Flexible swinging device

Abstract

The invention discloses a flexible swinging device. Comprising a motor fixing frame, a motor, swing rods and a connecting piece, the motor is fixedly installed in the motor fixing frame, a rotating shaft of the motor is arranged outside the motor fixing frame, an eccentric mechanism is arranged on the rotating shaft of the motor, the swing rods are hinged to ports of the motor fixing frame respectively, the connecting piece is a flexible body, and the middle of the connecting piece is connected to an output shaft of the eccentric mechanism. Connecting rods are arranged at the extending positions of the side edges of the connecting piece and connected to the swing rods respectively. The flexible connecting piece is directly used for transmission, gears and connecting rods are directly omitted, the whole transmission mechanism is quite simple, cost is effectively reduced, assembly is quite simple, accurate meshing of the gears and accurate lap joint of the connecting rods do not need to be considered, transmission friction of the gears and the connecting rods does not exist, and the transmission efficiency is improved. The use of lubricating oil is avoided, and the load of the motor is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of transmission mechanisms, in particular to a flexible swinging device. Background Art

[0002] As we all know, the swing device is a mechanism used to produce a swinging motion. It is mainly used in various electronic products, such as muscle massagers and head massagers. It is used to generate a back-and-forth swinging force to massage the acupuncture points of the human body.

[0003] At present, most of the existing swing devices rely on gears or connecting rods or a combination of gears and connecting rods for transmission. The number of gears, connecting rods and other parts required from the motor to the massage head will also be very large, which will cause the structural design to be complicated, the installation process will become more complicated, and the cost will become higher. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a flexible swinging device.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] A flexible swing device includes a motor mounting frame, a motor, a rocker arm and a connecting piece, wherein the motor is fixedly installed in the motor mounting frame, the rotating shaft of the motor is placed outside the motor mounting frame, an eccentric mechanism is arranged on the rotating shaft of the motor, the rocker arm is respectively hinged on the ports of the motor mounting frame, the connecting piece is a flexible body, the middle part of the connecting piece is connected to the output shaft of the eccentric mechanism, the side extensions of the connecting piece are connected to the rocker arm, and the connecting rods are respectively connected to the rocker arm.

[0007] Preferably, the connecting piece is made of silicone.

[0008] Preferably, the eccentric mechanism includes a rotating block fixedly mounted on the rotating shaft of the motor, a vertical rod is provided at the eccentric position of the rotating block, a sleeve block is fixedly sleeved on the vertical rod, a first annular groove is provided on the periphery of the sleeve block, a first sleeve opening is provided in the middle of the connecting piece, and the connecting piece is sleeved in the first annular groove through its own deformation at the first sleeve opening.

[0009] Preferably, a second annular groove is provided on the rod body of the swing rod, a second sleeve opening is provided at the end of the connecting rod, and the connecting rod is sleeved in the second annular groove through its own deformation at the second sleeve opening.

[0010] Preferably, the motor is a double-headed motor, one of the rotating shafts of the motor is connected to the eccentric mechanism, and the other rotating shaft of the motor is provided with an eccentric wheel.

[0011] Due to the adoption of the above scheme, the present invention directly uses a flexible connecting part as a transmission, directly eliminating the use of gears and connecting rods, making the overall transmission mechanism very simple, effectively reducing costs, and making assembly very simple. There is no need to consider the precise meshing of gears and the precise overlap between connecting rods, and there is no transmission friction between gears and connecting rods. The use of lubricating oil is eliminated, thereby reducing the load on the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0013] Figure 2 is an exploded view of an embodiment of the present invention.

[0014] Figure 3 It is a schematic structural diagram of the connecting member of the embodiment of the present invention when swinging. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] like Figures 1 to 3 As shown, a flexible swing device provided in this embodiment includes a motor fixing frame 1, a motor 2, a rocker arm 3 and a connecting member 4, wherein the motor 2 is fixedly installed in the motor fixing frame 1, the rotating shaft of the motor 1 is placed outside the motor fixing frame 1, an eccentric mechanism 5 is arranged on the rotating shaft of the motor 2, the rocker arm 3 is respectively hinged on the ports of the motor fixing frame 1, the connecting member 4 is a flexible body, the middle part of the connecting member 4 is connected to the output shaft of the eccentric mechanism 5, the side extensions of the connecting member 4 are connected to connecting rods 41, and the connecting rods 41 are respectively connected to the rocker arm 3.

[0019] This embodiment directly uses the flexible connecting member 4 as the transmission, directly eliminating the use of gears and connecting rods, making the overall transmission mechanism very simple, effectively reducing costs, and making assembly very simple. There is no need to consider the precise meshing of gears and the precise overlap between connecting rods, and there is no transmission friction between gears and connecting rods. The use of lubricating oil is eliminated, thereby reducing the load on the motor 2.

