A fascia gun and transmission mechanism thereof

Abstract

The utility model relates to fascia gun and transmission mechanism thereof, transmission mechanism includes transmission rod and adjustment head, transmission rod is connected with eccentric member of fascia gun, and one end of adjustment head is hinged with the other end of transmission rod, and the other end of adjustment head has the hinge joint hole, adjustment head can rotate around pivot in hinge joint hole, transmission rod can rotate relative to adjustment head, realized in a certain angle range self -adaptation relief transmission rod and the angle deviation between fascia gun's sleeve because of manufacturing or assembly, namely the utility model discloses can swing in horizontal direction with pivot as center through making adjustment head, transmission rod can also swing up and down relative to adjustment head, thereby multidimensional adaptation transmission rod's movement in horizontal direction, longitudinal, to reach the effect that self -adaptation relief transmission rod and the angle deviation between fascia gun's sleeve because of manufacturing or assembly, thereby reduced the requirement of production accuracy and assembly accuracy to transmission rod, also can reduce the impact and noise caused by movement deviation.

Description

Technical Field

[0001] This utility model relates to massage products, and in particular to a fascia gun and its transmission mechanism. Background Technology

[0002] As a common massage device, the transmission mechanism of a fascia gun is the core component for achieving its massage function. However, existing fascia gun transmission mechanisms (such as connecting rods) still have some shortcomings in design and application. For example, there are issues with the accuracy and noise of the connecting rod transmission. Because fascia guns require high precision in manufacturing and assembly, even slight deviations can lead to abnormal noise or unstable operation. Therefore, existing fascia guns generally use high-precision metal connecting rods. However, metal components have higher production costs and longer production cycles. Furthermore, if the connecting rod assembly deviates, it is prone to rigid collisions with other components during operation, generating significant noise or vibration. For instance, in utility model patent application number 202020402382.1, entitled "An Improved Fascia Gun," the motor runs at high speed when the fascia gun is started, causing the eccentric wheel to rotate synchronously. Driven by the eccentric wheel, the connecting rod will rigidly collide with its connected sleeve or pin, producing noticeable noise and vibration.

[0003] Moreover, some fascia guns use a straight metal connecting rod, with the eccentric part of the fascia gun set on the output shaft of the motor, and one end of the connecting rod connected to the eccentric part, making the connecting rod perpendicular to the motor. In order to accommodate the connection structure of the motor and the connecting rod, most existing fascia guns are L-shaped or T-shaped, which makes the overall size of the fascia gun large and inconvenient to carry and use. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a fascia gun and its transmission mechanism to solve the problems of high precision requirements and high noise in the transmission mechanism of the prior art.

[0005] To solve the above technical problems, the present invention adopts the following technical solution:

[0006] A transmission mechanism for a fascia gun, comprising:

[0007] The transmission rod has one end connected to the eccentric part of the fascia gun, so that one end of the transmission rod can rotate eccentrically with the eccentric part.

[0008] An adjusting head is pivotally connected at one end to the other end of the transmission rod, and the other end of the adjusting head has a pivot hole; the adjusting head can rotate about a pivot axis in the pivot hole, and the transmission rod can rotate relative to the adjusting head.

[0009] In the transmission mechanism of the fascia gun, the other end of the transmission rod is provided with a first pivot hole, one end of the adjusting head has two pivot parts, the pivot part has a second pivot hole, and the other end of the transmission rod is located between the two pivot parts and is pivotally connected to the pivot parts via a pivot; or, the other end of the transmission rod has two pivot parts, one end of the adjusting head is provided with a first pivot hole, the pivot part has a second pivot hole, and one end of the adjusting head is located between the two pivot parts and is pivotally connected to the pivot parts via a pivot; the pivot axis is orthogonal to the pivot axis.

[0010] In the transmission mechanism of the fascia gun, the other end of the adjusting head is provided with a ball head, and the ball head is provided with the pivot hole.

[0011] In the transmission mechanism of the fascia gun, the ball head is also provided with multiple buffer grooves, and each buffer groove is evenly distributed along the circumference of the pivot hole.

