Transmission mechanism, fascia gun and working method with split radial elastic support

Abstract

The present invention provides a transmission mechanism, a fascia gun and a working method with a split radial elastic support. The bearing of the eccentric wheel mechanism of the transmission mechanism is driven to perform eccentric motion. A circular bearing fixing hole is provided on the transmission rod. The bearing is fixedly arranged in the circular bearing fixing hole and is rotationally matched with the transmission rod. Through the elastic change of the radial elastic support, synchronous lateral equidistant translation and axial equidistant reciprocating linear motion of the transmission rod are realized. Due to the adoption of the split radial elastic support structure design without a guide rod and a guide sleeve, there is no friction and no lubrication between the moving parts of the fascia gun, which not only greatly saves the production cost, avoids the running resistance and oil dust pollution, but also reduces the power consumption, increases the battery life of the fascia gun, reduces the running noise of the fascia gun, prolongs the service life of the fascia gun, has a simple structure, is small and portable, and is convenient to use.

Description

Technical Field

[0001] The present invention belongs to the technical field of massage devices, and in particular relates to a transmission mechanism, a fascia gun and a working method with a split radial elastic support. Background Art

[0002] With the progress and development of technology, the living standards of people have been continuously improved. More and more people begin to pursue using technology products to improve their health levels and relieve work pressure and physical fatigue. In addition to relying on masseurs and large and medium-sized massage devices for massage, small and portable fascia guns have become the preference of more and more people. A fascia gun, also known as a deep muscle fascia impactor, is a tool for massaging human soft tissues, which relaxes the soft tissues of the body through high-frequency impacts. The fascia gun uses a specially designed high-speed motor inside to drive the massage head, generating high-frequency impact effects to reach deep into the muscles, achieving the effects of reducing local tissue tension, relieving pain, and promoting blood circulation. In traditional fascia gun transmission devices, most are driven by a motor to drive an eccentric wheel, and the eccentric wheel drives a transmission rod to make reciprocating movements. Since the direction of the reciprocating movement of the transmission rod needs to be restricted, a guide rod and a guide sleeve need to be provided between the transmission rod and the fascia gun. To reduce movement resistance and noise, lubricating oil also needs to be added between the guide rod and the guide sleeve. In practical applications, the amount of lubricating oil added is far from sufficient for long-term massage use, and the fascia gun will increase power consumption and operating noise due to the lack of lubricating oil. Summary of the Invention

[0003] The present invention aims to solve the above technical problems and provides a transmission mechanism, a fascia gun and a working method with a split radial elastic support.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A transmission mechanism with a split radial elastic support includes a radial elastic support, an eccentric wheel mechanism and a transmission rod; the radial elastic support is a disc-shaped ring body, the radial elastic support includes a first connecting ring, a second connecting ring and an elastic part, the elastic part is a spoke-type elastic part or a disc-type elastic part, the first connecting ring is used to connect the fixed part on the fascia gun, the second connecting ring is fixedly connected with the transmission rod, and the inner and outer sides of the elastic part are integrally arranged on the first connecting ring and the second connecting ring respectively; the eccentric wheel mechanism includes a bearing as an eccentric wheel; a circular bearing fixing hole is provided on the transmission rod, the bearing is fixedly arranged in the circular bearing fixing hole and rotates in cooperation with the transmission rod, and the distance by which the eccentric mechanism deviates is equal to the distance of the transverse and axial movement of the transmission rod; the bearing as the eccentric wheel is driven to perform eccentric movement, and through the elastic change of the radial elastic support, synchronous transverse equidistant translation and axial equidistant reciprocating linear movement of the transmission rod are realized.

[0006] Preferably, the radial elastic bracket is integrally formed of silica gel, latex, rubber or polyurethane.

[0007] Preferably, the spoke-type elastic part includes 3 or more spokes, and the cross-section of the spoke is circular, elliptical or rectangular.

[0008] Preferably, 3 or more circular through holes or arc-shaped through holes are equidistantly arranged in the circumferential direction on the disc-type elastic part, and the cross-section of the disc-type elastic part is of a structure shape with equal thickness inside and outside or thin in the middle and gradually thickening inside and outside.

[0009] Preferably, the transmission mechanism with a split radial elastic bracket further includes a base, which is the part fixed on the fascia gun fixedly connected to the radial elastic bracket. Elastic bracket mounting seats are integrally provided at the front and rear ends of the base. The radial elastic bracket is fixedly installed on the elastic bracket mounting seats. The elastic bracket mounting seats are annular. A first connecting ring clamping groove is provided on the outer peripheral surface of the elastic bracket mounting seat. The first connecting ring clamping groove is U-shaped. The first connecting ring is fixedly connected by hanging on the first connecting ring clamping groove. A bayonet corresponding to the spoke-type elastic part is provided on the outer end side of the elastic bracket mounting seat. The spoke-type elastic part is movably matched with the corresponding bayonet.

