TWI732265B - Magnetic sheet - Google Patents

Abstract

The invention discloses a magnetic sheet. The magnetic sheet comprises a frame structure, a plurality of magnetic structures are arranged on the periphery of the frame structure, and the frame structure and the magnetic structures are integrally formed. Each magnetic structure comprises a steel pipe, a magnet in the steel pipe, and plugs at the two ends of the steel pipe. Through the magnetic structures which are integrated with the frame structure, after the magnetic sheet is used for a long time, the magnetic structures still can be attached to a magnetic sheet body, and the problems that the magnetic structures are damaged and fall off are avoided.

Description

A kind of magnetic sheet

The invention relates to the technical field of toys or teaching aids, especially a magnetic sheet.

The magnetic sheet is a kind of toy that is loved by children today. The existing magnetic sheet usually has various shapes such as square, rectangle, triangle, circle, polygon, etc. The structure of the magnetic sheet mainly includes the main body of the magnetic sheet and a plurality of magnetic holders. The magnetic holder has a magnet inside, and a plurality of magnetic holders are respectively clamped on the outer edge of the magnetic plate main body, so that the outer edge of the magnetic plate main body has magnetism, and can form a magnetic attraction type with the outer edge of other magnetic plates The temporary connection or fixation. Through the magnetic attraction of the magnetic holders of a plurality of magnetic plates, the magnetic plates of different shapes, types, and numbers can be placed into various shapes to develop children's imagination.

The magnetic clamping body of the existing magnetic sheet is usually fixed to the main body of the magnetic sheet by mechanical clamping and glue fixing, or pressed to the main body of the magnetic sheet by a machine. After a long time of use, there are problems of damage and falling off. .

In view of this, the object of the present invention is to provide a magnetic sheet.

In order to achieve the above objectives, the technical solutions adopted by the present invention are as follows:

A magnetic sheet, comprising: a frame-shaped structure, a plurality of magnetic structures are arranged along the outer edge of the frame-shaped structure, the frame-shaped structure and the plurality of the magnetic structures are integrally formed; each of the magnetic structures Each includes a steel pipe, a magnet arranged in the steel pipe, and a plug body arranged at both ends of the steel pipe.

The aforementioned magnetic sheet, wherein the frame-shaped structure is provided with a plurality of through holes, and the frame-shaped structure includes: a ring-shaped outer frame portion, and a ring-shaped inner frame provided in the outer frame portion Part, and a connecting part connecting the outer frame part and the inner frame part, wherein a plurality of the magnetic structures are located in the outer frame part.

The above magnetic sheet, wherein the frame structure further comprises: a plurality of reinforcing ribs, the plurality of reinforcing ribs are arranged on the connecting portion, and two ends of the plurality of reinforcing ribs are respectively connected to the outer frame portion Linked to the inner frame portion, a first groove is formed between the plurality of reinforcing ribs.

In the above magnetic sheet, the outer frame portion is provided with a second groove on a side close to the inner frame portion, and two second grooves are provided on both ends of each magnetic structure.

The above-mentioned magnetic sheet, wherein the plug body is an integral structure. The plug body in turn includes: a cylindrical plugging portion that is plugged into the steel pipe, a truncated cone-shaped sealing portion for sealing the steel pipe, and a cylindrical plug connected to the frame structure的连接部。 The connection part.

The above magnetic sheet, wherein the outer diameter of the plugging portion is larger than the outer diameter of the connecting portion; the outer diameter of the larger bottom surface of the sealing portion is larger than the outer diameter of the plugging portion, and the outer diameter of the sealing portion The outer diameter of the smaller bottom surface is larger than the outer diameter of the connecting portion.

In the above-mentioned magnetic sheet, a plurality of the through holes are arranged along the thickness direction of the frame structure, and the plurality of through holes are evenly distributed along a circumference of the outer edge of the frame structure.

The aforementioned magnetic sheet further includes: mushroom pins, and a plurality of the mushroom pins are matched with a plurality of the through holes.

The above-mentioned magnetic sheet further includes a light-emitting system, and the light-emitting system is arranged in the frame structure.

In the above magnetic sheet, the light-emitting system includes a light-emitting element, a controller for driving the light-emitting element, and a power source for supplying power to the light-emitting element and the controller.

