CN209616743U

CN209616743U - A kind of roll-type dust-free black board eraser

Info

Publication number: CN209616743U
Application number: CN201822044891.7U
Authority: CN
Inventors: 杜广夫; 司秀红
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-06
Filing date: 2018-12-06
Publication date: 2019-11-12
Anticipated expiration: 2028-12-06

Abstract

The utility model discloses a kind of roll-type dust-free black board erasers, including shell, brush roll and motor, the lower part of the shell is provided with mounting groove, implanting has bristle on the circumferential surface of the brush roll, brush roll is set in the mounting groove, and the bristle of brush roll lower part exposes mounting groove, the both ends of brush roll are rotatablely connected by the shell of coaxial shaft and corresponding end respectively, the motor is connect with brush roll, to drive brush roll to rotate, the top of the shell is provided with dust catcher interface, the bristle forms a plurality of spiral swipe on the circumferential surface of brush roll, it is left in brush roll, right two sections of spiral swipe is arranged in mirror symmetry, dust storage chamber is provided in mounting groove, the dust storage chamber is big in lower openings, the small taper of upper opening, the lower openings of dust storage chamber are set to the surface of the brush roll, the upper opening of dust storage chamber and the suction Dirt device interface connects.The utility model improves the efficiency that dust catcher siphons away chalk dust, chalk dust can be effectively prevent to leak out.

Description

A kind of roll-type dust-free black board eraser

Technical field

The utility model relates to realia technical fields, more particularly to a kind of roll-type dust-free black board eraser.

Background technique

In daily study, blackboard and blackboard eraser are indispensable educational aids, and ordinary blackboard eraser is by substrate and hair Felt fiber etc. is made, and ordinary blackboard eraser in the letter written with chalk on erasing blackboard is easy that chalk dust is made to exist with the movement of blackboard eraser It is flown upward everywhere in air, not only pollutes environment, but also be detrimental to health.

Chinese utility model patent specification CN204801344U discloses a kind of teaching grey chalkboard eraser of suction, the chalk sassafras It is main including chalkboard eraser ontology, motor, belt roller hairbrush roll shaft and micro-cleaner, when work, the rotation of motor driven roll shaft, And then wiped the letter written with chalk on blackboard by roller hairbrush, the chalk dust of roller hairbrush erasing is inhaled into micro-cleaner, thus It can prevent chalk dust from flying upward everywhere.

However, the roller hairbrush of the chalkboard eraser is in erasing chalk word, roller hairbrush can stir chalk dust in chalkboard eraser ontology Unordered to fly upward, chalk dust is easy to leak out out of chalkboard eraser ontology, and chalk dust leaks out in order to prevent, it is necessary to increase the function of dust catcher Rate will increase the cost and energy consumption of chalkboard eraser in this way；Also, letter written with chalk is mainly wiped by the friction between roller hairbrush and blackboard It removes, for roller hairbrush because friction can gradually fall off, roller hairbrush needs regular replacement.

Utility model content

For the defects in the prior art, the utility model provides a kind of roll-type dust-free black board eraser, to improve dust catcher The efficiency for siphoning away chalk dust, prevents chalk dust from leaking out.

The utility model provides a kind of roll-type dust-free black board eraser, including shell, brush roll and motor, under the shell Portion is provided with mounting groove, and implanting has bristle on the circumferential surface of the brush roll, and brush roll is set in the mounting groove, and under brush roll The bristle in portion exposes mounting groove, and the both ends of brush roll are rotatablely connected by the shell of coaxial shaft and corresponding end respectively, described Motor is connect with brush roll, and to drive brush roll to rotate, the top of the shell is provided with dust catcher interface, and the bristle is in hair Form a plurality of spiral swipe on the circumferential surface of brush roll, left and right two sections of spiral swipe is arranged in mirror symmetry in brush roll, mounting groove It is inside provided with dust storage chamber, the dust storage chamber is set to institute in the taper that lower openings are big, upper opening is small, the lower openings of dust storage chamber The surface of brush roll is stated, the upper opening of dust storage chamber connects with the dust catcher interface.

