CN114749027A

CN114749027A - Cleaning device for reverse osmosis membrane assembly

Info

Publication number: CN114749027A
Application number: CN202210524732.5A
Authority: CN
Inventors: 郑颖; 雒鑫伟; 唐军; 王丹; 康一俊; 王海洋
Original assignee: Chongqing Yikang Environmental Protection Engineering Co ltd
Current assignee: Chongqing Yikang Environmental Protection Engineering Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-07-15
Anticipated expiration: 2042-05-13
Also published as: CN114749027B

Abstract

The invention provides a cleaning device for reverse osmosis membrane components, which comprises a main tank assembly, a cleaning assembly, a combined wall scraping assembly, a reciprocating switching assembly and a switching and moving assembly, wherein the cleaning assembly is arranged in the main tank assembly, and a plurality of groups of reverse osmosis membrane mold cores can be clamped and pressed at one time between a top pressing cover and a bottom pressing cover to clean the inner filter core structure of the reverse osmosis membrane mold cores; meanwhile, the lower end of the main water inlet pipe is also connected with a combined wall scraping assembly, a first driving coupling gear and a second driving coupling gear in the reciprocating switching assembly can move synchronously, and the first driving coupling gear and the first rotating gear can be meshed through the synchronous rotation of the first rotating gear and the second rotating gear driven by the spiral fan wheel, and the forward and reverse rotation switching of the movable lead screw can be realized through the meshing switching of the second driving coupling gear and the second rotating gear; and the outer wall cleaning disc is in transmission connection with the switching shaft through the switching linkage assembly, so that the outer wall cleaning disc can move to drive the outer wall cleaning disc to circularly reciprocate, and the device is energy-saving and environment-friendly.

Description

Cleaning device for reverse osmosis membrane assembly

Technical Field

The invention relates to the technical field of water treatment devices, in particular to a cleaning device for a reverse osmosis membrane assembly.

Background

In the industries with high water consumption and high pollution, the waste water treatment in the process is well done, so that the waste water is discharged after reaching the standard, the pollution is reduced, and the key of the survival and sustainable development of enterprises is the clean production.

Membrane technology has brought a new revolution to the water treatment industry, where reverse osmosis membrane technology has proven to be an effective method for treating industrial wastewater; the reverse osmosis membrane technology greatly improves the technical equipment level of domestic advanced wastewater treatment, and obtains good environmental benefits, social benefits and economic benefits.

The reverse osmosis module in sewage treatment is after using a period, and the impurity of a large amount of organic pollutant and other ion class can adhere to its filter core inside and surface, consequently in current technology, need regularly to wash the reverse osmosis module to guarantee its normal filtration level and life.

Most of the traditional reverse osmosis membrane component cleaning devices are characterized in that each filter element is pressed and clamped in a different filter cylinder, acidic or alkaline solution is used for dissolving and cleaning pollutants in the filter element, and the pollutants adsorbed in the filter element can be removed to a certain degree; however, in the actual sewage filtering process of the reverse osmosis module, pollutants are not only remained in the filter element, but also on the outer surface of the adsorbed filter element, and the single mode of cleaning the inside of the filter element is complex in installation process and has the defect of incomplete cleaning.

Disclosure of Invention

In order to solve the technical problems in the background art, the invention provides a cleaning device for a reverse osmosis membrane component, which comprises a main tank assembly, a cleaning assembly, a combined wall scraping assembly, a reciprocating switching assembly and a switching combined moving assembly, wherein the cleaning assembly comprises a main water inlet pipe and a main water outlet pipe;

the main tank assembly is a structural matrix of the device, a main water inlet pipe in the cleaning assembly is connected to the upper end of an inner cavity of the main tank assembly, a main water outlet pipe is connected to the lower end of the inner cavity of the main tank assembly, and a plurality of groups of reverse osmosis mold cores are pressed between the main water inlet pipe and the main water outlet pipe;

a hydrodynamic cavity in the combined wall scraping assembly is communicated with a main water inlet pipe water path, the lower end of the hydrodynamic cavity is connected with a hydrodynamic water return pipe, the lower end of the hydrodynamic water return pipe is communicated with a main water inlet pipe, a one-way valve is arranged in a pipeline connecting the hydrodynamic water return pipe and the main water inlet pipe, the center of an outer wall cleaning disc is slidably arranged in the hydrodynamic water return pipe, a plurality of groups of cleaning brushes are clamped on positions of the main surface of the outer wall cleaning disc corresponding to the plurality of groups of reverse osmosis mold cores, inner brushes of the cleaning brushes are in interference fit with the outer walls of the reverse osmosis mold cores, a movable lead screw is parallelly and rotatably arranged on one side of the hydrodynamic water return pipe, a movable sliding block is connected to the position of the main surface of the outer wall cleaning disc corresponding to the movable lead screw, the movable sliding block is matched in the movable lead screw, a switching square tenon is arranged at the upper end of the movable lead screw, a spiral fan wheel is rotatably arranged in the hydrodynamic cavity, and the bottom shaft end of the spiral fan wheel is connected with a hydrodynamic bevel gear; a first rotating gear in the reciprocating switching assembly is horizontally and rotatably arranged on one side of a movable screw rod, the first rotating gear is in transmission connection with a hydrodynamic bevel gear, a second rotating gear is meshed on one side of the first rotating gear, a certain height difference exists between the second rotating gear and the first rotating gear, a switching sliding seat is slidably inserted in a switching square tenon, a first driving coupling gear is fixedly inserted into one side of the outer shaft end of the switching sliding seat, a second driving coupling gear is fixedly inserted into the other side of the outer shaft end of the switching sliding seat, a switching shaft is hermetically and rotatably arranged in the side wall of a main tank assembly main body, and the switching shaft is in transmission connection with the switching sliding seat;

an inner magnetic ring in the switching linkage assembly is connected to the outer side surface of the outer wall cleaning disc, an outer magnetic ring is arranged in the outer wall of the main tank assembly body in a sliding mode and is connected with the inner magnetic ring in a magnetic force mode, the outer side of the outer magnetic ring is connected with a first reversing connecting plate and a second reversing connecting plate, the inner top surfaces of the first reversing connecting plate and the second reversing connecting plate are both elastically connected with reversing elastic pieces, the front end of a reversing rod is fixedly inserted into the outer shaft end of the switching shaft, the rear end of the reversing rod is connected with a reversing connecting rod in a rotating mode, the rear end of the reversing connecting rod is connected with a reversing slide rod in a rotating mode, the horizontal elastic connection of the rear end of the reversing slide rod is arranged in the cavity wall of the main tank assembly body, and a reversing sliding table is connected to the position, corresponding to the two groups of reversing elastic pieces, of the main surface of the reversing connecting rod.

Furthermore, the outer end of the reversing sliding table is of an arc boss structure, the reversing elastic sheet is of an asymmetric sharp-angle inclined surface structure, and the inclined surface on one side of the sharp angle is larger than the inclined surface on the other side of the sharp angle.

Further, the main tank assembly comprises a main tank body, a bottom cover and a base, the main tank body is of a cylindrical cavity structure with an upper opening and a lower opening, the bottom cover is connected to the lower end of the main tank body, the array bases are evenly connected to the outer wall of the bottom end of the bottom cover, the upper end of the main tank body is connected with the top cover, a main water inlet is formed in the middle of the top cover, and a main water outlet is formed in the middle of the bottom cover and the position corresponding to the main water inlet.

Further, it divides the pipe to wash the assembly still including intaking, the return water divides the pipe, the sealed grafting of total inlet tube is installed in total inlet, the sealed grafting of total outlet pipe is installed in total outlet, the even lateral wall lower extreme of connecting at total inlet tube of branch pipe is intake to the array, the end that the branch pipe was intake to every group is all horizontally be connected with the top gland, the even upper end at total outlet pipe lateral wall of connecting is divided to the array return water, the equal horizontally end gland that is connected of front end that the branch pipe was intake to every group return water, and every group end gland corresponds from top to bottom with the top gland, all sealed crimping has the reverse osmosis mold core between top gland that corresponds from top to bottom of every group and the end gland.

