CN209883312U

CN209883312U - Chalk box

Info

Publication number: CN209883312U
Application number: CN201920327703.3U
Authority: CN
Inventors: 巨欢乐; 冯涛
Original assignee: Shaanxi Vocational and Technical College
Current assignee: Shaanxi Vocational and Technical College
Priority date: 2019-03-15
Filing date: 2019-03-15
Publication date: 2020-01-03
Anticipated expiration: 2029-03-15

Abstract

The utility model belongs to the technical field of teaching devices, in particular to a chalk box, which comprises a storage box, wherein chalks are arranged in the storage box, the storage box comprises a box body and an integrally formed limiting plate, a first chute is arranged on the limiting plate, a connecting rod is arranged in the first chute, the two ends of the connecting rod are respectively provided with a first pushing head and a second pushing head at the upper end and the lower end of the limiting plate, a limiting spring is positioned in the first chute, a connecting ring is integrally formed at one side of the box body at the corresponding position of the limiting plate, a chalk sleeve is inserted in the connecting ring, a third pushing head is arranged in the chalk sleeve in a penetrating way, a second chute is axially arranged on the chalk sleeve, the third pushing head is integrally formed with a bulge at the corresponding position of the second chute, the bulge passes through the second chute and is connected with a slide block for solving the, meanwhile, the chalk is gradually shortened along with the consumption of the chalk in the using process, so that the chalk is inconvenient to use.

Description

Chalk box

Technical Field

The utility model belongs to the technical field of the teaching device, concretely relates to chalk box.

Background

Chalk boxes are one of the most common items in schools. The chalk box is a tool for containing chalk, and the existing chalk box is usually formed by folding and bonding packing paper into a cuboid or a cube. The chalk is put into the chalk box, and the chalk box of the teacher is taken when the chalk needs to be used. When the chalk is taken in the chalk box again for the first time, the chalk in the chalk box is arranged compactly, so that the taking is very inconvenient, and the breakage of the chalk is easily caused; meanwhile, when the chalk is used for writing, the skin of a finger is easily corroded after the finger is in contact with the chalk for a long time, and meanwhile, the use is inconvenient as the chalk is gradually shortened when being consumed in the use process.

SUMMERY OF THE UTILITY MODEL

Based on the problem mentioned in the above-mentioned background art, the utility model provides a chalk box for solve the finger and contact the easy skin that corrodes with the chalk for a long time, will shorten gradually along with the chalk consumes in the use simultaneously and lead to the use promptly as inconvenient. The utility model adopts the technical scheme as follows:

a chalk box comprises a containing box body and a limiting plate, wherein the containing box body comprises a box body and the limiting plate is integrally formed with the box body, an outlet for discharging chalk is formed in the bottom end of the box body at the position corresponding to the limiting plate, a first sliding groove is formed in the limiting plate, a connecting rod penetrates through the first sliding groove, the two ends of the connecting rod are respectively connected with a first pushing head and a second pushing head, the first pushing head and the second pushing head are respectively arranged on the upper side and the lower side of the limiting plate, a limiting rod is fixedly connected onto the connecting rod and is perpendicular to the connecting rod, a limiting hole is formed in one side of the limiting plate, located on one side of the first sliding groove, one end of the limiting rod penetrates through the limiting hole in a sliding mode, a limiting spring is sleeved on the limiting rod and is located in the first sliding groove, a connecting ring is integrally formed in one side of the box body, the chalk sleeve is internally provided with a third pushing head in a penetrating mode, a second sliding groove is axially formed in the chalk sleeve, the third pushing head is integrally formed to be protruding in the corresponding position of the second sliding groove, and the protruding portion penetrates through the second sliding groove and is connected with a sliding block.

On the basis of the technical scheme, the utility model discloses following improvement has still been made:

further, a mounting groove has been seted up to chalk sleeve outer wall, mounting groove one end and the inside intercommunication of chalk sleeve, install hold-down mechanism in the mounting groove, hold-down mechanism is including articulated first clamp plate of installing in the mounting groove, integrated into one piece has the second clamp plate on the first clamp plate, the compression roller is installed to second clamp plate tip, fixedly connected with mounting panel on the chalk sleeve, install pressure spring on the mounting panel, the compression roller is located the chalk sleeve intraductal.

Furthermore, the first pressing plate is obliquely arranged, one end of the chalk sleeve is provided with a slot, an inserting ring is arranged in the connecting ring, and the inserting ring is fixedly arranged on the box body.

Furthermore, the chalk sleeve is provided with three mounting grooves at equal intervals, and the mounting grooves are internally provided with the pressing mechanisms.

Further, a bracket is arranged on the box body.

