CN218084873U

CN218084873U - Blackboard eraser for collecting dirty surfaces

Info

Publication number: CN218084873U
Application number: CN202221662726.8U
Authority: CN
Inventors: 许林锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-12-20
Anticipated expiration: 2032-06-30

Abstract

The utility model relates to a collect blackboard eraser of dirty face, which comprises a housing, be provided with the installation cavity and the dirty cloth collection chamber of roll-like wiper in the housing, the opening part of installation cavity is provided with the apron that can overturn, the apron is kept away from the dirty cloth and is collected the gap that has between the one end in chamber and the shroud and be used for the wiper to penetrate, dirty cloth is collected the intracavity and is rotated and is connected with the plate piece of wiping that is used for coiling the wiper and has a plurality of working faces, wipe plate piece and dirty cloth collection chamber releasable connection. After the blackboard eraser is wiped, dirty surfaces of the blackboard eraser can be collected, and the fact that clean surfaces are in contact with the blackboard surface when the blackboard eraser is wiped next time is guaranteed.

Description

Blackboard eraser for collecting dirty surfaces

Technical Field

The utility model relates to a collect blackboard eraser of dirty face.

Background

The blackboard and the blackboard eraser are indispensable teaching tools in teaching work, and the blackboard eraser can be used for erasing writing on the blackboard and can be used for repeatedly writing and erasing on the blackboard. However, the blackboard eraser or whiteboard eraser used in daily teaching or training cannot overcome the defects of much dust, easy dirtiness, short service life and frequent replacement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collect blackboard eraser of dirty face, this blackboard eraser is cleaning the back, can collect the dirty face of blackboard eraser, is clean face and face contact when guaranteeing to clean next time.

The technical scheme of the utility model lies in: the utility model provides a collect blackboard eraser of dirty face, includes the housing, be provided with the installation cavity and the dirty cloth collection chamber of roll-like wiper in the housing, the opening part of installation cavity is provided with the apron that can overturn, the gap that is used for the wiper to penetrate has between the one end that the dirty cloth was collected to the apron was kept away from and the housing cap, dirty cloth is collected the intracavity and is rotated and be connected with the piece of wiping that is used for coiling the wiper and has a plurality of working faces, wipe board and dirty cloth collection chamber releasable connection.

Further, the cover plate is rotatably connected with the installation cavity, and an overturning limiting mechanism of the cover plate is arranged in the installation cavity.

Further, rotate stop gear including setting up in the arc spacing groove of installation cavity both sides wall, the apron is close to the tip both sides in dirty cloth collection chamber and is provided with the first locating part that stretches into the arc spacing groove respectively.

Furthermore, the one end both sides that the apron is close to the gap all are provided with the fixture block that makes progress the arch and lie in the housing both sides, the medial surface and the housing interference fit of fixture block, the housing is close to the gap side and is provided with the breach of dodging that is used for the flip apron.

Further, the both sides wall in dirty cloth collection chamber all is provided with the mounting groove that the pivot card that is used for wiping the plate is gone into, be provided with the anti-drop buckle of wiping the plate on the mounting groove, dirty cloth collection intracavity still sets up the restriction and wipes the rotatory stop gear of plate free rotation.

Further, the anti-drop buckle is including setting up in the draw-in groove that dirty cloth collection chamber lateral wall and be linked together with the mounting groove, set up in the draw-in groove in the second locating part with pivot arc surface looks butt.

Furthermore, the rotary limiting mechanism comprises third limiting parts which are arranged on two side walls of the dirty cloth collecting cavity and protrude out of the dirty cloth collecting cavity, and avoidance concave parts which are the same as the number of the working surfaces and matched with the third limiting parts are arranged at two ends of the wiping plate part.

Furthermore, the section of the wiping plate piece is polygonal to form a plurality of working faces, and a shell used for fixing one end of the wiping cloth is sleeved outside the wiping plate piece.

Furthermore, the cover shell is provided with an inverted U-shaped connecting frame with two side plates rotatably connected with the cover shell, two side ends of the cover plate are rotatably connected with two side plates of the connecting frame, the connecting frame is rotatably connected with a handle rod, and the cover cap is provided with a rotating clamping structure of the connecting frame.

