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 bracket. The bearing serving as an eccentric wheel of the transmission mechanism is driven to perform eccentric motion. The bearing is driven transversely around an oval bearing transmission hole, and through the elastic change of the radial elastic bracket, a synchronous axial equidistant reciprocating linear motion of the transmission rod is achieved. Due to the structural design of the split radial elastic bracket 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, extends 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 having a split radial elastic support. Background Art

[0002] With the progress and development of technology, people's living standards 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 human soft tissue massage tool that relaxes the body's soft tissues through high-frequency impacts. The fascia gun uses a specially made high-speed motor inside to drive the massage head, generating a high-frequency impact effect 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 an electric motor to drive an eccentric wheel, and the eccentric wheel drives a transmission rod to make a reciprocating motion. Since the reciprocating motion direction 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 having 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, comprising 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 kidney-shaped bearing transmission hole is provided on the transmission rod, the bearing is movably arranged in the kidney-shaped bearing transmission hole and is in transmission cooperation with the transmission rod, the long axis of the kidney-shaped bearing transmission hole is perpendicular to the axis of the transmission rod, the short axis length of the kidney-shaped bearing transmission hole is adapted to the diameter of the bearing, and the bearing has a lateral gap in the long axis direction of the kidney-shaped bearing transmission hole, and this gap is the stroke of the transmission rod moving linearly back and forth in the short axis or the axial direction of the transmission rod; the bearing as an eccentric wheel is driven to perform eccentric motion, the bearing rotates transversely around the kidney-shaped bearing transmission hole, and through the elastic change of the radial elastic support, the synchronous axial equidistant reciprocating linear motion of the transmission rod is realized.

[0006] Preferably, the radial elastic support is integrally formed of silicone, 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 circumferentially and equidistantly arranged on the disc-type elastic part, and the cross-section of the disc-type elastic part is a structure 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 support further includes a base, the base is the fixed part on the fascia gun fixedly connected with 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, and a bayonet corresponding to the spoke-type elastic part is provided on the outer end side surface of the elastic support mounting seat, and the spoke-type elastic part is in movable cooperation 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 fixedly connected to 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 mount. The bearing mount is fixedly connected to the output shaft of the motor. The bearing is fixedly installed on the bearing mount. The axis of the bearing is parallel to and offset from the axis of the output shaft of the motor. A through hole is formed at the bottom of the base. The bearing and the bearing mount 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 waist-shaped bearing transmission hole. The second connecting ring is sleeved and fixed to the bracket mounting groove 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 polygon 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 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.

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

[0017] Preferably, a cable fixing bracket is provided in the middle on either side or both the left and right sides of the base. An inlet notch is formed on the outer side 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 bracket.

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

[0020] Preferably, the fascia gun further includes a housing, which 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 bracket 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 damping washers are sleeved on the fixing columns. The base is fixedly connected to the fixing column through the base fixing hole and the damping washer. Except for 4 fixing points, the rest of the transmission mechanism with a split radial elastic bracket is suspended inside the housing.

[0021] The present invention also provides a working method of the above-mentioned transmission mechanism with a split radial elastic bracket. The method includes: 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, as an eccentric wheel, is driven to perform eccentric motion. The bearing drives horizontally through the waist-shaped bearing transmission hole, and through the elastic change of the radial elastic bracket, the transmission rod realizes synchronous axial equidistant reciprocating linear motion.

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

[0023] Due to the elastic bracket 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, extends the service life of the fascia gun, 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 sectional view;

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

[0026] Figure 3 3D view of the transmission mechanism with a split radial elastic bracket of the present invention;

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

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

[0029] Figure 6 This is the front view of the radial disc elastic brackets a and b of the present invention;

[0030] Figure 7 This is the exploded view of the fascia gun of the present invention;

[0031] Figure 8 This is the 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 - kidney-shaped bearing transmission 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 post, 38 - lower housing, 39 - housing fixing screw, 40 - handle part, 41 - DC power supply, 42 - lower housing bottom plate, 43 - power socket. Detailed implementation manners

[0033] The following further elaborates on the present invention in detail 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 part fixed on the fascia gun, and the second connecting ring 21 is fixedly connected to the transmission rod 10. The inner and outer sides of the elastic part are integrally provided on the first connecting ring 1a and the second connecting ring 21 respectively.

