism 300 is formed as an arc surface; that is, the surface of the first magnet 230 facing the drive mechanism 300 (i.e., facing the second magnet 320) is constructed into an arc shape. This arc surface, together with the arc surface of the second magnet 320, constitutes the interface for magnetic interaction. When the opposing surfaces of the first magnet 230 and the second magnet 320 are both arc-shaped, the magnetic coupling between them will be smoother and more gradual.

[0066] Through the above technical solution, the outer end face of the second magnet 320 along the radial direction of the output shaft is formed as an arc surface, and the surface of the first magnet 230 facing the drive mechanism 300 is formed as an arc surface. Due to the design of the arc surface, the process of establishing and releasing the magnetic force becomes gradual and continuous.

[0067] As the second magnet 320 gradually approaches the first magnet 230, the magnetic force steadily increases, making the extension of the drive shaft 210 smoother; as the second magnet 320 gradually moves away from the first magnet 230, the magnetic force steadily decreases, making the retraction of the drive shaft 210 smoother as well. This smooth magnetic force transmission mechanism avoids potential impacts and vibrations to the drive shaft 210 during movement, improving the massage comfort of the fascia gun and helping to reduce wear on mechanical parts, thus extending the lifespan of the device.

[0068] In some embodiments, combined with Figures 1 to 4 The cross-section of the second magnet 320 is formed in a fan shape; the cross-section of the first magnet 230 is formed in a fan shape.

[0069] Specifically, the central angle, radius, and thickness of the sector-shaped cross-section of the second magnet 320 can be designed according to the required magnetic field distribution, magnetic force, and its matching relationship with the first magnet 230. For example, it can be designed as a sector with a central angle between 30 and 120 degrees, and the outer arc surface of the second magnet 320 can match the rotation trajectory of the output shaft.

[0070] By adopting a fan-shaped cross section, the second magnet 320 can effectively concentrate its magnetic field in a preset direction and area during rotation, thereby generating a stronger magnetic force when it is opposite to the first magnet 230.

[0071] Accordingly, the sector parameters (such as central angle and radius) of the first magnet 230 can be matched with those of the second magnet 320 to ensure that the two can form optimal magnetic coupling when they are relative to each other. For example, when the second magnet 320 consists of multiple sector magnets spaced circumferentially along the output shaft, the sector cross-section of the first magnet 230 can be designed to match the magnetic field distribution of a single second magnet 320 or a combination of multiple second magnets 320 to maximize the magnetic effect.

[0072] The fan-shaped cross-section design of the first magnet 230 enables the first magnet 230 to form a tighter and more effective magnetic coupling with the fan-shaped cross-section second magnet 320, enhancing the directionality and concentration of the magnetic force and optimizing the stability of the reciprocating motion of the transmission shaft 210.

[0073] Through the above technical solution, the cross sections of the first magnet 230 and the second magnet 320 are both formed into a fan shape, so that the magnetic lines of force can pass through the effective action area more concentratedly when the magnets are opposite each other. This allows the second magnet 320 to generate a stronger and more concentrated magnetic coupling when it rotates with the output shaft to be opposite the first magnet 230, effectively improving the impact force of the transmission shaft 210 extending outward.

[0074] Furthermore, when the second magnet 320 rotates with the output shaft to a position offset from the first magnet 230, the fan-shaped cross-section helps to rapidly weaken the magnetic field, allowing the transmission shaft 210 to retract inward more quickly. This ensures the reciprocating frequency and stability of the fascia gun, and improves the uniformity and comfort of the massage effect.

[0075] In some embodiments, combined with Figures 1 to 3 The massage mechanism 200 also includes a first fixed bracket 240. The first fixed bracket 240 is disposed at the first end of the drive shaft 210 and defines a first mounting groove 241 that opens toward the drive mechanism 300. The first magnet 230 is fixed in the first mounting groove 241.

[0076] Specifically, the first fixed bracket 240 is a structural component used to support and fix the first magnet 230, and can be made of materials such as metal or engineering plastics. The first fixed bracket 240 is located at the first end of the drive shaft 210 to ensure that the first magnet 230 can be tightly integrated with the drive shaft 210 and directly participate in the reciprocating motion generated by the drive mechanism 300.

