CN216255838U

CN216255838U - Portable high school mathematics drawing tool bag

Info

Publication number: CN216255838U
Application number: CN202120430340.3U
Authority: CN
Inventors: 周毛措
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2022-04-12
Anticipated expiration: 2031-03-01

Abstract

The application discloses portable high school mathematics drawing instrument package, including box, end cover, handle, square tube, receiver, U type piece, rotating pin, L type pole, T type pole, spring one, fixture block, card hole, hollow block, elliptical rod, elliptical block, dwang, reset coil spring two, magnetic path one, magnetic path two, T type round bar, reset coil spring three, T type piece, draw-in groove and spring two. This application utilizes the rotating pin to rotate L type pole, pulling L type pole removes, L type pole removes and drives T type pole and remove, and then stretch spring one, the rotating pin rotates and extrudees reset coil spring one, the rotating pin rotates and drives magnetism side one and remove and adsorb the laminating with two magnetism sides, the adsorption affinity between magnetism side one and the two magnetism sides is greater than the torsion of reset coil spring two, L type pole is in vertical position this moment, under the effect of spring elasticity, T type pole removes and drives L type pole and remove, and then it gets into inside the card hole to drive the fixture block removal, it is fixed to the joint of end cover to accomplish.

Description

Portable high school mathematics drawing tool bag

Technical Field

The application relates to a mathematics drawing toolkit, in particular to a portable high school mathematics drawing toolkit.

Background

The ruler drawing refers to drawing by using a ruler and compasses without scales. Ruler mapping is a mathematical topic originating from ancient greek. Only compasses and straightedges are used and only a limited number of uses are permitted to solve different plane geometry drawing problems. Ruler and compasses are used for drawing with imagination and are not exactly the same as those in reality.

There is certain defect in the mathematics drawing saddlebag that the tradition used, lacks joint mechanism, has reduced the practicality of saddlebag, lacks installation mechanism simultaneously, causes inconveniently with square tube fixed mounting at the box right-hand member, lacks the convenient stop gear of receiver, causes inconveniently to accomodate the receiver joint inside the square tube, and then inconvenient painting brush is accomodate inside the receiver. Therefore, a portable high school mathematics drawing tool kit is provided for the above problems.

SUMMERY OF THE UTILITY MODEL

A portable high school mathematics drawing toolkit comprises a box body, an end cover, a handle, a square tube, a storage box, a clamping mechanism, an installation mechanism and a limiting mechanism, wherein the end cover is rotatably installed at the top end of the box body;

the clamping mechanism comprises a U-shaped block, a rotating pin, an L-shaped rod, a T-shaped rod and a first spring, the U-shaped block is fixedly mounted at the front end of the box body, the rotating pin is rotatably mounted in the U-shaped block, the T-shaped rod is slidably mounted on the lower side of the annular side face of the rotating pin, the first spring is mounted on the annular side face of the T-shaped rod, two ends of the first spring are fixedly mounted on the T-shaped rod and the annular side face of the rotating pin respectively, the top end of the T-shaped rod penetrates through the rotating pin, the L-shaped rod is fixedly mounted at the top end of the T-shaped rod, and one end of the L-shaped rod is attached to the top end of the end cover;

the installation mechanism comprises a hollow block, an elliptic rod, an elliptic block, a rotating rod and a second reset coil spring, the top end of the square cylinder is fixedly provided with the hollow block, the right end of the box body is fixedly provided with the elliptic rod, the annular side surface of the elliptic rod is provided with the hollow block, the right end of the elliptic rod is rotatably provided with the elliptic block, the left end of the elliptic block is attached to the right end of the hollow block, the rotating rod is fixedly arranged in the middle of the left end of the elliptic block, the second reset coil spring is fixedly arranged on the annular side surface of the rotating rod, and the outer side of the second reset coil spring is fixedly arranged in the elliptic rod;

stop gear includes T type round bar, reset coil spring three, T type piece, draw-in groove and spring two, square tube rear end is rotated and is installed T type round bar, install reset coil spring three on the T type round bar annular side, and three outside fixed mounting of reset coil spring are inside square tube, T type round bar front end extends to square tube inside and fixed mounting has T type piece, the draw-in groove has been seted up to the receiver rear end, and T type piece installs inside the draw-in groove, two springs of symmetry fixed mounting on the inside back wall of square tube, and two front ends of spring laminate with the receiver rear end.