When using the roll-type dust-free black board eraser erasing chalk word, the sweep-up pipe of dust catcher is connected with dust catcher interface, motor Brush roll rotation is driven, the bristle of brush roll lower part is contacted with the letter written with chalk on blackboard, and then by bristle erasing blackboard Letter written with chalk, since left and right two sections in brush roll of spiral swipes are arranged in mirror symmetry, when brush roll rotates, chalk dust is in spiral shell Gathered under the action of rotation swipe from both ends to centre, additionally, due to dust storage chamber is in the taper that lower openings are big, upper opening is small, Chalk dust imports sweep-up pipe along the inner wall of dust storage chamber, in this way, to enter sweep-up pipe more orderly for chalk dust, improve dust catcher and siphons away The efficiency of chalk dust can effectively prevent chalk dust to leak out.

Further, motor room is provided in the mounting groove, the motor room is separated by partition and the dust storage chamber, The motor is mounted in motor room.Motor room is isolated with dust storage chamber by partition, chalk dust can be prevented to the work of motor It impacts.

Further, the output shaft of the motor is coaxially installed with driving wheel, coaxial in the shaft of described brush roll one end Driven wheel is installed, the driving wheel and driven wheel are all set in the outside of the shell, pass through between driving wheel and driven wheel Belt connection, shell are externally connected with the clamshell covered on outside the driving wheel, driven wheel and belt.

Further, the top of the shell is connected with handle, and the handle is tubular structure, the fixing end of the handle It is connected to the dust storage chamber, the free end of handle is arranged in the dust catcher interface.Using such design, dust suction can be reduced The influence that uses of the pipe to blackboard eraser.

Further, the lower end of the shell offers multiple sliding slots along the vertical direction, is provided with one in each sliding slot The flexible rolling foot of group, the flexible rolling foot includes ball base, spring and ball, and the ball base is slidably mounted in the sliding slot, For the spring supporting between the upper end and sliding slot of ball base, the ball is mounted on the lower end of ball base.It is flexible by being arranged Roll foot, be adjusted when erasing the board brush roll between blackboard at a distance from, convenient for adjusting the dynamics that erases the board.

Further, the inner end of the spiral swipe is equipped with spiral strip, and spiral strip is made of elastic material, described Brush roll includes roll shaft and the woollen brush base that is set on the roll shaft, is provided with and the spiral on the circumferential surface of the woollen brush base The width for being caught in mouth of the spiral channel of strip adaptation, the spiral channel narrows, and the spiral strip is connected to the spiral In card slot.If the abrasion of spiral strip or damage, it is only necessary to spiral swipe is replaced, without carrying out entirety more together with brush roll It changes, and then greatly reduces maintenance, maintenance cost, and replace spiral swipe and can be completed without removing brush roll, replaced Journey is simple, and replacement speed is fast.

Further, the spiral strip is made of rubber material.

Further, the woollen brush base is equipped with more by multiple woollen brush base monomer compositions, the both ends of each woollen brush base monomer A fixture block, multiple fixture blocks are arranged along the circumferential array of the woollen brush base monomer, form card slot between adjacent two fixture block, Card slot on the adjacent two woollen brush base monomer is arranged in a one-to-one correspondence and is fastened with fixture block, positioned at the roll shaft both ends Woollen brush base monomer is fixed by screws on roll shaft.Using such design, woollen brush base assembling is simple, flexible, quick, is able to satisfy The demand of various operating conditions, and convenient processing and manufacture only need to change the woollen brush base of failure area if woollen brush base damages, and reduce Maintenance, maintenance cost.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Attached drawing needed in specific embodiment is briefly described.In all the appended drawings, similar device or part are general It is identified by similar appended drawing reference.In attached drawing, each device or part might not be drawn according to actual ratio.

Fig. 1 is the structural schematic diagram of the utility model embodiment；

Fig. 2 is the structural schematic diagram of the woollen brush base monomer of the utility model embodiment.

In attached drawing, 1 indicates shell；101 indicate mounting groove；102 indicate dust storage chamber；103 indicate motor room；104 indicate every Plate；2 indicate brush roll；201 indicate roll shaft；202 indicate woollen brush base；203 indicate spiral channel；204 indicate fixture block；205 indicate Card slot；206 indicate screw；3 indicate motor；4 indicate bristle；401 indicate spiral strip；5 indicate dust catcher interface；6 indicate master Driving wheel；7 indicate driven wheel；8 indicate belt；9 indicate clamshell；10 indicate handle；11 indicate sliding slot；12 indicate ball base；13 tables Show spring；14 indicate ball.