[0077] The first fixed bracket 240 defines a first mounting groove 241 that opens toward the drive mechanism 300. The first mounting groove 241 is a groove on the first fixed bracket 240 for accommodating the first magnet 230, and its opening faces the drive mechanism 300, which facilitates the assembly and positioning of the first magnet 230.

[0078] The shape and size of the mounting slot can be designed to match the shape of the first magnet 230. For example, if the first magnet 230 is cylindrical, the mounting slot can be a circular hole; if the first magnet 230 is fan-shaped, the mounting slot can be a fan-shaped slot.

[0079] The first magnet 230 is fixed in the first mounting groove 241. The fixing method can be to firmly bond the first magnet 230 to the mounting groove with an adhesive (such as epoxy resin glue), or to ensure that the first magnet 230 can remain fixed when subjected to impact or vibration by means of mechanical buckle, pressing fit, screw fastening, etc.

[0080] Through the above technical solution, a first fixed bracket 240 is provided at the first end of the transmission shaft 210, and the bracket is used to define a first mounting groove 241 that opens toward the drive mechanism 300, so that the first magnet 230 can be firmly fixed in the first mounting groove 241, ensuring a stable connection between the first magnet 230 and the transmission shaft 210, making the magnetic force relationship between the first magnet 230 and the second magnet 320 in the drive mechanism 300 more stable and controllable, ensuring the accuracy and consistency of the reciprocating motion of the transmission shaft 210, and improving the massage effect of the fascia gun and the overall reliability of operation.

[0081] In some embodiments, combined with Figure 1 , Figure 2 and Figure 4 The drive mechanism 300 includes a second fixed bracket 330, which is disposed on the output shaft. The second fixed bracket 330 is provided with a second mounting groove 331 corresponding to the second magnet 320. The second mounting groove 331 is open at one end opposite to the output shaft along the axial direction of the output shaft. The second magnet 320 is fixed in the corresponding second mounting groove 331.

[0082] Specifically, the second fixed bracket 330 can be made of metal, engineering plastic or other composite materials. The second fixed bracket 330 can be fixed on the output shaft by means of interference fit, key connection, threaded connection or integral molding to ensure synchronous rotation with the output shaft.

[0083] For example, the second fixed bracket 330 can be fixed to the output shaft by pressing or bonding by opening a hole in the center of the second fixed bracket 330 that matches the outer diameter of the output shaft; or, the output shaft can be provided with a keyway and the second fixed bracket 330 can be provided with a corresponding key, so that torque can be transmitted and relative rotation can be prevented by key connection; or, the second fixed bracket 330 can also be integrally formed with the output shaft.

[0084] The shape and size of the second mounting slot 331 can be designed to match the shape of the second magnet 320. For example, if the second magnet 320 is rectangular or fan-shaped, the second mounting slot 331 will also be designed as a rectangular or fan-shaped slot accordingly. The second mounting slot 331 provides precise radial and circumferential positioning for the second magnet 320, ensuring that the second magnet 320 maintains its preset position during the rotation of the drive mechanism 300.

[0085] The second mounting slot 331 has an opening at one end opposite to the output shaft along the axial direction, facilitating the assembly and disassembly of the second magnet 320 and allowing the operator to slide or place the second magnet 320 into the second mounting slot 331 axially. Furthermore, this opening design may also contribute to the specific directional guidance of the magnetic field or heat dissipation.

[0086] The second magnet 320 can be fixed in the second mounting groove 331 by using structural adhesive to bond it, pressing the magnet into the groove by interference fit, or fixing the second magnet with potting material (such as epoxy resin) after the second magnet 320 is placed in the second mounting groove 331, so as to ensure that the second magnet 320 will not loosen or fall off during the high-speed rotation and long-term operation of the drive mechanism 300, so as to maintain the stability and reliability of magnetic drive.

[0087] Through the above technical solution, a second fixed bracket 330 is set in the drive mechanism 300, providing a stable mounting platform for the second magnet 320. The second mounting groove 331 ensures that the second magnet 320 maintains the preset radial and circumferential positions when the output shaft rotates. The second mounting groove 331 is open at one end opposite to the output shaft along the axial direction of the output shaft, which simplifies the assembly process of the second magnet 320 and improves production efficiency. The second magnet 320 is fixed in the corresponding second mounting groove 331, avoiding loosening or displacement caused by centrifugal force or vibration during high-speed rotation. This ensures the stability and accuracy of the magnetic coupling between the second magnet 320 and the first magnet 230 of the massage mechanism 200, making the extension and retraction of the massage head 220 of the fascia gun more reliable and consistent, and improving the overall massage effect.

