WO2021139356A1

WO2021139356A1 - Fascia gun core

Info

Publication number: WO2021139356A1
Application number: PCT/CN2020/125072
Authority: WO
Inventors: 任杨杰
Original assignee: 厦门鑫奥力电器有限公司
Priority date: 2020-01-12
Filing date: 2020-10-30
Publication date: 2021-07-15

Abstract

A fascia gun core, which relates to the technical field of massage devices. The key points of the technical solution thereof are: that comprised are a motor (47), a crankshaft (22), a swing rod (16), a rotary shaft block (21), a swing rod shaft (24), a left connecting rod (20), a right connecting rod (25), a sleeve head rotary shaft (29), and a sliding sleeve head (27). A horizontal rear end portion of the crankshaft (22) is sleeved on an output shaft of the motor (47), a lower end portion of the swing rod (16) is sleeved on an inclined front end portion of the crankshaft (22), a central hole of the rotary shaft block (21) is rotatably sleeved on an upper end portion of the swing rod (16), the swing rod shaft (24) runs laterally through a rear portion of the rotary shaft block (21), rear end portions of the left connecting rod (20) and the right connecting rod (25) are correspondingly rotatably sleeved on left and right end portions of the swing rod shaft (24), left and right end portions of the bush shaft (29) correspondingly run laterally through front end portions of the left connecting rod (20) and the right connecting rod (25), and a rear end portion of the sliding sleeve head (27) is movably sleeved on the middle of the sleeve head rotary shaft (29). The fascia gun core has a very high overall space utilization rate and reduces the product dimensions to the greatest extent possible. The structure is compact, the volume is small, and the fascia gun core is easy to pack and carry. Moreover, the noise level is low, the vibrations are small, and the user experience is extremely good.

Description

Movement of fascia gun

Technical field

The invention relates to the technical field of massage equipment, and more specifically, it relates to a fascia gun movement.

Background technique

Fascia gun, the full name of the muscle fascia relaxation massage gun (Fascia Gun), used for fascia relaxation high-frequency impact therapy (Percussion Therapy). After fitness or exercise, the sympathetic nerves are over-excited, causing the muscles to be too tense when they are static, resulting in fascial adhesions, which affects the recovery of growth. When the fascia is adhered or damaged, the body often has many uncomfortable reactions: muscle stiffness, stiffness, tightness, local skin temperature is low, and damp; muscle tissue is loose, inelastic or elastic, sunken; subcutaneous, deep muscle, There are irregular lump-like or string-like hard tissues between the sutures. This is a way for the body to protect muscles, and it is also a protective mechanism that hinders muscle recovery. In particular, some deep-seated muscles are difficult to reach by foam shafts or vibrating foam shafts. Therefore, the fascia must be relaxed to release these extra excitement, so that the above problems can be solved and alleviated. With dynamic stretching before training and static stretching after training, the muscles and joints are more beautiful and safe.

Compared with the daily use of foam rollers to relax, the fascia gun relaxes muscles and fascia more deeply and accurately. The fascia gun produces 2000-3000 vibrations per minute, and helps the muscles and soft tissues to relax and recover through the gun head impacting the target part of the body, and promote blood circulation. At the same time, it effectively dissipates the large amount of creatine produced by the human body due to fatigue in exercise, work and life, and has a very good effect of relieving body fatigue; its high-frequency oscillation effect can penetrate deep skeletal muscles and relax skeletal muscles instantly. Meridians, nerves and blood vessels flowed smoothly. At present, the fascia guns on the market (such as Chinese invention patent application CN109758348A and Chinese invention patent application CN109893419A) are only realized by rotating eccentric + slider reciprocating movement, resulting in large product size, inconvenient storage and carrying, high noise and jitter Great, poor user experience.

Summary of the invention

In view of the shortcomings of the prior art, the purpose of the present invention is to provide a fascia gun movement with high overall space utilization, a function of reducing product size within a maximum range, compact structure, small volume, convenient storage and carrying, and low noise , The jitter is small, and the user experience is excellent.

In order to achieve the above objective, the present invention provides the following technical solutions:

A fascia gun movement includes a motor, a crank shaft, a swing rod, a shaft block, a swing rod shaft, a left connecting rod, a right connecting rod, a sleeve shaft, and a sliding sleeve. The horizontal rear end of the crank shaft is fixedly sleeved Set on the output shaft of the motor, the lower end of the pendulum rod is rotatably sleeved on the inclined front end of the crank shaft, the central hole of the shaft block is rotatably sleeved on the upper end of the pendulum rod, and the pendulum shaft The rear end of the left link and the right link are rotatably sleeved on the left and right ends of the pendulum shaft, and the left and right ends of the shaft of the sleeve head are corresponding to the rear of the shaft block. It is arranged at the front end of the left connecting rod and the right connecting rod, and the rear end of the sliding sleeve is movably sleeved in the middle of the shaft of the sleeve.