Furthermore, the combined wall scraping assembly further comprises a water return cavity, a sliding guide seat, a hydrodynamic water inlet pipe and a spiral fan wheel outer seat, the bottom surface of the water return cavity is connected to the top end of the main water outlet pipe, the lower end of the hydrodynamic water return pipe is inserted into the top end of the water return cavity in a sealing mode, a water return connecting pipe is connected to the side wall of the water return cavity, a water return connecting pipe seat is arranged at a position, corresponding to the water return connecting pipe, on the side wall of the main water inlet pipe, a pipeline of the water return connecting pipe is connected with the water return connecting pipe seat after penetrating to the outer side of the cavity wall of the bottom cover in a sealing mode, and a one-way valve is connected to the position, close to the water return connecting pipe seat, of a main pipeline of the water return connecting pipe; cleaning brush positions are arranged on the main surface of the outer wall cleaning disc and the positions corresponding to the multiple groups of reverse osmosis mold cores, and the outer walls of the multiple groups of cleaning brushes are respectively clamped and installed in the cleaning brush positions; the sliding guide seat is connected and installed in the middle of the outer wall cleaning disc and is connected in a main pipeline of the hydrodynamic water return pipe in a sliding mode; a hydrodynamic cavity bottom cover is connected below the cavity of the hydrodynamic cavity, a screw rod top seat is arranged at the position, corresponding to the movable screw rod, of the bottom end face of the hydrodynamic cavity bottom cover, a bottom coupling seat is fixedly connected in the outer wall of the water return cavity, a screw rod base is arranged at the position, corresponding to the screw rod top seat, of the top end of the bottom coupling seat, the lower end of the movable screw rod is rotatably connected in the screw rod base, and the upper end of the movable screw rod is rotatably connected in the screw rod top seat; the water inlet end of the upper side of the hydrodynamic water inlet pipe is communicated with the bottom water path of the main water inlet pipe, a plurality of sets of hydrodynamic water inlets are formed in the positions, corresponding to the water outlet end of the hydrodynamic water inlet pipe, of the top surface of the hydrodynamic cavity, different water outlet ends of the hydrodynamic water inlet pipe are respectively connected into the corresponding hydrodynamic water inlets, a plurality of sets of hydrodynamic water return ports are formed in the main surface of the hydrodynamic cavity bottom cover, and different water inlet ends of the hydrodynamic water return pipes are respectively connected into the corresponding hydrodynamic water return ports; the middle position of the inner bottom surface of the hydrodynamic cavity is provided with a spiral fan wheel inner seat, the top shaft end of the spiral fan wheel is rotatably connected in the spiral fan wheel inner seat, the spiral fan wheel outer seat is arranged at the middle position of the hydrodynamic cavity bottom cover and at the position corresponding to the spiral fan wheel inner seat, the spiral fan wheel outer seat is connected with a rotary sealing ring, and the lower shaft end of the spiral fan wheel is fixedly connected with the hydrodynamic bevel gear after being hermetically and rotatably inserted to the outer side of the hydrodynamic cavity bottom cover from a water return connecting pipe.

Furthermore, the water-driven water inlet pipe is of a structure with one inlet and multiple outlets, the water outlet end of the water-driven water inlet pipe is not located in the center of the top surface of the water-driven cavity, the water-driven water return pipe is of a structure with one inlet and one outlet, and the water inlet end of the water-driven water return pipe is not located in the center of the main surface of the bottom cover of the water-driven cavity.

Furthermore, the reciprocating switching assembly further comprises a reversing bevel gear, a switching shaft seat, a second rotating shaft, a switching seat, a switching rod, a switching shaft position and a switching connecting rod, wherein the reversing bevel gear is meshed at one side of the hydrodynamic bevel gear, the bottom surface of the hydrodynamic cavity bottom cover is connected with the reversing shaft seat at a position corresponding to the reversing bevel gear, the reversing shaft is rotatably connected in the reversing shaft seat, the reversing bevel gear is fixedly inserted in the reversing shaft, the front end of the reversing shaft is also fixedly inserted with a reversing connection bevel gear, one side of the reversing connection bevel gear is meshed with the switching bevel gear, the switching bevel gear is fixedly inserted in the switching shaft, the switching shaft is rotatably connected in the switching shaft seat, the switching shaft seat is fixedly connected at the bottom surface of the hydrodynamic cavity bottom cover, and the first rotating gear is fixedly inserted at the top end of the switching shaft; a second rotating shaft seat is fixedly connected to the position, corresponding to the second rotating gear, of the bottom surface of the hydrodynamic cavity bottom cover, the second rotating shaft is rotatably connected in the second rotating shaft seat, and the second rotating gear is fixedly connected to the shaft top end of the second rotating shaft in an inserting mode; the one end swivelling joint that switches the seat is in switching slide outer axial plane one end, the outer end of switching the seat is pegged graft and is fixed with the switching even post, the one end swivelling joint of switching lever switches the axle top of even post, the switching axle position is seted up on main tank body lateral wall and is switched even position that the post corresponds, the erection joint has the switching sealing washer in the switching axle position, the sealed swivelling joint of switching axle is in switching the sealing washer, the one end grafting of switching connecting rod is fixed in the axle inner of switching axle, flexible spout has been seted up to the principal face of switching lever, it is fixed with flexible slide to connect on the principal face of switching connecting rod and the position that flexible spout corresponds, flexible slide sliding seat sliding connection is in flexible spout.

Further, the axis of the switching connecting column is perpendicular to the rotation center of the switching sliding seat.

Furthermore, the switching linkage assembly also comprises an outer magnetic ring seat, a linkage plate and a reversing slide seat, wherein the outer magnetic ring seat is arranged on the outer wall of the main tank body in a sliding manner and corresponds to the outer magnetic ring, and the outer magnetic ring is fixedly connected to the top end face of the outer magnetic ring seat; the linkage moving plate is connected to the outer end of the outer magnetic ring seat and corresponds to the reversing connecting rod, and the first reversing yoke plate and the second reversing yoke plate are fixedly connected to the outer end of the first reversing yoke plate; a slide seat connecting plate is fixedly connected to the position, corresponding to the reversing slide rod, of the outer wall of the main tank body, the reversing slide seat is fixedly connected to the outer end of the slide seat connecting plate, the rear end of the reversing slide rod is connected into the reversing slide seat in a sliding manner, the rear end face of the reversing slide rod is fixedly connected with a pressure spring, and the other end of the pressure spring is fixedly connected to the inner bottom face of the reversing slide seat; a second limiting column is arranged on one side of the reversing rod, a first limiting column is arranged on the other side of the reversing rod, the second limiting column and the first limiting column are fixedly connected to the outer wall of the main tank body, the second limiting column and the first limiting column are located on the rotating path of the reversing rod main body, when the first driving coupling gear is meshed with the first rotating gear, the upper side surface of the reversing rod is in limiting contact with the first limiting column, and when the second driving coupling gear is meshed with the second rotating gear, the lower side surface of the reversing rod is in contact with the second limiting column; the large inclined plane of one group of reversing elastic sheets arranged in the first reversing yoke plate faces downwards, the large inclined plane of the other group of reversing elastic sheets arranged in the second reversing yoke plate faces upwards, the outer wall cleaning disc moves upwards when the second driving yoke gear is meshed with the second rotating gear, and the outer wall cleaning disc moves downwards when the first driving yoke gear is meshed with the first rotating gear; the inner end surfaces of the first reversing yoke plate and the second reversing yoke plate are provided with spring sheet grooves corresponding to the reversing spring sheets, and the two groups of reversing spring sheets are respectively clamped in the corresponding spring sheet grooves.

