CN201329747Y

CN201329747Y - Dual-face dust collecting blackboard eraser

Info

Publication number: CN201329747Y
Application number: CNU2008202061870U
Authority: CN
Inventors: 刘路
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-26
Filing date: 2008-12-26
Publication date: 2009-10-21
Anticipated expiration: 2018-12-26

Abstract

The utility model discloses a dual-face dust collecting blackboard eraser, which comprises a shell body and an erasing plate, wherein the erasing plate is located in the shell body and is a dual-erasing-surface structure which can erase dust with a front and a rear surfaces, wherein a crank handle and a rotation shaft are respectively arranged on both ends of the erasing plate, the reversible erasing plate can be arranged on the lower portion of the shell body through the crank handles and the rotation shafts, a rear cover is arranged on the upper portion of the shell body, a dust removing device of dust on the erasing surfaces of the erasing plate is arranged in the shell body, and a dust collecting box is arranged on the end of the shell body. The blackboard eraser has the beneficial effects that since the erasing plate adopts the reversible dual-erasing-surface structure, the use is more convenient, since the dust removing device and the dust collecting device of dust on the erasing surfaces of the erasing plate are added, the dust on the erasing surfaces can be removed in time, which solves the problem of a common blackboard eraser that the erasing is unclear when the blackboard eraser is full of dust, and the phenomenon of flying dust when erasing a blackboard can be prevented. The dual-face dust collecting blackboard eraser has the characteristics of simple structure and low cost, and is beneficial to spread and apply.

Description

Two-sided control of dust blackboard eraser

Technical field

The utility model relates to a kind of blackboard eraser of the usefulness of imparting knowledge to students, and the positive and negative that specifically is meant a kind of blackboard eraser all can be used to the two-sided control of dust blackboard eraser that erases the board.

Background technology

Traditional blackboard is wiped has only a wiping face, thus in the process of use, after blackboard eraser can occurring and sticking dust, the sordid problem of blackboard eraser, in addition, the dust that sticks on the blackboard eraser can not get effective cleaning, does not also reasonably deposit.The dust that glues in order to remove on the blackboard eraser, can only with blackboard eraser on the ground or other place pat, thereby produced a large amount of dust, polluted peripheral environment.

The utility model content

In order to overcome above-mentioned deficiency, the purpose of this utility model is to provide a kind of can effectively remove dust, two-sided control of dust blackboard eraser easy to use, simple in structure.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: two-sided control of dust blackboard eraser, form by housing, wiping board, wiping board is positioned at housing, described wiping board is two wiping face structures that a front-back can both crocus dirt, be provided with rocking handle and rotating shaft at the two ends of wiping board, turnover wiping board is installed in lower part of frame by rocking handle and rotating shaft; The top of described housing is provided with bonnet, is provided with the dust scavenge unit of wiping on the board wiper plane in housing, is provided with dust-collecting box in the end of housing.

Dust scavenge unit on the described wiping board wiper plane by press net, the depression bar of spring be housed, the screw that has a boss is formed, the screw threads that has boss is screwed in the both sides of housing, the depression bar that spring is housed is socketed on the boss of screw by the through hole of its end, near the side of being equipped with the other end of depression bar of spring is provided with slotted hole, presses the two ends of the cross bar of net both sides to be socketed in the slotted hole of depression bar and presses net to be pressed on the wiping board.

The two ends of described wiping board are provided with deep-slotted chip breaker, are provided with and the contacted bow of wiping board deep-slotted chip breaker at the two ends of pressing net.

Have arc groove on the open end of described dust-collecting box, the guide rail that has circular section set on the end face of opening on this arc groove and the housing socket-connects.

It is sorptive materials such as sponge or felt that the used material of face is wiped in the front and back of described wiping board.

The beneficial effects of the utility model are: because wiping board adopts turnover pair of wiping face structure, so use more convenient; Owing to set up dust scavenge unit and the dust-collecting box wiped on the board wiper plane, can do to remove timely to the dust on the wiping face, solved and wiped sordid problem, the phenomenon of the dust from flying that having avoided erases the board is occurred after ordinary blackboard eraser sticks dust; The utility model also has characteristics simple in structure, with low cost, helps applying.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:

Fig. 1 is a stereogram of the present utility model;

Fig. 2 is a mounting connection structure schematic diagram shown in Figure 1.

Among the figure: 1, housing; 2, bonnet; 3, wiping board; 4, the guide rail of circular section; 5, rocking handle; 6, rotating shaft; 7, press net; 8, depression bar; 9, spring; 10, the screw that has boss; 11, dust-collecting box; 12, back wiping face; 13, preceding wiping face; 14, through hole; 15, slotted hole; 16, cross bar; 17, deep-slotted chip breaker; 18, bow; 19, arc groove.