[0088] In some embodiments, combined with Figure 1 , Figure 2 and Figure 4 The second fixed bracket 330 includes a rotating shaft connecting part 332 and a magnet mounting part 333. The rotating shaft connecting part 332 is sleeved on the output shaft. There are multiple magnet mounting parts 333 corresponding to the second magnets 320, which are located radially away from the central axis of the output shaft. A second mounting groove 331 is formed in the magnet mounting part 333, and the cross-section of the magnet mounting part 333 is fan-shaped.

[0089] Specifically, the shaft connection part 332 is the part of the second fixed bracket 330 used to connect with the output shaft. The shaft connection part 332 is designed to be able to be sleeved on the output shaft. The shaft connection part 332 can be in the form of a ring or a cylindrical structure to be tightly installed on the outer surface of the output shaft.

[0090] For example, the shaft connection 332 can be fixed to the output shaft by various methods such as interference fit, key connection, threaded connection or welding. The shaft connection 332 provides a stable and reliable rotational base for the entire second fixed bracket 330, which facilitates the stable transmission of the rotational power of the drive component 310 to the magnet mounting part 333.

[0091] The magnet mounting part 333 can be used to mount a second magnet 320. The fascia gun can contain multiple second magnets 320, and the magnet mounting parts 333 are also designed to be multiple, with each magnet mounting part 333 corresponding to one second magnet 320. The magnet mounting parts 333 extend radially outward along the output shaft. This radial arrangement is beneficial for generating a larger magnetic torque during rotation, thereby more effectively driving the reciprocating motion of the transmission shaft 210 and expanding the range of the magnetic field.

[0092] The second mounting groove 331 is provided inside the magnet mounting part 333 to ensure that the second magnet 320 can be stably held in the predetermined position when the fascia gun is running at high speed, and to prevent displacement or falling off due to centrifugal force or other vibrations.

[0093] The magnet mounting section 333 has a fan-shaped cross-section. This fan-shaped cross-section design allows for compact and efficient space utilization when multiple magnet mounting sections 333 are arranged circumferentially, forming a compact and strong whole structure. In addition, this fan-shaped design also helps to optimize the distribution of the magnetic field, making the magnetic force more concentrated and effective.

[0094] Through the above technical solution, the second fixed bracket 330 includes a rotating shaft connecting part 332 and multiple magnet mounting parts 333. The rotating shaft connecting part 332 can be stably sleeved on the output shaft to ensure effective transmission of driving force. The multiple magnet mounting parts 333 extend radially outward along the output shaft and have a second mounting groove 331 to fix the second magnet 320, so that the second magnet 320 can be in a better position for magnetic force action. The fan-shaped cross-section design of the magnet mounting parts 333 allows the multiple magnet mounting parts 333 to be arranged around the output shaft to form a compact whole, which improves the stability and accuracy of the installation of the second magnet 320, effectively resists the centrifugal force generated by high-speed rotation, avoids the risk of magnet loosening or falling off, and also optimizes the magnetic field distribution, ensuring the efficiency of the magnetic force action between the first magnet 230 and the second magnet 320 and the smoothness of the reciprocating motion, thereby improving the overall performance and service life of the fascia gun.

[0095] In some embodiments, combined with Figure 2 and Figure 3The reset device includes an elastic reset member 250, which is sleeved on the transmission shaft 210. The transmission shaft 210 is provided with a limiting structure 211. The two ends of the elastic reset member 250 abut against the limiting structure 211 and the housing 100 respectively. The elastic reset member 250 has a force on the transmission shaft 210 that causes the transmission shaft 210 to retract.

[0096] Specifically, the resilient reset element 250 can be a compression spring, such as a helical spring or a conical spring, made of spring steel or other alloy materials with good elasticity. The resilient reset element 250 ensures that it can effectively store energy when the drive shaft 210 extends and provide sufficient thrust when the drive shaft 210 retracts.

