Fascia gun capable of adjusting vibration amplitude

Abstract

The fascia gun comprises a massage head, a transmission rod and a shell, the massage head is connected to the outer end of the transmission rod, the transmission rod is slidably connected into the shell, and the fascia gun is characterized in that a motor is arranged in the shell, an output shaft of the motor is connected with an adjusting block, and the thicknesses of the adjusting block at different axial positions are different; the axis of the transmission rod is not parallel to that of the adjusting block; the transmission rod is sleeved with a first spring, and the two ends of the first spring are connected to the transmission rod and the shell correspondingly so that the tail end of the transmission rod can abut against the side wall of the adjusting block. A stroke adjusting mechanism is arranged on the shell and used for axially moving the motor, and a cavity allowing the motor and the adjusting block to axially move and allowing the adjusting block to rotate is formed in the shell. The fascia gun not only can adjust the vibration frequency, but also can adjust the amplitude, and is simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of massage equipment, and in particular relates to a fascia gun with adjustable vibration amplitude. Background Art

[0002] The fascia gun, also known as the deep myofascial impactor, is a soft tissue rehabilitation tool that relaxes the body's soft tissues through high-frequency impacts. The fascia gun can be understood as a civilian version of the DMS (electric deep muscle stimulator). The vibration frequency will change during use, and the basic function is similar to that of the DMS. When using the fascia gun, you must pay attention to the method and method. At the same time, the first use of the fascia gun needs to be under the guidance of a professional, and it is best to proceed step by step, otherwise it may cause damage. Most of the existing fascia guns can only adjust the vibration frequency, but not the amplitude.

[0003] The Chinese utility model patent with publication number CN219071196U discloses a fascia gun with variable amplitude, including a motor, an eccentricity adjustment assembly with an eccentric shaft, a connecting rod and a piston rod, one end of the connecting rod is rotatably connected to the aforementioned eccentric shaft, and the other end of the connecting rod is rotatably connected to the piston rod; the eccentricity adjustment assembly includes a sliding bevel and an eccentric slider structure with an eccentric shaft, the motor output shaft of the motor is threadedly connected to the sliding bevel, and the sliding bevel slides on the eccentric slider structure under the drive of the motor and pushes the eccentric slider structure to move perpendicular to the direction of the motor output shaft. The utility model is suitable for use in occasions where the fascia gun has a variable amplitude.

[0004] Although the above-mentioned fascia gun can achieve amplitude adjustment, the overall structure of the device is complex and the manufacturing cost is high, which is not conducive to popularization and application. Summary of the invention

[0005] The purpose of the utility model is to solve the problems mentioned in the background technology and to provide a fascia gun with adjustable vibration amplitude, which can not only adjust the vibration frequency but also adjust the amplitude, and has a simple structure and low manufacturing cost.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is:

[0007] A fascia gun with adjustable vibration amplitude comprises a massage head, a transmission rod and a shell, wherein the massage head is connected to the outer end of the transmission rod, the transmission rod is slidably connected in the shell, a motor is arranged inside the shell, an adjustment block is connected to the motor output shaft, and the thickness of the adjustment block is different at different axial positions; any radial cross-section of the adjustment block is non-circular; the axis of the transmission rod is not parallel to the axis of the adjustment block; a first spring is sleeved on the outer sleeve of the transmission rod, and the two ends of the first spring are respectively connected to the transmission rod and the shell for making the end of the transmission rod contact with the side wall of the adjustment block; a stroke adjustment mechanism is arranged on the shell for axially moving the motor, and a power supply motor and a cavity for axial movement and rotation of the adjustment block are arranged in the shell.

[0008] Preferably, the housing is provided with a slideway matching the transmission rod, the transmission rod is provided with a first radial protrusion ring, the outer end of the slideway is provided with a second radial protrusion ring extending inwardly, and the two ends of the first spring are respectively connected to the two protrusion rings.

[0009] Preferably, the adjusting block is flat, and the edge of the side wall of the adjusting block is arc-shaped.

[0010] Preferably, the adjustment block is in the shape of a prism, and rounded chamfers are provided on the side edges of the prism.

[0011] Preferably, the axis of the adjustment block is perpendicular to the axis of the transmission rod.

[0012] Preferably, the stroke adjustment mechanism includes a mounting cylinder and an adjustment cylinder, the motor is slidably connected in the mounting cylinder, a plurality of protrusions are provided on the side wall of the motor, the side wall of the mounting cylinder is provided with through grooves matching the protrusions, and the adjustment cylinder is rotatably connected to the outside of the mounting cylinder; the inner wall of the adjustment cylinder and the outer wall of the protrusions are provided with threads matching each other.

