CN112742828A

CN112742828A - Cleaning equipment for screen

Info

Publication number: CN112742828A
Application number: CN202011538226.9A
Authority: CN
Inventors: 王远霞; 章德昌
Original assignee: Individual
Current assignee: Yongkang Mutong Electronic Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-05-04
Anticipated expiration: 2040-12-23
Also published as: CN112742828B

Abstract

The invention discloses a screen cleaning device, and particularly relates to the technical field of screen cleaning devices. According to the invention, the cleaning mechanism is arranged at one end in the shell, the hydraulic cylinder is started to drive the left brush barrel to roll back and forth by the fixed rod connected with the output end telescopic rod, and the first screw rods covering opposite threads can rotate up and down together by virtue of the slide blocks movably connected with the top and the bottom of the left brush barrel respectively, so that the purpose of repeatedly brushing the right brush barrel together is achieved, and the right brush barrel can clean the screen of the display more closely and comprehensively.

Description

Cleaning equipment for screen

Technical Field

The invention relates to the technical field of screen cleaning equipment, in particular to screen cleaning equipment.

Background

The screen usually has the width branch to spare part such as picture tube, fluorescent layer, liquid crystal board constitutes, because of the characteristic of its self material, the surface glues debris such as glutinous dust, hair often to influence user's watching and touch effect, the utility model relates to a novel screen cleaning equipment cleans and takes out dirt to computer LCD.

In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved:

(1) the traditional screen cleaning equipment only cleans the surface of the screen and cannot extract dust in the screen, and the function is single;

(2) the traditional screen cleaning equipment has short brush barrel length, cannot completely clean and wipe the liquid crystal screen, and is easy to display blocky water stains so as to influence the watching and using;

(3) most of traditional screen cleaning equipment is handheld or cannot clamp and fix the screen at all, so that cleaning water is easy to spray out, and the surrounding sanitary conditions are difficult to guarantee during use;

(4) the traditional screen cleaning equipment only uses a brush cylinder to clean the screen once, the cleaning force is weak, and the brush cylinder is easy to be dirty;

(5) the shower nozzle of the cleaning equipment of traditional screen is difficult to angle regulation, and can't switch internally spraying liquid in real time, and the practicality is relatively poor.

Disclosure of Invention

The invention aims to provide a screen cleaning device to solve the problem of single cleaning function in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a cleaning device for a screen comprises a shell, a door plate and universal wheels, wherein a cleaning mechanism is arranged at one end inside the shell, clamping structures are respectively arranged at four corners of the other end inside the shell, a waste liquid groove is fixedly connected at the bottom end inside the shell, the universal wheels are respectively and fixedly connected at four corners of the bottom end outside the shell, a scraping and washing mechanism is arranged at one end of the top inside the shell, a spraying mechanism is arranged inside the top end of the shell, and dust collecting mechanisms are respectively arranged on two sides of the other end of the shell;

the dust collecting mechanism comprises a door plate, the door plate is movably hinged to two sides of the other end of the shell respectively, the inside fixedly connected with collecting box of the door plate is connected with a coarse filter plate at one end inside the collecting box, a fine filter plate is movably connected to one side of the other end inside the collecting box, a negative pressure fan is fixedly connected to the inside of the other end of the collecting box, an inserting block is fixedly connected to one side of the top and the bottom of one end of the door plate respectively, and two groups of clamping grooves are formed in the middle positions of the top and the bottom of the other end.

Preferably, the brush cleaning mechanism comprises a hydraulic cylinder, a telescopic rod, a fixed rod, a sliding block, a first screw rod and a brush barrel, wherein the first screw rod is respectively and movably connected with the first screw rod at the top and the bottom of one end of the inner side of the shell, the two sides of the outer part of the first screw rod are respectively and movably connected with the sliding block, one end of the fixed rod between the sliding blocks is fixedly connected with the fixed rod, the telescopic rod is movably connected between the fixed rod and one side of the shell, one side of the telescopic rod penetrates through the hydraulic cylinder of the inner wall of the shell, and the other end of the telescopic rod is respectively and movably connected.

Preferably, the first screw is embedded in the slide block, and the slide block and the first screw are in the same horizontal plane.

Preferably, the brush cartridges are symmetrically distributed about a vertical midline of the housing.

