A magnetic block

Abstract

The application discloses a magnetic block, comprising a main shell, a cover shell and a plurality of magnets. The main shell has four side plates, and the inner wall of each side plate is provided with a reinforcing shell. The reinforcing shell comprises a main wall and side walls located on both sides of the main wall. The magnet cavity is enclosed between two adjacent side plates and the reinforcing shells on the two adjacent side plates. The cover shell comprises a main shell and a plurality of welding ribs arranged on the surface of the main shell. In the connected state of the cover shell and the main shell, each welding rib is in contact with the strip-shaped thickness end face of the corresponding reinforcing shell and is fixed by ultrasonic welding. Each magnet is freely accommodated in the corresponding magnet cavity. The magnetic block of the application can improve the structural strength of the main shell by arranging the reinforcing shell, and can also enclose the magnet cavity to place the magnet. The end face of the welding rib and the reinforcing shell are fixed by ultrasonic welding, and the connection is stable and not easy to be separated. The phenomenon of shell separation and magnet falling can be avoided after long-term use. The product has better durability, longer service life and effectively improved product quality.

Description

Technical Field

[0001] This utility model relates to the field of toy technology, specifically to a magnetic block. Background Technology

[0002] Existing magnetic blocks typically consist of a main shell and a cover. The main shell is usually a frame structure with a cavity for holding the magnet. The cover is inserted into the open end of the main shell to close the cavity and secure the magnet. During assembly, the magnet is first placed directly into the cavity of the main shell, and then the cover's insert pin is inserted into the slot at the open end of the main shell for fixation. However, this insert-connection structure has poor stability. The lack of a robust connection between the cover and the main shell makes them susceptible to loosening or even detachment after prolonged exposure to impacts, vibrations, or repeated use. This can cause the magnet to fall out, directly affecting the normal function of the magnetic block and potentially posing a safety hazard due to lost or scattered magnets. Furthermore, the product lacks durability, failing to meet users' needs for long-term stable use and resulting in a short lifespan.

[0003] In view of the above, this utility model is hereby proposed. Utility Model Content

[0004] This utility model provides a magnetic block.

[0005] The primary objective of this application is to provide a magnetic doll, the technical solution of which is as follows: A magnetic block, comprising: The main shell has four side plates arranged circumferentially and adjacent side plates are vertically connected. Each side plate encloses a cavity and two openings connecting the cavity. The two openings are located on opposite sides of the main shell. Each side plate has a reinforcing shell on its inner wall. The reinforcing shell includes a main wall and side walls located on both sides of the main wall. The main wall and the corresponding side plate are spaced apart. The two side walls are respectively connected to the main wall and the side plate. A magnet cavity is enclosed between two adjacent side plates and the reinforcing shells on the two adjacent side plates. A cavity is formed between the reinforcing shells and the side plates. The reinforcing shell has a strip-shaped thickness end face facing the opening. The cover shell includes a main body and a plurality of welded ribs disposed on the surface of the main body. When the cover shell and the main shell are connected, the cover shell closes the opening. Each welded rib contacts the strip-shaped thickness end face of the corresponding reinforcing shell and is fixed by welding with ultrasonic equipment. Multiple magnets, each of which is freely and movably housed in its respective magnet cavity.

[0006] Optionally, the two sidewalls of the reinforcing shell are arc-shaped shells that bulge in opposite directions, and the outer convex surface of the arc-shaped shell forms part of the inner wall of the magnet cavity; There is a gap between the reinforcing shells on two adjacent side plates, and the gap is smaller than the minimum external dimensions of the magnet.

[0007] Optionally, each of the welded ribs includes a straight rib and curved ribs located on both sides of the straight rib; When the cover and the main shell are connected, the straight ribs are in contact with the thickness end faces of the corresponding main walls, and the curved ribs are in contact with the thickness end faces of the corresponding side walls.

[0008] Optionally, the main body has a base plate and side retaining ribs located at the edge of the base plate; The welded rib is connected to the base plate and extends out of the side retaining rib.

[0009] Optionally, a welding positioning shaft is provided on the cover shell; A welded positioning cylinder is provided on the inner wall of the main shell; With the cover and the main shell connected, the welding positioning shaft is inserted into the welding positioning cylinder.

