CN211730851U

CN211730851U - Replaceable and washable blackboard eraser

Info

Publication number: CN211730851U
Application number: CN201921095260.6U
Authority: CN
Inventors: 贾彩静; 韩炬; 韩兵兵
Original assignee: North China University of Science and Technology
Current assignee: North China University of Science and Technology
Priority date: 2019-07-14
Filing date: 2019-07-14
Publication date: 2020-10-23
Anticipated expiration: 2029-07-14

Abstract

A replaceable and washable blackboard eraser comprises an eraser body and a carrier, wherein the eraser body consists of dust wiping cloth and sponge; the carrier comprises a carrier main part and a latch. The carrier main part is provided with a groove for loading the wiping body, the other side of the groove is provided with a protrusion, the two sides of the protrusion are provided with holes for connecting clamping teeth, the edges of the two sides of the groove are provided with raised clamping pieces which correspond to the clamping teeth and are used for clamping dust wiping cloth, and the clamping teeth can rotate. The utility model discloses simple structure, convenient operation, the good reliability, the problem of cleaning that exists when having solved and having cleaned the blackboard unclean and be difficult for changing and washing.

Description

Replaceable and washable blackboard eraser

Technical Field

The utility model relates to a formula blackboard eraser is washed in interchangeable belongs to the teaching articles for use field.

Background

At present, chalk dust of blackboard erasers used by most schools in teaching is attached to dust wiping cloth of the blackboard erasers in the using process, so that the blackboard erasers cannot be wiped cleanly in the using process, and the dust wiping cloth is not easy to detach and cannot be replaced and washed at any time.

Disclosure of Invention

In order to solve the inconvenience of the blackboard eraser during use, the utility model provides a formula blackboard eraser is washed in interchangeable, this blackboard eraser can be changed at any time and washed, guarantees that the dust cloth of blackboard eraser is clean to effectively clean the blackboard.

The utility model adopts the technical proposal that: the blackboard eraser consists of an eraser body (1) and a carrier (2). The wiping body (1) consists of a dust wiping cloth (1.1) and a sponge (1.2); the carrier (2) comprises a carrier main part (2.1) and clamping teeth (2.2), (2.3), (2.4) (2.5). The carrier main part (2.1) is provided with a groove for loading the wiping body (1), the other side of the groove is provided with a protrusion, the two sides of the protrusion are provided with holes for connecting the latch, the edges of the two sides of the groove are provided with protruding clamping pieces which correspond to the latch and are used for clamping dust wiping cloth, and the latch can rotate.

The utility model discloses simple structure, convenient operation, the good reliability, the problem of cleaning that exists when having solved and having cleaned the blackboard unclean and be difficult for changing and washing.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure of a replaceable and washable blackboard eraser.

Fig. 2 is a schematic structural view of a replaceable and washable blackboard eraser carrier according to the present invention.

Fig. 3 is a schematic structural view of a main part of a replaceable and washable blackboard eraser carrier.

Fig. 4 is a schematic view of a latch structure of a replaceable and washable blackboard eraser.

Fig. 5 is a schematic view of a groove structure of a replaceable and washable blackboard eraser carrier according to the present invention.

Fig. 6 is an explosion structure diagram of a replaceable and washable blackboard eraser.

In the figure, (1) a wiping body, (2) a carrier, (1.1) a dust wiping cloth, (1.2) a sponge, (2.1) a carrier main part, (2.2) a first latch, (2.3) a second latch, (2.4) a third latch, (2.5) a fourth latch, (2.1.1) a thick transverse plate, (2.1.2) a first card, (2.1.3) a second card, (2.1.4) a first protrusion, (2.1.5) a second protrusion, (2.1.6) a third protrusion, (2.5.1) a first cylindrical plug, (2.5.2) a second cylindrical plug, (2.5.3) a latch, (2.5.4) a side wall, (2.1.1) a small groove, (2.1.1.2) a groove, (2.1.2.1) a clamping groove, (2.1.2.2) a shallow groove, (2.1.4.1) a first cylindrical hole, (2.1.5.1) a second hole.