Preferably, the clamping structure comprises spout, draw knot, leading wheel, connection rope, spring axle, clamp splice and stop block, the spout sets up four corners between the inside both ends of casing respectively, the inside swing joint of spout one end has the knot of drawing, swing joint has the leading wheel between the both sides of the inside one end of spout, swing joint has the spring axle between the both sides of the inside other end of spout, and the spring axle passes the leading wheel and draws fixedly connected with between the one end of detaining and be connected the rope, the one end fixedly connected with clamp splice of spring axle, the both sides on the inside bottom of casing and top are fixed connection respectively to the stop.

Preferably, scrape and wash mechanism and constitute by biax motor, transverse gear, vertical gear, sleeve, second screw rod, installation piece, scraper blade and compression spring, the sleeve is swing joint respectively in the both sides of casing top one end, the intermediate position department fixedly connected with transverse gear in the sleeve outside, biax motor fixed connection is on the top in the casing outside, the both sides of biax motor are respectively through the vertical gear of pivot fixedly connected with, the inside bottom threaded connection of sleeve has the second screw rod, and the bottom swing joint of second screw rod has the installation piece, the one end activity hinge of installation piece has the scraper blade, and the both sides difference fixedly connected with compression spring at top between scraper blade and the installation piece one end.

Preferably, the transverse gears are respectively arranged on one side of the top of the longitudinal gear, and the transverse gears and the longitudinal gear are in the same vertical plane.

Preferably, the sprinkler structure comprises water pump, hose, distributing pipe, shower nozzle, shifting block, logical groove, silo, top cap, cavity, commentaries on classics piece and hole, silo fixed connection is on the top in the casing outside, the inside both sides of silo are provided with the cavity respectively, and the top of cavity is provided with the top cap respectively, the bottom of silo is provided with logical groove, and the inside swing joint who leads to the groove has the shifting block, the inside one side of shifting block is provided with the hole, the inner wall fixedly connected with shifting block that leads to the groove is passed to one side of shifting block, the distributing pipe activity articulates the intermediate position department at the inboard top of casing, the other end fixedly connected with multiunit shower nozzle of distributing pipe, the fixed hose that is connected with between distributing pipe and the logical groove, and the one end fixedly.

Preferably, the spray heads are arranged in the other end of the distribution pipe at equal intervals.

Preferably, the diameter of the rotating block is smaller than the inner diameter of the through groove, and the rotating block and the through groove are arranged in a concentric circle.

Compared with the prior art, the invention has the beneficial effects that: the screen cleaning equipment not only realizes the function of enriching equipment, realizes the comprehensive cleaning of the screen, realizes the clamping and fixing of the display, realizes the scraping and washing of sewage on the screen, but also realizes the improvement of the practicability of the spraying mechanism;

(1) the dust collecting mechanisms are respectively arranged on two sides of the other end of the shell and comprise door plates, when the display screen is completely fixed in the shell through the clamping structure, the door plates are respectively turned over to enable two insertion blocks on the inner sides of the door plates to be respectively wedged into the clamping grooves, so that the shell can be closed, the negative pressure fan is started to collect dust in the display into the collecting box with strong suction, the movable fine filter plate is pulled out, and then the dust collecting box can be cleaned, so that the use function of the device is simple, convenient and effectively enriched;

(2) the cleaning mechanism is arranged at one end inside the shell and consists of a hydraulic cylinder, a telescopic rod, a fixed rod, a sliding block, a first screw rod and a brush barrel, the hydraulic cylinder is started to drive the brush barrel on the left side to roll back and forth through the fixed rod connected with the telescopic rod at the output end of the hydraulic cylinder, and the first screw rods covering opposite threads can be enabled to rotate up and down together by virtue of the sliding blocks movably connected with the top and the bottom of the brush barrel on the left side respectively, so that the aim of repeatedly brushing the brush barrels on the right side together is fulfilled, and the screen of the display is cleaned and brushed more closely and comprehensively;

