CN211050167U

CN211050167U - Coaxial reciprocating movement and fascia gun

Info

Publication number: CN211050167U
Application number: CN201921236823.9U
Authority: CN
Inventors: 马学军; 邱太海; 李锐
Original assignee: Shenzhen Breo Technology Co Ltd
Current assignee: Shenzhen Breo Technology Co Ltd
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-07-21
Anticipated expiration: 2029-08-01

Abstract

The application discloses coaxial reciprocal core and manadesma rifle, including rotary power source, transmission shaft, two at least location bodies, motion axle and the fixed axle sleeve that can provide rotary power, rotary power source drive the transmission shaft rotates around the rotation axis, the face of cylinder of transmission shaft has two at least transmission grooves, transmission groove with location body one-to-one, transmission groove slope sets up and encircles the rotation axis, adjacent two transmission grooves are about the perpendicular the plane symmetry of rotation axis, each the upper portion of location body all is located the motion axle, each the lower part of location body all imbeds rather than corresponding the transmission groove, fixed axle sleeve has the straight line track that extends in the direction of rotation axis, the motion axle with straight line track cooperation. The linear reciprocating motion of the motion shaft is realized through the matching of the transmission groove and the positioning body; through setting up two at least locating bodies, make the core operation more steady quiet.

Description

Coaxial reciprocating movement and fascia gun

Technical Field

The utility model relates to a coaxial reciprocal core especially relates to a coaxial reciprocal core who is applied to manadesma rifle.

Background

The Fascia Gun (full name: muscle Fascia relaxation massage Gun, English name: Fascia Gun) is a high-frequency secondary impact physical therapy tool for Fascia relaxation. The fascial gun generates vibration for 2000-3000 times per minute, and the muscle soft tissue is relaxed and recovered by impacting a body target part through the gun head, so that the blood circulation is promoted; meanwhile, a large amount of creatine generated by fatigue of a human body in sports, work and life is effectively dissipated, and the effect of relieving the fatigue of the human body is very good; the high-frequency oscillation effect can directly penetrate deep skeletal muscles, so that the skeletal muscles are relaxed instantly, and the nerves and blood vessels of the channels and collaterals are instantly unblocked. Fascial guns typically comprise a gun head and a coaxial reciprocating movement that drives the gun head to oscillate at high speed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel coaxial reciprocating movement.

The utility model provides a coaxial reciprocating movement, including rotary power source, transmission shaft, two at least location bodies, motion axle that can provide rotary power and can retrain the fixed axle sleeve of the rotational motion degree of freedom of motion axle, rotary power source drive the transmission shaft rotates around the rotation axis, the face of cylinder of transmission shaft has two at least transmission slot that all can realize straight line reciprocating transmission, transmission slot with the location body one-to-one, transmission slot slope sets up and encircles the rotation axis, adjacent two transmission slot is about perpendicular the plane symmetry of rotation axis, the upper portion of each location body all is located the motion axle, the lower part of each location body all imbeds rather than corresponding transmission slot, fixed axle sleeve has the straight line track that extends in the direction of rotation axis, the motion shaft is matched with the linear track, and when the rotary power source works, the motion shaft linearly reciprocates along the linear track.

The linear rail is an anti-rotation groove that penetrates the fixed bushing in the direction of the rotation axis. The section of the anti-rotation groove is D-shaped.

The rotary power source is a motor, and the transmission shaft is fixed with a motor shaft of the motor.

The moving shaft is sleeved on the transmission shaft, and two adjacent positioning bodies are staggered by a set distance in the direction of the rotation axis; two adjacent positioning bodies are staggered by a set angle in the circumferential direction around the rotation axis.

The moving shaft is provided with at least two positioning holes which penetrate through the moving shaft in the radial direction, the positioning holes correspond to the positioning bodies one to one, the positioning bodies are spheres, and the upper parts of the spheres are embedded into the positioning holes corresponding to the spheres.

