CN209756539U - Multifunctional file folder for mathematics - Google Patents

Abstract

The utility model discloses a multi-functional file of mathematics, including first layer board, the two angle symmetries of the inboard of first layer board are provided with the elastic cord, and one side of first layer board has seted up square groove, square inslot portion is provided with L type stop cock, and the other end of L type stop cock installs the extrusion piece, be provided with reset spring between the L type stop cock, one side that L type stop cock was kept away from to first layer board articulates there is the second layer board, and the bottom of second layer board one side is provided with the collet. The utility model discloses install three group's layer boards, adopt "seventy percent discount page or leaf" structure, both can accomodate A3 paper, can accomodate seventy percent discount page or leaf paper again, combine collet, elastic cord and layering, effectively fix the document on the layer board, avoid document fold, landing, and this multi-functional folder is used in mathematical education installs rubber strake and rubber frame, including wrapping up the paper after folding, effectively avoid the rainwater to get into inside, soak the paper.

Description

Multifunctional file folder for mathematics

Technical Field

the utility model relates to a teaching aid technical field specifically is a multi-functional file of mathematics.

Background

the folder is a clamp specially used for containing files or data, is used for containing whole pages of files and data, and mainly aims to better store the files and enable the files to be neat and standard. The existing folder is generally of a 'double-folding' structure, so that three-folding test papers are not convenient to arrange and store, the existing folder cannot prevent rainwater from soaking documents, and the existing folder is single in function and cannot meet the requirements of current use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multi-functional file of mathematics to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multifunctional mathematical file folder comprises a first supporting plate, elastic bands are symmetrically arranged at two corners of the inner side of the first supporting plate, a square groove is formed in one side of the first supporting plate, an L-shaped limiting bolt is arranged in the square groove, an extrusion block is arranged at the other end of the L-shaped limiting bolt, a reset spring is arranged between the L-shaped limiting bolts, a second supporting plate is hinged to one side of the first supporting plate, which is far away from the L-shaped limiting bolt, a bottom support is arranged at the bottom of one side of the second supporting plate, rubber edge strips are arranged on three sides of the non-hinged side of the first supporting plate, pressing assemblies are symmetrically arranged on two sides of the second supporting plate, a third supporting plate is connected to one side of the second supporting plate, which is far away from the first supporting plate, a magnetic writing plate is arranged at the middle position of one side of the third supporting plate, a groove is formed in one side of the third supporting, be provided with the magnetism pen in the recess, and magnetism pen and stopper looks adaptation, the edge of third layer board is provided with the rubber frame, and rubber frame and rubber strake looks adaptation, the third layer board is kept away from one side of magnetism clipboard and is installed the spacing groove, and the spacing groove cooperatees with the spacing bolt of L type, the cavity has all been seted up to the intermediate position department that outside was kept away from to first layer board, second layer board and third layer board, and one side handing-over of cavity has the stabilizer blade, the cavity inboard evenly is provided with spherical spacing groove, the inboard of stabilizer blade articulates there is the connecting rod, and the other end of connecting rod installs spacing ball, spacing ball is inside the cavity, and spacing ball cooperatees with spherical spacing groove.

Preferably, the pressing assembly comprises pressing strips and springs, the pressing strips are hinged to two sides of the top of the second supporting plate respectively, the springs are mounted at one ends, close to hinged edges, of the pressing strips and the second supporting plate, and anti-skidding convex points are uniformly arranged at positions, close to the pressing strips, of one side of the second supporting plate.

Preferably, the outer sides of the extrusion blocks are both provided with rubber layers.

Preferably, a handle is arranged at the hinged position of the first supporting plate and the second supporting plate, and a rubber sleeve is arranged on the outer side of the handle.

Preferably, the size of the second supporting plate is slightly smaller than the size of the first supporting plate and the second supporting plate.

Preferably, the outer sides of the pressing strips are uniformly provided with anti-skidding threads.

