CN112874208A

CN112874208A - Push-pull blackboard convenient to clean

Info

Publication number: CN112874208A
Application number: CN202110323282.9A
Authority: CN
Inventors: 黄建华; 郭中秋
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-06-01

Abstract

The invention discloses a push-pull blackboard convenient to clean, which comprises a frame fixed on a wall surface, wherein two ends inside the frame are fixedly connected with fixed plates, moving grooves are formed in the inner walls of the upper side and the lower side of the frame, two moving plates which are arranged in a bilateral symmetry mode are arranged between the two moving grooves, plate frames are fixedly connected to the outer sides of the two moving plates, pulleys are fixedly connected to the left side and the right side of the upper end and the lower end of each plate frame, the eight pulleys are connected into the corresponding moving grooves in a sliding mode, first movable grooves are formed in the upper position and the lower position of the front end of the frame and in the staggered positions of the two moving plates and the two fixed plates, and first magnets are connected into the first movable grooves in a sliding mode. Has the advantages that: can quickly and effectively clean each board surface of the push-pull blackboard without dead angles, and greatly reduces the cleaning difficulty.

Description

Push-pull blackboard convenient to clean

Technical Field

The invention relates to the technical field of cultural and educational equipment, in particular to a push-pull blackboard convenient to clean.

Background

For students who attend class in school, the blackboard and chalk are two things they face every day. Nowadays, science and technology are developed more and more, and the equipment that mr gave a lesson is higher, and many mr have begun to use multimedia teaching, but mr's the class still can not leave blackboard and chalk.

The existing blackboard has derived a push-pull blackboard from the integral type for matching with multimedia equipment, and the blackboard is provided with two movable blackboard faces capable of being pushed for shielding a multimedia display screen positioned at the rear part, but the push-pull blackboard is troublesome in cleaning the whole blackboard face, manual cleaning and wiping of each blackboard face are required to be sequentially carried out, the staggered position between the movable blackboard face and the rear fixed blackboard face is difficult to clean, and the trouble is brought to cleaning work.

To solve the above problems, we propose a push-pull blackboard convenient to clean.

Disclosure of Invention

The invention aims to solve the problems in the background art and provides a push-pull blackboard convenient to clean.

In order to achieve the purpose, the invention adopts the following technical scheme: a push-pull blackboard convenient to clean comprises a frame fixed on a wall surface, wherein both ends inside the frame are fixedly connected with fixed plates, moving grooves are respectively formed in the inner walls of the upper side and the lower side of the frame, two moving plates which are symmetrically arranged left and right are arranged between the two moving grooves, plate frames are respectively fixedly connected to the outer sides of the two moving plates, pulleys are respectively fixedly connected to the left side and the right side of the upper end and the lower end of each plate frame, the eight pulleys are respectively and slidably connected in the corresponding moving grooves, first movable grooves are respectively formed in the upper position and the lower position of the front end of the frame and in the staggered positions of the two moving plates and the two fixed plates, first magnets are slidably connected in the first movable grooves, first electromagnets are fixedly connected to the inner walls of the rear sides of the first movable grooves, and first springs are fixedly connected between one ends of the first magnets, which are far away from the first electromagnets, and the, a first movable rod is fixedly connected to one end, far away from the first electromagnet, of the first magnet, the front end of the first movable rod penetrates through the inner wall of the front end of the first movable groove and is fixedly connected with a connecting plate, a first cleaning rod is fixedly connected between the connecting plate located above and the corresponding connecting plate located below, the first cleaning rod is arranged in front of the movable plate surface, and a first sponge brush is fixedly connected to one end, close to the movable plate surface, of the first cleaning rod;

the upper and lower ends of the rear sides of the two plate frames are provided with second movable grooves at the staggered positions of the corresponding fixed plate surfaces, a second magnet is connected in the second movable groove in a sliding way, a second electromagnet is fixedly connected on the inner wall of the front end of the second movable groove, the second magnet is attached to the second electromagnet, a second spring is fixedly connected between one end of the second magnet, which is far away from the second electromagnet, and the inner wall of the rear side of the second movable groove, one end of the second magnet far away from the second electromagnet is fixedly connected with a second movable rod, the rear ends of two second movable rods which are positioned on the same side and are correspondingly arranged up and down penetrate through the inner wall of the rear side of the second movable groove and are fixedly connected with a second cleaning rod together, the second cleaning rod is fixedly connected with a second sponge brush by the end of the second cleaning rod, which is close to the fixed plate surface, and through holes are formed in the upper end and the lower end of the frame and in the positions of the two fixed plate surfaces.