The number of the positioning holes, the positioning body and the transmission groove is two.

A fascia gun comprises a shell, a gun head and a coaxial reciprocating movement, wherein the coaxial reciprocating movement is arranged in the shell, and a moving shaft of the coaxial reciprocating movement is fixed with the gun head.

The utility model has the advantages that: the linear reciprocating motion of the motion shaft is realized through the matching of the transmission groove and the positioning body; through setting up two at least locating bodies, make whole core operation more steady quiet.

Drawings

Fig. 1 is a schematic structural view of a coaxial reciprocating movement of the present embodiment;

fig. 2 is a perspective exploded schematic view of a coaxial reciprocator type of the present embodiment;

fig. 3 is a schematic structural view of the coaxial reciprocating movement of the embodiment applied to a fascia gun.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a coaxial reciprocating movement includes a motor 2, a transmission shaft 3, a moving shaft 6 and a fixed shaft sleeve 7. The motor 2 provides rotational power and has a motor shaft 21. The drive shaft 3 is fixed to a motor shaft 21, which is rotatable with the motor shaft 21 about a rotational axis. The drive shaft 3 has a shaft portion 31 of a smaller diameter and a head portion 32 of a larger diameter integrally connected, the head portion 32 being fixed to the motor shaft 21, the shaft portion 31 having a cylindrical surface with two

drive grooves

34, 35 each enabling bidirectional reciprocating drive. The shaft part 31 of the transmission shaft is sleeved by the moving shaft 6, the moving shaft 6 is provided with two positioning holes 61 which penetrate through in the radial direction, two

positioning bodies

62 and 63 are respectively arranged on the two positioning holes 61, the upper part of each positioning body is inserted into the corresponding positioning hole, and the lower part of each positioning body is embedded into the corresponding transmission groove. The tip holder 9 may be fixed to an end of the moving shaft. The fixed shaft sleeve 7 is fixedly arranged and used for sleeving the moving shaft 6, and the fixed shaft sleeve 7 can restrict the freedom degree of the rotating motion of the moving shaft 6, so that the moving shaft 6 cannot rotate relative to the fixed shaft sleeve 7. The fixed sleeve 7 has a linear track 71 extending in the direction of the rotation axis, and the moving shaft 6 is engaged with the linear track 71 so that the moving shaft 6 can reciprocate along the linear track 71.

The two

drive channels

34, 35 are symmetrical about a plane perpendicular to the drive shaft axis. The

drive grooves

34, 35 are annular grooves around the drive shaft axis and are inclined at an acute angle to the drive shaft axis, i.e., the drive grooves correspond to intersecting lines formed by intersecting inclined planes with the cylindrical surface of the drive shaft. In the direction of the axis of rotation, the two

positioning bodies

62, 63 are offset by a certain distance; in the circumferential direction around the axis of rotation, the two

positioning bodies

62, 63 are offset by a certain angle, the lower part of one positioning body 62 engaging in the left-hand drive groove 35 and the lower part of the other positioning body 63 engaging in the right-hand drive groove 34. The moving shaft 6 is sleeved on the transmission shaft 3 with a proper gap between the two, which can ensure that the

positioning bodies

62, 63 can not be separated from the

transmission grooves

34, 35 and the positioning hole 61.

When the motor 2 works, the motor drives the transmission shaft 3 to rotate around the rotation axis, and in the rotating process, the two

positioning bodies

62 and 63 are respectively matched with the two

transmission grooves

35 and 34 and the fixed shaft sleeve 7 is matched with the moving shaft 6, so that the moving shaft 6 can do linear reciprocating motion along the linear track 71.