Detailed Description

The carrier main part (2.1) is provided with a thick transverse plate (2.1.1), and a first clamping piece (2.1.2), a second clamping piece (2.1.3), a first bulge (2.1.4), a second bulge (2.1.5) and a third bulge (2.1.6) are arranged on two sides above the thick transverse plate (2.1.1); the upper part of the thick transverse plate (2.1.1) is provided with a small groove (2.1.1.1), and the lower part is provided with a groove (2.1.1.2); a clamping groove (2.1.2.1) and a shallow groove (2.1.2.2) are arranged on the first card (2.1.2); first protruding (2.1.4) go up to open and to have first cylinder hole (2.1.4.1), second protruding (2.1.5) go up to open and to have second cylinder hole (2.1.5.1), two protruding both sides respectively open and to have two cylinder holes, draw-in groove (2.1.2.1) and shallow slot (2.1.2.2) and microgroove (2.1.1.1) one-to-one, first card (2.1.2), second card (2.1.3) all incline certain angle to the inboard.

The fourth latch (2.5) is provided with a first cylindrical plug (2.5.1), a second cylindrical plug (2.5.2), a latch (2.5.3) and a side wall (2.5.4).

When in use, the first cylindrical plug (2.5.1) on the fourth latch (2.5) is inserted into the first cylindrical hole (2.1.4.1) of the first bulge (2.1.4), the first latch (2.2) and the fourth latch (2.5) are assembled on the first bulge (2.1.4), and the second latch (2.3) and the third latch (2.4) are assembled on the second bulge (2.1.5). The diameter of first cylinder plug (2.5.1) will be less than first cylinder hole (2.1.4.1), first latch (2.2) after the assembly is accomplished, second latch (2.3), third latch (2.4), fourth latch (2.5) can overturn around first arch (2.1.4), second arch (2.1.5), when fourth latch (2.5) is closed down, lateral wall (2.5.4) will leave certain distance with second card (2.1.3), other latches are the same reason. Then put into recess (2.1.1.2) sponge (1.2), cover dust cloth (1.1) to sponge (1.2) outside again, turn over dust cloth (1.1) and turn over first card (2.1.2), second card (2.1.3) inboard, next card, compress tightly dust cloth (1.1) under first latch (2.2), second latch (2.3), third latch (2.4), fourth latch (2.5) upset, latch (2.5.3) and draw-in groove one-to-one, turn up the latch alright tear dust cloth (1.1) down and change the washing.

Claims

1. A replaceable and washable blackboard eraser is composed of an eraser body (1) and a carrier (2), and is characterized in that: the wiping body (1) consists of dust wiping cloth (1.1) and sponge (1.2), the carrier (2) comprises two parts of a carrier auxiliary part formed by a carrier main part (2.1), a first latch (2.2), a second latch (2.3), a third latch (2.4) and a fourth latch (2.5), the carrier main part (2.1) is provided with a thick transverse plate (2.1.1), and the first card (2.1.2), the second card (2.1.3) and first bulges (2.1.4), second bulges (2.1.5) and third bulges (2.1.6) on two sides above the thick transverse plate (2.1.1), the upper part of the thick transverse plate (2.1.1) is provided with small grooves (2.1.1.1), the lower part is provided with grooves (2.1.1.2), the first card (2.1.2) is provided with shallow grooves (2.1.2.1) and shallow grooves (2.1.2.2), the first bulges (2.1.1) are provided with two corresponding holes (39595), the second bulges (2.1.5) are provided with two corresponding cylindrical holes (39 2.1.2.2) and two cylindrical holes (39595), first card (2.1.2), second card (2.1.3) all incline certain angle to the inboard, are equipped with first cylinder plug (2.5.1), second cylinder plug (2.2.2) and calorie tooth (2.5.3) and lateral wall (2.5.4) on fourth latch (2.5).