CN2573276Y

CN2573276Y - Multifunctional dust-collecting blackboard eraser

Info

Publication number: CN2573276Y
Application number: CN 02262329
Authority: CN
Inventors: 韩敏慧; 田举贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-15
Filing date: 2002-10-15
Publication date: 2003-09-17
Anticipated expiration: 2012-10-15

Abstract

The utility model relates to the technical field of stationery appliances, particularly to a multifunctional blackboard eraser with dust collection. In order to solve the problems of complex structure, inconvenient use, high fabrication cost, high price, energy consumption in use and difficult popularization in schools exist in the prior art, the utility model has the technical scheme that a multifunctional blackboard eraser with dust collection comprises a shell and an eraser surface. The utility model is characterized in that the shell forms a slide fit with the eraser surface which is embedded in the shell, a return spring is arranged between the bottom of the shell and the eraser surface, and the eraser surface is composed of a plurality of eraser strips which are mutually provided with gaps and are arranged on a support frame. The utility model has the advantages of simple structure, convenient use, good use effect, effective dust collection and low price.

Description

Multi-functional control of dust blackboard eraser

Affiliated technical field:

The utility model relates to the school supply and stationery technical field, is specifically related to a kind of multi-functional control of dust blackboard eraser.

Background technology:

The present dust that exists at the general blackboard eraser of teaching industry is big, the healthy problem of harm teachers and students all is not resolved for a long time.By retrieval, also there are some can solve the disperse novel blackboard eraser of problem of dust, the blackboard eraser that for example has dust catcher can effectively address this problem, but its complex structure, use inconvenience, manufacturing cost high price costliness in use also need expend the energy simultaneously, therefore is difficult to popularize use in school.

Summary of the invention:

The utility model is to solve prior art complex structure, use inconvenience, expensive shortcoming.

For solving the problem that prior art exists, the technical solution of the utility model is as follows: a kind of multi-functional control of dust blackboard eraser, comprise housing 1 and wiping face 3, its special character is: described housing 1 is slidably to cooperate with the wiping face 3 that embeds wherein, be provided with back-moving spring 8 between housing 1 bottom and the wiping face 3, described wiping face 3 by several slit is arranged mutually, the crocus bar 10 that is installed on the bracing frame 2 constitutes.

Support frame as described above 2 is latticed, can secure fixation crocus bar 10 and back-moving spring 8.

Support frame as described above 2 is shutters, and the blade 9 on it can be avoided at the wiping face 3 of blackboard eraser downwards the time, and the dust that has entered in housing 1 cavity that is provided with back-moving spring 8 returns in the wiping face 3, influences the quality of wiping.

Described housing 1 bottom is provided with through hole 6, and housing 1 bottom through-hole 6 arranged outside have the outer cover of dismounting with it, and this outer cover is used for blocking at ordinary times through hole 6, is beneficial to the cleaning of dust like this.

Described outer cover is the plane back cover 12 that correspondence is blocked through hole 6, and is bonding with stick between this back cover 12 and housing 1 bottom, can alleviate the weight of whole blackboard eraser like this, and tearing simultaneously can be taken off back cover 12, and pressing can be bonding.

Be arranged with in parallel on the described housing 1 the opening ledge for chalk on blackboard 4 that can embed chalk and with the support column 5 of housing 1 hinge-coupled, interface is away from the openend of ledge for chalk on blackboard 4, is that the center of circle can constitute simple and easy compasses with the chalk that embeds ledge for chalk on blackboard 4 with the movable end of this support column 5.

Also open slot 11 can be set on the described housing 1, support column 5 is embedded in the open slot 11, and ledge for chalk on blackboard 4 is positioned at a side with the openend of open slot 11 like this, and support column 5 is embedded in the housing 1 not fragile.

Be symmetrical arranged flutedly 7 on described housing 1 sidewall, be convenient to grip.

Compared with prior art, the utility model has the advantages that: 1, simple in structure, to similar on the original blackboard eraser profile, can popularize in school and use; 2, easy to use, identical with original blackboard eraser using method, only once clear up and get final product being accumulated in dust in the housing cavity in use for some time; 3, result of use is good, can effectively collect dust, and need not expend other energy, and use cost is low, and price is low.

