CN213048093U

CN213048093U - Vibration driving structure and muscle massage instrument with same

Info

Publication number: CN213048093U
Application number: CN202020364417.7U
Authority: CN
Inventors: 张文
Original assignee: Sichuan Qianli Beoka Medical Technology Inc
Current assignee: Sichuan Qianli Beoka Medical Technology Inc
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2021-04-27
Anticipated expiration: 2030-03-20

Abstract

The utility model provides a vibration driving structure and a muscle massage instrument with the same, wherein the vibration driving structure comprises a bracket, a motor component, a linkage structure and a piston rod, and the bracket is arranged in the muscle massage instrument; the motor assembly comprises a motor and an eccentric wheel, the motor is arranged on the bracket, the eccentric wheel is provided with a body parallel to two end faces, and an output shaft of the motor is fixedly connected with one end face of the body so as to drive the eccentric wheel to rotate; the other end surface of the eccentric wheel is hinged with one end of the linkage structure, the hinged position is a connecting point, and the rotating shaft of the eccentric wheel is positioned on the connecting line of the connecting point and the mass center; one end of the piston rod is hinged to the other end of the linkage structure, the other end of the piston rod is connected with a massage head of the muscle massage instrument, the motor component drives the piston rod to reciprocate in the muscle massage instrument through the linkage structure, and the vibration sense is weakened through designing the mass center of the eccentric wheel on a connecting line of the connecting point and the rotating shaft, so that the use experience of a user is well improved.

Description

Vibration driving structure and muscle massage instrument with same

Technical Field

The utility model relates to a muscle massage equipment technical field especially relates to a vibration drive structure and have its muscle massage appearance.

Background

The muscle massage appearance is through the vertical vibration of different frequencies and intensity to muscle, collapses pathological change tissue, eliminates painful etiology, and the muscle massage appearance generally includes power supply device, vibration drive structure and massage head, and power supply device provides operating voltage to vibration drive structure, and vibration drive structure passes through the piston rod piece and drives the muscle surface that the massage head acted on needs massage to reach deep massage's effect.

At present, the common muscle massage instrument adopts high-frequency vibration to realize the massage effect, the vibration of the massage head is realized through the reciprocating motion mechanism of the vibration drive structure, refer to chinese patent document CN201821592337.6 and disclose the reciprocating motion subassembly of the massage equipment, which comprises a transmission bracket, a flexible transmission linkage device and a piston, the piston rod of the piston is connected with the massage head to drive the massage head to vibrate, because the piston rod reciprocates at high speed in the piston rod sleeve, the stability is poor and the vibration is large, thereby the functional stability and the noise of the massage equipment are large, and the defect of poor use experience is brought.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the technical defects of large vibration and poor stability of the muscle massage instrument in the prior art due to the high-speed reciprocating motion of the piston rod.

In order to achieve the above object, the utility model provides a vibration driving structure, which is suitable for a muscle massage instrument and provides vibration output for the muscle massage instrument, and comprises a bracket, a motor component, a linkage structure and a piston rod, wherein the bracket is arranged in the muscle massage instrument; the motor assembly comprises a motor and an eccentric wheel, the motor is arranged on the bracket, the eccentric wheel is provided with a body parallel to two end faces, and an output shaft of the motor is fixedly connected with one end face of the body so as to drive the eccentric wheel to rotate; the other end surface of the eccentric wheel is hinged with one end of the linkage structure, the hinged position is a connecting point, and the mass center of the eccentric wheel is positioned on the connecting line of the connecting point and the rotating shaft; one end of the piston rod is hinged with the other end of the linkage structure, the other end of the piston rod is connected with a massage head of the muscle massage instrument, the motor component drives the piston rod to reciprocate in the muscle massage instrument through the linkage structure, the center of mass of the eccentric wheel is designed on the connecting line of the connecting point and the rotating shaft, so that the centrifugal force generated by the eccentric wheel in high-speed rotation counteracts the first-order reciprocating inertia force of a part of reciprocating parts, the resultant force fluctuation of the vibration driving structure acting on the shell of the muscle massage instrument is small, the vibration sense is weakened, and the use experience of a user is well improved.

