CN211138834U

CN211138834U - Multifunctional blackboard eraser

Info

Publication number: CN211138834U
Application number: CN201920278337.7U
Authority: CN
Inventors: 杨蕙宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2020-07-31
Anticipated expiration: 2029-03-06

Abstract

The utility model discloses a multifunctional blackboard eraser, which comprises a mounting seat, wherein the top surface of the mounting seat is provided with a placing groove, the bottom of the placing groove is communicated with the outside, the inside of the placing groove is provided with a connecting plate, the bottom surface of the connecting plate is provided with wiping cotton, the wiping cotton passes through the bottom of the placing groove and extends to the outside of the bottom of the mounting seat, and the connecting plate with the wiping cotton, which can be flexibly mounted and dismounted, is added in the mounting seat, so that the wiping cotton can be conveniently replaced, and the use cost is reduced; in addition, the top of the mounting seat in the utility model is provided with a placing groove, so that the placing groove has a certain storage function, can conveniently place chalks and is convenient to carry; the utility model discloses an increase in the collection lid can the horizontal slip doctor-bar, can scrape the chalk dust on the cotton of cleaning through the slip doctor-bar and fall to collecting in the box, avoid whole scattering in the air and by the inspiratory possibility of human body.

Description

Multifunctional blackboard eraser

Technical Field

The utility model belongs to the technical field of the blackboard eraser, concretely relates to multifunctional blackboard eraser.

Background

In present school's teaching in-process, for more convenient demonstration and demonstration teaching content, generally can use mark pen or chalk will write on the teaching board at the content, write the back using the chalk teaching, need only clean the blackboard through the blackboard eraser, then can write again, present blackboard eraser structure is fairly simple, the function is single, do not possess the storing function, it is fixed firm to clean the cotton on the board eraser simultaneously, can not realize changing, in addition after using the blackboard eraser for a long time, clean and be stained with a large amount of chalk dust on the cotton, need clear up, present blackboard eraser is generally all to be fallen down the chalk ash through patting, lead to the dust all to spread in the air, improve by human inspiratory possibility.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multifunctional blackboard eraser 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 an installation seat, wherein a placement groove is formed in the top surface of the installation seat, the bottom of the placement groove is communicated with the outside, a connecting plate is arranged inside the placement groove, wiping cotton is arranged on the bottom surface of the connecting plate, the wiping cotton penetrates through the bottom of the placement groove and extends to the outer side of the bottom of the installation seat, a closed cover is arranged inside the placement groove relative to the top of the connecting plate, a fixing protrusion is arranged on the bottom surface of the closed cover, a fixing groove is formed in the clamping connection portion of the top surface of the connecting plate and the fixing protrusion, a clamping column is arranged at the upper end of each of the two side surfaces of the closed cover, a telescopic groove is formed in the connection portion of the side surface of the closed cover and one end of the clamping column, one end of the clamping column extends into the telescopic groove, a spring is connected between one end of the clamping column and the telescopic groove, and a clamping hole is formed in the, the other end and the card hole block of card post are connected, the mount pad bottom outside is provided with collects the lid, the both sides surface of mount pad is provided with the plastics fixture block, the inside both sides surface and the plastics fixture block junction of collecting the lid are provided with the connecting hole, the inside of collecting the lid is provided with the doctor-bar for cleaning cotton below, the both ends of doctor-bar are provided with the restriction slider, the inboard surface of collecting the lid is provided with the restriction spout with restriction slider junction, one of them a side surface of restriction spout is provided with the intercommunication mouth, intercommunication mouth and outside intercommunication, with the one end restriction slider side surface is provided with the spliced pole, the spliced pole passes the intercommunication mouth and extends to the outside of collecting the lid, and the tip of spliced pole is provided with the pull ring.

Preferably, a communicating slide way is arranged on the surface of one side of the telescopic groove, a shifting rod is arranged at one end of the clamping column connected with the spring, and the shifting rod penetrates through the communicating slide way and extends to the outer side of the top of the closed cover.

Preferably, the fixing protrusion has a rectangular ring structure, and the shape and size of the fixing protrusion are consistent with those of the fixing groove.

Preferably, the section of the limiting sliding groove is of a T-shaped structure, and the section of the limiting sliding groove is consistent with that of the limiting sliding block.

Preferably, the bottom of the closed cover is a hollow structure, and the external contour dimension of the closed cover is consistent with the dimension of the placement groove.

