Transmission mechanism, fascia gun and working method with an integrated lateral elastic bracket

Abstract

The present invention provides a transmission mechanism, a fascia gun and a working method with an integrated transverse elastic bracket. The bearing serving as an eccentric wheel of the transmission mechanism is driven to perform eccentric motion, and the bearing is transversely transmitted around an oblong bearing transmission hole. Through the elastic change of a C-shaped elastic part, synchronous axial equidistant reciprocating linear motion of a transmission rod is achieved. Due to the adoption of the structural design of an integrated transverse 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 production costs, avoids running resistance and oil dust pollution, but also reduces 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 an integrated transverse elastic bracket. 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 human soft tissue massage tool that relaxes the soft tissues of the body 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 the deep layer of the muscle, achieving the effects of reducing local tissue tension, relieving pain, and promoting blood circulation. In traditional fascia gun transmission devices, most are motors driving eccentric wheels, and the eccentric wheels drive the transmission rod to make reciprocating linear motion. Since the direction of the reciprocating linear motion 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 an integrated transverse elastic bracket.

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

[0005] A transmission mechanism with an integrated transverse elastic bracket, comprising a base, an eccentric wheel mechanism and a transmission rod; the base is integrally formed, and elastic parts are provided at four corners of the base. The elastic parts are C-shaped with openings obliquely facing inwards. The elastic parts are symmetrically arranged in front and behind with respect to the longitudinal axis of the base, and a transmission rod connecting part is integrally provided between the inner feet of the front and rear groups of elastic parts. The left and right feet are respectively integrally connected to the base, and the transmission rod is fixedly connected to the transmission rod connecting part; the eccentric wheel mechanism includes a bearing serving as an eccentric wheel; a kidney-shaped bearing transmission hole is provided on the transmission rod, and 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, and the short axis length of the kidney-shaped bearing transmission hole is adapted to the diameter of the bearing. The bearing has a transverse gap in the long axis direction of the kidney-shaped bearing transmission hole, and this gap is the stroke of the transmission rod in the short axis direction or the reciprocating linear motion in the axial direction of the transmission rod; the bearing serving as an eccentric wheel is driven to perform eccentric motion, and the bearing rotates transversely around the kidney-shaped bearing transmission hole. Through the elastic change of the C-shaped elastic part, synchronous axial equidistant reciprocating linear motion of the transmission rod is realized.

[0006] Preferably, the base is a rectangular semi-open shell with an upward opening.

[0007] Preferably, the base is integrally formed by injection molding of engineering plastics.

[0008] Preferably, a total of 4 base fixing holes for fixedly connecting to a fascia gun are provided on the left and right sides of the base.

[0009] 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, and 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.

[0010] Preferably, the transmission rod is separately provided. Fixing grooves are provided at the front end and the rear end of the transmission rod. The transmission rod connecting part is a fixing protrusion adapted to the fixing groove. The axial cross-section of the fixing groove and the fixing protrusion is in the shape of an "Ω" symbol or a "C" shape or a dovetail shape. The fixing protrusions on the inner sides of the transmission rod connecting parts of the two transverse elastic brackets are respectively clamped and fixed to the two bracket mounting grooves at the front end and the rear end of the transmission rod; alternatively, the fixing protrusions on the inner sides of the transmission rod connecting parts of the two transverse elastic brackets are screwed to the two bracket mounting grooves of the transmission rod, or the fixing protrusions on the inner sides of the transmission rod connecting parts of the two transverse elastic brackets are clamped and screwed to the two bracket mounting grooves of the transmission rod.

[0011] Preferably, 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, 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.

[0012] Preferably, a transmission rod for fixing the massage head is integrally provided outside the transmission rod connection part at the front of the base. A transmission rod connection sleeve is provided inside the massage head, and the transmission rod connection sleeve is detachably and fixedly connected to the outer end of the transmission rod.

[0013] Preferably, the massage head is cylindrical or oblate or spherical or U-shaped or mushroom-shaped.

[0014] Preferably, a cable fixing bracket is provided in the middle on either side or both sides of the base, and an inlet notch is provided on the outside of the cable fixing bracket.

[0015] The present invention also provides a fascia gun, including the transmission mechanism with the integral transverse elastic bracket described above.

[0016] 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.