Due to the adoption of the above technology, the present invention has the following positive effects compared with the prior art:

Through the magnetic structure integrally formed with the frame structure, the magnetic structure of the magnetic sheet can still be attached to the main body of the magnetic sheet after long-term use, thereby avoiding the problem of damage and falling off of the magnetic structure.

The present invention will be further described below in conjunction with the drawings and specific embodiments, but it is not a limitation of the present invention.

Fig. 1 is a front view of the magnetic plate of the present invention, Fig. 2 is a top view of the magnetic plate of the present invention, Fig. 3 is a perspective view of the magnetic plate of the present invention, Fig. 4 is a schematic diagram of the magnetic structure of the magnetic plate of the present invention, and Fig. 5 It is a front view of the magnetic structure of the magnetic sheet of the present invention. FIG. 6 is a front view of the plug body of the magnetic sheet of the present invention. Please refer to FIGS. 1 to 3, which show a magnetic sheet of a preferred embodiment. It includes: a frame-shaped structure 1. In this embodiment, the frame-shaped structure 1 is a square ring structure; in other embodiments, the frame-shaped structure may also be rectangular, circular, triangular, diamond, Parallelograms, polygons and other planar shapes; in more embodiments, the frame structure 1 may also be cone, cylindrical, truncated cone, pyramid and other three-dimensional shapes. The frame structure 1 is provided with a plurality of through holes 2 and a plurality of magnetic structures 3 are provided along the outer edge of the frame structure 1. The magnetic structure 3 can allow a plurality of the same or different types of the frame structure 1 The room is easily detachable connection. The frame structure 1 and a plurality of the magnetic structures 3 are integrally formed, so as to prevent the magnetic structure 3 from being damaged or falling off during long-term use.

In addition, as a preferred embodiment, each of the magnetic structures 3 includes: a steel pipe 31, a magnet 32 arranged in the steel pipe 31, and a plug body 33 arranged at both ends of the steel pipe 31. In another preferred embodiment, the steel pipe 31 can also be replaced by a tubular structure made of other materials, such as a plastic pipe. The magnet 32 is preferably a cylinder. The structure of the magnetic structure 3 allows the magnet 32 to freely rotate in the axial direction inside the steel pipe 31, so that the direction of the magnetic pole can be adjusted adaptively when it is magnetically attracted to other magnetic plates. Through the plug body 33 to seal the steel pipe 31, the molding material will not contact the magnet 32 during the integral molding of the frame structure 1, thereby avoiding the fixing of the magnet 32.

Further, as a preferred embodiment, the frame structure 1 includes: a ring-shaped outer frame portion 11, a ring-shaped inner frame portion 12 disposed in the outer frame portion 11, and a connecting outer frame The connecting portion 13 of the portion 11 and the inner frame portion 12, wherein a plurality of the magnetic structures 3 are located in the outer frame portion 11. Preferably, the longitudinal section of the outer frame portion 11 may be circular or elliptical, the longitudinal section of the inner frame portion 12 may be circular or elliptical, and the longitudinal section of the connecting portion 13 may be rectangular, wherein the The thickness of the outer frame portion 11 and the thickness of the inner frame portion 12 are both greater than the thickness of the connecting portion 13, so that an annular groove 15 is formed between the outer frame portion 11 and the inner frame portion 12, and the groove 15 The surface of the connecting portion 13 is used as a bottom surface, and the side surface of the outer frame portion 11 and the side surface of the inner frame portion 12 are used as side walls.

Furthermore, as a preferred embodiment, the frame structure 1 further includes: a plurality of reinforcing ribs 14, a plurality of the reinforcing ribs 14 are arranged on the connecting portion 13, and the two ends of the plurality of the reinforcing ribs 14 are respectively It is linked with the outer frame portion 11 and the inner frame portion 12. Specifically, a plurality of the reinforcing ribs 14 are arranged in the groove 15. Preferably, the reinforcing ribs 14 are provided at 3 locations of each of the magnetic structures. In another preferred embodiment, more reinforcing ribs 14 are provided between the outer frame portion 11 and the inner frame portion 12 to adjust the overall strength of the magnetic sheet. A first groove 141 is formed between a plurality of the reinforcing ribs 14. The first groove 141 is formed by a first protrusion on the side of the magnetic structure 3 on the mold. When the magnetic structure 3 is placed in the mold, the magnetic structure The side surface of the structure 3 abuts against the first protrusion, so that the radial direction of the magnetic structure 3 can be restricted by the mold.

