CN211479403U - Mathematics calculation device convenient to carry and use - Google Patents

Abstract

The utility model discloses a mathematics calculation device convenient to carry use relates to stationery technical field, to current use a large amount of manuscript paper and the environmental protection problem that leads to, now proposes following scheme, and it includes the shell, the circular slot has been seted up to the bottom of shell, just inner tube, first baffle, second baffle and spacing ring are installed to the circular slot, the round hole has been seted up on the top of first baffle, just the round hole runs through first baffle and second baffle, all with shell fixed connection of first baffle and second baffle, just first baffle and second baffle all are the level form, first baffle cup joints with the inner tube, just the bottom of spacing ring and inner tube all is located between first baffle and the second baffle. The utility model discloses novel structure, and the device simple structure is practical, easily production and low cost to have complete blank and write the function, small in size portable suits the popularization simultaneously.

Description

Mathematics calculation device convenient to carry and use

Technical Field

The utility model relates to a stationery technical field especially relates to a mathematics calculation device convenient to carry and use.

Background

In daily study and life, people often use draft paper to calculate, and especially student groups need to use a large amount of draft paper every day, so that a large amount of garbage is generated, and the environment-friendly and energy-saving effects are also contradicted, so that a device which is low in cost, portable and reusable is needed to solve the problems, inspiration is obtained from the structure of a scroll, and a mathematic calculation device which is convenient to carry and use is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a mathematics calculation device convenient to carry and use has solved the environmental protection problem that uses draft paper in a large number and lead to.

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

a portable mathematics calculation device, which comprises a shell, wherein the bottom end of the shell is provided with a circular groove, an inner cylinder, a first clapboard, a second clapboard and a spacing ring are arranged in the circular groove, a circular hole is arranged at the top end of the first clapboard, the round hole penetrates through the first clapboard and the second clapboard which are both fixedly connected with the shell, the first clapboard and the second clapboard are both in a horizontal shape, the first clapboard is sleeved with the inner barrel, the bottom ends of the limiting ring and the inner barrel are both positioned between the first clapboard and the second clapboard, the limiting ring is fixedly sleeved with the circumferential outer wall of the inner barrel, and the circumferential outer wall of the inner cylinder is wound with an elastic metal sheet which is positioned at the top end of the first clapboard, the circumference lateral wall of shell has seted up the notch along its direction of height, just the elasticity sheetmetal runs through the notch.

Preferably, one end, far away from the inner cylinder, of the elastic metal sheet is fixedly connected with a round rod, and one side of the elastic metal sheet is coated with white baking varnish.

Preferably, the lid has been cup jointed in the bottom of shell slip, just the top fixedly connected with cylinder of lid, cylindrical top fixedly connected with cotton, just first recess has been seted up to cylindrical circumference outer wall, first snap ring has been seted up to the circumference inner wall of shell, just first recess matches with first snap ring, first recess cup joints with first snap ring.

Preferably, the top fixedly connected with pivot of inner tube, just the shell is run through on the top of pivot, the top fixedly connected with connecting rod of pivot, just the one end that the pivot was kept away from to the connecting rod articulates there is the handle, the top fixedly connected with ball of handle, the second recess has been seted up on the top of shell, just the second recess is run through to the bottom of handle, the second snap ring has been seted up to the circumference lateral wall of handle, just second snap ring and second recess match, the second recess cup joints with the second snap ring.

Preferably, a second circular groove is formed in the bottom end of the inner cylinder, and a white board pen is sleeved in the second circular groove.

The utility model has the advantages that:

1. through the design of the cylindrical shell and the function of integrating the white board, the white board pen and the white board eraser in the shell 1, the volume of the device is reduced, and the device has complete functions and is convenient to carry and use.

2. Through the rotation of handle control inner tube in the shell for the expansion that the elastic metal piece can be quick is with accomodating, realizes the function of blank through the white baking finish of application on the elastic metal piece, and can freely bend and can the plane physical property that expandes when not receiving external force through the elastic metal piece, makes the device need not complicated frame and keeps the blank shape and can directly write.

