CN209987646U

CN209987646U - Foldable multifunctional blackboard eraser

Info

Publication number: CN209987646U
Application number: CN201920869008.XU
Authority: CN
Inventors: 向文欣; 王宏旭
Original assignee: Sichuan Information Vocational And Technical College (guangyuan Radio Technical School)
Current assignee: Sichuan Information Vocational And Technical College (guangyuan Radio Technical School)
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-01-24
Anticipated expiration: 2029-06-11

Abstract

The utility model provides a foldable multifunctional blackboard eraser, which comprises a positioning inserted link, a top-inserted square rod, a liquid crystal display, a square plate, a mounting groove, a rotating shaft, an inserting sleeve, a water feeding pipe, a positioning inserted frame, a blocking plate, a sponge frame, a rubber pad, a connecting block and a magnet; the two square plates are correspondingly connected left and right to form a main body of the blackboard eraser; a square magnet is embedded in the middle of the square plate on the left side and used for magnetically attracting the blackboard eraser to be placed on a blackboard; the square plates are provided with a square groove in a shape like a Chinese character 'hui', wherein the square groove on the outer ring is used for storing water, the square groove in the middle is used for installing a liquid crystal display and a magnet, the square bars are correspondingly inserted and connected with four rows of plug bushes through two rows of six top insertion positions, and the positioning plug-in bars can position the two square plates in a horizontal unfolding using posture and a buckling folding placing posture.

Description

Foldable multifunctional blackboard eraser

Technical Field

The utility model belongs to the technical field of the teaching aid, more specifically say, in particular to folding multi-functional blackboard eraser.

Background

The blackboard eraser is a tool frequently used in the teaching process of schools, and particularly needs to be used when the handwriting on the blackboard needs to be erased during class administration;

for example, patent No. CN201420336913.6 discloses a blackboard eraser, which comprises a blackboard eraser housing composed of an upper shell and a lower shell, an erasing layer disposed at the bottom of the lower shell; wherein, a cavity is formed inside the blackboard eraser shell consisting of the upper shell and the lower shell, a spray bottle is arranged in the cavity, and the spray bottle is provided with a push type spray head; a through hole is formed in the wall of the blackboard eraser shell, which is opposite to one side of the push type spray head, and the push type spray head of the spray bottle penetrates through the through hole of the blackboard eraser shell and is exposed outside the blackboard eraser shell. Compare with prior art, in the use of reality, can add the cleaning solution in the spray bottle in advance, thereby make the user use the blackboard eraser to clean the in-process, the shower nozzle on the accessible presses the spray bottle sprays the cleaning solution in the spray bottle with vaporific form on blackboard or blank, thereby make the user clean on blackboard or blank, can be light with the complete erasing of writing and pattern on blackboard or blank clean, leave the seal of a government organization in old china on avoiding blackboard or blank.

The blackboard eraser used in the prior art usually generates more chalk dust when in use, which not only pollutes the environment but also influences the health of teachers and students in classrooms, and the single function of the blackboard eraser brings more inconvenience to users.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a folding multi-functional blackboard eraser to solve the blackboard eraser and often can produce more chalk dust when using, the polluted environment influences teacher and student's healthy in the classroom again promptly, and the single function of blackboard eraser has brought more inconvenient problem for the user.

The purpose and the efficacy of the foldable multifunctional blackboard eraser are achieved by the following specific technical means:

a foldable multifunctional blackboard eraser comprises a positioning insertion rod, a top insertion square rod, a liquid crystal display, a square plate, a mounting groove, a rotating shaft, an insertion sleeve, a water feeding pipe, a positioning insertion frame, a blocking plate, a sponge frame, a rubber pad, a connecting block and a magnet; the two square plates are correspondingly connected left and right to form a main body of the blackboard eraser; a square magnet is embedded in the middle of the square plate on the left side and used for magnetically attracting the blackboard eraser to be placed on a blackboard; a square liquid crystal display is embedded in the middle of the square plate on the right side and used for displaying time; the outer end faces of the two square plates are respectively supported and communicated with a water adding pipe; the square plates are internally provided with a square groove in a shape like a Chinese character 'hui', wherein the outer square groove is used for storing water, and the middle square groove is used for installing a liquid crystal display and a magnet.

