CN2695252Y - Dust-collecting eraser - Google Patents

Abstract

Dust-proof blackboard eraser, classified according to the International Patent Classification (IPC), belongs to the Department of Operations and Transportation, Printing Division, Writing or Drawing Supplies; Writing or Drawing Auxiliary Supplies Subclass, Cleaning Device Group with Chalk Dust Suction Device Technical Field. The purpose of the utility model is to solve the technical problems that the dust will not fly randomly when the blackboard is wiped, the dust-proof net can prevent the mesh sheet from being blocked, and the water injection is convenient. It is mainly composed of a handle, a water box, a mesh sheet, a sponge, gauze, a filter screen, and a water injection port cover. Its characteristics are: the lower edge of the water box is pasted and connected to the edge of the mesh sheet, the overall position of the mesh sheet is directly connected to the overall position of the filter net, the overall position of the gauze is wrapped and connected to the overall outer position of the sponge, and the overall position of the sponge The position on the upper surface is pasted and connected to the position on the lower surface of the filter screen, which has wide applications, is simple to manufacture, low in cost, convenient to use, and easy to popularize.

Description

dustproof blackboard eraser

(1) Technical field:

The utility model relates to a dust-proof blackboard eraser, which belongs to the Department of Operations and Transportation, Printing Division, writing or drawing utensils, office supplies, writing or drawing supplies, and writing or drawing auxiliary supplies according to the International Patent Classification (IPC). , a large group of cleaning devices for blackboards or slates, and a technical field of cleaning device groups with chalk dust suction devices.

(two) background technology:

At present, the existing and ever existing large groups of cleaning devices about blackboards or slates, the technology of cleaning device groups with suction chalk dust devices have all done very effective efforts to the needs of dust-proof blackboard erasers, and have also designed many Excellent technical solution. As announced by China Patent Office in 1996, declared by Wang Juncheng, the authorized announcement number is CN22359O5Y, and the Chinese patent number (ZL) is: the utility model patent title of No. 95225177.9 is the utility model patent of "dust-absorbing blackboard eraser". Technical solutions. The large group of cleaning device of blackboard or slate, the technical aspect of the cleaning device group that has suction chalk dust device is an example very valuable invention, and it has solved the technical problem of blackboard eraser dust suction effectively. But there are still deficiencies, it is also difficult to solve the dust no longer flying randomly when wiping the blackboard, the dust-proof net prevents the mesh sheet from being blocked, and the technical problems of water injection are convenient.

(3) Contents of the invention:

The purpose of the utility model is to provide a dustproof blackboard eraser. To solve the technical problems of dust no longer flying randomly when wiping the blackboard, dust-proof nets to prevent mesh sheets from clogging, and water injection to be convenient.

The new technical scheme adopted for the above-mentioned technical problems to be solved by the utility model is realized in this way: the dust-proof blackboard eraser of the utility model is mainly composed of: handle, water box, mesh sheet, sponge, gauze, filter screen, water injection port Cover composition. Its main parts handle, gauze, filter screen, water injection port cover are selected for use by the market. Its water box is in the shape of a rectangular box, made of plastic and processed by pressing. Its mesh sheet is in the shape of evenly distributed small holes on the rectangular sheet, which is made of plastic and manufactured through special molding. Its sponge is in the shape of a cuboid block, made of chemical materials added with special materials, and manufactured through special processing.

In terms of shape, structure and combination, the dust-proof blackboard eraser of the present utility model shares the necessary technical features with the closest prior art: the lower end of the handle is pasted and connected to the middle position of the upper surface of the water box, and the upper surface of the water box One side of the surface is directly installed on the overall position of the water injection port cover, combined into a combined structure with a handle shape on the upper part of the box, and its function is to play the role of container and support. In terms of shape, structure and combination, the dust-proof blackboard eraser of the present utility model is different from the closest prior art in that the lower edge of the water box is pasted and connected to the edge of the mesh sheet, and the edge of the mesh sheet The overall position is directly connected to the overall position of the filter net, combined with a layered connection structure, the function is to play the role of water seepage and dust prevention. The overall position of the gauze is wrapped and connected to the overall outer position of the sponge, and the upper surface of the sponge is pasted and connected to the lower surface of the filter screen, and combined into a combined structure with a cloth wrapped shape of the sponge block, the function is to play a wear-resistant role. In this way, dust-proof blackboard eraser of the present utility model solves the purpose of dust no longer flying randomly when wiping the blackboard, dust-proof net prevents mesh sheets from blocking, and the technical problems of water injection are convenient.

The beneficial effects of the dust-proof blackboard eraser of the utility model are: the utility model solves the technical problems that the dust no longer flies randomly when wiping the blackboard, the dust-proof net prevents the mesh sheets from being blocked, and the technical problems of convenient water injection are adopted. There are two advantages and improvements compared to the technology of the cleaning device group of the blackboard or slate that has the cleaning device group of the chalk dust suction device:

First, because the lower edge position of the water box is designed to be pasted and connected to the edge position of the mesh sheet in the technical scheme of the dust-proof blackboard eraser of the present utility model, the overall position of the mesh sheet is directly connected to the overall position of the filter screen, combined The layered connection structure makes it easier to solve the technical problems of water seepage and dust prevention.