Furthermore, the clamping mechanism is provided with two groups, the two groups are the same in structure, and the two groups are symmetrically arranged at the front end of the box body.

Furthermore, a clamping block is fixedly installed on the L-shaped rod, two clamping holes are symmetrically formed in the top end of the end cover, and the size of the cross section of each clamping hole is the same as that of the cross section of the clamping block.

Furthermore, a miniature bearing and a first reset coil spring are fixedly mounted on the annular side face of the rotating pin, and the outer sides of the miniature bearing and the first reset coil spring are fixedly mounted inside the U-shaped block.

Furthermore, a first magnetic square is fixedly installed on the annular side face of the rotating pin, a second magnetic square is fixedly installed inside the U-shaped block, and the first magnetic square and the second magnetic square are located inside the same vertical face.

Furthermore, an elliptical hole is formed in the right end of the hollow block, an elliptical rod is installed inside the elliptical hole, and the size of the cross section of the elliptical rod is the same as that of the cross section of the elliptical block and that of the cross section of the elliptical hole.

Furthermore, a first magnetic block is fixedly mounted on the annular side face of the rotating rod, a second magnetic block is fixedly mounted inside the elliptic rod, and the first magnetic block and the second magnetic block are located inside the same vertical face.

Further, the clamping groove is composed of a rectangular through groove and a cylindrical groove, the rectangular through groove is formed in the rear end of the storage box, the cylindrical groove is formed in the storage box, and the rear end of the cylindrical groove is communicated with the rectangular through groove.

Furthermore, the front end of the storage box is fixedly provided with a pull ring through a first screw, and the U-shaped block is fixedly arranged on the box body through a second screw.

Furthermore, the hinge is fixedly installed at the rear end of the box body through a first bolt, one end of the hinge is fixedly installed at the rear end of the end cover through a second bolt, and the end cover is rotatably connected with the box body through the hinge.

The beneficial effect of this application is: the application provides a portable high school mathematics drawing toolkit with convenient joint fixed end cover and square cylinder, convenient carry out limit function to the receiver.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic overall structure diagram of an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a clamping mechanism according to an embodiment of the present application;

FIG. 3 is a schematic view of an assembly structure of a pivot pin and a U-shaped block according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a mounting mechanism in accordance with an embodiment of the present application;

FIG. 5 is a schematic structural view of a limiting mechanism according to an embodiment of the present application;

fig. 6 is a schematic view illustrating an assembly structure of a T-shaped block and a slot according to an embodiment of the present application.

In the figure: 1. the box body, 2, the end cover, 3, the handle, 4, the square barrel, 5, the storage box, 6, the U-shaped block, 7, the rotating pin, 8, the L-shaped rod, 9, the T-shaped rod, 10, the first spring, 11, the clamping block, 12, the clamping hole, 13, the hollow block, 14, the elliptical rod, 15, the elliptical block, 16, the rotating rod, 17, the second reset coil spring, 18, the first magnetic block, 19, the second magnetic block, 20, the T-shaped round rod, 21, the third reset coil spring, 22, the T-shaped block, 23, the clamping groove, 24 and the second spring.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-6, a portable high school mathematics drawing tool kit comprises a box body 1, an end cover 2, a handle 3, a square tube 4, a storage box 5, a clamping mechanism, an installation mechanism and a limiting mechanism, wherein the end cover 2 is rotatably installed at the top end of the box body 1, the handle 3 is installed at the front end of the box body 1, the square tube 4 is installed at the right end of the box body 1, and the storage box 5 is slidably installed inside the square tube 4;