3. Through the clamping design of recess and snap ring to utilize the softer physical property of plastics texture, make the lid and the handle of the device need not complicated hasp design and can realize quick plug.

In conclusion, the device has the advantages of simple and practical structure, easy production, low cost, complete whiteboard writing function, small volume, portability and suitability for popularization.

Drawings

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

Fig. 2 is an enlarged view of a in fig. 1 according to the present invention.

Fig. 3 is an enlarged view of B in fig. 1 according to the present invention.

Fig. 4 is a top view of the elastic metal sheet of the present invention.

Reference numbers in the figures: the novel white whiteboard marker comprises a shell 1, a first circular groove 2, an inner cylinder 3, a first partition plate 4, a second partition plate 5, a circular hole 6, a limiting ring 7, an elastic metal sheet 8, a notch 9, a cover 10, a cylinder 11, cotton cloth 12, a first groove 13, a first snap ring 14, a rotating shaft 15, a connecting rod 16, a handle 17, a circular ball 18, a second snap ring 19, a second groove 20, a whiteboard marker 21, a circular rod 22, a white baking varnish 23 and a second circular groove 24.

Detailed Description

The technical solution of the embodiment of the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-4, a portable mathematics calculation device comprises a housing 1, a circular groove 2 is arranged at the bottom end of the housing 1, an inner barrel 3, a first partition plate 4, a second partition plate 5 and a limit ring 7 are arranged in the circular groove 2, a round hole 6 is arranged at the top end of the first partition plate 4, the round hole 6 penetrates through the first partition plate 4 and the second partition plate 5, the first partition plate 4 and the second partition plate 5 are fixedly connected with the housing 1, the first partition plate 4 and the second partition plate 5 are both in a horizontal shape, the first partition plate 4 is sleeved with the inner barrel 3, the bottom ends of the limit ring 7 and the inner barrel 3 are both positioned between the first partition plate 4 and the second partition plate 5, the limit ring 7 is fixedly sleeved with the circumferential outer wall of the inner barrel 3, an elastic metal sheet 8 is wound on the circumferential outer wall of the inner barrel 3, the elastic metal sheet 8 is positioned at the top end of the first partition plate 4, the circular side wall of the shell 1 is provided with a notch 9 along the height direction, the elastic metal sheet 8 penetrates through the notch 9, one end, far away from the inner cylinder 3, of the elastic metal sheet 8 is fixedly connected with a round rod 22, one side of the elastic metal sheet 8 is coated with white baking varnish 23, the bottom end of the shell 1 is slidably sleeved with a cover 10, the top end of the cover 10 is fixedly connected with a cylinder 11, the top end of the cylinder 11 is fixedly connected with cotton cloth 12, the outer wall of the circumference of the cylinder 11 is provided with a first groove 13, the inner wall of the circumference of the shell 1 is provided with a first snap ring 14, the first groove 13 is matched with the first snap ring 14, the first groove 13 is sleeved with the first snap ring 14, the top end of the inner cylinder 3 is fixedly connected with a rotating shaft 15, the top end of the rotating shaft 15 penetrates through the shell 1, and the top end of the rotating, just the one end that pivot 15 was kept away from to connecting rod 16 articulates there is handle 17, the top fixedly connected with ball 18 of handle 17, second recess 20 has been seted up on the top of shell 1, just second recess 20 is run through to the bottom of handle 17, second snap ring 19 has been seted up to the circumference lateral wall of handle 17, just second snap ring 19 and the matching of second recess 20, second recess 20 cup joints with second snap ring 19, second circular slot 24 has been seted up to the bottom of inner tube 3, just whiteboard pen 21 has been cup jointed in second circular slot 24.