[0010] Optionally, the welding positioning cylinder is located in the cavity and is connected to the side plate and the main wall respectively; The welding positioning shaft is located within the area enclosed by the welding ribs on the cover shell, and is connected to the straight ribs of the welding ribs and the side retaining ribs respectively.

[0011] Optionally, the reinforcing shell extends to the two openings at both ends.

[0012] Optionally, the main shell of the magnetic block includes reinforcing ribs; The reinforcing ribs are located inside the cavity, and the reinforcing ribs extend to the inner corners of the edges formed between adjacent side plates; Two magnet cavities are formed on the inner corner of each edge of the main shell, and the two magnet cavities are respectively located on both sides of the reinforcing rib along the thickness direction.

[0013] Optionally, a convex shaft is provided on the reinforcing rib, the convex shaft is located inside the magnet cavity and extends protruding towards one side of the cover shell.

[0014] Optionally, the reinforcing rib includes four support plates, each of which extends to the four inner corners of the main shell. Each of the aforementioned support pieces is connected to the sidewall of the reinforcing shell on two adjacent side plates, and its end is connected to the inner wall of the main shell.

[0015] By adopting the above technical solution, this application has the following beneficial effects: The magnetic block of this application has a reinforcing shell, which not only improves the structural strength of the main shell, but also forms a magnetic cavity to hold the magnet. The welding ribs are fixed to the end face of the reinforcing shell by ultrasonic welding, which makes the connection stable and not easy to separate. This can avoid the phenomenon of shell separation and magnet falling off after long-term use, resulting in better product durability, longer service life, and effectively improving product quality. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the external structure of the magnetic block provided in the embodiments of this application; Figure 2 An exploded view of the magnetic block provided in an embodiment of this application; Figure 3 This is a schematic diagram of the main shell structure of the magnetic block provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the cover shell of the magnetic block provided in an embodiment of this application.

[0018] In the figure: Main shell 1, side plate 11, reinforcing shell 12, main wall 121, side wall 122, welded positioning cylinder 13, reinforcing rib 14, support plate 141, convex shaft 142, cover shell 2, main body 21, bottom plate 211, side baffle rib 212, welded rib 22, straight rib 221, bent rib 222, connecting rib 23, welded positioning shaft 24. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] See Figures 1 to 4 As shown, this application embodiment provides a magnetic block, including: a main shell 1, a cover shell 2, and a plurality of magnets (not shown). The main shell 1 has four side plates 11, which are arranged sequentially around the circumference. Adjacent side plates 11 are vertically connected, and each side plate 11 encloses a cavity and two openings connecting the cavity. The two openings are respectively located on opposite sides of the main shell 1. Each side plate 11 has a reinforcing shell 12 on its inner wall. The reinforcing shell 12 includes a main wall 121 and side walls 122 located on both sides of the main wall 121. The main wall 121 and the corresponding side plate 11 are spaced apart. The two side walls 122 are respectively connected to the main wall 121 and the side plate 11. A magnet cavity is enclosed between two adjacent side plates 11 and the reinforcing shells 12 on the two adjacent side plates 11. The reinforcing shell 12 and the side plate 11 enclose a cavity. The reinforcing shell 12 has a strip-shaped thickness end face facing the opening. The cover shell 2 includes a main body 21 and multiple welding ribs 22 disposed on the surface of the main body 21. When the cover shell 2 is connected to the main shell 1, the cover shell 2 closes the opening. Each welding rib 22 is in contact with the strip-shaped thickness end face of the corresponding reinforcing shell 12 and is fixed by ultrasonic welding. The ultrasonic welding sealing structure can effectively block water vapor and dust, avoiding problems such as oxidation, demagnetization, and magnetic weakening of the magnet due to long-term environmental corrosion, thus improving the overall service life and stability of the magnetic block. The magnetic block of this application includes two cover shells 2. When the two cover shells 2 are connected to the main shell 1, the two cover shells 2 respectively close the two openings. Each magnet is freely and movably accommodated in the corresponding magnet cavity. By setting the reinforcing shell 12, the magnetic block of this application not only improves the structural strength of the main shell 1, but also encloses and forms a magnet cavity to hold the magnet. The welding ribs 22 are fixed to the end face of the reinforcing shell 12 by ultrasonic welding, making the connection stable and not easy to separate. This can avoid the phenomenon of shell separation and magnet falling off after long-term use, resulting in better product durability, longer service life, and effectively improving product quality.