Compared with the prior art, the beneficial effects of the utility model are that: the connecting plate with the wiping cotton which can be flexibly installed and disassembled is added in the mounting seat of the utility model, so that the wiping cotton can be conveniently replaced, and the use cost is reduced;

in addition, the top of the mounting seat in the utility model is provided with a placing groove, so that the placing groove has a certain storage function, can conveniently place chalks and is convenient to carry;

the utility model discloses an increase in the collection lid can the horizontal slip doctor-bar, can scrape the chalk dust on the cotton of cleaning through the slip doctor-bar and fall to collecting in the box, avoid whole scattering in the air and by the inspiratory possibility of human body.

Drawings

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

FIG. 2 is a front sectional view of the present invention;

FIG. 3 is a schematic cross-sectional view of the collecting cover of the present invention;

fig. 4 is a schematic sectional view of the utility model at a;

in the figure: 1. a mounting seat; 2. a collection cover; 3. a plastic clamping block; 4. a pull ring; 5. a communication port; 6. scraping a blade; 7. a restricting chute; 8. wiping cotton; 9. a placement groove; 10. a limiting slide block; 11. a telescopic groove; 12. clamping the column; 13. a clamping hole; 14. connecting holes; 15. a fixed protrusion; 16. fixing grooves; 17. a connecting plate; 18. the lid is closed.

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 to 4, the present invention provides a technical solution: a multifunctional blackboard eraser comprises an installation seat 1, wherein the top surface of the installation seat 1 is provided with a placement groove 9, the bottom of the placement groove 9 is communicated with the outside for convenient storage, a connecting plate 17 is arranged in the placement groove 9 for convenient storage, the bottom surface of the connecting plate 17 is provided with a wiping cotton 8, the wiping cotton 8 passes through the bottom of the placement groove 9 and extends to the outside of the bottom of the installation seat 1, the inside of the placement groove 9 is provided with a closed cover 18 relative to the top of the connecting plate 17, the bottom surface of the closed cover 18 is provided with a fixed bulge 15, the clamping connection part of the top surface of the connecting plate 17 and the fixed bulge 15 is provided with a fixed groove 16, the upper ends of the two side surfaces of the closed cover 18 are respectively provided with a clamping column 12, the connection part of the side surface of the closed cover 18 and one end of the clamping column 12 is provided with a telescopic groove 11, one end of the clamping column 12 extends into the telescopic groove, a clamping hole 13 is arranged at the joint of the upper end of the side surface of the placing groove 9 and the other end of the clamping column 12, the other end of the clamping column 12 is connected with the clamping hole 13 in a clamping manner, so that a closing cover 18 can be conveniently mounted and dismounted, a connecting plate 17 is mounted and dismounted, a collecting cover 2 is arranged on the outer side of the bottom of the mounting seat 1, plastic clamping blocks 3 are arranged on the surfaces of two sides of the mounting seat 1, connecting holes 14 are arranged at the joint of the surfaces of two sides of the inner part of the collecting cover 2 and the plastic clamping blocks 3 in a clamping manner, in order to ensure firm connection, a scraping blade 6 is arranged in the collecting cover 2 relative to the lower part of a wiping cotton 8, limiting sliding blocks 10 are arranged at two ends of the scraping blade 6, a limiting sliding chute 7 is arranged at the joint of the surface of the inner side of the collecting cover 2 and the limiting sliding blocks 10, in, the surface of one side of the limiting slider 10 at the same end is provided with a connecting column, the connecting column penetrates through the communicating port 5 and extends to the outer side of the collecting cover 2, and the end part of the connecting column is provided with a pull ring 4, so that the horizontal reciprocating motion of the scraping piece 6 is driven in order to facilitate manual pulling.

In this embodiment, preferably, a communication slide is disposed on a side surface of the telescopic slot 11, and a shift lever is disposed at an end of the locking column 12 connected to the spring, and the shift lever passes through the communication slide and extends to an outer side of a top portion of the closing cover 18, so as to facilitate the operation of the locking column 12.

In this embodiment, it is preferable that the fixing protrusion 15 has a rectangular ring structure, and the shape and size of the fixing protrusion 15 and the fixing groove 16 are consistent, in order to ensure a firm installation.

In this embodiment, it is preferable that the cross section of the restricting chute 7 is a T-shaped structure, and the cross section of the restricting chute 7 is consistent with the cross section of the restricting slider 10, so as to ensure more stable horizontal sliding.