[0097] The limiting structure 211 provides a fixed support point or abutment surface for the elastic reset member 250, ensuring that the elastic reset member 250 can be reliably positioned on the drive shaft 210 and can effectively transmit the reset force. The limiting structure 211 can be a flange, a retaining ring, a stepped diameter variation portion on the drive shaft 210, or a limiting ring provided on the drive shaft 210.

[0098] The inner diameter of the elastic reset member 250 can be slightly larger than the outer diameter of the drive shaft 210, allowing it to slide freely along the axial direction of the drive shaft 210 and be constrained by the drive shaft 210 in the radial direction. The sleeve design of the elastic reset member 250 ensures that the force applied by the elastic reset member 250 is along the axial direction of the drive shaft 210, thereby effectively driving the telescopic movement of the drive shaft 210.

[0099] The fixing structure inside the housing 100 that the elastic reset member 250 abuts against can be an inner wall step, an annular member fixed inside the housing 100, or a support seat. When the drive shaft 210 extends outward under the action of magnetic force, the elastic reset member 250 is compressed, and its two ends are respectively subjected to the reaction forces of the limiting structure 211 and the housing 100, thereby storing elastic potential energy.

[0100] When the drive shaft 210 extends under the action of magnetic attraction, the elastic reset member 250 is compressed, generating a preload or reset force pointing in the direction of the drive shaft 210's retraction. When the second magnet 320 of the drive mechanism 300 is misaligned with the first magnet 230, and the magnetic attraction weakens, the energy stored in the elastic reset member 250 is released, and the resulting reset force actively pushes the drive shaft 210 inward, causing it to quickly return to its initial retracted position.

[0101] Through the above technical solution, when the second magnet 320 of the drive mechanism 300 rotates with the output shaft to be opposite the first magnet 230, the magnetic attraction between the first magnet 230 and the second magnet 320 is sufficient to overcome the preload of the elastic reset member 250, causing the transmission shaft 210 to extend outward and compressing the elastic reset member 250 to store energy. When the second magnet 320 rotates with the output shaft to be misaligned with the first magnet 230, the magnetic attraction weakens, the elastic potential energy stored in the elastic reset member 250 is released, and the resulting reset force will actively and rapidly push the transmission shaft 210 to retract inward.

[0102] This design ensures that the drive shaft 210 can quickly return from the extended position to the retracted position in each cycle, enabling the massage head 220 of the fascia gun to achieve more precise and stable reciprocating motion, improving the rhythm of the massage and the uniformity of the striking frequency.

[0103] In some embodiments, combined with Figure 2 and Figure 3 The inner wall of the active channel 102 is provided with an assembly groove 103. The massage mechanism 200 also includes a bushing 260, which is fixed to the assembly groove 103 and sleeved on the outside of the transmission shaft 210. The two ends of the elastic reset member 250 abut against the bushing 260 and the limiting structure 211, respectively.

[0104] Specifically, the mounting groove 103 can be a recessed area formed on the inner wall of the movable channel 102, used to position and accommodate the bushing 260. The mounting groove 103 can be an annular groove or multiple recesses distributed along the axial direction, ensuring the stability and accurate position of the bushing 260 in the movable channel 102.

[0105] The massage mechanism 200 also includes a bushing 260, which may be a cylindrical structure and may be made of a wear-resistant material, such as engineering plastics, metals, or composite materials. The inner diameter of the bushing 260 may be slightly larger than the outer diameter of the drive shaft 210, so that it can be fitted onto the outside of the drive shaft 210 and allow the drive shaft 210 to slide smoothly inside it.

[0106] The bushing 260 is fixed in the assembly groove 103. The fixing method can be interference fit (press fit), bonding, threaded connection or mechanical means such as buckle and pin to ensure a reliable connection between the bushing 260 and the housing 100.

[0107] The bushing 260 is fitted onto the outside of the drive shaft 210. The bushing 260 serves as an external support and guide for the drive shaft 210, providing a stable sliding interface for its reciprocating motion. This fitted arrangement helps reduce direct friction between the drive shaft 210 and the inner wall of the moving channel 102, reducing wear and improving the smoothness of the drive shaft 210's movement. The two ends of the elastic reset member 250 abut against the bushing 260 and the limiting structure 211, respectively. This abutment method allows the reset force of the elastic reset member 250 to be transmitted through the bushing 260.