In the present embodiment, the motor can supply the rotational power, and may be replaced with another rotational power source that can supply the rotational power. Two positioning bodies are positioned and installed on the moving shaft, and the lower parts of the two positioning bodies are embedded into the transmission groove. Of course, at least three positioning bodies can be positioned and mounted on the moving shaft; when there are at least three positioning bodies, there are at least three mutually independent transmission grooves, and at this time, two adjacent transmission grooves are symmetrical about a plane perpendicular to the axis of the transmission shaft. The positioning bodies can be restrained by the positioning holes corresponding to the positioning bodies, and the relative distance of each positioning body is kept unchanged in the process that the transmission shaft rotates around the rotation axis.

In the present embodiment, the linear track is a detent groove that penetrates the fixed sleeve in the direction of the rotation axis, and the detent groove can prevent the movable shaft from rotating relative to the fixed sleeve, and the cross section of the detent groove may have a D-shape, a polygonal shape, a racetrack shape, or the like. The drive shaft and the movement shaft may be coaxial and the axes may coincide with the rotation axis.

As shown in fig. 3, which is the application of the coaxial reciprocating movement on a fascia gun.

The fascia gun comprises a shell 1, a gun head and the coaxial reciprocating movement, wherein the coaxial reciprocating movement is installed inside the shell 1, a moving shaft 6 of the coaxial reciprocating movement is fixed with a gun head support 9, and the gun head is located outside the shell 1 and is installed on the gun head support 9. When the gun head is used, the motor 2 drives the transmission shaft 3 to rotate around the rotation axis, and the transmission shaft 3 drives the motion shaft 6 to do linear reciprocating motion along the linear track of the motion shaft 7, so that the gun head can repeatedly beat and impact the body part of a user.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement.

Claims

1. A coaxial reciprocating movement is characterized by comprising a rotary power source capable of providing rotary power, a transmission shaft, at least two positioning bodies, a moving shaft and a fixed shaft sleeve capable of restricting the degree of freedom of rotary motion of the moving shaft, wherein the rotary power source drives the transmission shaft to rotate around a rotary axis, a cylindrical surface of the transmission shaft is provided with at least two transmission grooves capable of realizing linear reciprocating transmission, the transmission grooves correspond to the positioning bodies one to one, the transmission grooves are obliquely arranged and surround the rotary axis, two adjacent transmission grooves are symmetrical about a plane vertical to the rotary axis, the upper part of each positioning body is positioned on the moving shaft, the lower part of each positioning body is embedded into the corresponding transmission groove, and the fixed shaft sleeve is provided with a linear track extending in the direction of the rotary axis, the motion shaft is matched with the linear track, and when the rotary power source works, the motion shaft linearly reciprocates along the linear track.

2. A coaxial reciprocating movement according to claim 1, wherein the linear track is an anti-rotation slot extending through the fixed boss in the direction of the axis of rotation.

3. A coaxial reciprocating cartridge according to claim 2, wherein the anti-rotation slot is D-shaped in cross-section.

4. A coaxial reciprocating cartridge according to claim 1, wherein the source of rotational power is a motor, and the drive shaft is fixed to a motor shaft of the motor.

5. The coaxial reciprocating movement of claim 1, wherein the moving shaft is fitted around the transmission shaft, and two adjacent positioning bodies are staggered by a set distance in the direction of the rotation axis; two adjacent positioning bodies are staggered by a set angle in the circumferential direction around the rotation axis.

6. The coaxial reciprocating movement of claim 5, wherein the movable shaft has at least two positioning holes extending radially therethrough, the positioning holes corresponding one-to-one to the positioning bodies, the positioning bodies being spheres, and upper portions of the spheres being fitted into the corresponding positioning holes.

7. The coaxial reciprocating movement of claim 6, wherein there are two of the alignment holes, alignment bodies, and drive grooves.

8. A fascia gun, which comprises a shell and a gun head, and is characterized by further comprising a coaxial reciprocating movement according to any one of claims 1 to 7, wherein the coaxial reciprocating movement is arranged in the shell, and a moving shaft of the coaxial reciprocating movement is fixed with the gun head.