CN203666205U

CN203666205U - Efficient eraser

Info

Publication number: CN203666205U
Application number: CN201320857410.9U
Authority: CN
Inventors: 曲彦霖
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-24
Filing date: 2013-12-24
Publication date: 2014-06-25
Anticipated expiration: 2023-12-24

Abstract

The utility model belongs to the field of teaching appliances, in particular to an efficient eraser which comprises an eraser layer, a wet sponge layer, a water bag, a dry sponge layer, a fixing board A, a fixing board B, a fixing cover A, a fixing cover B and a fixing cover C. The eraser layer is fixed on one face of the fixing board A. The dry sponge layer is fixed on the other face of the fixing board A. a groove B is formed in the fixing board B. The wet sponge layer is fixed on one face of the fixing board B, and the water bag is arranged on the other face of the fixing board B. A press board is arranged in the fixing cover C, and a groove is formed in the fixing board C. A protruding block is arranged on the press board and penetrates in the groove. The wet sponge layer is arranged in the eraser. The press board is extruded to enable water in the water bag to be extruded to the wet sponge layer and wipe writing in positions hard to clean. After erasing is completed, the dry sponge layer on the other face of the fixing board A is used for wiping a backboard, and the blackboard can be dry in short time after redundant water is absorbed by the dry sponge layer, so that subsequent teaching is not influenced, and the purposes of cleaning wiping and high efficiency are realized.

Description

A kind of efficient black blackboard eraser

Technical field

The utility model belongs to teaching aid field, relates in particular to a kind of efficient black blackboard eraser.

Technical background

Blackboard eraser is a kind of very important educational aid, it can be blackboard Reusability, there is easy to operate feature, but along with the wearing and tearing of blackboard eraser and blackboard, that some word is not easy to be wiped free of, make water can be easy to dispose, but after using rag that blackboard eraser is clean, rag is easy to be left about everywhere, of long duration, rag is not that loss is exactly contaminated shapeless, the expense that replacing rag needs is higher, also be a kind of waste of resource simultaneously, and blackboard after use scrub water is not easy to become dry, need to wait the longer time just can reuse, be easy to the teacher's who delays lower class teaching.

Summary of the invention

The utility model provides a kind of reasonable in design for solving the technical problem existing in known technology, is difficult for losing, shortening drying time and cost-effective a kind of efficient black blackboard eraser.

The technical scheme that the utility model is taked for the technical problem existing in solution known technology is:

A kind of efficient black blackboard eraser, comprise blackboard eraser layer, wet sponge layer, water pocket, characterized by further comprising dry spongy layer, fixed plate A, fixed head B, fixed cap A, fixed cap B and fixed cap C, fixed black blackboard eraser layer in the one side of described fixed plate A, another side is fixed dry spongy layer; Described fixed head B is provided with groove B; The fixing wet sponge layer of one side of described fixed head B, another side is provided with water pocket; Described water pocket is provided with water filling port and delivery port; Described delivery port contacts with wet sponge layer through groove B; In fixed cap C, be provided with pressing plate, middle part is provided with groove; Described pressing plate is provided with projection; Described projection is in groove; Described fixed cap A and described fixed plate A, fixed plate A and fixed cap B, fixed cap B and fixed head B, fixed head B and fixed cap C are and removably connect.

Described fixed cap A is and is threaded with fixed cap C with fixed head B, fixed head B with fixed cap B, fixed cap B with described fixed plate A, fixed plate A.

Described water pocket is that elastomeric material is made.

The advantage the utlity model has and beneficial effect are: can realize common blackboard eraser and remove by blackboard eraser layer is set, and the fixed cap A that has been threaded thereon, after wiping, cover fixed cap A, beat gently, chalk powder is tear-away, then outwell, easy to operate; Wet sponge layer is set in blackboard eraser, and by extruding pressing plate, water in water pocket is extruded on wet sponge layer, the writing of the position to more difficult removing is wiped, and after wiping, by the dry spongy layer that is arranged on fixed plate A another side, blackboard is cleaned, after unnecessary moisture is absorbed by dry spongy layer, make blackboard within the shorter time, become dry, do not affect giving lessons of next class teacher, realization is wiped totally, the time is efficient.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further explained to explanation.

In figure 1, blackboard eraser layer, 2, wet sponge layer, 3, water pocket, 4, dry spongy layer, 5, fixed plate A, 6, fixed head B, 7, fixed cap A, 8, fixed cap B, 9, fixed cap C, 10, groove B, 11, water filling port, 12, delivery port, 13, pressing plate, 14, groove, 15, projection.

As shown in Figure 1, a kind of efficient black blackboard eraser provided by the utility model, comprise blackboard eraser layer 1, wet sponge layer 2, water pocket 3, dry spongy layer 4, fixed plate A 5, fixed head B6, fixed cap A7, fixed cap B8 and fixed cap C9, in the one side of fixed plate A 5, be fixed with blackboard eraser layer 1, another side is fixed dry spongy layer 4; Fixed head B6 is provided with groove B10; The fixing wet sponge layer 2 of one side of fixed head B6, another side is provided with water pocket 3; Water pocket 3 is provided with water filling port 11 and delivery port 12; Delivery port 12 contacts with wet sponge layer 2 through groove B10; In fixed cap C9, be provided with pressing plate 13, middle part is provided with groove 14; Pressing plate 13 is provided with projection 15; Projection 15 is in groove 14; Fixed cap A7 is and is threaded with fixed cap C9 with fixed head B6, fixed head B6 with fixed cap B8, fixed cap B8 with fixed plate A 5, fixed plate A 5, and water pocket 3 is made for elastomeric material.

Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variation and improvement etc. of doing according to the utility model application range, within all should belonging to patent covering scope of the present utility model.

Claims

1. an efficient black blackboard eraser, comprise blackboard eraser layer (1), wet sponge layer (2), water pocket (3), characterized by further comprising dry spongy layer (4), fixed plate A (5), fixed head B(6), fixed cap A(7), fixed cap B(8) and fixed cap C(9), in the one side of described fixed plate A (5), be fixed with blackboard eraser layer (1), another side is fixed dry spongy layer (4); Described fixed head B(6) be provided with groove B(10); Described fixed head B(6) the fixing wet sponge layer (2) of one side, another side is provided with water pocket (3); Described water pocket (3) is provided with water filling port (11) and delivery port (12); Described delivery port (12) is through groove B(10) contact with wet sponge layer (2); Fixed cap C(9) in be provided with pressing plate (13), middle part is provided with groove (14); Described pressing plate (13) is provided with projection (15); Described projection (15) is in groove (14); Described fixed cap A(7) with described fixed plate A (5), fixed plate A (5) and fixed cap B(8), fixed cap B(8) with fixed head B(6), fixed head B(6) with fixed cap C(9) be and removably connect.

2. a kind of efficient black blackboard eraser according to claim 1, is characterized in that described fixed cap A(7) with described fixed plate A (5), fixed plate A (5) and fixed cap B(8), fixed cap B(8) with fixed head B(6), fixed head B(6) with fixed cap C(9) be and be threaded.

3. a kind of efficient black blackboard eraser according to claim 1, is characterized in that described water pocket (3) makes for elastomeric material.