It is further provided that it also includes an elastic sleeve, the sliding sleeve is slidably inserted into the elastic sleeve, the inner peripheral side wall of the elastic sleeve is in sliding contact with the outer peripheral side wall of the sliding sleeve, and the inner peripheral side wall of the elastic sleeve extends along At least one circle of a plurality of positioning grooves distributed at equal intervals is arranged in the axial direction, and a low-friction element is arranged in the positioning groove, and the low-friction element is in point/line contact with the outer peripheral side wall of the sliding sleeve.

It is further provided that an annular buffer groove is opened on the outer wall of the elastic sleeve relative to the position of the ball.

Further arrangement: it also includes a base, the motor is installed on the base, and the sliding sleeve is slidably arranged on an end of the base away from the motor.

It is further provided that the base is installed in the main casing through a second screw and an I-shaped shock absorbing ring sleeved on the second screw.

It is further provided that a guide rod and a rotating shaft sleeve are provided on one end of the sliding sleeve head, and the guide rod and the rotating shaft sleeve are respectively located on both sides of the sliding sleeve head, the rotating shaft sleeve is rotatably connected to the sleeve head shaft, and the base is provided There is a guide ring, and the end of the guide rod away from the sliding sleeve is slidably inserted through the guide ring.

It is further provided that the guide rod and the rotating shaft sleeve are arranged symmetrically to the axis of the sliding sleeve, and the rotating shaft is sleeved on the top of one end of the sliding sleeve, the guide rod is arranged on the bottom of one end of the sliding sleeve, and the guide ring and the guide rod are arranged correspondingly and juxtaposed At the bottom of the base.

Further arrangement: a counterweight is arranged on the base, and the counterweight is arranged on the side of the base away from the rotating shaft sleeve.

It is further provided that the counterweight is arranged at the bottom of the base, and the counterweight is provided with a relief groove sleeved on the guide ring and a guide groove for the sliding of the guide rod.

Further arrangement: it also includes a left support rod and a right support rod, the upper end of the left support rod is rotatably sleeved on the left end of the swing rod shaft and is located outside the left connecting rod, and the lower end of the left support rod is movable sleeve It is arranged on the left rotating shaft, the left rotating shaft transversely penetrates the left side of the middle part of the base, the upper end of the right supporting rod is rotatably sleeved on the right end of the socket shaft and is located outside the right connecting rod, the right The lower end of the support rod is movably sleeved on the right rotating shaft, and the left rotating shaft is transversely arranged on the right side of the middle of the base.

Compared with the prior art, the present invention has the following advantages by adopting the above technical solutions:

1. The fascia gun first converts the rotational motion of the motor and the crank shaft into the swing and twist of the pendulum rod and the shaft block, and then converts the swing and twist of the shaft block into the complete set of head shaft and sliding sleeve through the left link and the right link. The linear reciprocating motion of the slidable sleeve makes the striking head move forward and backward synchronously, thereby realizing the striking function, with low noise, low jitter, and excellent user experience. The transmission mechanism of this special structure is adopted, and the axial direction of the linear reciprocating motion device is consistent with that of the linear reciprocating motion device. The axial direction of the motor is the same, so that the space required for force transmission is very small, the overall space utilization rate is extremely high, and the function of reducing the product size in the largest range, compact structure, small size, easy to store and carry, improve the competitiveness of the product, and enhance The technical level of the industry;

2. By setting the elastic sleeve on the low-friction part, the friction of the sliding sleeve head can be reduced, the stability of the sliding sleeve head can be improved, and the vibration of the fascia gun movement can be reduced;

3. By setting the I-shaped shock absorbing ring at the installation place of the base and the main shell, the vibration of the fascia gun can be reduced, and the experience of use can be improved;

4. The guide rod and the guide ring provide a guiding cooperation, and the installation collar provides a two-point limit guiding function for the sliding sleeve head, which can avoid the sliding sleeve head swinging up and down when moving, ensuring that the massage head beats in a straight line, and improves its use comfort Effect;

5. With the counterweight, the gravity at the bottom of the base can be increased, the swing force of the sliding sleeve head can be balanced, and the movement of the fascia gun can be reduced, which has the effect of improving the comfort of use.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the fascia gun movement;

Figure 2 is an exploded view of the structure of the fascia gun movement.