Furthermore, the rotary clamping structure comprises clamping convex parts arranged at the lower ends of the two side plates of the connecting frame, a clamping gap for the clamping convex parts to sink in is arranged on the cover cap, and an avoiding channel for the rotation of the clamping convex parts is arranged on the inner side wall of the mounting cavity; the both sides wall of housing still is provided with outside arch respectively and is used for the link to rotate the back card position piece that blocks the link.

Compared with the prior art, the utility model has the advantages of it is following: after the blackboard eraser is wiped, dirty surfaces of the blackboard eraser can be collected, and the clean surfaces are ensured to be contacted with the board surface in the next wiping. Meanwhile, the installation is more convenient, and cleaning cloth does not need to be wound manually during installation; nor do drive wheels.

Drawings

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

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the exploded view of the present invention;

FIG. 4 is a schematic view of the cover plate of the present invention;

FIG. 5 is a schematic view of the present invention showing the installation of the wipe;

FIG. 6 is a schematic view of the dirty cloth collecting process of the present invention;

FIG. 7 is a schematic structural view of the universal handle mounted on the eraser of the present invention (the first station state);

FIG. 8 is a schematic view of the connecting frame of the present invention;

FIG. 9 is a schematic view of the universal handle of the present invention in a second state;

FIG. 10 is a schematic structural view of a mop rotating mop plate assembly formed in accordance with the present invention;

in the figure: 1-rolled wiping cloth 10, a housing 11, an installation cavity 12, a dirty cloth collection cavity 13, an arc-shaped limiting groove 14, an avoidance gap 15, an installation groove 16, a clamping groove 17, a clamping gap 18, an avoidance channel 19, a clamping member 20, a cover plate 21, a gap 22, a first limiting member 23, a clamping block 30, a wiping plate member 31, an avoidance concave part 32, a housing 33, a rotating shaft 40, a second limiting member 50, a third limiting member 60, a connecting frame 61, a handle rod 62 and a clamping convex part.

Detailed Description

In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.

Refer to fig. 1 to 10

The utility model provides a collect blackboard eraser of dirty face, includes housing 10, separate for the installation cavity 11 that is used for placeeing roll-like wiper 1 and collect dirty cloth collection chamber 12 of dirty cloth through the baffle in the housing, the opening part of installation cavity is provided with apron 20 that can overturn, the apron is kept away from between the one end that dirty cloth collection chamber and the housing and is had the gap 21 that is used for the wiper to penetrate, dirty cloth collection intracavity rotates and is connected with the wiping board piece 30 that is used for coiling the wiper and has a plurality of working faces, wiping board piece and dirty cloth collection chamber releasable connection conveniently wipe the dismouting of board piece to wipe the wiper after will collecting and change. One working surface of the wiping plate is flush with the lower side surface of the cover plate under the normal state of the wiping plate so that the wiping cloth covering the lower side surface of the cover plate and the working surface of the wiping plate can be in contact with the wiping surface, and then the other working surface of the wiping plate is rotated to be parallel to the wiping surface, so that a dirty surface collecting process is completed, and the clean surface is in contact with the wiping surface.

In this embodiment, in order to facilitate installation of the rolled wiping cloth, the cover plate is rotatably connected with the installation cavity, and an overturning limiting mechanism of the cover plate is arranged in the installation cavity, so that the overturning angle of the cover plate is limited, and the cover plate and the housing are clamped or loosened.

In this embodiment, for better upset is spacing, rotate stop gear including setting up in the arc spacing groove 13 of installation cavity both sides wall, the apron is close to the tip both sides in dirty cloth collection chamber and is provided with the first locating part 22 that stretches into the arc spacing groove respectively, first locating part be with apron integrated into one piece's working of plastics, for example semi-circular convex button, perhaps bulb plunger.

In this embodiment, the height of the partition is less than that of the cover, and the end of the cover plate close to the dirty cloth collecting cavity after being lifted can abut against the partition, so as to further limit the cover plate from turning over.

In this embodiment, in order to better clamp or loosen the cover plate, the side wall of the arc-shaped limiting groove is an inclined surface, so that clamping is realized when the cover plate covers the opening of the installation cavity, and a loosening state is realized when the cover plate is opened.