the clamping mechanism comprises a U-shaped block 6, a rotating pin 7, an L-shaped rod 8, a T-shaped rod 9 and a first spring 10, the U-shaped block 6 is fixedly installed at the front end of the box body 1, the rotating pin 7 is installed inside the U-shaped block 6 in a rotating mode, the T-shaped rod 9 is installed on the lower side of the annular side face of the rotating pin 7 in a sliding mode, the first spring 10 is installed on the annular side face of the T-shaped rod 9, two ends of the first spring 10 are fixedly installed on the T-shaped rod 9 and the annular side face of the rotating pin 7 respectively, the rotating pin 7 penetrates through the top end of the T-shaped rod 9, the L-shaped rod 8 is fixedly installed at the top end of the T-shaped rod 9, one end of the L-shaped rod 8 is attached to the top end of the end cover 2, a user rotates the end cover 2 through a hinge, then rotates the L-shaped rod 8 through the rotating pin 7, pulls the L-shaped rod 8 to move, the T-shaped rod 9 is driven to move, the first spring 10 is further stretched, the first reset coil spring is extruded through the rotation of the rotating pin 7, the rotating pin 7 rotates to drive the first magnetic side to move and adhere to the second magnetic side in an adsorption mode, the adsorption force between the first magnetic side and the second magnetic side is larger than the torsion force of the reset coil spring II, the positions of the rotating pin 7 and the L-shaped rod 8 are further fixed, the L-shaped rod 8 is located at the vertical position at the moment, the clamping block 11 is aligned with the clamping hole 12 up and down, the T-shaped rod 9 moves to drive the L-shaped rod 8 to move under the action of the elastic force of the first spring 10, the clamping block 11 is further driven to move to enter the clamping hole 12, and clamping and fixing of the end cover 2 are completed;

the installation mechanism comprises a hollow block 13, an elliptical rod 14, an elliptical block 15, a rotating rod 16 and a second reset coil spring 17, the top end of the square cylinder 4 is fixedly provided with the hollow block 13, the right end of the box body 1 is fixedly provided with the elliptical rod 14, the annular side surface of the elliptical rod 14 is provided with the hollow block 13, the right end of the elliptical rod 14 is rotatably provided with the elliptical block 15, the left end of the elliptical block 15 is attached to the right end of the hollow block, the middle position of the left end of the elliptical block 15 is fixedly provided with the rotating rod 16, the annular side surface of the rotating rod 16 is fixedly provided with the second reset coil spring 17, the outer side of the second reset coil spring 17 is fixedly arranged inside the elliptical rod 14, the elliptical block 15 is utilized to rotate the rotating rod 16 to extrude the second reset coil spring 17, the rotating rod 16 rotates to enable the first magnetic block 18 to move to be attached to the second magnetic block 19 in an adsorption mode, and the adsorption force between the first magnetic block 18 and the second magnetic block 19 is larger than the torsion force of the second reset coil spring 17, then the position of the elliptical block 15 is fixed, at the moment, the elliptical block 15 is completely attached to the elliptical rod 14, the square barrel 4 is installed at the right end of the box body 1, the hollow block 13 is installed on the elliptical rod 14, the elliptical block 15 is reversely twisted, the first magnetic block 18 is separated from the second magnetic block 19, under the action of the torsion force of the second reset coil spring 17, the elliptical block 15 rotates to be attached to the right end of the hollow block 13, and then the square barrel 4 is installed;

the limiting mechanism comprises a T-shaped round rod 20, a three reset coil spring 21, a T-shaped block 22, a clamping groove 23 and a second spring 24, the T-shaped round rod 20 is installed at the rear end of the square tube 4 in a rotating mode, the three reset coil spring 21 is installed on the annular side face of the T-shaped round rod 20, the outer side of the three reset coil spring 21 is fixedly installed inside the square tube 4, the front end of the T-shaped round rod 20 extends into the square tube 4 and is fixedly provided with the T-shaped block 22, the clamping groove 23 is formed in the rear end of the storage box 5, the T-shaped block 22 is installed inside the clamping groove 23, the two second springs 24 are symmetrically and fixedly installed on the rear wall inside the square tube 4, the front ends of the two springs 24 are attached to the rear end of the storage box 5, a user rotates the T-shaped round rod 20 by 90 degrees, the T-shaped round rod 20 rotates to extrude the three reset coil spring 21, the T-shaped round rod 20 rotates to drive the T-shaped block 22 to rotate, the T-shaped block 22 rotates to be aligned with the rectangular through groove 23, promote receiver 5 backward, receiver 5 removes and extrudees two 24 springs, and receiver 5 removes and drives draw-in groove 23 and remove, and then makes T type piece 22 pass the rectangle and lead to the inslot portion that gets into the cylinder, and under the effect of the three 21 elasticity power of reset coil spring, T type round bar 20 rotates and drives T type piece 22 and rotate, and then makes T type piece 22 rotate and laminate with cylinder inslot wall completely, and then inside 5 joints of receiver 4 square tubes.