[0012] In the transmission mechanism of the fascia gun, the ball head is a flat ball head; the transmission mechanism also includes a sleeve and a sliding bushing, the ball head is located in the sleeve and connected to the sleeve through a pivot shaft, and the sliding bushing is sleeved outside the sleeve; a buffer sleeve is provided between the ball head and the pivot shaft.

[0013] In the transmission mechanism of the fascia gun, a notch is provided on the ball head, and the buffer groove located on the side of the transmission rod communicates with the notch.

[0014] In the transmission mechanism of the fascia gun, one end or the middle of the transmission rod has a bent portion.

[0015] In the transmission mechanism of the fascia gun, the transmission rod includes a first horizontal part, a vertical part, and a second horizontal part arranged sequentially.

[0016] In the transmission mechanism of the fascia gun, the transmission rod is a plastic transmission rod, and the adjustment head is a plastic adjustment head.

[0017] A fascia gun includes a motor and an eccentric component connected to the motor, and further includes a transmission mechanism as described in any of the above claims, wherein the transmission mechanism is rotatably connected to the eccentric component.

[0018] Compared to existing technologies, the transmission mechanism of the fascia gun provided by this utility model includes a transmission rod and an adjusting head. By employing a method where the adjusting head can rotate around a pivot axis in a pivot hole, and the transmission rod can rotate relative to the adjusting head, it achieves adaptive mitigation of angular misalignment between the transmission rod and the fascia gun sleeve within a certain angular range caused by manufacturing or assembly. For example, when dimensional tolerances or assembly precision deviations during the manufacturing of the transmission rod cause angular misalignment between the transmission rod and the design requirements, adaptive adjustment is achieved. In other words, this utility model allows the adjusting head to swing horizontally around the pivot axis, and also allows the transmission rod to swing up and down relative to the adjusting head. This adapts the movement of the transmission rod in multiple dimensions, including horizontal and vertical directions, to adaptively mitigate angular misalignment between the transmission rod and the fascia gun sleeve caused by manufacturing or assembly. This reduces the dependence on the manufacturing and assembly precision of the transmission rod and avoids rigid collisions between the transmission mechanism and other components on the fascia gun during movement, thereby reducing the impact and noise caused by movement misalignment and significantly improving product reliability and user experience. Attached Figure Description

[0019] Figure 1 A schematic diagram of the connection between the transmission mechanism and the eccentric component provided by this utility model.

[0020] Figure 2 A schematic diagram of the transmission mechanism provided by this utility model.

[0021] Figure 3 A schematic diagram of the transmission mechanism provided by this utility model, in which a sleeve is installed.

[0022] Figure 4 This is an exploded structural diagram of the transmission mechanism provided by this utility model.

[0023] Figure 5 A cross-sectional structural schematic diagram of the transmission mechanism provided by this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the buffer sleeve in the transmission mechanism provided by this utility model.

[0025] Figure 7 This is a schematic diagram of the fascia gun provided by this utility model.

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Buffer sleeve; 11. Base; 111. Through hole; 12. Elastic arm; 13. Arc-shaped groove; 15. Gap; 2. Transmission mechanism; 21. Pivot shaft; 22. Pivot hole; 23. Transmission rod; 231. Eccentric part mounting hole; 232. First pivot hole; 234. First transverse part; 235. Vertical part; 236. Second transverse part; 24. Sleeve; 20. Adjusting head; 202. Pivot part; 203. Second pivot hole; 25. Ball head; 26. Buffer groove; 27. Pivot; 28. Notch; 3. Motor; 4. Eccentric part; 41. Eccentric shaft; 5. Housing; 6. Battery; 51. Massage head; 7. Sliding bushing; 8. Anti-vibration sleeve. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] Please see Figure 1, Figure 2 , Figure 3 and Figure 4 The transmission mechanism 2 of the fascia gun provided by this utility model includes: a transmission rod 23 and an adjustment head 20. The transmission rod 23 is connected to the eccentric part 4 of the fascia gun, so that one end of the transmission rod 23 can rotate eccentrically with the eccentric shaft 41 of the eccentric part 4, that is, one end of the transmission rod 23 rotates with the eccentric shaft 41 of the eccentric part 4 as the center.