[0010] Preferably, the base is a rectangular semi-open shell with an upward opening.

[0011] Preferably, the base is integrally formed by injection molding of engineering plastics or die-casting of aluminum alloy.

[0012] Preferably, a total of 4 base fixing holes for fixedly connecting with the fascia gun are provided on the left and right sides of the base.

[0013] Preferably, the eccentric wheel mechanism further includes a motor and a bearing mounting seat. The bearing mounting seat is fixedly connected to the output shaft of the motor. The bearing is fixedly installed on the bearing mounting seat. The axis of the bearing is parallel and offset from the axis of the output shaft of the motor. A through hole is provided at the bottom of the base. The bearing and the bearing mounting seat are sequentially inserted into the through hole to install the motor below the base. The axis of the output shaft of the motor is perpendicular to the axis of the transmission rod.

[0014] Preferably, there are two radial elastic brackets. Bracket mounting grooves are respectively provided on the front and rear parts of the transmission rod at the circular bearing fixing holes. The second connecting ring is fixedly sleeved on the bracket mounting grooves on the transmission rod. The bottom surface of the bracket mounting groove and the inner hole of the second connecting ring are circular axially or circular with one side being a plane or polygonal with 2 or more sides. The second connecting ring is adapted to the bracket mounting groove and is in interference fit with the bracket mounting groove.

[0015] Preferably, a bearing gland is provided at the upper opening of the bearing fixing hole. One side of the bearing gland in contact with the bearing is provided with a pressing surface, and the pressing surface presses against the upper end surface of the bearing to limit the axial displacement of the bearing and control the smoothness of the movement of the transmission rod.

[0016] Preferably, the massage head is cylindrical, or oblate, or spherical, or U-shaped, or mushroom-shaped.

[0017] Preferably, on either side or both sides of the base, a cable fixing bracket is provided in the middle, and an inlet notch is provided on the outside of the cable fixing bracket.

[0018] The present invention also provides a fascia gun, including the above-mentioned transmission mechanism with a split radial elastic support.

[0019] Preferably, the fascia gun further includes a DC power supply and an electronic control board, and the DC power supply, the electronic control board, and the motor are electrically connected.

[0020] Preferably, the fascia gun further includes a housing, the housing includes an upper housing and a lower housing. An electronic control board mounting portion is provided inside the upper housing, and the electronic control board is fixedly arranged on the electronic control board mounting portion. The DC power supply is a built-in battery or an external power supply. The battery of the DC power supply is plugged and fixed inside the lower housing, or the external power supply socket is clamped or screwed and fixed on the bottom plate of the lower housing. The transmission mechanism with a split radial elastic support is arranged between the upper housing and the lower housing. There are 4 fixing columns on the lower housing or the upper housing corresponding to the 4 base fixing holes, and damping washers are sleeved on the fixing columns. The base is fixedly connected to the fixing columns through the base fixing holes and the damping washers. Except for the 4 fixing points, the rest of the transmission mechanism with a split radial elastic support is suspended inside the housing.

[0021] The present invention also provides a working method for the above-mentioned transmission mechanism with a split radial elastic support. The method includes: the motor drives the bearing mounting seat, the bearing mounting seat drives the bearing eccentrically arranged with the output shaft of the motor. The bearing as an eccentric wheel is driven to perform eccentric motion. A circular bearing fixing hole is provided on the transmission rod, and the bearing is fixedly arranged in the circular bearing fixing hole and rotates in cooperation with the transmission rod. Through the elastic change of the radial elastic support, synchronous lateral equidistant translation and axial equidistant reciprocating linear motion of the transmission rod are realized.

[0022] The above-mentioned transmission mechanism with a split radial elastic support, fascia gun and working method have the following outstanding advantages compared with the prior art:

[0023] Due to the adoption of the elastic support structure design without guide rods and guide sleeves, there is no friction and lubrication between the moving parts of the fascia gun. This not only greatly saves production costs, avoids running resistance and oil dust pollution, but also reduces power consumption, increases the battery life of the fascia gun, reduces the operating noise of the fascia gun, extends the service life of the fascia gun, and has a simple structure, is small and portable, and is easy to use. Description of the Drawings

[0024] Figure 1 For the present invention Figure 2 A-A cross-sectional view;

[0025] Figure 2 Front view of the transmission mechanism of the present invention with a split radial elastic support;

[0026] Figure 3 Stereogram of the transmission mechanism of the present invention with a split radial elastic support;

[0027] Figure 4 Exploded view of the transmission mechanism of the present invention with a split radial elastic support;

[0028] Figure 5 For the present invention Figure 1 B-B cross-sectional view;

[0029] Figure 6 Front view of the radial disc type elastic supports a and b of the present invention;

[0030] Figure 7 Exploded view of the fascia gun of the present invention;

[0031] Figure 8 Schematic diagram of the power socket of the lower housing of the fascia gun of the present invention.