Furthermore, the sum of the mass of the linkage structure, the mass of the piston rod and the mass of the massage head is more than or equal to 60g and less than or equal to 100 g; the distance between the connecting point and the rotating shaft is an eccentricity which is more than or equal to 4.0mm and less than or equal to 5.5 mm; the distance between the mass center and the rotating shaft is more than or equal to 3.5mm and less than or equal to 5 mm; the mass of the eccentric wheel is more than or equal to 45 and less than or equal to 65g, under the condition of a certain range of load and amplitude, the weight and the shape of the eccentric wheel influence the dynamic balance in the reciprocating motion, wherein the shape reflects corresponding influence through the eccentric distance and the distance between the mass center and the rotating shaft, so that in order to ensure the optimal dynamic balance effect, the weight and the shape of the eccentric wheel are correspondingly adjusted, namely the eccentric distance, the distance between the mass center and the rotating shaft are adjusted.

Furthermore, the rotating speed of the eccentric wheel is more than or equal to 1500 r/min.

Furthermore, the eccentric wheel is provided with a fan-shaped body, one end face of the body is provided with a mounting hole, the other end face of the body is provided with a connecting shaft, an output shaft of the motor is inserted into the mounting hole, one end of the linkage structure is hinged with the connecting shaft, the rotation of the eccentric wheel is further realized through the output shaft of the motor, the linkage structure is synchronously driven to reciprocate, and the purpose of converting the rotation of the output shaft into the reciprocating motion of the linkage mechanism is realized.

Further, the body is in a fan shape placed horizontally, the fan shape is symmetrical along the center of a vertical plane, the mounting hole is formed in the upper end face of the body, and the connecting shaft is arranged on the lower end face of the body.

Furthermore, the mounting hole is formed along the end face perpendicular to the body, the connecting shaft vertically protrudes along the end face of the body, the connecting shaft is located on one side, close to the circle center, of the fan-shaped mounting hole relative to the mounting hole, and the axes of the mounting hole and the connecting shaft are located in a central symmetrical plane in the vertical direction of the fan-shaped mounting hole and the connecting shaft at the same time.

Furthermore, the linkage structure comprises a connecting rod, one end of the connecting rod is provided with a connecting hole, a first bearing is arranged in the connecting hole, and the connecting shaft is correspondingly inserted into a bearing hole of the first bearing, so that the connection between the connecting rod and the eccentric wheel is realized.

Furthermore, the other end of the connecting rod is provided with a transmission hole, one end of the piston rod is provided with an opening corresponding to the transmission hole, and the transmission hole is hinged to the opening through a pin.

In order to achieve the above object, the present invention further provides a muscle massage apparatus, which comprises a housing, and a power supply module and a vibration driving structure electrically connected to the housing, wherein the vibration driving structure is any one of the vibration driving structures.

The utility model provides a vibration driving structure and have its muscle massage appearance, through the barycenter design with the eccentric wheel on the line of tie point and revolving axle for the eccentric wheel offsets the first-order reciprocal inertial force of part reciprocating member at the centrifugal force of high-speed rotatory formation, so that this vibration driving structure is used in the undulant very little of resultant force on muscle massage appearance casing, thereby the sense of vibration is weakened, the wholeness ability of vibration driving structure has been improved, make user's use experience obtain fine promotion.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the following provides a detailed description of the present invention with reference to the embodiments of the present invention and the accompanying drawings.

FIG. 1 is a perspective view of the muscle massage apparatus of the present invention;

FIG. 2 is an exploded view of the muscle massager of FIG. 1;

FIG. 3 is an exploded view of the vibration-driven structure of the muscle massager shown in FIG. 1;

FIG. 4 is an enlarged perspective view of the eccentric of the vibration-powered structure of FIG. 3 at another angle;

fig. 5 is an enlarged plan view of the eccentric wheel of the vibration driving structure shown in fig. 3.

The reference numerals in the drawings are explained below.