[0108] Through the above technical solution, the bushing 260 provides a stable and wear-resistant contact surface for the elastic reset component 250, avoiding direct contact with the inner wall of the housing 100. This reduces wear on the inner wall of the housing 100 caused by the long-term action of the elastic reset component 250, extending the service life of the housing 100. Furthermore, when maintenance or replacement of the elastic reset component 250 is required, the bushing 260, being fixed in the mounting groove 103, allows for easier disassembly and installation, simplifying the maintenance process and improving the overall maintainability of the fascia gun.

[0109] In some embodiments, combined with Figure 1 and Figure 2 The drive mechanism 300 also includes a motor bracket 340, which is located in the receiving cavity 101, and the drive component 310 is fixed to the motor bracket 340.

[0110] Specifically, the motor bracket 340 provides a stable and reliable mounting base for the drive component 310, ensuring the positional accuracy and operational stability of the drive component 310 during operation. The motor bracket 340 can be made of metal (such as aluminum alloy or stainless steel) or high-strength engineering plastic. Optionally, the motor bracket 340 can be designed as a plate-like structure with multiple mounting holes, or a frame structure with a specific shape, to facilitate the installation and fixation of the drive component 310.

[0111] The motor bracket 340 is located inside the fascia gun's receiving cavity 101, which helps to integrate the drive mechanism 300 into the internal space of the fascia gun, making its structure compact and avoiding the influence of the external environment on the drive mechanism 300.

[0112] The receiving cavity 101 provides installation space for the motor bracket 340. Optionally, the motor bracket 340 can be connected to the inner wall or internal structural components of the housing 100 by screws, clips, welding or other connection methods to achieve a stable installation.

[0113] Optionally, the drive component 310 can be securely mounted on the motor bracket 340 by means of screws, clips, adhesive, or press-fit. This fixing method ensures that the drive component 310 will not undergo relative displacement or loosening during operation.

[0114] Through the above technical solution, the drive component 310 in the drive mechanism 300 is firmly fixed on the motor bracket 340 located in the receiving cavity 101. This structural design provides a solid and stable installation foundation for the drive component 310, effectively suppressing the vibration and displacement that may occur when the drive component 310 is running at high speed.

[0115] The operational stability of the drive component 310 is improved, and the rotation of its output shaft will be more stable, thereby ensuring that the magnetic force between the second magnet 320 and the first magnet 230 is more precise and stable. This makes the extension and retraction of the transmission shaft 210 smoother and more controllable, improving the massage effect of the fascia gun and the user experience. It also extends the service life of the drive mechanism 300 and avoids failures caused by loosening or excessive vibration of the drive component 310.

[0116] In some embodiments, the first magnet 230 may optionally include a strong neodymium magnet; the second magnet 320 may optionally include a strong neodymium magnet.

[0117] The strong neodymium magnet can be neodymium iron boron (NdFeB) magnet, a rare-earth permanent magnet material with high magnetic energy product and coercivity, making it one of the strongest permanent magnet materials. In the application of the fascia gun, the first magnet 230 and / or the second magnet 320 are set as strong neodymium magnets to ensure that a sufficiently strong magnetic force is generated when the first magnet 230 and the second magnet 320 are opposite each other, thereby driving the drive shaft 210 to perform effective extension and retraction movements. Strong neodymium magnets also have excellent magnetic property stability and are not easily demagnetized, ensuring the consistency of the fascia gun's performance during long-term use.

[0118] By using the above technical solution, setting the first magnet 230 and / or the second magnet 320 as strong neodymium magnets can enhance the magnetic field strength between the first magnet 230 and the second magnet 320. When the second magnet 320 rotates with the output shaft to be opposite the first magnet 230, the stable magnetic force ensures that the drive shaft 210 extends outward with a strong and stable force; when the second magnet 320 rotates with the output shaft to be misaligned with the first magnet 230, the drive shaft 210 can retract inward more quickly and thoroughly, enabling the massage mechanism 200 of the fascia gun to generate a stronger and more consistent reciprocating motion, thereby improving the response speed and operational stability of the device.