In the picture: 8, base; 9, I-shaped shock ring; 11, left shaft; 12, second screw; 13, circlip; 15, crank shaft cover; 16, swing rod; 17, bearing; 18. Gasket; 19. Left support rod; 20, left connecting rod; 21, shaft block; 22, crank shaft; 23, wear sleeve; 24, swing rod shaft; 25, right connecting rod; 27, sliding sleeve; 28, Low friction parts; 29, sleeve head shaft; 30, elastic sleeve; 301, annular buffer groove; 31, gland; 32, first screw; 45, third screw; 46, nut; 47, motor; 48, fourth screw 49, positioning groove; 51, guide rod; 52, rotating shaft sleeve; 53, guide ring; 61, counterweight; 62, relief groove; 63, guide groove.

Detailed ways

With reference to Fig. 1 to Fig. 2, the protective gear that facilitates the disassembly and assembly of the goggles and the protective mask will be further described.

A fascia gun movement, as shown in Figure 1 and Figure 2, includes a motor 47, a crank shaft 22, a swing rod 16, a shaft block 21, a swing rod shaft 24, a left connecting rod 20, a right connecting rod 25, and a socket shaft 29 and the sliding sleeve 27, the horizontal rear end of the crank shaft 22 is fixedly sleeved on the output shaft of the motor 47, the lower end of the pendulum rod 16 is rotatably sleeved on the inclined front end of the crank shaft 22, and the center of the shaft block 21 The hole is rotatably sleeved on the upper end of the pendulum rod 16, the pendulum shaft 24 is transversely penetrated at the rear of the shaft block 21, and the rear ends of the left link 20 and the right link 25 are rotatably sleeved on the pendulum shaft. The left and right ends of the sleeve 24 and the left and right ends of the sleeve shaft 29 are transversely passed through the front ends of the left link 20 and the right link 25, and the rear end of the sliding sleeve 27 is movably sleeved in the middle of the sleeve shaft 29.

In this embodiment, as shown in Figures 1 to 2, the fascial gun movement further includes an elastic sleeve 30, the sliding sleeve 27 is slidably inserted in the elastic sleeve 30, and the inner peripheral side wall of the elastic sleeve 30 and the sliding sleeve 27 The outer peripheral side wall of the elastic sleeve 30 is in sliding contact and fit, and the inner peripheral side wall of the elastic sleeve 30 is provided with at least one circle of a plurality of positioning grooves 49 distributed at equal intervals along the axial direction. The positioning groove 49 is provided with a low friction member 28, and the low friction member 28 and The outer peripheral side wall of the sliding sleeve 27 is in point/line contact. When the sliding sleeve 27 reciprocates linearly in the elastic sleeve 30, the low-friction member 28 in the positioning groove 49 is in point/line contact with the sliding sleeve 27, and most of the lateral squeezing force generated by the deflection of the sliding sleeve 27 is converted into At the same time, the local deformation of the elastic sleeve 30 absorbs a small part of the lateral squeezing force, which solves the problem of abnormal noise and vibration caused by the deflection of the sliding sleeve head 27. Wherein, the outer wall of the elastic sleeve 30 relative to the ball position is provided with an annular buffer groove 301, which can provide a buffer space for the low-friction element 28 to be compressed, and prevent the low-friction element 28 from squeezing the elastic sleeve 30 against the main housing, thereby reducing the movement Jitter.

In this embodiment, as shown in Figure 2, the low friction member 28 is preferably but not limited to wear-resistant balls, and can also be needle rollers, cylindrical rollers, tapered rollers, rollers, etc. The shape of the positioning groove 49 is equal to half The low-friction element 28 is compatible, such as a hemispherical groove, a semi-cylindrical groove, and a semi-cylindrical groove. The material of the low-friction element 28 is preferably but not limited to POM, wear-resistant rubber, and the like. The material of the elastic sleeve 30 is preferably but not limited to rubber, silica gel, and the like. In order to further improve the linear reciprocating sliding effect of the sliding sleeve head 27 in the elastic sleeve 30, a layer of grease may be applied to the positioning groove 49 or outside the low friction part 28, so that the low friction part 28 can be rubbed with the positioning groove 49 and the sliding sleeve head 27 respectively. Less force. In order to make the outer peripheral side of the sliding sleeve 27 more uniform, and to make the sliding sleeve 27 have a better linear reciprocating sliding effect in the elastic sleeve 30, the positioning grooves 49 between two adjacent circles can be staggered with each other.

