CN213281855U

CN213281855U - Novel chalk box

Info

Publication number: CN213281855U
Application number: CN202020392757.0U
Authority: CN
Inventors: 李忠岘; 王宁; 周蕾
Original assignee: Yunnan Land and Resources Vocational College
Current assignee: Yunnan Land and Resources Vocational College
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-05-28
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses a novel chalk box, including block, trompil, inner chamber, spring, limiting plate, gag lever post, baffle, movable mouthful, first guide block, second guide block, upper cover and fixed block. The chalk box is fixed on the wall, so that the chalk placing problem can be effectively solved, the chalk box is different from the situation that the traditional chalk box is directly placed on the platform so that chalk dust is scattered on the platform, and the sanitary situation of the platform is also ensured to a certain extent; the chalk of different colours can be placed to a plurality of trompils that set up, and in the classroom, the teacher can acquire different chalk according to the demand to increase classroom teaching efficiency, the device simple structure, convenient to use is fit for using widely.

Description

Novel chalk box

Technical Field

The utility model relates to a teaching aid specifically is a novel chalk box, belongs to teaching equipment technical field.

Background

The chalk box is the most common article in schools, is a tool for containing chalk, is usually a cuboid or a cube, and is divided into a color chalk box and a white chalk box, wherein the color of the chalk in the color chalk box is various, and the color of the chalk in the white chalk box is white.

The traditional chalk box is generally made of paper and is usually placed on a platform, and the chalk box contains a lot of dust, so that the platform is dirty and messy when the chalk box is placed on the platform, and teaching is affected; in addition, in a classroom, chalks with various colors are needed for teaching, and in the classroom, the teaching is affected because the color of the chalks is lacked due to insufficient preparation in the early stage. Therefore, a new type of chalk case has been proposed to address the above problems.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a novel chalk holder for solving the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a novel chalk box, including block, trompil, inner chamber, spring and limiting plate, a plurality of the same trompils have been seted up to the inner wall equidistance of block, the inner chamber has been seted up to the inner wall bottom of trompil, the inner wall of inner chamber has the limiting plate through the spring rigid coupling, one side rigid coupling of limiting plate has the gag lever post, the terminal rigid coupling of inner wall of inner chamber has the baffle, the expansion port has been seted up on the surface of baffle, the end of gag lever post runs through the expansion port and places the inside in the trompil.

Preferably, the top of gag lever post is located the inside one side rigid coupling of trompil and is had first guide block, the lateral wall rigid coupling that the trompil is close to first guide block has the second guide block.

Preferably, orthographic projections of the first guide block and the second guide block on a side close to each other on a horizontal plane coincide with each other.

Preferably, the top of the block body is connected with an upper cover in a clamping manner.

Preferably, two lateral walls of the block body are symmetrically and fixedly connected with four same fixed blocks.

Preferably, the first guide block and the second guide block are both in a right-angled triangle structure.

The utility model has the advantages that:

1. the chalk box is fixed on the wall, so that the chalk placing problem can be effectively solved, the chalk box is different from the situation that the traditional chalk box is directly placed on the platform so that chalk dust is scattered on the platform, and the sanitary situation of the platform is also ensured to a certain extent;

2. the chalk of different colours can be placed to a plurality of trompils that set up, and in the classroom, the teacher can acquire different chalk according to the demand to increase classroom teaching efficiency, the device simple structure, convenient to use is fit for using widely.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 3 is a schematic view of the front view structure of the present invention.

In the figure: 1. the block, 2, trompil, 3, inner chamber, 4, spring, 5, limiting plate, 6, gag lever post, 7, baffle, 8, activity mouth, 9, first guide block, 10, second guide block, 11, upper cover, 12, fixed block.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those 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 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.