[0033] One end of the adjusting head 20 is pivotally connected to the other end of the transmission rod 23. The other end of the adjusting head 20 has a pivot hole 22, so that the adjusting head 20 can rotate around the pivot axis 21 in the pivot hole 22. For example, after the fascia gun is assembled, the adjusting head 20 can swing in the first direction (such as the horizontal or transverse direction) with the pivot axis 21 as the center of rotation within the sleeve of the fascia gun. The transmission rod 23 can swing relative to the adjusting head 20 in the second direction (such as the longitudinal direction) to adapt to the angular deviation of the transmission rod 23 during movement. For example, due to dimensional tolerances or assembly precision deviations during the manufacturing of the transmission rod, the transmission rod may deviate from the design requirements (such as the motion path or ideal motion state required in the design) during movement. The novel design allows the adjusting head 20 to swing horizontally around the pivot axis 21 (e.g., within ±10 degrees in the horizontal direction), and the transmission rod 23 to swing up and down relative to the adjusting head 20 around the pivot axis 27. This multi-dimensional adaptation of the transmission rod 23 in the horizontal and vertical directions achieves adaptive mitigation of angular misalignment between the transmission rod and the fascia gun sleeve caused by manufacturing or assembly. This reduces reliance on the production and assembly precision of the transmission rod 23. Furthermore, the adaptive motion misalignment prevents collisions between the transmission mechanism 2 and other components on the fascia gun, reducing noise during operation and significantly improving product reliability and user experience.

[0034] Specifically, one end of the transmission rod 23 is provided with an eccentric mounting hole 231, and the other end of the transmission rod 23 is provided with a first pivot hole 232. The pivot shaft 21 and the pivot shaft 27 are orthogonal in space, ensuring the degree of freedom of movement of the transmission rod 23 in two directions.

[0035] Please continue reading. Figures 1 to 4One end of the adjusting head 20 has two pivot parts 202, and the pivot parts 202 have a second pivot hole 203. The other end of the transmission rod 23 is located between the two pivot parts 202 and is pivotally connected to the pivot parts 202 through a pivot 27. In this embodiment, the setting of clamping the other end of the transmission rod 23 with the two pivot parts 202 not only serves to position the other end of the transmission rod 23, but also effectively limits the lateral swing of the transmission rod 23, making the transmission rod 23 stable during operation and avoiding vibration of the fascia gun caused by excessive swing of the other end of the transmission rod 23.

[0036] In other embodiments, the connection between the transmission rod 23 and the adjusting head 20 can also be as follows: one end of the transmission rod 23 is provided with an eccentric mounting hole, and the other end of the transmission rod 23 has two pivot parts. One end of the adjusting head 20 is provided with a first pivot hole, and the pivot part is provided with a second pivot hole. One end of the adjusting head 20 is located between the two pivot parts and is pivotally connected to the pivot parts through a pivot. That is, the pivot structure of the transmission rod 23 and the adjusting head 20 can be interchanged. As long as the transmission rod 23 and the adjusting head 20 can be pivotally connected and can rotate relative to the adjusting head 20 within a certain angle range (such as within ±10 degrees in the Z-axis direction), this utility model does not limit the connection method between the two.