In this embodiment, as shown in Figure 2, the fascia gun movement further includes a base 8 and a pressure cover 31. The lower part of the elastic sleeve 30 is embedded above the front end of the base 8, and the pressure cover 31 passes through the first The screw 32 is fixed above the front end of the base 8 and presses the upper part of the elastic sleeve 30. Among them, the base 8 is installed in the main housing (omitted in the figure) through the second screw 12 and the I-shaped shock-absorbing ring 9 sleeved on the second screw 12 to reduce the vibration of the fascia gun. The motor 47 is fixed on the rear side of the chuck by a fourth screw 48, and the chuck is embedded in the main housing.

In this embodiment, as shown in Figure 2, the fascia gun movement also includes a left support rod 19 and a right support rod. The upper end of the left support rod 19 is rotatably sleeved on the left end of the swing rod shaft 24 and is located On the outside of the left link 20, the lower end of the left support rod 19 is movably sleeved on the left rotation shaft 11, the left rotation shaft 11 is transversely penetrated on the left side of the middle of the base 8, and the upper end of the right support rod is rotatably sleeved on the sleeve head The right end of the rotating shaft 29 is located outside the right connecting rod 25, the lower end of the right supporting rod is movably sleeved on the right rotating shaft, and the left rotating shaft 11 is transversely penetrated on the right side of the middle of the base 8 through the left supporting rod 19 and the right The support rod supports the swing rod shaft 24 and the sleeve shaft 29 correspondingly. Among them, the swing rod 16, the left link 20, the right link 25, the left support rod 19, and the right support rod are all preferably but not limited to POM materials.

In this embodiment, as shown in Figure 2, the left end of the swing rod shaft 24 is sleeved with two spacers 18 located on both sides of the left support rod 19, and the left end of the swing rod shaft 24 and the left rotating shaft 11 are both provided with useful For positioning the circlip 13 of the left support rod 19, the right end of the sleeve shaft 29 is sleeved with two spacers 18 located on both sides of the right support rod, and the left end of the sleeve shaft 29 and the right shaft are both provided for positioning the right support rod.的circlip 13. Among them, the spacer 18 is preferably, but not limited to, nylon graphite spacers, so that the left support rod 19 and the right support rod can swing more flexibly.

In this embodiment, as shown in Figure 2, the lower end of the pendulum rod 16 is sleeved on the inclined front end of the crank shaft 22 through (a pair of) bearings 17. A crank shaft 15 is provided in front of the inner ring of the bearing 17 and the crank shaft 15 is fixed to the inclined front end of the crank shaft 22 by a third screw 45 and a nut 46; a wear sleeve 23 is provided between the upper end of the pendulum rod 16 and the shaft block 21. The material of the wear sleeve 23 is preferably but not limited to metal Sets (such as copper sets).

In this embodiment, as shown in FIG. 2, a guide rod 51 and a rotating shaft sleeve 52 are provided on one end of the sliding sleeve head 27, and the guide rod 51 and the rotating shaft sleeve 52 are respectively located on both sides of the sliding sleeve head 27, and the rotating shaft sleeve 52 is rotatably connected to On the sleeve shaft 29, the base 8 is provided with a guide ring 53, and the end of the guide rod 51 away from the sliding sleeve 27 is slidably inserted through the guide ring 53 to improve the stability during movement. Specifically, the guide rod 51 and the rotating shaft sleeve 52 are arranged symmetrically to the axis of the sliding sleeve head 27, and the rotating shaft sleeve 52 is arranged at the top of one end of the sliding sleeve head 27, the guide rod 51 is arranged at the bottom of one end of the sliding sleeve head 27, and the guide ring 53 and the guide rod 51 correspond to each other. It is arranged at the bottom of the base 8 so that the guide shaft 29 of the sleeve head and the guide rod 51 are in a symmetrical position, so that the sliding sleeve head 27 can use the guide rod 51 and the guide ring 53 at the bottom when the sleeve head shaft 29 pushes the top to move. The guiding cooperation prevents the sliding sleeve head 27 from swinging up and down when it moves, improves the stability of the sliding sleeve head 27 movement, ensures that the massage head beats in a straight line, and improves the comfort of using the fascia gun.

In this embodiment, as shown in FIG. 2, a counterweight 61 is provided on the base 8. The counterweight 61 is provided on the side of the base 8 away from the shaft sleeve 52, thereby increasing the counterweight of the base 8 to ensure The stability of the movement during use. Specifically, the counterweight 61 is provided at the bottom of the base 8, and the counterweight 61 is provided with a relief groove 62 sleeved on the guide ring 53 and a guide groove 63 for the guide rod 51 to slide. The weight 61 is sleeved on the guide ring 53, and when the compact fascia gun movement is installed on the fascia gun housing, the counterweight 61 can be positioned to reduce the shaking of the compact fascia gun movement during use. Improve the comfort of using the fascia gun.

