CN211764566U

CN211764566U - Blackboard eraser capable of being rotated to adsorb dust

Info

Publication number: CN211764566U
Application number: CN202020321412.6U
Authority: CN
Inventors: 叶桂芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-10-27
Anticipated expiration: 2030-03-16

Abstract

The utility model discloses a student field, a can rotatory blackboard eraser that uses adsorbable dust, including blackboard eraser lid and the body of wiping, establish the half slot in the blackboard eraser lid, the fixed adsorption plate that sets up of half slot inner wall, the body is wiped in adsorption plate surface movable contact, blackboard eraser lid bottom fixed connection fixed block, the fixed block is located the body both sides of wiping, establish the through-hole in the fixed block, through-hole grafting pivot, be equipped with rotatory steel ball between pivot and the through-hole, the body is wiped in the fixed grafting of pivot, pivot fixed surface sets up the stopper, the fixed first supporting block that sets up in the fixed block outside, first supporting block is equipped with first recess, first recess bottom fixed connection spring one end, spring other end fixed connection second supporting shoe bottom, the second supporting shoe is equipped with the second recess, second recess and stopper clearance. The utility model discloses a solved daily blackboard eraser structure too simple, need incessant clearance chalk dust during the use, influenced the teacher and played the problem in the class break.

Description

Blackboard eraser capable of being rotated to adsorb dust

Technical Field

The utility model relates to a student field specifically is a can rotatory use blackboard eraser that can adsorb dust.

Background

The blackboard is the most traditional and important medium in classroom teaching, and information is transmitted and knowledge is displayed by writing on the blackboard with chalk, so that the blackboard plays a good auxiliary role in the process of teaching knowledge by teachers. The writing left on the blackboard by the chalk can be erased, so that the blackboard can be written and erased repeatedly for infinite times. In the traditional technology, a blackboard eraser for erasing blackboard writing is handheld, the erasing part is made of wool felt, and chalk materials attached to the surface of the blackboard are taken away through repeated friction. In the process, the situation that the chalk dust flies everywhere often appears, even if teachers and students are very careful, the situation cannot be avoided, the flying chalk dust can bring harm to the respiratory system of people, and serious even occupational diseases are formed. Accordingly, many patents relating to blackboard erasers have been made. For example, chinese patent application nos.: CN 200520083710.1A blackboard eraser, which comprises a blackboard eraser cover, a blackboard eraser, a brush and a mirror, wherein a cavity for holding chalk is arranged in the blackboard eraser, the brush is fixed on one side of the blackboard eraser, the blackboard eraser is movably connected with the blackboard eraser cover, and the mirror is fixed on the blackboard eraser cover. The utility model discloses a structure is too simple, needs incessant clearance chalk dust during the use, influences the mr and plays at class break.

Based on this, the utility model designs a can rotate the blackboard eraser that uses the adsorbable dust to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can rotate the blackboard eraser that uses adsorbable dust to the structure is too simple in solving above-mentioned background art, needs incessant clearance chalk dust during the use, influences the teacher and plays the problem at the lesson.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a can rotate and use blackboard eraser of adsorbable dust, includes blackboard eraser lid and the body of wiping, establish the half slot in the blackboard eraser lid, the fixed adsorption plate that sets up of half slot inner wall, the body is wiped in adsorption plate surface movable contact, blackboard eraser lid bottom fixed connection fixed block, the fixed block is located the body both sides of wiping, establish the through-hole in the fixed block, through-hole grafting pivot, be equipped with rotatory steel ball between pivot and the through-hole, the body is wiped in the fixed grafting of pivot, pivot fixed surface sets up the stopper, the fixed first supporting block that sets up in the fixed block outside, first supporting block is equipped with first recess, first recess bottom fixed connection spring one end, spring other end fixed connection second supporting block bottom, the second supporting block is equipped with the second recess, second recess and stopper clearance fit.

Preferably, the surface of the blackboard eraser cover is provided with a friction thread structure.

Preferably, the adsorption plate is made of activated carbon, and adsorption holes are uniformly formed in the surface of the adsorption plate.

Preferably, the fixed blocks are provided with two groups.

Preferably, the second supporting block is slidably connected with the first groove.

Compared with the prior art, the utility model has the advantages that: the utility model discloses an utilize the pivot to drive the mechanical structure who wipes the body, will wipe the body and cut apart the use, when using clean part, will be stained with the body rotation of wiping of chalk dust and adsorb the cleanness to the inslot, so recycle, the step of clearance chalk dust that mr did not stop in the daily teaching that has significantly reduced. Meanwhile, the friction thread structure is arranged on the blackboard eraser cover, so that the blackboard eraser can be conveniently held and prevented from sliding off.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic view of the blackboard eraser cover of the present invention;

FIG. 4 is a schematic structural view of the present invention A;

fig. 5 is a schematic structural diagram of the present invention B.

