CN214928553U

CN214928553U - Dust cleaning brush

Info

Publication number: CN214928553U
Application number: CN202120807719.1U
Authority: CN
Inventors: 李浩然; 李佼阳; 于璐
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-11-30
Anticipated expiration: 2031-04-20

Abstract

The utility model relates to a clearance technical field specifically is a dust brush cleaner, which comprises a mounting bracket, the lower extreme fixedly connected with sponge piece of mounting bracket, little sponge piece is cut apart into to the sponge piece, and the both ends of mounting bracket have seted up concertina hole and inserting groove, it has side brush dirt device to peg graft in the concertina hole, welded fastening has the elastic stand in the inserting groove, the centre gripping has the mobile jib in the elastic stand, the one end of mobile jib is provided with the rotational positioning structure, through this technical scheme's practicality, cuts apart into the little piece with the sponge piece and can make more clean of dust brush, is provided with the dust that the sponge piece can conveniently clear up in the blackboard groove in the both sides of mounting bracket moreover, and both sides articulate has the mobile jib, and has the extension bar to make things convenient for the student of different heights to use in the mobile jib, uses the convenience that is fit for extensively popularization very simply as a result.

Description

Dust cleaning brush

Technical Field

The utility model relates to a clearance technical field specifically is a dust brush cleaner.

Background

Dust brush is an indispensable teaching use tool in school, and current dust brush can leave the dust seal of one way at the blackboard after wiping the blackboard, lead to the clearance unclean, and the dust in the blackboard groove of blackboard below is difficult to brush the clearance with the dust, and need let the student wipe the blackboard when needs carry out work education to the student, and the height of blackboard is higher, pupil's height can not let their upper portion of wiping the blackboard, need step on the stool and erase, just so probably make the danger that the student dropped appear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dust brush cleaner 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:

the utility model provides a dust cleaning brush, includes the mounting bracket, the lower extreme fixedly connected with sponge piece of mounting bracket, little sponge piece is cut apart into to the sponge piece, and the both ends of mounting bracket have seted up telescopic hole and inserting groove, the side brush dirt device has been pegged graft in the telescopic hole, welded fastening has the elastic stand in the inserting groove, the centre gripping has the mobile jib in the elastic stand, the one end of mobile jib is provided with the rotational positioning structure, the rotational positioning structure passes through the round pin and articulates in the inserting groove, the other end of mobile jib is pegged graft and is had extension device.

Preferably, the side dust brushing device comprises a sponge frame, a conical sponge and a spring, the sponge frame is inserted into the telescopic hole, the rear end of the sponge frame is sleeved with the spring, the spring is located in the telescopic hole, and the conical sponge is inserted into the front end of the sponge frame.

Preferably, the rotary positioning structure comprises a rotating frame and a positioning square block, the rotating frame is welded and fixed on the main rod, and the positioning square block is integrally formed at one end of the rotating frame.

Preferably, the extension bar comprises an extension bar and a positioning pin, the extension bar is inserted into the main rod, the extension bar is provided with a moving groove and a positioning groove, one end of the positioning pin is welded and fixed on the inner wall of the main rod, the other end of the positioning pin is inserted into a square moving hole, and the square moving hole is arranged inside the main rod.

Preferably, the depth of the moving groove on the extension bar is smaller than that of the positioning groove, the moving groove penetrates through each positioning groove, and the height of each positioning groove is smaller than that of each positioning pin.

Preferably, after the main rod rotates 180 degrees, the surface of the positioning block is attached to the bottom of the insertion groove, and the positioning block is a stainless steel block.

Compared with the prior art, the beneficial effects of the utility model are that:

through this technical scheme's practicality, cut apart into the fritter with the sponge piece and can make the dust brush more clean of brush, be provided with the dust that the sponge piece can conveniently clear up the blackboard groove in the both sides of mounting bracket moreover, and both sides articulate has the mobile jib, and peg graft in the mobile jib and make things convenient for the student of different heights to use the extension bar, use convenience very, the result is simply fit for extensively promoting.

Drawings

FIG. 1 is an exploded schematic view of a dust brush;

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

FIG. 3 is a schematic structural view of the mounting bracket;

FIG. 4 is a cross-sectional view of the main stem;

fig. 5 is a schematic structural view of the extension bar.

In the figure: mounting bracket 1, sponge piece 2, mobile jib 3, swivel mount 4, location square 5, round pin 6, inserting groove 7, spring 8, extension bar 9, sponge frame 10, toper sponge 11, constant head tank 12, shifting chute 13, square removal hole 14, locating pin 15, elastic frame 16, flexible hole 17.

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 5, the present invention provides a technical solution:

the utility model provides a dust cleaning brush, including mounting bracket 1, the lower extreme fixedly connected with sponge piece 2 of mounting bracket 1, little sponge piece is cut apart into to sponge piece 2, and telescopic hole 17 and inserting groove 7 have been seted up at the both ends of mounting bracket 1, it is sponge frame 10 to peg graft side brush dirt device and side brush dirt device in the telescopic hole 17, toper sponge 11 and spring 8, sponge frame 10 pegs graft in telescopic hole 17, and the rear end of sponge frame 10 has cup jointed spring 8, spring 8 is in telescopic hole 17, and the front end of sponge frame 10 is pegged graft and is had toper sponge 11.