[0017] Preferably, the fascia gun further includes a housing, which includes an upper housing and a lower housing. An electronic control board mounting part is provided inside the upper housing, and the electronic control board is fixedly arranged on the electronic control board mounting part. The DC power supply is a built-in 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 at the bottom of the lower housing. The transmission mechanism with the integral transverse elastic bracket is arranged between the upper housing and the lower housing. There are 4 fixing columns on the upper housing or the lower 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 the integral transverse elastic bracket is suspended inside the housing.

[0018] The present invention also provides a working method of the above-mentioned transmission mechanism with the integral transverse elastic bracket. 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, and the bearing as an eccentric wheel is driven to perform eccentric motion. The bearing rotates horizontally around the kidney-shaped bearing transmission hole, and through the elastic change of the C-shaped elastic part, the synchronous axial equal-distance reciprocating linear motion of the transmission rod is realized.

[0019] The above-mentioned transmission mechanism, fascia gun and working method with an integrated transverse elastic bracket have the following outstanding advantages compared with the prior art:

[0020] Due to the adoption of the structural design of an integrated transverse elastic bracket without a guide rod and a guide sleeve, there is no friction and lubrication between the moving parts of the fascia gun. This 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, and has a simple structure, is small and portable, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 For the present invention Figure 2 A-A cross-sectional view;

[0022] Figure 2 Front view of the transmission mechanism of the present invention with an integrated transverse elastic bracket;

[0023] Figure 3 Schematic diagram of the structure of the transmission mechanism of the present invention with an integrated transverse elastic bracket without a bearing cover;

[0024] Figure 4 Bottom view of the present invention;

[0025] Figure 5 For the present invention Figure 4 Left view;

[0026] Figure 6 Stereogram of the present invention;

[0027] Figure 7-1 Right view of the transmission rod of the present invention;

[0028] Figure 7-2 Front view of the transmission rod of the present invention;

[0029] Figure 7-3 Left view of the transmission rod of the present invention;

[0030] Figure 8-1 Right view of the base of the present invention;

[0031] Figure 8-2 Front view of the base of the present invention;

[0032] Figure 8-3 Left view of the base of the present invention;

[0033] Figure 9 Exploded view of the transmission mechanism of the present invention with an integrated transverse elastic bracket;

[0034] Figure 10 Exploded view of the fascia gun of the present invention;

[0035] Figure 11 Schematic diagram of the power socket of the lower housing of the fascia gun of the present invention.

[0036] In the figure:

[0037] 1 - Elastic part, 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 - Transmission rod connecting part, 11a - Fixed protrusion, 12 - Fixed groove, 13 - Bearing gland, 14 - Gland fixing screw, 15 - Waist-shaped bearing transmission hole, 16 - Cable fixing bracket, 17 - Bearing, 18 - Transmission rod fixing screw, 19 - Base fixing hole, 20 - Inlet notch, 24 - "O"-shaped rubber ring, 28 - Massage head, 29 - Connecting sleeve, 30 - Neck sleeve, 31 - Vibration damping washer, 32 - Base fixing screw, 33 - Electric control board, 34 - Upper housing, 35 - Power button, 36 - Neck opening, 37 - Fixed 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 manners

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] As Figure 1-11 shown, a transmission mechanism with an integrated transverse elastic bracket includes an eccentric wheel mechanism, a transmission rod 10, a massage head 28, and a base 8.

[0040] The base 8 is integrally formed, and elastic parts 1 are provided at the four corners of the base 8. The elastic parts 1 are C-shaped and the openings are obliquely inward. The elastic parts 1 are symmetrically arranged in front and behind with respect to the longitudinal axis of the base 8. A transmission rod connecting part 11 is integrally provided between the inner feet of the front and rear groups of elastic parts 1, and the left and right feet are respectively integrally connected to the base 8. The transmission rod 10 is fixedly connected to the transmission rod connecting part 11.

[0041] 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.

[0042] A through hole 4 is opened at the bottom of the base 8. The bearing 17 and the bearing mounting seat 6 are sequentially inserted into the through hole 4 to install the motor 3 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.

[0043] A kidney-shaped bearing transmission hole 15 is provided on the transmission rod 10. 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 length of the short axis 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 reciprocating linear motion in the axial direction of the transmission rod 10.

