CN213228103U

CN213228103U - Chalk sleeve

Info

Publication number: CN213228103U
Application number: CN202021125244.XU
Authority: CN
Inventors: 潘友梅
Original assignee: Huaiyin Normal University
Current assignee: Huaiyin Normal University
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-05-18
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses a chalk cover, the cover comprises a cover body, first recess has been seted up to the inside of the cover body, first spout has all been seted up to the both sides that the inside of the cover body corresponds first recess, the arc wall has all been seted up to one side that the inside of the cover body corresponds two first spouts back of the body mutually, the inside of the cover body is provided with the movable plate, the both sides of movable plate run through respectively to the inside of two first spouts and with the inner wall contact of first spout, the second recess has been seted up to the central point that leans on of movable plate both sides, the second spout has all been seted up to the top and the bottom that the inside of movable plate corresponds the second recess. This chalk cover through the design of arc splint, limiting plate, spacing spring, movable rod and fixed plate, when the chalk was placed first recess from the draw-in groove, expandes arc splint to both sides for contact between chalk and two arc splint, through spacing spring's restorer nature, two arc splint that can be convenient for are fixed the chalk.

Description

Chalk sleeve

Technical Field

The utility model relates to a teacher technical field specifically is a chalk cover.

Background

The teacher refers to a person who teaches students' knowledge and also refers to a person who is worth learning in some aspect and can bring certain correct knowledge and guidance to people and has the ability. When a teacher is teaching, the teacher can use chalk to teach.

When the chalk is used, the chalk dust can be stained on the hand of a user, and the chalk is not easy to clean after a long time, so that the chalk is inconvenient for the user to use. Therefore, we propose a chalk sleeve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chalk sleeve to propose when using the chalk in solving above-mentioned background art, the user can be stained with the chalk dust on hand, and long time is difficult to be washd, the problem that the person of not being convenient for used.

In order to achieve the above object, the utility model provides a following technical scheme: a chalk sleeve comprises a sleeve body, wherein a first groove is formed in the sleeve body, first sliding grooves are formed in the sleeve body and correspond to two sides of the first groove, arc-shaped grooves are formed in the sleeve body and correspond to one side, opposite to each other, of each first sliding groove, a moving plate is arranged in the sleeve body, two sides of the moving plate respectively penetrate through the two first sliding grooves and are in contact with the inner walls of the first sliding grooves, a second groove is formed in the position, close to the center, of each two sides of the moving plate, second sliding grooves are formed in the moving plate and correspond to the top and the bottom of each second groove, a sliding block is arranged in each second groove, the top and the bottom of each sliding block respectively penetrate through the two second sliding grooves and are in contact with the inner walls of the second sliding grooves, fixed plates are fixedly connected to two sides of the bottom of the moving plate, and arc-shaped clamping plates are arranged on one, the utility model discloses a clamp plate, including two arc splint, the equal fixedly connected with movable rod in one side that two arc splint carried on the back mutually, one side that arc splint were kept away from to the movable rod run through to the outside of fixed plate and with fixed plate sliding connection, the one end fixedly connected with limiting plate of arc splint is kept away from to the movable rod, the central point that leans on at movable plate top puts the fixedly connected with depression bar, the top of depression bar runs through to the outside of the cover body, the bottom fixed mounting of the cover body has the handle, the draw-in groove has been seted up to the inside of handle, the.

Preferably, one side, opposite to the two sliding blocks, of each sliding block is fixedly connected with a return spring, and one side, far away from the sliding blocks, of each return spring is fixedly connected with the inner portion of the second groove.

Preferably, two equal fixedly connected with arc fixture block in one side that the slider was carried on the back mutually, one side that the slider was kept away from to the arc fixture block runs through to the inside of arc wall and contacts with the inner wall of arc wall.

Preferably, both sides of the top of the moving plate are fixedly connected with telescopic rods, and the top of each telescopic rod is fixedly connected with the top of the corresponding first groove.

Preferably, the surface of the movable rod is provided with a limiting spring, and two sides of the limiting spring are respectively and fixedly connected with the limiting plate and the fixing plate.

Preferably, the surface of the sleeve body is fixedly connected with an anti-skid pad, and the anti-skid pad is positioned on the position close to the center of the surface of the sleeve body.