100-a vibration-driven structure; 1-a scaffold; 2-a motor assembly; 21-a motor; 22-eccentric wheel;

221-a body; 222-mounting holes; 223-a connecting shaft; 3-linkage structure; 31-a connection hole;

32-a drive bore; 4-a piston rod; 41-opening a hole; 5-a bearing; 6-pin; 7-a bearing;

200-massage head; 300-a housing; 400-power module.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

A specific embodiment of the muscle massage apparatus shown in fig. 1 to 3 comprises a housing 300, and a power supply assembly 400 and a vibration driving structure 100 which are arranged in the housing 300 and electrically connected, wherein the vibration driving structure 100 is connected with and mounted with a massage head 200, wherein the vibration driving structure 100 comprises a bracket 1, a motor assembly 2, a linkage structure 3 and a piston rod 4, and the bracket 1 is mounted in the muscle massage apparatus; the motor component 2 comprises a motor 21 and an eccentric wheel 22, the motor 21 is arranged on the bracket 1, the eccentric wheel 22 is provided with a body 221 which is parallel to two end faces, and an output shaft of the motor 21 is fixedly connected with one end face of the body 221 so as to drive the eccentric wheel 22 to rotate; the other end surface of the eccentric wheel 22 is hinged with one end of the linkage structure 3, the hinged position is a connecting point, and the mass center of the eccentric wheel 22 is positioned on a connecting line of the connecting point and the rotating shaft; one end of the piston rod 4 is hinged with the other end of the linkage structure 3, the other end of the piston rod 4 is connected with a massage head 200 of the muscle massage instrument, and the motor component 2 drives the piston rod 4 to reciprocate in the muscle massage instrument through the linkage structure 3.

In the muscle massage device, the mass center of the eccentric wheel 22 is designed on the connecting line of the connecting point and the rotating shaft, so that the centrifugal force generated by the high-speed rotation of the eccentric wheel 22 counteracts the first-order reciprocating inertia force of a part of reciprocating components, the resultant force fluctuation of the vibration driving structure 100 acting on the shell 300 of the muscle massage device is small, the vibration sense is weakened, and the use experience of a user is well improved.

Specifically, as shown in fig. 3 to 5, the eccentric wheel 22 has a fan-shaped body 221, the body 221 is horizontally placed, the fan-shaped body 221 is centrosymmetric along a vertical plane, one end surface of the body 221 is provided with a mounting hole 222, the other end surface of the body 221 is provided with a connecting shaft 223, an axis of the connecting shaft 223 is a connecting point, an output shaft of the motor 21 is inserted into the mounting hole 222, an axis of the mounting hole 222 is a rotating shaft, one end of the linkage structure 3 is hinged to the connecting shaft 223, so that the rotation of the eccentric wheel 22 is realized through the output shaft of the motor 21, and the linkage structure 3 is synchronously driven to reciprocate, that is, the rotation of the output shaft is converted into the reciprocating motion.

The mounting hole 222 is formed along the upper end face perpendicular to the body 221, the connecting shaft 223 protrudes along the lower end face perpendicular to the body 221, the connecting shaft 223 is located on one side, close to the circle center, of the sector relative to the mounting hole 222, and the axes of the mounting hole 222 and the connecting shaft 223 are located in the central symmetry plane of the sector vertical direction at the same time.

Meanwhile, in the present embodiment, the rotation speed of the eccentric wheel 22 is not less than 1500r/min, the distance between the connecting shaft and the rotating shaft is an eccentricity, that is, the distance between the axis of the connecting shaft 223 and the axis of the rotating shaft is an eccentricity, in the present embodiment, the sum of the masses of the linkage structure 3, the piston rod 4 and the massage head 200 is not less than 60g and not more than 100 g; under the condition of a certain range of load and amplitude, the weight and the shape of the eccentric wheel 22 influence the dynamic balance in the reciprocating motion, wherein the shape reflects the corresponding influence through the eccentric distance and the distance between the mass center and the rotating shaft, therefore, in order to ensure the best dynamic balance effect, the weight and the shape of the eccentric wheel 22 are correspondingly adjusted, namely, the eccentric distance, the distance between the mass center and the rotating shaft are adjusted, as a preferred embodiment, the eccentric distance is more than or equal to 4.0mm and less than or equal to 5.5mm, the distance between the mass center and the rotating shaft is more than or equal to 3.5mm and less than or equal to 5mm, and the mass of the eccentric wheel 22 is more than or equal to 45 and less than or equal to.