The clamping mechanisms are provided with two groups, the two groups of clamping mechanisms have the same structure, and the two groups of clamping mechanisms are symmetrically arranged at the front end of the box body 1; the L-shaped rod 8 is fixedly provided with a fixture block 11, the top end of the end cover 2 is symmetrically provided with two fixture holes 12, and the size of the cross section of each fixture hole 12 is the same as that of the cross section of the fixture block 11; a miniature bearing and a first reset coil spring are fixedly mounted on the annular side surface of the rotating pin 7, and the outer sides of the miniature bearing and the first reset coil spring are fixedly mounted inside the U-shaped block 6; a first magnetic square is fixedly installed on the annular side surface of the rotating pin 7, a second magnetic square is fixedly installed inside the U-shaped block 6, and the first magnetic square and the second magnetic square are located in the same vertical surface; an elliptical hole is formed in the right end of the hollow block 13, an elliptical rod 14 is installed in the elliptical hole, and the size of the cross section of the elliptical rod 14 is the same as that of the cross section of the elliptical block 15 and that of the cross section of the elliptical hole; a first magnetic block 18 is fixedly mounted on the annular side face of the rotating rod 16, a second magnetic block 19 is fixedly mounted inside the elliptical rod 14, and the first magnetic block 18 and the second magnetic block 19 are located in the same vertical face; the clamping groove 23 consists of a rectangular through groove and a cylindrical groove, the rectangular through groove is formed in the rear end of the storage box 5, the cylindrical groove is formed in the storage box 5, and the rear end of the cylindrical groove is communicated with the rectangular through groove; the front end of the storage box 5 is fixedly provided with a pull ring through a first screw, and the U-shaped block 6 is fixedly arranged on the box body 1 through a second screw; the rear end of the box body 1 is fixedly provided with a hinge through a first bolt, one end of the hinge is fixedly arranged at the rear end of the end cover 2 through a second bolt, and the end cover 2 is rotatably connected with the box body 1 through the hinge.

This application is when using, utilize swivel pin 7 to rotate L type pole 8, pulling L type pole 8 removes, L type pole 8 removes and drives T type pole 9 and removes, and then stretch spring one 10, swivel pin 7 rotates and extrudees reset coil spring one, swivel pin 7 rotates and drives magnetism side one and remove and adsorb the laminating with two magnetism sides, the adsorption affinity between magnetism side one and the two magnetism sides is greater than the torsion of reset coil spring two, and then fix swivel pin 7 and L type pole 8's position, L type pole 8 is in vertical position this moment, make fixture block 11 and card hole 12 align from top to bottom, under the effect of spring one 10 elasticity, T type pole 9 removes and drives L type pole 8 and removes, and then drive fixture block 11 and remove and get into inside card hole 12, it is fixed to the joint of end cover 2 to accomplish.

Utilize oval block 15 to rotate dwang 16, dwang 16 rotates and extrudes reset coil spring two 17, dwang 16 rotates and makes magnetic block one 18 remove and adsorb the laminating with magnetic block two 19, the adsorption affinity between magnetic block one 18 and the magnetic block two 19 is greater than reset coil spring two 17's torsion, and then the position of fixed oval block 15, oval block 15 laminates with elliptical rod 14 completely this moment, install square cylinder 4 at box 1 right-hand member, make hollow block 13 install on elliptical rod 14, reverse twist oval block 15, make magnetic block one 18 and the separation of magnetic block two 19, under the effect of reset coil spring two 17 torsion, oval block 15 rotates and laminates with hollow block 13 right-hand member mutually, and then realize the installation of square cylinder 4.

