CN215096681U

CN215096681U - Magnetic stationery drawing pin

Info

Publication number: CN215096681U
Application number: CN202121531135.2U
Authority: CN
Inventors: 杨光
Original assignee: Ningbo Best Meg Magnetoelectric Technology Co ltd
Current assignee: Ningbo Best Meg Magnetoelectric Technology Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-12-10
Anticipated expiration: 2031-07-06

Abstract

The utility model relates to a magnet technical field just discloses a magnetism stationery drawing pin, which comprises a housin, the veneer has the magnet ring in the casing, the magnet ring is arranged in the casing intracavity, be equipped with the connecting pipe on the casing, the connecting pipe intercommunication the casing intracavity, be equipped with the movable rod in the connecting pipe, the ring is connected to movable rod one end, the ejector pad is connected to the movable rod other end, be equipped with the stopper on the connecting pipe. The annular cavity is formed in the magnet ring, the push block is arranged in the magnet ring, an annular connecting block is arranged on the push block, the annular connecting block is arranged in the annular cavity, springs are arranged in the annular cavity, the number of the springs is four, the springs are arranged around the movable rod as the circle center, and the springs are connected with the annular connecting block. This magnetism stationery thumb pin, through install the ejector pad additional in the magnet ring, make the ejecting magnet ring of ejector pad through promoting the movable rod, make the magnet ring keep away from the adsorption surface, reduce the suction and be convenient for take away the thumb pin.

Description

Magnetic stationery drawing pin

Technical Field

The utility model relates to a magnet technical field specifically is a magnetism stationery drawing pin.

Background

With the development of times, the current teaching blackboards generally adopt magnetic blackboards, and magnetic bars are lined inside the blackboards or magnetic particles are attached to the surfaces of the magnetic blackboards. Available magnetism nail during the use, fixed small-size teaching tool such as magnetic path or the convenient show of picture, current magnetism stationery drawing pin adopts the connected mode of casing and magnet veneer usually, long-time the use causes the casing to drop easily, and magnet has magnet suction not enough in the use in addition, can't effectively fix teaching tool, magnet exposes easy oxidation in the air for a long time simultaneously, cause life too short, in addition, when needs take off, the drawing pin adsorbs on the magnetism blackboard, stress point smoothness leads to taking off inconveniently when taking off.

SUMMERY OF THE UTILITY MODEL

The utility model provides a magnetism stationery thumb pin possesses the strong beneficial effect of magnet suction, has solved the easy oxidation of magnet and the shell of mentioning among the above-mentioned background art and is connected not fastening, inconvenient problem when taking off.

The utility model provides a following technical scheme: the utility model provides a magnetism stationery drawing pin, includes the casing, the veneer has the magnet ring in the casing, the magnet ring is arranged in the casing intracavity, be equipped with the connecting pipe on the casing, the connecting pipe intercommunication the casing intracavity, be equipped with the movable rod in the connecting pipe, the ring is connected to movable rod one end, the ejector pad is connected to the movable rod other end, be equipped with the stopper on the connecting pipe.

As an alternative to the magnetic stationery drawing pin of the present invention, wherein: the annular cavity is formed in the magnet ring, the push block is arranged in the magnet ring, an annular connecting block is arranged on the push block, the annular connecting block is arranged in the annular cavity, springs are arranged in the annular cavity, the number of the springs is four, the springs are arranged around the movable rod as the circle center, and the springs are connected with the annular connecting block.

As an alternative to the magnetic stationery drawing pin of the present invention, wherein: a plurality of semicircular grooves are formed in the shell, a plurality of semicircular convex blocks are arranged on one sides, close to the shell, of the magnet ring and the push block, and the convex blocks correspond to the grooves.