Furthermore, the inner side end faces of the two square plates are fixedly supported with a rotating shaft, and three connecting blocks are connected between the two rotating shafts in a sliding arrangement in a rotating sleeve manner.

Furthermore, the location is inserted the frame and is supported jointly by two side levers and middle short inserted bar and constitute, and the location is inserted the frame and is pushed up through the spring and push away the inside that slides to insert and locate the mounting groove to the inside in square frame aqua storage tank is arranged in the inside of mounting groove to the inside wall protrusion that all passes the mounting groove to the head section of three inserted bars, and circular baffle on the position of three inserted bar head sections supports to lean on sealing in the perforation of three inserted bars simultaneously.

Furthermore, the outer edge positions of the bottom end surfaces of the two square plates are both provided with a frame-shaped mounting groove in a concave manner, and the mounting grooves are arranged in the water storage grooves of the middle square frame of the square plates in a protruding manner; the bottom of the inserted bar is fixedly provided with a frame-shaped plugging plate, and a plurality of water leakage holes are uniformly distributed on the plugging plate.

Furthermore, the bottoms of the two square plates are adhered with a rectangular sponge frame through magic tapes, the bottom of the sponge frame is adhered with a prescription frame-shaped rubber pad, and the bottom plate surface inside the rectangular sponge frame is provided with brushes through the magic tapes.

Furthermore, two rows of rectangular plug bushes are arranged on the circumferential end faces of the two rotating shafts at equal intervals in a supporting mode, the included angle between the two rows of rectangular plug bushes is degree, and the two rows of rectangular plug bushes comprise three plug bushes.

Furthermore, the positioning insertion rod penetrates through the three connecting blocks in a sliding mode through spring pushing, two rows of top-inserting square rods are symmetrically arranged on the positioning insertion rod in a left-right supporting mode, and the two rows of top-inserting square rods are correspondingly pushed and inserted into the two rows of insertion sleeves.

The utility model discloses at least, include following beneficial effect:

when the blackboard eraser is not used, the two square plate blocks can be folded and fixed on the blackboard through the magnet in a magnetic mode, the two square plate blocks are buckled and folded, the chalk dust contained under the blackboard eraser can be prevented from falling off to pollute the environment, and when the blackboard eraser is used in a left-right erasing and sliding mode, the wetted rectangular sponge frame can adsorb the chalk dust contained under the blackboard eraser, the falling and emission of the chalk dust are reduced, and the dust breathing injury to a human body during the black erasing is effectively reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 3 is a schematic view of the present invention in a folded state.

Fig. 4 is a schematic view of the three-dimensional structure of the folded state of the present invention.

Fig. 5 is a schematic diagram of the positioning insertion rod of the present invention.

Fig. 6 is a schematic view of the positioning insertion rod inserted and assembled in the present invention.

Fig. 7 is a schematic view of the inside of the square plate of the present invention.

Fig. 8 is a schematic diagram of the three-dimensional structure inside the square plate of the present invention.

Fig. 9 is a bottom view of the square plate of the present invention.

Fig. 10 is a schematic view of the installation position of the positioning frame of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. positioning the inserted rod; 101. a square rod is inserted at the top; 2. a liquid crystal display; 3. a square plate; 301. mounting grooves; 302. a rotating shaft; 303. inserting a sleeve; 304. a water feeding pipe; 4. positioning the inserting frame; 5. a blocking plate; 6. a sponge frame; 601. a rubber pad; 7. connecting blocks; 8. and a magnet.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 10:

the utility model provides a foldable multifunctional blackboard eraser, which comprises a positioning inserted bar 1, a top inserted square bar 101, a liquid crystal display 2, a square plate 3, a mounting groove 301, a rotating shaft 302, an inserting sleeve 303, a water feeding pipe 304, a positioning inserted frame 4, a blocking plate 5, a sponge frame 6, a rubber pad 601, a connecting block 7 and a magnet 8; the two square plates 3 are correspondingly connected left and right to form a main body of the blackboard eraser; a square magnet 8 is embedded in the middle of the square plate 3 on the left side, and the magnet 8 is used for magnetically attracting the blackboard eraser to be placed on a blackboard; a square liquid crystal display 2 is embedded in the middle of the square plate 3 on the right side, and the liquid crystal display 2 is used for displaying time; the outer end faces of the two square plates 3 are respectively supported and communicated with a water adding pipe 304; the square plates 3 are both provided with a square groove in a shape like a Chinese character 'hui', wherein the outer square groove is used for storing water, and the middle square groove is used for installing the liquid crystal display 2 and the magnet 8.