The automatic dust collecting and collecting device is characterized in that a tap water pipe is arranged above the frame, a valve and a tap water pressure reducing valve are arranged on the tap water pipe, two water supply straight pipes and two water supply hoses are communicated with one side of a water outlet end of the tap water pressure reducing valve on the tap water pipe, an ash collecting box is fixedly connected to the lower end of the frame, the middle of the inner bottom wall of the ash collecting box is high, the two sides of the inner bottom wall of the ash collecting box are both communicated with liquid discharge pipes.

In the above-mentioned push-pull blackboard convenient to clean, the distance between the first magnet and the first electromagnet is equal to the distance between the first sponge brush and the moving board.

In the above-mentioned push-pull blackboard convenient to clean, the magnetic poles of the first magnet and the end close to the first electromagnet are opposite, and the magnetic poles of the second magnet and the end close to the second electromagnet are the same.

In foretell plug-type blackboard convenient to it is clean, the vertical first water service pipe that inlays in the first clean pole, one side intercommunication that first water service pipe is close to first sponge brush has a plurality of first branch pipes, the one end that first water service pipe was kept away from to first branch pipe extends to in the first sponge brush, the vertical second water service pipe that inlays in the clean pole of second, one side intercommunication that second water service pipe is close to the second sponge brush has a plurality of second branch pipes, the one end that second water service pipe was kept away from to the second branch pipe extends to in the second sponge brush.

In the above push-pull blackboard convenient to clean, one ends of the two water supply straight pipes, which are far away from the tap water pipe, are respectively communicated with the two first water through pipes, and one ends of the two water supply hoses, which are far away from the tap water pipe, respectively penetrate through the corresponding through holes and are communicated with the second water through pipes.

In the above push-pull type blackboard convenient to clean, the right side of the frame is provided with the control button, and the control button is electrically connected with the two first electromagnets and the two second electromagnets.

Compared with the prior art, the push-pull blackboard convenient to clean has the advantages that:

1. through first magnet, first electro-magnet, second magnet and the second electro-magnet of setting up, when needs carry out whole cleanness to the blackboard surface, only need press control button, two first electro-magnets and two second electro-magnets are all switched on, can make the removal face and the fixed face that first sponge brush and second sponge brush laminating correspond, promote then to remove the face and can carry out the cleaning work of the two, and can not have the dead angle, and is simple effective.

2. Through setting up tap water pipe, running water relief pressure valve, water supply straight tube, water supply hose, first water service pipe, second water service pipe, first branch pipe and second branch pipe, can be with in leading-in first sponge brush and the second sponge brush that corresponds of running water, when promoting the movable plate face then, can carry out thorough good cleaning to plug-type blackboard.

Drawings

FIG. 1 is a perspective view showing the structure of the side of a push-pull blackboard which is easy to clean according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 4 is a schematic structural view of the front surface of a push-pull blackboard convenient to clean according to the present invention;

FIG. 5 is a perspective view showing the structure of a dust-receiving box in a push-pull blackboard convenient for cleaning according to the present invention.