Furthermore, a plurality of groups of linkage sliding seats are arranged on the main surface of the outer magnetic ring seat, linkage sliding columns are fixedly connected to the positions, corresponding to the linkage sliding seats, of the upper end and the lower end of the outer wall of the main tank body, and the plurality of groups of linkage sliding seats are connected in the corresponding linkage sliding columns in a half sliding mode.

Furthermore, the elastic force of the pressure spring to the reversing connecting rod and the reversing sliding table through the reversing slide rod is smaller than the elastic thrust of the reversing elastic sheet small inclined plane to the reversing sliding table, but is larger than the elastic thrust of the reversing elastic sheet large inclined plane to the reversing sliding table.

Compared with the prior art, the cleaning device for the reverse osmosis membrane component provided by the invention has the following advantages:

(1) according to the invention, the main tank body with the diameter being several times larger than the outer diameter of the reverse osmosis mold core is arranged in the main tank assembly, so that a plurality of groups of reverse osmosis mold cores can be simultaneously arranged in the main tank assembly for cleaning, namely, the reverse osmosis mold cores can be cleaned in batches through single operation.

(2) The invention is also provided with a combined wall scraping assembly and a reciprocating switching assembly, wherein a hydrodynamic cavity in the combined wall scraping assembly is communicated with cleaning water entering a main water inlet pipe in a circulating manner, when the main water inlet pipe is communicated for rinsing, a spiral fan wheel in the combined wall scraping assembly synchronously rotates, the shaft end of the spiral fan wheel is meshed with a first rotating gear through a transmission mechanism, the first rotating gear is meshed with a second rotating gear, an outer wall cleaning disc in the combined wall scraping assembly is connected in a movable lead screw in a matching manner through a movable sliding block, a first driving coupling gear and a second driving coupling gear are connected in the movable lead screw in a sliding manner, the first driving coupling gear and the second driving coupling gear can be switched in a matching manner between the first rotating gear and the second rotating gear, the circulating reciprocating movement of an outer wall cleaning disc can be realized in the process of the water passage circulation of the main water inlet pipe, namely, when the filter core material in the reverse osmosis mold core is cleaned in a water way, the cleaning brush in the outer wall cleaning dish can scrape the outer wall of reverse osmosis mold core and wash, can synchronous strike off attached to the pollutant on the reverse osmosis mold core outer wall, and the cleaning performance is good, and need not external energy to the process of striking off of reverse osmosis mold core outer wall, and is energy-concerving and environment-protective.

(3) Furthermore, the invention is also provided with a switching linkage assembly which can realize the circular switching of the reciprocating movement of the outer wall cleaning disc driven by the self movement of the outer wall cleaning disc, can realize the synchronous movement of a first reversing linkage plate and a second reversing linkage plate which are connected with the outer magnetic ring when the outer wall cleaning disc moves through the magnetic force matching of an inner magnetic ring arranged at the outer end of the outer wall cleaning disc and an outer magnetic ring arranged at the outer wall of the main tank body, can realize the elastic positioning switching of the side surface of the reversing rod between a first limit column and a second limit column through the dynamic elastic matching of a reversing elastic sheet connected at the inner side of the front ends of the first reversing linkage plate and the second reversing linkage plate and a reversing connecting rod and a reversing sliding table under the elastic force of a pressure spring, and can realize the automatic switching in the moving process of the outer wall cleaning disc, no electric control is needed, and the error rate is low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic diagram of the overall structure of a cleaning device for a reverse osmosis membrane module provided by the invention;

FIG. 2 is a schematic structural view of a main tank assembly of the present invention;

FIG. 3 is a schematic structural view of a cleaning assembly of the present invention;

FIG. 4 is a schematic view of the mounting structure of the combined wall scraping assembly of the present invention;

FIG. 5 is a schematic structural view of the combined wall scraping assembly of the present invention;

FIG. 6 is a schematic view of the spiral fan wheel portion of the combined wall scraping assembly of the present invention;

FIG. 7 is a schematic view of a first perspective of the reciprocating switching assembly of the present invention;

FIG. 8 is a schematic view of a second perspective of the reciprocation switching assembly of the present invention;

FIG. 9 is a schematic view of an installation structure of the switching and shifting assembly of the present invention;

FIG. 10 is a schematic view of a switching and joint-shifting assembly according to the present invention;

FIG. 11 is a schematic view of a partial structure of the switching and shifting assembly of the present invention;

fig. 12 is a schematic structural view of a reversing spring and a reversing sliding table in the switching joint movement assembly of the present invention.

Reference numerals: 1. a main tank assembly; 2. cleaning the assembly; 3. a reverse osmosis mold core; 4. a combined wall scraping assembly; 5. a reciprocating switching assembly; 6. switching a joint movement assembly; 101. a main tank body; 102. a bottom cover; 103. a base; 104. a top cover; 105. a main water inlet; 106. a main water outlet; 201. a main water inlet pipe; 202. water inlet branch pipes; 203. a top gland; 204. a main water outlet pipe; 205. returning water to be branched; 206. a bottom gland; 401. a hydrodynamic chamber; 402. a water-driven return pipe; 403. a water return cavity; 404. a backwater connecting pipe; 405. a backwater connecting pipe seat; 406. a one-way valve; 407. an outer wall cleaning disc; 408. cleaning a brushing position; 409. cleaning brushes; 410. a sliding guide seat; 411. a hydrodynamic cavity bottom cover; 412. a screw top seat; 413. a base coupling seat; 414. a lead screw base; 415. moving the lead screw; 416. moving the slide block; 417. switching the square tenon; 418. a water-driven water inlet pipe; 419. a hydrodynamic water inlet; 420. a water dynamic water return port; 421. an inner seat of the spiral fan wheel; 422. a helical fan wheel; 423. an outer seat of the spiral fan wheel; 424. rotating the sealing ring; 425. a hydrodynamic bevel gear; 501. a reversing bevel gear; 502. a reversing shaft; 503. a reversing shaft seat; 504. the reversing connection bevel gear; 505. converting a bevel gear; 506. a conversion shaft; 507. a shaft seat is converted; 508. a first rotating gear; 509. a second rotating gear; 510. a second rotating shaft; 511. a second rotary shaft seat; 512. switching the sliding seat; 513. a first drive coupling gear; 514. a second drive coupling gear; 515. a switching seat; 516. switching the connecting columns; 517. a switch lever; 518. switching the shaft position; 519. a switching shaft; 520. a switching link; 521. a telescopic chute; 522. a telescopic slide seat; 523. switching the sealing ring; 601. an inner magnetic ring; 602. an outer magnetic ring seat; 603. an outer magnetic ring; 604. a linkage sliding seat; 605. a sliding column is moved in a linkage manner; 606. a linkage plate; 607. a first reversing yoke plate; 608. a second commutation yoke plate; 609. a reversing elastic sheet; 610. a reversing lever; 611. a reversing connecting rod; 612. a reversing slide bar; 613. a reversing slide carriage; 614. a slide carriage yoke plate; 615. compressing the spring; 616. a second limit post; 617. a first limit post; 618. a reversing sliding table; 619. a spring sheet groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example (b): referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12, a main tank assembly 1 is a structural base of the apparatus, a total inlet pipe 201 of a cleaning assembly 2 is connected to an upper end of an inner cavity of the main tank assembly 1, a total outlet pipe 204 is connected to a lower end of the inner cavity of the main tank assembly 1, a plurality of sets of reverse osmosis cores 3 are connected between the total inlet pipe 201 and the total outlet pipe 204 in a pressing manner, a hydrodynamic cavity 401 of a combined wall scraping assembly 4 is in water communication with the total inlet pipe 201, a hydrodynamic return pipe 402 is connected to a lower end of the hydrodynamic cavity 401, a lower end of the hydrodynamic return pipe 402 is in communication with the total inlet pipe 201, a one-way valve 406 is arranged in a pipeline connecting the hydrodynamic return pipe 402 and the total inlet pipe 201, a center of an outer wall cleaning disc 407 is slidably arranged in the hydrodynamic return pipe 402, a plurality of sets of reverse osmosis cleaning brushes 409 are clamped at positions corresponding to the main surface of the outer wall cleaning disc 407 and the sets of the reverse osmosis cores 3, an inner brush of the cleaning brush 409 is in interference fit with the outer wall of the reverse osmosis mold core 3, the movable lead screw 415 is arranged on one side of the water-powered water return pipe 402 in a rotating mode in parallel, a movable sliding block 416 is connected to the position, corresponding to the movable lead screw 415, of the main surface of the outer wall cleaning disc 407, the movable sliding block 416 is matched in the movable lead screw 415, the switching square tenon 417 is arranged at the upper end of the movable lead screw 415, the spiral fan wheel 422 is arranged in the water-powered cavity 401 in a rotating mode, and the bottom shaft end of the spiral fan wheel 422 is connected with a water-powered bevel gear 425; a first rotating gear 508 in the reciprocating switching assembly 5 is horizontally and rotatably arranged on one side of a moving screw 415, the first rotating gear 508 is in transmission connection with a water bevel gear 425, a second rotating gear 509 is meshed on one side of the first rotating gear 508, a certain height difference exists between the second rotating gear 509 and the first rotating gear 508, a switching sliding seat 512 is slidably inserted in a switching square tenon 417, a first driving coupling gear 513 is fixedly inserted on one side of the outer shaft end of the switching sliding seat 512, a second driving coupling gear 514 is fixedly inserted on the other side of the outer shaft end of the switching sliding seat 512, a switching shaft 519 is hermetically and rotatably arranged in the side wall of the main body of the main tank assembly 1, the switching shaft 519 is in transmission connection with the switching sliding seat 512, an inner magnetic ring 601 in the switching coupling assembly 6 is connected to the outer side surface of an outer wall cleaning disc 407, an outer magnetic ring 603 is slidably arranged in the outer wall of the main body of the main tank assembly 1, the outer magnetic ring 603 is connected with an inner magnetic ring 601, a first reversing coupling plate 607 and a second reversing coupling plate 608 are connected to the outer side of the outer ring 603, the inner top surfaces of the first reversing yoke plate 607 and the second reversing yoke plate 608 are elastically connected with reversing elastic sheets 609, the front end of a reversing rod 610 is fixedly inserted at the outer shaft end of the switching shaft 519, the rear end of the reversing rod 610 is screwed with a reversing connecting rod 611, the rear end of the reversing connecting rod 611 is screwed with a reversing slide rod 612, the rear end of the reversing slide rod 612 is horizontally and elastically connected in the cavity wall of the main body of the main tank assembly 1, and the main surface of the reversing connecting rod 611 is connected with reversing sliding tables 618 at the positions corresponding to the two groups of reversing elastic sheets 609.