The working principle is as follows: when the device is used, the cover 10 is pulled out of the shell 1, the white board pen 21 in the inner cylinder 3 is taken out of the second circular groove 24 through the circular hole 6, the ball 18 is pulled, the handle 17 connected with the ball 18 is pulled out of the second circular groove 20, the round rod 22 is pulled, the elastic metal sheet 8 is pulled out of the notch 9 through the round rod 22, the part of the elastic metal sheet 8 positioned in the device is wound on the circumferential outer wall of the inner cylinder 3, the top end of the inner cylinder 3 is provided with the rotating shaft 15, the rotating shaft 15 is rotatably connected with the top end of the shell 1, the bottom end of the inner cylinder 3 is provided with the limiting ring 7, the limiting ring 7 is clamped by the first partition plate 4 and the second partition plate 5, the limiting ring 7 can only rotate relative to the shell 1 but can not move up and down, so that the inner cylinder 3 can stably rotate in the device when the elastic metal sheet 8 is pulled out, after the elastic metal sheet 8 is pulled out of the device, the surface of the elastic metal sheet 8 is coated with white baking varnish 23 to distinguish the writing color of the white board pen 21 and improve the writing display effect of the white board pen 21, the cylinder 11 is arranged in the notch of the cover 10, the cotton cloth 12 is sewed on the top end of the cylinder 11, the writing content of the white board pen 21 can be wiped off through the cotton cloth 12, when the device is used, the handle 17 is rotated, so that the inner cylinder 3 rotates to rewind the elastic metal sheet 8 into the device again until the round rod 22 is contacted with the shell 1, the handle 17 is stuffed into the second groove 20 again to finish the storage and fixation of the elastic metal sheet 8, the second snap ring 19 is designed at the position of the circumferential side wall of the handle 17, the first groove 13 and the first snap ring 14 are designed between the cylinder 11 and the shell 1, through the joint of snap ring and recess for lid 10 and handle 17 can be fixed with being connected of shell 1, and shell 1 adopts plastics material, therefore handle 17 and lid 10 can directly be extracted or put back.

Claims (5)

1. The utility model provides a mathematics calculation device convenient to carry and use, includes shell (1), its characterized in that, circular slot (2) has been seted up to the bottom of shell (1), and install inner tube (3), first baffle (4), second baffle (5) and spacing ring (7) in circular slot (2), round hole (6) have been seted up to the top of first baffle (4), and round hole (6) run through first baffle (4) and second baffle (5), first baffle (4) and second baffle (5) all with shell (1) fixed connection, and first baffle (4) and second baffle (5) all are the level form, first baffle (4) cup joint with inner tube (3), and the bottom of spacing ring (7) and inner tube (3) all is located between first baffle (4) and second baffle (5), spacing ring (7) and the fixed cup joint of circumference outer wall of inner tube (3), and the circumference outer wall of inner tube (3) is around connecing elastic metal piece (8), elastic metal piece (8) are located the top of first baffle (4), notch (9) have been seted up along its direction of height to the circumference lateral wall of shell (1), just elastic metal piece (8) run through in notch (9).

2. The portable mathematics calculation device according to claim 1, characterized in that the end of said elastic metal sheet (8) far from the inner cylinder (3) is fixedly connected with a round bar (22), and one side of said elastic metal sheet (8) is coated with white baking finish (23).

3. The portable mathematics calculation device of claim 1, characterized in that, the bottom of shell (1) is slided and is cup jointed lid (10), and the top fixedly connected with cylinder (11) of lid (10), the top fixedly connected with cotton (12) of cylinder (11), just first recess (13) have been seted up to the circumference outer wall of cylinder (11), first snap ring (14) have been seted up to the circumference inner wall of shell (1), just first recess (13) match with first snap ring (14), first recess (13) cup joint with first snap ring (14).

4. The mathematics calculation device convenient to carry and use of claim 1, characterized in that, the top fixedly connected with pivot (15) of inner tube (3), just shell (1) is run through on the top of pivot (15), the top fixedly connected with connecting rod (16) of pivot (15), just the one end that pivot (15) were kept away from in connecting rod (16) articulates there is handle (17), the top fixedly connected with ball (18) of handle (17), second recess (20) have been seted up on the top of shell (1), just second recess (20) have been run through to the bottom of handle (17), second snap ring (19) have been seted up to the circumference lateral wall of handle (17), just second snap ring (19) and second recess (20) match, second recess (20) cup joint with second snap ring (19).

5. The portable mathematics calculation device according to claim 1, characterized in that the bottom of said inner cylinder (3) is equipped with a second circular groove (24), and a white board pen (21) is connected inside said second circular groove (24).

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