Please refer to fig. 1-3, a novel chalk box comprises a block body 1, openings 2, an inner cavity 3, a spring 4 and a limiting plate 5, wherein a plurality of same openings 2 are equidistantly formed in the inner wall of the block body 1, chalks of different colors can be conveniently placed, the inner cavity 3 is formed in the bottom end of the inner wall of each opening 2, the limiting plate 5 is fixedly connected to the inner wall of each inner cavity 3 through the spring 4, a limiting rod 6 is fixedly connected to one side of each limiting plate 5, a partition plate 7 is fixedly connected to the tail end of the inner wall of each inner cavity 3, a movable opening 8 is formed in the surface of each partition plate 7, and the tail end of each limiting rod 6 penetrates through the movable opening 8 and is placed in the.

A first guide block 9 is fixedly connected to one side of the top of the limiting rod 6, which is positioned inside the open hole 2, and a second guide block 10 is fixedly connected to the side wall of the open hole 2, which is close to the first guide block 9, so that the falling position can be conveniently controlled; the orthographic projections of the first guide block 9 and the second guide block 10 on the horizontal plane at the sides close to each other are mutually overlapped, so that the limiting is facilitated; the top of the block body 1 is connected with an upper cover 11 in a clamping manner, so that sealing is facilitated; four same fixed blocks 12 are symmetrically and fixedly connected to two side walls of the block body 1, so that the block body is convenient to fix; the first guide block 9 and the second guide block 10 are both in a right-angled triangle structure, so that the guide is facilitated.

When the utility model is used, the device is fixed on the wall body on one side of the blackboard by using screws to match with four fixed blocks 12, then the chalk is used, firstly, the chalk is assembled, a plurality of chalks with different colors are prepared, a plurality of chalks with each color are prepared, the upper cover 11 is opened, a plurality of chalks with the same color are inserted into the same opening 2 from the top, when the chalk is assembled, the end with the smaller diameter of the chalk faces downwards, the end with the larger diameter of the chalk faces upwards, the chalk at the lowest end of the opening 2 falls under the action of the first guide block 9 and the second guide block 10 due to the smaller diameter of the lower end, finally, the diameter of the chalk is gradually increased, the falling of the chalk at the lowest part is limited under the action of the limiting rod 6, thereby the chalk is clamped at the lowest end of the opening 2, at the moment, half of the chalk at the lowest end is positioned below the opening 2, after the chalk is assembled, cover upper cover 11 can, in the classroom, when the teacher acquireed the chalk, can take the chalk of below out from the below of block 1, because gag lever post 6 is through the inner wall connection of spring 4 with inner chamber 3, under the sufficient condition of pressure, gag lever post 6 contracts to can be convenient take out the chalk, follow the same principle afterwards, the below that is located trompil 2 of the second chalk in below makes things convenient for the chalk of next time to extract.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A novel chalk box is characterized in that: including block (1), trompil (2), inner chamber (3), spring (4) and limiting plate (5), a plurality of the same trompil (2) have been seted up to the inner wall equidistance of block (1), inner chamber (3) have been seted up to the inner wall bottom of trompil (2), the inner wall of inner chamber (3) has limiting plate (5) through spring (4) rigid coupling, one side rigid coupling of limiting plate (5) has gag lever post (6), the terminal rigid coupling of inner wall of inner chamber (3) has baffle (7), expansion joint (8) have been seted up on the surface of baffle (7), the end of gag lever post (6) runs through expansion joint (8) and places the inside in trompil (2).

2. The novel chalk box according to claim 1, characterized in that: the top of gag lever post (6) is located inside one side rigid coupling of trompil (2) and is had first guide block (9), lateral wall rigid coupling that trompil (2) is being close to first guide block (9) has second guide block (10).

3. The novel chalk box according to claim 2, characterized in that: the orthographic projections of the first guide block (9) and the second guide block (10) on the sides close to each other on a horizontal plane are mutually coincident.

4. The novel chalk box according to claim 1, characterized in that: the top of the block body (1) is connected with an upper cover (11) in a clamping way.

5. The novel chalk box according to claim 1, characterized in that: two lateral walls of the block body (1) are symmetrically and fixedly connected with four same fixed blocks (12).

6. The novel chalk box according to claim 2, characterized in that: the first guide block (9) and the second guide block (10) are both in a right-angled triangle structure.