(3) the clamping structures are respectively arranged at the four corners of the other end in the shell and consist of a sliding chute, a pull buckle, a guide wheel, a connecting rope, a spring shaft, a clamping block and a limiting block, fingers penetrate through the pull buckle and pull the pull buckle towards the middle of the shell, the connecting rope communicated with the spring shaft pulls the clamping block under the traction of the guide wheel to force the clamping block to stretch to a certain angle, the pull buckle is loosened after the clamping block is placed in a display, the clamping block is immediately reset and clamped and fixed together with the limiting block, the cleaning effect is prevented from being influenced by the position deviation generated in the cleaning process, water drops are prevented from splashing, and two purposes are achieved by one action;

(4) the scraping mechanism is arranged at one end of the top of the inner side of the shell and consists of a double-shaft motor, a transverse gear, a longitudinal gear, a sleeve, a second screw rod, a mounting block, scraping plates and compression springs, the double-shaft motor is meshed with the longitudinal gears on two sides of the double-shaft motor in a linkage manner to enable the sleeve fixed inside the double-shaft motor and the inside of the top end of the shell to rotate automatically, the second screw rod in threaded connection with the bottom end inside the sleeve gradually rises and falls, the scraping plates supported by two groups of compression springs at one end scrape turbid sewage on a screen, enable the turbid sewage to fall into a waste liquid tank at the bottom end inside the shell to be collected, and then enable the waste liquid tank to be scrubbed for the second time by the scrubbing mechanism to;

(5) through the inside on the casing top be provided with sprinkler structure, sprinkler structure is by the water pump, the hose, the distributing pipe, the shower nozzle, the shifting block, lead to the groove, the silo, the top cap, the cavity, change the piece and the hole is constituteed, open the top cap, pour clear water and washing liquid into the inside cavity of silo respectively, stir the lower liquid mouth that the piece that leads to the inslot portion made its inside hole and cavity and align, pass through the inside of hose with the water pump again and take out the liquid of difference to the distributing pipe, then spray evenly on the screen through the shower nozzle, thereby reach the purpose of in time switching washing liquid.

Drawings

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

FIG. 2 is a schematic side view of the cross-sectional structure of the present invention;

FIG. 3 is a schematic rear view of the cross-sectional structure of the present invention;

FIG. 4 is an enlarged partial cross-sectional view taken at A in FIG. 2 according to the present invention;

FIG. 5 is a schematic view of a front cross-sectional structure of a spraying mechanism according to the present invention;

fig. 6 is a schematic front view of the present invention.

In the figure: 1. a housing; 2. a brushing mechanism; 201. a hydraulic cylinder; 202. a telescopic rod; 203. fixing the rod; 204. a slider; 205. a first screw; 206. a brush cylinder; 3. a door panel; 4. coarse filter plate; 5. inserting a block; 6. a clamping structure; 601. a chute; 602. pulling the button; 603. a guide wheel; 604. connecting ropes; 605. a spring shaft; 606. a clamping block; 607. a limiting block; 7. a waste liquid tank; 8. a universal wheel; 9. a scraping mechanism; 901. a double-shaft motor; 902. a transverse gear; 903. a longitudinal gear; 904. a sleeve; 905. a second screw; 906. mounting blocks; 907. a squeegee; 908. a compression spring; 10. a spraying mechanism; 1001. a water pump; 1002. a hose; 1003. a distribution pipe; 1004. a spray head; 1005. shifting blocks; 1006. a through groove; 1007. a trough; 1008. a top cover; 1009. a cavity; 1010. rotating the block; 1011. a hole; 11. a card slot; 12. a negative pressure fan; 13. a collection box; 14. and (4) filtering the plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: referring to fig. 1-6, a cleaning device for a screen comprises a casing 1, a door plate 3 and universal wheels 8, wherein a cleaning mechanism 2 is arranged at one end inside the casing 1, clamping structures 6 are respectively arranged at four corners of the other end inside the casing 1, a waste liquid tank 7 is fixedly connected at the bottom end inside the casing 1, the universal wheels 8 are respectively fixedly connected at four corners of the bottom end outside the casing 1, a scraping mechanism 9 is arranged at one end of the top inside the casing 1, a spraying mechanism 10 is arranged inside the top end of the casing 1, and dust collecting mechanisms are respectively arranged at two sides of the other end of the casing 1;