[0037] Specifically, one end or the middle of the transmission rod 23 has two or more bends, so that the transmission rod 23 has a first transverse portion 234, a vertical portion 235, and a second transverse portion 236 arranged sequentially, that is, the transmission rod 23 is generally Z-shaped. The eccentric mounting hole 231 is provided on the first transverse portion 234 and is a vertical hole (with... Figure 2 From the perspective of (the first pivot hole 232), the first pivot hole 232 is disposed on the second transverse portion 236, and is a transverse hole (in the view of). Figure 2 From the perspective of the first horizontal part 234, the vertical part 235 and the second horizontal part 236, the transmission rod 23 is pivotally connected in the horizontal (i.e., horizontal direction) and longitudinal (i.e., Z-axis direction) directions. The transmission rod adopts a Z-shaped bending structure, which extends from the middle of the motor to one side, optimizes the horizontal space layout, effectively avoids the space occupation conflict of components such as motor and battery, and further reduces the overall size of the machine. It provides a structural basis for the thin and lightweight design of fascia gun, which is conducive to the miniaturization of fascia gun. Moreover, the shape of fascia gun is no longer limited to L-shaped or T-shaped. The present invention adopts a Z-shaped connecting rod, which can avoid the limitation of the shape of fascia gun. It can be set as a disc shape, a square shape, etc. For example, when a disc shape is used, the diameter of fascia gun can be reduced to less than 8 cm and the thickness is about 2 cm.

[0038] In this embodiment, the transmission rod 23 is a plastic transmission rod or a metal transmission rod; the adjusting head 20 is a plastic adjusting head or a metal adjusting head. Preferably, this invention is made of injection-molded plastic material. Compared to metal transmission rods and metal adjusting heads, it has a shorter production cycle, lower production cost, and reduces the overall weight of the fascia gun. Furthermore, plastic materials produce relatively lower noise even in the event of a collision compared to metal materials. Optionally, the transmission rod 23 and the adjusting head 20 are made of high-strength engineering plastics, such as POM plastic or PA66 plastic.

[0039] Please continue reading. Figure 1 and Figure 3 The other end of the adjusting head 20 is provided with a ball head 25, which has a pivot hole 22. A pivot shaft 21 is inserted into the pivot hole 22 to connect the ball head 25 to the transmission rod 23. Through the pivot connection between the ball head 25 and the pivot shaft 21, the adjusting head 20 can swing horizontally around the pivot shaft 21. After the ball head 25 is installed in the sleeve, the height of the other end of the adjusting head is also determined. The transmission rod 23 can swing relative to the adjusting head in the Z-axis direction to achieve three-dimensional rotation to adapt to the angular deviation caused by the assembly and manufacturing precision deviation of the transmission rod 23 during movement. This avoids rigid collision between the adjusting head 20 and other parts of the fascia gun (such as the sleeve 24 or the pivot shaft 21), reduces the noise of the fascia gun during operation, and reduces the assembly and manufacturing precision requirements of the transmission rod 23, resulting in a low scrap rate of parts, fast assembly speed, and improved production efficiency.

[0040] Furthermore, the transmission mechanism 2 also includes a sleeve 24 and a sliding bushing 7. The surface of the sleeve 24 in contact with the sliding bushing 7 is a smooth surface to ensure smooth sliding. The ball head 25 is located in the sleeve 24 and connected to the sleeve 24 via a pivot shaft 21. That is, the ball head 25 can swing left and right within a certain angle range in the sleeve 24. It is also sleeved outside the sleeve 24 via the sliding bushing 7. Since the sliding bushing 7 is stationary relative to the outer shell of the fascia gun, the sleeve 24 can slide back and forth in the sliding bushing 7, thereby controlling the sleeve 24 to perform reciprocating extension and retraction. That is, when the eccentric member 4 makes a circular motion, one end of the transmission rod 23 rotates with the eccentric member 4 around the axis of the motor, and the other end of the transmission rod 23 swings around the pivot shaft 21 via the adjusting head 20 to compensate for the angular offset in the horizontal direction and convert the radial component of the circular motion into the linear reciprocating motion of the massage head, thereby controlling the reciprocating contraction or extension of the massage head connected to it.

[0041] Please see Figures 1 to 6A buffer sleeve 1 is provided between the ball head 25 and the pivot shaft 21. The buffer sleeve 1 absorbs the impact force of the adjusting head 20 on the pivot shaft 21 and the sleeve 24 during the operation of the transmission rod 23, further reducing noise and preventing damage to components such as the adjusting head 20, the pivot shaft 21, and the sleeve 24. When the eccentric part 4 drives the transmission rod 23 to reciprocate, it drives the massage head 51 to flexibly reciprocate within the sliding bushing 7 to achieve a massage effect. Moreover, the sliding bushing 7 can effectively prevent the pivot shaft 21 from falling off during the movement, ensuring the stability and reliability of the transmission mechanism 2.