The concrete structure of the main tank assembly 1 is as shown in fig. 2, the main tank body 101 is a cylindrical cavity structure with an upper opening and a lower opening, the bottom cover 102 is connected to the lower end of the main tank body 101, the array bases 103 are uniformly connected to the outer wall of the bottom end of the bottom cover 102, the device is integrally placed on an operation plane through the bases 103, the upper end of the main tank body 101 is connected with the top cover 104, the total water inlet 105 is arranged at the middle position of the top cover 104, and the total water outlet 106 is arranged at the position, corresponding to the total water inlet 105, of the middle position of the bottom cover 102.

The specific structure of the cleaning assembly 2 is shown in fig. 3, a main water inlet pipe 201 is installed in a main water inlet 105 in a sealing and inserting mode, a main water outlet pipe 204 is installed in a main water outlet 106 in a sealing and inserting mode, a plurality of groups of water inlet branch pipes 202 are evenly connected to the lower end of the side wall of the main water inlet pipe 201, the tail end of each group of water inlet branch pipes 202 is horizontally connected with a top pressing cover 203, a plurality of groups of water return branch pipes 205 are evenly connected to the upper end of the side wall of the main water outlet pipe 204, the front end of each group of water return branch pipes 205 is horizontally connected with a bottom pressing cover 206, each group of bottom pressing covers 206 vertically correspond to the top pressing covers 203, and reverse osmosis mold cores 3 are connected between the top pressing covers 203 and the bottom pressing covers 206 vertically corresponding to each group in a sealing and pressing mode.

Specifically, the structure of the combined scraping wall assembly 4 is as shown in fig. 4, 5 and 6, the bottom surface of the water return cavity 403 is connected to the top end of the water outlet pipe 204, the lower end of the water-driven water return pipe 402 is inserted into the top end of the water return cavity 403 in a sealing manner, the side wall of the water return cavity 403 is connected with the water return connecting pipe 404, the side wall of the total water inlet pipe 201 corresponding to the water return connecting pipe 404 is provided with the water return connecting pipe seat 405, the pipeline of the water return connecting pipe 404 is connected with the water return connecting pipe seat 405 after being inserted into the outer side of the cavity wall of the bottom cover 102 in a sealing manner, the one-way valve 406 is connected to the position of the main pipeline of the water return connecting pipe 404 close to the water return connecting pipe seat 405, the main surface of the outer wall cleaning disc 407 and the positions corresponding to the sets of the reverse osmosis mold cores 3 are provided with the cleaning brush positions 408, the outer walls of the sets of cleaning brushes 409 are respectively installed in the cleaning brush positions 408 in a clamping manner, the sliding guide seat 410 is installed at the middle position of the outer wall cleaning disc 407, and the sliding guide seat 410 is connected to the main pipeline of the water return pipe 402 in a sliding manner, a hydrodynamic cavity bottom cover 411 is connected below the cavity of the hydrodynamic cavity 401, a screw rod top seat 412 is arranged at a position corresponding to the bottom end surface of the hydrodynamic cavity bottom cover 411 and the movable screw rod 415, a bottom coupling seat 413 is fixedly connected in the outer wall of the water return cavity 403, a screw rod base 414 is arranged at a position corresponding to the screw rod top seat 412 at the top end of the bottom coupling seat 413, the lower end of the movable screw rod 415 is rotatably connected in the screw rod base 414, the upper end of the movable screw rod 415 is rotatably connected in the screw rod top seat 412, a water inlet end at the upper side of the hydrodynamic water inlet pipe 418 is communicated with a bottom water channel of the main water inlet pipe 201, a plurality of sets of hydrodynamic water inlets 419 are arranged at positions corresponding to the top surface of the hydrodynamic cavity 401 and the water outlet end of the hydrodynamic water inlet pipe 418, different water outlet ends of the hydrodynamic water inlet pipe 418 are respectively connected in corresponding hydrodynamic water inlets 419, a plurality of hydrodynamic water return ports 420 are arranged on the main surface of the hydrodynamic cavity bottom cover 411, different water inlet ends of the hydrodynamic water return pipe 402 are respectively connected in corresponding hydrodynamic water return ports 420, the middle position of the bottom surface in the water driving cavity 401 is provided with a spiral fan wheel inner seat 421, the top shaft end of the spiral fan wheel 422 is rotatably connected in the spiral fan wheel inner seat 421, a spiral fan wheel outer seat 423 is arranged at the middle position of the water driving cavity bottom cover 411 and at the position corresponding to the spiral fan wheel inner seat 421, a rotary sealing ring 424 is connected in the spiral fan wheel outer seat 423, and the lower shaft end of the spiral fan wheel 422 is fixedly connected with a water driving bevel gear 425 after being hermetically and rotatably inserted to the outer side of the water driving cavity bottom cover 411 from a water return connecting pipe 404.