[0023] The two sidewalls 122 of the reinforcing shell 12 are arc-shaped shells that bulge in opposite directions. The outer convex surface of the arc-shaped shell forms part of the inner wall of the magnet cavity. The inner wall of the arc-shaped shell is smooth and unobstructed, which reduces frictional resistance and facilitates free rotation within the magnet cavity, ensuring the magnetic attraction effect of the magnetic block. There is a gap between the reinforcing shells 12 on two adjacent side plates 11. The gap is smaller than the minimum external dimensions of the magnet, which prevents the magnet from falling out without closing the magnet cavity, leaving sufficient space for the magnet to rotate flexibly. For example, when the magnet has a cube structure, its external dimensions are the side length of the cube. In this application, each magnet is limited inside the magnet cavity and can only move slightly, so that the magnet does not shift or fall off, keeping the magnetic attraction range of the product constant and the magnetic attraction force does not decrease with the use time.

[0024] In one possible implementation, each of the welding ribs 22 includes a straight rib 221 and curved ribs 222 located on both sides of the straight rib 221. When the cover shell 2 and the main shell 1 are connected, the straight rib 221 fits against the thickness end face of the corresponding main wall 121, and the curved rib 222 fits against the thickness end face of the corresponding side wall 122. This results in a high degree of fit and matching, a larger contact area, precise welding positioning, sufficient contact, and higher overall connection stability after welding. Adjacent welding ribs 22 are connected by connecting ribs 23 to form an integral structure, effectively improving the structural strength of the cover shell 2.

[0025] In one possible implementation, the main body 21 has a base plate 211 and a side baffle 212 located at the edge of the base plate 211. The welding rib 22 is connected to the base plate 211 and extends out of the side baffle 212. It can preferentially contact the thickness end face of the main shell 1, making the fit and alignment smoother. At the same time, it reserves a margin for welding deformation, adapts to the hot melt deformation requirements of ultrasonic welding, and ensures the welding bonding effect.

[0026] The cover shell 2 is provided with a welding positioning shaft 24, and the inner wall of the main shell 1 is provided with a welding positioning cylinder 13. When the cover shell 2 and the main shell 1 are connected, the welding positioning shaft 24 is inserted into the welding positioning cylinder 13, which can achieve precise assembly positioning, effectively limit the relative position of the cover shell 2 and the main shell 1, avoid assembly deviation, greatly improve the forming accuracy of ultrasonic welding, and ensure that the overall assembly structure is neat and reliable.

[0027] The welding positioning cylinder 13 is located in the cavity and is connected to the side plate 11 and the main wall 121 respectively. The welding positioning shaft 24 is located in the area enclosed by the welding ribs 22 on the cover shell 2 and is connected to the straight ribs 221 of the welding ribs 22 and the side baffles 212 respectively. The welding positioning cylinder 13 can be integrally formed with the main shell 1, which can make full use of the internal cavity space of the main shell 1 and strengthen the structural strength between the main wall 121 and the side plate 11, making the main shell 1 less prone to deformation and ensuring accurate alignment during assembly. The positioning shaft can also be integrally formed with the cover shell 2, which can make reasonable use of the internal space and strengthen the connection strength of the cover shell 2, making the cover shell 2 less prone to deformation. During assembly, accurate alignment of the cover shell 2 and the main shell 1 can be achieved.

[0028] The reinforcing shell 12 extends to the two openings at both ends, which facilitates welding operations at the two openings and makes the processing operation more convenient.

[0029] In one possible implementation, the main shell 1 of the magnetic block includes reinforcing ribs 14 located within the cavity. The reinforcing ribs 14 extend to the inner corners of the edges formed between adjacent side plates 11. Two magnet cavities are formed at each inner corner of the main shell 1, located on opposite sides of the reinforcing rib 14 along its thickness. The reinforcing ribs 14 both enhance the structural strength of the corners of the main shell 1 and separate two independent magnet cavities along its thickness, resulting in a regular spatial layout that allows for stable, partitioned storage of magnets.

