An adjustable stroke structure and its fascia gun

Abstract

This utility model discloses an adjustable stroke structure and its fascia gun, relating to the field of fascia gun technology. This adjustable stroke structure and fascia gun, through adjusting the drive component to drive the transmission assembly to move the linkage closer to or away from the sliding seat, gradually reduces or increases the acute angle between the adjusting rod and the top surface of the sliding seat. Since the length of the adjusting rod is fixed, the adjusting rod drives the sliding seat to slide along the base in a direction away from or closer to the piston rod. This causes the distance between the central axis of the sliding seat and the central axis of the motor output end to gradually increase or decrease. Therefore, when the motor drives the base to rotate, the base drives the sliding seat to rotate, and the sliding seat drives the reciprocating linkage to have a larger or smaller stroke. This allows the reciprocating linkage to drive the piston rod and massage head to obtain a longer or shorter reciprocating stroke. Thus, the fascia gun can be adjusted according to the needs of different muscle groups, making it more versatile.

Description

Technical Field

[0001] This utility model relates to the field of fascia gun technology, and in particular to an adjustable stroke structure and its fascia gun. Background Technology

[0002] A fascia gun, also known as a deep myofascial impactor, is a soft tissue massage tool that relaxes the body's soft tissues through high-frequency impacts. Existing fascia guns use a piston to drive the massage head in a linear reciprocating motion. When the massage head contacts the body, it generates high-frequency vibrations that reach deep into the muscles, reducing local tissue tension, relieving pain, and promoting blood circulation.

[0003] The maximum distance of the reciprocating motion of the massage head is called the stroke of the fascia gun. The stroke is neither better the larger nor the smaller the better. Different strokes are suitable for different muscles. Using the corresponding stroke for different muscles can improve the massage effect and efficiency.

[0004] Existing fascia guns have a fixed stroke that cannot be adjusted to meet the needs of different muscle groups, resulting in poor applicability. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides an adjustable stroke structure and its fascia gun to solve the problems of the existing fascia gun having a constant stroke, being unable to be adjusted according to the needs of different muscle parts, and having poor applicability.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an adjustable stroke structure, comprising:

[0007] Base;

[0008] A sliding seat, which is slidably disposed on a base;

[0009] An adjustment mechanism, comprising a driving component, a transmission assembly, a linkage component, and an adjustment link, wherein the two ends of the adjustment link are respectively hinged to the linkage component and the sliding seat, and the included angle between the adjustment link and the top surface of the sliding seat is an acute angle or an obtuse angle;

[0010] When the driving component drives the transmission assembly to move the linkage component closer to or away from the sliding seat, the adjusting link drives the sliding seat to slide on the base.

[0011] Preferably, the transmission assembly includes a threaded post and a nut seat screwed onto the outer surface of the threaded post. The nut seat is detachably fixed to the driving component, and one end of the linkage component is connected to the threaded post via a first bearing.

[0012] A fascia gun includes the aforementioned adjustable stroke structure and a housing. A fixed base is fixed inside the housing, and a motor is fixed on the fixed base. The central axis of the transmission assembly coincides with the central axis of the motor output end. The output end of the motor is fixedly connected to a base. The central axis of the sliding seat is eccentrically set with respect to the output end of the motor. A reciprocating connecting rod is connected to the outer surface of the sliding seat through a second bearing. A piston rod is provided at one end of the reciprocating connecting rod.

[0013] Preferably, the driving component is a rotating cover, which is rotatably mounted on the top of the housing. The top surface of the rotating cover has a groove, and the rotating cover and the nut seat are fixed by screws. A sealing plate is provided in the groove.

[0014] Preferably, the outer surface of the threaded column is provided with a limiting block, the top surface of the fixed seat is provided with a guide, and the limiting block is slidably disposed on the outer surface of the guide.

[0015] Preferably, the two ends of the adjusting rod are connected to the linkage and the sliding seat respectively by pins, and the outer surface of the pin is provided with a shock-absorbing silicone sleeve.

[0016] Preferably, the housing contains a battery, which is electrically connected to the motor.

[0017] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0018] This invention, through adjusting the drive component to drive the transmission assembly and move the linkage closer to or away from the sliding seat, gradually reduces or increases the acute angle between the adjusting rod and the top surface of the sliding seat. Since the length of the adjusting rod is fixed, the adjusting rod drives the sliding seat to slide along the base in a direction away from or closer to the piston rod. As a result, the distance between the central axis of the sliding seat and the central axis of the motor output end gradually increases or decreases. Thus, when the motor drives the base to rotate, the base drives the sliding seat to rotate, and the sliding seat drives the reciprocating linkage to have a larger or smaller stroke. This allows the reciprocating linkage to drive the piston rod and massage head to obtain a longer or shorter reciprocating stroke. In this way, the fascia gun can be adjusted according to the needs of different muscle parts, making it more versatile. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Cross-sectional structural diagram;

[0021] Figure 3 This is a schematic diagram of the structure of the motor, fixed base, base, sliding base, adjusting mechanism, reciprocating connecting rod, sealing plate, guide component and limiting block of this utility model;

[0022] The components are as follows: 1. Housing; 2. Motor; 3. Fixing base; 31. Guide component; 4. Base; 5. Sliding seat; 6. Adjustment mechanism; 61. Driving component; 62. Nut seat; 63. Threaded column; 631. Limit block; 64. Linkage component; 65. Adjustment rod; 7. Reciprocating rod; 8. Sealing plate; 9. Battery. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model.

