Swinger with improved structure

Abstract

The utility model provides a swinger with an improved structure, which comprises a shell, a mounting shaft transversely erected in the shell, a swinging component suspended on the mounting shaft, two magnets vertically mounted at the lower end part of the swinging component and arranged oppositely, an electromagnetic coil arranged between the two magnets, and a driving circuit board, the swing assembly comprises a swing part which is integrally formed through plastic and basically of a left-right symmetrical structure, the swing part comprises a connecting piece which is installed on the installation shaft and extends downwards and two installation grooves which are located in the bottom end of the connecting piece and used for fixing magnets, openings of the installation grooves in the two sides face the outer side, and elastic buckles for clamping and fixing the magnets are further formed in the installation grooves. Due to the fact that the magnet does not need to be installed from the inner side, the swing part can be designed to be of an integrated structure, the gap between the swing part and the electromagnetic coil does not change, and the magnet does not loosen, the stability of the product structure can be ensured, assembling is simplified, particularly, the magnet assembling quality is not depended any more, and the production efficiency can be obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rockers, in particular to a rocker with an improved structure. Background Art

[0002] Small swings are widely used in store advertising displays or swing toys. They are a very common product. The basic principle of an existing swing is to drive the suspended swing arm to swing back and forth through an electromagnetic coil and a magnet. This swing is electrically driven and does not require external force, so the swing is continuous and stable. In order to improve the stability of the swing, reduce energy consumption and reduce mechanical wear during the swing process, this type of swing is designed to have a double magnet structure, that is, it includes an electromagnetic coil fixed in the middle position, and two magnets arranged on the swing arm and parallel to the two ends of the electromagnetic coil; the magnetic field force of this swing is more uniform, which can avoid the unstable or skewed swing caused by asymmetry. At the same time, the double-sided magnets can increase the magnetic field driving force, thereby improving the response speed and efficiency of the swing. For details, please refer to the technical solution disclosed in the Chinese utility model patent document with authorization announcement number CN220491582U. In the existing products of this type, in order to ensure the magnetic force transmission effect between the magnet and the electromagnetic coil, the openings of the installation slots on both sides for installing the magnets are arranged relative to each other. Since the gap between the two magnets is small and the magnets need to be fixed with glue during installation, the swing arms (i.e., swing plates) are arranged into two parts that are connected by left and right snaps. During production and assembly, the magnets or the installation slots are first glued and fixed to each other, and then the left and right parts of the swing arms are plugged or snapped together to form an integral structure. In the production and assembly process of the swinger with this structure, when the magnet is fixed on the swing arm by glue, on the one hand, the magnet will not be pressed in place, and there will be unevenness or gaps. On the other hand, the gap between the magnets on both sides will become smaller due to the attraction between the magnets on both sides, and then it is easy to cause friction between the magnet and the electromagnetic coil during use, especially when it is slightly tilted; during transportation, the product cannot avoid collision or falling, and the two parts of the swing arm are easy to loosen and change the gap, which will also cause friction between the swing arm and the shell, and between the magnet and the electromagnetic coil; and during use, the magnet fixed by glue will gradually loosen after the swing arm swings for a long time, and the left and right parts of the swing arm will also gradually loosen and deform, which will also cause friction between the swing arm and the shell, and between the magnet and the electromagnetic coil, and even jamming; when the swinger has unstable conditions such as friction, it will also increase the energy consumption and mechanical loss of the swinger, and slow down the response speed. Therefore, it is necessary to improve this type of product. Utility Model Content

[0003] The utility model aims to improve the existing wobbler structure with double magnets so as to enhance the stability of the wobbler structure.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A wobbler with an improved structure comprises a shell with an inner cavity and an open top surface, a mounting shaft horizontally mounted between two opposite side walls in the shell, a wobbling assembly suspended on the mounting shaft, two oppositely arranged magnets vertically mounted on the lower end of the wobbling assembly, an electromagnetic coil fixedly arranged between the two magnets, and a driving circuit board that drives the wobbling assembly to swing back and forth around the axis of the mounting shaft through the electromagnetic coil, the wobbling assembly comprises a wobbling portion integrally formed of plastic and having a basically left-right symmetrical structure, the wobbling portion comprises a connecting piece mounted on the mounting shaft and extending downward, and two parallel mounting grooves for fixing the magnets at the bottom end of the connecting piece, the mounting grooves on both sides openings facing outward, and elastic buckles for fixing the magnets are also formed on the mounting grooves.

[0006] In a preferred embodiment, hollow holes are formed on the inner side walls opposite to each other of the installation grooves on both sides.