[0013] Preferably, a sleeve is detachably connected to the outside of the motor, and the protruding block is arranged on the sleeve.

[0014] Preferably, the adjustment mechanism includes a mounting tube, the motor is slidably connected inside the mounting tube, the motor side wall is connected to a snap block via a second spring, the outer end of the snap block is hemispherical; the mounting tube is provided with a plurality of snap holes matching the snap block.

[0015] Preferably, a rotary rheostat is provided in the housing, an adjusting knob is rotatably connected to the outside of the housing, and the adjusting knob is connected to the rotary rheostat; a battery is provided in the housing, and the rotary rheostat is electrically connected between the motor and the battery.

[0016] Preferably, a contact rod is provided at the inner end of the transmission rod, the contact rod is in contact with the side wall of the adjustment block, and the inner end of the contact rod is hemispherical.

[0017] The beneficial effects of the utility model are:

[0018] The fascia gun drives the adjusting block to rotate by a motor, and any radial cross-section of the adjusting block is non-circular, that is, during the process of rotating the adjusting rod, the distance between the side wall of the adjusting block and the end of the transmission rod abutting against it also changes, thereby driving the transmission rod to move back and forth to form vibration, and the motor and the adjusting block can be moved axially through the stroke adjustment mechanism, and the thickness of the adjusting block at different axial positions is different, so that after the axial movement, the amplitude of the distance change of the adjusting block relative to the initial position of the end of the transmission rod during the rotation process is also different, thereby realizing the adjustment of the amplitude of the fascia gun; that is, the present device can realize the adjustment of the amplitude of the fascia gun only by setting adjusting blocks and stroke adjustment mechanisms with different thicknesses, and the position adjustment structure is also a relatively conventional structure. Both the adjusting block and the stroke adjustment mechanism are much simpler than the existing technical structure, easier to process and manufacture, and reduce the cost, which is conducive to the promotion of fascia guns with adjustable amplitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the fascia gun;

[0020] Figure 2 This is a front cross-sectional view of the fascia gun;

[0021] Figure 3 It is a partial cross-sectional view of the front end of the fascia gun;

[0022] Figure 4 It is a schematic diagram of the exploded structure of the stroke adjustment mechanism;

[0023] Figure 5 It is a front sectional view of the stroke adjustment mechanism.

[0024] Label names in the figure:

[0025] 1. Massage head, 2. Transmission rod, 3. Housing, 4. Motor, 5. Adjustment block, 6. First radial raised ring, 7. Second radial raised ring, 8. Mounting cylinder, 9. Adjustment cylinder, 10. Raised block, 11. Sleeve, 12. Rotary rheostat, 13. Adjustment knob, 14. Battery, 15. Contact rod, 16. First spring. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.

[0027] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back", etc. used in the utility model are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0028] Embodiment 1

[0029] like Figure 1-5 The present application provides a fascia gun with adjustable vibration amplitude, comprising a massage head 1, a transmission rod 2 and a shell 3, wherein the massage head 1 is detachably connected to the outer end of the transmission rod 2, the transmission rod 2 is slidably connected in the shell 3, the shell 3 is provided with a slideway matching the transmission rod 2, the transmission rod 2 is provided with a first radial protrusion ring 6, the outer end of the slideway is provided with a second radial protrusion ring 7 extending inward, the transmission rod 2 is provided with a first spring 16, the two ends of the first spring 16 are respectively connected to the two protrusion rings, the first spring 16 always pushes the end of the transmission rod 2 to the rear end of the shell 3, ensuring that the end of the transmission rod 2 is kept in contact with the side wall of the adjustment block 5 (the adjustment block 5 will be described in detail below).

[0030] A motor 4 is provided inside the housing 3, and an adjusting block 5 is connected to the output shaft of the motor 4, and the end of the transmission rod 2 is in contact with the side wall of the adjusting block 5; the thickness of the adjusting block 5 at different axial positions is different, in the direction shown in the accompanying drawing (the axis of the adjusting block 5 is vertically arranged), that is, the thickness of the adjusting block 5 at different heights is different, so that when the position where the end of the transmission rod 2 is in contact with the adjusting block 5 is at different heights, the amplitude of the distance between the side wall of the adjusting block 5 and the end of the transmission rod 2 will also change during the rotation of the adjusting block 5, thereby adjusting the amplitude of the transmission rod 2 (that is, the amplitude of the fascia gun) by adjusting the height (axial position) of the adjusting block 5.

