CN210881476U

CN210881476U - Device is erased with chalk to college english mr teaching

Info

Publication number: CN210881476U
Application number: CN201921091029.XU
Authority: CN
Inventors: 李杨
Original assignee: Harbin Finance University
Current assignee: Harbin Finance University
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-06-30
Anticipated expiration: 2029-07-12

Abstract

The utility model discloses a chalk erasing device is used in teaching of college english mr, including panel, anti-return mechanism and brush hair, the lower surface intermediate position of panel installs the arch, and the below of panel is provided with the storage dust box, the outside of storing up dust box is connected with the protection casing, anti-return mechanism installs in the lower surface intermediate position of storing up dust box, and anti-return mechanism's lower extreme is connected with the pipeline, the internally mounted of pipeline has the suction pump, and the lower extreme opening part of pipeline is fixed with the backup pad, the brush hair evenly sets up in the lower surface of backup pad, storage battery is installed to storage dust box's the left and right sides lower surface symmetry, and storage battery's below is provided with coupling assembling, coupling assembling's below evenly is provided with the rag strip. The utility model discloses an effective antiskid is convenient for change the wiping cloth strip to be favorable to preventing that the chalk dust from flying upward, pollute ground, brush hair and wiping cloth strip mutual complementary action are favorable to avoiding a large amount of dusts to gather on the wiping cloth strip.

Description

Device is erased with chalk to college english mr teaching

Technical Field

The utility model relates to a teaching technical field specifically is a device is erased with chalk to college english mr's teaching.

Background

The blackboard eraser is the daily teaching in-process and uses a very frequent cleaning appliance, though multimedia teaching is more and more popular, but at the teaching in-process of college english, blackboard writing teaching still can not be replaced, the english teacher need write single english word on the blackboard regularly, the english short sentence, english essay even, help the student to remember the word or dredge grammar, consequently college english mr is also very urgent to the demand of the higher blackboard eraser of practicality.

The blackboard eraser on the existing market easily causes dust to fly upwards in the use process, pollutes the ground, and easy deposition of dust on the wiping cloth is inconvenient for cleaning, inconvenient change wiping cloth's problem simultaneously, for this reason, we provide a chalk erasing device for college english teacher's teaching.

Disclosure of Invention

An object of the utility model is to provide a chalk eraser device is used in teaching of college english mr to solve the blackboard eraser on the existing market that proposes in the above-mentioned background art, easily cause the dust to fly upward in the use, pollute ground, and easy deposition on the wiper, be not convenient for clean, the inconvenient problem of changing the wiper simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a device is erased with chalk to college english mr teaching, includes panel, anti-return mechanism and brush hair, the arch is installed to the lower surface intermediate position of panel, and the below of panel is provided with the dust storage box, the outside of dust storage box is connected with the protection casing, anti-return mechanism installs in the lower surface intermediate position of dust storage box, and anti-return mechanism's lower extreme is connected with the pipeline, the internally mounted of pipeline has the suction pump, and the lower extreme opening part of pipeline is fixed with the backup pad, the brush hair evenly sets up in the lower surface of backup pad, storage battery is installed to the left and right sides lower surface symmetry of dust storage box, and storage battery's below is provided with coupling assembling, coupling assembling's below evenly is provided with the rag strip.

Preferably, the upper surface of the panel is provided with ribs, and the ribs are uniformly distributed along the horizontal transverse axis of the panel.

Preferably, the lower surface of panel has seted up the draw-in groove, and stores up the dirt box and pass through draw-in groove and panel joint to the upper surface intermediate position of storing up the dirt box is seted up flutedly, and the dust storing box passes through simultaneously and closely laminates between recess and the arch.

Preferably, the backflow prevention mechanism comprises a baffle, an elastic traction rope and a fixed cross bar, the baffle is arranged at the opening at the upper end of the pipeline, the lower surface of the baffle is connected with the right end of the elastic traction rope, and the other end of the elastic traction rope is fixed with the fixed cross bar.

Preferably, round holes are formed in the supporting plate, and the round holes and the bristles are distributed at equal intervals.

Preferably, the connecting assembly comprises a burling patch and a round hair patch, the round hair patch is fixed on the upper surface of the cloth wiping strip, and the burling patch is bonded above the round hair patch.

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

1. the chalk erasing device for college English teacher teaching is provided with the panel, the roughness of the upper surface of the panel is higher, so that the friction force generated when the palm of a user is in contact with the panel is increased, the device is effectively prevented from slipping from the hand when the whole device is used in a quick friction mode, the dust storage box and the panel are fixed, the structure is simple, the fixation is stable, and the chalk erasing device is convenient to disassemble, so that dust in the dust storage box can be cleaned in time;

2. when the whole blackboard eraser is used, chalk dust can be sucked into the dust storage box and stored, so that the chalk dust can be prevented from flying to pollute the ground, and the backflow prevention mechanism can be favorable for preventing the dust in the dust storage box from escaping from a pipeline, so that the stable dust collection effect of the dust storage box is ensured;

3. set up the brush hair and clean the collection with the dust on blackboard writing surface earlier, and the rag strip only need wipe the blackboard writing seal of a government organization in old china, be favorable to avoiding a large amount of dusts to gather on the rag strip, keep the relative cleanness of rag strip, the dismantlement and the change of rag strip simultaneously to the array direction mutually perpendicular of the rag strip of the left and right sides is favorable to improving the effect that the seal of a government organization in old china was wiped to the rag strip, avoids taking place the gap seal of a government organization in old china and remains.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1 according to the present invention;

fig. 3 is a schematic diagram of the structure viewed from the right side of the present invention.