Specific embodiment

It is described in detail below in conjunction with embodiment of the attached drawing to technical solutions of the utility model.Following embodiment is only For clearly illustrating the technical solution of the utility model, therefore it is only used as example, and cannot be used as a limitation limitation this patent Protection scope.

As depicted in figs. 1 and 2, the utility model embodiment provides a kind of roll-type dust-free black board eraser, including shell 1, hair Brush roll 2 and motor 3, the lower part of shell 1 are provided with mounting groove 101, and implanting has bristle 4 on the circumferential surface of brush roll 2, and bristle 4 is in hair Form a plurality of spiral swipe on the circumferential surface of brush roll 2, left and right two sections of spiral swipe is arranged in mirror symmetry in brush roll 2, hairbrush Roller 2 is set in mounting groove 101, and the bristle 4 of 2 lower part of brush roll exposes mounting groove 101, and the both ends of brush roll 2 pass through together respectively The shaft of axis and the shell 1 of corresponding end are rotatablely connected.

Specifically, the inner end of the spiral swipe of the present embodiment is equipped with spiral strip 401, and spiral strip 401 is using such as rubber Elastomeric material is made, and brush roll 2 includes roll shaft 201 and the woollen brush base 202 being set on roll shaft 201, the week of woollen brush base 202 The spiral channel 203 being adapted to spiral strip 401 is provided on face, the width for being caught in mouth of spiral channel 203 narrows, spiral card Item 401 is connected in spiral channel 203, if the abrasion of spiral strip 401 or damage, it is only necessary to replace spiral swipe, be not necessarily to Integral replacing is carried out together with brush roll 2, and then greatly reduces maintenance, maintenance cost, and replaces spiral swipe and is not necessarily to hairbrush Roller 2, which removes, can be completed, and replacement process is simple, and replacement speed is fast.Also, woollen brush base 202 is by multiple woollen brush base monomer compositions, often The both ends of a woollen brush base monomer are equipped with multiple fixture blocks 204, and multiple fixture blocks 204 are arranged along the circumferential array of woollen brush base monomer, phase Card slot 205 is formed between adjacent two fixture blocks 204, the card slot 205 and fixture block 204 on adjacent two woollen brush bases monomer are arranged in a one-to-one correspondence simultaneously It is fastened, the woollen brush base monomer positioned at 201 both ends of roll shaft is fixed on roll shaft 201 by screw 206, in this way, woollen brush base 202 assemblings are simple, flexible, quick, are able to satisfy the demand of various operating conditions, and convenient processing and manufacture, if woollen brush base 202 damages, only The woollen brush base 202 for needing to change failure area, reduces maintenance, maintenance cost.

Dust storage chamber 102 and motor room 103, the big, upper opening in lower openings of dust storage chamber 102 are provided in mounting groove 101 Small taper, the lower openings of dust storage chamber 102 are set to the surface of brush roll 2, and upper opening and the dust catcher of dust storage chamber 102 connect Mouth 5 connects.

Motor room 103 is separated by partition 104 and dust storage chamber 102, and motor 3 is mounted in motor room 103, can prevent in this way Only chalk dust impacts the work of motor 3.Motor 3 is connect with brush roll 2, to drive brush roll 2 to rotate, specifically, electricity The output shaft of machine 3 is coaxially installed with driving wheel 6, is coaxially installed with driven wheel 7 in the shaft of 2 one end of brush roll, driving wheel 6 and from Driving wheel 7 is all set in the outside of shell 1, is connected between driving wheel 6 and driven wheel 7 by belt 8, shell 1, which is externally connected with, to be covered on Clamshell 9 outside driving wheel 6, driven wheel 7 and belt 8.

The top of shell 1 is provided with dust catcher interface 5, and the top of shell 1 is connected with handle 10, and handle 10 is tubulose knot The fixing end of structure, handle 10 is connected to dust storage chamber 102, and the free end of handle 10 is arranged in dust catcher interface 5, can reduce dust suction The influence that uses of the pipe to blackboard eraser.

The lower end of shell 1 offers multiple sliding slots 11 along the vertical direction, and one group of flexible rolling is provided in each sliding slot 11 Foot, the rolling foot that stretches includes ball base 12, spring 13 and ball 14, and ball base 12 is slidably mounted in sliding slot 11, and spring 13 supports Between the upper end and sliding slot 11 of ball base 12, ball 14 is mounted on the lower end of ball base 12, by the way that flexible rolling foot is arranged, is wiping The distance between brush roll 2 and blackboard are adjusted when blackboard, convenient for adjusting the dynamics to erase the board.

