CN212979669U

CN212979669U - Blackboard writing device for junior middle school mathematics teaching

Info

Publication number: CN212979669U
Application number: CN202021862304.6U
Authority: CN
Inventors: 孙艳玲
Original assignee: Xinmin Princess Village School
Current assignee: Xinmin Princess Village School
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-04-16
Anticipated expiration: 2030-08-31

Abstract

The utility model provides a device is write with blackboard writing to junior middle school mathematics teaching relates to education equipment technical field, including wall body and auxiliary device, the fixed surface of wall body is connected with the mounting bracket, and the last fixed surface of mounting bracket is connected with the blackboard, and the anticollision groove has been seted up on the surface of blackboard, and auxiliary device is located the surface setting of wall body, and auxiliary device is including the cover brush, and the cover brush cover is established on the blackboard, the inner wall and the blackboard sliding connection of cover brush. The utility model discloses, extract the constant head tank with rotatory handle, hold rotatory handle and drive the dwang around the fixed column and rotate, the dwang drives connecting rod and cover brush motion immediately for the cover brush slides and with the chalk dust clean up on blackboard surface to the direction of keeping away from the installation piece, the student is difficult to clearance blackboard higher part inadequately because of the height, need clear up with the help of the climbing of table chair, easily lead to the student to fall down from the eminence, endanger student's life safety, foretell problem has effectively been avoided and the holistic ease for use of equipment has been improved in the application of this device.

Description

Blackboard writing device for junior middle school mathematics teaching

Technical Field

The utility model relates to an education equipment technical field especially relates to a blackboard writing device is used in junior middle school's mathematical education.

Background

The teacher writes on the blackboard when speaking, and also refers to the characters written by the teacher on the blackboard, which is beneficial to knowledge teaching, intelligence development and capability culture of students, and is beneficial to the students to have good temperament, activate classroom atmosphere and remember knowledge.

Junior middle school's mr is when professor mathematics, and the blackboard writing is often written on the blackboard, and most blackboard is higher on the market at present, and the student need clear up with the help of the climbing of table chair because of the height is difficult to enough the higher part of clearance blackboard, easily leads to the student to fall from the eminence, threatens student's life safety, need improve to this.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a blackboard-writing device for junior high school mathematics teaching.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a device is write with blackboard writing to junior middle school mathematics teaching, includes wall body and auxiliary device, the fixed surface of wall body is connected with the mounting bracket, the last fixed surface of mounting bracket is connected with the blackboard, the anticollision groove has been seted up on the surface of blackboard, auxiliary device is located the surface setting of wall body, auxiliary device is including the cover brush, the cover brush cover is established on the blackboard, the inner wall and the blackboard sliding connection of cover brush, the fixed surface of wall body is connected with the fixed column, the cover is established and is had the dwang in the fixed column, the one end that the fixed column was kept away from to the dwang is rotated and is connected with the connecting rod, the one end that the dwang.

Preferably, the surface of the wall body is provided with a positioning groove, the inner wall of the rotating rod is inserted and connected with a rotating handle in a sliding mode, and one end, far away from the rotating rod, of the rotating handle is inserted into the positioning groove and abuts against the inner wall of the positioning groove.

Preferably, the surface of the wall body is fixedly connected with an installation block, the lower surface of the installation block is fixedly connected with a power spring, and one end, far away from the installation block, of the power spring is fixedly connected with the brush sleeve.

Preferably, the surface of the mounting rack is provided with a collecting device, and the collecting device is positioned under the blackboard.

Preferably, the collecting device comprises a worm, the worm is inserted into the mounting frame and is rotatably connected with the inner wall of the mounting frame, the inner wall of the mounting frame is rotatably connected with a worm wheel, the upper surface of the worm wheel is fixedly connected with a rotating sheet, the worm is meshed with the worm wheel and is connected with the worm wheel, a collecting groove is formed in the surface of the mounting frame, a reset spring is fixedly connected with the inner wall of the mounting frame, the reset spring is close to one end of the collecting groove and is fixedly connected with a push block, and one end, far away from the worm, of the rotating sheet is abutted.