[0119] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A fascia gun, characterized in that, include: A housing (100) defines a receiving cavity (101) and has a movable channel (102) communicating with the receiving cavity (101). The massage mechanism (200) includes: a drive shaft (210), a massage head (220), a first magnet (230), and a reset device. The drive shaft (210) passes through the movable channel (102). The drive shaft (210) has a first end located inside the receiving cavity (101) and a second end located outside the receiving cavity (101). The first magnet (230) is located at the first end, the massage head (220) is located at the second end, and the reset device is located between the drive shaft (210) and the housing (100). The drive mechanism (300) includes: a drive member (310) and a second magnet (320), the drive member (310) having a rotatable output shaft, the second magnet (320) being disposed on the output shaft, and the second magnet (320) partially surrounding the output shaft; The first magnet (230) has a force-receiving end away from the drive shaft (210), and the second magnet (320) has a force-applying end away from the output shaft. The force-receiving end and the force-applying end have the same magnetism. The fascia gun is configured such that when the second magnet (320) rotates with the output shaft to be opposite to the first magnet (230), the drive shaft (210) extends outward, and when the second magnet (320) rotates with the output shaft to be misaligned with the first magnet (230), the reset device drives the drive shaft (210) to retract inward.

2. The fascia gun according to claim 1, characterized in that, There are multiple second magnets (320), and the multiple second magnets (320) are arranged at circumferential intervals along the output shaft; The fascia gun is configured such that when any one of the second magnets (320) is opposite to the first magnet (230), the drive shaft (210) extends outward, and when the gap between any one of the second magnets (320) is opposite to the first magnet (230), the drive shaft (210) retracts inward.

3. The fascia gun according to claim 1 or 2, characterized in that, The outer end face of the second magnet (320) along the radial direction of the output shaft is formed as an arc surface; The side surface of the first magnet (230) facing the drive mechanism (300) is formed as an arc surface.

4. The fascia gun according to claim 1 or 2, characterized in that, The cross-section of the second magnet (320) is formed in a fan shape; The cross-section of the first magnet (230) is formed in the shape of a fan.

5. The fascia gun according to claim 1 or 2, characterized in that, The massage mechanism (200) also includes: A first fixed bracket (240) is disposed at the first end of the drive shaft (210). The first fixed bracket (240) defines a first mounting groove (241) that opens toward the drive mechanism (300). The first magnet (230) is fixed in the first mounting groove (241).

6. The fascia gun according to claim 1 or 2, characterized in that, The drive mechanism (300) includes: The second fixed bracket (330) is disposed on the output shaft. The second fixed bracket (330) is provided with a second mounting groove (331) corresponding to the second magnet (320). The second mounting groove (331) is open at one end opposite to the output shaft along the axial direction of the output shaft. The second magnet (320) is fixed in the corresponding second mounting groove (331).

7. The fascia gun according to claim 6, characterized in that, The second fixing bracket (330) includes: A rotating shaft connecting part (332) is sleeved on the output shaft; The magnet mounting portion (333) consists of a plurality of magnet mounting portions corresponding to the second magnet (320), and the second mounting groove (331) is formed in the magnet mounting portion (333) along the radial direction of the output shaft and away from the central axis of the output shaft. The cross section of the magnet mounting portion (333) is formed in a fan shape.

8. The fascia gun according to claim 1 or 2, characterized in that, The reset device includes: An elastic reset member (250) is sleeved on the transmission shaft (210). The transmission shaft (210) is provided with a limiting structure (211). The two ends of the elastic reset member (250) abut against the limiting structure (211) and the housing (100) respectively. The elastic reset member (250) exerts a force on the transmission shaft (210) to cause the transmission shaft (210) to contract.

9. The fascia gun according to claim 8, characterized in that, The inner wall of the active channel (102) is provided with an assembly groove (103). The massage mechanism (200) further includes: a bushing (260), which is fixed to the mounting groove (103) and sleeved on the outside of the transmission shaft (210), and the two ends of the elastic reset member (250) abut against the bushing (260) and the limiting structure (211) respectively.

10. The fascia gun according to claim 1 or 2, characterized in that, The drive mechanism (300) further includes: A motor bracket (340) is provided in the receiving cavity (101), and the driving member (310) is fixed to the motor bracket (340).

11. The fascia gun according to claim 1 or 2, characterized in that, The first magnet (230) includes a strong neodymium magnet; and / or, the second magnet (320) includes a strong neodymium magnet.

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