[0032] In the figure: 1 radial elastic bracket, 1a - first connecting ring, 2 - motor fixing screw, 3 - motor, 4 - through hole, 5 - output shaft, 6 - bearing mounting seat, 7 - flange, 8 - base, 9 - annular groove, 9a - connecting sleeve groove, 10 - transmission rod, 11 - bayonet, 12 - elastic bracket mounting seat, 13 - bearing gland, 14 - gland fixing screw, 15 - circular bearing fixing hole, 16 - cable fixing bracket, 17 - bearing, 18 - spoke, 19 - base fixing hole, 20 - inlet notch, 21 - second connecting ring, 22 - card slot, 23 - bracket mounting groove, 24 - "○" shaped rubber ring, 25 - disc, 26 - circular through hole, 27 - arc-shaped through hole, 28 - massage head, 29 - connecting sleeve, 30 - neck sleeve, 31 - damping washer, 32 - base fixing screw, 33 - electronic control board, 34 - upper housing, 35 - power button, 36 - neck opening, 37 - fixing column, 38 - lower housing, 39 - housing fixing screw, 40 - handle part, 41 - DC power supply, 42 - lower housing bottom plate, 43 - power socket. Detailed implementation mode

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Embodiment 1

[0035] As Figures 1-5 shown, this embodiment provides a transmission mechanism with a split radial elastic bracket, including a radial elastic bracket 1, an eccentric wheel mechanism, a transmission rod 10, a massage head 28, and a base 8.

[0036] The radial elastic bracket 1 is a disc-shaped ring body. The radial elastic bracket includes a first connecting ring 1a, a second connecting ring 21, and an elastic part. The elastic part is a spoke-type elastic part. The first connecting ring 1a is used to connect the fixed part on the fascia gun. The second connecting ring 21 is fixedly connected to the transmission rod 10. The inner and outer sides of the elastic part are integrally arranged on the first connecting ring 1a and the second connecting ring 21 respectively.

[0037] The eccentric wheel mechanism includes a bearing 17 as an eccentric wheel. The bearing 17 is a deep groove ball bearing or a rubber-coated deep groove ball bearing. In this embodiment, the eccentric wheel mechanism further includes a motor 3 and a bearing mounting seat 6. The bearing mounting seat 6 is fixedly connected to the output shaft 5 of the motor 3. The bearing 17 is fixedly installed on the bearing mounting seat 6. The axis of the bearing 17 is parallel and offset from the axis of the output shaft 5 of the motor 3.

[0038] The motor 3 is installed below the base 8. The axis of the output shaft 5 of the motor 3 is perpendicular to the axis of the transmission rod 10.

[0039] The drive rod 10 is provided with a circular bearing fixing hole 15, and the bearing 17 is fixedly arranged in the circular bearing fixing hole 15 and is rotationally matched with the drive rod 10.

[0040] The upper opening of the circular bearing fixing hole 15 is provided with a bearing gland 13. One side of the bearing gland 13 in contact with the bearing 17 is provided with a pressing surface, and the pressing surface presses the upper end surface of the bearing 17 to limit the axial displacement of the bearing 17 and control the smoothness of the movement of the drive rod 10. The bearing gland 13 is screwed onto the drive rod 10 through gland fixing screws 14.

[0041] The spoke-type elastic part includes 3 or more spokes 18, and the cross-section of the spoke 18 is circular or oval or rectangular. In this embodiment, the spoke-type elastic part includes 6 spokes 18 evenly arranged in the circumferential direction. The cross-section of the spoke 18 is circular. The diameter of the cross-section of the spoke 18 is between 3 and 5 millimeters, the length of the spoke 18 is between 6 and 10 millimeters, the inner diameter of the first connecting ring 1 is between 28 and 33 millimeters, and the inner diameter of the second connecting ring 21 is between 5 and 8 millimeters.

[0042] The base 8 is the part fixed on the fascia gun fixedly connected to the radial elastic support 1. It can be understood that the first connecting ring 1a of the radial elastic support 1 can also be directly fixedly connected to the housing of the fascia gun.

