CN216153465U - Multilayer blackboard eraser with dust not easy to fly upwards - Google Patents

Abstract

The utility model discloses a multi-layer blackboard eraser with dust not easy to fly, which comprises a blackboard eraser shell main body, wherein first through grooves are formed in two sides of the blackboard eraser shell main body, movable blocks are movably arranged in the first through grooves, second through grooves are formed in the movable blocks, connecting columns are arranged in the second through grooves through bearings, a roller is fixedly arranged on one side of each connecting column, and wiping cloth is wound and arranged on the outer side of the roller; this multilayer blackboard eraser that dust is difficult for flying upward utilizes the characteristic of fixed knot and fixed block through setting up first logical groove, movable block, the logical groove of second, spliced pole, cylinder, wiping cloth, fixed knot, fixed block, second spout, second slider and dead lever, has made things convenient for the change of staff to wiping cloth, makes the wiping effect of wiping cloth improve, has effectually prevented raising of chalk dust to the practicality of structure has been increased, has promoted staff's use and has experienced.

Description

Multilayer blackboard eraser with dust not easy to fly upwards

Technical Field

The utility model relates to the technical field of blackboard eraser, in particular to a multilayer blackboard eraser which is not easy to fly dust.

Background

The blackboard is an appliance used for writing demonstration in the education industry, generally, a teaching board is placed in a classroom or a meeting room, contents are written by chalk or a water-based pen, the teaching board plays a role in explaining and demonstrating, the blackboard eraser is required to be used after writing, the blackboard eraser is a teaching tool and is used for erasing and removing chalk marks on the blackboard, and the teaching tool is a good helper for cleaning teaching marks.

The prior art has the following defects or problems:

1. most of the existing blackboard wipers do not have the function of replacing the wiping surface, the wiping surface is flat due to the fact that the wiping surface cannot be replaced, a large amount of chalk dust can be generated in use, the adsorption capacity is reduced, the chalk dust is raised, and the body health of a user is inconvenient to use, so that the workload of workers is increased;

2. the chalk dust that current blackboard eraser was cleaning the face is patted through blackboard eraser and wall or blackboard and is got rid of the chalk dust mostly when clearing up the chalk dust of cleaning, because the chalk dust that can't make on the blackboard eraser carries out effectual clearance and accomodates, leads to very loaded down with trivial details messenger's chalk dust to raise when clearing up the deposition to the structural cleanliness nature has been reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multi-layer blackboard eraser which is not easy to fly dust aiming at the defects of the prior art so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a multilayer blackboard eraser that dust is difficult for flying upward, includes blackboard eraser shell main part, first logical groove has all been seted up to the both sides of blackboard eraser shell main part, the inside movable mounting that all leads to the groove of first logical groove has the movable block, the inside that the movable block has all been seted up the second and has been led to the groove, the spliced pole is all installed through the bearing to the inside that the second led to the groove, one side fixed mounting of spliced pole has the cylinder, the outside winding of cylinder is installed and is wiped cloth, wipe cloth is fracture shape and quantity is five layers, wipe cloth's one end all fixed mounting have fixed knot, wipe cloth's the other end all fixed mounting have the fixed block, fixed knot all inserts the inside of installing to the fixed block, the top of blackboard eraser shell main part inner wall is provided with hinders the grey board, the bottom fixed mounting of blackboard eraser shell main part has the fixed box, first spout has been seted up to the one end of fixed box inner wall, all slidable mounting has first slider in the inside of first spout, the one end of first slider all extends to the inside of fixed box, the one end fixed mounting of first slider has the deposition box, first cavity has all been seted up to the bottom in first logical groove, the second spout has all been seted up to the both sides of blackboard eraser shell main part, all slidable mounting has the second slider in the inside of second spout, one side of second slider all is provided with the dead lever, the both ends of spliced pole all are provided with the fixed slot, the second cavity has all been seted up to the inside of second slider.

As a preferred technical solution of the present invention, one end of the first slider is fixedly mounted with a first magnet, and the inner wall of the first chute is fixedly mounted with a second magnet.

As a preferred technical scheme of the present invention, first springs are fixedly installed inside the first cavities, connecting rods are fixedly installed at one ends of the first springs, and one ends of the connecting rods are fixedly connected with the movable block.