referring to fig. 1-6, the cleaning equipment for the screen further comprises a dust collecting mechanism, the dust collecting mechanism comprises a door plate 3, the door plate 3 is respectively and movably hinged to two sides of the other end of the casing 1, a collecting box 13 is fixedly connected to the inside of the door plate 3, a coarse filter plate 4 is fixedly connected to one end inside the collecting box 13, a fine filter plate 14 is movably connected to one side of the other end inside the collecting box 13, a negative pressure fan 12 is fixedly connected to the inside of the other end of the collecting box 13, the model of the negative pressure fan 12 can be JS-ii-4A, a plug block 5 is respectively and fixedly connected to one side of the top and the bottom of one end of the door plate 3, and two groups of clamping;

specifically, as shown in fig. 1 and 6, after the display screen is completely fixed inside the casing 1 by the clamping structure 6, the door plate 3 is respectively turned over to wedge the two insertion blocks 5 at the inner side into the clamping grooves 11, so as to seal the casing 1, the negative pressure fan 12 is started to gather the dust inside the display into the collection box 13 with strong suction, the movable fine filter plate 14 is pulled out, so that the dust can be cleaned, and the use function of the device is simple, convenient and effectively enriched.

Example 2: the cleaning and brushing mechanism 2 comprises a hydraulic cylinder 201, an expansion link 202, a fixed rod 203, sliding blocks 204, a first screw 205 and a brush barrel 206, wherein the first screw 205 is respectively and movably connected with the top and the bottom of one end of the inner side of the shell 1, the sliding blocks 204 are respectively and movably connected with the two sides of the outer part of the first screw 205, one end between the sliding blocks 204 is fixedly connected with the fixed rod 203, the expansion link 202 is movably connected between the fixed rod 203 and one side of the shell 1, one side of the expansion link 202 penetrates through the inner wall of the shell 1 and is fixedly connected with the hydraulic cylinder 201, the model of the hydraulic cylinder 201 can be BMA-3-75-5, and the other end between the sliding blocks 204 is respectively and movably connected with the;

the first screw 205 is embedded in the slide block 204, and the slide block 204 and the first screw 205 are all in the same horizontal plane;

the brush cartridges 206 are symmetrically distributed about the vertical mid-line of the housing 1;

specifically, as shown in fig. 1 and 3, the fixed rod 203 connected to the output end telescopic rod 202 of the hydraulic cylinder 201 drives the left brush barrel 206 to roll back and forth, and at this time, the slider 204 movably connected to the top and the bottom of the left brush barrel 206 enables the first screw 205 covering the opposite threads to rotate up and down together, so that the right brush barrel 206 is repeatedly brushed together, and the screen of the display is better cleaned and fully brushed.

Example 3: the clamping structure 6 comprises a sliding chute 601, a pull buckle 602, a guide wheel 603, a connecting rope 604, a spring shaft 605, a clamping block 606 and a limiting block 607, wherein the sliding chute 601 is respectively arranged at four corners between two ends inside the shell 1, the pull buckle 602 is movably connected inside one end of the sliding chute 601, the guide wheel 603 is movably connected between two sides of one end inside the sliding chute 601, the spring shaft 605 is movably connected between two sides of the other end inside the sliding chute 601, the connecting rope 604 is fixedly connected between the spring shaft 605 and one end of the pull buckle 602 through the guide wheel 603, one end of the spring shaft 605 is fixedly connected with the clamping block 606, and the limiting block 607 is respectively and fixedly connected with two sides of the bottom end and the top end inside the;

specifically, as shown in fig. 1 and fig. 2, a finger penetrates through the pull buckle 602 and pulls the pull buckle towards the middle of the housing 1, the connecting rope 604 communicated with the spring shaft 605 pulls the clamping block 606 under the traction of the guide wheel 603 to force the clamping block 606 to be opened to a certain angle, the pull buckle 602 is released after the display is placed in the display, and at the moment, the clamping block 606 is immediately reset and clamps and fixes the display together with the limiting block 607, so that the display is prevented from being shifted in position in the cleaning process to affect the cleaning effect, and water is prevented from splashing out, and two purposes are achieved at one time.