[0043] Elastic support mounting seats 12 are integrally provided at the front and rear ends of the base 8. The radial elastic support 1 is fixedly installed on the elastic support mounting seats 12, and the elastic support mounting seats 12 are annular. A first connecting ring slot 22 is provided on the outer peripheral surface of the elastic support mounting seat 12. The first connecting ring slot 22 is in a U shape. The first connecting ring 1a is hung and fixed with the first connecting ring slot 22. A bayonet 11 corresponding to the spoke-type elastic part is provided on the outer end side surface of the elastic support mounting seat 12, and the spoke-type elastic part is movably matched with the corresponding bayonet 11. The spoke 18 can freely stretch and swing in this bayonet 11 without being restricted by the bayonet 11, and it is just an obstacle avoidance channel during assembly.

[0044] To install the radial elastic support 1 onto the base 8, only need to first push each spoke 18 into the bayonet 11 on the outer end side surface of the elastic support mounting seat 12, then expand the first connecting ring 1a to make the first connecting ring 1a deform and expand outwards, and then hang the first connecting ring 1a correspondingly on the first connecting ring slot 22, and the radial elastic support 1 can be fixed to the base 8.

[0045] The base 8 is a rectangular semi-open shell with an upward opening. The base 8 is integrally formed by injection molding of engineering plastics or die-casting of aluminum alloy. A total of 4 base fixing holes 19 for fixedly connecting with the muscle massager are provided on the left and right sides of the base 8. On either one side or both sides of the base 8 in the middle, there is a cable fixing bracket 16, and an inlet notch 20 is provided on the outer side of the cable fixing bracket 16.

[0046] In this embodiment, there are two radial elastic brackets 1. Bracket mounting grooves 23 are respectively provided on the front and rear parts of the circular bearing fixing hole 15 on the transmission rod 10. The second connecting ring 21 is fixedly sleeved in the bracket mounting groove 23 on the transmission rod 10. To install the radial elastic bracket 1 onto the transmission rod 10, only need to expand the second connecting ring 21 to make the second connecting ring 21 expand outwards, and then sleeve the second connecting ring 21 in the bracket mounting groove 23, then the radial elastic bracket 1 can be fixed to the transmission rod 10.

[0047] The bottom surface of the bracket mounting groove 23 and the inner hole of the second connecting ring 21 are circular axially or circular with one side being a plane or a polygon with 2 or more sides. The second connecting ring 21 is adapted to the bracket mounting groove 23 and has an interference fit with the bracket mounting groove 23. The inner and outer assembly surfaces of the polygon with 2 or more sides have a circumferential fixing effect, and the transmission rod 10 and the massage head 28 are not prone to circumferential rotation during operation.

[0048] The massage head 28 is provided with a connecting sleeve 29. An annular groove 9a is provided inside the connecting sleeve 29. An annular groove 9 is provided corresponding to the outside of the transmission rod 10. An "O" - shaped rubber ring 24 is provided in the annular groove 9. The "O" - shaped rubber ring 24 has an interference fit with the annular groove 9a on the inner side of the connecting sleeve 29. The transmission rod 10 is in plug - in and sliding fit with the connecting sleeve 29 of the massage head. The massage head 28 is cylindrical or oblate or spherical or U - shaped or mushroom - shaped.

[0049] The bearing 17 serving as an eccentric wheel is driven to perform eccentric motion. Through the elastic change of the radial elastic bracket 1, synchronous lateral equidistant translation and axial equidistant reciprocating linear motion of the transmission rod 10 are achieved.

[0050] After the motor 3, the bearing mounting seat 6, and the bearing 17 are assembled and installed, first insert the bearing 17 through the through - hole 4 at the bottom of the base 8, screw - connect the motor flange 7 to the bottom of the base 8 with motor fixing screws 2, then sleeve the lower opening of the circular bearing fixing hole 15 on the transmission rod 10 from the semi - open side of the base 8 onto the bearing 17, and then align the bearing gland 13 with the upper opening of the circular bearing fixing hole 15 and screw - connect it for fixation.

[0051] By setting the circular bearing fixing hole 15, when the motor 3 drives the bearing 17 to rotate eccentrically, the bearing 17 drives the transmission rod 10 to move forward and backward and left and right under the action of the circular bearing fixing hole 15. The radial elastic bracket 1 plays a role in the flexible connection and fixing of the transmission rod 10 relative to the fixed part of the fascia gun. The radial elastic bracket 1 can alleviate the movement vibration of the transmission rod 10 and other driven parts, and reduce the noise generated by the transmission rod 10 during the reciprocating switching movement.

[0052] This embodiment also provides a fascia gun including the transmission mechanism with the split radial elastic bracket 1 .

[0053] The fascia gun also includes a housing, a DC power supply 41 and an electric control board 33. The DC power supply 41, the electric control board 33 and the motor 3 are electrically connected. In this embodiment, the DC power supply 41 uses the DC power supply 41 built into the fascia gun, and the DC power supply 41 is preferably a lithium battery. It is understandable that the DC power supply 41 can also use an external power supply.

