CN212353378U

CN212353378U - Plate for mathematical drawing

Info

Publication number: CN212353378U
Application number: CN201821783700.2U
Authority: CN
Inventors: 唐德君
Original assignee: Wuhan Donghu University
Current assignee: Wuhan Donghu University
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2021-01-15
Anticipated expiration: 2028-10-31

Abstract

The utility model discloses a board is used in mathematics drawing, which comprises a plate body, the plate body is equipped with the coordinate line on the positive lateral wall, and is equipped with four magnets on the back lateral wall of plate body, and the setting of four two bisymmetry of magnet, be equipped with first recess on the adjacent lateral wall of plate body, and rotate through the damping pivot on the lateral wall of first recess and be connected with the swinging arms, still be equipped with two arc openings on the back lateral wall of plate body, and two arc openings are linked together the setting with first recess respectively, be equipped with the second recess on two other adjacent lateral walls of plate body, still be equipped with two bar openings on the back lateral wall of plate body, and two bar openings are linked together with two second recesses respectively, the swinging arms is hollow structure, and is connected through connecting device between swinging arms and the second recess. The utility model discloses in, this mathematics is plate structure for drawing is less, low in cost, and can carry out corresponding regulation according to actual conditions, and the operation is convenient fast.

Description

Plate for mathematical drawing

Technical Field

The utility model relates to a teaching auxiliary assembly technical field especially relates to a board is used in mathematics drawing.

Background

University's mathematics mr needs to draw the curve graph that corresponds with the mathematical formula in the teaching process of deriving the mathematical formula, and the drawing can more directly show the meaning that the formula was expressed, at present teaching process, during the drawing, generally all is that mr directly draws on the blackboard by hand, does not have the coordinate to lead to drawing pleasing to the eye standard inadequately, therefore a mathematics drawing board is suitable for fortune.

Through retrieval, Chinese patent numbers: CN107020865A A drawing board for mathematical drawing, fixed in the front of the fixed plate through the transparent plate, there are chutes on the front side of the fixed plate, there are coordinate board mounts in the interval between fixed plate and the transparent plate, the coordinate board mount includes the base plate placed vertically, equipped with a plurality of gyro wheels on the right flank of the base plate, the gyro wheel is placed in the chute, equipped with a plurality of first crossbars that run through the base plate and can slip from side to side on the base plate, the tip of the first crossbar is equipped with the coordinate board, there are coordinate axes on the coordinate board, the first crossbar is fitted with the first spring; there is the support on the side of base plate, has the sleeve on the support, has the slide bar in the sleeve, and the tip of slide bar has interior stripper plate, and the cover is equipped with the second spring on the sleeve, is equipped with the ejector pin on the another side of interior stripper plate, is equipped with outer stripper plate on the ejector pin, and outer stripper plate and coordinate board laminating have been placed between interior stripper plate and the base plate and have been pushed in advance, and the position of placing of coordinate piece is unrestricted, can be fine get up with the formula one-to-one, wherein there is the defect: in the in-service use process, the part that needs the regulation operation is more, and the operation is comparatively loaded down with trivial details, in addition, sets up more adapting unit, and the cost is higher, and is not portable.

To this end, we propose a plate for mathematical drawing to solve the above problems.

Disclosure of Invention

The utility model aims at solving the problems in the prior art and providing a mathematical drawing board.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a board for mathematics drawing, the package rubbing board body, the plate body is equipped with the coordinate line on the positive lateral wall, and is equipped with four magnets on the back lateral wall of plate body, and four two bisymmetry settings of magnet, be equipped with first recess on the adjacent lateral wall of plate body, and rotate through the damping pivot on the lateral wall of first recess and be connected with the swinging arms, still be equipped with two arc openings on the back lateral wall of plate body, and two arc openings are linked together the setting with first recess respectively, be equipped with the second recess on two other adjacent lateral walls of plate body, still be equipped with two bar openings on the back lateral wall of plate body, and two bar openings are linked together with two second recesses respectively, the swinging arms is hollow structure, and is connected through connecting device between swinging arms and the second recess.

Preferably, the connecting device includes two symmetrical clamping grooves formed in the inner wall of the second groove, a push rod is disposed on the side wall of one side of the oscillating rod, one end of the push rod penetrates through the side wall of the oscillating rod and is slidably connected with the oscillating rod, the other end of the push rod penetrates through the side wall of the arc opening and is slidably connected with the arc opening, a first blocking shoulder is fixedly sleeved on the side wall of the outer side of the push rod, a first spring is further sleeved on the side wall of the outer side of the push rod, two ends of the first spring are respectively abutted against the first blocking shoulder and the inner wall of the oscillating rod, two clamping blocks are symmetrically disposed on the side walls of two sides of the oscillating rod, the two clamping blocks penetrate through the side wall of the oscillating rod and are slidably connected with the oscillating rod, a second blocking shoulder is fixedly sleeved on the side wall of the outer side of the two clamping blocks disposed in the oscillating rod, a second spring is sleeved on the side wall of the clamping block, and two ends of the second spring, the fixture block is provided with a first inclined plane on the side wall of one end close to the push rod, two second inclined planes matched with the first inclined plane are symmetrically arranged on the side wall of one end of the push rod, and a limiting device is arranged between the first inclined planes and the second inclined planes.