The application has the advantages that:

utilize the rotating pin to rotate L type pole, pulling L type pole removes, L type pole removes and drives T type pole and remove, and then stretch spring one, the rotating pin rotates and extrudees reset coil spring one, the rotating pin rotates and drives magnetic side one and remove and adsorb the laminating with magnetic side two, the adsorption affinity between magnetic side one and the magnetic side two is greater than reset coil spring two's torsion, and then the position of fixed rotating pin and L type pole, L type pole is in vertical position this moment, make fixture block and card hole align from top to bottom, under the effect of spring elasticity, T type pole removes and drives L type pole and remove, and then drive the fixture block and remove inside getting into the card hole, it is fixed to the joint of end cover to accomplish, the problem that lacks joint mechanism, the saddlebag practicality has been reduced.

2. Utilize oval piece to rotate the dwang, the dwang rotates and extrudes reset coil spring two, the dwang rotates and makes magnetic path one remove and adsorb the laminating with magnetic path two, the adsorption affinity between magnetic path one and the magnetic path two is greater than reset coil spring two's torsion, and then the position of fixed oval piece, oval piece is laminated with the elliptical beam completely this moment, install the square cylinder at the box right-hand member, make hollow block install on the elliptical beam, reverse twisting moves oval piece, make magnetic path one and the separation of magnetic path two, under the effect of reset coil spring two torsion, oval piece rotates and laminates with hollow block right-hand member mutually, and then realize the installation of square cylinder, the problem of lacking installation mechanism has been solved, cause inconvenient drawback with square cylinder fixed mounting at the box right-hand member.

3.90 rotate T type round bar, T type round bar rotates and extrudees three of reset coil springs, T type round bar rotates and drives T type piece and rotates, T type piece rotates and aligns with the logical groove of rectangle on the draw-in groove, promote the receiver backward, the receiver removes and extrudees two springs, the receiver removes and drives the draw-in groove and removes, and then make T type piece pass the logical inslot portion of rectangle through groove entering cylinder inslot, under the effect of three elastic forces of reset coil spring, T type round bar rotates and drives T type piece and rotates, and then make T type piece rotate completely with the laminating of cylinder inslot wall, and then with the painting brush joint inside the square tube, the problem of lacking the convenient stop gear of receiver has been solved, cause inconvenient inside the square tube with the receiver joint, and then inconvenient problem of accomodating inside the receiver.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a portable high school mathematics drawing saddlebag which characterized in that: the clamping device comprises a box body (1), an end cover (2), a handle (3), a square tube (4), a storage box (5), a clamping mechanism, an installation mechanism and a limiting mechanism, wherein the end cover (2) is rotatably installed at the top end of the box body (1), the handle (3) is installed at the front end of the box body (1), the square tube (4) is installed at the right end of the box body (1), and the storage box (5) is slidably installed inside the square tube (4);

the clamping mechanism comprises a U-shaped block (6), a rotating pin (7), an L-shaped rod (8), a T-shaped rod (9) and a first spring (10), the U-shaped block (6) is fixedly mounted at the front end of the box body (1), the rotating pin (7) is mounted inside the U-shaped block (6) in a rotating mode, the T-shaped rod (9) is slidably mounted on the lower side of the annular side face of the rotating pin (7), the first spring (10) is mounted on the annular side face of the T-shaped rod (9), two ends of the first spring (10) are fixedly mounted on the T-shaped rod (9) and the annular side face of the rotating pin (7) respectively, the rotating pin (7) is penetrated through the top end of the T-shaped rod (9), the L-shaped rod (8) is fixedly mounted at the top end of the T-shaped rod (9), and one end of the L-shaped rod (8) is attached to the top end of the end cover (2);