[0054] The housing comprises an upper housing 34, a lower housing 38 and a neck sleeve 30. An electric control board mounting portion is provided inside the upper housing 34, the electric control board 33 is fixedly arranged on the electric control board mounting portion, and the DC power supply 41 is plugged and fixed in the lower housing 38. The cable used to connect the DC power supply 41, the electric control board 33 and the motor 3 is inserted and fixed on the cable fixing frame 16 through the cable inlet notch 20 on the base 8. Alternatively, the DC power supply 41 is an external power supply, and the power socket 43 of the DC power supply 41 is fixed on the bottom plate 42 of the lower housing by snapping or screwing.

[0055] The transmission mechanism with a split radial elastic bracket is arranged between the upper shell 34 and the lower shell 38. Four fixing columns 37 corresponding to the four base fixing holes 19 are provided on the upper shell 34 or the lower shell 38. Vibration-damping washers 31 are sleeved on the fixing columns 37. The base 8 is fixedly connected to the fixing columns 37 by base fixing screws 32. Except for the four fixing points, the rest of the transmission mechanism with a split radial elastic bracket is suspended in the shell.

[0056] The upper shell 34 and the lower shell 38 are provided with a neck opening 36 at the front end to match the neck sleeve 30, and the neck sleeve 30 is fixed to the neck opening 36 by snapping or screwing. The upper shell 34 or the lower shell 38 is provided with a screw hole, and the upper shell 34 and the lower shell 38 are fixedly connected by a shell fixing screw 39.

[0057] A handle portion 40 is provided at the lower portion of the lower shell 38 , and a power button 35 is provided at the upper end surface of the upper shell 34 .

[0058] The present invention also provides a working method for the transmission mechanism with a split radial elastic support, and the method includes: the motor 3 drives the bearing mounting seat 6, the bearing mounting seat 6 drives the bearing 17 eccentrically arranged with the output shaft of the motor 3, and the bearing 17 as an eccentric wheel mechanism is driven to perform eccentric motion. Through the elastic change of the radial elastic support 1, the synchronous lateral equidistant translation and axial equidistant reciprocating linear motion of the transmission rod 10 are realized.

[0059] Embodiment 2

[0060] As Figure 6 、 7 shown, and in combination with Embodiment 1, the present embodiment provides a transmission mechanism with a split radial elastic support, including a radial elastic support 1, an eccentric wheel mechanism, a transmission rod 10, a massage head 28, and a base 8.

[0061] The radial elastic support 1 is a disc-shaped ring body. The radial elastic support 1 includes a first connecting ring 1a, a second connecting ring 21, and an elastic part. The elastic part is a disc-shaped elastic part. The first connecting ring 1a is used to connect the fixed part on the fascia gun, the second connecting ring 21 is fixedly connected to the transmission rod 10, and the inner and outer sides of the elastic part are integrally arranged on the first connecting ring 1a and the second connecting ring 21 respectively.

[0062] The eccentric wheel mechanism includes a bearing 17 as an eccentric wheel. The bearing 17 is a deep groove ball bearing or a rubber-coated deep groove ball bearing. In this embodiment, the eccentric wheel mechanism further includes a motor 3 and a bearing mounting seat 6. The bearing mounting seat 6 is fixedly connected to the output shaft 5 of the motor 3, the bearing 17 is fixedly installed on the bearing mounting seat 6, and the axis of the bearing 17 is parallel and offset from the axis of the output shaft 5 of the motor 3.

[0063] The motor 3 is installed below the base 8, and the axis of the output shaft 5 of the motor 3 is perpendicular to the axis of the transmission rod 10.

[0064] A circular bearing fixing hole 15 is provided on the transmission rod 10. The bearing 17 is fixedly arranged in the circular bearing fixing hole 15 and is rotationally matched with the transmission rod 10.

[0065] A bearing gland 13 is provided at the upper opening of the circular bearing fixing hole 15. One surface of the bearing gland 13 in contact with the bearing 17 is provided with a pressing surface. The pressing surface presses the upper end surface of the bearing 17 to limit the axial displacement of the bearing 17 and control the smoothness of the movement of the transmission rod 10. The bearing gland 13 is screwed to the transmission rod 10 through gland fixing screws 14.

[0066] Preferably, there are 3 or more circular through holes 26 or arc-shaped through holes 27 equidistantly arranged in the circumferential direction on the disc-shaped elastic part. The above-mentioned disc through holes can reduce the wind resistance of the reciprocating movement of the transmission rod 10, reduce the fluctuations and wind resistance noise caused by the high-speed telescopic and axial reciprocating movement of the disc, and the cross-section of the disc-shaped elastic part is of a structure shape with equal thickness inside and outside or thin in the middle and gradually thickening inside and outside.