[0031] The axes of the transmission rod 2 and the adjustment block 5 are preferably arranged vertically (note that the axis of the adjustment block 5 cannot be arranged parallel to the axis of the transmission rod 2, otherwise the transmission rod 2 cannot be driven to vibrate by the rotation of the adjustment block 5). This can reduce the overall size of the shell 3 and further control the manufacturing cost. If the axes of the transmission rod 2 and the adjustment block 5 are arranged in a non-vertical manner, although the vibration and amplitude adjustment functions can also be achieved, a larger cavity must be reserved inside the shell 3 for the rotation of the adjustment block 5, and the overall size will also increase, increasing the manufacturing cost.

[0032] When the axes of the transmission rod 2 and the adjusting block 5 are preferably arranged perpendicularly, any radial cross-section of the adjusting block 5 is non-circular (when the axes of the transmission rod 2 and the adjusting block 5 are neither perpendicular nor parallel), and the specific adjusting block 5 can be flat, elliptical or prism-shaped (if it is prism-shaped, the fewer edges of the bottom surface of the prism, the better) (regardless of the shape of the adjusting block 5, the thickness of different heights is still different), as long as its radial cross-section is non-circular, when the adjusting block 5 is driven by the motor 4 to rotate, the distance between the side wall of the adjusting block 5 and the end of the transmission rod 2 will change, so that as the adjusting block 5 rotates, the transmission rod 2 will slide back and forth in the slide 4 to form vibration, thereby driving the massage head 1 to vibrate and massage the human body; if the radial cross-section of the adjusting block 5 is circular, then no matter how the adjusting block 5 rotates, the distance between its side wall and the end of the transmission rod 2 remains unchanged, and no vibration can be formed.

[0033] When the side wall of the adjusting block 5 has corners, it is preferred to provide rounded chamfers.

[0034] The housing 3 is provided with a stroke adjustment mechanism for axially moving the motor 4 , and the stroke adjustment structure is a part of the housing 3 . The housing 3 is provided with a cavity for axially moving the power supply machine 4 and the adjustment block 5 .

[0035] The stroke adjustment mechanism includes a mounting tube 8 and an adjustment tube 9. The mounting tube 8 is arranged at the bottom of the shell 3 near the rear end, and the mounting tube 8 is equivalent to the gripping handle of the fascia gun; the motor 4 is slidably connected in the mounting tube 8, and a sleeve 11 is detachably connected to the outside of the motor 4 (the sleeve 11 may also be not arranged), and the outer wall of the sleeve 11 is provided with a plurality of protrusions 10, and the side wall of the mounting tube 8 is provided with a through groove matching the protrusions 10, and the adjustment tube 9 is rotatably connected to the outside of the mounting tube 8; the inner wall of the adjusting tube 9 and the outer wall of the protrusion 10 are provided with matching threads, and by rotating the adjusting tube 9, the protrusion 10 drives the sleeve 11 and then drives the motor 4 and the adjustment block 5 to move up and down (axially move) in the mounting tube 8, so that the position where the end of the transmission rod 2 is against the adjustment block 5 is at a different axial position of the adjustment block 5, and the thickness of the adjustment block 5 at different axial positions is different, so that the amplitude of the transmission rod 2 can be adjusted (the specific principle has been described in detail above).

[0036] A rotary rheostat 12 is provided at the rear end of the shell 3, and an adjusting knob 13 is rotatably connected to the outside of the shell 3. The adjusting knob 13 is connected to the rotary rheostat 12, and the resistance of the rotary rheostat 12 is adjusted by the adjusting knob 13; a battery 14 is provided in the shell 3, and the battery 14 is arranged at the bottom of the mounting tube 8. Specifically, a sleeve shell matching the battery 14 can be added at the bottom of the mounting tube 8, and the battery 14 is installed in the sleeve shell, and the battery 14 is located below the motor 4.

[0037] The rotary rheostat 12 is electrically connected between the motor 4 and the battery 14 , so that the current of the motor 4 can be adjusted by adjusting the resistance of the rotary rheostat 12 , thereby adjusting its rotation speed, and thus adjusting the vibration frequency of the fascia gun.

[0038] The inner end of the transmission rod 2 is detachably provided with a contact rod 15, which is in contact with the side wall of the adjustment block 5, and the inner end of the contact rod 15 is hemispherical. The contact rod 15 is provided because it is easily damaged due to long-term sliding friction with the adjustment block 5 and reciprocating left and right vibration during use. If it is damaged during long-term use, the contact rod 15 can be directly replaced without replacing the entire transmission rod 2.