[0042] The ball head 25 is a flat ball head. Since both ends of the buffer sleeve 1 extend out of the pivot hole 22 when the buffer sleeve 1 is installed, it can better position the buffer sleeve 1 and prevent displacement of the buffer sleeve 1, thereby ensuring the accuracy and stability of the transmission. Designing the ball head 25 as a flat structure not only facilitates the circular motion of the other end of the transmission rod 23, but also adapts to the angular displacement of the transmission rod 23 in the horizontal direction during movement. It also makes the fascia gun structure highly integrated, facilitating structural compactness and contributing to the miniaturization of the equipment.

[0043] Preferably, the buffer sleeve 1 can be a wear-resistant buffer sleeve, which can be made of TPU, silicone, rubber, etc. The buffer sleeve 1 includes: a base 11 and at least one elastic arm 12. The base 11 has a through hole 111 for the pivot shaft 21 to pass through. The elastic arm 12 extends from the base 11 toward the axis of the through hole 111, and each elastic arm 12 is located outside the through hole 111 and arranged around the through hole 111.

[0044] When the fascia gun is running, the transmission mechanism 2 is driven by the motor 3 to reciprocate. During the reciprocating stroke of the transmission mechanism 2, the pivot shaft 21 contacts the elastic arm 12 and applies pressure, causing the elastic arm 12 to deform and avoid it. That is, the elastic arm 12 is compressed and deformed towards the outside of the through hole 111, thereby converting the rigid impact between the pivot shaft 21 and the elastic arm 12 into the flattening deformation of the elastic arm 12. During the deformation process, the elastic arm's buffering effect is used to attenuate the impact force of the pivot shaft, so that most of the impact energy is absorbed and released at the moment of squeezing the elastic arm, reducing the noise when the fascia gun is working. When the pressure of the pivot shaft 21 on the elastic arm 12 is released, the elastic arm automatically resets, maintaining structural stability. At the same time, it extends the life of the buffer sleeve 1, the pivot shaft 21, and the transmission mechanism 2, thereby reducing after-sales maintenance costs and enhancing the product's market competitiveness.

[0045] Please continue reading. Figures 4 to 6The inner side of the elastic arm 12 has an arc-shaped groove 13 that matches the curvature of the outer circumferential surface of the pivot shaft 21, so that the inner side of the elastic arm 12 can fully fit with the outer circumference of the pivot shaft 21. In motion, this can prevent the pivot shaft 21 from shaking and producing abnormal noise, and also reduce the friction between the pivot shaft 21 and the inner side of the elastic arm 12. This is beneficial to reduce the resistance of the pivot shaft 21 rotation in high-frequency reciprocating motion, reduce the wear of the buffer sleeve 1, and further improve the smoothness and quietness of the fascia gun during operation.

[0046] The elastic arm 12 is embedded in the pivot hole 22 of the transmission mechanism 2. Under normal conditions, the presence of the elastic arm 12 creates a gap 15 (e.g., 0.3mm) between the pivot shaft 21 and the pivot hole 22. This partial location of the elastic arm 12 within the pivot hole 22 provides space for deformation and avoids abnormal noise caused by rigid contact between the pivot shaft 21 and the pivot hole 22, thus preventing damage to the pivot shaft 21 and the connecting rod of the transmission mechanism 2. During operation, even if the elastic arm 12 is completely compressed and deformed to the point where the pivot shaft 21 directly contacts the transmission rod 23 rigidly, the impact force is minimal because the elastic arm 12 has released most of the impact energy beforehand, making it unlikely to cause abnormal noise or damage to parts.