Example 4: the scraping and washing mechanism 9 comprises a double-shaft motor 901, a transverse gear 902, a longitudinal gear 903, a sleeve 904, a second screw 905, an installation block 906, a scraping plate 907 and a compression spring 908, wherein the sleeve 904 is movably connected to two sides of one end of the top of the shell 1 respectively, the transverse gear 902 is fixedly connected to the middle position of the outer side of the sleeve 904, the double-shaft motor 901 is fixedly connected to the top end of the outer side of the shell 1, the model of the double-shaft motor 901 can be WSD-12310, the longitudinal gear 903 is fixedly connected to two sides of the double-shaft motor 901 through rotating shafts respectively, the second screw 905 is connected to the bottom end of the inner part of the sleeve 904 in a threaded manner, the installation block 906 is movably connected to the bottom end of the second screw 905, the scraping plate 907 is movably hinged to one end of the installation block;

the transverse gears 902 are respectively arranged on one side of the top of the longitudinal gear 903, and the transverse gears 902 and the longitudinal gear 903 are positioned on the same vertical plane;

specifically, as shown in fig. 1, 2 and 4, the dual-shaft motor 901 engages with the horizontal gear 902 by the vertical gears 903 on both sides thereof, so that the sleeve 904 fixed inside thereof and the inside of the top end of the housing 1 rotate automatically at the same time, at this time, the second screw 905 screwed to the bottom end inside the sleeve 904 gradually rises and falls, and the scraper 907 supported by two sets of compression springs 908 at one end thereof scrapes turbid sewage on the screen, so that the turbid sewage falls into the waste liquid tank 7 at the bottom end inside the housing 1 for collection, and then the cleaning mechanism 2 performs secondary cleaning to ensure that the cleaning is in place.

Example 5: the spraying mechanism 10 consists of a water pump 1001, a hose 1002, a distribution pipe 1003, a spray head 1004, a shifting block 1005, a through groove 1006, a trough 1007, a top cover 1008, a cavity 1009, a rotating block 1010 and a hole 1011, wherein the trough 1007 is fixedly connected to the top end of the outer side of the shell 1, the two sides inside the trough 1007 are respectively provided with the cavity 1009, and the top ends of the cavities 1009 are respectively provided with a top cover 1008, the bottom ends of the material tanks 1007 are provided with through grooves 1006, a rotating block 1010 is movably connected inside the through groove 1006, a hole 1011 is arranged at one side inside the rotating block 1010, a shifting block 1005 is fixedly connected at one side of the rotating block 1010 through the inner wall of the through groove 1006, a distribution pipe 1003 is movably hinged at the middle position of the top part of the inner side of the shell 1, a plurality of groups of spray heads 1004 are fixedly connected at the other end of the distribution pipe 1003, a hose 1002 is fixedly connected between the distribution pipe 1003 and the through groove 1006, one end of the hose 1002 is fixedly connected with a water pump 1001, and the model of the water pump 1001 can be XC-SB-01;

the nozzles 1004 are arranged at equal intervals inside the other end of the distribution pipe 1003;

the diameter of the rotary block 1010 is smaller than the inner diameter of the through groove 1006, and the rotary block 1010 and the through groove 1006 are arranged in a concentric circle;

specifically, as shown in fig. 1, 3 and 5, the top cover 1008 is opened, clean water and cleaning solution are respectively poured into the cavity 1009 inside the trough 1007, the rotating block 1010 inside the through groove 1006 is shifted to align the hole 1011 inside the through groove with the lower liquid opening of the cavity 1009, different liquids are pumped into the distribution pipe 1003 by the water pump 1001 through the hose 1002 and then uniformly sprayed on the screen through the spray head 1004, so that the purpose of timely switching the cleaning solution is achieved.

The working principle is as follows: when the invention is used, firstly, fingers penetrate through the pull buckle 602 and pull the pull buckle towards the middle of the shell 1, the connecting rope 604 communicated with the spring shaft 605 pulls the clamping block 606 under the traction of the guide wheel 603 to force the clamping block to open to a certain angle, the pull buckle 602 is released after the display is placed in, at the moment, the clamping block 606 is immediately reset and the limiting block 607 clamps and fixes the display together, thereby not only preventing the display from being deviated in position in the cleaning process and influencing the cleaning effect, but also preventing water drops from splashing out, and achieving two purposes at one time.