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

this chalk cover, through the arc splint, the limiting plate, spacing spring, the design of movable rod and fixed plate, when the chalk is placed first recess from the draw-in groove, expand arc splint to both sides, make the contact between chalk and two arc splint, the nature of reseing through spacing spring, two arc splint of can being convenient for fix the chalk, the movable plate, first spout, the arc wall, the second spout, the slider, the design of reset spring and arc fixture block, can convenient to use person adjust the length of chalk through pressing downwards or the rebound depression bar, so that the better use chalk of user of using teaches, user's use has been convenient for.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1 according to the present invention;

fig. 4 is a perspective view of the structure of the present invention.

In the figure: 1. a sleeve body; 2. a first groove; 3. a first chute; 4. an arc-shaped slot; 5. moving the plate; 6. a second groove; 7. a second chute; 8. a slider; 9. a return spring; 10. an arc-shaped fixture block; 11. a telescopic rod; 12. a pressure lever; 13. a fixing plate; 14. a movable rod; 15. an arc-shaped splint; 16. a limiting plate; 17. A limiting spring; 18. a grip; 19. a card slot; 20. a non-slip mat.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a chalk sleeve comprises a sleeve body 1, wherein a first groove 2 is formed in the sleeve body 1, first sliding grooves 3 are formed in the sleeve body 1 corresponding to two sides of the first groove 2, arc-shaped grooves 4 are formed in the sleeve body 1 corresponding to one side, opposite to the two first sliding grooves 3, a moving plate 5 is arranged in the sleeve body 1, two sides of the moving plate 5 penetrate into the two first sliding grooves 3 respectively and are in contact with the inner walls of the first sliding grooves 3, a second groove 6 is formed in the position, close to the center, of two sides of the moving plate 5, second sliding grooves 7 are formed in the moving plate 5 corresponding to the top and the bottom of the second groove 6 respectively, a sliding block 8 is arranged in the second groove 6, the top and the bottom of the sliding block 8 penetrate into the two second sliding grooves 7 respectively and are in contact with the inner walls of the second sliding grooves 7, fixed plates 13 are fixedly connected to two sides of the bottom of the moving plate 5, arc-shaped clamping plates 15 are arranged, two arc splint 15 equal fixedly connected with movable rod 14 in one side that back on the back mutually, one side that arc splint 15 were kept away from to movable rod 14 run through to the outside of fixed plate 13 and with fixed plate 13 sliding connection, one end fixedly connected with limiting plate 16 that arc splint 15 were kept away from to movable rod 14, the central point that leans on at movable plate 5 top puts fixedly connected with depression bar 12, the top of depression bar 12 runs through to the outside of overlapping body 1, the bottom fixed mounting who overlaps body 1 has handle 18, draw-in groove 19 has been seted up to the inside of handle 18, the top of draw-in groove 19 runs through with first recess 2's bottom.

The utility model discloses in: one sides of the two sliding blocks 8 opposite to each other are fixedly connected with a return spring 9, and one side of the return spring 9 far away from the sliding blocks 8 is fixedly connected with the inside of the second groove 6; the design of the return spring 9 can play a role of returning.

The utility model discloses in: the arc-shaped clamping blocks 10 are fixedly connected to the opposite sides of the two sliding blocks 8, and one side, far away from the sliding blocks 8, of each arc-shaped clamping block 10 penetrates into the arc-shaped groove 4 and is in contact with the inner wall of the arc-shaped groove 4; the arc-shaped clamping blocks 10 and the arc-shaped grooves 4 can limit the moving plate 5.

The utility model discloses in: both sides of the top of the moving plate 5 are fixedly connected with telescopic rods 11, and the top of each telescopic rod 11 is fixedly connected with the top in the corresponding first groove 2; the design of telescopic link 11 can play the effect of buffering.

The utility model discloses in: a limiting spring 17 is arranged on the surface of the movable rod 14, and two sides of the limiting spring 17 are respectively fixedly connected with the limiting plate 16 and the fixed plate 13; the design of limiting spring 17 can play the effect of restoring to the throne.

The utility model discloses in: the surface of the sleeve body 1 is fixedly connected with an anti-skid pad 20, and the anti-skid pad 20 is positioned at the position close to the center of the surface of the sleeve body 1; the non-slip mat 20 is designed to be non-slip.

