CN212422669U - Blackboard eraser with long service life - Google Patents

Abstract

The utility model discloses a long service life's blackboard eraser, including connecting plate, casing and connecting block, the bottom fixedly connected with connecting block of casing, and the bottom fixedly connected with connecting plate of connecting block, the inside of connecting plate is provided with the magnetic path, the bottom fixedly connected with dismouting structure of connecting plate. The utility model discloses an inside at the connecting plate is provided with the dismouting structure, be provided with the joint groove in the inside of connecting plate during the use, the internally mounted in joint groove has the magic to paste the sticky surface, can tear the magic of the inside setting of cleaning cotton when needing to clean the inside cleaning cotton of blackboard eraser during the use and paste the slippery surface and the magic and paste the sticky surface and leave, accomplish the dismouting between cleaning cotton and the connecting plate, be convenient for carry out the dismouting to cleaning cotton and wash, paste the slippery surface with the magic again and paste the sticky surface bonding completion installation after the cleanness is accomplished, make the clean cotton repeatedly usable of setting up in the blackboard eraser through this setting, it is more convenient that the dismouting is changed.

Description

Blackboard eraser with long service life

Technical Field

The utility model relates to a blackboard eraser technical field specifically is a long service life's blackboard eraser.

Background

The blackboard eraser is one of the indispensable teaching appliances who uses on the teaching classroom in the campus, can clean the chalk typeface on the blackboard and clean, the repeated writing of being convenient for utilizes, clean convenient blackboard eraser of change to clean cotton when needing a kind of use now, but current blackboard eraser has many problems or defects:

the traditional blackboard eraser accumulates a large amount of chalk dust by using internal cleaning cotton for a long time, the wiping effect is influenced, the cleaning process of the internal cleaning cotton of the blackboard eraser is inconvenient, and the board body is easily damaged in the cleaning process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a long service life's blackboard eraser to solve the inconvenient problem of dismantling the inside clean cotton of blackboard eraser that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a long service life's blackboard eraser, includes connecting plate, casing and connecting block, the bottom fixedly connected with connecting block of casing, and the bottom fixedly connected with connecting plate of connecting block, the inside of connecting plate is provided with the magnetic path, the bottom fixedly connected with dismouting structure of connecting plate, and the dismouting structure includes joint groove, magic tape adhesion surface, magic tape slip surface, clean cotton and abrasionproof loss grained layer, the inside of connecting plate is provided with the joint groove, and the inside in joint groove is provided with magic tape adhesion surface, magic tape adhesion surface's bottom is pasted and is had magic tape slip surface, and the bottom fixedly connected with of magic tape slip surface clean cotton, four corners of casing are provided with protective structure.

Preferably, both ends of the shell are provided with grooves, and the grooves are symmetrically distributed at both ends of the shell.

Preferably, be provided with the rubber layer on the lateral wall of casing, and the rubber layer is even parcel on the lateral wall of casing.

Preferably, protective structure includes protection pad, adhesive layer and foam buffering granule, the protection pad has all been wrapped up in four corners of casing, and is provided with the adhesive layer on the inside wall of protection pad, the protection pad passes through the setting and the casing bonding of adhesive layer.

Preferably, the protection pad is internally provided with foam buffering particles, and the foam buffering particles are uniformly filled in the protection pad.

Preferably, be provided with the abrasionproof decreases the grained layer on clean cotton's the lateral wall, and the abrasionproof decreases the grained layer and is evenly distributed on clean cotton's lateral wall.

Compared with the prior art, the beneficial effects of the utility model are that: this long service life's blackboard eraser is rational in infrastructure, has following advantage:

(1) the disassembly and assembly structure is arranged in the connecting plate, the clamping groove is formed in the connecting plate when the disassembly and assembly structure is used, the magic tape adhesive surface is arranged in the clamping groove, when cleaning cotton in the blackboard eraser is needed to be cleaned during use, the magic tape sliding surface and the magic tape adhesive surface which are arranged in the cleaning cotton can be torn away, disassembly and assembly between the cleaning cotton and the connecting plate are completed, the cleaning cotton is convenient to disassemble, assemble and clean, the magic tape sliding surface and the magic tape adhesive surface are adhered to complete installation after cleaning is completed, the cleaning cotton arranged in the blackboard eraser can be repeatedly used through the disassembly and assembly, and the disassembly, the assembly and the replacement are more convenient;