Specifically, the structure of the reciprocating switching assembly 5 is as shown in fig. 7 and 8, a reversing bevel gear 501 is engaged on one side of a water driving bevel gear 425, a reversing shaft seat 503 is connected on the bottom surface of a water driving cavity bottom cover 411 at a position corresponding to the reversing bevel gear 501, a reversing shaft 502 is rotatably connected in the reversing shaft seat 503, the reversing bevel gear 501 is fixedly inserted in the reversing shaft 502, a reversing connection bevel gear 504 is further fixedly inserted in the front end of the reversing shaft 502, a conversion bevel gear 505 is engaged on one side of the reversing connection bevel gear 504, the conversion bevel gear 505 is fixedly inserted in the conversion shaft 506, the conversion shaft 506 is rotatably connected in the conversion shaft seat 507, the conversion shaft seat 507 is fixedly connected on the bottom surface of the water driving cavity bottom cover 411, a first rotation gear 508 is fixedly connected on the top end of the conversion shaft 506, a second rotation shaft seat 511 is fixedly connected on the bottom surface of the water driving cavity bottom cover 411 at a position corresponding to the second rotation gear 509, the second rotating shaft 510 is rotatably connected in a second rotating shaft seat 511, the second rotating gear 509 is fixedly connected at the top end of the second rotating shaft 510 in an inserting manner, one end of a switching seat 515 is rotatably connected at one end of the outer axial surface of a switching slide seat 512, a switching connecting column 516 is fixedly inserted at the outer end of the switching seat 515, one end of a switching rod 517 is rotatably connected at the top end of the switching connecting column 516, a switching shaft 518 is arranged on the side wall of the main tank body 101 at a position corresponding to the switching connecting column 516, a switching sealing ring 523 is mounted and connected in the switching shaft 518, the switching shaft 519 is rotatably connected in the switching sealing ring 523 in a sealing manner, one end of a switching link 520 is fixedly inserted at the inner axial end of the switching shaft 519, a telescopic slide groove 521 is formed in a main surface of the switching rod 517, a telescopic slide seat 522 is fixedly connected at a position corresponding to the telescopic slide groove 521 on the main surface of the switching link 520, and the telescopic slide seat 522 is slidably connected in the telescopic slide groove 521.

The switching shaft 519 is hermetically screwed in the switching sealing ring 523, one end of the switching connecting rod 520 is fixedly inserted into the inner end of the switching shaft 519, the switching connecting rod 520 rotates along with the rotation of the switching shaft 519, so that the switching connecting rod 520 and the switching rod 517 are driven to rotate and synchronously stretch and cooperate, and the switching sliding seat 512 connected with the switching rod 517 through the switching connecting column 516 is driven to perform transverse switching movement;

specifically, the structure of the switching linkage assembly 6 is as shown in fig. 9, 10, 11 and 12, an outer magnetic ring seat 602 is slidably disposed on the outer wall of the main tank 101 at a position corresponding to the outer magnetic ring 603, the outer magnetic ring 603 is fixedly connected to the top end surface of the outer magnetic ring seat 602, a linkage plate 606 is connected to the outer end of the outer magnetic ring seat 602 at a position corresponding to the reversing link 611, both a first reversing link 607 and a second reversing link 608 are fixedly connected to the outer end of the first reversing link 607, a carriage link 614 is fixedly connected to the outer wall of the main tank 101 at a position corresponding to the reversing slide rod 612, a reversing slide 613 is fixedly connected to the outer end of the carriage 614, the rear end of the reversing slide rod 612 is slidably connected to the reversing slide 613, a compression spring 615 is fixedly connected to the rear end surface of the reversing slide 612, the other end of the compression spring 615 is fixedly connected to the inner bottom surface of the reversing slide 613, a second limit post 616 is disposed on one side of the reversing slide 610, the other side is provided with a first limit post 617, the second limit post 616 and the first limit post 617 are both fixedly connected to the outer wall of the main tank 101, and the second limit post 616 and the first limit post 617 are located on the rotation path of the main body of the reversing lever 610, when the first driving coupling gear 513 is engaged with the first rotating gear 508, the upper side of the reversing lever 610 is limited and abutted against the first limit post 617, when the second driving coupling gear 514 is engaged with the second rotating gear 509, the lower side of the reversing lever 610 is abutted against the second limit post 616, the large inclined surface of one set of reversing spring 609 installed in the first reversing coupling plate 607 is downward, the large inclined surface of the other set of reversing spring 609 installed in the second reversing coupling plate 608 is upward, when the second driving coupling gear 514 is engaged with the second rotating gear 509, the outer wall cleaning disc 407 moves upward, when the first driving coupling gear 513 is engaged with the first rotating gear 508, the outer wall cleaning disc 407 moves downward, the inner end surfaces of the first reversing yoke plate 607 and the second reversing yoke plate 608 are provided with spring plate grooves 619 at positions corresponding to the reversing spring plates 609, and the two groups of reversing spring plates 609 are respectively clamped in the corresponding spring plate grooves 619.

The working principle is as follows:

in the installation of the invention, the invention is connected with the water outlet end of external cleaning water through a main water inlet pipe 201 in a cleaning assembly 2 and is connected with an external cleaning water discharge end through a main water outlet pipe 204;

the compression joint of the filter element to be cleaned is realized, the top cover 104 is separated from the main tank body 101 by opening the top cover 104, the communication between the backwater connecting pipe 404 and the backwater connecting pipe seat 405 is removed, the main water inlet pipe 201, the water inlet branch pipe 202 and the top pressure cover 203 move outwards along with the top cover 104, and the lower end of the main water inlet pipe 201 is separated from the insertion matching with the water dynamic water inlet pipe 418 in the combined wall scraping assembly 4;

respectively loading the lower ends of the multiple groups of reverse osmosis mould cores 3 into different bottom pressing covers 206, pressing the multiple groups of top pressing covers 203 on the upper ends of the reverse osmosis mould cores 3, simultaneously forming the inserting fit between the lower ends of the main water inlet pipes 201 and the water driving water inlet pipes 418, and fixedly connecting the top cover 104 with the upper end of the main tank body 101;

at this time, after cleaning water is opened, cleaning work can be performed on each group of reverse osmosis mold cores 3, external cleaning water enters the reverse osmosis mold cores 3 through the main water inlet pipe 201 and the plurality of groups of water inlet branch pipes 202 connected with the main water inlet pipe 201, and is discharged through the plurality of groups of water return branch pipes 205 and the main water outlet pipe 204 connected with the water return branch pipes 205, and the main body of the reverse osmosis mold core 3 can be cleaned by cleaning the filter core structure in the reverse osmosis mold core 3 for a certain time;

synchronously, cleaning water entering the main water inlet pipe 201 enters the water dynamic cavity 401 in the combined wall scraping assembly 4 to drive the spiral fan wheel 422 to rotate, the spiral fan wheel 422 drives the water dynamic bevel gear 425 to coaxially rotate, the reciprocating switching assembly 5 cleans the reciprocating switching assembly 2, the reciprocating switching assembly 5 and the reversing bevel gear 501 in the reciprocating switching assembly 5 form matched transmission to further drive the reversing bevel gear 501 and the reversing connection bevel gear 504 to synchronously rotate, the reversing connection bevel gear 504 and the conversion bevel gear 505 form matched transmission to further drive the first rotating gear 508 to rotate, and the first rotating gear 508 and the second rotating gear 509 are matched for transmission to drive the second rotating gear 509 and the first rotating gear 508 to synchronously rotate;

