CN213861623U

CN213861623U - Multifunctional blackboard brush

Info

Publication number: CN213861623U
Application number: CN202022420303.2U
Authority: CN
Inventors: 林涵钰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-08-03
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses a multifunctional blackboard eraser, which comprises a fixed plate, an eraser main body, clamping plates and a hand piece, wherein the fixed plate is arranged into a rectangular plate-shaped structure, the eraser main body is arranged above the fixed plate, symmetrical clamping plates are arranged on two sides of the fixed plate, moving grooves are arranged on two groups of vertical outer walls of the fixed plate, and the hand piece is arranged in each moving groove; the blackboard eraser comprises an eraser body and is characterized in that the eraser body comprises a loofah sponge, a sponge block and a foam block, the loofah sponge, the sponge block and the foam block are all long strips with equal length, the loofah sponge is bonded with the sponge block through viscose, the sponge block is bonded with the foam block through the viscose, a gap exists in the fixing plate, a corrugated structure layer is arranged in the gap, and a wear-resistant layer wraps the outer surface of the fixing plate. The multifunctional blackboard brush is simple in structure and high in practicability.

Description

Multifunctional blackboard brush

Technical Field

The utility model belongs to the technical field of the teaching aid, concretely relates to multi-functional blackboard brush.

Background

Chalks and blackboards have long history as indispensable teaching aids for teaching, and play an immeasurable role in the development of education careers, many schools adopt a whiteboard and PPT courseware teaching mode at present, but the traditional chalk blackboard teaching mode cannot be completely replaced, however, water-soluble chalks can be wiped only by wet soft cloth or wet blackboard eraser after being used, and chalk dirt can be left on the blackboard after a long time and is difficult to remove, the chalk dirt is difficult to wipe by the soft cloth or sponge on the common blackboard eraser, and meanwhile, the blackboard can become wet or even has obvious water marks after being wiped by the wet blackboard eraser, so that the surface of the blackboard is dry, the waiting time for writing again is long, and the blackboard is very inconvenient.

Therefore, in order to meet the current situation, the design and production of a multifunctional blackboard eraser are urgently needed to meet the requirement of practical use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multi-functional blackboard brush to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multifunctional blackboard eraser comprises a fixed plate, an eraser body, clamping plates and a hand piece, wherein the fixed plate is of a rectangular plate structure, the eraser body is arranged above the fixed plate, the clamping plates are symmetrically arranged on two sides of the fixed plate, moving grooves are formed in two groups of vertical outer walls of the fixed plate, and the hand piece is arranged in each group of moving grooves;

the blackboard eraser comprises an eraser body and is characterized in that the eraser body comprises a loofah sponge, a sponge block and a foam block, the loofah sponge, the sponge block and the foam block are all long strips with equal length, the loofah sponge is bonded with the sponge block through viscose, the sponge block is bonded with the foam block through the viscose, a gap exists in the fixing plate, a corrugated structure layer is arranged in the gap, and a wear-resistant layer wraps the outer surface of the fixing plate.

Preferably, the clamping needles are fixedly welded at the opposite ends of the two groups of clamping plates, and the two groups of clamping needles are respectively inserted into the blackboard eraser main body;

two sets of the movable rod that the relative one end of grip block was all inlayed and is had two sets of symmetries to set up, the sliding tray with movable rod looks adaptation is all seted up to two sets of vertical outer walls of fixed plate, the movable rod is kept away from grip block one end and is extended to in the sliding tray, and movable rod and sliding tray inner wall sliding connection, fixed welding has expanding spring between movable rod and the inside lateral wall of sliding tray.

Preferably, the two sets of vertical outer walls of the hand piece are all fixedly welded with sliders, the hand piece is connected with the sliding groove in a sliding mode through the two sets of sliders and the two sets of vertical inner walls of the moving groove, and the compression springs arranged in a plurality of groups of equal distances are fixedly welded between the hand piece and the inner side wall of the moving groove.