(2) the protective structures are arranged at the four corners of the shell, the rubber layers are arranged on the outer wall of the shell, so that the outer wall of the shell can be wrapped and protected by the rubber layers, the protective pads are arranged at the corners of the shell to wrap the corners of the shell, uniformly distributed foam buffer particles are arranged in the protective pads to fill the protective pads, a certain buffer space is formed in the protective pads, the corners of the blackboard eraser are not easily damaged when the blackboard eraser accidentally drops, the blackboard eraser is more durable through the arrangement, and the service life of the blackboard eraser is prolonged;

(3) the magnetic block is arranged in the connecting plate, so that the blackboard eraser can be firmly adsorbed with an iron frame blackboard according to the adsorption effect of the internal magnetic block when not used, the blackboard eraser is more convenient to place and more convenient to take.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a front view of the protective structure of the present invention;

fig. 4 is a front view structure diagram of the dismounting structure of the present invention.

In the figure: 1. a connecting plate; 2. a housing; 3. a groove; 4. a rubber layer; 5. a protective structure; 501. a protective pad; 502. an adhesive layer; 503. foam cushioning particles; 6. connecting blocks; 7. a magnetic block; 8. a disassembly and assembly structure; 801. a clamping groove; 802. sticking a surface by a magic tape; 803. magic tape sliding surface; 804. cleaning cotton; 805. a layer of wear resistant particles.

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. 1-4, the present invention provides an embodiment: a blackboard eraser with long service life comprises a connecting plate 1, a shell 2 and connecting blocks 6, wherein the connecting blocks 6 are fixedly connected to the bottom end of the shell 2, the connecting plate 1 is fixedly connected to the bottom end of the connecting blocks 6, grooves 3 are formed in two ends of the shell 2, and the grooves 3 are symmetrically distributed in two ends of the shell 2, so that force can be applied by holding the shell 2 by hand more conveniently, and the phenomenon of slipping is not easy to occur;

the outer side wall of the shell 2 is provided with the rubber layer 4, the rubber layer 4 is uniformly wrapped on the outer side wall of the shell 2, the outer wall of the shell 2 is provided with the rubber layer 4, the outer wall of the shell 2 can be protected by the rubber layer 4, and the shell 2 is prevented from being damaged;

the magnetic block 7 is arranged inside the connecting plate 1, the bottom end of the connecting plate 1 is fixedly connected with the dismounting structure 8, the dismounting structure 8 comprises a clamping groove 801, a magic tape adhesive surface 802, a magic tape sliding surface 803, cleaning cotton 804 and an anti-abrasion particle layer 805, the clamping groove 801 is arranged inside the connecting plate 1, the magic tape adhesive surface 802 is arranged inside the clamping groove 801, the magic tape sliding surface 803 is adhered to the bottom end of the magic tape adhesive surface 802, the cleaning cotton 804 is fixedly connected to the bottom end of the magic tape sliding surface 803, the anti-abrasion particle layer 805 is arranged on the outer side wall of the cleaning cotton 804, and the anti-abrasion particle layer 805 is uniformly distributed on the outer side wall of the cleaning cotton 804;

specifically, as shown in fig. 1 and 4, when in use, the dismounting structure 8 is arranged inside the connecting plate 1, when in use, the clamping groove 801 is arranged inside the connecting plate 1, the hook and loop adhesive surface 802 is arranged inside the clamping groove 801, when the cleaning cotton 804 inside the blackboard eraser is required to be cleaned during use, the hook and loop adhesive sliding surface 803 arranged inside the cleaning cotton 804 and the hook and loop adhesive surface 802 can be torn away, dismounting between the cleaning cotton 804 and the connecting plate 1 is completed, dismounting and cleaning of the cleaning cotton 804 are facilitated, after cleaning is completed, the hook and loop adhesive sliding surface 803 and the hook and loop adhesive surface 802 are bonded to complete mounting, through the arrangement, the cleaning cotton 804 arranged in the blackboard eraser can be reused, and dismounting and replacement are more convenient;

protective structures 5 are arranged at four corners of the shell 2, each protective structure 5 comprises a protective pad 501, an adhesive layer 502 and foam buffering particles 503, the protective pads 501 wrap the four corners of the shell 2, the adhesive layers 502 are arranged on the inner side walls of the protective pads 501, and the protective pads 501 are adhered to the shell 2 through the adhesive layers 502;

the foam buffer particles 503 are arranged inside the protection pad 501, and the foam buffer particles 503 are uniformly filled inside the protection pad 501;

specifically, as shown in fig. 1 and 3, during the use, protective structure 5 is installed through four corners at casing 2, be provided with rubber layer 4 at the outer wall of casing 2, can make 2 outer walls of casing have rubber layer 4 parcel protection, and 2 corners of casing are provided with protection pad 501 and wrap up it, the inside foam buffering granule 503 that is provided with evenly distributed of protection pad 501, fill its inside, make its inside certain buffering space that has, the edge is difficult for impairedly when making the blackboard eraser accident drop, it is more durable to make the blackboard eraser through this setting, the increase of service life.

