CN2739013Y

CN2739013Y - Water-bag-type blackboard eraser

Info

Publication number: CN2739013Y
Application number: CN 200420086081
Authority: CN
Inventors: 王献峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-10-21
Filing date: 2004-10-21
Publication date: 2005-11-09
Anticipated expiration: 2014-10-21

Abstract

The utility model relates to a water-bag-type blackboard eraser. The top of a blackboard eraser casing is provided with a water bag with a water inlet nozzle and two sides of the water bag are connected with a pipeline. The middle part of the casing is provided with an upper support rack and a lower support rack and a shaft being sheathed with a roller is longitudinally arranged between the upper support rack and the lower support rack, and in which, the pipeline is straightly through the lower support rack and the pipeline and the side corresponding to the roller are provided with fine pores. When the blackboard is erased, the water bag is pressed and then water is sprayed to the cotton cloth of the roller from the fine pores of the pipeline, so the wet cotton cloth can erase the blackboard very cleanly and chalk dust can not spread around. The utility model solves the problem of environmental pollution in the classroom and prevents teachers and students from injury.

Description

The water-bag type blackboard eraser

Technical field

The utility model relates to a kind of blackboard eraser, relates in particular to a kind of blackboard eraser that disposes water pocket.

Background technology

The used blackboard eraser of teaching mostly is the simple mechanism with grume sliver on the plank now, its simple structure, but shortcoming is a lot, be not easy to wipe clean, chalk powder flies everywhere after nuzzling up, have a strong impact on the air ambient in classroom, the student at teacher who erases the board or student, front row, classroom sucks lung to dust can bring very big injury to people's health.

Summary of the invention

Wipe untotally for the blackboard eraser that solves present use, influence the shortcoming of classroom air ambient, the purpose of this utility model provides a kind of blackboard eraser that disposes water pocket, can wipe clean very like a cork, does not have environmental pollution.

The technical scheme that the utility model adopted is: the water-bag type blackboard eraser comprises housing, water pocket is installed at top in the housing, be installed into water nozzle on the water pocket, the both sides connecting pipe of water pocket, middle part in the housing is provided with lower carriage, vertical installation shaft between the last lower carriage, suit roller on the axle, said pipeline is furnished with pore with the corresponding side of roller on the pipeline on lower carriage.

The utility model can also vertically be installed an axle again between last lower carriage, suit roller on the axle, two axles are placed side by side, hairbrush vertically is installed between two axles placing between the last lower carriage, side by side, bottom in the housing is provided with the last box of storage, the centre of storing up last box upper plate is open-minded, stores up the pluggable baffle plate of middle installation of last box plate.

The beneficial effects of the utility model are: owing to disposed water pocket, and configuration is furnished with the pipeline of pore, water can be sprayed on the cotton on the roller, can wipe very totally with the wet cotton that gets wet, there is not dust, hairbrush of She Zhiing and the last box of storage in addition, sticking chalk dust is swept in the last box of storage on the roller, avoid chalk dust to scatter everywhere, solved problem of environment pollution caused.

Description of drawings

Fig. 1 is the structure cutaway view of blackboard eraser;

Fig. 2 is the A-A cutaway view of Fig. 1.

Among the figure, 1. housing, 2. water pocket, 3. water inlet tap, 4. pipeline is 5. gone up lower carriage, 6. spool, 7. roller, 8. hairbrush, 9. storage last box, 10. baffle plate.

The specific embodiment

Below in conjunction with accompanying drawing structure of the present utility model and operation principle are elaborated.

Fig. 1, among Fig. 2, the water-bag type blackboard eraser comprises housing 1, water pocket 2 is installed at top in the housing 1, be installed into water nozzle 3 on the water pocket 2, the both sides connecting pipe 4 of water pocket 2, middle part in the housing 1 is provided with lower carriage 5, two axles 6 vertically are installed between the last lower carriage 5 side by side, suit roller 7 on the axle 6, pipeline 4 is furnished with pore with roller 7 corresponding sides on the pipeline 4 on lower carriage 5, between the last lower carriage 5, hairbrush 8 vertically is installed between two axles 6 placing side by side, bottom in the housing 1 is provided with the last box 9 of storage, and the centre of storing up last box 9 upper plates is open-minded, stores up the pluggable baffle plate 10 of middle installation of last box 9 base plates.

From water inlet tap 3 water is poured into the water pocket 2, when needs erase the board, hold housing 1 and push down water pocket 2, water in the water pocket 2 is from the pore ejection of pipeline 4, be sprayed on the roller 7 that is wrapped with cotton, when the blackboard eraser that swings erases the board, the wet cotton of being stained with water can get blackboard eraser very clean, and the phenomenon that does not have chalk dust to fly upward, roller 7 can rotate around axle 6, and the hairbrush 8 that is provided with between the last lower carriage 5 is just swept down the chalk dust on the roller 7, falls into stored ash box 9, pull up baffle plate 10, can clear up away the chalk dust in the stored ash box 9.

The housing of water-bag type blackboard eraser can be made different shapes such as mouse, the convenient gripping, and profile is beautiful.

Claims

1. water-bag type blackboard eraser, comprise housing (1), it is characterized in that water pocket (2) is installed at the top in the housing (1), is installed into water nozzle (3) on the water pocket (2), the both sides connecting pipe (4) of water pocket (2), middle part in the housing (1) is provided with lower carriage (5), vertical installation shaft (6) between the last lower carriage (5), and axle (6) is gone up suit roller (7), said pipeline (4) is on lower carriage (5), and pipeline (4) is gone up and the corresponding side of roller (7) is furnished with pore.

2. water-bag type blackboard eraser according to claim 1 is characterized in that, said going up vertically installed two axles (6) between the lower carriage (5), and said axle (6) is gone up suit roller (7), and two axles (6) are placed side by side.

3. water-bag type blackboard eraser according to claim 1 and 2 is characterized in that, said going up vertically installed hairbrush (8) between the lower carriage (5).

4. water-bag type blackboard eraser according to claim 3 is characterized in that, the bottom in the said housing (1) is provided with storage last box (9), and the centre of storing up last box (9) upper plate is open-minded, stores up the middle pluggable baffle plate (10) of installing of last box (9) base plate.