[0067] The base 8 is the part fixed on the fascia gun fixedly connected to the radial elastic bracket 1. It can be understood that the first connection ring 1a of the radial elastic bracket 1 can also be directly fixedly connected to the housing of the fascia gun.

[0068] Elastic bracket mounting seats 12 are integrally provided at the front and rear ends of the base 8. The radial elastic bracket 1 is fixedly installed on the elastic bracket mounting seats 12. The elastic bracket mounting seats 12 are annular. A first connection ring slot 22 is provided on the outer peripheral surface of the elastic bracket mounting seat 12. The first connection ring slot 22 is U-shaped. The first connection ring 1a is fixedly connected by hanging on the first connection ring slot 22. The outer end side of the elastic bracket mounting seat 12 is in contact and cooperation with the inner side surface of the disc-shaped elastic part.

[0069] To install the radial elastic bracket 1 onto the base 8, just expand the first connection ring 1a outward and then correspondingly snap it onto the first connection ring slot 22, and the radial elastic bracket 1 can be fixed to the base 8.

[0070] The base 8 is a rectangular semi-open housing with an upward opening. The base 8 is integrally formed by injection molding of engineering plastics or die-casting of aluminum alloy. A total of 4 base fixing holes 19 for fixedly connecting to the fascia gun are provided on the left and right sides of the base 8. A cable fixing bracket 16 is provided in the middle on either one side or both sides of the base 8. An inlet notch 20 is provided on the outer side of the cable fixing bracket 16.

[0071] In this embodiment, there are two radial elastic brackets 1. Bracket mounting grooves 23 are respectively provided on the front and rear parts of the circular bearing fixing holes 15 on the transmission rod 10. The second connection ring 21 is fixedly sleeved in the bracket mounting grooves 23 on the transmission rod 10. To install the radial elastic bracket 1 onto the transmission rod 10, just expand the second connection ring 21 to make it expand outward, and then sleeve the second connection ring 21 in the bracket mounting grooves 23, and the radial elastic bracket 1 can be fixed to the transmission rod 10.

[0072] The bottom surface of the bracket installation groove 23 and the inner hole of the second connecting ring 21 are axially circular or circular with one side being a plane or two or more polygons, and the second connecting ring 21 is adapted to the bracket installation groove 23 and has an interference fit with the bracket installation groove 23. The two or more polygonal inner and outer assembly surfaces have a circumferential fixing effect, and the transmission rod 10 and the massage head 28 are not easy to rotate circumferentially during operation.

[0073] The massage head 28 is provided with a connecting sleeve 29, and an annular groove 9a is provided inside the connecting sleeve 29, and an annular groove 9 is provided on the outside of the corresponding transmission rod 10. An "○"-shaped rubber ring 24 is provided in the annular groove 9, and the "○"-shaped rubber ring 24 is interference fit with the annular groove 9a on the inner side of the connecting sleeve 29. The transmission rod 10 and the massage head connecting sleeve 29 are plug-in and slidingly fit. The massage head 28 is cylindrical, oblate, spherical, U-shaped or mushroom-shaped.

[0074] The bearing 17 as an eccentric wheel is driven to perform eccentric motion, and the transmission rod 10 is synchronously translated in the equidistant transverse direction and in the equidistant axial reciprocating linear motion through the elastic change of the radial elastic bracket 1.

[0075] After the motor 3, the bearing mounting seat 6 and the bearing 17 are assembled and installed, first insert the bearing 17 from the through hole 4 at the bottom of the base 8, screw the motor flange 7 to the bottom of the base 8 with the motor fixing screws 2, and then put the lower end of the circular bearing fixing hole 15 on the transmission rod 10 on the bearing 17 from the half-open side of the base 8, and then align the bearing cover 13 with the upper end of the circular bearing fixing hole 15 and screw it to fix it.

[0076] By setting the circular bearing fixing hole 15, when the motor 3 drives the bearing 17 to rotate eccentrically, the bearing 17 drives the transmission rod 10 to move forward and backward and left and right under the action of the circular bearing fixing hole 15, and the radial elastic bracket 1 plays a role in the flexible connection and fixing of the transmission rod 10 relative to the fixed part of the fascia gun. The radial elastic bracket 1 can alleviate the movement vibration of the transmission rod 10 and other driven parts, and reduce the noise generated by the transmission rod 10 during reciprocating reversing motion.

[0077] This embodiment also provides a fascia gun including the transmission mechanism with the split radial elastic bracket 1 .