The working principle is as follows: when the blackboard eraser is used, the groove 3 arranged on the handheld shell 2 is taken up to be aligned with a place to be wiped for wiping, and the blackboard cleaning process is completed, firstly, the dismounting structure 8 is arranged inside the connecting plate 1, the clamping groove 801 is arranged inside the connecting plate 1 during use, the magic adhesive surface 802 is arranged inside the clamping groove 801, when the cleaning cotton 804 inside the blackboard eraser is required to be cleaned during use, the magic adhesive surface 803 arranged inside the cleaning cotton 804 and the magic adhesive surface 802 can be torn off, dismounting between the cleaning cotton 804 and the connecting plate 1 is completed, the cleaning cotton 804 is convenient to dismount, clean and clean, after cleaning, the magic adhesive surface 803 and the magic adhesive surface 802 are bonded for completing mounting, the cleaning cotton 804 arranged in the blackboard eraser can be reused through the arrangement, and dismounting and replacement are more convenient;

secondly, the protective structures 5 are arranged at the four corners of the shell 2, the rubber layer 4 is arranged on the outer wall of the shell 2, the outer wall of the shell 2 can be wrapped and protected by the rubber layer 4, the corners of the shell 2 are provided with protective pads 501 for wrapping the protective pads, foam buffer particles 503 which are uniformly distributed are arranged in the protective pads 501, the interior of the protective pads is filled, a certain buffer space is formed in the interior of the protective pads, the corners of the blackboard eraser are not easily damaged when the blackboard eraser accidentally drops, the blackboard eraser is more durable through the arrangement, and the service life of the blackboard eraser is prolonged;

finally, the magnet 7 is arranged in the connecting plate 1, so that the blackboard eraser can be firmly adsorbed with an iron frame blackboard according to the adsorption effect of the magnet 7 when the blackboard eraser is not used, the placement is more convenient, and the taking is more convenient.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a long service life's blackboard eraser, includes connecting plate (1), casing (2) and connecting block (6), its characterized in that: the bottom end of the shell (2) is fixedly connected with a connecting block (6), the bottom end of the connecting block (6) is fixedly connected with a connecting plate (1), a magnet (7) is arranged inside the connecting plate (1), the bottom end of the connecting plate (1) is fixedly connected with a dismounting structure (8), the dismounting structure (8) comprises a clamping groove (801), a magic tape sticking surface (802), a magic tape sliding surface (803), cleaning cotton (804) and an anti-abrasion particle layer (805), the clamping groove (801) is arranged inside the connecting plate (1), and the inside of the clamping groove (801) is provided with a magic tape sticking surface (802), the bottom end of the magic tape sticking surface (802) is stuck with a magic tape sliding surface (803), and the bottom fixedly connected with of magic subsides slip surface (803) is clean cotton (804), four corners of casing (2) are provided with protective structure (5).

2. A long-life blackboard eraser according to claim 1, characterized in that: both ends of casing (2) all are provided with recess (3), and recess (3) are the symmetric distribution at the both ends of casing (2).

3. A long-life blackboard eraser according to claim 1, characterized in that: be provided with on the lateral wall of casing (2) and glue cortex (4), and glue cortex (4) and be even parcel on the lateral wall of casing (2).

4. A long-life blackboard eraser according to claim 1, characterized in that: protective structure (5) are including protection pad (501), adhesive layer (502) and foam cushioning granule (503), four corners of casing (2) have all wrapped up protection pad (501), and are provided with adhesive layer (502) on the inside wall of protection pad (501), protection pad (501) are through the setting and the casing (2) bonding of adhesive layer (502).

5. A long-life blackboard eraser according to claim 4, characterized in that: the protection pad (501) is internally provided with foam buffer particles (503), and the foam buffer particles (503) are uniformly filled in the protection pad (501).

6. A long-life blackboard eraser according to claim 1, characterized in that: the outer side wall of the cleaning cotton (804) is provided with an anti-abrasion particle layer (805), and the anti-abrasion particle layer (805) is uniformly distributed on the outer side wall of the cleaning cotton (804).

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