Still further, as a preferred embodiment, the outer frame portion 11 is provided with a second groove 111 on a side close to the inner frame portion 12, and two second grooves 111 are provided at both ends of each magnetic structure 3 The second groove 111 is formed by the second protrusions on the two ends of the magnetic structure 3 on the mold. When the magnetic structure 3 is put into the mold, the two ends of the magnetic structure 3 abut against the second protrusions, so that the The axial direction of the magnetic structure 3 can be limited by the mold.

The following describes the method of forming the magnetic sheet in one piece:

Step S1: Provide an upper mold and a lower mold, respectively form a plurality of first protrusions on the upper mold and the lower mold, and form a plurality of second protrusions on the upper mold and the lower mold, wherein the plurality of first protrusions Located at both ends of the predetermined position of the magnetic structure 3, a plurality of second protrusions are located on the side of the predetermined position of the magnetic structure 3.

Step S2: Put a plurality of the magnetic structures 3 into predetermined positions, respectively, and mold together for casting.

In step S1, both the first protrusion and the second protrusion are fixedly connected to the upper mold or the lower mold.

In step S2, preferably, the second protrusion may be an iron rod fixed on the upper mold or the lower mold.

In step S2, the two ends of the magnetic structure 3 respectively abut against the first protrusion, and the side surface of the magnetic structure 3 abuts against the second protrusion, so that the magnetic structure 3 is positioned during casting.

The above descriptions are only preferred embodiments of the present invention, and do not therefore limit the implementation and protection scope of the present invention.

On the basis of the above, the present invention also has the following implementation modes:

In a further embodiment of the present invention, please continue to refer to Figures 1 to 6, the plug body 33 is an integrated structure, and the plug body 33 in turn includes: a cylindrical plugging portion plugged into the steel pipe 31 331. A sealing portion 332 in the shape of a truncated cone for sealing the steel pipe 31, and a connecting portion 333 in the shape of a cylinder connected to the frame structure 1. When the frame structure 1 is integrally formed, part of the material of the frame structure 1 is wrapped outside the connecting portion 333. Furthermore, part of the material of the frame structure 1 can also wrap a part of the sealing portion 332. Thus, the movement of the magnetic structure 3 along the outer edge of the magnetic plate is restricted, and the movement of the magnetic structure 3 in the radial direction of the magnetic plate is also restricted.

In a further embodiment of the present invention, when the frame structure 1 is integrally formed, part of the material of the frame structure 1 can also be wrapped on the side surface of the steel pipe 31, so that the magnetic structure 3 is further in the radial direction of the magnetic sheet. Move in the direction.

In a further embodiment of the present invention, the outer diameter of the plugging portion 331 is greater than the outer diameter of the connecting portion 333; the outer diameter of the larger bottom surface of the sealing portion 332 is greater than the outer diameter of the plugging portion 331, and the sealing portion 332 The outer diameter of the smaller bottom surface is greater than the outer diameter of the connecting portion 333.

In a further embodiment of the present invention, the plurality of through holes 2 are all arranged along the thickness direction of the frame structure 1, and the plurality of through holes 2 are evenly distributed along the outer edge of the frame structure 1. In this embodiment, since the shape of the frame structure 1 is square, the through holes 2 are preferably built at the corners of the frame structure 1. When the frame structure 1 has other shapes, the through holes 2 Hole 2 can be built according to actual needs.

In a further embodiment of the present invention, when the frame structure 1 is triangular, the number of the through holes 2 and the magnetic structure 3 is preferably three, and the through holes 2 are built at the corners of the frame structure 1. The magnetic structure 3 is built on the side of the frame structure 1; when the frame structure 1 is quadrilateral, the through hole 2 and the magnetic structure 3 are preferably four in number, and the through hole 2 is built on the frame At the corner of the structure 1, the magnetic structure 3 is built on the side of the frame structure 1; when the frame structure 1 is polygonal, and so on.

In a further embodiment of the present invention, when the frame structure 1 is circular, the through holes 2 and the magnetic structure 3 are evenly and alternately arranged on the outer edge of the frame structure 1.

In a further embodiment of the present invention, when the frame structure 1 has a three-dimensional structure, the number of the through holes 2 is preferably determined by the number of corners of the frame structure 1; the number of the magnetic structure 3 is less than Preferably, it is determined by the number of edges of the frame structure 1.

