CN208714780U

CN208714780U - A kind of teaching blackboard eraser for effectivelying prevent chalk dust to drift

Info

Publication number: CN208714780U
Application number: CN201821178691.4U
Authority: CN
Inventors: 许雪连; 杨文俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-07-25
Filing date: 2018-07-25
Publication date: 2019-04-09
Anticipated expiration: 2028-07-25

Abstract

The utility model discloses a kind of teaching blackboard erasers for effectivelying prevent chalk dust to drift, including dust cover, midpoint at the top of dust cover is fixedly connected with hand-held belt, midpoint at the top of dust cover inner wall is fixedly connected with connecting column, the bottom of connecting column is fixedly connected with blackboard eraser body, the bottom of blackboard eraser body is through dust cover and extends to outside it, and the two sides at the top of dust cover inner wall are fixedly connected to sweep-up pipe.The utility model passes through setting dust cover, sweep-up pipe, miniature exhaust fan, Air Filter, micro hydraulic cylinder, sliding panel, micromotor and dust suction felt woollen brush; the blackboard eraser of the prior art is solved the problems, such as greatly most without the function of preventing chalk dust from drifting; avoid teacher and classmate to drift chalk dust sucking and caused by actual bodily harm; also avoid the case where chalk dust that part descends slowly and lightly on ground also needs cleaning; the health for protecting teacher and classmate is advantageous to use when teaching.

Description

A kind of teaching blackboard eraser for effectivelying prevent chalk dust to drift

Technical field

The utility model relates to field of Educational Technology, specially a kind of teaching blackboard for effectivelying prevent chalk dust to drift It wipes.

Background technique

Education enlightens cultivation by education, is weighed with existing experience, knowledge in people, explains various phenomenons, problem or behavior for it, It is to be treated with the thinking of a kind of relative maturity of people or rationality to recognize at all, and things is allowed to be able to the most fundamental deposit close to its , people wherein, being touched by sense organ to the state of Cognition Understanding to a kind of things slowly and forms a kind of comparatively perfect Or the self-consciousness thinking of rationality.But meanwhile people has the thinking in self-consciousness, and has its self sense organ dimension, institute It may not can be all absolutely correct with any educational conscious thinking, and should inductively understand the direction of its thinking, as long as The inherence of its not deviation things；Education is again a kind of teaching for thinking, and people is because of its own ideology, and has another sample Thinking tendency, so education is with most objective, most just conscious thinking when being enlightened by education in people, in this way, the thinking of people is just unlikely to Excessively deviation, and because thinking it is abundant due to gradually mature, rationality, and move towards as a result, most rationality self and possess most correctly Thinking cognition.

Each section's purpose teacher be unable to do without the use of blackboard eraser in teaching, however the blackboard eraser of the prior art is mostly not Have the function of preventing chalk dust from drifting, many chalk dusts can be generated by attending class when erasing the board, a part of chalk dust can be flown upward out It goes to be sucked body by academics and students, so will cause serious actual bodily harm for a long time, be easy to produce respiratory disease, in addition one Part chalk dust can drift on the ground, it is also necessary to manual cleaning, it is time-consuming and laborious, and extremely it is unfavorable for use when teaching.

Utility model content

The purpose of this utility model is to provide a kind of teaching blackboard erasers for effectivelying prevent chalk dust to drift, and having can prevent The advantages of only chalk dust drifts solves blackboard eraser the asking most without the function of preventing chalk dust from drifting greatly of the prior art Topic.

To achieve the above object, the utility model provides the following technical solutions: a kind of teaching is with effectivelying prevent chalk dust to float Scattered blackboard eraser, including dust cover, the midpoint at the top of the dust cover are fixedly connected with hand-held belt, the dust cover inner wall The midpoint at top is fixedly connected with connecting column, and the bottom of the connecting column is fixedly connected with blackboard eraser body, the blackboard eraser The bottom of ontology is through dust cover and extends to outside it, and the two sides at the top of the dust cover inner wall are fixedly connected to dust suction Pipe, the dust cover inner wall top and the inside for being located at sweep-up pipe are fixedly connected with miniature exhaust fan, and the dust cover top is right It answers the position of miniature exhaust fan to offer air vent, on the inner wall of the sweep-up pipe and is located at the lower section of miniature exhaust fan and fixed connects It is connected to Air Filter, the two sides of the connecting column are fixedly connected to micro hydraulic cylinder, at the top of the dust cover inner wall and are located at and inhale Position between dirt pipe and micro hydraulic cylinder offers sliding slot, and the sliding slot is internally provided with sliding panel, the sliding panel Bottom is through sliding slot and extends to outside it, is fixedly connected with limited block on rear side of the sliding panel inside sliding slot, described dust-proof The position for covering corresponding limited block offers limiting slot used in conjunction with, side of the micro hydraulic cylinder far from connecting column with Sliding panel contacts with each other, and the sliding panel is fixedly connected with micromotor far from connecting column side and below Air Filter, Rotation axis is fixedly connected on the output shaft of the micromotor, the rotation axis runs through sweep-up pipe far from one end of micromotor And extend to inside it, the rotation axis surface inside sweep-up pipe is provided with dust suction felt woollen brush.