Compared with the prior art, the beneficial effects of the utility model are that: the multifunctional folder for mathematical education is provided with three groups of supporting plates, adopts a 'three-folded-page' structure, can accommodate A3 test paper and three-folded-page test paper, effectively fixes the document on the supporting plates by combining a bottom support, an elastic cord and a pressing bar, avoids the fold and the slide of the document, is provided with a rubber edge strip and a rubber frame, wraps the test paper after being folded, effectively prevents rainwater from entering the inside and soaks the test paper, is provided with a cavity, supporting legs and a connecting rod, can pull out the supporting legs to be used as a supporting rod to support the folder, combines a limiting ball and a spherical limiting groove, can randomly adjust the supporting angle, improves the comfort level of teachers and students, pushes out an L-shaped limiting bolt by a reset spring to enable the L-shaped limiting bolt to be limited by the limiting groove, can remove the limit by pressing an extrusion block, and has very simple closing and unfolding operation, effectively saving the operation time in use.

Drawings

Fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the outer structure of the present invention;

FIG. 3 is a schematic view of the structure of the press strip of the present invention;

Fig. 4 is a schematic view of the opening and closing structure of the present invention;

fig. 5 is a schematic view of a partial structure of the present invention.

In the figure: 1. an L-shaped limit bolt; 2. a square groove; 3. elastic bands; 4. a rubber edge strip; 5. a first pallet; 6. layering; 7. a second pallet; 8. a third pallet; 9. a magnetic writing board; 10. a groove; 11. a limiting block; 12. a magnetic pen; 13. a rubber frame; 14. a bottom support; 15. a spring; 16. extruding the block; 17. a limiting groove; 18. a return spring; 19. a grip; 20. a support leg; 21. a cavity; 22. a limiting ball; 23. a spherical limiting groove; 24. a connecting rod.

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.

Referring to fig. 1-5, the present invention provides an embodiment: a multifunctional mathematical file folder comprises a first supporting plate 5, elastic bands 3 are symmetrically arranged at two corners of the inner side of the first supporting plate 5, so that the effect of fixing documents is improved, a square groove 2 is formed in one side of the first supporting plate 5, an L-shaped limiting bolt 1 is arranged in the square groove 2, an extrusion block 16 is arranged at the other end of the L-shaped limiting bolt 1, a reset spring 18 is arranged between the L-shaped limiting bolts 1, a second supporting plate 7 is hinged to one side of the first supporting plate 5, which is far away from the L-shaped limiting bolt 1, a bottom support 14 is arranged at the bottom of one side of the second supporting plate 7, rubber edge strips 4 are arranged on three sides of the non-hinged side of the first supporting plate 5, compression assemblies are symmetrically arranged at two sides of the second supporting plate 7, a third supporting plate 8 is connected to one side of the second supporting plate 7, a magnetic writing plate 9 is arranged at the middle position of one side of the third supporting plate 8, so that temporary, a groove 10 is formed in one side of the third supporting plate 8 far away from the second supporting plate 7, limiting blocks 11 are symmetrically arranged on the inner side wall of the groove 10, a magnetic pen 12 is fixed in the groove 10 to avoid loss, the magnetic pen 12 is arranged in the groove 10, the magnetic pen 12 is matched with the limiting blocks 11, a rubber frame 13 is arranged at the edge of the third supporting plate 8, the rubber frame 13 is matched with a rubber edge strip 4, a limiting groove 17 is arranged at one side of the third supporting plate 8 far away from the magnetic writing plate 9, the limiting groove 17 is matched with an L-shaped limiting bolt 1, cavities 21 are formed in the middle positions of the first supporting plate 5, the second supporting plate 7 and the third supporting plate 8 far away from the outer side, supporting legs 20 are connected to one side of the cavities 21, spherical limiting grooves 23 are uniformly arranged on the inner side of the cavities 21, connecting rods 24 are hinged to the inner sides of the supporting legs 20, limiting balls 22 are arranged at, and the limiting ball 22 is matched with the spherical limiting groove 23, the supporting angle can be adjusted at will, and the use comfort is improved.

In this implementation: the pressing assembly comprises pressing strips 6 and springs 15, two groups of pressing strips 6 are respectively hinged on two sides of the top of a second supporting plate 7, one end, close to a hinged edge, between each pressing strip 6 and the second supporting plate 7 is provided with the spring 15, the position, close to the pressing strip 6, of one side of the second supporting plate 7 is uniformly provided with anti-skidding salient points which are stably fixed in the folder to avoid slipping, the outer sides of the squeezing blocks 16 are provided with rubber layers to improve the stability during squeezing, a handle 19 is arranged at the hinged position between the first supporting plate 5 and the second supporting plate 7, a rubber sleeve is arranged on the outer side of the handle 19 to facilitate carrying and improve the comfort level during holding, the size of the second supporting plate 7 is slightly smaller than that of the first supporting plate 5 and the second supporting plate 7 to enable the rubber edge strips 4 and the rubber frame 13 to be completely folded, the waterproof and damp-proof effects are improved, anti-skidding threads are uniformly, and the slipping is avoided.