[0037] The eccentric wheel mechanism includes a bearing 17 serving as an eccentric wheel, and 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 mounted on the bearing mounting seat 6, and the axis of the bearing 17 is parallel to and offset from the axis of the output shaft 5 of the motor 3.

[0038] The motor 3 is mounted 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.

[0039] The transmission rod 10 is provided with a kidney-shaped bearing transmission hole 15. The bearing 17 is movably arranged in the kidney-shaped bearing transmission hole 15 and is in transmission cooperation with the transmission rod 10. The long axis of the kidney-shaped bearing transmission hole 15 is perpendicular to the axis of the transmission rod 10. The short axis length of the kidney-shaped bearing transmission hole 15 is adapted to the diameter of the bearing 17. The bearing 17 has a lateral gap in the long axis direction of the kidney-shaped bearing transmission hole 15, and this gap is the stroke of the transmission rod 10 in the short axis direction or the axial reciprocating linear motion of the transmission rod 10.

[0040] The upper opening of the kidney-shaped bearing transmission hole 15 is provided with a bearing gland 13. The 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 onto the transmission 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 elliptical 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 cross-section diameter of the spoke 18 is between 3 and 5 mm, the length of the spoke 18 is between 6 and 10 mm, the inner diameter of the first connecting ring 1a is between 28 and 33 mm, and the inner diameter of the second connecting ring 21 is between 5 and 8 mm.

[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] The front and rear ends of the base 8 are integrally provided with elastic bracket mounts 12. The radial elastic brackets 1 are fixedly installed on the elastic bracket mounts 12, and the elastic bracket mounts 12 are annular. A first connecting ring slot 22 is provided on the outer peripheral surface of the elastic bracket mount 12. The first connecting ring slot 22 is U-shaped. The first connecting ring 1a is fixedly connected to the first connecting ring slot 22 by hanging. A bayonet 11 corresponding to the spoke-shaped elastic part is provided on the outer end side of the elastic bracket mount 12. The spoke-shaped 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 bracket 1 onto the base 8, just first push each spoke 18 into the bayonet 11 on the outer end side of the elastic bracket mount 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 bracket 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 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 the left and right sides of the base 8. An inlet notch 20 is opened 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 waist-shaped bearing transmission hole 15 on the transmission rod 10. The second connecting ring 21 is fixedly sleeved on the bracket mounting groove 23 on the transmission rod 10. To install the radial elastic bracket 1 onto the transmission rod 10, just expand the second connecting ring 21 to make the second connecting ring 21 expand outwards, and then sleeve the second connecting ring 21 into the bracket mounting groove 23, and 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 is in 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 easily rotated circumferentially during operation.

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

[0049] The bearing 17 as an eccentric wheel is driven to perform eccentric motion, and the bearing 17 is transversely transmitted around the waist-shaped bearing transmission hole 15. Through the elastic change of the radial elastic bracket 1, the transmission rod 10 is synchronized with the axial equidistant reciprocating linear motion.

[0050] 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 and the bottom of the base 8 together with the motor fixing screws 2, and then put the lower end of the waist-shaped bearing transmission 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 waist-shaped bearing transmission hole 15 and screw it together.

[0051] By setting the waist-shaped bearing transmission 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 under the action of the waist-shaped bearing transmission hole 15, and the transmission rod 10 does not move left and right. The radial elastic bracket 1 plays a role in the flexible connection and fixation 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 impact noise of the bearing 17 on the front and rear side walls of the waist-shaped bearing transmission hole 15 when the bearing 17 reciprocates.

[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 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 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 fixedly arranged 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.

[0055] 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.

[0056] The upper housing 34 and the lower housing 38 are provided with neck openings 36 at the front end for mating 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, and the upper housing 34 and the lower housing 38 are fixedly connected through housing fixing screws 39.

[0057] 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 surface of the upper housing 34.

[0058] The present invention also provides a working method of 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 is driven to perform eccentric motion. The bearing 17 drives transversely around the kidney-shaped bearing transmission hole 15, and through the elastic change of the radial elastic support 1, the transmission rod 10 realizes synchronous axial equidistant reciprocating linear motion.

[0059] Embodiment 2

[0060] As Figure 6 、 7 shown and in combination with Embodiment 1, this 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. 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. The axis of the bearing 17 is parallel to and offset from the axis of the output shaft 5 of the motor 3.