Welded fastening has flexible frame 16 in inserting groove 7, and the centre gripping has mobile jib 3 in the flexible frame 16, and the one end of mobile jib 3 is provided with rotational positioning structure and includes swivel mount 4 and orientation square 5, and swivel mount 4 welded fastening is on mobile jib 3, and the one end integrated into one piece of swivel mount 4 is provided with orientation square 5 and after the rotatory 180 degrees of mobile jib 3, and its surface is laminated with the bottom of inserting groove 7, and orientation square 5 is the stainless steel square.

The rotational positioning structure articulates in inserting groove 7 through round pin 6, and the other end of mobile jib 3 is pegged graft and is had extension fixture and extension fixture to include extension bar 9 and locating pin 15, and extension bar 9 is pegged graft in mobile jib 3, and set up on extension bar 9 that the degree of depth of mobile slot 13 is less than the degree of depth of locating slot 12 on shifting chute 13 and locating slot 12 and the extension bar, and shifting chute 13 runs through every locating slot 12, and the height that highly is less than locating pin 15 of locating slot 12.

One end of the positioning pin 15 is welded and fixed on the inner wall of the main rod 3, and the other end is inserted in the square moving hole 14, and the square moving hole 14 is formed in the main rod 3.

The working principle is as follows: when the utility model works, the sponge block 2 is divided into small sponge blocks to help the blackboard eraser to be cleaner, when dust is stored in the groove at the lower end of the blackboard, the conical sponge 11 at the side of the mounting frame can be used for erasing the conical sponge 11 and can be inserted into the blackboard groove, and the sponge is tightly propped against the blackboard groove under the action of the spring 8 to help the dust in the blackboard groove to be cleaned up, when the dust brush needs to be lengthened, the main rod 3 can be rotated out from the elastic frame 16 by slightly exerting force to rotate the main rod 3, then the positioning block 5 is rotated 180 degrees to contact with the bottom end of the insertion groove 7, so that the main rods 3 at two sides can be held to be high-position erased, the positioning block 5 has the function of avoiding the main rod 3 from excessively rotating, the elastic frame 16 plays a fixed role on the main rod 3, when the main rod needs to be further lengthened, as long as the lengthening rod 9 is pulled outwards, because locating pin 15 card is in constant head tank 12, so receive the hindrance of constant head tank 12 when the pulling and make the one end of locating pin 15 shrink into square removal hole 14, just so can make extension bar 9 stretch out, the card is in corresponding constant head tank 12, then when needing to shrink extension bar 9 into, rotate extension bar 9 and make locating pin 15 enter into in the shifting chute 13 can be with extension bar 9 toward the inside promotion of mobile jib 3, take up it.

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 dust brush cleaner, includes mounting bracket (1), its characterized in that: the lower extreme fixedly connected with sponge piece (2) of mounting bracket (1), little sponge piece is cut apart into in sponge piece (2), and telescopic hole (17) and inserting groove (7) have been seted up at the both ends of mounting bracket (1), it has side brush dirt device to peg graft in telescopic hole (17), welded fastening has flexible frame (16) in inserting groove (7), the centre gripping has mobile jib (3) in elastic frame (16), the one end of mobile jib (3) is provided with rotational positioning structure, rotational positioning structure articulates in inserting groove (7) through round pin (6), the other end of mobile jib (3) is pegged graft and is had extension fixture.

2. A dust brush according to claim 1, wherein: the side dust brushing device comprises a sponge frame (10), a conical sponge (11) and a spring (8), the sponge frame (10) is inserted into a telescopic hole (17), the rear end of the sponge frame (10) is sleeved with the spring (8), the spring (8) is located in the telescopic hole (17), and the conical sponge (11) is inserted into the front end of the sponge frame (10).

3. A dust brush according to claim 1, wherein: the rotary positioning structure comprises a rotating frame (4) and a positioning square block (5), the rotating frame (4) is fixed on the main rod (3) in a welding mode, and the positioning square block (5) is arranged at one end of the rotating frame (4) in an integrated mode.

4. A dust brush according to claim 1, wherein: the lengthening device comprises an lengthening rod (9) and a positioning pin (15), the lengthening rod (9) is inserted into the main rod (3), a moving groove (13) and a positioning groove (12) are formed in the lengthening rod (9), one end of the positioning pin (15) is welded and fixed on the inner wall of the main rod (3), the other end of the positioning pin is inserted into a square moving hole (14), and the square moving hole (14) is formed in the main rod (3).

5. A dust brush according to claim 4, wherein: the depth of the upper moving groove (13) of the extension bar is smaller than that of the positioning groove (12), the moving groove (13) penetrates through each positioning groove (12), and the height of each positioning groove (12) is smaller than that of the positioning pin (15).

6. A dust brush according to claim 3, wherein: after the main rod (3) rotates 180 degrees, the surface of the positioning block (5) is attached to the bottom of the insertion groove (7), and the positioning block (5) is a stainless steel block.