In a further embodiment of the present invention, when the frame structure 1 is a three-dimensional structure and has a curved surface, the magnetic structure 3 may be arranged on the curved surface.

Fig. 7 is a schematic diagram of the mushroom pin of the magnetic plate of the present invention, Fig. 8 is a schematic diagram of the dual mushroom pin of the magnetic plate of the present invention, Fig. 9 is a schematic diagram of the triple mushroom pin of the magnetic plate of the present invention, and Fig. 10 is the present invention Another perspective view of the triple mushroom pin of the magnetic sheet, please refer to Figure 7 to Figure 10.

In a further embodiment of the present invention, the magnetic sheet further includes a mushroom pin 4, and a plurality of the mushroom pins 4 are matched with a plurality of the through holes 2, and the two magnetic sheets can be connected by the mushroom pins 4, and through the By selectively setting the mushroom pins 4, a certain angle can be formed between the two magnetic plates, thereby enriching the patterns or structures that can be formed by the magnetic plates. Through the cooperation of different numbers of the mushroom pins 4 and the through holes 2, it is possible to realize the connection of the magnetic sheet in various states.

In a further embodiment of the present invention, the mushroom pin 4 may be a single mushroom pin 41. As shown in FIG. 7, the single mushroom pin 41 has a hemispherical columnar structure at both ends. The outer diameter is slightly larger than the outer diameter of the middle part. Through the single mushroom pin 41, the two magnetic plates can be superimposed in the thickness direction and relatively fixed.

In a further embodiment of the present invention, the mushroom pin 4 may be a two-part mushroom pin 42. As shown in FIG. 8, the two-part mushroom pin 42 includes: two single mushroom pin parts 421, and one connecting two It is preferable that the dual connecting portion 422 of the single mushroom pin portion 421 is made of a flexible material, so that the single mushroom pin portions 421 on both sides can be relatively movable, so as to adapt to the gap between the magnetic plates. Angle adjustment. Through the dual mushroom pin 42, the two magnetic plates can be arranged in the length direction, the width direction or the radial direction and relatively fixed.

In a further embodiment of the present invention, the mushroom pin 4 may be a triple mushroom pin 43. Please refer to Figures 9 and 10. The triple mushroom pin 43 includes three single mushroom pin portions 431, and three For the triple connecting portion 432 of the single mushroom pin portion 431, preferably, the triple connecting portion 432 is made of a flexible material, so that the single mushroom pin portion 431 can be relatively movable to adapt to the angle adjustment between the magnetic plates. Preferably, the triple connecting portion 432 is arcuate. Through the triple mushroom pins 43, the three magnetic plates can be arranged at two or two perpendicular angles and relatively fixed.

In a further embodiment of the present invention, in a preferred case, the three single mushroom pin portions 431 of the triple mushroom pin 43 are perpendicular to each other; in other cases, the three single mushroom pins 43 of the triple mushroom pin 43 are perpendicular to each other. The pin 431 can also be at other angles, so that the three magnetic plates are arranged in other shapes and are relatively fixed.

In a further embodiment of the present invention, the magnetic sheet further includes: a light-emitting system (not shown in the figure), and the light-emitting system is arranged in the frame structure 1.

In a further embodiment of the present invention, the light-emitting system includes: a light-emitting element, a controller for driving the light-emitting element, and a power supply for powering the light-emitting element and the controller.

In a further embodiment of the present invention, the light-emitting element may be an LED lamp bead, an electroluminescent sheet, a light-emitting diode, or the like.

In a further embodiment of the present invention, the light-emitting element may also be electroluminescent powder suspended in the material of the frame structure 1.

In a further embodiment of the present invention, the controller is provided with a program for controlling the light emission of the light-emitting element, and the controller drives the light-emitting element to perform long blinking, short blinking, long bright, long dark, and long blinking, short blinking, long blinking, and long blinking. A combination of bright and long dark.

The above descriptions are only preferred embodiments of the present invention, and do not limit the implementation and protection scope of the present invention. For those skilled in the art, they should be able to realize that all equivalents made by using the description and illustrations of the present invention are equivalent. The solutions obtained by substitutions and obvious changes should all be included in the protection scope of the present invention.