This embodiment also provides a working method of the fascia gun movement as above: the crank shaft 22 is driven to perform synchronous rotation through the rotation of the shaft of the motor 47, and the swing rod 16 is swayed back and forth by the rotation of the crank shaft 22. , The swing and twist of the swing rod 16 drives the shaft block 21 to perform synchronous swing and twist. The shaft block 21 drives the sleeve shaft 29 through the left link 20 and the right link 25 to make forward and backward reciprocating linear motions, and the sleeve shaft 29 reciprocates back and forth. The linear motion drives the sliding sleeve 27 to make synchronous forward and backward reciprocating linear motions.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments. All technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and modifications made without departing from the principle of the present invention, these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

A fascia gun movement, which is characterized in that it comprises a motor, a crank shaft, a swing rod, a shaft block, a swing rod shaft, a left connecting rod, a right connecting rod, a sleeve shaft and a sliding sleeve. The horizontal rear end of the crank shaft The part is fixedly sleeved on the output shaft of the motor, the lower end of the pendulum rod is rotatably sleeved on the inclined front end of the crank shaft, the center hole of the shaft block is rotatably sleeved on the upper end of the pendulum rod, so The pendulum rod shaft is transversely arranged at the rear of the shaft block, the rear ends of the left link and the right link are rotatably sleeved on the left and right ends of the pendulum shaft, and the left and right ends of the sleeve shaft are rotatably sleeved. Correspondingly, the front ends of the left connecting rod and the right connecting rod are transversely penetrated, and the rear end of the sliding sleeve is movably sleeved in the middle of the shaft of the sleeve.
The fascial gun movement according to claim 1, further comprising an elastic sleeve, the sliding sleeve is slidably inserted in the elastic sleeve, and the inner peripheral side wall of the elastic sleeve is connected to the outer circumference of the sliding sleeve. The side walls are in sliding contact and fit, and the inner peripheral side wall of the elastic sleeve is provided with at least one circle of a plurality of positioning grooves distributed at equal intervals along the axial direction. Point/line contact with the outer peripheral side wall of the sleeve.
The fascia gun movement according to claim 2, wherein the outer wall of the elastic sleeve relative to the position of the ball is provided with an annular buffer groove.
The fascial gun movement according to claim 1, further comprising a base, the motor is mounted on the base, and the sliding sleeve is slidably arranged on an end of the base away from the motor.
The fascia gun movement according to claim 4, wherein the base is installed in the main housing by a second screw and an I-shaped shock-absorbing ring sleeved on the second screw.
A fascia gun movement according to claim 4, wherein a guide rod and a rotating shaft sleeve are provided on one end of the sliding sleeve, and the guide rod and the rotating shaft sleeve are respectively located on both sides of the sliding sleeve, so The rotating shaft sleeve is rotatably connected to the sleeve head rotating shaft, the base is provided with a guide ring, and the end of the guide rod away from the sliding sleeve head is slidably inserted into the guide ring.
The fascial gun movement according to claim 6, wherein the guide rod and the rotating shaft sleeve are arranged symmetrically to the axis of the sliding sleeve, and the rotating shaft is sleeved on the top of one end of the sliding sleeve, and the guide rod is arranged At the bottom of one end of the sliding sleeve, the guide ring corresponds to the guide rod and is arranged at the bottom of the base.
The fascia gun movement according to claim 6, wherein a counterweight is provided on the base, and the counterweight is provided on a side of the base away from the rotating shaft sleeve.
The fascia gun movement according to claim 8, wherein the counterweight is provided at the bottom of the base, and the counterweight is provided with a relief groove sleeved on the guide ring and A guide groove for the sliding of the guide rod.
A fascia gun movement according to claim 1, further comprising a left support rod and a right support rod, the upper end of the left support rod is rotatably sleeved on the left end of the swing rod shaft and is located On the outer side of the left link, the lower end of the left support rod is movably sleeved on the left rotation shaft, the left rotation shaft passes through the left side of the middle of the base transversely, and the upper end of the right support rod is rotatably sleeved on The right end of the sleeve head rotating shaft is located outside the right connecting rod, the lower end of the right supporting rod is movably sleeved on the right rotating shaft, and the left rotating shaft is transversely penetrated on the right side of the middle of the base.