The utility model has the advantages that:

1. the chalk sleeve and the box body are detachably connected, the use is convenient, the second pushing head can be slid to drive the first pushing head to push the chalk to enable the chalk part to enter the chalk sleeve, the chalk sleeve can be held for writing during writing, the skin is prevented from being contacted with the chalk for a long time, when the chalk is consumed, the sliding block is pushed to drive the third pushing head to push the chalk out for continuous writing, and therefore the influence on writing when the chalk is shortened is avoided;

2. when in writing, the fingers do not contact with the chalk, so that the fingers cannot be polluted to avoid the pollution of the data when reading the lecture or other data;

3. when the chalk at the position of the limiting plate is taken away, the chalk falls into the position of the limiting plate under the action of gravity to be supplemented, and the chalk is convenient to take.

Drawings

The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

fig. 1 is a schematic structural view of a chalk box according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is a schematic structural view of the storage box in the embodiment of the present invention;

fig. 4 is a schematic view of a longitudinal structure of the storage box in the embodiment of the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 4;

FIG. 6 is a schematic structural view of a chalk sleeve according to an embodiment of the present invention;

FIG. 7 is a schematic longitudinal sectional view of a chalk sleeve according to an embodiment of the present invention;

FIG. 8 is an enlarged view of the structure of FIG. 7 at D;

FIG. 9 is an enlarged view of the structure of FIG. 7 at F;

FIG. 10 is a schematic longitudinal sectional view of a chalk case according to an embodiment of the present invention;

FIG. 11 is an enlarged view of the structure of FIG. 10 at C;

the main element symbols are as follows:

the chalk box comprises a containing box 1, a box body 11, a limiting plate 12, a limiting hole 121, a connecting ring 13, an inserting ring 131, a chalk sleeve 2, a second sliding groove 21, a third pushing head 22, a sliding block 221, a mounting groove 23, a first pressing plate 24, a second pressing plate 241, a pressing roller 242, a slot 25, a mounting plate 26, a pressing spring 27, a support 3, chalk 4, a connecting rod 51, a limiting rod 511, a limiting spring 512, a first pushing head 52 and a second pushing head 53.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1 to 11, a chalk box of this embodiment includes a receiving box 1 for receiving chalk 4, the receiving box 1 includes a box body 11 and a limiting plate 12 integrally formed with the box body 11, an outlet for discharging the chalk 4 is formed at a position corresponding to the limiting plate 12 at a bottom end of the box body 11, a first chute is formed on the limiting plate 12, a connecting rod 51 penetrates through the first chute, a first pushing head 52 and a second pushing head 53 are respectively connected to two ends of the connecting rod 51, the first pushing head 52 and the second pushing head 53 are respectively located at upper and lower sides of the limiting plate 12, the chalk 4 received in the receiving box 1 can be pushed out from the outlet through the first pushing head 52, a limiting rod 511 is fixedly connected to the connecting rod 51, the limiting rod 511 is perpendicular to the connecting rod 51, a limiting hole 121 is formed at one side of the limiting plate 12 of the first chute, one end of the limiting rod 511 is slidably inserted into the limiting hole 121, a limiting, limiting spring 512 is located first spout, first pushing head 52 can return by oneself after removing under the effect of spring 512, box body 11 one side has go-between 13 in limiting plate 12 corresponding position integrated into one piece, it has chalk sleeve 2 to peg graft in the go-between 13, wear to be equipped with third pushing head 22 in the chalk sleeve 2, second spout 21 has been seted up axially on the chalk sleeve 2, third pushing head 22 corresponds position integrated into one piece arch in second spout 21, the arch passes second spout 21 and is connected with slider 221, after chalk 4 gets into in chalk sleeve 2, it can write to hold chalk sleeve 2, it carries out long-time contact with chalk 4 to have avoided the finger.

Mounting groove 23 has been seted up to chalk sleeve 2 outer wall, mounting groove 23 one end and the inside intercommunication of chalk sleeve 2, install hold-down mechanism in the mounting groove 23, wherein, seted up equidistant three mounting groove 23 of having seted up on chalk sleeve 2, all install hold-down mechanism in the mounting groove 23, hold-down mechanism is including articulated first clamp plate 24 of installing in mounting groove 23, integrated into one piece has second clamp plate 241 on first clamp plate 24, compression roller 242 is installed to second clamp plate 241 tip, fixedly connected with mounting panel 26 on chalk sleeve 2, install pressure spring 27 on the mounting panel 26, compression roller 242 is located chalk sleeve 2 intraductally. Under the action of the compression spring 27, the compression roller 242 can press the chalk 4, so that the chalk 4 is prevented from naturally sliding in the chalk sleeve 2.