As an alternative to the magnetic stationery drawing pin of the present invention, wherein: the magnet ring with the ejector pad surface is equipped with anti-oxidant coating, anti-oxidant coating includes first inoxidizing coating, second inoxidizing coating and third protective layer of cladding from inside to outside in proper order, first inoxidizing coating is the polymer cladding material, the second inoxidizing coating is the nickel coating, the third protective layer is the epoxy resin cladding material.

As an alternative to the magnetic stationery drawing pin of the present invention, wherein: the magnet ring is made of an iron neodymium boron magnet.

The utility model discloses possess following beneficial effect:

1. this magnetism stationery thumb pin, through install the ejector pad additional in the magnet ring, make the ejecting magnet ring of ejector pad through promoting the movable rod, make the magnet ring keep away from the adsorption surface, reduce the suction and be convenient for take away the thumb pin, conveniently take off the magnetism thumb pin from the magnetism blackboard.

2. This magnetism stationery drawing pin, magnet are connected with the casing through compound glue, through the cooperation of recess with the lug, have increased the area of contact of magnet with the casing, can make the casing more firm with being connected of magnet.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the shell structure of the present invention.

Fig. 3 is a schematic structural view of the ring cavity of the present invention.

Fig. 4 is a schematic view of the magnet ring structure of the present invention.

Fig. 5 is a schematic view of the structure of the anti-oxidation coating of the present invention.

In the figure: the device comprises a shell 1, a magnet ring 2, a connecting block 3, a pushing block 4, a bump 5, a connecting pipe 6, a groove 7, an annular cavity 8, a first protective layer 9, a second protective layer 10, a third protective layer 11, a limiting block 12, a movable rod 13, a ring 14 and a spring 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, a magnetic stationery tack comprises a casing 1, a magnet ring 2 glued in the casing 1, the magnet ring 2 disposed in the cavity of the casing 1, a connecting pipe 6 disposed on the casing 1, the connecting pipe 6 connected to the cavity of the casing 1, a movable rod 13 disposed in the connecting pipe 6, a ring 14 connected to one end of the movable rod 13, a push block 4 connected to the other end of the movable rod 13, and a stop block 12 disposed on the connecting pipe 6.

The specific working principle is as follows: casing 1 and magnet ring 2 are connected through compound glue, and the ring 14 that sets up on casing 1 can conveniently hold and put the drawing pin, also can make things convenient for the drawing pin to hang through ring 14 and deposit on the couple, through pressing down movable rod 13, makes the ejecting drawing pin of ejector pad 4, makes the adsorption plane keep away from the adsorption object, reduces and adsorbs the suction between the object, conveniently gets and puts the drawing pin, and the forefinger is arranged in with the middle finger stopper 12 both sides, and the thumb is worn to cooperate in the ring 14, can be more laborsaving the stationery drawing pin of taking off.

Further, an annular cavity 8 is formed in the magnet ring 2, a pushing block 4 is arranged in the magnet ring 2, an annular connecting block 3 is arranged on the pushing block 4, the annular connecting block 3 is arranged in the annular cavity 8, springs 15 are arranged in the annular cavity 8, the number of the springs 15 is four, the springs 15 are arranged around the movable rod 13 as the center of a circle, and the springs 15 are connected with the annular connecting block 3. Through annular connecting block 3 and the cooperation of spring 15 in the annular chamber 8, taking off the back with the picture peg, loosening ring 14 after, spring 15 drives ejector pad 4 and resets.

Furthermore, a plurality of semicircular grooves 7 are formed in the shell 1, a plurality of semicircular convex blocks 5 are arranged on one sides, close to the shell 1, of the magnet ring 2 and the push block 4, and the convex blocks 5 correspond to the grooves 7. The magnet ring 2 is connected with the shell 1 through compound glue, and the contact area of the magnet ring 2 and the shell 1 is increased through the matching of the groove 7 and the convex block 5, so that the shell 1 and the magnet ring 2 can be more stably connected.