[0044] The C-shaped elastic part 1 can undergo both lateral elastic deformation and axial elastic deformation along the axial direction of the transmission rod 10. However, due to the setting of the kidney-shaped bearing transmission hole 15, the transmission rod 10 only undergoes reciprocating linear motion in the axial direction, and thus the C-shaped elastic part 1 only undergoes axial elastic deformation along the axial direction of the transmission rod 10.

[0045] A bearing gland 13 is provided at the upper opening of the kidney-shaped bearing transmission hole 15. One side of the bearing gland 13 in contact with the bearing 17 has 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 transmission rod 10. The bearing gland 13 is screwed onto the transmission rod 10 through gland fixing screws 14.

[0046] 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. 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, and an inlet notch 20 is formed on the outside of the cable fixing bracket 16.

[0047] The transmission rod 10 is separately provided. Fixing grooves 12 are provided at the front end and the rear end of the transmission rod 10. The transmission rod connecting part 11 has fixing protrusions 11a adapted to the fixing grooves 12. The axial cross-sections of the fixing grooves and the fixing protrusions are in the shape of the symbol "Ω", or "C", or dovetail. The fixing protrusions 11a on the inner sides of the transmission rod connecting parts 11 at the front end and the rear end are respectively clamped and fixed with the two fixing grooves 12 at the front end and the rear end of the transmission rod 10. It can be understood that the fixing protrusions 11a on the inner sides of the transmission rod connecting parts 11 at the front end and the rear end can also be respectively screwed and fixed with the two fixing grooves 12 at the front end and the rear end of the transmission rod 10, or the fixing protrusions 11a on the inner side of the transmission rod connecting part 11 of the lateral elastic support are clamped and screwed and fixed with the support mounting groove 12 of the transmission rod.

[0048] A transmission rod 10 for fixing a massage head 28 is also integrally provided on the outside of the transmission rod connecting part 11 at the front of the base 8. The massage head 28 is provided with a connecting sleeve 29, and a connecting sleeve groove 9a is provided in the connecting sleeve 29. 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 has an interference fit with the connecting sleeve 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 slidably matched. 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, and the transmission rod 10 is synchronously axially equidistantly reciprocating linear motion is achieved through the elastic change of the C-shaped elastic part 1.

[0050] The present invention also provides a fascia gun comprising the transmission mechanism with the above-mentioned integrated transverse elastic bracket.

[0051] The fascia gun also includes a housing, a DC power supply 41 and an electric control board 33, and 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 a battery built into the fascia gun, and the battery is preferably a lithium battery. It is understandable that the DC power supply 41 can also use an external power supply.

[0052] 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.

[0053] The transmission mechanism with a split transverse 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 transverse elastic bracket is suspended in the shell.

[0054] The upper housing 34 and the lower housing 38 are provided with a neck opening 36 at the front end, which is matched with the neck sleeve 30, and the neck sleeve 30 is fixedly connected to the neck opening 36 by clamping or screwing. The upper housing 34 or the lower housing 38 is provided with screw holes, and the upper housing 34 and the lower housing 38 are fixedly connected by housing fixing screws 39.

[0055] The lower part of the lower housing 38 is provided with a handle part 40, and the upper end surface of the upper housing 34 is provided with a power button 35.

[0056] The present invention also provides a working method of the transmission mechanism with the integrated transverse elastic bracket, 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 is driven to perform eccentric motion. The bearing 17 is transversely transmitted around the kidney-shaped bearing transmission hole 15, and through the elastic change of the C-shaped elastic part 1, the synchronous axial equidistant reciprocating linear motion of the transmission rod 10 is realized.

[0057] In addition to the above preferred embodiments, the present invention has other implementation manners. Those skilled in the art can make various changes and deformations according to the present invention. As long as they do not depart from the spirit of the present invention, they shall fall within the scope defined by the appended claims of the present invention.