The blackboard eraser is characterized in that a rotating shaft 302 is fixedly supported on the end faces of the inner sides of two square plates 3, three connecting blocks 7 are connected between the two rotating shafts 302 in a sliding arrangement mode in a rotating sleeve mode, the two square plates 3 can be folded in half and fixed on the blackboard through magnets 8 in a magnetic absorption mode when the blackboard eraser is not used, and chalk dust contained in the two square plates 3 can be prevented from falling off and polluting the environment when the two square plates 3 are folded in a buckling mode.

The positioning insertion frame 4 is formed by jointly supporting two side rods and a middle short insertion rod, the positioning insertion frame 4 is inserted into the mounting groove 301 in a sliding mode through a spring pushing device, the head end sections of the three insertion rods penetrate through the inner side wall of the mounting groove 301 and protrude into the square frame water storage tank, meanwhile, round baffles on the head end sections of the three insertion rods abut against through holes sealed in the three insertion rods, the front and back drawing sliding of the positioning insertion frame 4 can control the water in the square frame water storage tank to be switched on and off, and when the positioning insertion frame 4 is drawn backwards, the head end sections of the three insertion rods can be drawn out from the three through holes in the inner wall of the mounting groove 301 to enable the water in the square frame water storage tank to be discharged through the three through the through holes.

Wherein, the outer edge positions of the bottom end surfaces of the two square plates 3 are both provided with a frame-shaped mounting groove 301 in a concave manner, and the mounting grooves 301 are arranged in the square water storage tank in the square plate 3 in a protruding manner; the bottom shutoff of inserted bar is fixed with a frame-shaped closure plate 5, and a plurality of water holes that leak are evenly arranged on this closure plate 5, and when the water in the square frame aqua storage tank leaked and discharged, can be through the even cloth in a plurality of water holes that leak on closure plate 5 spill on sponge frame 6 and wet it.

Wherein, the bottom of two square plate 3 is pasted through the magic and is pasted and paste a rectangle sponge frame 6, the bottom of this sponge frame 6 is pasted and have a prescription frame shape rubber pad 601, and paste through the magic on the inside bottom plate face of rectangle sponge frame 6 and paste the brush of arranging, when the blackboard eraser is wiped the slip use about, the rectangle sponge frame 6 that is drenched can adsorb and connect the chalk dust that falls of wiping down greatly, reduce dropping of chalk dust and distribute, the dust to the human body respiratory injury when effectively having protected to wipe black originally.

Two rows of rectangular plug bushes 303 are arranged on the circumferential end faces of the two rotating shafts 302 at equal intervals in a supporting mode, an included angle between the two rows of rectangular plug bushes 303 is 90 degrees, the two rows of rectangular plug bushes 303 respectively comprise three plug bushes 303, the rectangular plug bushes 303 can be correspondingly plugged with the top plugging square rod 101, and therefore convenience is brought to implementation of a plugging and positioning function of the positioning plug rod 1.

The positioning insertion rod 1 penetrates through the three connecting blocks 7 in a sliding mode through spring pushing, two rows of six top insertion square rods 101 are symmetrically supported and arranged on the positioning insertion rod 1 in a bilateral mode, the two rows of top insertion square rods 101 are correspondingly pushed and inserted into the two rows of insertion sleeves 303, the two rows of top insertion square rods 101 and the four rows of insertion sleeves 303 are correspondingly inserted through selection of the two rows of six top insertion square rods 101, and the positioning insertion rod 1 can position the two square plates 3 in a horizontally-unfolded use posture and an oppositely-buckled folding placing posture.