In the drawings, the components represented by the respective reference numerals are listed below:

1-blackboard eraser cover, 101-semicircular groove, 102-adsorption plate, 103-adsorption hole, 2-eraser body, 3-fixed block, 4-rotating shaft, 401-limiting block, 5-rotating steel ball, 6-through hole, 7-first supporting block, 701-first groove, 8-second supporting block, 801-second groove and 9-spring.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a can rotate blackboard eraser that uses adsorbable dust, including blackboard eraser lid 1 and wiping body 2, establish semicircular groove 101 in the blackboard eraser lid 1, the fixed adsorption plate 102 that sets up of semicircular groove 101 inner wall, adsorption plate 102 surface activity contact wiping body 2, blackboard eraser lid 1 bottom fixed connection fixed block 3, fixed block 3 is located wiping body 2 both sides, establish through-hole 6 in the fixed block 3, through-hole 6 grafting pivot 4, be equipped with rotatory steel ball 5 between pivot 4 and the through-hole 6, pivot 4 fixed grafting wiping body 2, pivot 4 fixed surface sets up stopper 401, fixed 3 outside of fixed block sets up first supporting block 7, first supporting block 7 is equipped with first recess 701, first recess 701 bottom fixed connection spring 9 one end, spring 9 other end fixed connection second supporting block 8 bottoms, second supporting block 8 is equipped with second recess 801, second recess 801 and stopper 401 clearance fit.

Wherein, the surface of the blackboard eraser cover 1 is provided with a friction thread structure, which is convenient for being held by hands to prevent slipping. The surface of the adsorption plate 102 is made of activated carbon, and the adsorption holes 103 are uniformly formed, so that one surface adhered with chalk dust is more effectively cleaned, and the chalk dust cleaning device is simple and practical. The fixed blocks 3 are provided with two groups, so that the rotating shaft 4 can be fixed conveniently. The second supporting block 8 is slidably connected with the first groove 701, so that when the storage is facilitated, the limitation on the limiting block 401 is removed, and the rotation of the rotating shaft 4 is realized.

One specific application of this embodiment is: when the blackboard eraser cover 1 is held by a hand, the blackboard eraser cover can be better held to prevent slipping due to the friction grain structure on the surface. When the chalk eraser is used, the second supporting block 8 is accommodated in the first groove 701 in the first supporting block 7 by pressing the second supporting block 8 to compress the spring 9, the limitation of the limiting block 401 is removed, the rotating shaft 4 can be rotated at the moment, the erasing surface of the eraser body 2 is replaced by rotating in a manner of being matched with the rotating steel ball 5 in the through hole 6, one surface with chalk dust is rotated to the semicircular groove 101 in the blackboard eraser cover 1, and the chalk dust can be adsorbed due to the fact that the activated carbon material adsorption plate 102 with the adsorption hole 103 is arranged in the semicircular groove 101, and the cleaning effect is achieved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a can rotate use blackboard eraser that can adsorb dust, includes blackboard eraser lid (1) and eraser body (2), its characterized in that: establish semicircular groove (101) in blackboard eraser lid (1), semicircular groove (101) inner wall is fixed to be set up adsorption plate (102), the body (2) is wiped in adsorption plate (102) surface activity contact, blackboard eraser lid (1) bottom fixed connection fixed block (3), fixed block (3) are located and wipe body (2) both sides, establish through-hole (6) in fixed block (3), through-hole (6) grafting pivot (4), be equipped with rotatory steel ball (5) between pivot (4) and through-hole (6), pivot (4) fixed grafting is wiped body (2), pivot (4) fixed surface sets up stopper (401), fixed block (3) outside is fixed to be set up first supporting block (7), first supporting block (7) are equipped with first recess (701), first recess (701) bottom fixed connection spring (9) one end, the other end of the spring (9) is fixedly connected with the bottom of a second supporting block (8), a second groove (801) is formed in the second supporting block (8), and the second groove (801) is movably matched with the limiting block (401).

2. The rotatable dust-adsorbing blackboard eraser as claimed in claim 1, wherein: the surface of the blackboard eraser cover (1) is provided with a friction thread structure.

3. The rotatable dust-adsorbing blackboard eraser as claimed in claim 1, wherein: the adsorption plate (102) is made of activated carbon, and adsorption holes (103) are uniformly formed in the surface of the adsorption plate.

4. The rotatable dust-adsorbing blackboard eraser as claimed in claim 1, wherein: two groups of fixing blocks (3) are arranged.

5. The rotatable dust-adsorbing blackboard eraser as claimed in claim 1, wherein: the second supporting block (8) is connected with the first groove (701) in a sliding mode.