Preferably, the clamping needle is arranged to be a cylindrical protruding structure, and the clamping needle is arranged between the two groups of movable rods.

Preferably, the length of the eraser body is greater than that of the fixing plate, and the outer surface of the hand piece is wavy.

The utility model discloses a technological effect and advantage: according to the multifunctional blackboard brush, the loofah sponge is used for cleaning chalk dirt on the surface of the blackboard, the loofah sponge has small damage to the blackboard and can absorb a certain amount of water, then the water-absorbed sponge block is used for dissolving and cleaning the chalk dirt, and finally the foam block is used for scraping off excessive water on the blackboard, so that the blackboard can be reused more quickly; by pulling the two groups of clamping plates, the two groups of clamping plates drive the plurality of groups of telescopic springs to extend through the two groups of movable rods, and due to the telescopic effect of the telescopic springs, the two groups of clamps are fixed on the eraser main body, so that the eraser main body can be conveniently mounted and dismounted; the user holds the hand-held pieces on the two sides of the fixing plate, and the labor intensity of the user is reduced and the usability of the whole body is improved through the elastic effect of the multiple groups of compression springs; the multifunctional blackboard brush is simple in structure and high in practicability.

Drawings

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

fig. 2 is a sectional view of a fixing plate of the present invention;

fig. 3 is an enlarged view of the structure at a in fig. 2 according to the present invention;

fig. 4 is a partial sectional view of a fixing plate according to the present invention.

In the figure: the blackboard eraser comprises a fixing plate 1, a blackboard eraser main body 2, a loofah sponge 21, a sponge 22, a foam 23, a clamping plate 3, a handheld piece 4, a clamping pin 5, a movable rod 6, a compression spring 7, an extension spring 8, a corrugated structure layer 9 and a wear-resistant layer 10.

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.

Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.

The utility model provides a multifunctional blackboard brush as shown in figures 1-4, which comprises a fixed plate 1, a blackboard eraser main body 2, a clamping plate 3 and a hand piece 4, wherein the fixed plate 1 is arranged into a rectangular plate-shaped structure, the blackboard eraser main body 2 is arranged above the fixed plate 1, symmetrical clamping plates 3 are arranged at two sides of the fixed plate 1, two groups of vertical outer walls of the fixed plate 1 are provided with moving grooves, and the hand piece 4 is arranged in each group of moving grooves;

the blackboard eraser main part 2 includes retinervus luffae fructus 21, sponge piece 22 and foam piece 23, retinervus luffae fructus 21, sponge piece 22 and foam piece 23 are isometric long strip form, retinervus luffae fructus 21 passes through the viscose and bonds with sponge piece 22, sponge piece 22 bonds with foam piece 23 through the viscose, there is the clearance fixed plate 1 inside, and is provided with corrugated structure layer 9 in the clearance, 1 surface parcel of fixed plate has wearing layer 10, and corrugated structure layer 9 and wearing layer 10 have guaranteed the use strength of fixed plate 1.

Specifically, the clamping pins 5 are fixedly welded at the opposite ends of the two groups of clamping plates 3, and the two groups of clamping pins 5 are respectively inserted into the eraser main body 2;

two sets of the relative one end of grip block 3 is all inlayed and is had the movable rod 6 that two sets of symmetries set up, the sliding tray with 6 looks adaptations of movable rod is all seted up to 1 two sets of vertical outer walls of fixed plate, 3 one ends of grip block are kept away from to movable rod 6 and in extending to the sliding tray, and movable rod 6 and sliding tray inner wall sliding connection, fixed welding has expanding spring 8 between movable rod 6 and the inside lateral wall of sliding tray.

Specifically, the equal fixed welding of two sets of vertical outer walls of handheld piece 4 has the slider, the spout sliding connection that handheld piece 4 was seted up through two sets of sliders and two sets of vertical inner walls of shifting chute, the fixed welding has compression spring 7 that the multiunit equidistance was arranged between handheld piece 4 and the shifting chute inside wall.