Further, magnet ring 2 and ejector pad 4 surface are equipped with anti-oxidation coating, and anti-oxidation coating includes first inoxidizing coating 9, second inoxidizing coating 10 and the third protective layer 11 of cladding in proper order from inside to outside, and first inoxidizing coating 9 is the polymer coating, and second inoxidizing coating 10 is the nickel coating, and third protective layer 11 is the epoxy coating.

The specific working principle is as follows: the first protective layer 9 is made of parylene material, and gaseous monomers are cracked into free radicals by adopting a vapor deposition process and then are directly polymerized into a solid high polymer film on the solid surface, so that no holes can be formed on the surface of a coating material no matter how complex the shape is, and no dead angle is left. The composition of film is parylene HT (polymer), and water, gas transmission rate are extremely low, can be waterproof, prevent salt fog, and acid and alkali-resistance, anti-oxidant, and second inoxidizing coating 10 adopts the nickel coating, and the nickel coating is outstanding with neodymium iron boron magnet's associativity, and third inoxidizing coating 11 is the epoxy coating, and the epoxy adhesion is strong, and mechanical strength is high. Due to various polar groups in the molecule, such as hydroxyl (-OH) and ether (-0-). Because of the polarization of the groups, the epoxy resin molecules and the adjacent object surfaces generate electromagnetic attraction, meanwhile, the epoxy resin can be made into a desired color, and the enthusiasm of children in class can be improved through bright color.

Further, the magnet ring 2 is made of an iron neodymium boron magnet. The neodymium iron boron permanent magnet material is a permanent magnet material based on an intermetallic compound Nd2Fe14B, has extremely high magnetic energy and coercive force, and has a BHmax value which is 5-12 times that of a ferrite magnet and 3-10 times that of an alnico magnet; the coercive force of the drawing pin is 5-10 times that of a ferrite magnet and 5-15 times that of an alnico magnet, the potential magnetic property of the drawing pin is extremely high, and a heavy object with the weight being 640 times that of the drawing pin can be attracted, so that the attraction force of the magnetic drawing pin is greatly enhanced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A magnetic stationery tack comprising a housing (1), characterized in that: casing (1) interior veneer has magnet ring (2), magnet ring (2) are arranged in casing (1) intracavity, be equipped with connecting pipe (6) on casing (1), connecting pipe (6) intercommunication casing (1) intracavity, be equipped with movable rod (13) in connecting pipe (6), ring (14) are connected to movable rod (13) one end, ejector pad (4) are connected to movable rod (13) other end, be equipped with stopper (12) on connecting pipe (6).

2. The magnetic stationery tack of claim 1 wherein: an annular cavity (8) is formed in the magnet ring (2), the push block (4) is arranged in the magnet ring (2), an annular connecting block (3) is arranged on the push block (4), and the annular connecting block (3) is arranged in the annular cavity (8).

3. The magnetic stationery tack of claim 2 wherein: the annular cavity (8) is internally provided with four springs (15), the springs (15) are arranged in a surrounding manner by taking the movable rod (13) as a circle center, and the springs (15) are connected with the annular connecting block (3).

4. The magnetic stationery tack of claim 1 wherein: a plurality of semicircular grooves (7) are formed in the shell (1), a plurality of semicircular convex blocks (5) are arranged on one side, close to the shell (1), of the magnet ring (2) and the push block (4), and the convex blocks (5) correspond to the grooves (7).

5. The magnetic stationery tack of claim 3 wherein: magnet ring (2) with ejector pad (4) surface is equipped with anti-oxidation coating, anti-oxidation coating includes first inoxidizing coating (9), second inoxidizing coating (10) and third inoxidizing coating (11) of cladding from inside to outside in proper order, first inoxidizing coating (9) are the polymer cladding, second inoxidizing coating (10) are the nickel coating, third inoxidizing coating (11) are the epoxy coating.

6. The magnetic stationery tack of claim 1 wherein: the magnet ring (2) is made of an iron neodymium boron magnet.