In the figure: 1. a panel; 2. a protrusion; 3. a dust storage box; 4. a protective cover; 5. a backflow prevention mechanism; 501. a baffle plate; 502. an elastic hauling rope; 503. fixing the transverse strips; 6. an air suction pump; 7. a support plate; 8. brushing; 9. a battery pack; 10. a connecting assembly; 101. sticking the stabbing wool; 102. round hair paste; 11. a wiping cloth strip; 12. a pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a chalk erasing device for college English teacher teaching comprises a panel 1, a protrusion 2, a dust storage box 3, a protective cover 4, a backflow prevention mechanism 5, a baffle 501, an elastic traction rope 502, a fixed cross bar 503, a suction pump 6, a support plate 7, brush hair 8, a storage battery pack 9, a connecting assembly 10, a bur sticker 101, a round fur sticker 102, a wiping cloth strip 11 and a pipeline 12, wherein the protrusion 2 is installed at the middle position of the lower surface of the panel 1, the dust storage box 3 is arranged below the panel 1, the upper surface of the panel 1 is provided with convex patterns, the convex patterns are uniformly distributed along the horizontal cross shaft direction of the panel 1, the convex patterns are distributed on the panel 1, the roughness degree of the upper surface of the panel 1 is higher, so that the friction force generated when the palm of a user is in contact with the panel 1 is increased, when the whole device is used in quick friction, the device is effectively prevented from slipping from hands, a clamping groove, the dust storage box 3 is clamped with the panel 1 through the clamping groove, the groove is formed in the middle position of the upper surface of the dust storage box 3, meanwhile, the dust storage box 3 is tightly attached to the protrusion 2 through the groove, the dust storage box 3 is clamped below the panel 1 through the clamping effect of the clamping groove and the limiting effect of the groove and the protrusion 2, and the dust storage box is simple in structure, stable in fixation and convenient to disassemble, so that dust in the dust storage box 3 can be cleaned in time;

the outer side of the dust storage box 3 is connected with a protective cover 4, the anti-backflow mechanism 5 is installed in the middle of the lower surface of the dust storage box 3, the lower end of the anti-backflow mechanism 5 is connected with a pipeline 12, an air suction pump 6 is installed inside the pipeline 12, a supporting plate 7 is fixed at the lower end opening of the pipeline 12, bristles 8 are uniformly arranged on the lower surface of the supporting plate 7, round holes are formed in the supporting plate 7 and are distributed at equal intervals with the bristles 8, the round holes formed in the supporting plate 7 can ensure that the supporting plate 7 is communicated up and down so as to suck dust, meanwhile, the bristles 8 protrude out of the wiping cloth strips 11 on two sides so that the bristles 8 clean and collect dust on the surface of a blackboard writing, and the wiping cloth strips 11 only need to wipe the blackboard writing marks, so that a large amount of dust is prevented from accumulating on the wiping cloth strips 11;

the lower surfaces of the left side and the right side of the dust storage box 3 are symmetrically provided with storage battery packs 9, the lower part of each storage battery pack 9 is provided with a connecting assembly 10, the lower part of each connecting assembly 10 is uniformly provided with a wiping cloth strip 11, the backflow prevention mechanism 5 comprises a baffle 501, an elastic traction rope 502 and a fixing cross strip 503, the opening at the upper end of the pipeline 12 is provided with the baffle 501, the lower surface of the baffle 501 is connected with the right end of the elastic traction rope 502, the other end of the elastic traction rope 502 is fixed with the fixing cross strip 503, when the whole blackboard eraser is used, dust can be sucked into the dust storage box 3 and stored, the flying of the chalk dust can be prevented, the ground can be polluted, the diameter of the baffle 501 in the backflow prevention mechanism 5 is larger than the diameter of the pipeline 12, the pipeline 12 can be conveniently covered, the dust in the dust storage box 3 can be prevented from escaping from the pipeline 12, and the, coupling assembling 10 includes thorn hair subsides 101 and circle hair subsides 102, and the last fixed surface of wiper strip 11 has circle hair subsides 102, and the top of circle hair subsides 102 bonds there is thorn hair subsides 101, it fixes in storage battery 9 below to set up wiper strip 11 through thorn hair subsides 101 and circle hair subsides 102 in coupling assembling 10, the fixed structure of bonding between thorn hair subsides 101 and the circle hair subsides 102 is simple, make things convenient for the dismantlement and the change of wiper strip 11, and the array orientation mutually perpendicular of the wiper strip 11 of the left and right sides, be favorable to improving the effect that the seal of a government organization in old china was wiped to wiper strip 11, avoid taking place the gap seal of a government organization in old china and remain.