the mounting mechanism comprises a hollow block (13), an elliptical rod (14), an elliptical block (15), a rotating rod (16) and a second reset coil spring (17), the top end of the square tube (4) is fixedly provided with the hollow block (13), the right end of the box body (1) is fixedly provided with the elliptical rod (14), the annular side surface of the elliptical rod (14) is provided with the hollow block (13), the right end of the elliptical rod (14) is rotatably provided with the elliptical block (15), the left end of the elliptical block (15) is attached to the right end of the hollow block, the middle position of the left end of the elliptical block (15) is fixedly provided with the rotating rod (16), the annular side surface of the rotating rod (16) is fixedly provided with the second reset coil spring (17), and the outer side of the second reset coil spring (17) is fixedly arranged inside the elliptical rod (14);

stop gear includes T type round bar (20), three (21) of reset coil spring, T type piece (22), draw-in groove (23) and spring two (24), square tube (4) rear end is rotated and is installed T type round bar (20), install three (21) of reset coil spring on T type round bar (20) the annular side, and reset coil spring three (21) outside fixed mounting inside square tube (4), T type round bar (20) front end extends to square tube (4) inside and fixed mounting has T type piece (22), draw-in groove (23) have been seted up to receiver (5) rear end, and T type piece (22) install inside draw-in groove (23), two (24) of symmetry fixed mounting on the inside rear wall of square tube (4), and laminating mutually of spring two (24) front end and receiver (5) rear end.

2. The portable high school mathematics drawing toolkit of claim 1, characterized in that: the clamping mechanisms are two groups, the clamping mechanisms are the same in structure, and the clamping mechanisms are symmetrically arranged at the front end of the box body (1).

3. The portable high school mathematics drawing toolkit of claim 1, characterized in that: the L-shaped rod (8) is fixedly provided with a clamping block (11), the top end of the end cover (2) is symmetrically provided with two clamping holes (12), and the cross section of each clamping hole (12) is the same as that of the clamping block (11).

4. The portable high school mathematics drawing toolkit of claim 1, characterized in that: the annular side surface of the rotating pin (7) is fixedly provided with a miniature bearing and a first reset coil spring, and the outer sides of the miniature bearing and the first reset coil spring are fixedly arranged in the U-shaped block (6).

5. The portable high school mathematics drawing toolkit of claim 1, characterized in that: the magnetic square I is fixedly installed on the annular side face of the rotating pin (7), the magnetic square II is fixedly installed inside the U-shaped block (6), and the magnetic square I and the magnetic square II are located inside the same vertical face.

6. The portable high school mathematics drawing toolkit of claim 1, characterized in that: an elliptical hole is formed in the right end of the hollow block (13), an elliptical rod (14) is installed inside the elliptical hole, and the size of the cross section of the elliptical rod (14) is the same as that of the cross section of the elliptical block (15) and that of the cross section of the elliptical hole.

7. The portable high school mathematics drawing toolkit of claim 1, characterized in that: the annular side surface of the rotating rod (16) is fixedly provided with a first magnetic block (18), a second magnetic block (19) is fixedly arranged inside the elliptic rod (14), and the first magnetic block (18) and the second magnetic block (19) are positioned inside the same vertical surface.

8. The portable high school mathematics drawing toolkit of claim 1, characterized in that: the clamping groove (23) is composed of a rectangular through groove and a cylindrical groove, the rectangular through groove is formed in the rear end of the storage box (5), the cylindrical groove is formed in the storage box (5), and the rear end of the cylindrical groove is communicated with the rectangular through groove.

9. The portable high school mathematics drawing toolkit of claim 1, characterized in that: the front end of the storage box (5) is fixedly provided with a pull ring through a first screw, and the U-shaped block (6) is fixedly arranged on the box body (1) through a second screw.

10. The portable high school mathematics drawing toolkit of claim 1, characterized in that: the hinge is fixedly installed at the rear end of the box body (1) through a first bolt, one end of the hinge is fixedly installed at the rear end of the end cover (2) through a second bolt, and the end cover (2) is rotatably connected with the box body (1) through the hinge.