[0078] The fascia gun also includes a housing, a DC power supply 41 and an electric control board 33. The DC power supply 41, the electric control board 33 and the motor 3 are electrically connected. In this embodiment, the DC power supply uses the DC power supply 41 built into the fascia gun, and the DC power supply 41 is preferably a lithium battery. It is understandable that the DC power supply 41 can also use an external power supply.

[0079] The housing includes an upper housing 34, a lower housing 38 and a neck sleeve 30. An electronic control board mounting portion is provided inside the upper housing 34, and the electronic control board 33 is fixedly arranged on the electronic control board mounting portion. The DC power supply 41 is plugged and fixed inside the lower housing 38. The cable for connecting the DC power supply 41, the electronic control board 33 and the above-mentioned motor 3 is passed through the inlet notch 20 on the base 8 and fixed on the cable fixing bracket 16. Alternatively, the DC power supply 41 is an external power supply, and the power socket 43 of the DC power supply 41 is snap-connected or screwed and fixed on the bottom plate 42 of the lower housing.

[0080] The transmission mechanism with a split radial elastic support is arranged between the upper housing 34 and the lower housing 38. Four fixing columns 37 corresponding to the four base fixing holes 19 are provided on the upper housing 34 or the lower housing 38. Vibration damping washers 31 are sleeved on the fixing columns 37. The base 8 is fixedly connected to the fixing columns 37 through base fixing screws 32. Except for the four fixing points, the rest of the transmission mechanism with a split radial elastic support is suspended inside the housing.

[0081] The upper housing 34 and the lower housing 38 are provided with neck openings 36 at the front end for cooperating with the neck sleeve 30. The neck sleeve 30 is snap-connected or screwed and fixed to the neck opening 36. Screw holes are provided on the upper housing 34 or the lower housing 38. The upper housing 34 and the lower housing 38 are fixedly connected through housing fixing screws 39.

[0082] A handle portion 40 is provided at the lower part of the lower housing 38, and a power button 35 is provided on the upper end face of the upper housing 34.

[0083] The present invention also provides a working method for the above-mentioned transmission mechanism with a split radial elastic support. The method includes: the motor 3 drives the bearing mounting seat 6, the bearing mounting seat 6 drives the bearing 17 eccentrically arranged with the output shaft of the motor 3. The bearing 17 as an eccentric wheel mechanism is driven to perform eccentric motion. Through the elastic change of the radial elastic support 1, the transmission rod 10 realizes synchronous lateral equidistant translation and axial equidistant reciprocating linear motion.

[0084] In addition to the above preferred embodiments, the present invention has other implementation manners. Those skilled in the art can make various deformations and improvements according to the present invention. As long as they do not depart from the spirit of the present invention, they should all fall within the scope defined by the appended claims of the present invention.

Claims

1. A transmission mechanism with a split radial elastic support, characterized in that: It includes a radial elastic support, an eccentric wheel mechanism and a transmission rod; The radial elastic support is a disc-shaped ring body. The radial elastic support includes a first connecting ring, a second connecting ring and an elastic part. The elastic part is a spoke-type elastic part or a disc-type elastic part. The first connecting ring is used to connect the fixed part on the fascia gun, the second connecting ring is fixedly connected to the transmission rod, and the inner and outer sides of the elastic part are integrally arranged on the first connecting ring and the second connecting ring respectively; The eccentric wheel mechanism includes a bearing as an eccentric wheel; A circular bearing fixing hole is provided on the transmission rod. The bearing is fixedly arranged in the circular bearing fixing hole and is rotationally matched with the transmission rod. The offset distance of the eccentric wheel mechanism is equal to the distance of the transverse and axial movement of the transmission rod; The bearing as the eccentric wheel is driven to perform eccentric motion. Through the elastic change of the radial elastic support, synchronous transverse equidistant translation and axial equidistant reciprocating linear motion of the transmission rod are realized; The transmission mechanism with a split radial elastic support further includes a base, which is the fixed part on the fascia gun fixedly connected to the radial elastic support. Elastic support mounting seats are integrally provided at the front and rear ends of the base. The radial elastic support is fixedly installed on the elastic support mounting seats. The elastic support mounting seats are annular. A first connecting ring clamping groove is provided on the outer peripheral surface of the elastic support mounting seat. The first connecting ring clamping groove is U-shaped. The first connecting ring is hung and fixed with the first connecting ring clamping groove. A bayonet corresponding to the spoke-type elastic part is provided on the outer end side of the elastic support mounting seat. The spoke-type elastic part is movably matched with the corresponding bayonet; There are two radial elastic supports. Support mounting grooves are respectively provided on the front and rear parts of the circular bearing fixing hole on the transmission rod. The second connecting ring is sleeved and fixed with the support mounting grooves on the transmission rod. The bottom surface of the support mounting groove and the inner hole of the second connecting ring are circular axially or circular with one side being a plane or a polygon with 2 or more sides. The second connecting ring is adapted to the support mounting groove and is in interference fit with the support mounting groove.