Preferably, the limiting device comprises two arc-shaped clamping grooves symmetrically arranged on the second inclined plane in the push rod, and an arc-shaped clamping block matched with the arc-shaped clamping grooves is arranged on the side wall of one side of the clamping block on the first inclined plane.

Preferably, the length of the push rod higher than the side wall of the back of the plate body is smaller than the thickness of the magnet.

Preferably, the first spring is an extension spring and the second spring is a compression spring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a swing arm, push rod, kelly, draw-in groove, arc opening's cooperation, put out the swing arm and insert in the first recess of another plate body, push rod is pushed into to the swing arm again, thereby two kellies stretch out and with the draw-in groove looks joint, thereby accomplish the connection between two plate bodies, thereby can increase the drawing area as required, in addition, can connect wantonly and dismantle between the plate body, and then portable;

2. the utility model discloses a set up coordinate line, a plurality of magnet, through set up the coordinate line on the plate body, can regard as the auxiliary line when drawing the figure for the figure that draws is pleasing to the eye regular, in addition, through the setting of a plurality of magnet, can put the plate body wantonly in required blackboard position department, and the operation is convenient fast, and the adapting unit of plate body is less, low in cost.

Drawings

Fig. 1 is a schematic structural view of a plate for mathematical drawing according to the present invention;

fig. 2 is a schematic structural view of a back surface of a plate for mathematical plotting, which is rotated by 180 degrees;

fig. 3 is a schematic back structural view of the plate for mathematical plotting according to the present invention, in which the swing rod is extended after rotating 180 degrees;

FIG. 4 is a schematic view of the structure at A in FIG. 2;

FIG. 5 is a schematic view of the structure at B in FIG. 3;

fig. 6 is a schematic cross-sectional structure view of a swing lever of a plate for mathematical drawing according to the present invention;

fig. 7 is a schematic view of the structure at C in fig. 6.

In the figure: the plate comprises a plate body 1, a coordinate line 2, a second groove 3, a magnet 4, a swinging rod 5, a clamping block 6, a second spring 7, a first blocking shoulder 8, a first spring 9, a push rod 10, a second blocking shoulder 11, an arc-shaped clamping groove 12, an arc-shaped clamping block 13, an arc-shaped opening 14 and a first groove 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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 to 7, a mathematical drawing board includes a board body 1, the board body 1 having a front side wall provided with a coordinate line 2, and the side wall of the back of the plate body 1 is provided with four magnets 4, the four magnets 4 are symmetrically arranged in pairs, the adjacent side wall of the plate body 1 is provided with a first groove 15, and the side wall of the first groove 15 is rotatably connected with a swing rod 5 through a damping rotating shaft, the damping rotating shaft is not shown in the figure, the automatic fixation can be ensured after the rotation, the side wall of the back surface of the plate body 1 is also provided with two arc-shaped openings 14, and the two arc-shaped openings 14 are respectively communicated with the first groove 15, the other two adjacent side walls of the plate body 1 are provided with the second grooves 3, the side wall of the back surface of the plate body 1 is also provided with two strip-shaped openings, the two strip-shaped openings are respectively communicated with the two second grooves 3, the swing rod 5 is of a hollow structure, and the swing rod 5 is connected with the second grooves 3 through a connecting device;

the connecting device comprises two clamping grooves symmetrically arranged on the inner wall of the second groove 3, a push rod 10 is arranged on the side wall of one side of the oscillating rod 5, the length of the push rod 10 which is higher than the side wall of the back of the plate body 1 is smaller than the thickness of the magnet 4, the situation that the push rod 10 is too long to be higher than the back is prevented, the magnet 4 cannot be attracted and fixed with a blackboard, one end of the push rod 10 penetrates through the side wall of the oscillating rod 5 and is in sliding connection with the side wall, the other end of the push rod 10 penetrates through the side wall of the arc-shaped opening 14 and is in sliding connection with the arc-shaped opening, a first shoulder 8 is fixedly sleeved on the side wall of the outer side of the push rod 10 in the oscillating rod 5, a first spring 9 is further sleeved on the side wall of the outer side of the push rod 10, two ends of the first spring 9 respectively abut against the first shoulder 8 and the inner wall of the oscillating rod 5, the outer side walls of two clamping blocks 6 in the swinging rod 5 are fixedly sleeved with second retaining shoulders 11, the outer side walls of the clamping blocks 6 are sleeved with second springs 7, two ends of each second spring 7 are respectively abutted against the inner wall of the swinging rod 5 and the side wall of each second retaining shoulder 11, each first spring 9 is an extension spring, each second spring 7 is a compression spring, the side wall of one end, close to the push rod 10, of each clamping block 6 is provided with a first inclined surface, the side wall of one end of the push rod 10 is symmetrically provided with two second inclined surfaces matched with the first inclined surfaces, a limiting device is arranged between each first inclined surface and each second inclined surface and comprises two arc-shaped clamping grooves 12 symmetrically arranged on the second inclined surfaces in the push rod 10, one side wall on the first inclined surface in each clamping block 6 is provided with an arc-shaped clamping block 13 matched with the arc-shaped clamping grooves 12, the telescopic state of the two clamping blocks 6 can be adjusted, and the quick connection and disassembly of, the size of the area of the plate body 1 is adjusted according to the size of the required drawing, and in addition, the plate body can be connected and detached, so that the plate is convenient to carry.