In this embodiment, it is preferable that the bottom of the closing cover 18 is a hollow structure, and the external contour size of the closing cover 18 is consistent with the size of the placing groove 9, so as to facilitate the placing of the chalk.

The utility model discloses a theory of operation and use flow: when the utility model is installed, the side of the connecting plate 17 with the wiping cotton 8 is placed downwards horizontally in the placing groove 9, then the two driving levers are stirred, so that the two clamping columns 12 are contracted towards the inside of the telescopic groove 11, the closed cover 18 is placed in the placing groove 9, so that the fixed bulge 15 at the bottom of the closed cover 18 is clamped into the fixed groove 16, at the moment, the clamping columns 12 are aligned with the clamping holes 13, and under the action of the spring, the clamping columns 12 are popped out to be clamped into the clamping holes 13 to be used;

after the blackboard eraser is used, the collecting cover 2 can be sleeved outside the mounting seat 1 and is clamped and fixed with the connecting hole 14 through the plastic clamping block 3, then the pull ring 4 is held by a hand, the pull ring 4 drives the scraping blade 6 to horizontally reciprocate in the limiting sliding groove 7 through the limiting sliding block 10 along the communication port 5, the top end of the pull ring 4 is in contact with the wiping cotton 8, and dust on the surface of the wiping cotton 8 is scraped and falls down.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multi-functional blackboard eraser, includes mount pad (1), its characterized in that: the top surface of the mounting seat (1) is provided with a placing groove (9), the bottom of the placing groove (9) is communicated with the outside, a connecting plate (17) is arranged inside the placing groove (9), wiping cotton (8) is arranged on the bottom surface of the connecting plate (17), the wiping cotton (8) penetrates through the bottom of the placing groove (9) and extends to the outer side of the bottom of the mounting seat (1), a closed cover (18) is arranged inside the placing groove (9) relative to the top of the connecting plate (17), a fixing bulge (15) is arranged on the bottom surface of the closed cover (18), a fixing groove (16) is arranged at the clamping connection position of the top surface of the connecting plate (17) and the fixing bulge (15), the upper ends of the surfaces of the two sides of the closed cover (18) are respectively provided with a clamping column (12), and a telescopic groove (11) is arranged at the connection position of the side surface of the closed cover (18) and one end of the, one end of the clamping column (12) extends into the telescopic groove (11), a spring is connected between one end of the clamping column (12) and the telescopic groove (11), a clamping hole (13) is formed in the joint of the upper end of the side surface of the placing groove (9) and the other end of the clamping column (12), the other end of the clamping column (12) is connected with the clamping hole (13) in a clamping manner, the outer side of the bottom of the mounting seat (1) is provided with the collecting cover (2), the surfaces of the two sides of the mounting seat (1) are provided with the plastic clamping blocks (3), the joint of the surfaces of the two sides of the inner part of the collecting cover (2) and the plastic clamping blocks (3) is provided with a connecting hole (14), the scraping piece (6) is arranged in the collecting cover (2) relative to the lower part of the wiping cotton (8), the limiting sliding blocks (10) are arranged at the two ends of the scraping piece (6), and a limiting sliding groove (7) is formed in the, one side surface of one of them restriction spout (7) is provided with intercommunication mouth (5), intercommunication mouth (5) and outside intercommunication, with one end restriction slider (10) one side surface is provided with the spliced pole, the spliced pole passes intercommunication mouth (5) and extends to the outside of collecting lid (2), and the tip of spliced pole is provided with pull ring (4).

2. The multifunctional blackboard eraser according to claim 1, wherein: a communicating slide way is arranged on the surface of one side of the telescopic groove (11), a shifting rod is arranged at one end, connected with the spring, of the clamping column (12), and the shifting rod penetrates through the communicating slide way to extend to the outer side of the top of the closed cover (18).

3. The multifunctional blackboard eraser according to claim 1, wherein: the fixing protrusion (15) is of a rectangular ring structure, and the shape and the size of the fixing protrusion (15) are consistent with those of the fixing groove (16).

4. The multifunctional blackboard eraser according to claim 1, wherein: the section of the limiting sliding groove (7) is of a T-shaped structure, and the section of the limiting sliding groove (7) is consistent with that of the limiting sliding block (10).

5. The multifunctional blackboard eraser according to claim 1, wherein: the bottom of the closed cover (18) is of a hollow structure, and the external contour dimension of the closed cover (18) is consistent with that of the placing groove (9).