Specifically, the clamping pin 5 is arranged to be a cylindrical protruding structure, and the clamping pin 5 is arranged between the two groups of movable rods 6.

Specifically, the length of the blackboard eraser main body 2 is greater than that of the fixing plate 1, so that two groups of clamping needles 5 can be conveniently inserted into the blackboard eraser main body 2, and the outer surface of the hand-held piece 4 is wavy, so that a user can conveniently hold the blackboard eraser.

The theory of operation, this multi-functional blackboard brush, when using, at first stimulate two sets of grip blocks 3, two sets of grip blocks 3 all drive multiunit expanding spring 8 extension through two sets of movable rods 6, then place blackboard eraser main part 2 between two sets of grip blocks 3, because expanding spring 8's flexible effect, make two sets of card needles 5 fix blackboard eraser main part 2, then the handheld 4 of the handheld fixed plate 1 both sides of user, clean the chalk scale on the blackboard, at first clean the chalk scale on blackboard surface through retinervus luffae fructus 21, retinervus luffae fructus 21 is little and self can absorb a certain amount of moisture to blackboard itself, then dissolve the clearance with the chalk scale through the sponge piece 22 that absorbs water, scrape excessive moisture on the blackboard through foam piece 23 at last, be convenient for the blackboard can use once more sooner.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a multi-functional blackboard brush, includes fixed plate (1), blackboard eraser main part (2), grip block (3) and hand-held piece (4), its characterized in that: the fixed plate (1) is of a rectangular plate-shaped structure, the eraser main body (2) is arranged above the fixed plate (1), symmetrical clamping plates (3) are arranged on two sides of the fixed plate (1), moving grooves are formed in two groups of vertical outer walls of the fixed plate (1), and a hand piece (4) is arranged in each group of moving grooves;

the blackboard eraser main part (2) includes retinervus luffae fructus (21), sponge piece (22) and foam block (23), retinervus luffae fructus (21), sponge piece (22) and foam block (23) are isometric long form, retinervus luffae fructus (21) bonds with sponge piece (22) through viscose, sponge piece (22) bond with foam block (23) through viscose, there is the clearance fixed plate (1) inside, and is provided with corrugated structure layer (9) in the clearance, fixed plate (1) surface parcel has wearing layer (10).

2. The multifunctional blackboard brush of claim 1, wherein: clamping needles (5) are fixedly welded at opposite ends of the two groups of clamping plates (3), and the two groups of clamping needles (5) are respectively inserted into the blackboard eraser main body (2);

two sets of the relative one end of grip block (3) is all inlayed and is had movable rod (6) that two sets of symmetries set up, the sliding tray with movable rod (6) looks adaptation is all seted up to two sets of vertical outer walls of fixed plate (1), grip block (3) one end is kept away from in movable rod (6) extends to the sliding tray, and movable rod (6) and sliding tray inner wall sliding connection, fixed welding has expanding spring (8) between movable rod (6) and the inside lateral wall of sliding tray.

3. The multifunctional blackboard brush of claim 1, wherein: the utility model discloses a portable electronic device, including handheld piece (4), spout sliding connection that two sets of vertical outer walls of handheld piece (4) all fixed welding have the slider, the spout sliding connection that handheld piece (4) were seted up through two sets of sliders and two sets of vertical inner walls of shifting chute, fixed welding has compression spring (7) that the multiunit equidistance was arranged between handheld piece (4) and the shifting chute inside wall.

4. The multifunctional blackboard brush of claim 2, wherein: the clamp needle (5) is of a cylindrical protruding structure, and the clamp needle (5) is arranged between the two groups of movable rods (6).

5. The multifunctional blackboard brush of claim 1, wherein: the length of the blackboard eraser main body (2) is greater than that of the fixing plate (1), and the outer surface of the hand piece (4) is wavy.