In addition, as an alternative embodiment, as shown in fig. 2 and 3, the linkage structure 3 includes a connecting rod, one end of the connecting rod is provided with a connecting hole 31, a first bearing 5 is arranged in the connecting hole 31, and a connecting shaft 223 is correspondingly inserted in a bearing hole of the first bearing 5, so as to realize the hinge joint between the connecting rod and the eccentric wheel 22; the other end of the connecting rod is provided with a transmission hole 32, a second bearing 7 is arranged in the transmission hole 32, one end of the piston rod 4 is provided with an opening 41 corresponding to the transmission hole 32, and the transmission hole 32 is hinged to the opening 41 through a pin 6.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A vibration-powered structure (100) adapted for use with a muscle massage machine and providing a vibratory output thereto, comprising:

the support (1) is arranged in the muscle massage instrument;

the motor assembly (2) comprises a motor (21) and an eccentric wheel (22), the motor is installed on the bracket (1), the eccentric wheel (22) is provided with a body (221) which is parallel to two end faces, and an output shaft of the motor (21) is fixedly connected with one end face of the body (221) to drive the eccentric wheel (22) to rotate;

the other end face of the eccentric wheel (22) is hinged with one end of the linkage structure (3) at a connecting point, and the mass center of the eccentric wheel (22) is positioned on a connecting line of the connecting point and the rotating shaft; and

the massage device comprises a piston rod (4), one end of the piston rod (4) is hinged to the other end of a linkage structure (3), the other end of the piston rod (4) supplies massage heads (200) of the muscle massage instrument to be connected, and a motor component (2) drives the piston rod (4) to reciprocate in the muscle massage instrument through the linkage structure (3).

2. The vibration driving structure (100) according to claim 1, wherein the sum of the masses of the linkage structure (3), the piston rod (4) and the massage head (200) is greater than or equal to 60g and less than or equal to 100 g; the distance between the connecting point and the rotating shaft is an eccentricity, and the eccentricity is more than or equal to 4.0mm and less than or equal to 5.5 mm; the distance between the mass center and the rotating shaft is more than or equal to 3.5mm and less than or equal to 5 mm; the mass of the eccentric wheel (22) is more than or equal to 45g and less than or equal to 65 g.

3. The vibrating drive structure (100) according to claim 2, wherein the rotational speed of the eccentric (22) is greater than or equal to 1500 r/min.

4. The vibration driving structure (100) according to any one of claims 1 to 3, wherein the eccentric wheel (22) has a fan-shaped body (221), one end surface of the body (221) is provided with a mounting hole (222), the other end surface of the body (221) is provided with a connecting shaft (223), the output shaft of the motor (21) is inserted in the mounting hole (222), and one end of the linkage structure (3) is hinged with the connecting shaft (223).

5. The vibration driving structure (100) according to claim 4, wherein the body (221) has a horizontally placed fan shape, and the fan shape is centrosymmetric along a vertical plane, an upper end surface of the body (221) is provided with the mounting hole (222), and a lower end surface of the body (221) is provided with the connecting shaft (223).

6. The vibration driving structure (100) according to claim 5, wherein the mounting hole (222) is opened along an end surface perpendicular to the body (221), the connecting shaft (223) is vertically protruded along the end surface of the body (221), the connecting shaft (223) is located on a side close to a center of a circle with respect to the mounting hole (222), and axes of the mounting hole (222) and the connecting shaft (223) are simultaneously located in a central symmetrical plane in a vertical direction of the circle.

7. The vibration driving structure (100) according to claim 4, wherein the linkage structure (3) comprises a connecting rod, one end of the connecting rod is provided with a connecting hole (31), a first bearing (5) is arranged in the connecting hole (31), and the connecting shaft (223) is correspondingly inserted into a bearing hole of the first bearing (5).

8. The vibration driving structure (100) according to claim 7, wherein the other end of the connecting rod is opened with a transmission hole (32), one end of the piston rod (4) is provided with an opening (41) corresponding to the transmission hole (32), and the transmission hole (32) and the opening (41) are hinged through a pin (6).

9. A muscle massaging apparatus, comprising a housing (300) and a power supply assembly (400) and a vibration-powered structure (100) disposed in the housing and electrically connected thereto, wherein the vibration-powered structure (100) is the vibration-powered structure (100) of any one of claims 1 to 8.