As a preferred technical scheme of the present invention, the second cavity is internally and fixedly provided with a second spring, one side of the second spring is fixedly provided with a limiting post, one side of the second chute is uniformly provided with a limiting hole, and one side of the limiting post is inserted into and mounted in the limiting hole.

Compared with the prior art, the utility model provides the multilayer blackboard eraser with less possibility of flying dust, which has the following beneficial effects:

1. according to the multilayer blackboard eraser with the dust not prone to flying, due to the fact that the first through groove, the movable block, the second through groove, the connecting column, the roller, the wiping cloth, the fixing buckle, the fixing block, the second sliding groove, the second sliding block and the fixing rod are arranged, and the characteristics of the fixing buckle and the fixing block are utilized, workers can conveniently replace the wiping cloth, the wiping effect of the wiping cloth is improved, the chalk dust is effectively prevented from flying, the practicability of the structure is improved, and the use experience of the workers is improved;

2. this multilayer blackboard eraser that dust is difficult for flying upward through setting up hinder grey board, fixed box, first spout, first slider and deposition box, utilizes to hinder grey board and will wipe the ash on the cloth and scrape and get, utilizes the deposition box to collect the chalk dust, has made things convenient for the staff to collect the processing to the chalk dust to the convenience of structure has been increased.

Drawings

FIG. 1 is a schematic sectional elevation view of the structure of the present invention;

FIG. 2 is a schematic side sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of a portion of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B according to the present invention;

FIG. 5 is an enlarged view of a portion of the structure shown at C in FIG. 1;

fig. 6 is a perspective view of the present invention.

In the figure: 1. a blackboard eraser housing body; 2. a first through groove; 3. a movable block; 4. a second through groove; 5. connecting columns; 6. a drum; 7. wiping cloth; 71. a fixing buckle; 72. a fixed block; 8. an ash blocking plate; 9. a fixing box; 91. a first chute; 92. a first slider; 93. a first magnet; 94. a second magnet; 95. an ash accumulation box; 10. a first cavity; 101. a first spring; 102. a connecting rod; 11. a second chute; 12. a second slider; 13. fixing the rod; 14. fixing grooves; 15. a second cavity; 151. a second spring; 152. a limiting column; 153. and a limiting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, in the present embodiment: a multi-layer blackboard eraser with dust not prone to flying comprises a blackboard eraser shell main body 1, first through grooves 2 are formed in two sides of the blackboard eraser shell main body 1, movable blocks 3 are movably mounted inside the first through grooves 2, second through grooves 4 are formed inside the movable blocks 3, connecting columns 5 are mounted inside the second through grooves 4 through bearings, a roller 6 is fixedly mounted on one side of each connecting column 5, wiping cloths 7 are wound on the outer side of the roller 6, the wiping cloths 7 are broken and five in number, fixed buckles 71 are fixedly mounted at one ends of the wiping cloths 7, fixed blocks 72 are fixedly mounted at the other ends of the wiping cloths 7, the fixed buckles 71 are inserted into the fixed blocks 72, an ash blocking plate 8 is arranged at the top end of the inner wall of the blackboard eraser shell main body 1, a fixed box 9 is fixedly mounted at the bottom end of the blackboard eraser shell main body 1, a first chute 91 is formed in one end of the inner wall of the fixed box 9, all slidable mounting in the inside of first spout 91 has first slider 92, the one end of first slider 92 all extends to the inside of fixed box 9, the one end fixed mounting of first slider 92 has deposition box 95, first cavity 10 has all been seted up to the bottom that leads to groove 2 first, second spout 11 has all been seted up to the both sides of blackboard eraser shell main body 1, slidable mounting all has second slider 12 in the inside of second spout 11, one side of second slider 12 all is provided with dead lever 13, the both ends of spliced pole 5 all are provided with fixed slot 14, second cavity 15 has all been seted up to the inside of second slider 12.