2. The transmission mechanism with a split radial elastic support according to claim 1, characterized in that: The radial elastic support is integrally formed of silicone, latex, rubber or polyurethane.

3. The transmission mechanism with a split radial elastic support according to claim 1, characterized in that: The spoke-type elastic part includes 3 or more spokes, and the cross-section of the spoke is circular or oval or rectangular.

4. The transmission mechanism with a split radial elastic support according to claim 1, characterized in that: 3 or more circular through holes or arc-shaped through holes are circumferentially equidistantly arranged on the disc-type elastic part, and the cross-section of the disc-type elastic part is of a structure shape with equal thickness inside and outside or thin in the middle and gradually thickening inside and outside.

5. The transmission mechanism with a split radial elastic support according to claim 1, characterized in that: The base is a rectangular semi-open shell with an upward opening.

6. The drive mechanism with a split radial elastic support according to claim 1, characterized in that: The base is integrally formed by injection molding of engineering plastics or die-casting of aluminum alloy.

7. A transmission mechanism with a split radial elastic support according to claim 1 or 5, characterized in that, A total of 4 base fixing holes for fixedly connecting with the fascia gun are provided on the left and right sides of the base.

8. The transmission mechanism with a split radial elastic bracket according to claim 1, characterized in that: The eccentric wheel mechanism further includes a motor and a bearing mounting seat. The bearing mounting seat is fixedly connected to the output shaft of the motor. The bearing is fixedly installed on the bearing mounting seat. The axis of the bearing is parallel to and offset from the axis of the output shaft of the motor. A through hole is provided at the bottom of the base. The bearing and the bearing mounting seat are sequentially inserted into the through hole to install the motor below the base. The axis of the output shaft of the motor is perpendicular to the axis of the transmission rod.

9. The transmission mechanism with a split radial elastic bracket according to claim 1, characterized in that: A bearing gland is provided at the upper opening of the circular bearing fixing hole. One surface of the bearing gland in contact with the bearing is provided with a pressing surface. The pressing surface presses the upper end surface of the bearing to limit the axial displacement of the bearing and control the smoothness of the movement of the transmission rod.

10. The transmission mechanism with a split radial elastic bracket according to claim 1, characterized in that: The transmission mechanism with a split radial elastic bracket further includes a massage head. A transmission rod connecting sleeve is provided inside the massage head. The transmission rod connecting sleeve is fixedly connected to the outer end of the transmission rod.

11. The transmission mechanism with a split radial elastic bracket according to claim 10, characterized in that: The massage head is cylindrical or flat-round or spherical or U-shaped or mushroom-shaped.

12. The transmission mechanism with a split radial elastic bracket according to claim 1 or 5, characterized in that: A cable fixing bracket is provided in the middle on any one side or both the left and right sides of the base. An inlet notch is provided on the outer side of the cable fixing bracket.

13. The working method of the transmission mechanism with a split radial elastic support according to claim 8, characterized in that, Comprising: The motor drives the bearing mounting seat, and the bearing mounting seat drives the bearing eccentrically arranged with the output shaft of the motor. The bearing serving as the eccentric wheel is driven to perform eccentric motion. Through the elastic change of the radial elastic bracket, synchronous lateral equidistant translation and axial equidistant reciprocating linear motion of the transmission rod are achieved.

14. A fascia gun, characterized in that: Comprising the transmission mechanism with a split radial elastic bracket according to any one of claims 1-12.

15. A fascia gun, characterized in that: Comprising the transmission mechanism with a split radial elastic bracket according to claim 8, a DC power supply, and an electronic control board. The DC power supply, the electronic control board, and the motor are electrically connected.

16. A fascia gun, characterized in that: It includes a transmission mechanism with a split radial elastic support as described in claim 15 and a housing. The housing includes an upper housing and a lower housing. An electronic control board mounting portion is provided inside the upper housing, and the electronic control board is fixedly arranged on the electronic control board mounting portion. The DC power supply is a self - contained battery or an external power supply. The battery of the DC power supply is inserted and fixed inside the lower housing, or the external power supply socket is clamped or screwed and fixed on the bottom plate of the lower housing. The transmission mechanism with a split radial elastic support is arranged between the upper housing and the lower housing. There are 4 fixing columns on the lower housing or the upper housing corresponding to 4 base fixing holes, and shock - absorbing washers are sleeved on the fixing columns. The base is fixedly connected to the fixing column through the base fixing hole and the shock - absorbing washer. Except for 4 fixing points, the rest of the transmission mechanism with a split radial elastic support is suspended inside the housing.

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