Second, because the overall position of the gauze is designed to be wrapped and connected to the overall outer position of the sponge in the technical solution of the dust-proof blackboard eraser of the present utility model, the upper surface position of the sponge is pasted and connected to the lower surface position of the filter screen, and is combined into a sponge block There is a composite structure wrapped in cloth, so it is easier to solve the technical problem of wear resistance.

(4) Description of drawings:

Accompanying drawing provides the structural representation of dust-proof blackboard eraser of the present utility model:

Fig. 1: is the overall cross-sectional structural schematic diagram of the dust-proof blackboard eraser of the present utility model:

Explanation of the labels of the components in the schematic diagram:

1 handle 2 water box 3 mesh piece 4 sponge

5 Gauze 6 Filter 7 Water inlet cover

(5) Specific implementation methods:

Below in conjunction with the accompanying drawings, the dust-proof blackboard eraser of the present utility model is further explained in terms of the preferred mode of the technical solution adopted for the technical problems of dust-proof blackboard eraser of the present invention for solving the dust no longer flying randomly when wiping the blackboard, the dust-proof net preventing the mesh sheet from clogging, and the technical problems of convenient water injection. :

Its static structure: please refer to the accompanying drawings: as shown in the figure, the dust-proof blackboard eraser of the present utility model is mainly composed of a handle 1, a water box 2, a mesh sheet 3, a sponge 4, gauze 5, a filter screen 6, and a water injection port cover 7 composition. Its main parts handle 1, gauze 5, filter screen 6, water injection port cover 7 are selected for use by the market. Its water box 2 is rectangular box shape, is material with plastics, is manufactured through pressing. Its mesh sheet 3 is the shape of evenly distributed small holes on the rectangular sheet, and is made of plastics through special molding. Its sponge 4 is in the shape of a cuboid block, and is manufactured through special processing with chemical materials added with special materials.

In terms of shape, structure and combination, the dust-proof blackboard eraser of the present utility model shares the necessary technical features with the closest prior art: the lower end of the handle 1 is pasted and connected to the middle of the upper surface of the water box 2, and the water box One side of the upper surface of 2 is directly installed on the overall position of the water filling port cover 7, and is combined into a combined structure with a handle shape on the top of the box. The function is to play the role of container and support. In terms of shape, structure and combination, the dust-proof blackboard eraser of the present utility model is different from the closest prior art in that the lower edge of the water box 2 is pasted and connected to the edge of the mesh sheet 3, and the mesh The overall position of the sheet 3 is directly connected to the overall position of the filter screen 6, combined with a layered connection structure, the function is to play the role of water seepage and dustproof. The overall position of the gauze 5 is wrapped and connected to the overall outer position of the sponge 4, and the upper surface of the sponge 4 is pasted and connected to the lower surface of the filter screen 6 to form a combined structure of a sponge block with a cloth-wrapped shape. The function is wear-resistant effect.

The dynamic structural relationship of the utility type dust-proof blackboard eraser is further elaborated below by using the method: in use, when the blackboard needs to be wiped, according to the physical principle, at first the water in the water box 2 seeps out from the mesh sheet 3, Then sponge 4 is moistened, then hold handle 1 and wipe blackboard again, thereby finish wiping blackboard dust and can not fly randomly, and filter screen prevents the task of mesh sheet from blocking.

In use, when needing to inject water into the water box, according to the physical principle, first open the water injection port cover 7, then inject water into the water box 2, and then close the cover tightly, thereby completing the task of convenient water injection. In this way, dust-proof blackboard eraser of the present utility model solves the purpose of dust no longer flying randomly when wiping the blackboard, dust-proof net prevents mesh sheets from blocking, and the technical problems of water injection are convenient.

The best plan to realize the utility model is to use plastic as material, utilize the basic equipment of the stationery manufacturing factory, and adopt mass production to supply the needs of the education circle, so that the dust-proof blackboard eraser of the utility model can be better realized practical and economic value.

Claims (2)

1. dust-proof blackboard eraser, it is to be made of handle (1), water box (2), mesh strip (3), sponge (4), gauze (5), screen pack (6), water filling port lid (7), the lower end position of its handle (1) is pasted the upper surface centre position that is connected water box (2), the position, upper surface one side of water box (2) is directly installed on the integral position of water filling port lid (7), it is characterized in that: the marginal position that is connected mesh strip (3) is pasted in the lower limb position of water box (2), and the integral position of mesh strip (3) directly is connected the integral position of screen pack (6).

2. dust-proof blackboard eraser according to claim 1 is characterized in that the integral position parcel of gauze (5) is connected the whole outer position of sponge (4), and the lower surface position that is connected screen pack (6) is pasted in the upper surface position of sponge (4).

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