Afterwards, after the display screen is completely fixed in the shell 1 by the clamping structure 6, the door plate 3 is respectively turned over to enable the two insertion blocks 5 on the inner side of the door plate to be respectively wedged in the clamping grooves 11, so that the shell 1 can be sealed, the negative pressure fan 12 is started to collect dust in the display into the collecting box 13 with strong suction, the movable fine filter plate 14 is taken out, so that the dust can be cleaned, and the device is simple, convenient and effective in enriching use functions.

Next, open top cover 1008, pour into cavity 1009 inside silo 1007 respectively with clear water and washing liquid, stir the inside commentaries on classics piece 1010 of logical groove 1006 and make its inside hole 1011 align with the lower mouth of liquid of cavity 1009, pass through the inside of hose 1002 with water pump 1001 with different liquid pump to distribution pipe 1003 again, then evenly spray on the screen through shower nozzle 1004 to reach the purpose of in time switching washing liquid.

Furthermore, the double-shaft motor 901 is engaged with the transverse gear 902 by the longitudinal gears 903 on both sides thereof to make the sleeve 904 fixed inside and the inside of the top end of the housing 1 rotate simultaneously, at this time, the second screw 905 screwed with the bottom end inside the sleeve 904 gradually rises and falls, the scraping plate 907 supported by two sets of compression springs 908 at one end scrapes turbid sewage on the screen, so that the turbid sewage falls into the waste liquid tank 7 at the bottom end inside the housing 1 for collection, and then the cleaning mechanism 2 performs secondary cleaning to ensure that the cleaning is in place.

Finally, the hydraulic cylinder 201 is started to drive the left brush barrel 206 to roll back and forth by the fixing rod 203 connected with the output end telescopic rod 202, and the first screw rods 205 covering opposite threads can rotate up and down together by virtue of the sliders 204 movably connected with the top and the bottom of the left brush barrel 206 respectively, so that the purpose of repeatedly brushing the right brush barrel 206 together is achieved, and the right brush barrel is more attached to and comprehensively brushes the screen of the display.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a cleaning equipment of screen, includes casing (1), door plant (3) and universal wheel (8), its characterized in that: a cleaning mechanism (2) is arranged at one end inside a shell (1), clamping structures (6) are respectively arranged at four corners of the other end inside the shell (1), a waste liquid tank (7) is fixedly connected to the bottom end inside the shell (1), universal wheels (8) are respectively and fixedly connected to the four corners of the bottom end outside the shell (1), a scraping and washing mechanism (9) is arranged at one end of the top inside the shell (1), a spraying mechanism (10) is arranged inside the top end of the shell (1), and dust collecting mechanisms are respectively arranged on two sides of the other end of the shell (1);

the dust collecting mechanism comprises a door plate (3), the door plate (3) is movably hinged to two sides of the other end of the shell (1) respectively, a collecting box (13) is fixedly connected to the inside of the door plate (3), a coarse filtering plate (4) is fixedly connected to one end of the inside of the collecting box (13), a fine filtering plate (14) is movably connected to one side of the other end of the inside of the collecting box (13), a negative pressure fan (12) is fixedly connected to the inside of the other end of the collecting box (13), an inserting block (5) is fixedly connected to one side of the top and the bottom of one end of the door plate (3) respectively, and two groups of clamping grooves (11) are formed in the middle positions of the.

2. A cleaning device for a screen according to claim 1, characterized in that: the cleaning mechanism (2) comprises a hydraulic cylinder (201), an expansion link (202), a fixing rod (203), a sliding block (204), a first screw (205) and a brush barrel (206), wherein the first screw (205) is movably connected to the top and the bottom of one end of the inner side of the shell (1) respectively and is movably connected with the first screw (205), the two sides of the outer portion of the first screw (205) are movably connected with the sliding block (204) respectively, the fixing rod (203) is fixedly connected to one end between the sliding blocks (204), the expansion link (202) is movably connected between one side of the fixing rod (203) and one side of the shell (1), the hydraulic cylinder (201) is fixedly connected to the inner wall of the shell (1) and is penetrated by one side of the expansion link (202), and the brush barrel (206) is movably connected to the other end between the.

3. A cleaning device for a screen according to claim 2, characterized in that: the first screw (205) is embedded in the slide block (204), and the slide block (204) and the first screw (205) are in the same horizontal plane.