[0063] 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.

[0064] The transmission rod 10 is provided with a kidney-shaped bearing transmission hole 15. The bearing 17 is movably arranged in the kidney-shaped bearing transmission hole 15 and is in transmission cooperation with the transmission rod 10. The long axis of the kidney-shaped bearing transmission hole 15 is perpendicular to the axis of the transmission rod 10. The short axis length of the kidney-shaped bearing transmission hole 15 is adapted to the diameter of the bearing 17. The bearing 17 has a lateral gap in the long axis direction of the kidney-shaped bearing transmission hole 15. This gap is the stroke of the transmission rod 10 in the short axis direction or the reciprocating linear motion in the axial direction of the transmission rod 10.

[0065] The upper opening of the kidney-shaped bearing transmission hole 15 is provided with a bearing gland 13. The surface of the bearing gland 13 in contact with the bearing 17 has 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, 3 or more circular through holes 26 or arc-shaped through holes 27 are circumferentially and equidistantly arranged on the disc-shaped elastic part. The above 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 telescoping and axial reciprocating movement of the disc, and the cross-section of the disc-shaped elastic part is a structure with equal thickness inside and outside or thin in the middle and gradually thickening inside and outside.

[0067] The base 8 is the fixed part 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.

[0068] Elastic support mounts 12 are integrally provided at the front and rear ends of the base 8. The radial elastic support 1 is fixedly mounted on the elastic support mounts 12, and the elastic support mounts 12 are annular. A first connecting ring slot 22 is provided on the outer peripheral surface of the elastic support mount 12. The first connecting ring slot 22 is U-shaped. The first connecting ring 1a is fixedly connected with the first connecting ring slot 22 by hanging. The outer end side of the elastic support mount 12 abuts and cooperates with the inner side of the disc-shaped elastic part.

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

[0070] 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 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 supports 1. Bracket mounting grooves 23 are respectively provided at the front and rear parts of the waist-shaped bearing transmission holes 15 on the transmission rod 10. The second connecting ring 21 is fixedly sleeved with the bracket mounting grooves 23 on the transmission rod 10. To install the radial elastic support 1 on the transmission rod 10, just expand the second connecting ring 21 to make it expand outward, and then sleeved the second connecting ring 21 in the bracket mounting grooves 23, and the radial elastic support 1 can be fixed to the transmission rod 10.

[0072] 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 is in 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 easy to rotate circumferentially during operation.

[0073] The massage head 28 is provided with a connecting sleeve 29. A connecting sleeve groove 9a is provided inside the connecting sleeve 29. A ring-shaped groove 9 is correspondingly provided outside the transmission rod 10. An "O"-shaped rubber ring 24 is provided in the ring-shaped groove 9. The "O"-shaped rubber ring 24 is in interference fit with the connecting sleeve 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 flat-round or spherical or U-shaped or mushroom-shaped.

[0074] The bearing 17 as an eccentric wheel is driven to perform eccentric motion, and the bearing 17 is transversely transmitted around the waist-shaped bearing transmission hole 15. Through the elastic change of the radial elastic bracket 1, the transmission rod 10 is synchronized with the axial equidistant reciprocating linear motion.

[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 and the bottom of the base 8 together with the motor fixing screws 2, and then put the lower end of the waist-shaped bearing transmission 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 waist-shaped bearing transmission hole 15 and screw it together.

[0076] By setting the waist-shaped bearing transmission hole 15, when the motor 3 drives the bearing 17 to rotate eccentrically, under the action of the waist-shaped bearing transmission hole 15, the bearing 17 drives the transmission rod 10 to move forward and backward, and the transmission rod 10 does not move left and right. The radial elastic support 1 plays a role in the flexible connection and fixation of the transmission rod 10 relative to the fixed part of the fascia gun. The radial elastic support 1 can alleviate the movement vibration of the transmission rod 10 and other driven parts, and reduce the impact noise of the bearing 17 on the front and rear side walls of the waist-shaped bearing transmission hole 15 when the bearing 17 reciprocates.

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

[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 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.

[0080] The transmission mechanism with a split radial elastic support is arranged between the upper housing 34 and the lower housing 38. Four fixing posts 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 posts 37. The base 8 is fixedly connected to the fixing posts 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 in the housing.