In the utility model, when the board for mathematical drawing is used, the connection or the disassembly of the board body is carried out according to the size of the drawing required, the connection mode is explained by lifting, the push rod 10 is rotated to drive the swinging rod 5 to rotate out from the first groove 15, the second groove 3 of another board body 1 is aligned with the swinging rod 5, the push rod 10 slides in the strip-shaped opening and presses the push rod 10, the first inclined plane of the push rod 10 is pressed against the second inclined planes of the two clamping blocks 6, the clamping blocks 6 extend outwards until the arc-shaped clamping blocks 13 are mutually clamped with the arc-shaped clamping grooves 12, the two clamping blocks 6 extend out and are mutually clamped with the clamping grooves arranged in the second groove 3, the connection between the two board bodies 1 is completed, the connection is fast, and the board body 1 is tightly attached to the surface of the board body (the blackboard body is provided with magnetic board in common use in the market) according to the position required to be inserted, can the optional position of adjustment, the operation is convenient fast, and finally, the adapting unit that sets up is less in the plate body 1, low in cost, in addition, can connect the dismantlement wantonly between the plate body 1 to portable.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The board for mathematical drawing comprises a board body (1) and is characterized in that a coordinate line (2) is arranged on the front side wall of the board body (1), four magnets (4) are arranged on the back side wall of the board body (1), the four magnets (4) are arranged in a pairwise symmetry manner, a first groove (15) is arranged on the adjacent side wall of the board body (1), a swinging rod (5) is rotatably connected onto the side wall of the first groove (15) through a damping rotating shaft, two arc-shaped openings (14) are further arranged on the back side wall of the board body (1), the two arc-shaped openings (14) are respectively communicated with the first groove (15), second grooves (3) are arranged on the other two adjacent side walls of the board body (1), two strip-shaped openings are further arranged on the back side wall of the board body (1), and the two strip-shaped openings are respectively communicated with the two second grooves (3), the swing rod (5) is of a hollow structure, and the swing rod (5) is connected with the second groove (3) through a connecting device.

2. The board for mathematical drawing as claimed in claim 1, wherein the connecting device comprises two symmetrical locking slots disposed on the inner wall of the second groove (3), a push rod (10) is disposed on the side wall of one side of the swing rod (5), one end of the push rod (10) penetrates through the side wall of the swing rod (5) and is slidably connected therewith, the other end of the push rod (10) penetrates through the side wall of the arc opening (14) and is slidably connected therewith, a first shoulder (8) is fixedly sleeved on the outer side wall of the push rod (10) located in the swing rod (5), a first spring (9) is further sleeved on the outer side wall of the push rod (10), two ends of the first spring (9) respectively abut against the first shoulder (8) and the inner wall of the swing rod (5), two locking blocks (6) are symmetrically disposed on the side walls of both sides of the swing rod (5), and two fixture blocks (6) run through the lateral wall of swinging arms (5) and rather than sliding connection, are located two in swinging arms (5) fixed cover is equipped with second on the lateral wall of fixture block (6) and keeps off shoulder (11), the cover is equipped with second spring (7) on the lateral wall of the outside of fixture block (6), and the both ends of second spring (7) respectively with the inner wall of swinging arms (5) and the lateral wall that the second kept off shoulder (11) offset, fixture block (6) are close to and are equipped with first inclined plane on the one end lateral wall of push rod (10), the symmetry is equipped with two and first inclined plane assorted second inclined planes on the one end lateral wall of push rod (10), be equipped with stop device between first inclined plane and the second inclined plane.

3. The board for mathematical drawing as claimed in claim 2, wherein said position-limiting means comprises two arc-shaped locking grooves (12) symmetrically disposed on the second inclined surface of the push rod (10), and one side wall of the locking block (6) on the first inclined surface is provided with an arc-shaped locking block (13) matching with the arc-shaped locking groove (12).

4. The plate for mathematical drawing as claimed in claim 2, wherein the length of the push rod (10) higher than the back side wall of the plate body (1) is smaller than the thickness of the magnet (4).

5. The plate for mathematical drawings as claimed in claim 2, characterized in that said first spring (9) is an extension spring and said second spring (7) is a compression spring.