1: Frame structure 2: Through hole 3: Magnetic structure 4: mushroom pin 11: Outer frame 12: Inner frame 13: Connection part 14: stiffener 15: Groove 31: Steel pipe 32: Magnet 33: plug body 41: Single mushroom pin 42: Double Mushroom Pin 43: Triple Mushroom Pin 111: second slot 141: first slot 331: Stuffed part 332: Seal 333: Connecting part 421: Single mushroom pin department 422: Dual connection part 431: Single Mushroom Pin Department 432: Triple connection

Fig. 1 is a front view of the magnetic sheet of the present invention. Fig. 2 is a plan view of the magnetic sheet of the present invention. Fig. 3 is a perspective view of the magnetic sheet of the present invention. Fig. 4 is a schematic diagram of the magnetic structure of the magnetic sheet of the present invention. Fig. 5 is a front view of the magnetic structure of the magnetic sheet of the present invention. Fig. 6 is a front view of the plug body of the magnetic sheet of the present invention. Fig. 7 is a schematic diagram of the mushroom pin of the magnetic sheet of the present invention. Fig. 8 is a schematic diagram of the dual mushroom pin of the magnetic plate of the present invention. Fig. 9 is a schematic diagram of the triple mushroom pin of the magnetic sheet of the present invention. Fig. 10 is another perspective view of the triple mushroom pin of the magnetic plate of the present invention.

1: Frame structure

2: Through hole

3: Magnetic structure

11: Outer frame

12: Inner frame

13: Connection part

14: stiffener

15: Groove

31: Steel pipe

33: plug body

111: second slot

141: first slot

Claims (10)

A magnetic sheet includes: a frame-shaped structure, and a plurality of magnetic structures are arranged along the outer edge of the frame-shaped structure, the frame-shaped structure and the plurality of the magnetic structures are integrally formed; wherein each of the magnetic structures is It includes: a steel pipe, a magnet arranged in the steel pipe, and a plug body arranged at both ends of the steel pipe; wherein, when the frame structure is integrally formed, the material of the frame structure wraps the plug body At least part of it. The magnetic sheet according to item 1 of the scope of patent application, wherein the frame-shaped structure is provided with a plurality of through holes, and the frame-shaped structure includes: a ring-shaped outer frame part, and a frame part arranged in the outer frame part A ring-shaped inner frame portion and a connecting portion connecting the outer frame portion and the inner frame portion, wherein a plurality of the magnetic structures are located in the outer frame portion. For example, the magnetic sheet described in item 2 of the scope of patent application, wherein the frame structure further includes a plurality of reinforcing ribs, the plurality of reinforcing ribs are arranged on the connecting portion, and the two ends of the plurality of reinforcing ribs are respectively connected to the The outer frame portion and the inner frame portion are linked, and a first groove is formed between the plurality of reinforcing ribs. For example, the magnetic sheet described in item 2 or 3 of the scope of patent application, wherein the outer frame portion is provided with a second groove on the side close to the inner frame portion, and two second grooves are provided at both ends of each magnetic structure. Two slots. For the magnetic sheet described in item 1 of the scope of the patent application, the plug body is an integral structure, and the plug body in turn includes: a cylindrical plugging portion plugged into the steel pipe, and a cylindrical plugging portion for sealing the plug body. The sealing part of the steel pipe in the shape of a truncated cone and a connecting part in the shape of a cylinder connected with the frame structure. The magnetic sheet according to item 5 of the scope of patent application, wherein the outer diameter of the plugging portion is greater than the outer diameter of the connecting portion; the outer diameter of the larger bottom surface of the sealing portion is greater than the outer diameter of the plugging portion, and seal The outer diameter of the smaller bottom surface of the part is larger than the outer diameter of the connecting part. According to the magnetic sheet described in item 1 of the scope of patent application, a plurality of the through holes are arranged along the thickness direction of the frame structure, and the through holes are evenly distributed along the outer edge of the frame structure. The magnetic sheet according to item 7 of the scope of patent application, wherein the magnetic sheet further includes a mushroom pin, and a plurality of the mushroom pins are matched with a plurality of the through holes. The magnetic sheet according to item 1 of the scope of patent application, wherein the magnetic sheet further includes: a light-emitting system, and the light-emitting system is arranged in the frame structure. According to the magnetic sheet described in item 9 of the scope of patent application, the light-emitting system includes: a light-emitting element, a controller for driving the light-emitting element, and a power supply for powering the light-emitting element and the controller.

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