[0020] During specific transmission, the number of rocker rods 3 is preferably four, and the motor 2 generates a rotational force to make the eccentric mechanism 5 output a circular path along a certain diameter for rotation. The connecting member 3 connected to the eccentric mechanism 5 is a flexible body, and the side ends of the connecting member 3 are respectively connected to the rocker rod 3. Therefore, when the eccentric mechanism 5 drives the connecting member 4 to move, the connecting member 4 and the connecting rod 41 are constantly deformed. Only when the moving direction corresponds to the active direction of the rocker rod 3, the rocker rod 3 will be pushed to move. Every time it rotates one circle, each rocker rod 3 will swing once, thus completing the swinging work.

[0021] Furthermore, as for the material of the connecting member 4, silicone material is preferably used, and of course other flexible materials that can meet the above-mentioned transmission function can also be used.

[0022] Further, with regard to the specific structural design of the eccentric mechanism 5, the eccentric mechanism 5 of this embodiment includes a rotating block 51 fixedly mounted on the rotating shaft of the motor 2, a vertical rod 52 is provided at the eccentric position of the rotating block 51, a sleeve block 53 is fixedly sleeved on the vertical rod 52, a first annular groove 54 is provided on the periphery of the sleeve block 53, a first sleeve opening 42 is provided in the middle of the connecting member 4, and the connecting member 4 is sleeved in the first annular groove 54 through its own deformation at the first sleeve opening 42. In this way, after the rotating shaft of the motor 2 rotates, the rotating block 51 is first driven to rotate, and the vertical rod 52 located on the rotating block 51, because of the eccentric design, the running track of the vertical rod 52 is a circular track of a specific diameter, and the connecting member 4 is installed on the vertical rod 52, and it will also rotate in a circular track, thereby meeting the above-mentioned transmission requirements; at the same time, because the first sleeve opening 42 and the first annular groove 54 are used for assembly, it is convenient to install, and the elastic deformation force of the connecting member 4 itself is relied on to meet the stable installation requirements.

[0023] Furthermore, regarding the connection between the rocker arm 3 and the connecting rod 41, the present embodiment is also assembled in an easy-to-install manner, that is, a second annular groove 31 is provided on the rod body of the rocker arm 3, and a second sleeve 43 is provided at the end of the connecting rod 41. The connecting rod 41 is sleeved in the second annular groove 31 through its own deformation at the second sleeve 43.

[0024] In addition, when it is necessary to explain, when this embodiment is used in a massage instrument, the motor fixing frame 1 is installed inside the instrument, and the top end of the swing rod 3 is used to connect the massage head.

[0025] At the same time, when used as a massager, in order to improve the massage effect, the motor 2 of this embodiment is a double-headed motor, one of the rotating shafts of the motor 2 is connected to the eccentric mechanism 5, and an eccentric wheel 21 is provided on the other rotating shaft of the motor 2. In this way, when the swing rod 3 is swung for massage, the eccentric vibration is also generated by the same motor 2 to provide a vibration massage effect.

[0026] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A flexible swinging device, characterized in that: It includes a motor fixing frame, a motor, a rocker arm and a connecting piece, wherein the motor is fixedly installed in the motor fixing frame, the rotating shaft of the motor is placed outside the motor fixing frame, an eccentric mechanism is arranged on the rotating shaft of the motor, the rocker arm is respectively hinged on the port of the motor fixing frame, the connecting piece is a flexible body, the middle part of the connecting piece is connected to the output shaft of the eccentric mechanism, the side of the connecting piece is extended with a connecting rod, and the connecting rod is respectively connected to the rocker arm.

2. A flexible swinging device as claimed in claim 1, characterized in that: The connecting piece is made of silicone.

3. A flexible swinging device as claimed in claim 1, characterized in that: The eccentric mechanism includes a rotating block fixedly mounted on the rotating shaft of the motor, a vertical rod is arranged at the eccentric position of the rotating block, a sleeve block is fixedly sleeved on the vertical rod, a first annular groove is arranged around the sleeve block, a first sleeve opening is arranged in the middle of the connecting piece, and the connecting piece is sleeved in the first annular groove through its own deformation at the first sleeve opening.

4. A flexible swinging device as claimed in claim 3, characterized in that: The rod body of the swing rod is provided with a second annular groove, the end of the connecting rod is provided with a second sleeve opening, and the connecting rod is sleeved in the second annular groove through its own deformation at the second sleeve opening.

5. A flexible swinging device as claimed in claim 1, characterized in that: The motor is a double-headed motor, one of the rotating shafts of the motor is connected to the eccentric mechanism, and the other rotating shaft of the motor is provided with an eccentric wheel.

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