The working principle is as follows: the bottom of a document is placed on a bottom support 14, a pressing strip 6 is pulled up and pressed on two sides of the document, a spring 15 pulls down the pressing strip 6, two corners of one side of the document are fixed in an elastic band 3, a third supporting plate 8 is folded inwards firstly, then a first supporting plate 5 is folded inwards, the first supporting plate 5 is pressed to enable an L-shaped limiting bolt 1 to push inwards and limit with a limiting groove 17, a hand-held grip 19 is carried to a classroom, when the document folder is used, a thumb and a forefinger pinch and press two groups of extrusion blocks 16 inwards and pull outwards, the L-shaped limiting bolt 1 and the limiting groove 17 are relieved from limiting, the first supporting plate 5 and the third supporting plate 8 are unfolded outwards, and when the document folder needs to be supported for use, a support leg 20 is pulled outwards, and a limiting ball 22 and a corresponding spherical limiting groove 23 complete limiting.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a multi-functional file of mathematics, includes first layer board (5), its characterized in that: elastic bands (3) are symmetrically arranged at two corners of the inner side of the first supporting plate (5), a square groove (2) is formed in one side of the first supporting plate (5), an L-shaped limiting bolt (1) is arranged inside the square groove (2), an extrusion block (16) is installed at the other end of the L-shaped limiting bolt (1), a reset spring (18) is arranged between the L-shaped limiting bolts (1), a second supporting plate (7) is hinged to one side, away from the L-shaped limiting bolt (1), of the first supporting plate (5), a bottom support (14) is arranged at the bottom of one side of the second supporting plate (7), rubber edgings (4) are installed on three sides, away from the hinged side, of the first supporting plate (5), compression assemblies are symmetrically arranged on two sides of the second supporting plate (7), a third supporting plate (8) is connected to one side, away from the first supporting plate (5), and a magnetic writing plate (9) is installed at the middle position of one side of the third supporting plate (8), a groove (10) is formed in one side, away from the second supporting plate (7), of the third supporting plate (8), limiting blocks (11) are symmetrically arranged on the inner side wall of the groove (10), a magnetic pen (12) is arranged in the groove (10), the magnetic pen (12) is matched with the limiting blocks (11), a rubber frame (13) is arranged at the edge of the third supporting plate (8), the rubber frame (13) is matched with the rubber edge strips (4), a limiting groove (17) is arranged on one side, away from the magnetic writing plate (9), of the third supporting plate (8), the limiting groove (17) is matched with an L-shaped limiting bolt (1), cavities (21) are formed in the middle positions, away from the outer side, of the first supporting plate (5), the second supporting plate (7) and the third supporting plate (8), supporting legs (20) are connected to one side of the cavities (21), spherical limiting grooves (23) are uniformly formed in the inner side of the cavities (21), the inside of stabilizer blade (20) articulates there is connecting rod (24), and the other end of connecting rod (24) installs spacing ball (22), spacing ball (22) are inside cavity (21), and spacing ball (22) cooperate with spherical spacing groove (23).

2. A mathematical multifunctional folder according to claim 1, characterized in that: compress tightly the subassembly and include layering (6) and spring (15), two sets of layering (6) articulate respectively in the both sides at second layer board (7) top, and between layering (6) and second layer board (7) near the one end on articulated limit and install spring (15), the position department that second layer board (7) one side is close to layering (6) all evenly is provided with anti-skidding bump.

3. A mathematical multifunctional folder according to claim 1, characterized in that: and rubber layers are arranged on the outer sides of the extrusion blocks (16).

4. A mathematical multifunctional folder according to claim 1, characterized in that: a handle (19) is arranged at the hinged position of the first supporting plate (5) and the second supporting plate (7), and a rubber sleeve is arranged on the outer side of the handle (19).

5. A mathematical multifunctional folder according to claim 1, characterized in that: the size of the second supporting plate (7) is slightly smaller than that of the first supporting plate (5) and the second supporting plate (7).

6. A mathematical multi-function folder as claimed in claim 2, wherein: the outer sides of the pressing strips (6) are uniformly provided with anti-skidding threads.