In the figure: 1 frame, 2 fixed face, 3 removal faces, 4 sheet frames, 5 shifting chutes, 6 pulleys, 7 first movable chutes, 8 first magnets, 9 first electromagnets, 10 first springs, 11 first movable rods, 12 connecting plates, 13 first cleaning rods, 14 first sponge brushes, 15 first water pipes, 16 first branch pipes, 17 second movable chutes, 18 second magnets, 19 second electromagnets, 20 second springs, 21 second movable rods, 22 second cleaning rods, 23 second sponge brushes, 24 second water pipes, 25 second branch pipes, 26 through holes, 27 tap water pipes, 28 tap water pressure reducing valves, 29 water supply straight pipes, 30 water supply hoses, 31 control buttons, 32 ash receiving boxes and 33 liquid discharge pipes.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-5, a push-pull blackboard convenient to clean comprises a frame 1 fixed on the wall surface, both ends inside the frame 1 are fixedly connected with fixed plates 2, moving grooves 5 are respectively arranged on the inner walls of the upper and lower sides of the frame 1, two moving plates 3 symmetrically arranged left and right are arranged between the two moving grooves 5, plate frames 4 are respectively fixedly connected with the outer sides of the two moving plates 3, pulleys 6 are respectively fixedly connected with the left and right sides of the upper and lower ends of the two plate frames 4, eight pulleys 6 are respectively and slidably connected in the corresponding moving grooves 5 to facilitate moving of the moving plates 3, first moving grooves 7 are respectively arranged at the upper and lower positions of the front end of the frame 1 and at the staggered positions of the two moving plates 3 and the two fixed plates 2, first magnets 8 are slidably connected in the first moving grooves 7, first electromagnets 9 are fixedly connected on the inner walls of the rear sides of the first, first magnet 8 keeps away from between the one end of first electro-magnet 9 and the front end inner wall of first movable groove 7 common fixedly connected with first spring 10, first magnet 8 keeps away from the first movable rod 11 of the one end fixedly connected with of first electro-magnet 9, first movable rod 11 front end runs through the front end inner wall and the fixedly connected with connecting plate 12 of first movable groove 7, be located the first cleaning rod 13 of common fixedly connected with between the connecting plate 12 of top and the connecting plate 12 that is located the below correspondence, first cleaning rod 13 is located and removes 3 the place ahead settings of face, first cleaning rod 13 is close to the first sponge brush 14 of the one end fixedly connected with that removes face 3, first sponge brush 14 can clean the chalk writing on the 3 surperficial removal faces of face.

The upper and lower ends of the rear sides of the two plate frames 4 are respectively provided with a second movable groove 17 at the staggered position of the fixed plate surface 2, a second magnet 18 is connected in the second movable groove 17 in a sliding way, the inner wall of the front end of the second movable groove 17 is fixedly connected with a second electromagnet 19, the second magnet 18 is attached to the second electromagnet 19, a second spring 20 is fixedly connected between one end of the second magnet 18 far away from the second electromagnet 19 and the inner wall of the rear side of the second movable groove 17, one end of the second magnet 18 far away from the second electromagnet 19 is fixedly connected with a second movable rod 21, the rear ends of the two second movable rods 21 which are positioned on the same side and correspondingly arranged up and down penetrate through the inner wall of the rear side of the second movable groove 17 and are fixedly connected with a second cleaning rod 22, one end of the second cleaning rod 22 close to the fixed plate surface 2 is fixedly connected with a second sponge brush 23, the second sponge brush 23 can clean chalk marks on the surface of the fixed plate surface 2, the frame 1 has through holes 26 at its upper and lower ends and at the positions of the two fixed plates 2.

A tap water pipe 27 is arranged above the frame 1, a valve and a tap water pressure reducing valve 28 are arranged on the tap water pipe 27, and the tap water pressure reducing valve 28 is in the prior art and can reduce the water pressure of tap water, and the water pressure is not further described herein. Two water supply straight pipes 29 and two water supply hoses 30 are communicated with one side of the water outlet end of the tap water pressure reducing valve 28 on the tap water pipe 27, an ash receiving box 32 is fixedly connected to the lower end of the frame 1 and used for collecting chalk ash and waste liquid generated during cleaning, the middle of the bottom wall of the ash receiving box 32 is higher than the bottoms of the two sides, and two sides of the lower end of the ash receiving box 32 are communicated with liquid discharge pipes 33, so that the waste liquid can flow into the two liquid discharge pipes 33 and be discharged (the liquid discharge pipes 33 are communicated with a sewer pipe).

The distance between the first magnet 8 and the first electromagnet 9 is equal to the distance between the first sponge brush 14 and the movable plate 3, and the first sponge brush 14 is ensured to be attached to the movable plate 3 when the first magnet 8 and the first electromagnet 9 are attracted.