at this time, under the action of the elastic force of the pressure spring 615 in the switching linkage assembly 6, the side surface of the main body of the reversing lever 610 is driven to elastically abut against the first limiting post 617 or the second limiting post 616, when the two side surfaces of the reversing lever 610 abut against the first limiting post 617 or the second limiting post 616, the reversing lever 610 keeps the rotating static state of the switching connecting rod 520 through the switching shaft 519, the switching connecting rod 520 drives the switching seat 515 and the switching slide seat 512 through the cooperation with the switching lever 517, so that the first rotating gear 508 and the first driving gear 513 are in the matching state at this time, or the second rotating gear 509 and the second driving gear 514 are in the matching state, and the moving screw 415 can be driven to rotate in the forward and reverse directions;

because the second rotating gear 509 and the first rotating gear 508 are in staggered engagement, that is, the engaging tooth surfaces of the second rotating gear 509 and the first rotating gear 508 have both a portion engaged with each other and a tooth surface beyond the engaged portion, the forward and reverse rotation switching of the moving screw 415 coaxially connected with the second driving gear 514 and the first driving gear 513 can be realized by the engagement of the second rotating gear 509 and the first rotating gear 508 and the switching and matching of the second driving gear 514 and the first driving gear 513 on the tooth surfaces beyond the engaged portion between the second rotating gear 509 and the first rotating gear 508;

at this time, the initial position of the outer wall cleaning disc 407 may be set at the positions corresponding to the two ends of the outer wall of the reverse osmosis mold core 3 according to the elastic contact position of the side surface of the main body of the reversing rod 610, and the outer wall cleaning disc 407 may synchronously drive the movement of the outer magnetic ring seat 602 and the first and second reversing

link plates

607 and 608 connected to the outer magnetic ring seat 602 through the magnetic cooperation of the inner magnetic ring 601 and the outer magnetic ring 603;

when the lower side of the reversing rod 610 is abutted against the second limiting column 616, the outer wall cleaning disc 407 is positioned at the upper end of the reverse osmosis mold core 3, and the reversing elastic sheet 609 at the inner side of the first reversing connecting plate 607 is positioned at the limiting position below the reversing sliding table 618, at this time, the outer wall cleaning disc 407 is in the limiting state of moving upwards, the reversing elastic sheet 609 at the inner side of the first reversing connecting plate 607 elastically pokes the reversing sliding table 618 and the reversing connecting rod 611 to the upper side of the reversing rod 610 to be abutted against the first limiting column 617, the rotating state of the movable lead screw 415 is reversed, so that the outer wall cleaning disc 407 can be driven to move downwards, at this time, the reversing elastic sheet 609 at the inner side of the first reversing connecting plate 607 is wholly positioned at the upper side of the reversing sliding table 618, after the rotating state of the movable lead screw 415 is reversed, because the reversing elastic sheet 609 at the inner side of the first reversing connecting plate 607 has a large inclined surface downward, the elastic force pushing of the large inclined surface is smaller than the elastic force pushing of the pressure spring 615 to the reversing rod 610, therefore, the large inclined surface of the reversing elastic sheet 609 on the inner side of the first reversing yoke plate 607 will cross over the reversing sliding table 618 to move downwards continuously;

when the upper side of the reversing rod 610 is abutted against the first limiting post 617, the outer wall cleaning disc 407 is positioned at the lower end of the reverse osmosis mold core 3, and the reversing elastic sheet 609 inside the second reversing link plate 608 is positioned at the limiting position above the reversing sliding table 618, at this time, the outer wall cleaning disc 407 is in the limiting state of moving downwards, the reversing elastic sheet 609 inside the second reversing link plate 608 elastically pokes the reversing sliding table 618 and the reversing connecting rod 611 to the lower side of the reversing rod 610 to be abutted against the second limiting post 616, the rotating state of the movable lead screw 415 is relatively reversed, so that the outer wall cleaning disc 407 can be driven to move upwards, at this time, the reversing elastic sheet 609 inside the second reversing link plate 608 is integrally positioned at the upper side of the reversing sliding table 618, after the rotating state of the movable lead screw 415 is relatively reversed, because the reversing elastic sheet 609 inside the second reversing link plate 608 has a large inclined surface upwards, and the elastic pushing force of the large inclined surface is smaller than the elastic pushing force of the pressure spring 615 on the reversing rod 610, therefore, the large inclined surface of the reversing elastic sheet 609 on the inner side of the reversing elastic sheet 609 can stride over the reversing sliding table 618 to continuously move upwards;

by such circulation, through the elastic poking and matching of the group of reversing spring pieces 609 on the inner side of the first reversing yoke 607 and the other group of reversing spring pieces 609 on the inner side of the second reversing yoke 608 to the reversing sliding table 618, the reversing rod 610 can be elastically attached and matched between the second limiting column 616 and the first limiting column 617, and the forward and reverse rotation of the movable lead screw 415 can be converted, so that the reciprocating movement of the outer wall cleaning disc 407 can be realized, and the outer wall cleaning disc 407 can drive the cleaning brush 409 to carry out reciprocating scraping on pollutants on the outer wall of the reverse osmosis mold core 3.

Preferably, the water inlet pipe 418 has a structure with one inlet and multiple outlets, the water outlet end of the water inlet pipe 418 is not located at the center of the top surface of the water moving cavity 401, the water return pipe 402 has a structure with one inlet and one outlet, and the water inlet end of the water return pipe 402 is not located at the center of the main surface of the bottom cover 411 of the water moving cavity, so that the spiral impeller 422 is located at the center of the water moving cavity 401, and meanwhile, the stability of the rotation speed of the spiral impeller 422 can be ensured by the uniform surrounding type of water inlet and outlet formed by using the spiral impeller 422 as the center.

Preferably, the outer end of the reversing sliding table 618 is an arc-shaped boss structure, the reversing elastic sheet 609 is an asymmetric sharp-angled inclined surface structure, the inclined surface on one side of the sharp angle is larger than the inclined surface on the other side, and effective elastic thrust and elastic slipping of the reversing sliding table 618 can be achieved through different elastic internal stresses on two sides of the reversing elastic sheet 609.

Preferably, the elastic force of the pressure spring 615 to the reversing connecting rod 611 and the reversing sliding table 618 through the reversing sliding rod 612 is smaller than the elastic thrust of the reversing elastic sheet 609 to the reversing sliding table 618 on the small inclined surface, but is larger than the elastic thrust of the reversing elastic sheet 609 to the reversing sliding table 618 on the large inclined surface, so that the pushing fit when the small inclined surface of the elastic sheet 609 is in contact with the reversing sliding table 618 and the elastic slipping fit when the large inclined surface of the elastic sheet 609 is in contact with the reversing sliding table 618 can be realized.

Preferably, a plurality of sets of linkage sliding bases 604 are arranged on the main surface of the outer magnetic ring base 602, linkage sliding columns 605 are fixedly connected to the positions, corresponding to the linkage sliding bases 604, of the upper end and the lower end of the outer wall of the main tank 101, the plurality of sets of linkage sliding bases 604 are connected in the corresponding linkage sliding columns 605 in a sliding manner in half, and the movement precision and the stability of the outer magnetic ring base 602 can be guaranteed through the matching of the linkage sliding bases 604 and the linkage sliding columns 605.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a belt cleaning device of reverse osmosis membrane subassembly, includes main tank assembly (1), its characterized in that: the cleaning device also comprises a cleaning assembly (2), a combined wall scraping assembly (4), a reciprocating switching assembly (5) and a switching linkage assembly (6);

the cleaning assembly (2) comprises a main water inlet pipe (201) and a main water outlet pipe (204), the combined wall scraping assembly (4) comprises a water moving cavity (401), an outer wall cleaning disc (407), a movable lead screw (415), a switching square tenon (417) and a spiral fan wheel (422), the reciprocating switching assembly (5) comprises a first rotating gear (508), a second rotating gear (509), a switching sliding seat (512) and a switching shaft (519), and the switching combined moving assembly (6) comprises an inner magnetic ring (601), an outer magnetic ring (603) and a reversing rod (610);