The first pressing plate 24 is obliquely arranged, one end of the chalk sleeve 2 is provided with a slot 25, an inserting ring 131 is arranged in the connecting ring 13, and the inserting ring 131 is fixedly arranged on the box body 11. The chalk sleeve 2 is convenient to connect with the storage box 1 through the inserting ring 131 and the inserting groove 25, so that the chalk sleeve 2 can be matched with an outlet in the box body 11, and therefore the chalk 4 can be conveniently pushed into the chalk sleeve 2.

The support 3 is installed on the box body 11, and the lower portion of the storage box 1 can be in a suspended state under the action of the support 3, so that the chalk 4 can be better taken.

When the chalk sleeve 2 is used, the chalk sleeve 2 is inserted into the connecting ring 13, the inserting ring 131 is inserted into the inserting groove 25, the inserting ring 131 is gradually contacted and close to the first pressing plate 24 along with the movement of the inserting ring 131, when the inserting ring 131 is contacted with the first pressing plate 24 and then continuously moves, the inserting ring 131 forces the first pressing plate 24 to move, so that the pressing roller 242 is separated from the inner pipe of the chalk sleeve 2, and the interference of the pressing roller 242 on the chalk 4 entering the chalk sleeve 2 can be prevented; then the second pushing head 53 is pushed to drive the first pushing head 52 to move horizontally, the chalk on the limiting plate 12 is pushed into the chalk sleeve 2, then the second pushing head 53 is loosened, the second pushing head 53 returns under the action of the limiting spring 512, finally the chalk sleeve 2 is pulled out to take out the chalk, and the chalk in the box body 11 naturally falls onto the limiting plate 12 under the action of gravity to be supplemented so as to be taken out again;

after the chalk sleeve 2 is separated from the connecting ring 13, the first pressing plate 24 loses the limitation of the inserting ring 131, the pressing roller 242 enters the chalk sleeve 2 again under the action of the pressing spring 27 to press the chalk 4 to avoid natural sliding, the rest part of the chalk 4 is pressed into the chalk sleeve 2 as required, and when the chalk 4 is consumed, the sliding block 221 is pushed to drive the third pushing plate 22 to push the chalk 4 out for continuous use.

The chalk box provided by the utility model is introduced in detail. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a chalk box, includes receiver (1) that is used for placing chalk (4), its characterized in that: the storage box (1) comprises a box body (11) and a limiting plate (12) integrally formed with the box body (11), an outlet for discharging the chalk (4) is formed in the position, corresponding to the limiting plate (12), of the bottom of the box body (11), a first sliding groove is formed in the limiting plate (12), a connecting rod (51) is arranged in the first sliding groove in a penetrating mode, two ends of the connecting rod (51) are respectively connected with a first pushing head (52) and a second pushing head (53), the first pushing head (52) and the second pushing head (53) are respectively arranged on the upper side and the lower side of the limiting plate (12), a limiting rod (511) is fixedly connected onto the connecting rod (51), the limiting rod (511) is perpendicular to the connecting rod (51), a limiting hole (121) is formed in one side of the first sliding groove of the limiting plate (12), one end of the limiting rod (511) is slidably arranged in the limiting hole (121), and a limiting spring (512) is sleeved on the limiting rod (511, spacing spring (512) are located first spout, box body (11) one side corresponds position integrated into one piece in the limiting plate and has go-between (13), it has chalk sleeve (2) to peg graft in go-between (13), wear to be equipped with third pusher (22) in chalk sleeve (2), second spout (21) have been seted up to the axial on chalk sleeve (2), third pusher (22) correspond position integrated into one piece arch in second spout (21), the arch is passed second spout (21) and is connected with slider (221).

2. The chalk holder according to claim 1, characterized in that: mounting groove (23) have been seted up to chalk sleeve (2) outer wall, mounting groove (23) one end and the inside intercommunication of chalk sleeve (2), install hold-down mechanism in mounting groove (23), hold-down mechanism installs first clamp plate (24) in mounting groove (23) including the articulated, integrated into one piece has second clamp plate (241) on first clamp plate (24), compression roller (242) are installed to second clamp plate (241) tip, fixedly connected with mounting panel (26) are gone up in chalk sleeve (2), install pressure spring (27) on mounting panel (26), compression roller (242) are located chalk sleeve (2) intraductally.

3. The chalk holder according to claim 2, characterized in that: the chalk sleeve is characterized in that the first pressing plate (24) is obliquely arranged, one end of the chalk sleeve (2) is provided with a slot (25), an inserting ring (131) is arranged in the connecting ring (13), and the inserting ring (131) is fixedly arranged on the box body (11).

4. A chalk case according to claim 3, characterized in that: the chalk sleeve is characterized in that three mounting grooves (23) are formed in the chalk sleeve (2) at equal intervals, and pressing mechanisms are mounted in the mounting grooves (23).

5. The chalk holder according to claim 4, characterized in that: the box body (11) is provided with a bracket (3).