Preferably, the collecting hole has been seted up to the diapire of collecting vat, the lower fixed surface of mounting bracket is connected with the guide cylinder, the guide cylinder is located and sets up under the collecting hole, the one end that the mounting bracket was kept away from to the guide cylinder is inserted and is established and sliding connection has the collection box.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. in the utility model, by arranging the auxiliary device, when the students clean the blackboard, the students cannot clean the upper part of the blackboard, pull the rotating handle out of the positioning groove, hold the rotating handle to rotate around the fixed column to drive the rotating rod, the rotating rod immediately drives the connecting rod and the sleeve brush to move, so that the sleeve brush slides towards the direction far away from the mounting block and cleans up the chalk dust on the surface of the blackboard, the power spring is stressed and deformed to generate tension, the selection handle is loosened after cleaning is completed, the power spring loses the constraint to drive the sleeve brush to reset, the rotating handle is inserted into the positioning groove again, accomplish the clearance to the blackboard, most blackboards are higher on the market at present, and the student need clear up with the help of the climbing of table chair because of the height is difficult to the higher part of clearance blackboard inadequately, easily leads to the student to fall from the eminence, threatens student's life safety, and foretell problem has effectively been avoided and the holistic ease of use of equipment has been improved in the application of this device.

2. In the utility model, by arranging the collecting device, after the cleaning of the blackboard is completed, the chalk dust falls in the collecting tank, the worm is rotated to drive the worm wheel and the rotating sheet to rotate, the rotating sheet pushes the push block towards the direction of the collecting hole, the reset spring is deformed under stress to generate a pulling force, the chalk dust falls into the collecting box through the collecting hole and the guide tube, the worm is immediately rotated, the rotating sheet is reset, the reset spring loses the constraint to drive the push block to reset, after a certain amount of chalk dust is collected, the collecting box is drawn out, the chalk dust in the collecting box is cleaned and then inserted into the guide tube again, when most of the blackboards on the market are used, after writing, the chalk dust falls on the ground, and a user can take the chalk dust up when passing through the device, so that the chalk dust is easy to be sucked into the lung by the user to cause irreversible damage to the body health of the user, the application of the device effectively avoids the problems and improves the overall practicability of the device.

Drawings

Fig. 1 is a schematic structural view of a writing-on-board device for junior middle school mathematics teaching according to the present invention;

fig. 2 is a schematic structural view of a point a in fig. 1 of a writing-on-board device for junior middle school mathematics teaching according to the present invention;

FIG. 3 is a schematic structural view of an auxiliary device in a writing-on-board device for junior high school mathematics teaching according to the present invention;

FIG. 4 is a schematic structural view of a collecting device in a writing-on-board device for junior high school mathematics teaching according to the present invention;

fig. 5 is a schematic structural view of a point B in fig. 4 of a writing-on-board device for junior middle school mathematics teaching according to the present invention;

fig. 6 is the utility model provides an explosion chart of blackboard writing device for junior middle school mathematics teaching.

Illustration of the drawings: 1. a wall body; 2. a blackboard; 3. a mounting frame; 4. an auxiliary device; 41. sleeving a brush; 42. a power-assisted spring; 43. mounting blocks; 44. a connecting rod; 45. rotating the rod; 46. fixing a column; 47. rotating the handle; 48. positioning a groove; 5. a collection device; 51. a worm; 52. a worm gear; 53. a rotating sheet; 54. a push block; 55. a return spring; 56. a collection well; 57. a guide cylinder; 58. a collection box; 59. collecting tank; 6. anticollision groove.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1-6, the utility model provides a blackboard writing device for junior high school mathematics teaching, including wall body 1 and auxiliary device 4, the fixed surface of wall body 1 is connected with mounting bracket 3, and the last fixed surface of mounting bracket 3 is connected with blackboard 2, and anticollision groove 6 has been seted up on blackboard 2's surface, and auxiliary device 4 is located the surface setting of wall body 1.

The specific arrangement and function of the auxiliary means 4 and the collecting means 5 will be described in detail below.