the main tank assembly (1) is a structural matrix of the device, a main water inlet pipe (201) in the cleaning assembly (2) is connected to the upper end of an inner cavity of the main tank assembly (1), a main water outlet pipe (204) is connected to the lower end of the inner cavity of the main tank assembly (1), and a plurality of groups of reverse osmosis mold cores (3) are pressed between the main water inlet pipe (201) and the main water outlet pipe (204);

a water moving cavity (401) in a combined wall scraping assembly (4) is communicated with a water path of a main water inlet pipe (201), the lower end of the water moving cavity (401) is connected with a water moving water return pipe (402), the lower end of the water moving water return pipe (402) is communicated with the main water inlet pipe (201), a one-way valve (406) is arranged in a pipeline connecting the water moving water return pipe (402) and the main water inlet pipe (201), the center of an outer wall cleaning disc (407) is slidably arranged in the water moving water return pipe (402), a plurality of groups of cleaning brushes (409) are clamped on the positions of the main surface of the outer wall cleaning disc (407) corresponding to the plurality of groups of reverse osmosis mold cores (3), an inner brush of each cleaning brush (409) is in interference fit with the outer wall of the reverse osmosis mold core (3), a movable screw rod (415) is parallelly and rotatably arranged on one side of the water moving water return pipe (402), a movable sliding block (416) is connected on the position of the main surface of the outer wall cleaning disc (407) corresponding to the movable screw rod (415), the movable sliding block (416) is matched in the movable screw rod (415), the switching square tenon (417) is arranged at the upper end of the movable screw rod (415), the spiral fan wheel (422) is rotatably arranged in the water driving cavity (401), and the bottom shaft end of the spiral fan wheel (422) is connected with a water driving bevel gear (425); a first rotating gear (508) in a reciprocating switching assembly (5) is horizontally and rotatably arranged on one side of a moving screw rod (415), the first rotating gear (508) is in transmission connection with a water bevel gear (425), a second rotating gear (509) is meshed on one side of the first rotating gear (508), a certain height difference exists between the second rotating gear (509) and the first rotating gear (508), a switching sliding seat (512) is slidably inserted into a switching square tenon (417), a first driving coupling gear (513) is inserted into one side of the outer shaft end of the switching sliding seat (512), a second driving coupling gear (514) is inserted into the other side of the outer shaft end of the switching sliding seat (512), a switching shaft (519) is hermetically and rotatably arranged in the side wall of a main body of a main tank assembly (1), and the switching shaft (519) is in transmission connection with the switching sliding seat (512);

an inner magnetic ring (601) in the switching linkage assembly (6) is connected with the outer side surface of an outer wall cleaning disc (407), an outer magnetic ring (603) is arranged in the outer wall of the main body of the main tank assembly (1) in a sliding way, the outer magnetic ring (603) is magnetically connected with the inner magnetic ring (601), the outer side of the outer magnetic ring (603) is connected with a first reversing connection plate (607) and a second reversing connection plate (608), the inner top surfaces of the first reversing connection plate (607) and the second reversing connection plate (608) are both elastically connected with a reversing elastic sheet (609), the front end of a reversing rod (610) is fixedly inserted at the outer shaft end of a switching shaft (519), the rear end of the reversing rod (610) is rotatably connected with a reversing connection rod (611), the rear end of the reversing connection rod (611) is rotatably connected with a reversing slide rod (612), the rear end of the reversing slide rod (612) is horizontally and elastically connected in the cavity wall of the main body of the main tank assembly (1), and the main surface of the reversing connecting rod (611) is connected with a reversing sliding table (618) at a position corresponding to the two groups of reversing elastic sheets (609).

2. The cleaning device for the reverse osmosis membrane module according to claim 1, characterized in that: the main tank assembly (1) comprises a main tank body (101), a bottom cover (102) and a base (103), the main tank body (101) is of a cylindrical cavity structure with an upper opening and a lower opening, the bottom cover (102) is connected to the lower end of the main tank body (101), the array base (103) is uniformly connected to the outer wall of the bottom end of the bottom cover (102), the upper end of the main tank body (101) is connected with a top cover (104), a total water inlet (105) is formed in the middle of the top cover (104), and a total water outlet (106) is formed in the position, corresponding to the total water inlet (105), of the middle of the bottom cover (102).

3. The cleaning device for the reverse osmosis membrane module according to claim 2, characterized in that: the cleaning assembly (2) further comprises a water inlet branch pipe (202) and a water return branch pipe (205), a main water inlet pipe (201) is installed in a main water inlet (105) in a sealing and inserting mode, a main water outlet pipe (204) is installed in a main water outlet (106) in a sealing and inserting mode, a plurality of groups of water inlet branch pipes (202) are evenly connected to the lower end of the side wall of the main water inlet pipe (201), the tail end of each group of water inlet branch pipes (202) is horizontally connected with a top pressing cover (203), a plurality of groups of water return branch pipes (205) are evenly connected to the upper end of the side wall of the main water outlet pipe (204), the front end of each group of water return branch pipes (205) is horizontally connected with a bottom pressing cover (206), each group of bottom pressing covers (206) vertically correspond to the top pressing cover (203), and a reverse osmosis mold core (3) is hermetically pressed between the top pressing cover (203) and the bottom pressing cover (206) corresponding to each group vertically.

4. The cleaning device for the reverse osmosis membrane module according to claim 3, characterized in that: the combined wall scraping assembly (4) further comprises a water return cavity (403), a sliding guide seat (410), a hydrodynamic water inlet pipe (418) and a spiral fan wheel outer seat (423), the bottom surface of the water return cavity (403) is connected to the top end of the water main outlet pipe (204), the lower end of the hydrodynamic water return pipe (402) is in sealed insertion connection with the top end of the water return cavity (403), the side wall of the water return cavity (403) is connected with a water return connecting pipe (404), a water return connecting pipe seat (405) is arranged at a position, corresponding to the water return connecting pipe (404), of the side wall of the water main inlet pipe (201), a pipeline of the water return connecting pipe (404) is connected with the water return connecting pipe seat (405) after being in sealed insertion connection to the outer side of the cavity wall of the bottom cover (102), a check valve (406) is connected to a position, close to the water return connecting pipe seat (405), cleaning brush positions (408) are arranged at positions, corresponding to the main surface of the reverse osmosis mold cores (3), of the outer wall cleaning disc (407), the outer walls of a plurality of groups of cleaning brushes (409) are respectively clamped and installed in a cleaning brush position (408), a sliding guide seat (410) is connected and installed at the middle position of an outer wall cleaning disc (407), the sliding guide seat (410) is connected in a main pipeline of a hydrodynamic water return pipe (402) in a sliding manner, a hydrodynamic cavity bottom cover (411) is connected below a cavity of the hydrodynamic cavity (401), a screw rod top seat (412) is arranged at the position, corresponding to a movable screw rod (415), of the bottom end face of the hydrodynamic cavity bottom cover (411), a bottom coupling seat (413) is connected and fixed in the outer wall of a water return cavity (403), a screw rod base (414) is arranged at the position, corresponding to the screw rod top seat (412), of the top end of the bottom coupling seat (413), a lower end of the movable screw rod (415) is rotatably connected in the screw rod base (414), an upper end of the hydrodynamic water inlet pipe (418) is rotatably connected with the bottom end of a water channel of a total inlet pipe (201), the water-driven water inlet device is characterized in that a plurality of groups of water-driven water inlets (419) are formed in positions, corresponding to water outlet ends of water-driven water inlet pipes (418), of the top surface of a water-driven cavity (401), different water outlet ends of the water-driven water inlet pipes (418) are connected to the corresponding water-driven water inlets (419) respectively, a plurality of groups of water-driven water return ports (420) are formed in the main surface of a water-driven cavity bottom cover (411), different water inlet ends of the water-driven water return pipes (402) are connected to the corresponding water-driven water return ports (420) respectively, an inner spiral fan wheel seat (421) is formed in the middle position of the inner bottom surface of the water-driven cavity (401), a top shaft end of a spiral fan wheel (422) is rotatably connected to an inner spiral fan wheel seat (421), an outer spiral fan wheel seat (423) is formed in the position, corresponding to the inner spiral fan wheel seat (421), a rotary sealing ring (424) is connected to the outer spiral fan wheel seat (423), and the lower shaft end of the spiral fan wheel (422) is hermetically connected with a return water return pipe (404) to the outer side of the water-driven cavity bottom cover (411) after being inserted to the outer side of the water-driven cavity bottom cover (418) and is connected with conical teeth The wheel (425) is connected by insertion.