[0047] like Figure 2 and Figure 4 As shown, the ball head 25 is also provided with multiple buffer grooves 26. Each buffer groove 26 is an arc-shaped buffer groove evenly distributed along the circumference of the pivot hole 22 and communicates with the pivot hole 22. The elastic arm 12 is inserted through the buffer groove 26 to achieve radial limiting, so that the elastic arm 12 will not be displaced when it is deformed under pressure or reset under pressure.

[0048] Furthermore, a notch 28 is provided on the ball head 25, and the buffer groove 26 located on the side of the transmission rod 23 communicates with the notch 28. The notch 28 is located on one side of the transmission rod 23. When the transmission rod 23 pushes the pivot shaft 33 during its movement, it can reduce the local stiffness of the ball head 25. When the transmission rod 23 pushes, it can increase the deformation of the elastic arm 12 located at the notch 28, thus avoiding excessive compression and wear of the elastic arm 12.

[0049] Based on the transmission mechanism 2 of the aforementioned fascia gun, this utility model also provides a corresponding fascia gun (such as...). Figure 7As shown, the fascia gun includes a motor 3, an eccentric component 4 rotatably connected to the motor 3, a massage head 51, and a transmission mechanism 2. The two ends of the transmission mechanism 2 are connected to the eccentric component 4 and the massage head 51, respectively. When the motor 3 starts and drives the eccentric wheel 4 to rotate, the transmission mechanism 2 is driven accordingly, thereby driving the massage head 51 to perform reciprocating extension and retraction movements, achieving an ideal massage effect while ensuring smooth and powerful movement of the massage head 51. This invention, through the transmission mechanism 2 of the fascia gun, enables the fascia gun to achieve advantages such as reduced noise and lower after-sales maintenance costs. Since the transmission mechanism 2 and its buffer sleeve 1 have already been described in detail above, they will not be repeated here.

[0050] The fascia gun also includes a battery 6 and a housing 5. The housing 5 covers the transmission mechanism 2, serving both protective and aesthetic purposes. Two batteries 6 can be used, respectively located on both sides of the transmission rod 23. Using two batteries increases the fascia gun's runtime and reduces charging frequency. Preferably, a shock-absorbing sleeve 8 is also provided between the sliding bushing 7 and the housing 5. The shock-absorbing sleeve 8 covers the outside of the sliding bushing 7, preventing displacement of the sliding bushing 7 and isolating it from the housing. It also further reduces vibration, preventing excessive vibration during operation and ensuring a better user experience.

[0051] Specifically, the shock-absorbing sleeve 8 is made of silicone, a material with excellent shock absorption properties that effectively absorbs vibrations generated by the fascia gun during operation, preventing excessive vibrations from affecting the user experience. At the same time, the silicone shock-absorbing sleeve 8 also has good flexibility and adaptability, reducing assembly precision requirements and improving production efficiency and product quality.

[0052] In summary, this invention allows the ball head to swing within the sleeve (e.g., swing left and right) around the pivot axis, while the elastic arm of the buffer sleeve slides along the arc-shaped buffer groove and is radially limited, enabling the transmission chain to adaptively adjust within a small angle and position deviation range. The transmission rod adopts a three-section bending structure, further reducing the precision requirements for coaxiality between the motor, eccentric parts, and massage head, thereby relaxing the dimensional tolerances and assembly precision requirements of each component and reducing production costs.

[0053] Meanwhile, by setting a buffer sleeve with an elastic arm between the ball head and the sleeve, elastic deformation is generated under impact load, absorbing and attenuating the impact energy in the transmission chain; at the same time, the transmission rod and buffer head made of plastic material are used to significantly reduce rigid collisions, and in conjunction with the silicone anti-vibration sleeve set between the sliding bushing and the housing, vibration transmission is effectively blocked, so as to achieve low noise and low vibration operation of the whole machine and improve user comfort.

[0054] Moreover, the flat ball head design reduces the thickness dimension, and combined with the Z-shaped bending transmission rod structure, it avoids the space occupied by the battery and motor, making the overall layout more compact and providing a structural basis for the thinner and lighter design of the fascia gun.