[0024] like Figures 1-3 As shown, this utility model provides an adjustable stroke structure, including a base 4, a sliding seat 5, and an adjustment mechanism 6;

[0025] The sliding seat 5 is slidably mounted on the base 4;

[0026] The adjustment mechanism 6 includes a driving component 61, a transmission assembly, a linkage component 64, and an adjustment link 65. The two ends of the adjustment link 65 are respectively hinged to the linkage component 64 and the sliding seat 5. The included angle between the adjustment link 65 and the top surface of the sliding seat 5 is an acute angle or an obtuse angle, ensuring that when the driving component 61 drives the transmission assembly to move the linkage component 64 closer to or away from the sliding seat 5, the adjustment link 65 drives the sliding seat 5 to slide on the base 4.

[0027] When the adjusting drive component 61 drives the transmission assembly to move the linkage component 64 closer to or further away from the sliding seat 5, the acute angle between the adjusting link 65 and the top surface of the sliding seat 5 gradually decreases or increases, which can cause the adjusting link 65 to drive the sliding seat 5 to slide on the base 4.

[0028] Specifically, when the above-mentioned adjustable stroke structure is applied to a fascia gun, the fascia gun includes the above-mentioned adjustable stroke structure, and also includes a housing 1. A fixed base 3 is fixed inside the housing 1, and a motor 2 is fixed on the fixed base 3. The central axis of the transmission component coincides with the central axis of the output end of the motor 2. The output end of the motor 2 is fixedly connected to the base 4. The central axis of the sliding seat 5 is eccentrically set with the output end of the motor 2. A reciprocating connecting rod 7 is connected to the outer surface of the sliding seat 5 through a second bearing. A piston rod is provided at one end of the reciprocating connecting rod 7, and a massage head is provided at the other end of the piston rod (the specific connection between the reciprocating connecting rod 7, the piston rod and the massage head is existing technology and will not be described in detail here).

[0029] The working principle of the fascia gun is to use a crank-slider mechanism consisting of a sliding seat 5, a reciprocating connecting rod 7 and a piston rod to convert the rotation of the motor 2 into the reciprocating motion of the piston rod.

[0030] When it is necessary to adjust the reciprocating stroke of the massage head, i.e., the piston rod, the adjusting drive component 61 drives the transmission assembly to move the linkage component 64 closer to the sliding seat 5. As a result, the acute angle between the adjusting link 65 and the top surface of the sliding seat 5 gradually decreases. Since the length of the adjusting link 65 is fixed, the adjusting link 65 will drive the sliding seat 5 to slide along the base 4 in a direction away from the piston rod. As a result, the distance between the central axis of the sliding seat 5 and the central axis of the output end of the motor 2 gradually increases. As a result, when the motor 2 drives the base 4 to rotate, the base 4 drives the sliding seat 5 to rotate. The sliding seat 5 drives the reciprocating link 7 to have a larger stroke, thereby the reciprocating link 7 drives the piston rod and the massage head to obtain a longer reciprocating stroke.

[0031] Conversely, when the adjusting drive component 61 drives the transmission assembly to move the linkage component 64 away from the sliding seat 5, the acute angle between the adjusting rod 65 and the top surface of the sliding seat 5 gradually increases. Since the length of the adjusting rod 65 is fixed, the adjusting rod 65 will drive the sliding seat 5 to slide along the base 4 towards the piston rod. As a result, the distance between the central axis of the sliding seat 5 and the central axis of the output end of the motor 2 gradually decreases. Thus, when the motor 2 drives the base 4 to rotate, the base 4 drives the sliding seat 5 to rotate. The sliding seat 5 drives the reciprocating linkage 7 to have a smaller stroke, thereby the reciprocating linkage 7 drives the piston rod and the massage head to obtain a shorter reciprocating stroke. In this way, the fascia gun can be adjusted according to the needs of different muscle parts, making it more versatile.

[0032] like Figure 2 and Figure 3 As shown, the transmission assembly includes a threaded post 63 and a nut seat 62 screwed onto the outer surface of the threaded post 63. The nut seat 62 is detachably fixed to the drive member 61, and one end of the linkage member 64 is connected to the threaded post 63 through a first bearing.

[0033] By adjusting the rotation of the drive component 61, it drives the nut seat 62 to rotate. Since the threaded column 63 and the nut seat 62 are screwed together, the threaded column 63 can move closer to or further away from the sliding seat 5 along the nut seat 62 when the drive nut seat 62 rotates in the forward or reverse direction.