5. The cleaning device for the reverse osmosis membrane module according to claim 4, characterized in that: the water-driven water inlet pipe (418) is of a structure with one inlet and multiple outlets, the water outlet end of the water-driven water inlet pipe (418) is not located in the center of the top surface of the water-driven cavity (401), the water-driven water return pipe (402) is of a structure with one inlet and one outlet, and the water inlet end of the water-driven water return pipe (402) is not located in the center of the main surface of the bottom cover (411) of the water-driven cavity.

6. The cleaning device for a reverse osmosis membrane module according to claim 4 or 5, wherein: the reciprocating switching assembly (5) further comprises a reversing bevel gear (501), a switching shaft (506), a switching shaft seat (507), a second rotating shaft (510), a switching seat (515), a switching rod (517), a switching shaft seat (518) and a switching connecting rod (520), wherein the reversing bevel gear (501) is meshed at one side of the hydrodynamic bevel gear (425), the bottom surface of the hydrodynamic cavity bottom cover (411) is connected with the reversing shaft seat (503) at a position corresponding to the reversing bevel gear (501), the reversing shaft (502) is rotatably connected in the reversing shaft seat (503), the reversing bevel gear (501) is fixedly spliced in the reversing shaft (502), the reversing connection bevel gear (504) is fixedly spliced at the front end of the reversing shaft (502), the switching bevel gear (505) is fixedly spliced in the switching shaft (506), the switching shaft (506) is rotatably connected in the switching shaft seat (507), the switching shaft seat (507) is fixedly connected to the bottom surface of the water moving cavity bottom cover (411), the first rotating gear (508) is fixedly connected to the top end of the switching shaft (506) in an inserting manner, the position, corresponding to the second rotating gear (509), of the bottom surface of the water moving cavity bottom cover (411) is fixedly connected with a second rotating shaft seat (511) in a connecting manner, the second rotating shaft (510) is rotatably connected to the second rotating shaft seat (511), the second rotating gear (509) is fixedly connected to the top end of the second rotating shaft (510) in an inserting manner, one end of the switching seat (515) is rotatably connected to one end of the outer shaft surface of the switching sliding seat (512), the outer end of the switching seat (515) is fixedly connected with the switching connecting column (516) in an inserting manner, one end of the switching rod (517) is rotatably connected to the top end of the switching connecting column (516), the switching shaft position (518) is arranged at the position, corresponding to the switching connecting column (516), on the side wall of the main tank body (101), and a switching sealing ring (523) is arranged in the switching shaft position (518), the switching shaft (519) is connected in a switching sealing ring (523) in a sealing and screwing mode, one end of the switching connecting rod (520) is fixedly connected to the inner end of the switching shaft (519) in an inserting mode, a telescopic sliding groove (521) is formed in the main surface of the switching rod (517), a telescopic sliding seat (522) is fixedly connected to the position, corresponding to the telescopic sliding groove (521), of the main surface of the switching connecting rod (520), and the telescopic sliding seat (522) is connected in the telescopic sliding groove (521) in a sliding mode.

7. The cleaning device for the reverse osmosis membrane module according to claim 6, characterized in that: the axis of the switching link column (516) is perpendicular to the rotation center of the switching slide (512).

8. The cleaning device for the reverse osmosis membrane module according to claim 2, 3, 4, 5 or 7, wherein: the switching linkage assembly (6) further comprises an outer magnetic ring seat (602), a linkage plate (606) and a reversing slide seat (613), the outer magnetic ring seat (602) is arranged on the outer wall of the main tank body (101) in a sliding mode at a position corresponding to the outer magnetic ring (603), the outer magnetic ring (603) is fixedly connected to the top end face of the outer magnetic ring seat (602), the linkage plate (606) is connected to the outer end of the outer magnetic ring seat (602) at a position corresponding to the reversing connecting rod (611), a first reversing connecting plate (607) and a second reversing connecting plate (608) are fixedly connected to the outer end of the first reversing connecting plate (607), a slide seat connecting plate (614) is fixedly connected to the outer wall of the main tank body (101) at a position corresponding to the reversing slide rod (612), the reversing slide seat (613) is fixedly connected to the outer end of the connecting plate (614), the rear end of the reversing slide rod (612) is connected to the reversing slide seat (613) in a sliding mode, and a pressure spring (615) is fixedly connected to the rear end face of the reversing slide rod (612), the other end of the pressure spring (615) is fixedly connected with the inner bottom surface of the reversing sliding seat (613), one side of the reversing rod (610) is provided with a second limiting column (616), the other side of the reversing rod is provided with a first limiting column (617), the second limiting column (616) and the first limiting column (617) are fixedly connected with the outer wall of the main tank body (101), the second limiting column (616) and the first limiting column (617) are positioned on the rotating path of the main body of the reversing rod (610), when the first driving coupling gear (513) is meshed with the first rotating gear (508), the upper side surface of the reversing rod (610) is in limited contact with the first limiting column (617), when the second driving coupling gear (514) is meshed with the second rotating gear (509), the lower side surface of the reversing rod (610) is in contact with the second limiting column (616), the large inclined surface of one group of reversing elastic sheets (609) arranged in the first reversing coupling plate (607) faces downwards, and the large inclined surface of the other group of reversing elastic sheets (609) arranged in the second reversing coupling plate (608) faces upwards, when the second driving coupling gear (514) is meshed with the second rotating gear (509), the outer wall cleaning disc (407) moves upwards, when the first driving coupling gear (513) is meshed with the first rotating gear (508), the outer wall cleaning disc (407) moves downwards, the inner end surfaces of the first reversing coupling plate (607) and the second reversing coupling plate (608) and the reversing elastic pieces (609) correspond to each other in position and are provided with elastic piece grooves (619), and the two groups of reversing elastic pieces (609) are respectively clamped in the corresponding elastic piece grooves (619).

9. The cleaning device for the reverse osmosis membrane module according to claim 8, wherein: the main surface of the outer magnetic ring seat (602) is provided with a plurality of groups of linkage sliding seats (604), the upper end and the lower end of the outer wall of the main tank body (101) are fixedly connected with linkage sliding columns (605) at positions corresponding to the linkage sliding seats (604), and the plurality of groups of linkage sliding seats (604) are connected in the corresponding linkage sliding columns (605) in a sliding mode in half.

10. The cleaning device for a reverse osmosis membrane module according to claim 8 or 9, wherein: the outer end of the reversing sliding table (618) is of an arc boss structure, the reversing elastic sheet (609) is of an asymmetric sharp-corner inclined surface structure, the inclined surface on one side of the sharp corner is larger than the inclined surface on the other side of the sharp corner, and the elastic force of the pressure spring (615) to the reversing connecting rod (611) and the reversing sliding table (618) through the reversing sliding rod (612) is smaller than the elastic thrust of the small inclined surface of the reversing elastic sheet (609) to the reversing sliding table (618), but is larger than the elastic thrust of the large inclined surface of the reversing elastic sheet (609) to the reversing sliding table (618).