Preferably, the bottom of the connecting column two sides and position of corresponding blackboard eraser body is fixedly connected to reinforcing rib, The reinforcing rib is fixedly connected close to the side of blackboard eraser body with blackboard eraser body.

Preferably, the two sides at the top of the hand-held belt are provided with fixing bolt, and the bottom of the fixing bolt is from upper Hand-held belt and dust cover are sequentially passed through under and extend to the inside of dust cover.

Preferably, the sweep-up pipe is fixedly connected with dust-proof cushion close to the position of connecting column side and corresponding rotation axis, institute One end of rotation axis is stated through dust-proof cushion and is extended to outside it.

Compared with prior art, the beneficial effects of the utility model are as follows:

1, the utility model passes through setting dust cover, sweep-up pipe, miniature exhaust fan, Air Filter, micro hydraulic cylinder, sliding Plate, micromotor and dust suction felt woollen brush solve the blackboard eraser of the prior art greatly most without the function of preventing chalk dust from drifting The problem of, during erasing the board, miniature exhaust fan synchronizes absorption to the dust of generation, at the same time micro hydraulic cylinder Micromotor is driven to move in parallel, minitype motor driving dust suction felt woollen brush carries out the cleaning of dust in sweep-up pipe, can be effective Prevent drifting for most of chalk dust, avoid teacher and classmate to drift chalk dust sucking and caused by actual bodily harm, Avoiding the chalk dust that part descends slowly and lightly on ground also needs the case where sweeping, and protects the health of teacher and classmate, highly beneficial Use when teaching.

2, the utility model strengthens fixation of the blackboard eraser body on connecting column, prevents teacher by setting reinforcing rib When erasing the board, it is firmly excessive caused by connecting column fracture or blackboard eraser body is from falling off on connecting column, pass through setting Fixing bolt, prevents from holding belt using overlong time and falls off from dust cover, influences using preventing by the way that dust-proof cushion is arranged When rotation axis moves left and right cleaning in sweep-up pipe, chalk dust falls off in the crack between rotation axis and sweep-up pipe and drifts out Come, into micromotor or micro hydraulic cylinder, causes their damage.

Detailed description of the invention

Fig. 1 is the cross-sectional view of the structure of the utility model main view；

Fig. 2 is the partial enlarged view of A-A in the utility model Fig. 1.

In figure: 1 dust cover, 2 hand-held belts, 3 connecting columns, 4 blackboard eraser bodies, 5 sweep-up pipes, 6 miniature exhaust fans, 7 ventilations Hole, 8 Air Filters, 9 micro hydraulic cylinders, 10 sliding slots, 11 sliding panels, 12 limited blocks, 13 limiting slots, 14 micromotors, 15 rotation axis, 16 dust suction felt woollen brush, 17 reinforcing ribs, 18 fixing bolts, 19 dust-proof cushions.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