[0034] Since the central axis of the transmission component coincides with the central axis of the output end of the motor 2, and one end of the linkage 64 is connected to the threaded column 63 through the first bearing, and the outer surface of the sliding seat 5 is connected to the reciprocating connecting rod 7 through the second bearing, and the two ends of the adjusting rod 65 are respectively hinged to the linkage 64 and the sliding seat 5, when the motor 2 drives the base 4 and the sliding seat 5 to rotate, the linkage 64 can also rotate together. Since the position of the sliding seat 5 is adjusted at this time, the distance between the linkage 64 and the sliding seat 5 is constant, so the adjusting rod 65 will not move, and the sliding seat 5 will not slide on the base 4 to change its position, ensuring the normal operation of the fascia gun.

[0035] like Figure 2 and Figure 3 As shown, the driving component 61 is a rotating cover, which is rotatably mounted on the top of the housing 1. A groove is provided on the top surface of the rotating cover. The rotating cover and the nut seat 62 are fixed by screws. A sealing plate 8 is provided in the groove.

[0036] By setting the drive unit 61 as a rotating cover and rotating it at the top of the housing 1, it is convenient for people to operate manually. By providing a groove on the top surface of the rotating cover, the screw can pass through the bottom surface of the groove to fix the rotating cover and the nut seat 62. The groove is closed by the sealing plate 8, which prevents the screw from protruding from the top surface of the rotating cover, thus avoiding affecting the overall appearance of the fascia gun. It also prevents the hand from touching the screw when the rotating cover is turned, thus avoiding injury to the hand.

[0037] The outer surface of the rotating lid has anti-slip texture, allowing for better gripping and rotation of the lid.

[0038] like Figure 3 As shown, a limiting block 631 is provided on the outer surface of the threaded column 63, and a guide 31 is provided on the top surface of the fixed seat 3. The limiting block 631 is slidably disposed on the outer surface of the guide 31.

[0039] By setting guide 31 and limit block 631, the threaded column 63 is limited, so that when the rotating cover drives the nut seat 62 to rotate, the threaded column 63 can stably move closer to or further away from the sliding seat 5 in a straight line.

[0040] The two ends of the adjusting rod 65 are respectively connected to the linkage 64 and the sliding seat 5 by pins, and the outer surface of the pin is provided with a shock-absorbing silicone sleeve.

[0041] The high elasticity of silicone can effectively buffer the instantaneous impact generated during hinge movement, avoid stress concentration leading to metal fatigue or fracture, suppress system resonance through damping characteristics, especially in high-speed or high-frequency motion scenarios, reduce the risk of structural damage, fill the gap between the pin and the hole wall, avoid direct metal-to-metal contact friction, reduce "squeaking" noise, and at the same time, as a soft medium, silicone sleeve can reduce the coefficient of friction and extend the life of components.

[0042] like Figure 2 As shown, a battery 9 is provided inside the housing 1. The battery 9 is electrically connected to the motor 2, and the battery 9 is used to supply power to the motor 2.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable stroke structure, characterized in that, include: Base (4); A sliding seat (5) is slidably disposed on a base (4); Adjustment mechanism (6), the adjustment mechanism (6) includes a driving member (61), a transmission assembly, a linkage member (64) and an adjustment link (65), the two ends of the adjustment link (65) are respectively hinged to the linkage member (64) and the sliding seat (5), and the included angle between the adjustment link (65) and the top surface of the sliding seat (5) is an acute angle or an obtuse angle; When the driving component (61) drives the transmission assembly to move the linkage component (64) closer to or away from the sliding seat (5), the adjusting link (65) drives the sliding seat (5) to slide on the base (4).

2. The adjustable stroke structure according to claim 1, characterized in that: The transmission assembly includes a threaded post (63) and a nut seat (62) screwed onto the outer surface of the threaded post (63). The nut seat (62) is detachably fixed to the drive member (61). One end of the linkage member (64) is connected to the threaded post (63) via a first bearing.

3. A fascia gun, characterized in that: The adjustable stroke structure according to claim 2 also includes a housing (1), a fixed seat (3) is fixed inside the housing (1), a motor (2) is fixed on the fixed seat (3), the central axis of the transmission assembly coincides with the central axis of the output end of the motor (2), the output end of the motor (2) is fixedly connected to the base (4), the central axis of the sliding seat (5) is eccentrically set with the output end of the motor (2), and a reciprocating connecting rod (7) is connected to the outer surface of the sliding seat (5) through a second bearing, and a piston rod is provided at one end of the reciprocating connecting rod (7).

4. A fascia gun according to claim 3, characterized in that: The driving component (61) is a rotating cover, which is rotatably mounted on the top of the housing (1). The top surface of the rotating cover has a groove, and the rotating cover and the nut seat (62) are fixed by screws. A sealing plate (8) is provided in the groove.

5. A fascia gun according to claim 3, characterized in that: The threaded post (63) has a limiting block (631) on its outer surface, and the fixed seat (3) has a guide (31) on its top surface. The limiting block (631) is slidably disposed on the outer surface of the guide (31).

6. A fascia gun according to claim 3, characterized in that: The two ends of the adjusting rod (65) are connected to the linkage (64) and the sliding seat (5) respectively by pins, and the outer surface of the pin is provided with a shock-absorbing silicone sleeve.

7. A fascia gun according to claim 3, characterized in that: The housing (1) contains a battery (9), which is electrically connected to the motor (2).

Images