[0007] A preferred embodiment, the mounting groove is adapted to the contour of the magnet, including the inner wall near the side of the electromagnetic coil, and the circumferential wall surrounding the magnet, the elastic buckle is formed on the circumferential wall by two dividing grooves along its depth direction, and the top of the elastic buckle has a snap portion extending radially inward, and the bottom side of the circumferential wall has a avoidance groove vertically corresponding to the inner wall of the elastic buckle.

[0008] In a preferred solution, the mounting shaft and the swinging part are an integrally formed plastic structure, and both ends are rotatably mounted on the housing.

[0009] In a preferred embodiment, the swing assembly further comprises a bracket portion which is integrally formed with the swing portion and extends upwardly out of the shell opening.

[0010] In a preferred embodiment, the driving circuit board is vertically fixed in the shell, the electromagnetic coil is plugged and fixed to the upper edge of one side of the driving circuit board, and a group of electrode sheets for electrical contact with the two ends of the dry battery are also plugged and fixed on the driving circuit board.

[0011] The beneficial effect of the above scheme is that the openings of the installation grooves on the left and right sides are set to face outward, so that the magnets can be installed into the installation grooves from the outside and fixed by elastic buckles. Compared with the prior art, since the magnets do not need to be installed from the inside, the swing part can be designed as an integral structure, the gap between the swing part and the electromagnetic coil will not change, and the magnets will not loosen, so the structural stability of the product during production, transportation, and long-term use can be ensured, and friction and other defects can be avoided, thereby reducing energy consumption and mechanical loss. In addition, it also simplifies assembly, especially no longer relying on the quality of magnet assembly, which can significantly improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 It is a schematic diagram of the overall structure of the rocker in the embodiment;

[0014] Figure 2 This is a schematic diagram of the internal installation structure of the rocker in the embodiment;

[0015] Figure 3 It is a structural schematic diagram of the swing assembly in the embodiment;

[0016] Figure 4 Schematic diagram of the structure of the installation slot in the embodiment. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. In the description of the present application, it should be understood that the orientation or positional relationship indicated in the terms is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. In addition, unless otherwise clearly specified and limited, terms such as "install", "connect", "connect", and "fix" should be understood in a broad sense, and those of ordinary skill in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0019] refer to Figures 1 to 4As shown, a swinging device of an improved structure of the present embodiment comprises a housing 1 having an inner cavity and an opening on the top surface, a mounting shaft 2 horizontally mounted between two opposite side walls in the housing 1, a swinging assembly 3 suspended and mounted on the mounting shaft 2, two magnets 4 vertically mounted on the lower end of the swinging assembly 3 and arranged opposite to each other, an electromagnetic coil 5 fixedly arranged between the two magnets 4, and a driving circuit board 6 for driving the swinging assembly 3 to swing back and forth around the axis of the mounting shaft 2 through the electromagnetic coil 5. The housing 1 is formed by mutually engaging and matching a left half shell 11 and a right half shell 12 arranged opposite to each other, the swinging assembly 3 comprises a swinging portion 31 integrally formed of plastic and having a substantially bilaterally symmetrical structure, the swinging portion 31 comprises a connecting member 311 mounted on the mounting shaft 2 and extending downward, and two parallel mounting grooves 312 for fixing the magnet 4 at the bottom end of the connecting member 311, the openings of the mounting grooves 312 on both sides are both facing outward, and the mounting grooves 312 are also formed with elastic buckles 3123 for fixing the magnet 4.

[0020] During operation, the driving circuit on the driving circuit board 6 causes the electromagnetic coil 5 to generate a changing magnetic force, and then drives the swing component 3 to swing back and forth around the axis of the mounting shaft 2 through the magnet 4. The mounting shaft 2 can be rotatably set, in which case the swing component 3 and the mounting shaft 2 can be fixed or movably set. The mounting shaft 2 can also be fixedly set, in which case the swing component 3 needs to be movably inserted into the mounting shaft 2.

[0021] The openings of the installation grooves 312 on the left and right sides are set to face outward, and the magnet 4 can be installed into the installation groove 312 from the outside and fixed by the elastic buckle 3123. Compared with the prior art, since the magnet 4 does not need to be installed from the inside, the swing part 31 can be designed as an integral structure, the gap between the swing part 31 and the electromagnetic coil 5 will not change, and the magnet 4 will not get loose, so the stability of the product structure during production, transportation, and long-term use can be ensured, and friction and other defects can be avoided, thereby reducing energy consumption and mechanical loss. In addition, the assembly is simplified, especially no longer relying on the assembly quality of the magnet 4, which can significantly improve production efficiency.