The working principle is as follows: before use, a user places the chalk in the first groove 2 from the clamping groove 19, the arc-shaped clamping plates 15 are unfolded towards two sides through the chalk, so that the chalk is in contact with the two arc-shaped clamping plates 15, and the chalk can be conveniently fixed by the two arc-shaped clamping plates 15 through the resetting performance of the limiting springs 17; when the chalk is used, a user drives the moving plate 5 to move in the first sliding groove 3 by pressing down or moving up the pressing rod 12, so that the arc-shaped clamping block 10 drives the sliding block 8 to move in the second sliding groove 7, and the chalk is moved from one arc-shaped groove 4 to the other arc-shaped groove 4 to adjust the length of the chalk, so that the chalk can be conveniently taught.

In summary, the following steps: this chalk cover, through arc splint 15, limiting plate 16, limiting spring 17, the design of movable rod 14 and fixed plate 13, when the chalk is placed first recess 2 from draw-in groove 19, expand arc splint 15 to both sides, make the contact between chalk and two arc splint 15, the nature of reseing through limiting spring 17, two arc splint 15 of can being convenient for fix the chalk, the movable plate 5, first spout 3, arc wall 4, second spout 7, slider 8, reset spring 9 and arc fixture block 10's design, can convenient to use person adjust the length of chalk through pressing downwards or rebound depression bar 12, so that the better use chalk of user of being convenient for teaches, user's use has been convenient for.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A chalk sleeve comprises a sleeve body (1), and is characterized in that: the sleeve is characterized in that a first groove (2) is formed in the sleeve body (1), first sliding grooves (3) are formed in the sleeve body (1) and correspond to two sides of the first groove (2), arc-shaped grooves (4) are formed in one side of the sleeve body (1) corresponding to two opposite sides of the first sliding grooves (3), a movable plate (5) is arranged in the sleeve body (1), two sides of the movable plate (5) respectively penetrate through the two first sliding grooves (3) and are in contact with the inner walls of the first sliding grooves (3), a second groove (6) is formed in the position, close to the center, of two sides of the movable plate (5), second sliding grooves (7) are formed in the movable plate (5) and correspond to the top and the bottom of the second groove (6), a sliding block (8) is arranged in the second groove (6), the top and the bottom of the sliding block (8) respectively penetrate through the two second sliding grooves (7) and are in contact with the inner walls of the second sliding grooves (7), the two sides of the bottom of the movable plate (5) are fixedly connected with fixed plates (13), one side of each fixed plate (13) opposite to the other side is provided with an arc-shaped clamping plate (15), one side of each arc-shaped clamping plate (15) opposite to the other side is fixedly connected with a movable rod (14), one side of the movable rod (14) far away from the arc-shaped clamping plate (15) penetrates through the outer part of the fixed plate (13) and is connected with the fixed plate (13) in a sliding way, one end of the movable rod (14) far away from the arc-shaped clamping plate (15) is fixedly connected with a limiting plate (16), a pressure lever (12) is fixedly connected at the position close to the center of the top of the moving plate (5), the top of the pressure lever (12) penetrates to the outside of the sleeve body (1), the bottom of the sleeve body (1) is fixedly provided with a grip (18), a clamping groove (19) is formed in the handle (18), and the top of the clamping groove (19) penetrates through the bottom of the first groove (2).

2. A chalk cover according to claim 1, characterized in that: the two sliding blocks (8) are fixedly connected with a return spring (9) on the opposite side, and one side, away from the sliding blocks (8), of the return spring (9) is fixedly connected with the inner portion of the second groove (6).

3. A chalk cover according to claim 1, characterized in that: the two sliding blocks (8) are fixedly connected with arc-shaped clamping blocks (10) on the opposite sides, and one side, away from the sliding blocks (8), of each arc-shaped clamping block (10) penetrates through the inner portion of the arc-shaped groove (4) and contacts with the inner wall of the arc-shaped groove (4).

4. A chalk cover according to claim 1, characterized in that: the two sides of the top of the moving plate (5) are fixedly connected with telescopic rods (11), and the top of each telescopic rod (11) is fixedly connected with the top of the corresponding first groove (2).

5. A chalk cover according to claim 1, characterized in that: the surface of the movable rod (14) is provided with a limiting spring (17), and two sides of the limiting spring (17) are fixedly connected with the limiting plate (16) and the fixing plate (13) respectively.

6. A chalk cover according to claim 1, characterized in that: the surface of the sleeve body (1) is fixedly connected with an anti-skid pad (20), and the anti-skid pad (20) is located on the position, close to the center, of the surface of the sleeve body (1).