The magnetic poles of the ends, close to the first electromagnet 8 and the first electromagnet 9, are opposite, the magnetic poles of the ends, close to the second electromagnet 18 and the second electromagnet 19, are the same, the first electromagnet 8 can be attracted when the first electromagnet 9 is electrified, and the second electromagnet 18 can be repelled when the second electromagnet 19 is electrified.

The first cleaning rod 13 is vertically embedded with a first water pipe 15, one side of the first water pipe 15 close to the first sponge brush 14 is communicated with a plurality of first branch pipes 16, one ends of the first branch pipes 16 far away from the first water pipe 15 extend into the first sponge brush 14, the second cleaning rod 22 is vertically embedded with a second water pipe 24, one side of the second water pipe 24 close to the second sponge brush 23 is communicated with a plurality of second branch pipes 25, one ends of the second branch pipes 25 far away from the second water pipe 24 extend into the second sponge brush 23, one ends of the two water supply straight pipes 29 far away from the tap water pipe 27 are respectively communicated with the two first water pipes 15, one ends of the two water supply hoses 30 far away from the tap water pipe 27 respectively penetrate through the corresponding through holes 26 and are communicated with the second water pipe 24, so that water can be conveniently increased into the first sponge brush 14 and the second sponge brush 23, the blackboard can be cleaned in a wet mode, and the cleaning effect of the blackboard can be improved.

The right side of the frame 1 is provided with a control button 31, the control button 31 is electrically connected with the two first electromagnets 9 and the two second electromagnets 19, and when the control button 31 is pressed, the two first electromagnets 9 and the two second electromagnets 19 are both electrified.

The working principle of the invention is as follows:

when the push-pull blackboard needs to be cleaned comprehensively, only the control button 31 needs to be pressed, two first electromagnets 9 and two second electromagnets 19 at the moment are all electrified, the first electromagnets 9 are electrified to attract the first magnets 8 to be close to each other, the first electromagnets and the second electromagnets are attached to each other, the first spring 10 is stretched, the first cleaning rod 13 is driven to move through the first movable rod 11 and the connecting plate 12, the first sponge brush 14 is attached to the corresponding movable board 3, the second electromagnets 19 electrically repel the second electromagnets 19, the second springs 20 are compressed, the second cleaning rod 22 is pushed to move through the second movable rod 21, and the second sponge brush 23 is attached to the corresponding fixed board 2. When two movable plate surfaces 3 are pushed to move oppositely, the first sponge brush 14 can brush chalk marks on the surfaces of the movable plate surfaces 3, the second sponge brush 23 can brush chalk marks on the surfaces of the fixed plate surfaces 2, then all the chalk marks on the push-pull blackboard can be removed by pushing the movable plate surfaces 3 twice, and the push-pull blackboard is fast and effective.

When needing to use the water to carry out better cleanness, only need open the valve on the water pipe 27, water in the water pipe 27 is after the decompression of running water relief pressure valve 28, get into corresponding first water service pipe 15 and second water service pipe 24 through water supply straight tube 29 and water supply hose 30, and flow into first sponge brush 14 and second sponge brush 23 in through corresponding first branch pipe 16 and second branch pipe 25, make the two moist, then when promoting to remove face 3, can advance thorough cleanness to fixed face 2 and removal face 3, greatly reduced the clean degree of difficulty of plug-type blackboard, make every dead angle of it can both obtain the cleanness. After the valve of the water pipe 27 is closed and the control button 31 is reset, both the first electromagnets 9 and the second electromagnets 19 are de-energized, and then the first cleaning rod 13 and the second cleaning rod 22 are reset by the first spring 10 and the second spring 20.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The push-pull blackboard convenient to clean comprises a frame (1) fixed on a wall surface and is characterized in that two ends inside the frame (1) are fixedly connected with fixed boards (2), moving grooves (5) are formed in the inner walls of the upper side and the lower side of the frame (1), two moving boards (3) which are symmetrically arranged left and right are arranged between the moving grooves (5), a board frame (4) is fixedly connected to the outer side of each moving board (3), pulleys (6) are fixedly connected to the left side and the right side of the upper end and the lower end of each board frame (4), the eight pulleys (6) are slidably connected in the corresponding moving grooves (5), first movable grooves (7) are formed in the upper position and the lower position of the front end of the frame (1) and in the staggered positions of the two moving boards (3) and the two fixed boards (2), and first magnets (8) are slidably connected in the first movable grooves (7), a first electromagnet (9) is fixedly connected on the inner wall of the rear side of the first movable groove (7), a first spring (10) is fixedly connected between one end of the first magnet (8) far away from the first electromagnet (9) and the inner wall of the front end of the first movable groove (7), one end of the first magnet (8) far away from the first electromagnet (9) is fixedly connected with a first movable rod (11), the front end of the first movable rod (11) penetrates through the inner wall of the front end of the first movable groove (7) and is fixedly connected with a connecting plate (12), a first cleaning rod (13) is fixedly connected between the connecting plate (12) positioned above and the corresponding connecting plate (12) positioned below together, the first cleaning rod (13) is arranged in front of the movable plate surface (3), and one end, close to the movable plate surface (3), of the first cleaning rod (13) is fixedly connected with a first sponge brush (14);

