Chalk taking box

Abstract

The utility model discloses a chalk taking box which comprises a box body, a hanging piece is fixed outside the box body, a plurality of chalk storage holes are vertically formed in the box body, the chalk storage holes are formed in the box body in rows, a lifting block capable of sliding up and down is arranged in each chalk storage hole, and the lifting blocks are arranged in the box body. A plurality of arc-shaped positioning grooves are formed in the hole wall of each chalk storage hole, the multiple positioning grooves are formed in the hole wall in a multi-layer mode and used for positioning a lifting block, a push rod extending downwards from the hole bottom of each chalk storage hole is fixed to the lower portion of each lifting block, and the push rods and the positioning grooves are matched to adjust the positions of the lifting blocks in the chalk storage holes. The chalk box is simple in structure and convenient to use, chalks to be selected can be rapidly taken and used according to needs, meanwhile, unused chalks can be reset and left for next use, and the technical problems that an existing chalk box is complex in structure and the unused chalks are inconvenient to be put back into the chalk box again are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of teaching tools, and in particular relates to a chalk taking box. Background Art

[0002] Chalk is a widely used tool in daily life, and is commonly used in teaching fields, painting fields, etc. Existing chalks are usually stored in rectangular chalk boxes made of cardboard, and each chalk box stores about 10-30 chalks. During actual use, the chalk box is usually placed directly on the teaching desk, but due to the unstable position of the chalk box on the teaching desk, the structural strength of the chalk box is relatively low, which makes the chalk box fall easily due to other human factors, and then causes the chalk to break, affecting use. In addition, for teaching needs, chalk boxes usually store chalks of different colors, so that chalks of different colors can be used for writing in different situations. But chalks of various colors are all concentrated in the chalk box, causing it to be unable to quickly take out chalks of specific colors when in use.

[0003] In order to solve the above technical problems, the patent document with announcement number CN202386020U proposes a chalk box with higher structural strength and convenient for distinguishing colors. Its structure includes a box body, and eight chalk chambers are separated by seven partitions in the box body. A vertical push plate is arranged in the chalk chamber, and a vertical thrust spring fixed to the bottom of the box body is arranged below the vertical push plate; an opening is arranged on the side of the box body corresponding to the top of each chalk chamber, and a slideway is arranged on the top of the box body corresponding to each chalk chamber, and a horizontal push plate is arranged in the slideway, and the upper end of the horizontal push plate extends out of the box body, and the lower end of the horizontal push plate is arranged in the box body, and corresponds to the position of the opening of the chalk chamber, and a horizontal tension spring is arranged between the push plate and the box body. In actual use, the chalk box pushes the chalk to the top of the chalk chamber through the vertical push plate, and then pushes the horizontal push plate to push the chalk out of the opening. In addition, the box body is made of transparent plastic, and the color of the chalk in the chalk chamber can be directly seen, which is convenient for people to distinguish and use chalks of different colors. Although this chalk holder improves the structural strength and is convenient for taking chalks of different colors, it still has the technical defects of being relatively complicated in structure and being unable to put unused chalks back into the chalk box. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned problems existing in the prior art and provide a chalk taking box with simple structure and convenient use. The utility model can realize the rapid taking of the chalk to be selected as needed, and can also reset the unused chalk and keep it for next use, thus solving the technical problems that the existing chalk box has a complicated structure and the unused chalk is inconvenient to put back into the chalk box.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A chalk dispensing box, characterized in that it includes a box body, a hanging part is fixed on the box body, a plurality of chalk storage holes are vertically arranged in the box body, the plurality of chalk storage holes are arranged in a row in the box body, a lifting block that can slide up and down is provided in each chalk storage hole, a plurality of arc-shaped positioning grooves are opened on the hole wall of each chalk storage hole, the plurality of positioning grooves are arranged in multiple layers on the hole wall for positioning the lifting block, a push rod extending downward from the bottom of the chalk storage hole is fixed to the lower part of each lifting block, and the push rod cooperates with the positioning groove to adjust the position of the lifting block in the chalk storage hole.

[0007] The lifting block includes a block body adapted to the chalk storage hole, and blind holes corresponding to the positioning grooves are symmetrically arranged on both sides of the block body. A clamping column with an end extending out of the blind hole is fixed in the blind hole by a spring, and the protruding end of the clamping column is adapted to the positioning groove. The block body can be positioned in the chalk storage hole through the clamping column and the positioning groove.

[0008] The bottom of the chalk storage hole is provided with a square hole or an elliptical hole for the push rod to extend out, and the push rod is a square rod or an elliptical rod matched with the square hole or the elliptical hole.

[0009] The chalk storage holes are arranged in two rows in the box body, and the number of chalk storage holes in each row is 8-12.

[0010] A circular push plate is fixed to the lower end of the push rod.

[0011] The box body is a rectangular structure made of plastic.

[0012] The hanging part is a hook or a hook fixed on one side of the box body.