Description of drawings:

Fig. 1 is the utility model schematic perspective view;

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

Fig. 3 is the support frame structure schematic diagram;

Fig. 4 is that the B of Fig. 1 is to view;

Fig. 5 is to use exemplary plot.

Description of reference numerals is as follows:

The 1-housing, the 2-bracing frame, 3-wipes face, 4-ledge for chalk on blackboard, 5-support column, 6-through hole, 7-groove, 8-back-moving spring, 9-blade, 10-crocus bar, 11-open slot, 12-back cover.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

Comprise housing 1 and wiping face 3 referring to Fig. 1～4 the utility model, said housing 1 slidably cooperates with the wiping face 3 that embeds wherein, is provided with back-moving spring 8 between housing 1 bottom and the wiping face 3, and the cavity at back-moving spring 8 places is powder collection cavity.Said wiping face 3 by several slit is arranged mutually, the crocus bar 10 that is installed on the bracing frame 2 constitutes.Bracing frame 2 is shutters, and the blade 9 on it can move in powder collection cavity.Said housing 1 bottom is provided with through hole 6, has with the bonding plane back cover 12 of tear strip in housing 1 bottom through-hole 6 arranged outside; Said housing 1 outside is arranged with opening ledge for chalk on blackboard 4 that can embed chalk and the open slot 11 that can embed support column 5 in parallel, ledge for chalk on blackboard 4 is positioned at the same side with the openend of open slot 11, support column 5 and housing 1 be by hinge-coupled, and its interface is positioned at the blind end of the open slot 11 far away apart from ledge for chalk on blackboard 4.Be symmetrical arranged fluted 7 on said housing 1 sidewall.

During use, the crocus bar 10 on the wiping face 3 is wiped the dust on the blackboard down, and dust enters the slit mostly, enters in the powder collection cavity by open blade 9 on the bracing frame 2 under the gravity effect then, and when shelving in the other direction, blade 9 closes and stops dust to return wiping face 3.Back-moving spring 8 can make the user be convenient to controlled pressure, also is beneficial to protection wiping face, simultaneously dust easily loose through vibrating, drop, reach the purpose of collection powder.

Said bracing frame 2 also can be latticed, can secure fixation crocus bar and back-moving spring, and this structure fabrication is more simple, and not fragile.

Referring to Fig. 5, be embedded in chalk at ledge for chalk on blackboard 4, support column 5 movable ends are lifted, promptly can be used as simple and easy compasses and use.

Claims

1, a kind of multi-functional control of dust blackboard eraser, comprise housing (1) and wiping face (3), it is characterized in that: described housing (1) is slidably to cooperate with the wiping face (3) that embeds wherein, be provided with back-moving spring (8) between housing (1) bottom and the wiping face (3), described wiping face (3) is by several crocus bar (10) formations that slit is arranged mutually, be installed on bracing frame on (2).

2, multi-functional control of dust blackboard eraser as claimed in claim 1 is characterized in that: support frame as described above (2) is latticed (8).

3, multi-functional control of dust blackboard eraser as claimed in claim 1, it is characterized in that: support frame as described above (2) is a shutter.

4, multi-functional control of dust blackboard eraser as claimed in claim 2 is characterized in that: described housing (1) bottom is provided with through hole (6), and housing (1) bottom through-hole (6) arranged outside has the outer cover of dismounting with it.

5, multi-functional control of dust blackboard eraser as claimed in claim 4 is characterized in that: described outer cover is plane back cover (12), and is bonding with stick between this back cover (12) and housing (1) bottom.

6, as claim 3 or 5 described multi-functional control of dust blackboard erasers, it is characterized in that: be arranged with in parallel on the described housing (1) opening ledge for chalk on blackboard (4) and with the support column (5) of housing (1) hinge-coupled, interface is away from the openend of ledge for chalk on blackboard (4).

7, multi-functional control of dust blackboard eraser as claimed in claim 6, it is characterized in that: described housing (1) is provided with open slot (11), and support column (5) is embedded in the open slot (11).

8, multi-functional control of dust blackboard eraser as claimed in claim 7 is characterized in that: be symmetrical arranged fluted (7) on described housing (1) sidewall.