the upper end and the lower end of the rear side of the two plate frames (4) are respectively provided with a second movable groove (17) at the staggered position of the corresponding fixed plate surface (2), the second movable grooves (17) are internally and slidably connected with second magnets (18), the inner wall of the front end of each second movable groove (17) is fixedly connected with a second electromagnet (19), the second magnets (18) are attached to the second electromagnets (19), one end of each second magnet (18), far away from the second electromagnet (19), is fixedly connected with a second spring (20) together with the inner wall of the rear side of the second movable groove (17), one end of each second magnet (18), far away from the second electromagnet (19), is fixedly connected with a second movable rod (21), the rear ends of the two second movable rods (21), which are positioned on the same side and correspondingly arranged up and down, all penetrate through the inner wall of the rear side of the second movable groove (17) and are fixedly connected with a second cleaning rod (22) together, the second cleaning rod (22) is close to one end fixedly connected with a second sponge brush (23) of the fixed plate surface (2), and through holes (26) are formed in the upper end and the lower end of the frame (1) and in the positions of the two fixed plate surfaces (2).

Frame (1) top is equipped with water pipe (27), be equipped with valve and running water relief pressure valve (28) on water pipe (27), on running water pipe (27) and in one side intercommunication of the water outlet end of running water relief pressure valve (28) have two water supply straight tube (29) and two water supply hose (30), frame (1) lower extreme fixedly connected with connects ash box (32), connect the high both sides end in the middle of ash box (32) inner bottom wall, connect ash box (32) lower extreme both sides all to communicate and have fluid-discharge tube (33).

2. A push-pull blackboard convenient to clean according to claim 1, characterised in that the distance between the first magnet (8) and the first electromagnet (9) is equal to the distance between the first sponge brush (14) and the moving board (3).

3. A push-pull blackboard convenient to clean as claimed in claim 1, wherein the first magnet (8) has opposite magnetic poles at the end adjacent to the first electromagnet (9), and the second magnet (18) has the same magnetic poles at the end adjacent to the second electromagnet (19).

4. A push-pull blackboard convenient to clean according to claim 1, characterized in that a first water pipe (15) is vertically embedded in the first cleaning rod (13), one side of the first water pipe (15) close to the first sponge brush (14) is communicated with a plurality of first branch pipes (16), one end of the first branch pipe (16) far away from the first water pipe (15) extends into the first sponge brush (14), a second water pipe (24) is vertically embedded in the second cleaning rod (22), one side of the second water pipe (24) close to the second sponge brush (23) is communicated with a plurality of second branch pipes (25), and one end of the second branch pipe (25) far away from the second water pipe (24) extends into the second sponge brush (23).

5. A push-pull type blackboard convenient to clean as claimed in claim 4, wherein the ends of the two straight water supply pipes (29) far away from the tap water pipe (27) are respectively communicated with the two first water through pipes (15), and the ends of the two water supply hoses (30) far away from the tap water pipe (27) respectively penetrate through the corresponding through holes (26) and are communicated with the second water through pipe (24).

6. A push-pull blackboard convenient to clean according to claim 1 characterised in that a control button (31) is provided on the right side of the frame (1), the control button (31) is electrically connected with the two first electromagnets (9) and the two second electromagnets (19).