Claims

1. A transmission mechanism with an integrated transverse elastic bracket, characterized in that: it includes a base, an eccentric wheel mechanism and a transmission rod; the base is integrally formed, and elastic parts are provided at the four corners of the base. The elastic parts are C-shaped and the openings are obliquely inward. The elastic parts are symmetrically arranged in front and back with respect to the longitudinal axis of the base. A transmission rod connecting part is integrally provided between the inner feet of the front and back groups of elastic parts, and the left and right side feet are respectively integrally connected to the base. The transmission rod is fixedly connected to the transmission rod connecting part; 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 transverse gap in the long axis direction of the kidney-shaped bearing transmission hole, and this gap is the stroke of the transmission rod in the short axis direction or the axial direction of the transmission rod for reciprocating linear motion; the bearing as the eccentric wheel is driven to perform eccentric motion, and the bearing rotates transversely around the kidney-shaped bearing transmission hole. Through the elastic change of the C-shaped elastic part, synchronous axial equidistant reciprocating linear motion of the transmission rod is realized; 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 opened 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; the transmission rod is separately arranged. Fixed grooves are provided at the front end and the rear end of the transmission rod. The transmission rod connecting part is a fixed protrusion adapted to the fixed groove. The axial cross-section of the fixed groove and the fixed protrusion is in the shape of an "Ω" symbol or a "C" shape or a dovetail shape. The fixed protrusions on the inner sides of the transmission rod connecting parts of the two transverse elastic brackets are respectively clamped and fixed with the two bracket mounting grooves at the front end and the rear end of the transmission rod, or the fixed protrusions on the inner sides of the transmission rod connecting parts of the two transverse elastic brackets are screwed and fixed with the two bracket mounting grooves of the transmission rod, or the fixed protrusions on the inner sides of the transmission rod connecting parts of the two transverse elastic brackets are clamped and screwed and fixed with the two bracket mounting grooves of the transmission rod.

2. The transmission mechanism with an integrated transverse elastic bracket according to claim 1, characterized in that: the base is a rectangular semi-open shell with an upward opening.

3. The transmission mechanism with an integrated transverse elastic bracket according to claim 2, characterized in that: the base is integrally formed by injection molding of engineering plastics.

4. The transmission mechanism with an integrated transverse elastic bracket according to claim 2, characterized in that: a total of 4 base fixing holes for fixedly connecting with a fascia gun are provided on the left and right sides of the base.

5. The transmission mechanism with an integrated transverse elastic bracket according to claim 1, characterized in that: The upper opening of the kidney-shaped bearing transmission hole is provided with a bearing gland. 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.

6. A transmission mechanism with an integrated transverse elastic bracket according to claim 1, characterized in that: A transmission rod for fixing a massage head is also integrally provided outside the transmission rod connection part at the front of the base. A transmission rod connection sleeve is arranged inside the massage head, and the transmission rod connection sleeve is detachably and fixedly connected to the outer end of the transmission rod.

7. A transmission mechanism with an integrated transverse elastic bracket according to claim 6, characterized in that: The massage head is cylindrical or flat-round or spherical or U-shaped or mushroom-shaped.

8. A transmission mechanism with an integrated transverse elastic bracket according to claim 1 or 2 or 4, characterized in that: A cable fixing bracket is provided in the middle on either side or both sides of the base. An inlet notch is provided on the outside of the cable fixing bracket.

9. The working method of the transmission mechanism with an integrated transverse elastic bracket according to claim 1, characterized in that, including: 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. The bearing rotates horizontally around the kidney-shaped bearing transmission hole, and through the elastic change of the C-shaped elastic part, the synchronous axial equal-distance reciprocating linear motion of the transmission rod is realized.

10. A fascia gun, characterized in that: It includes the transmission mechanism with an integrated transverse elastic bracket according to any one of claims 1-8.

11. A fascia gun, characterized in that: It includes the transmission mechanism with an integrated transverse elastic bracket according to claim 1, a DC power supply, and an electronic control board. The DC power supply, the electronic control board, and the motor are electrically connected.

12. A fascia gun, characterized in that: It includes the transmission mechanism with an integrated transverse elastic bracket according to claim 11 and a housing. The housing includes an upper housing and a lower housing. An electronic control board mounting part is provided inside the upper housing, and the electronic control board is fixedly arranged on the electronic control board mounting part. 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 an integrated transverse elastic bracket is arranged between the upper housing and the lower housing. Four fixing columns corresponding to the four base fixing holes are provided on the lower housing or the upper housing. Vibration damping washers are sleeved on the fixing columns, and the base is fixedly connected to the fixing columns through the base fixing holes and the vibration damping washers. Except for the four fixing points, the rest of the transmission mechanism with an integrated transverse elastic bracket is suspended inside the housing.

Images