4. A cleaning device for a screen according to claim 2, characterized in that: the brush cylinders (206) are symmetrically distributed about a vertical middle line of the housing (1).

5. A cleaning device for a screen according to claim 1, characterized in that: the clamping structure (6) consists of a sliding groove (601), a pull buckle (602), a guide wheel (603), a connecting rope (604), a spring shaft (605), a clamping block (606) and a limiting block (607), the sliding chutes (601) are respectively arranged at four corners between two ends in the shell (1), a pull buckle (602) is movably connected inside one end of the sliding chute (601), a guide wheel (603) is movably connected between two sides of one end inside the sliding chute (601), a spring shaft (605) is movably connected between two sides of the other end in the sliding chute (601), and the spring shaft (605) penetrates through the guide wheel (603) and is fixedly connected with a connecting rope (604) between one end of the pull buckle (602), one end of the spring shaft (605) is fixedly connected with a clamping block (606), and the limiting blocks (607) are respectively and fixedly connected to the bottom end and the two sides of the top end in the shell (1).

6. A cleaning device for a screen according to claim 1, characterized in that: the scraping and washing mechanism (9) is composed of a double-shaft motor (901), a transverse gear (902), a longitudinal gear (903), a sleeve (904), a second screw (905), an installation block (906), a scraping plate (907) and a compression spring (908), wherein the sleeve (904) is movably connected to two sides of one end of the top of the shell (1) respectively, the transverse gear (902) is fixedly connected to the middle position of the outer side of the sleeve (904), the double-shaft motor (901) is fixedly connected to the top end of the outer side of the shell (1), the longitudinal gear (903) is fixedly connected to two sides of the double-shaft motor (901) through a rotating shaft respectively, the second screw (905) is connected to the bottom end of the inner portion of the sleeve (904) in a threaded mode, the installation block (905) is movably connected to the bottom end of the second screw (905), the scraping plate (907) is movably hinged to one end of the installation block (906), and the compression spring (908) is fixedly connected to.

7. The cleaning apparatus for a screen according to claim 6, wherein: the transverse gears (902) are respectively arranged on one side of the top of the longitudinal gear (903), and the transverse gears (902) and the longitudinal gear (903) are in the same vertical plane.

8. A cleaning device for a screen according to claim 1, characterized in that: the spraying mechanism (10) consists of a water pump (1001), a hose (1002), a distribution pipe (1003), a spray head (1004), a shifting block (1005), a through groove (1006), a trough (1007), a top cover (1008), a cavity (1009), a rotating block (1010) and holes (1011), wherein the trough (1007) is fixedly connected to the top end of the outer side of the shell (1), the cavities (1009) are respectively arranged on two sides of the inner part of the trough (1007), the top covers (1008) are respectively arranged on the top ends of the cavities (1009), the through groove (1006) is arranged at the bottom end of the trough (1007), the rotating block (1010) is movably connected to the inner part of the through groove (1006), the holes (1011) are arranged on one side of the inner part of the rotating block (1010), the shifting block (1005) is fixedly connected to the inner wall of the through groove (1006), and the distribution pipe (1003) is movably hinged to the middle position of the top, the other end of the distribution pipe (1003) is fixedly connected with a plurality of groups of spray heads (1004), a hose (1002) is fixedly connected between the distribution pipe (1003) and the through groove (1006), and a water pump (1001) is fixedly connected to one end of the hose (1002).

9. A cleaning device for a screen according to claim 8, wherein: the spray heads (1004) are arranged in the other end of the distribution pipe (1003) at equal intervals.

10. A method of cleaning a screen according to claim 8, wherein: firstly, fingers penetrate through the pull buckle 602 and pull the pull buckle towards the middle of the shell 1, the connecting rope 604 communicated with the spring shaft 605 pulls the clamping block 606 under the traction of the guide wheel 603 to force the clamping block to stretch to a certain angle, the pull buckle 602 is released after the display is placed in the display, and at the moment, the clamping block 606 is immediately reset and the limiting block 607 clamps and fixes the display together, so that the position deviation generated in the cleaning process is prevented from influencing the cleaning effect, water drops are also prevented from splashing, and two purposes are achieved at one time;