As shown in fig. 1 and fig. 3, the auxiliary device 4 includes a brush 41, the brush 41 is sleeved on the blackboard 2, an inner wall of the brush 41 is slidably connected to the blackboard 2, a fixed column 46 is fixedly connected to a surface of the wall 1, a rotating rod 45 is sleeved on the fixed column 46 and rotatably connected to the fixed column 46, a connecting rod 44 is rotatably connected to an end of the rotating rod 45 away from the fixed column 46, an end of the connecting rod 44 away from the rotating rod 45 is rotatably connected to the brush 41, a positioning groove 48 is formed on the surface of the wall 1, an inner wall of the rotating rod 45 is inserted and slidably connected to a rotating handle 47, an end of the rotating handle 47 away from the rotating rod 45 is inserted into the positioning groove 48 and abuts against an inner wall thereof, a mounting block 43 is fixedly connected to the surface of the wall 1, a power spring 42 is fixedly connected to a lower surface of the mounting block 43, an end of the, the collecting device 5 is located directly below the blackboard 2.

The whole auxiliary device 4 achieves the effects that when a student cleans the blackboard 2, the student cannot clean the upper part of the blackboard 2, the rotating handle 47 is pulled out of the positioning groove 48, the rotating handle 47 is held to drive the rotating rod 45 to rotate around the fixing column 46, the rotating rod 45 immediately drives the connecting rod 44 and the sleeve brush 41 to move, so that the sleeve brush 41 slides in the direction away from the mounting block 43 and cleans chalk dust on the surface of the blackboard 2, the power spring 42 is stressed and deformed to generate a pulling force, the selected handle is loosened after cleaning is completed, the power spring 42 loses the constraint to drive the sleeve brush 41 to reset, the rotating handle 47 is inserted into the positioning groove 48 again to complete cleaning of the blackboard 2, most of the blackboards 2 on the market at present are high, the student cannot clean the high part of the blackboard 2 due to insufficient difficulty in cleaning, the student needs to climb by means of a desk and chair, and the student falls from a high place easily, and the life safety of the student, the application of the device effectively avoids the problems and improves the usability of the whole equipment.

As shown in fig. 1 and 6, the collecting device 5 includes a worm 51, the worm 51 is inserted in the mounting rack 3 and is connected with the inner wall of the mounting rack in a rotating manner, the inner wall of the mounting rack 3 is connected with a worm wheel 52 in a rotating manner, an upper surface of the worm wheel 52 is fixedly connected with a rotating sheet 53, the worm 51 is meshed with the worm wheel 52 and is connected with the surface of the mounting rack 3, a collecting groove 59 is formed in the surface of the mounting rack 3, an inner wall of the mounting rack 3 is fixedly connected with a return spring 55, the return spring 55 is close to one end of the collecting groove 59, one end of the rotating sheet 53, which is far away from the worm 51, is abutted to the pushing block 54, a collecting hole 56 is formed in the bottom wall of the collecting groove 59, a guide cylinder 57 is fixedly connected with the lower surface of the.

The whole collecting device 5 achieves the effect that after the cleaning of the blackboard 2 is completed, the chalk dust falls in the collecting groove 59, the worm 51 is rotated, the worm 51 drives the worm wheel 52 and the rotating sheet 53 to rotate, the rotating sheet 53 pushes the push block 54 towards the direction of the collecting hole 56, the reset spring 55 is stressed and deformed to generate a pulling force, the chalk dust falls into the collecting box 58 through the collecting hole 56 and the guide tube 57, the worm 51 is rotated immediately, the rotating sheet 53 is reset, the reset spring 55 loses the constraint and drives the push block 54 to reset, after a certain amount of chalk dust is collected, the collecting box 58 is drawn out, the chalk dust in the collecting box is cleaned and then is inserted into the guide tube 57 again, when most of the blackboards 2 on the market are used, after writing, the chalk dust falls on the ground, and a user can take the chalk dust up when passing through the device, so that the chalk dust is easy to be sucked into the lung by the user to cause irreversible damage to the body health of the user, the application of the device effectively avoids the problems and improves the overall practicability of the device.