A kind of teaching blackboard eraser for effectivelying prevent chalk dust to drift referring to FIG. 1-2, including dust cover 1, dust cover 1 The chalk dust largely drifted during erasing the board can be effectively covered, the midpoint at 1 top of dust cover is fixedly connected with hand-held skin Band 2, user carry out the erasing to blackboard by injecting hand-held belt 2 with hand, are made of moccasin, comfort level with higher, The two sides at hand-held 2 top of belt are provided with fixing bolt 18, and the bottom of fixing bolt 18 sequentially passes through hand-held skin from top to bottom It prevents from holding belt using overlong time by the way that fixing bolt 18 is arranged with 2 and dust cover 1 and the inside for extending to dust cover 1 22 fall off from dust cover 1, influence using the midpoint at the top of 1 inner wall of dust cover is fixedly connected with connecting column 3, connecting column 3 Bottom is fixedly connected with blackboard eraser body 4, and the bottom of blackboard eraser body 4 through dust cover 1 and extends to outside it, connecting column 3 The bottom of the two sides and position of corresponding blackboard eraser body 4 is fixedly connected to reinforcing rib 17, reinforcing rib 17 is close to blackboard eraser body 4 Side be fixedly connected with blackboard eraser body 4, by be arranged reinforcing rib 17, strengthen the consolidating on connecting column 3 of blackboard eraser body 4 It is fixed, prevent teacher when erasing the board, it is firmly excessive caused by connecting column 3 fracture or blackboard eraser body 4 is from connecting column 3 It falls off, the two sides at the top of 1 inner wall of dust cover are fixedly connected to sweep-up pipe 5, at the top of 1 inner wall of dust cover and are located at sweep-up pipe 5 Inside is fixedly connected with miniature exhaust fan 6, and the position that miniature exhaust fan 6 is corresponded at the top of dust cover 1 offers air vent 7, ventilation Hole 7 is used for the ventilation to miniature exhaust fan 6 and handles, and is fixedly connected on the inner wall of sweep-up pipe 5 and positioned at the lower section of miniature exhaust fan 6 There is Air Filter 8, Air Filter 8 can effectively prevent the attraction wind of the miniature sending of exhaust fan 6 and be blown into dust wherein, cause to damage Bad, Air Filter 8 plays the role of that chalk dust is avoided to enter, and the two sides of connecting column 3 are fixedly connected to micro hydraulic cylinder 9, dust-proof It covers at the top of 1 inner wall and the position between sweep-up pipe 5 and micro hydraulic cylinder 9 offers sliding slot 10, the length and suction of sliding slot 10 The diameter of dirt pipe 5 is identical, and sliding slot 10 is internally provided with sliding panel 11, and the bottom of sliding panel 11 through sliding slot 10 and extends to it Outside is fixedly connected with limited block 12, the position of the corresponding limited block 12 of dust cover 1 on rear side of the sliding panel 11 inside sliding slot 10 Limiting slot 13 used in conjunction with is offered, limited block 12 and limiting slot 13 prevent sliding panel 11 to fall off from sliding slot 10, Side of the micro hydraulic cylinder 9 far from connecting column 3 contacts with each other with sliding panel 11, and sliding panel 11 is far from 3 side of connecting column and is located at The lower section of Air Filter 8 is fixedly connected with micromotor 14, and rotation axis 15 is fixedly connected on the output shaft of micromotor 14, rotation The one end of axis 15 far from micromotor 14 is through sweep-up pipe 5 and extends to inside it, 15 table of rotation axis inside sweep-up pipe 5 Face is provided with dust suction felt woollen brush 16, and dust suction felt woollen brush 16 can be dismantled from rotation axis 15, and cleaning replacement, sweep-up pipe 5 It is fixedly connected with dust-proof cushion 19 close to the position of 3 side of connecting column and corresponding rotation axis 15, one end of rotation axis 15 is through dust-proof It pad 19 and extends to outside it, passes through setting dust-proof cushion 19, when preventing rotation axis 15 from moving left and right cleaning in sweep-up pipe 5, powder Pen ash falls off in crack between rotation axis 15 and sweep-up pipe 5 to be drifted out, into micromotor 14 or micro hydraulic cylinder 9, The damage for causing them, by the way that dust cover 1, sweep-up pipe 5, miniature exhaust fan 6, Air Filter 8, micro hydraulic cylinder 9, sliding panel is arranged 11, micromotor 14 and dust suction felt woollen brush 16 solve the blackboard eraser of the prior art greatly most without preventing chalk dust from drifting The problem of function, during erasing the board, the dust of 6 pairs of miniature exhaust fan generations synchronizes absorption, miniature at the same time Hydraulic cylinder 9 drives micromotor 14 to move in parallel, and micromotor 14 drives dust suction felt woollen brush 16 to carry out dust in sweep-up pipe 5 Cleaning, can effectively prevent drifting for most of chalk dust, avoid teacher and classmate and suck and cause to the chalk dust drifted Actual bodily harm, also avoid part descend slowly and lightly ground chalk dust also need sweep the case where, protect the body of teacher and classmate Health is advantageous to use when teaching.