[0013] By adopting the above technical solution, the beneficial technical effects of the utility model are:

[0014] 1. The utility model can fix the box body on a stable base such as a wall or the edge of a blackboard through a hanging piece, which is helpful to prevent the box body from falling due to human factors and causing the chalk to break. Multiple chalks of different colors can be placed in one time through multiple chalk storage holes, which is helpful to take chalks of different colors as needed and is more convenient to use. And through the mutual cooperation of the push rod, the lifting block and the positioning groove, the height of chalks of different lengths (including unused chalks and partially used chalks) in the chalk storage hole can be adjusted as needed, which is convenient for quick access to chalks and allows each chalk to be used up as much as possible. In addition, in actual application, partially used chalks can be pressed back into the chalk storage hole for storage for next use, which prevents the chalk from being lost and helps to improve the utilization rate of the chalk.

[0015] 2. The utility model cooperates with the positioning groove through the clamping column, which is convenient for the rapid adjustment and positioning of the lifting block in the chalk storage hole and the rapid return of the chalk to the chalk storage hole.

[0016] 3. The utility model can prevent the push rod from rotating by matching the square hole / elliptical hole with the square rod / elliptical rod, thereby ensuring that the lifting block can be accurately positioned by the positioning groove.

[0017] 4. The utility model makes the control of the push rod more convenient, more stable and simpler through the push plate.

[0018] 5. The utility model adopts a hook or a hook as a hanging member, which has a simple structure and is easy to fix. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the planar structure of the utility model;

[0020] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0021] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at I in the middle.

[0022] Marked in the figure: 1, box body, 2, hanging part, 3, chalk storage hole, 4, lifting block, 5, positioning groove, 6, push rod, 7, block, 8, spring, 9, clamping column, 10, push plate, 11, chalk. DETAILED DESCRIPTION

[0023] The present invention is a solution specifically proposed by the inventor in actual teaching work because of the problems described in the background technology. The chalk box has been prepared as a sample, and the inventor has tried it and found that it has the technical effect of facilitating the use of chalk. In order to better protect the present technology, the inventor decided to apply for a patent for the technology. The present invention is further described below in conjunction with the accompanying drawings.

[0024] like Figure 1 , 2As shown, a chalk taking box includes a box body 1, which is preferably a rectangular structure made of hard plastic, and has both good structural strength and light weight. A hanging part 2 is fixed outside the box body 1, and the hanging part 2 is a hook or a hook fixed on one side of the box body 1. The box body 1 can be quickly fixed to the classroom wall or the edge of the blackboard through the hanging part 2. A plurality of chalk storage holes 3 that are adapted to the shape and size of chalk 11 are vertically arranged in the box body 1, and the plurality of chalk storage holes 3 are arranged in a row in the box body 1. The chalk 11 can be stored in the box body 1 through the chalk storage holes 3; the chalk storage holes 3 can be separated by a partition, or can be directly formed integrally with the box body 1. In order to allow as many chalks 11 as possible to be placed in the box body 1 under the premise of being easy to use, it is preferred that the chalk storage holes 3 are arranged in two rows in the box body 1, and the number of chalk storage holes 3 in each row is 8-12, so that 16-24 pieces of chalk 11 can be placed in a box body 1 at the same time. In addition, in order to facilitate the use of each piece of chalk 11, the two rows of chalk storage holes 3 in the box body 1 can also be staggered.

[0025] Furthermore, each chalk storage hole 3 is provided with a lifting block 4 that can slide up and down, and a plurality of arc-shaped positioning grooves 5 are provided on the hole wall of each chalk storage hole 3. The plurality of positioning grooves 5 are arranged on the hole wall in multiple layers, and the number of positioning grooves 5 in each layer is preferably two and adapted to the lifting block 4, so as to facilitate the positioning of the lifting block 4 in the chalk storage hole 3. A push rod 6 extending downward from the bottom of the chalk storage hole 3 is fixed to the lower part of each lifting block 4, and the push rod 6 cooperates with the positioning groove 5 to adjust the position of the lifting block 4 in the chalk storage hole 3, and then the height of the chalk 11 in the chalk storage hole 3 can be adjusted for easy access.

[0026] Specifically, when the push rod 6 is pushed upward, the push rod 6 can drive the lifting block 4 to overcome the limiting force of the positioning groove 5 and move upward until the lifting block 4 enters the positioning groove 5 of the upper layer. When the lifting block 4 moves upward, it will drive the chalk 11 upward synchronously until the upper end of the chalk 11 extends out of the chalk storage hole 3 to be used. Conversely, when the push rod 6 is pulled downward, the chalk 11 can be stored in the chalk storage hole 3. In addition, when it is necessary to store new chalk 11 or the chalk 11 is finished, the chalk 11 can be directly pressed downward from the upper end of the chalk storage hole 3, and the lifting block 4 and the push rod 6 will return to their positions downward under the action of pressure.