When using the roll-type dust-free black board eraser erasing chalk word, the sweep-up pipe of dust catcher is connected with dust catcher interface 5, motor 3 drive brush roll 2 to rotate, and the bristle 4 in brush roll 2 is contacted with the letter written with chalk on blackboard, and then by 4 erasing blackboard of bristle Letter written with chalk, due to left and right two sections in brush roll 2 of spiral swipes in mirror symmetry be arranged, brush roll 2 rotate when, chalk dust Gathered under the action of spiral swipe from both ends to centre, additionally, due to which dust storage chamber 102 is big in lower openings, upper opening is small Taper, chalk dust imports sweep-up pipe along the inner wall of dust storage chamber 102, in this way, to enter sweep-up pipe more orderly for chalk dust, improves Dust catcher siphons away the efficiency of chalk dust, chalk dust can be effectively prevent to leak out.

Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations； Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should manage Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of skills Art feature is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution the utility model The range of each embodiment technical solution should all cover in the claim of the utility model and the range of specification.

Claims

1. a kind of roll-type dust-free black board eraser, including shell, brush roll and motor, the lower part of the shell are provided with mounting groove, institute Stating implanting on the circumferential surface of brush roll has bristle, and brush roll is set in the mounting groove, and the bristle of brush roll lower part exposes installation Slot, the both ends of brush roll are rotatablely connected by the shell of coaxial shaft and corresponding end respectively, and the motor is connect with brush roll, To drive brush roll to rotate, the top of the shell is provided with dust catcher interface, it is characterised in that:

The bristle forms a plurality of spiral swipe on the circumferential surface of brush roll, and left and right two sections of spiral swipe is in mirror in brush roll As being symmetrical arranged, dust storage chamber is provided in mounting groove, the dust storage chamber is in the taper that lower openings are big, upper opening is small, dust The lower openings of room are set to the surface of the brush roll, and the upper opening of dust storage chamber connects with the dust catcher interface.

2. roll-type dust-free black board eraser according to claim 1, it is characterised in that: it is provided with motor room in the mounting groove, The motor room is separated by partition and the dust storage chamber, and the motor is mounted in motor room.

3. roll-type dust-free black board eraser according to claim 2, it is characterised in that: the output shaft of the motor is coaxially installed with Driving wheel, driven wheel is coaxially installed in the shaft of described brush roll one end, and the driving wheel and driven wheel are all set in described The outside of shell, between driving wheel and driven wheel by belt connect, shell be externally connected with cover on the driving wheel, driven wheel and Clamshell outside belt.

4. roll-type dust-free black board eraser according to claim 1, it is characterised in that: the top of the shell is connected with handle, The handle is tubular structure, and the fixing end of the handle is connected to the dust storage chamber, and the dust catcher interface is arranged in handle Free end.

5. roll-type dust-free black board eraser according to claim 1, it is characterised in that: open along the vertical direction the lower end of the shell Equipped with multiple sliding slots, one group of flexible rolling foot is provided in each sliding slot, the flexible rolling foot includes ball base, spring and rolling Pearl, the ball base are slidably mounted in the sliding slot, and the spring supporting is between the upper end and sliding slot of ball base, the rolling Pearl is mounted on the lower end of ball base.

6. roll-type dust-free black board eraser according to claim 1, it is characterised in that: the inner end of the spiral swipe is equipped with spiral Strip, spiral strip are made of elastic material, and the brush roll includes roll shaft and the woollen brush base that is set on the roll shaft, The spiral channel being adapted to the spiral strip, the width for being caught in mouth of the spiral channel are provided on the circumferential surface of the woollen brush base Degree narrows, and the spiral strip is connected in the spiral channel.

7. roll-type dust-free black board eraser according to claim 6, it is characterised in that: the spiral strip uses rubber material system At.

8. roll-type dust-free black board eraser according to claim 6, it is characterised in that: the woollen brush base is by multiple woollen brush base monomers Composition, the both ends of each woollen brush base monomer are equipped with multiple fixture blocks, circumferential battle array of multiple fixture blocks along the woollen brush base monomer Column are arranged, and form card slot between adjacent two fixture block, and the card slot on the adjacent two woollen brush base monomer and fixture block correspond It is arranged and is fastened, the woollen brush base monomer positioned at the roll shaft both ends is fixed by screws on roll shaft.