Flexible swinging device

Abstract

The utility model 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 simple, cost is effectively reduced, assembly is 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 utility model 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 generate 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. Utility Model Content

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

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flexible swinging device includes a motor fixing frame, a motor, a rocker arm and a connecting member, 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 provided on the rotating shaft of the motor, the rocker arms are respectively hinged on the ports of the motor fixing frame, the connecting member is a flexible body, the middle part of the connecting member is connected to the output shaft of the eccentric mechanism, the side extensions of the connecting member are connected to the rocker arms, and the connecting rods are respectively connected to the rocker arms.

[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 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.

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

[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-mentioned solution, the utility model directly uses flexible connecting parts as 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 engagement of gears and the precise overlap between connecting rods, and there is no transmission friction between gears and connecting rods, eliminating the use of lubricating oil and reducing the load on the motor. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0013] Figure 2 It is an exploded view of an embodiment of the present utility model.

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

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to 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 intended to limit the present invention.

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

[0017] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary, and they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0018] like Figures 1 to 3 As shown, this embodiment provides a flexible swinging device, including 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 provided on the rotating shaft of the motor 2, the rocker arm 3 is respectively hinged to the port 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 the connecting rod 41, and the connecting rod 41 is respectively connected to the rocker arm 3.

[0019] This embodiment directly uses the flexible connecting member 4 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 engagement of gears and the precise overlap between connecting rods, and there is no transmission friction between gears and connecting rods, eliminating the use of lubricating oil, and reducing the load on motor 2.

[0020] During specific transmission, the number of rocker rods 3 is preferably four, and the motor 2 generates a rotational force, so that the eccentric mechanism 5 outputs a circular path along a certain diameter for rotation, and 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, so 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, will the rocker rod 3 be pushed to move. Each rocker rod 3 will swing once for every rotation, thus completing the swinging work.

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

[0022] Furthermore, regarding the specific structural design of the eccentric mechanism 5, the eccentric mechanism 5 of this embodiment comprises a rotating block 51 fixedly mounted on the rotating shaft of the motor 2. An upright 52 is disposed eccentrically on the rotating block 51. A sleeve 53 is fixedly mounted on the upright 52. A first annular groove 54 is formed around the sleeve 53. A first opening 42 is disposed in the middle of the connecting member 4. The connecting member 4 is fitted into the first annular groove 54 by deforming at the first opening 42. Thus, when the rotating shaft of the motor 2 rotates, it first drives the rotating block 51 to rotate. Because of its eccentric design, the upright 52 on the rotating block 51 follows a circular path of a specific diameter. When the connecting member 4 is mounted on the upright 52, it also rotates along a circular path, thus meeting the aforementioned transmission requirements. Furthermore, the use of the first opening 42 and the first annular groove 54 for assembly facilitates installation while also ensuring stable installation due to the elastic deformation force of the connecting member 4.

[0023] Furthermore, regarding the connection between the rocker arm 3 and the connecting rod 41, this embodiment also adopts an easy-to-install assembly method, 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, it should be noted that 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 rocker arm 3 is used to connect to the massage head.

[0025] At the same time, when used as a massager, in order to enhance 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 the other rotating shaft of the motor 2 is provided with an eccentric wheel 21. In this way, when the swing arm 3 is swinging for massage, the same motor 2 also generates eccentric vibration, providing 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: The invention comprises a motor mounting frame, a motor, a rocker arm and a connecting member, wherein the motor is fixedly mounted in the motor mounting frame, the rotating shaft of the motor is placed outside the motor mounting frame, an eccentric mechanism is provided on the rotating shaft of the motor, the rocker arms are respectively hinged to the ports of the motor mounting frame, the connecting member is a flexible body, the middle portion of the connecting member is connected to the output shaft of the eccentric mechanism, the side of the connecting member is extended with connecting rods, and the connecting rods are respectively connected to the rocker arms; 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 around 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.

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

3. A flexible swinging device according to claim 1, 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, and the connecting rod is sleeved in the second annular groove through its own deformation at the second sleeve.

4. A flexible swinging device according to 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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