[0039] Embodiment 2

[0040] The similarities with the first embodiment are not repeated here, and the only difference is (the structure of this embodiment is not shown in the drawings): the stroke adjustment mechanism includes a mounting tube 8, the motor 4 is slidably connected to the mounting tube 8, the side wall of the motor 4 is connected to a snap block via a second spring, and the outer end of the snap block is hemispherical; the mounting tube 8 is provided with a plurality of snap holes matching the snap blocks, and the axial displacement of the motor 4 is achieved by snapping the snap blocks into the snap holes at different heights. This height adjustment structure is common in various medical crutches and belongs to the prior art, so it is not shown in the drawings.

[0041] It should be noted that the stroke adjustment mechanism may be other structures besides the structures of the above two embodiments, as long as the axial displacement of the adjustment block 5 can be achieved.

[0042] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the utility model.

Claims

1. A fascia gun with adjustable vibration amplitude, comprising a massage head (1), a transmission rod (2) and a housing (3), wherein the massage head (1) is connected to the outer end of the transmission rod (2), and the transmission rod (2) is slidably connected in the housing (3), characterized in that: A motor (4) is arranged inside the housing (3); an output shaft of the motor (4) is connected to an adjustment block (5); the thickness of the adjustment block (5) is different at different axial positions; the axis of the transmission rod (2) is not parallel to the axis of the adjustment block (5); a first spring (16) is sleeved outside the transmission rod (2); two ends of the first spring (16) are respectively connected to the transmission rod (2) and the housing (3) for making the end of the transmission rod (2) contact with the side wall of the adjustment block (5); a stroke adjustment mechanism is arranged on the housing (3) for axially moving the motor (4); a cavity is arranged inside the housing (3) for axially moving the power supply motor (4) and the adjustment block (5) and for rotating the adjustment block (5).

2. The fascia gun with adjustable vibration amplitude according to claim 1, characterized in that: The housing (3) is provided with a slideway matching the transmission rod (2); the transmission rod (2) is provided with a first radial protruding ring (6); the outer end of the slideway is provided with a second radial protruding ring (7) extending inwardly; and the two ends of the first spring (16) are respectively connected to the two protruding rings.

3. The fascia gun with adjustable vibration amplitude according to claim 1, characterized in that: The regulating block (5) is flat, and the edge of the side wall of the regulating block (5) is arc-shaped.

4. The fascia gun with adjustable vibration amplitude according to claim 1, characterized in that: The regulating block (5) is prism-shaped, and a circular chamfer is provided at the side edge of the prism.

5. The fascia gun with adjustable vibration amplitude according to claim 1, characterized in that: The axis of the adjustment block (5) is perpendicular to the axis of the transmission rod (2), and any radial cross section of the adjustment block (5) is non-circular.

6. The fascia gun with adjustable vibration amplitude according to claim 1, characterized in that: The stroke adjustment mechanism comprises a mounting cylinder (8) and an adjustment cylinder (9); the motor (4) is slidably connected in the mounting cylinder (8); a plurality of protrusions (10) are provided on the side wall of the motor (4); a through groove matching the protrusions (10) is provided on the side wall of the mounting cylinder (8); the adjustment cylinder (9) is rotatably connected to the outside of the mounting cylinder (8); and the inner wall of the adjustment cylinder (9) and the outer wall of the protrusions (10) are provided with threads matching each other.

7. The fascia gun with adjustable vibration amplitude according to claim 6, characterized in that: The motor (4) is detachably connected to a sleeve (11), and the protruding block (10) is arranged on the sleeve (11).

8. The fascia gun with adjustable vibration amplitude according to claim 1, characterized in that: The stroke adjustment mechanism comprises a mounting cylinder (8), the motor (4) is slidably connected inside the mounting cylinder (8), a buckle block is connected to the side wall of the motor (4) via a second spring, and the outer end of the buckle block is hemispherical; the mounting cylinder (8) is provided with a plurality of buckle holes matching the buckle blocks.

9. The fascia gun with adjustable vibration amplitude according to claim 1, characterized in that: A rotary rheostat (12) is arranged inside the housing (3), and an adjusting knob (13) is rotatably connected to the outside of the housing (3), wherein the adjusting knob (13) is connected to the rotary rheostat (12); a battery (14) is arranged inside the housing (3), and the rotary rheostat (12) is electrically connected between the motor (4) and the battery (14).

10. The fascia gun with adjustable vibration amplitude according to claim 1, characterized in that: A contact rod (15) is provided at the inner end of the transmission rod (2), the contact rod (15) is in contact with the side wall of the adjustment block (5), and the inner end of the contact rod (15) is hemispherical.

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