In this embodiment, one end of the first slider 92 is fixedly installed with a first magnet 93, the inner wall of the first chute 91 is fixedly installed with a second magnet 94, and the first magnet 93 and the second magnet 94 are utilized to firmly fix the dust box 95 inside the dust box 95 to prevent falling off; the first springs 101 are fixedly arranged inside the first cavities 10, one ends of the first springs 101 are fixedly provided with connecting rods 102, one ends of the connecting rods 102 are fixedly connected with the movable block 3, and the surfaces of the wiping cloths 7 are fully contacted with the ash blocking plate 8 by utilizing the inertia of the first springs 101; all fixed mounting in the inside of second cavity 15 has second spring 151, and all fixed mounting in one side of second spring 151 has spacing post 152, and spacing hole 153 has evenly been seted up to one side army of second spout 11, and the inside of installing to spacing hole 153 is all inserted to one side of spacing post 152, through the inertia of second spring 151 with the firm inside at fixed slot 14 of fixing pole 13, has prevented that the rotation of cylinder 6 from leading to wiping the effect and reducing.

The working principle and the using process of the utility model are as follows: when the blackboard eraser is used by a worker, the fixed rod 13 is inserted into the fixed groove 14 by the worker, so that the surface of the wiping cloth 7 is fully contacted with a blackboard, meanwhile, chalk dust enters the blackboard eraser shell body 1 by the characteristic of the blackboard eraser shell body 1, after the wiping by the worker is finished, the fixed rod 13 is pulled upwards by the worker, so that the roller 6 rotates, the surface of the wiping cloth 7 is contacted with the dust blocking plate 8, the chalk dust on the wiping cloth 7 enters the dust box 95, and meanwhile, the wiping cloth 7 can be replaced by another surface for wiping by the rotation of the roller 6; when the abrasion degree of the wiping cloth 7 is serious, the wiping cloth 7 can be taken down by using the fixing buckle 71 which is worked outwards by a worker, and the next layer can be continuously used; when the chalk dust in the dust box 95 is full, the dust box 95 is pulled outward by a worker, and the dust box 95 is taken out of the fixing box 9 and cleaned.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a multilayer blackboard eraser that dust is difficult for flying upward which characterized in that: including blackboard eraser shell main part (1), first logical groove (2) have all been seted up to the both sides of blackboard eraser shell main part (1), the inside movable mounting that all leads to groove (2) has movable block (3), the inside of movable block (3) has all been seted up the second and has been led to groove (4), spliced pole (5) are all installed through the bearing to the inside that the second led to groove (4), one side fixed mounting of spliced pole (5) has cylinder (6), the outside winding of cylinder (6) is installed and is wiped cloth (7), wipe cloth (7) are fracture shape and quantity five layers, the one end of wiping cloth (7) is fixed mounting all has fixed knot (71), the other end of wiping cloth (7) is fixed mounting all has fixed block (72), fixed knot (71) all insert the inside of installing to fixed block (72), the top of blackboard eraser shell main part (1) inner wall is provided with hinders grey board (8), a fixed box (9) is fixedly arranged at the bottom end of the blackboard eraser shell main body (1), one end of the inner wall of the fixed box (9) is provided with a first sliding chute (91), the first sliding chute (91) is internally provided with a first sliding block (92) in a sliding way, one end of the first sliding block (92) extends into the fixed box (9), one end of the first sliding block (92) is fixedly provided with an ash deposition box (95), the bottom end of the first through groove (2) is provided with a first cavity (10), the two sides of the blackboard eraser shell main body (1) are provided with second sliding grooves (11), a second sliding block (12) is arranged inside the second sliding chute (11) in a sliding way, one side of the second sliding block (12) is provided with a fixed rod (13), two ends of the connecting column (5) are provided with fixed grooves (14), the second sliding block (12) is internally provided with a second cavity (15).

2. The multi-layer blackboard eraser not prone to dust flying as claimed in claim 1, wherein: one end of the first sliding block (92) is fixedly provided with a first magnet (93), and the inner wall of the first sliding groove (91) is fixedly provided with a second magnet (94).

3. The multi-layer blackboard eraser not prone to dust flying as claimed in claim 1, wherein: the all fixed mounting in inside of first cavity (10) has first spring (101), the all fixed mounting of one end of first spring (101) has connecting rod (102), the one end of connecting rod (102) all with movable block (3) fixed connection.

4. The multi-layer blackboard eraser not prone to dust flying as claimed in claim 1, wherein: the utility model discloses a spacing fixed mounting of first cavity (15) is including first spring (151), the inside of second cavity (15) all fixed mounting have second spring (151), the equal fixed mounting in one side of second spring (151) has spacing post (152), spacing hole (153) have evenly been seted up to one side army of second spout (11), the inside of installing to spacing hole (153) is all inserted to one side of spacing post (152).

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