The specific use mode and function of the embodiment are as follows:

the utility model discloses folding operation flow of black book wiping: firstly, the positioning insertion rod 1 is pulled backwards, so that the top square insertion rod 101 is separated from the insertion sleeve 303 in a sliding mode, the two square plate blocks 3 can be buckled and folded, then the positioning insertion rod 1 is loosened, the top square insertion rod 101 can rebound and reset, and the top square insertion rod 101 and the insertion sleeve 303 turned over at the top are correspondingly inserted together to complete the folding and positioning operation of the blackboard eraser.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A foldable multifunctional blackboard eraser is characterized in that: the device comprises a positioning inserted rod (1), a top inserted square rod (101), a liquid crystal display (2), a square plate block (3), a mounting groove (301), a rotating shaft (302), an inserting sleeve (303), a water feeding pipe (304), a positioning inserting frame (4), a blocking plate (5), a sponge frame (6), a rubber pad (601), a connecting block (7) and a magnet (8); the two square plates (3) are correspondingly connected left and right to form a main body of the blackboard eraser; a square magnet (8) is embedded in the middle of the square plate (3) on the left side, and the magnet (8) is used for magnetically attracting the blackboard eraser to be placed on a blackboard; a square liquid crystal display (2) is embedded in the middle of the square plate (3) on the right side, and the liquid crystal display (2) is used for displaying time; the outer end faces of the two square plates (3) are respectively supported and communicated with a water adding pipe (304); the square plates (3) are internally provided with a square groove shaped like a Chinese character 'hui', wherein the outer square groove is used for storing water, and the middle square groove is used for installing the liquid crystal display (2) and the magnet (8).

2. The foldable multi-functional blackboard eraser according to claim 1, wherein: the inner side end surfaces of the two square plates (3) are respectively fixedly supported with a rotating shaft (302), and three connecting blocks (7) are connected between the two rotating shafts (302) in a sliding arrangement in a rotating sleeve manner.

3. The foldable multi-functional blackboard eraser according to claim 1, wherein: the positioning insertion frame (4) is formed by jointly supporting two side rods and a middle short insertion rod, the positioning insertion frame (4) is inserted into the mounting groove (301) in a sliding mode through spring pushing, the head sections of the three insertion rods penetrate through the inner side wall of the mounting groove (301) in a protruding mode and are arranged inside the square frame water storage tank, and meanwhile circular baffles on the head sections of the three insertion rods abut against through holes sealed on the three insertion rods.

4. The foldable multi-functional blackboard eraser according to claim 1, wherein: the outer edge positions of the bottom end surfaces of the two square plates (3) are both provided with a frame-shaped mounting groove (301) in a concave manner, and the mounting grooves (301) are arranged in the square water storage tank of the middle frame of the square plate (3) in a protruding manner; the bottom of the inserted bar is fixedly provided with a frame-shaped plugging plate (5) in a plugging way, and a plurality of water leakage holes are uniformly distributed on the plugging plate (5).

5. The foldable multi-functional blackboard eraser according to claim 1, wherein: the bottoms of the two square plates (3) are adhered with a rectangular sponge frame (6) through magic tapes, the bottom of the sponge frame (6) is adhered with a prescription frame-shaped rubber pad (601), and the bottom plate surface inside the rectangular sponge frame (6) is adhered with brushes through magic tapes.

6. The foldable multi-functional blackboard eraser according to claim 1, wherein: two rows of rectangular plug bushes (303) are arranged on the circumferential end surfaces of the two rotating shafts (302) at equal intervals in a supporting mode, the included angle between the two rows of rectangular plug bushes (303) is 90 degrees, and the two rows of rectangular plug bushes (303) comprise three plug bushes (303).

7. The foldable multi-functional blackboard eraser according to claim 1, wherein: the positioning insertion rod (1) penetrates through the three connecting blocks (7) in a sliding mode through spring pushing, two rows of top insertion square rods (101) are symmetrically arranged on the positioning insertion rod (1) in a left-right supporting mode, and the two rows of top insertion square rods (101) are correspondingly pushed and inserted into the two rows of insertion sleeves (303).