In this embodiment, in order to better realize that the clamping of apron is realized after apron closing cap installation cavity opening, the apron is close to the one end both sides in gap and all is provided with the fixture block 23 that makes progress protruding and be located the housing both sides, the medial surface and the housing interference fit of fixture block. An avoidance notch 14 for turning up the cover plate is arranged on the side, close to the gap, of the housing, so that the cover plate can be turned up through the avoidance notch.

In this embodiment, the lower surface of the cover plate is provided with longitudinal grooves at intervals along the transverse direction so as to prevent the wiping cloth from slipping.

In this embodiment, in order to realize the dismantlement of wiping the plate, the both sides wall in dirty cloth collection chamber all is provided with the mounting groove 15 that the pivot 33 card that is used for wiping the plate is gone into, be provided with the anti-drop buckle of wiping the plate on the mounting groove, dirty cloth collection intracavity still sets up the restriction and wipes the rotatory stop gear of plate free rotation.

In this embodiment, the anti-falling buckle includes a clamping groove 16 that is arranged on the dirty cloth collecting cavity side wall and is communicated with the mounting groove, a second limiting member 40 that is abutted against the rotating shaft arc surface is arranged in the clamping groove, and the second limiting member is a plastic member integrally formed with the cover cap, such as a semicircular convex button or a ball plunger, so that the width of the mounting clamping groove is partially reduced through the second limiting member, the rotating shaft of the wiping plate body is clamped, and the wiping plate is prevented from falling off.

In this embodiment, in order to better limit the free rotation of the wiping plate, the rotation limiting mechanism includes third limiting members 50 disposed on two side walls of the dirty cloth collecting cavity and protruding, and two ends of the wiping plate are both provided with avoidance concave portions 31 having the same number as the working surfaces and matching with the third limiting members, so that the third limiting members are clamped into the avoidance concave portions to block the free rotation of the wiping plate, and the rotation of the wiping plate is realized after the rotation force is applied externally.

In this embodiment, in order to complete collection of the wiping cloth after wiping the wiping surface, the transverse section of the wiping plate member is polygonal to form a plurality of working surfaces, and preferably, the transverse section is triangular or quadrangular.

In this embodiment, in order to more conveniently separate the dirty cloth from the working surface of the wiping board body, a disposable shell 32 for fixing one end of the wiping cloth is arranged outside the wiping board body. When discarded, the dirty cloth is discarded along with the outer shell. The inner shape of the wiping plate body is a concave deformation state which can be pinched by hand, so that the shell can be separated conveniently.

In this embodiment, a hook and loop fastener may be disposed on one or each surface of the housing to hook an end of the wiper, and the wiper may be driven to wind around the housing when the wiper plate rotates.

In this embodiment, in order to facilitate the use of the eraser as a mop, the covering shell is provided with an inverted U-shaped connecting frame 60 with two side plates rotatably connected with the covering shell, two side ends of the covering plate are rotatably connected with two side plates of the connecting frame, and the connecting frame is rotatably connected with a handle rod 61, thereby forming a universal handle and connecting rod pieces. The cover is provided with a rotary clamping structure of the connecting frame, so that the connecting frame can be rotated to different works to drive the blackboard eraser to work.

In this embodiment, the rotary clamping structure includes clamping convex portions 62 arranged at the lower ends of the two side plates of the connecting frame, and the cover is provided with clamping notches 17 for the clamping convex portions to sink into, so that the connecting frame is limited on the first station; in order to provide the direction for the rotation of screens convex part when the link revolutes the position rotation of rotating the connection and gives way, the inside wall of installation cavity is provided with and is used for the rotatory channel 18 of dodging of screens convex part, the both sides wall of housing still is provided with outside bellied screens piece 19 respectively to block the link after the link is rotatory to the second station, avoid the link free rotation. Meanwhile, the lock can be separated from the clamping piece after a certain external force is applied.

The specific working principle of the blackboard eraser is as follows:

installing a wiping cloth: the blackboard eraser is inverted, the cover body is opened, the rolled wiping cloth is placed, one end of the rolled wiping cloth is pulled out and fixed on the working surface of the right eraser body, and then the double-sided winding is achieved by rotating the eraser body.