[0030] A protruding shaft 142 is provided on the reinforcing rib 14. The protruding shaft 142 is located inside the magnet cavity and extends protruding towards one side of the cover shell 2. The end face of the protruding shaft 142 is circular, with a small contact area, which can reduce obstruction to the magnet, facilitate the magnet's flexible rotation and movement, and ensure the magnetic attraction effect of the magnetic block.

[0031] In one possible implementation, the reinforcing rib 14 includes four support plates 141, each extending to one of the four inner corners of the main shell 1. Each support plate 141 connects to the sidewall 122 of the reinforcing shell 12 on two adjacent side plates 11, and its end connects to the inner wall of the main shell 1. The four support plates 141, respectively connecting to the sidewall 122 of the reinforcing shell 12 on two adjacent side plates 11, effectively increase the connection contact area, significantly improve the overall structural strength, and effectively avoid shell deformation problems.

[0032] The preferred embodiments disclosed above are merely illustrative of this application. These preferred embodiments do not exhaustively describe all details, nor do they limit the application to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to better understand and utilize this application. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A magnetic block, characterized in that, include: The main shell has four side plates arranged circumferentially and adjacent side plates are vertically connected. Each side plate encloses a cavity and two openings connecting the cavity. The two openings are located on opposite sides of the main shell. Each side plate has a reinforcing shell on its inner wall. The reinforcing shell includes a main wall and side walls located on both sides of the main wall. The main wall and the corresponding side plate are spaced apart. The two side walls are respectively connected to the main wall and the side plate. A magnet cavity is enclosed between two adjacent side plates and the reinforcing shells on the two adjacent side plates. A cavity is formed between the reinforcing shells and the side plates. The reinforcing shell has a strip-shaped thickness end face facing the opening. The cover shell includes a main body and a plurality of welded ribs disposed on the surface of the main body. When the cover shell and the main shell are connected, the cover shell closes the opening. Each welded rib contacts the strip-shaped thickness end face of the corresponding reinforcing shell and is fixed by welding with ultrasonic equipment. Multiple magnets, each of which is freely and movably housed in its respective magnet cavity.

2. The magnetic block according to claim 1, characterized in that, The two side walls of the reinforcing shell are arc-shaped shells that bulge in opposite directions, and the outer convex surface of the arc-shaped shell forms part of the inner wall of the magnet cavity; There is a gap between the reinforcing shells on two adjacent side plates, and the gap is smaller than the minimum external dimensions of the magnet.

3. The magnetic block according to claim 1, characterized in that, Each of the aforementioned welded bars includes straight bars and curved bars located on both sides of the straight bars; When the cover and the main shell are connected, the straight ribs are in contact with the thickness end faces of the corresponding main walls, and the curved ribs are in contact with the thickness end faces of the corresponding side walls.

4. The magnetic block according to claim 3, characterized in that, The main body has a base plate and side retaining ribs located at the edge of the base plate; The welded rib is connected to the base plate and extends out of the side retaining rib.

5. The magnetic block according to claim 4, characterized in that, A welding positioning shaft is provided on the cover shell; A welded positioning cylinder is provided on the inner wall of the main shell; With the cover and the main shell connected, the welding positioning shaft is inserted into the welding positioning cylinder.

6. The magnetic block according to claim 5, characterized in that, The welding positioning cylinder is located in the cavity and is connected to the side plate and the main wall respectively; The welding positioning shaft is located within the area enclosed by the welding ribs on the cover shell, and is connected to the straight ribs of the welding ribs and the side retaining ribs respectively.

7. The magnetic block according to claim 1, characterized in that, The reinforcing shell extends to the two openings at both ends.

8. The magnetic block according to claim 1, characterized in that, The main shell includes reinforcing ribs; The reinforcing ribs are located inside the cavity, and the reinforcing ribs extend to the inner corners of the edges formed between adjacent side plates; Two magnet cavities are formed on the inner corner of each edge of the main shell, and the two magnet cavities are respectively located on both sides of the reinforcing rib along the thickness direction.

9. The magnetic block according to claim 8, characterized in that, The reinforcing rib is provided with a protruding shaft, which is located inside the magnet cavity and extends protruding towards one side of the cover.

10. The magnetic block according to claim 8, characterized in that, The reinforcing rib includes four support plates, each of which extends to the four inner corners of the main shell. Each of the aforementioned support pieces is connected to the sidewall of the reinforcing shell on two adjacent side plates, and its end is connected to the inner wall of the main shell.

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