The integral working principle is that when a student cleans the blackboard 2, the student cannot clean the upper part of the blackboard 2, the rotating handle 47 is pulled out of the positioning groove 48, the rotating handle 47 is held to drive the rotating rod 45 to rotate around the fixing column 46, the rotating rod 45 drives the connecting rod 44 and the sleeve brush 41 to move, so that the sleeve brush 41 slides in the direction away from the mounting block 43 and cleans chalk dust on the surface of the blackboard 2, the power spring 42 is stressed and deformed to generate a pulling force, the selected handle is loosened after cleaning is completed, the power spring 42 loses the constraint to drive the sleeve brush 41 to reset, the rotating handle 47 is reinserted into the positioning groove 48 to clean the blackboard 2, most of the blackboards 2 on the market are higher at present, the student cannot clean the higher part of the blackboard 2 due to insufficient height and needs to climb tables and chairs, the student falls from a high place easily, and life safety of the student is endangered, the application of the device effectively avoids the problems and improves the whole usability of the device, after the blackboard 2 is cleaned, the chalk dust falls into the collecting groove 59, the worm 51 is rotated, the worm 51 drives the worm wheel 52 and the rotating sheet 53 to rotate, the rotating sheet 53 pushes the push block 54 towards the collecting hole 56, the return spring 55 is deformed under the stress to generate a pulling force, the chalk dust falls into the collecting box 58 through the collecting hole 56 and the guide tube 57, the worm 51 is immediately rotated, the rotating sheet 53 is reset, the return spring 55 loses the constraint to drive the push block 54 to reset, after a certain amount of chalk dust is collected, the collecting box 58 is drawn out, the chalk dust in the collecting box is cleaned and then inserted into the guide tube 57 again, when most of the blackboards 2 on the market are used, after writing, the chalk dust falls on the ground, and a user can take the chalk dust up when passing through the device, so that the chalk dust is easy to be sucked into the lung by the user to cause irreversible damage to the body health of the user, the application of the device effectively avoids the problems and improves the overall practicability of the device.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a device is write with blackboard writing to junior middle school mathematics teaching, includes wall body (1) and auxiliary device (4), its characterized in that: fixed surface of wall body (1) is connected with mounting bracket (3), the last fixed surface of mounting bracket (3) is connected with blackboard (2), anticollision groove (6) have been seted up on the surface of blackboard (2), auxiliary device (4) are located the surface setting of wall body (1), auxiliary device (4) are including cover brush (41), cover brush (41) cover is established on blackboard (2), the inner wall and blackboard (2) sliding connection of cover brush (41), the fixed surface of wall body (1) is connected with fixed column (46), the cover is established and is rotated on fixed column (46) and is connected with dwang (45), the one end that fixed column (46) were kept away from in dwang (45) rotates and is connected with connecting rod (44), the one end that dwang (45) were kept away from in connecting rod (44) rotates with cover brush (41) and is connected.

2. The blackboard writing device for junior middle school mathematics teaching according to claim 1, characterized in that: constant head tank (48) have been seted up on the surface of wall body (1), the inner wall of dwang (45) is inserted and is established and sliding connection has rotatory handle (47), the one end that dwang (45) were kept away from in rotatory handle (47) inserts constant head tank (48) and offsets with its inner wall.

3. The blackboard writing device for junior middle school mathematics teaching according to claim 1, characterized in that: the surface of the wall body (1) is fixedly connected with an installation block (43), the lower surface of the installation block (43) is fixedly connected with a power-assisted spring (42), and one end, far away from the installation block (43), of the power-assisted spring (42) is fixedly connected with the brush sleeve (41).

4. The blackboard writing device for junior middle school mathematics teaching according to claim 1, characterized in that: the surface of mounting bracket (3) is provided with collection device (5), collection device (5) are located blackboard (2) under.

5. The blackboard writing device for junior middle school mathematics teaching of claim 4, wherein: collection device (5) are including worm (51), worm (51) are inserted and are established in mounting bracket (3) and rotate rather than the inner wall and be connected, the inner wall of mounting bracket (3) is rotated and is connected with worm wheel (52), the last fixed surface of worm wheel (52) is connected with rotor plate (53), worm (51) are connected with worm wheel (52) meshing, collecting vat (59) have been seted up on the surface of mounting bracket (3), the inner wall fixedly connected with reset spring (55) of mounting bracket (3), one end fixedly connected with ejector pad (54) that reset spring (55) are close to collecting vat (59), the one end that worm (51) were kept away from in rotor plate (53) offsets with ejector pad (54).

6. The blackboard writing device for junior middle school mathematics teaching of claim 5, wherein: collecting hole (56) have been seted up to the diapire of collecting vat (59), the lower fixed surface of mounting bracket (3) is connected with guide cylinder (57), guide cylinder (57) are located collecting hole (56) and set up under, the one end that mounting bracket (3) were kept away from in guide cylinder (57) is inserted and is established and sliding connection has collection box (58).