Dirty cloth collection: the wiping piece is vertically contacted with the wiping surface, namely the surface of the wiping piece, which faces outwards, is contacted with the wiping surface, and then the housing is rotated to be parallel to the wiping surface, so that a dirty surface collecting process is completed, and the clean surface is contacted with the wiping surface.

Removing dirty cloth: the wiper member may be disengaged from the housing and the soiled cloth removed from the wiper member. In order to more conveniently separate the dirty cloth from the wiping board element, a disposable shell is arranged outside the wiping board element. When discarded, the dirty cloth is discarded along with the outer shell.

Where the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims

1. The blackboard eraser for collecting dirty surfaces comprises a housing and is characterized in that a mounting cavity of rolled wiping cloth and a dirty cloth collecting cavity are arranged in the housing, an overturning cover plate is arranged at an opening of the mounting cavity, a gap for the wiping cloth to penetrate is formed between one end, far away from the dirty cloth collecting cavity, of the cover plate and a cover cap, a wiping plate member used for winding the wiping cloth and provided with a plurality of working surfaces is rotatably connected in the dirty cloth collecting cavity, and the wiping plate member is detachably connected with the dirty cloth collecting cavity.

2. The blackboard eraser for collecting dirty surfaces as claimed in claim 1, wherein the cover plate is rotatably connected with a mounting cavity, and a turnover limiting mechanism of the cover plate is arranged in the mounting cavity.

3. The blackboard eraser for collecting dirty surfaces as claimed in claim 2, wherein the flip limiting mechanism includes arc limiting grooves disposed on two side walls of the installation cavity, and two sides of the end portion of the cover plate close to the dirty cloth collecting cavity are respectively provided with a first limiting member extending into the arc limiting grooves.

4. The blackboard eraser for collecting dirty surfaces as claimed in claim 1, 2 or 3, wherein the cover plate is provided with upwardly protruding blocks at both sides of one end thereof close to the gap and at both sides of the cover shell, the inner side surfaces of the blocks are in interference fit with the cover shell, and the cover shell is provided with an avoiding notch for turning up the cover plate at the side close to the gap.

5. The blackboard eraser for collecting dirty surfaces as claimed in claim 1, 2 or 3, wherein mounting grooves for clamping the rotating shaft of the eraser member are formed in both side walls of the dirty cloth collecting cavity, an anti-falling buckle of the eraser member is arranged on the mounting grooves, and a rotation limiting mechanism for limiting the eraser member to rotate freely is further arranged in the dirty cloth collecting cavity.

6. The blackboard eraser for collecting dirty surfaces as claimed in claim 5, wherein the anti-falling buckle comprises a slot disposed on the sidewall of the dirty cloth collecting cavity and communicating with the mounting groove, and a second limiting member disposed inside the slot and abutting against the arc surface of the rotating shaft.

7. The blackboard eraser for collecting dirty surfaces as claimed in claim 5, wherein the rotation limiting mechanism includes third limiting members protruding from two sidewalls of the dirty cloth collecting cavity, and the two ends of the eraser member are each provided with an avoiding recess having the same number as the working surfaces and matching with the third limiting members.

8. A dirty-surface collecting eraser according to claim 1, wherein the cross-section of the eraser member is polygonal to form a plurality of working surfaces, and a housing is provided around the eraser member for holding one end of the eraser cloth.

9. The blackboard eraser capable of collecting dirty surfaces as claimed in claim 1, wherein the case is provided with an inverted U-shaped connecting frame with two side plates rotatably connected with the case, two side ends of the cover plate are rotatably connected with two side plates of the connecting frame, the connecting frame is rotatably connected with a handle rod, and the cover cap is provided with a rotating position-locking structure of the connecting frame.

10. The blackboard eraser for collecting dirty surfaces as claimed in claim 9, wherein the rotation locking structure includes locking protrusions disposed at lower ends of two side plates of the connecting frame, the cover is provided with locking notches for the locking protrusions to sink into, and the inner side wall of the mounting cavity is provided with an avoiding channel for the locking protrusions to rotate; the both sides wall of housing still is provided with outside arch respectively and is used for the link to rotate the back card position piece that blocks the link.