The specific embodiment

As shown in Figure 1 and Figure 2,: two-sided control of dust blackboard eraser, form by housing 1, wiping board 3, wiping board 3 is positioned at housing 1, described wiping board 3 is two wiping face structures that a front-back can both crocus dirt, be provided with rocking handle 5 and rotating shaft 6 at the two ends of wiping board 3, turnover wiping board 3 is installed in the bottom of housing 1 by rocking handle 5 and rotating shaft 6; The top of described housing 1 is provided with bonnet 2, is provided with the dust scavenge unit of wiping on the board wiper plane in housing 1, is provided with dust-collecting box 11 in the end of housing.

Dust scavenge unit on the described wiping board wiper plane by press net 7, the depression bar 8 of spring 9 be housed, the screw 10 that has a boss is formed, the screw 10 that has boss is screwed in the both sides of housing 1, the depression bar 8 that spring 9 is housed is socketed on the boss of screw by the through hole 14 of its end, near the side of being equipped with the other end of depression bar 8 of spring is provided with slotted hole 15, presses the two ends of the cross bar 16 of net 7 both sides to be socketed in the slotted hole 15 of depression bar and presses net 7 to be pressed on the wiping board 3.

The two ends of described wiping board are provided with deep-slotted chip breaker 17, are provided with and the contacted bow 18 of wiping board deep-slotted chip breaker at the two ends of pressing net.

Have arc groove 19 on the open end of described dust-collecting box, the guide rail 4 that has circular section set on the end face of opening on this arc groove 19 and the housing 1 socket-connects.

The preceding wiping face 13 of described wiping board, back wiping face 12 used materials are sponge.

Operation principle of the present utility model: the operation principle of two-sided control of dust blackboard eraser is: when rotation crank 5 not, press net 7 to compress wiping board 3 under the active force of spring 9 and rocking bar 8, two-sided control of dust blackboard eraser is worked as ordinary blackboard eraser.After the preceding wiping face 13 of wiping board 3 sticks dust, blackboard eraser there are dust-collecting box 11 1 ends down, rotation crank 5 makes wiping board 3 upsets, wiping board 3 will be pressed net 7 jack-up by the deep-slotted chip breaker 17 at two ends and the bow 18 at pressure net 7 two ends, when the preceding wiping face 13 of wiping board 3 is turned to the back, press net 7 to fall after rise fast under the active force of spring 9 and rocking bar 8, the dust bullet that sticks on the preceding wiping face 13 is dropped in the dust-collecting box 11 of bottom, at this moment, back wiping face 12 is turned to the front, begins to be used.After each upset, the wiping face that originally sticks dust outside wiping shell forwards in the housing 1 by dedusting, has originally then been forwarded to outside the shell by the one side of dedusting in the wiping shell and has worked.

Claims

1, a kind of two-sided control of dust blackboard eraser, form by housing (1), wiping board (3), wiping board (3) is positioned at housing (1), it is characterized in that: described wiping board (3) is two wiping face structures that a front-back can both crocus dirt, be provided with rocking handle (5) and rotating shaft (6) at the two ends of wiping board (3), turnover wiping board (3) is installed in the bottom of housing (1) by rocking handle (5) and rotating shaft (6); The top of described housing (1) is provided with bonnet (2), is provided with the dust scavenge unit of wiping on the board wiper plane in housing (1), is provided with dust-collecting box (11) in the end of housing.

2, two-sided control of dust blackboard eraser according to claim 1, it is characterized in that: the dust scavenge unit on the described wiping board wiper plane is by pressing net (7), the depression bar (8) of spring (9) is housed, the screw (10) that has boss is formed, the screw (10) that has boss is screwed in the both sides of housing (1), the depression bar (8) that spring (9) are housed is socketed on the boss of screw by the through hole (14) of its end, near the side of being equipped with the other end of depression bar (8) of spring is provided with slotted hole (15), presses the two ends of the cross bar (16) of net (7) both sides to be socketed in the slotted hole (15) of depression bar and presses net (7) to be pressed on the wiping board (3).

3, two-sided control of dust blackboard eraser according to claim 1, it is characterized in that: the two ends of described wiping board (3) are provided with deep-slotted chip breaker (17), are provided with and the contacted bow of wiping board deep-slotted chip breaker (17) (18) at the two ends of pressing net (7).

4, two-sided control of dust blackboard eraser according to claim 1, it is characterized in that: have arc groove (19) on the open end of described dust-collecting box (11), the guide rail (4) that has circular section set on the end face of opening on this arc groove (19) and the housing (1) socket-connects.