[0055] Furthermore, the transmission rod and buffer head are made of injection-molded plastic parts instead of traditional metal parts, eliminating the need for high-precision machining and post-processing. This results in a shorter molding cycle, lower material costs, and suitability for mass production, significantly reducing the overall material and processing costs of the machine.

[0056] In addition, the interlocking structure of the elastic arm and the arc-shaped buffer groove can prevent the buffer sleeve from shifting or falling off during high-frequency reciprocating motion; the local notch of the ball head can increase the deformation of the elastic arm on one side, reduce stress concentration and wear, extend the service life of the buffer assembly and supporting parts, and thus improve the overall reliability of the machine.

[0057] It is understood that those skilled in the art can make equivalent substitutions or modifications based on the technical solution and inventive concept of this utility model, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. A transmission mechanism for a fascia gun, characterized in that, include: The transmission rod (23) is connected at one end to the eccentric part (4) of the fascia gun, so that one end of the transmission rod (23) can rotate eccentrically with the eccentric part (4); An adjusting head (20) is pivotally connected at one end to the other end of the transmission rod (23), and the other end of the adjusting head (20) has a pivot hole (22); the adjusting head (20) can rotate about the pivot axis (21) in the pivot hole (22), and the transmission rod (23) can rotate relative to the adjusting head (20).

2. The transmission mechanism of the fascia gun according to claim 1, characterized in that, The other end of the transmission rod (23) is provided with a first pivot hole (232), and one end of the adjusting head (20) has two pivot parts (202). The pivot part (202) is provided with a second pivot hole (203). The other end of the transmission rod (23) is located between the two pivot parts (202) and is pivotally connected to the pivot part (202) through a pivot (27); or, the other end of the transmission rod (23) has two pivot parts (202), one end of the adjusting head (20) is provided with a first pivot hole (232), and the pivot part (202) is provided with a second pivot hole (203). One end of the adjusting head (20) is located between the two pivot parts (202) and is pivotally connected to the pivot part (202) through a pivot (27); the pivot axis (21) is orthogonal to the pivot axis (27).

3. The transmission mechanism of the fascia gun according to claim 1, characterized in that, The other end of the adjusting head (20) is provided with a ball head (25), and the ball head (25) is provided with the pivot hole (22).

4. The transmission mechanism of the fascia gun according to claim 3, characterized in that, The ball head (25) is also provided with multiple buffer grooves (26), and each buffer groove (26) is evenly distributed along the circumference of the pivot hole (22).

5. The transmission mechanism of the fascia gun according to claim 4, characterized in that, The ball head (25) is a flat ball head (25); the transmission mechanism also includes a sleeve (24) and a sliding bushing (7), the ball head (25) is located in the sleeve (24) and connected to the sleeve (24) through a pivot shaft (21), and the sliding bushing (7) is sleeved on the outside of the sleeve (24); a buffer sleeve (1) is provided between the ball head (25) and the pivot shaft (21).

6. The transmission mechanism of the fascia gun according to claim 4, characterized in that, The ball head (25) is provided with a notch (28), and the buffer groove (26) located on the side of the transmission rod (23) is connected to the notch (28).

7. The transmission mechanism of the fascia gun according to claim 1, characterized in that, The transmission rod (23) has a bent portion at one end or in the middle.

8. The transmission mechanism of the fascia gun according to any one of claims 1-6, characterized in that, The transmission rod (23) includes a first horizontal part (234), a vertical part (235), and a second horizontal part (236) arranged in sequence.

9. The transmission mechanism of the fascia gun according to claim 1, characterized in that, The transmission rod (23) is a plastic transmission rod or a metal transmission rod, and the adjusting head (20) is a plastic adjusting head or a metal adjusting head.

10. A fascia gun, comprising a motor (3), an eccentric component (4) connected to the motor (3), and a massage head (51), characterized in that, It also includes a transmission mechanism (2) as described in any one of claims 1-9, wherein the two ends of the transmission mechanism (2) are respectively connected to the eccentric member (4) and the massage head (51).

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