The working principle is as follows: for the chalk erasing device for teaching of college English teachers, when blackboard writing needs to be erased, the two sides of the panel 1 are held by hands firstly, so that the convex patterns on the panel 1 are in contact with the palm surface to prevent slipping, then the whole device is kept parallel to a blackboard, the brush bristles 8 are firstly in contact with the characters of the blackboard writing, the whole device is moved back and forth with force, the brush bristles 8 rub the surfaces of the characters of the blackboard writing back and forth, so that chalk dust is scraped off, and the whole cloth erasing strip 11 and the brush bristles 8 are covered by the protective cover 4, so that the chalk dust is prevented from flying upwards;

then the air pump 6 is started, the storage battery pack 9 can supply power to the air pump 6, the air pump 6 works to form strong suction force, chalk dust in the protective cover 4 is sucked into the pipeline 12 along the round hole in the supporting plate 7, then the chalk dust is sent to the backflow prevention mechanism 5 through the air pump 6, at the moment, the fixing cross bar 503 penetrates through the pipeline 12 and is used for fixing the elastic traction rope 502, the elastic traction rope 502 has certain elasticity and can be used for drawing the baffle 501, the baffle 501 just covers the outlet of the pipeline 12, the suction force acts on the lower portion of the baffle 501 to push the baffle 501 to move upwards, so that the elastic traction rope 502 is stressed and extended, a gap is formed between the baffle 501 and the pipeline 12, the chalk dust can enter the dust storage box 3 from the gap, after the air pump 6 is closed, the elastic traction rope 502 rebounds and shortens to drive the baffle 501 to cover the outlet of the pipeline 12 again, the dust of the chalk is prevented from falling back;

then press the panel 1 hard, make the wiping cloth strip 11 contact the blackboard surface, move the whole apparatus hard to and fro, the wiping cloth strip 11 rubs on the blackboard surface, carry on the secondary cleaning to the blackboard writing print of the blackboard, when needing to change the wiping cloth strip 11, pull the wiping cloth strip 11 downward, the wiping cloth strip 11 drives the round hair paste 102 and the thorn hair paste 101 in the coupling assembling 10 to separate, push the dust storage box 3 leftwards hard finally, make the bulge 2 extruded and deformed by the dust storage box 3, make the bulge 2 misplace with the recess of the upper surface of the dust storage box 3, the right end of the dust storage box 3 breaks away from the neck of the lower surface of the panel 1, then pull the dust storage box 3 from the lower corner of the right, make the left end of the dust storage box 3 break away from the neck of the lower surface of the panel 1, can dismantle the dust storage box 3 from the bottom of the panel 1, then pour out the dust inside of the dust storage box 3 through the through hole of the surface of the dust storage box 3, the cleaning is completed, and the using process of the chalk erasing device for teaching of the English teacher of the whole university is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a device is erased with chalk to college english mr teaching, includes panel (1), anti-return mechanism (5) and brush hair (8), its characterized in that: protruding (2) are installed to the lower surface intermediate position of panel (1), and the below of panel (1) is provided with dust storage box (3), the outside of dust storage box (3) is connected with protection casing (4), anti-return mechanism (5) are installed in the lower surface intermediate position of dust storage box (3), and the lower extreme of anti-return mechanism (5) is connected with pipeline (12), the internally mounted of pipeline (12) has air suction pump (6), and the lower extreme opening part of pipeline (12) is fixed with backup pad (7), brush hair (8) evenly set up in the lower surface of backup pad (7), storage battery (9) are installed to the left and right sides lower surface symmetry of dust storage box (3), and the below of storage battery (9) is provided with coupling assembling (10), the below of coupling assembling (10) evenly is provided with mopping strip (11).

2. The chalk eraser device for teaching college english teacher according to claim 1, characterized in that: the upper surface of panel (1) is provided with the burr, and the burr is along the horizontal cross axle direction evenly distributed of panel (1).

3. The chalk eraser device for teaching college english teacher according to claim 1, characterized in that: the lower surface of panel (1) has seted up the draw-in groove, and stores up dirt box (3) and pass through draw-in groove and panel (1) joint to the upper surface intermediate position of storing up dirt box (3) is seted up flutedly, and closely laminating between simultaneously storing up dirt box (3) through recess and arch (2).

4. The chalk eraser device for teaching college english teacher according to claim 1, characterized in that: the backflow prevention mechanism (5) comprises a baffle (501), an elastic traction rope (502) and a fixed cross bar (503), the baffle (501) is arranged at the opening of the upper end of the pipeline (12), the lower surface of the baffle (501) is connected with the right end of the elastic traction rope (502), and the other end of the elastic traction rope (502) is fixed with the fixed cross bar (503).

5. The chalk eraser device for teaching college english teacher according to claim 1, characterized in that: round holes are formed in the supporting plate (7) and are distributed with the bristles (8) at equal intervals.

6. The chalk eraser device for teaching college english teacher according to claim 1, characterized in that: the connecting assembly (10) comprises a burling patch (101) and a round hair patch (102), the round hair patch (102) is fixed on the upper surface of the cloth wiping strip (11), and the burling patch (101) is bonded above the round hair patch (102).