[0027] like Figure 3As shown, the lifting block 4 in the utility model includes a block 7 adapted to the chalk storage hole 3, the outer diameter of the block 7 is slightly smaller than the inner diameter of the chalk storage hole 3, the block 7 can slide up and down in the chalk storage hole 3, and blind holes corresponding to the positioning groove 5 are symmetrically arranged on both sides of the block 7, and a clamping column 9 with an end extending out of the blind hole is fixed in the blind hole by a spring 8, and the protruding end of the clamping column 9 is an arc-shaped head adapted to the positioning groove 5, and the arc-shaped head can be inserted into the positioning groove 5 under the action of the spring 8, and the block 7 can be positioned in the chalk storage hole 3 through the arc-shaped head of the clamping column 9 and the positioning groove 5. Specifically, when the arc-shaped head of the clamping column 9 is inserted into the positioning groove 5 under the action of the spring 8, the lifting block 4 is positioned in the chalk storage hole 3 as a whole. When a force greater than the spring 8 is applied to the push rod 6, the force will overcome the limiting force of the positioning groove 5 on the arc head and the elastic force of the spring 8 on the clamping column 9, causing the clamping column 9 to retract into the blind hole, thereby controlling the lifting block 4 to rise or fall, thereby realizing the adjustment of the height of the position of the chalk 11 in the chalk storage hole 3.

[0028] Furthermore, in order to improve the control effect of the push rod 6, the present embodiment preferably provides a square hole or an elliptical hole at the bottom of the chalk storage hole 3 for the push rod 6 to extend, and the push rod 6 is configured as a square rod or an elliptical rod that matches the square hole or the elliptical hole. In this way, when the push rod 6 controls the lifting block 4 to move up and down, the push rod 6 can be prevented from rotating, thereby preventing the clamping column 9 from misaligning with the positioning groove 5.

[0029] like Figure 1 , 2 As shown, in order to better control the push rod 6 , the utility model further has a circular push plate 10 fixed at the lower end of the push rod 6 .

[0030] Taking teaching as an example, the utility model can prepare three chalk boxes at the same time, and hang the box bodies 1 at the two parts and the middle part of the lower side of the blackboard. In actual application, the new chalks 11 in the paper box can be transferred to the three box bodies 1 respectively, and then according to the needs, the upper end of the chalk 11 to be taken can be controlled by the push rod 6 and the lifting block 4 to extend out of the chalk storage hole 3 and be higher than other chalks 11. After the teaching is completed, the partially used chalk 11 can be pressed into the chalk storage hole 3 from the upper end for next use.

[0031] In summary, the utility model can be directly fixed on a wall-like substrate, so that the box body 1 is more stable and will not fall, thus preventing the chalk 11 from being broken. In actual use, not only can new chalk 11 be stored and partially used chalk 11 be put back as needed, but also the specified chalk 11 can be taken out through the push rod 6 and the lifting block 4, which has the advantages of being more convenient to use and improving the utilization rate of the chalk 11.

[0032] The above description is only a specific implementation method of the present utility model. Any feature disclosed in this specification, unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes; all disclosed features, or all methods or steps in the process, except for mutually exclusive features and / or steps, can be combined in any way.

Claims

1. A chalk box, characterized in that: The invention comprises a box body (1), a hanging member (2) is fixed outside the box body (1), a plurality of chalk storage holes (3) are vertically arranged inside the box body (1), the plurality of chalk storage holes (3) are arranged in a row inside the box body (1), a lifting block (4) which can slide up and down is arranged inside each chalk storage hole (3), a plurality of arc-shaped positioning grooves (5) are opened on the hole wall of each chalk storage hole (3), the plurality of positioning grooves (5) are arranged in multiple layers on the hole wall for positioning the lifting block (4), a push rod (6) extending downward from the bottom of the chalk storage hole (3) is fixed at the lower part of each lifting block (4), and the push rod (6) cooperates with the positioning groove (5) to adjust the position of the lifting block (4) inside the chalk storage hole (3).

2. A chalk box according to claim 1, characterized in that: The lifting block (4) comprises a block body (7) adapted to the chalk storage hole (3), blind holes corresponding to the positioning grooves (5) are symmetrically arranged on both sides of the block body (7), a clamping column (9) with an end extending out of the blind hole is fixed in the blind hole by a spring (8), and the protruding end of the clamping column (9) is adapted to the positioning groove (5), and the block body (7) can be positioned in the chalk storage hole (3) by means of the clamping column (9) and the positioning groove (5).

3. A chalk box according to claim 1 or 2, characterized in that: The bottom of the chalk storage hole (3) is provided with a square hole or an elliptical hole for the push rod (6) to extend out, and the push rod (6) is a square rod or an elliptical rod that matches the square hole or the elliptical hole.

4. A chalk box according to claim 1, characterized in that: The chalk storage holes (3) are arranged in two rows in the box body (1), and the number of chalk storage holes (3) in each row is 8-12.

5. The chalk box according to claim 1, characterized in that: A circular push plate (10) is fixed to the lower end of the push rod (6).

6. A chalk box according to claim 1, characterized in that: The box body (1) is a rectangular structure made of plastic.

7. A chalk box according to claim 1, characterized in that: The hanging member (2) is a hanging hook or a hook fixed on one side of the box body (1).

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