[0022] In a preferred embodiment, the inner side walls 3121 opposite to the mounting grooves 312 on both sides of the embodiment are provided with hollow holes 3122. The hollow holes 3122 can reduce the magnetic resistance between the magnet 4 and the electromagnetic coil 5, and can further save the swing energy consumption. In other embodiments, the magnetic resistance can also be reduced by reducing the wall thickness of the inner side wall 3121.

[0023] A preferred embodiment, the mounting groove 312 of this embodiment is adapted to the contour of the magnet 4, including the inner wall 3121 near the side of the electromagnetic coil 5, and the circumferential wall 3124 surrounding the magnet 4, the elastic buckle 3123 is formed on the circumferential wall 3124 by two dividing grooves 3125 along its depth direction, and the top end of the elastic buckle 3123 has a snap portion 3126 extending radially inward, and the bottom side of the circumferential wall 3124 has an avoidance groove 3127 vertically corresponding to the inner wall of the elastic buckle 3123. The mounting groove 312 is adapted to the contour of the magnet 4 to ensure that the magnet 4 will not shift or loosen during the swinging process; and the avoidance groove 3127 can facilitate the integral molding of the swinging part 31. Specifically, the mold for molding the swinging part 31 is arranged into three parts, left, right and bottom, wherein the bottom part is inserted from the avoidance groove 3127 to assist in molding the gap between the two mounting grooves 312 and the buckle part 3126 of the elastic buckle 3123, thereby simplifying the molding mold structure.

[0024] In a preferred embodiment, the mounting shaft 2 and the swinging part 31 of this embodiment are integrally formed plastic structures, and both ends are rotatably mounted on the housing 1. Further, the swinging assembly 3 also includes a bracket portion 32 integrally formed with the swinging part 31 and extending upward from the opening of the housing 1. The swinging assembly 3 is integrally formed as a whole, which further simplifies the structure and assembly and improves the stability of the structure.

[0025] A preferred solution is that the driving circuit board 6 shown in this embodiment is vertically fixedly installed in the housing 1, the electromagnetic coil 5 is plugged and fixed to the upper edge of one side of the driving circuit board 6, and a group of electrode sheets 7 for contacting and electrically connecting with the two ends of the dry battery are also plugged and fixed on the driving circuit board 6. The driving circuit board 6 is fixed vertically, and the electromagnetic coil 5 and the electrode sheet 7 are directly plugged and fixed on the driving circuit board 6, which not only simplifies the structure and installation, but also has stronger stability.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rocker with an improved structure, comprising a housing with an inner cavity and an open top surface, a mounting shaft horizontally mounted between two opposite side walls in the housing, a rocking assembly suspended on the mounting shaft, two oppositely mounted magnets vertically mounted at the lower end of the rocking assembly, an electromagnetic coil fixedly disposed between the two magnets, and a driving circuit board for driving the rocking assembly to reciprocate around the axis of the mounting shaft through the electromagnetic coil, characterized in that: The swing assembly includes a swing part that is integrally formed of plastic and has a basically left-right symmetrical structure. The swing part includes a connecting piece installed on the mounting shaft and extending downward, and two parallel mounting grooves for fixing the magnet on the left and right sides of the bottom end of the connecting piece. The openings of the mounting grooves on both sides are facing outward, and the mounting grooves are also formed with elastic buckles for fixing the magnet.

2. The improved structure of the rocker according to claim 1 is characterized in that: The inner side walls opposite to the installation grooves on both sides are provided with hollow holes.

3. The improved structure of the rocker according to claim 1 is characterized in that: The mounting groove is adapted to the contour of the magnet, and includes the inner wall near the side of the electromagnetic coil, and the circumferential wall surrounding the magnet. The elastic buckle is formed on the circumferential wall by two dividing grooves along its depth direction, and the top of the elastic buckle has a snap portion extending radially inward, and the bottom side of the circumferential wall has a avoidance groove vertically corresponding to the inner wall of the elastic buckle.

4. The improved structure of the rocker according to claim 1 is characterized in that: The installation shaft and the swing part are an integrally formed plastic structure, and both ends are rotatably installed on the housing.

5. The improved structure of the rocker according to claim 4 is characterized in that: The swing assembly also includes a bracket portion which is integrally formed with the swing portion and extends upwardly out of the housing opening.

6. The improved structure of the rocker according to claim 1 is characterized in that: The driving circuit board is vertically fixed in the shell, the electromagnetic coil is plugged and fixed to the upper edge of one side of the driving circuit board, and a group of electrode sheets for contacting and electrically connecting with the two ends of the dry battery are also plugged and fixed on the driving circuit board.

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