In use, hand is inserted into hand-held belt 2, blackboard is wiped using blackboard eraser body 4, by miniature exhaust fan 6, Micro hydraulic cylinder 9 and micromotor 14 are opened simultaneously, and during erasing the board, miniature exhaust fan 6 is combined with dust cover 1 for big portion In the chalk dust sucking sweep-up pipe 5 that swarming is raised, at the same time, micro hydraulic cylinder 9 pushes sliding panel 11, to push micromotor 14 are moved, and rotation axis 15 drives dust suction felt woollen brush 16 to rotate, and move in circles the chalk dust carried out to sucking in sweep-up pipe 5 Removing, it can realization the chalk dust flown upward is absorbed on one side, the chalk dust of sucking is handled on one side, use is non- Often simple, cleaning effect is good, avoid teacher and classmate to the chalk dust sucking drifted and caused by actual bodily harm, it is highly beneficial Use when teaching.

In summary: the teaching blackboard eraser for effectivelying prevent chalk dust to drift, by setting dust cover 1, sweep-up pipe 5, Miniature exhaust fan 6, Air Filter 8, micro hydraulic cylinder 9, sliding panel 11, micromotor 14 and dust suction felt woollen brush 16, solve existing The blackboard eraser of technology greatly most without the function of preventing chalk dust from drifting the problem of.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of teaching blackboard eraser for effectivelying prevent chalk dust to drift, including dust cover (1), it is characterised in that: described dust-proof Midpoint at the top of cover (1) is fixedly connected with hand-held belt (2), and the midpoint at the top of dust cover (1) inner wall is fixedly connected Have connecting column (3), the bottom of the connecting column (3) is fixedly connected with blackboard eraser body (4), the bottom of the blackboard eraser body (4) Portion is through dust cover (1) and extends to outside it, and the two sides at the top of dust cover (1) inner wall are fixedly connected to sweep-up pipe (5), it is fixedly connected with miniature exhaust fan (6) at the top of dust cover (1) inner wall and positioned at the inside of sweep-up pipe (5), it is described anti- The position of corresponding miniature exhaust fan (6) offers air vent (7) at the top of dust hood (1), on the inner wall of the sweep-up pipe (5) and is located at It is fixedly connected with Air Filter (8) below miniature exhaust fan (6), the two sides of the connecting column (3) are fixedly connected to miniature liquid Cylinder pressure (9), at the top of dust cover (1) the inner wall and position between sweep-up pipe (5) and micro hydraulic cylinder (9) offer cunning Slot (10), the sliding slot (10) are internally provided with sliding panel (11), the bottom of the sliding panel (11) through sliding slot (10) and It extends to outside it, is located on rear side of sliding slot (10) internal sliding panel (11) and is fixedly connected with limited block (12), the dust cover (1) position of corresponding limited block (12) offers limiting slot used in conjunction with (13), and the micro hydraulic cylinder (9) is far from even The side and sliding panel (11) for connecing column (3) contact with each other, and the sliding panel (11) is far from connecting column (3) side and is located at Air Filter (8) it is fixedly connected with below micromotor (14), is fixedly connected with rotation axis on the output shaft of the micromotor (14) (15), the one end of the rotation axis (15) far from micromotor (14) through sweep-up pipe (5) and extends to inside it, is located at dust suction Internal rotation axis (15) surface of pipe (5) is provided with dust suction felt woollen brush (16).

2. a kind of teaching blackboard eraser for effectivelying prevent chalk dust to drift according to claim 1, it is characterised in that: described The position of the bottom of connecting column (3) two sides and corresponding blackboard eraser body (4) is fixedly connected to reinforcing rib (17), the reinforcing rib (17) side close to blackboard eraser body (4) is fixedly connected with blackboard eraser body (4).

3. a kind of teaching blackboard eraser for effectivelying prevent chalk dust to drift according to claim 1, it is characterised in that: described Two sides at the top of hand-held belt (2) are provided with fixing bolt (18), and the bottom of the fixing bolt (18) is from top to bottom successively Through hand-held belt (2) and dust cover (1) and the inside for extending to dust cover (1).

4. a kind of teaching blackboard eraser for effectivelying prevent chalk dust to drift according to claim 1, it is characterised in that: described Sweep-up pipe (5) is fixedly connected with dust-proof cushion (19), the rotation close to the position of connecting column (3) side and corresponding rotation axis (15) One end of axis (15) is through dust-proof cushion (19) and extends to outside it.