[0081] The upper housing 34 and the lower housing 38 are provided with neck openings 36 at the front end that cooperate with the neck sleeve 30. The neck sleeve 30 is fixedly connected to the neck opening 36 by snap connection or screw connection. 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 surface 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, is driven to perform eccentric motion. The bearing 17 drives transversely around the waist-shaped bearing transmission hole 15, and through the elastic change of the radial elastic support 1, the transmission rod 10 realizes synchronous 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 connection ring, a second connection ring, and an elastic part. The elastic part is a spoke-type elastic part or a disc-type elastic part. The first connection ring is used to connect the fixed part on the fascia gun. The second connection ring is fixedly connected to the transmission rod. The inner and outer sides of the elastic part are integrally arranged on the first connection ring and the second connection ring respectively; The eccentric wheel mechanism includes a bearing as an eccentric wheel; A kidney-shaped bearing transmission hole is provided on the transmission rod. The bearing is movably arranged in the kidney-shaped bearing transmission hole and is in transmission cooperation with the transmission rod. The long axis of the kidney-shaped bearing transmission hole is perpendicular to the axis of the transmission rod. The short axis length of the kidney-shaped bearing transmission hole is adapted to the diameter of the bearing. The bearing has a lateral gap in the long axis direction of the kidney-shaped bearing transmission hole, and this gap is the stroke of the transmission rod's reciprocating linear motion in the short axis or the axial direction of the transmission rod; The bearing used as an eccentric wheel is driven to perform eccentric motion. The bearing rotates transversely around the kidney-shaped bearing transmission hole. Through the elastic change of the radial elastic support, synchronous axial equidistant reciprocating linear motion of the transmission rod is achieved; 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 in a ring shape. A first connection ring slot is provided on the outer peripheral surface of the elastic support mounting seat. The first connection ring slot is in a U shape. The first connection ring is fixedly connected by hanging in the first connection ring slot. A bayonet corresponding to the spoke-type elastic part is provided on the outer end side surface of the elastic support mounting seat. The spoke-type elastic part is in movable cooperation with the corresponding bayonet; There are two radial elastic supports. Support mounting slots are respectively provided on the front and rear parts of the transmission rod where the kidney-shaped bearing transmission hole is located. The second connection ring is fixedly sleeved in the support mounting slots on the transmission rod. The bottom surface of the support mounting slot and the inner hole of the second connection ring are circular axially or circular with one side being a plane or a polygon with 2 or more sides. The second connection ring is adapted to the support mounting slot and is in interference fit with the support mounting slot.

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, oval, or rectangular.

4. The transmission mechanism with a split radial elastic support according to claim 1, characterized in that: The disc-shaped elastic part is circumferentially and equidistantly provided with 3 or more circular through holes or arc-shaped through holes, 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.

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 transmission 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 support 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 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 support according to claim 1, characterized in that: A bearing gland is provided at the upper opening of the kidney-shaped bearing transmission hole. One side 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 support according to claim 1, characterized in that: The transmission mechanism with a split radial elastic support 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 support according to claim 10, characterized in that: The massage head is cylindrical or flat circular or spherical or U-shaped or mushroom-shaped.

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

14. A fascia gun, characterized in that: Including the transmission mechanism with a split radial elastic support 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.

15. A fascia gun, characterized in that: A transmission mechanism with a split radial elastic bracket and a housing as described in claim 14, wherein 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 snap - connected or screwed and fixed on the bottom plate of the lower housing. The transmission mechanism with a split radial elastic bracket is arranged between the upper housing and the lower housing. Four fixing columns corresponding to four base fixing holes are provided on the lower housing or the upper housing, and damping washers are sleeved on the fixing columns. The base is fixedly connected to the fixing column through the base fixing hole and the damping washer. Except for the four fixing points, the rest of the transmission mechanism with a split radial elastic bracket is suspended inside the housing.

16. A working method of a transmission mechanism with a split radial elastic support according to claim 8, characterized in that, Comprising: The motor drives a bearing mounting seat, and the bearing mounting seat drives a bearing eccentrically arranged with the output shaft of the motor. The bearing, as an eccentric wheel, is driven to perform eccentric motion. The bearing drives transversely around a kidney - shaped bearing transmission hole, and through the elastic change of the radial elastic bracket, the synchronous axial equidistant reciprocating linear motion of the transmission rod is realized.

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