CN106145405B - Connection method of maintenance module and filtering channel for control component of water purifier - Google Patents

Abstract

The invention relates to the water treatment industry, in particular to the maintenance aspect of a water purifier. The invention discloses a method for connecting a maintenance module of a control component of a water purifier with a filtering channel, which comprises a machine base, a water passing control component and the filtering channel formed by connecting a plurality of filter liners in series; the water passing control components are fixedly connected on the base, and the respective water passing pipeline interfaces are connected at corresponding positions in the filtering channel, and the water filtering device also comprises a water gap in the same direction, a maintenance module and a fastening device which are connected and matched with the water passing control components; the maintenance module is provided with a butt joint pipeline with all same-direction butt joint water gaps in the same direction, is correspondingly connected with the water passing pipeline interfaces of all water passing control parts, and is in sealing butt joint with all corresponding positions of the filtering channel of the base in the same direction with all the same-direction butt joint water gaps in the opposite direction; the maintenance module is connected with the base into a whole through a fastening device; and releasing the fastening device to separate the maintenance module from the machine base, and correspondingly releasing the groups of the same-direction butt joint water gaps which are correspondingly and hermetically butted.

Description

Connection method of maintenance module and filtering channel for control component of water purifier

Prior application title: maintenance module for arranging control component of water purifier and connection method of maintenance module and filter channel

Prior application No.: 201410758486.5

Technical Field

The invention relates to the water treatment industry, in particular to the maintenance and replacement of a control part of a water purifier.

Background

At present, when water is used, a water purifier is adopted to carry out deep filtration on impurities and the like caused in water and a water conveying pipeline, so that the health of a user is well protected. As the filter liner of the water purifier is required to be replaced regularly in the using process after the water purifier is purchased and installed by a user. A series of matters generated around the replacement of the filter liner and the expense are always accompanied with the using process of the water purifier, so that the sales of the water purifier products are different from the sales of other household electrical appliances, namely the sales of semi-finished products, and strong maintenance service capability support is required for sellers. Along with the popularization improvement of the water purifier and the gradual popularization of the fast-assembling filter liner, a user can replace the filter liner by himself, so that the use cost of the water purifier is reduced. However, the water purifier has the characteristics of long-term continuous operation, great influence of environmental factors on the filtering effect and the service life of the filter liner, and the maintenance content of the water purifier mainly comprises the replacement of damaged parts. Although the machine maintenance principle is relatively simple and not numerous, the maintenance process is quite complex. Moreover, because of the influence of the use environment, the water purifier has smaller size, and the main position space is used for placing the filter liner, the related pipelines are staggered, and the fixed positions of all control components connected in the filter channel are more hidden and are not easy to disassemble; it is difficult for non-professionally trained personnel to disassemble. For example, most of box-type water purifiers are designed by adopting a three-layer structure consisting of an operation panel, a pipeline and a filter liner, a simple part is often replaced, and most of structures of the water purifiers need to be disassembled, so that the maintenance and replacement of the part only can require professional maintenance service personnel to perform door-to-door service, the workload of the maintenance service personnel is increased, the related expense is increased, and related matters surrounding the door-to-door service are very troublesome. Especially, the remote users who purchase the telephone through the network telephone are difficult to obtain timely and good service. Because the popularity of the current water purifier is less than 3 percent, and parts of manufacturers of the water purifier are not universal, a remote user can only search for repair under the guidance of the manufacturers or distribution units, or stop using a machine to wait for the regular maintenance and itineration service of the manufacturers for home maintenance; or simply remove the machine for return to the manufacturer for repair. This is also the main reason why water purifiers cannot be sold out of professional maintenance networks. The existing defects and shortcomings seriously influence the popularization of the water purifier product.

Disclosure of Invention

The invention mainly solves the technical problem of providing a simple and practical method for connecting a maintenance module and a filtering channel of a control part of a water purifier so as to overcome the defects and shortcomings.

A maintenance module for a control component of a water purifier comprises a water passing control component; the water passing control part is at least one part of a water passing electric control valve, a water pressure control switch, a flow sensor, a booster pump, a membrane concentrated water discharge flow control device, an ultraviolet sterilizer or a combined butt joint cavity, each water passing control part is provided with one or two water passing pipeline interfaces, and the water passing control part is characterized by also comprising a maintenance module which is connected and matched with 2-10 water passing control parts; the maintenance module is provided with a butt joint pipeline correspondingly connected with water passing pipeline interfaces of the water passing control components; the inner water ports of the butt-joint pipelines are respectively connected with the water passing pipeline interfaces of the water passing control parts, and the outer water ports of the butt-joint pipelines have the same orientation to form the equidirectional butt-joint water ports.

The maintenance module is provided with a plurality of butt joint pipelines, and the butt joint pipelines are arranged in a pipeline structure mode on the water passing control part: the butt joint pipeline provided with the inner water port and the outer end butt joint water port in the same direction is the water passing pipeline interface of the water passing control part.

The maintenance module is also at least provided with a window corresponding to the water passing control part, a corresponding movable plate device and a movable plate fastening device for fixing the movable plate device on the maintenance module; the water passing control part fixed on the movable plate device is integrated or can be a cover plate device part which can be plugged with the same-direction butt joint water gap in a sealing way.

A method for connecting a maintenance module for a control part of a water purifier and a filtering channel according to claim 1, 2 or 3, which comprises a water passing control part, a base and the filtering channel formed by connecting a plurality of filter containers in series; the water passing control part is at least one part of a water passing electric control valve, a water pressure control switch, a flow sensor, a booster pump, a membrane concentrated water discharge flow control device, an ultraviolet sterilizer or a combined butt joint cavity; each water passing control part is provided with one or two water passing pipeline interfaces and is respectively connected with the corresponding position in the filtering channel, and the device is characterized by also comprising a same-direction butt joint water gap, a maintenance module and a fastening device, wherein the axes of the water gaps of the same-direction butt joint water gaps are parallel or coincident around each water passing control part, the maintenance module is connected and matched with the water passing control parts, and the fastening device is arranged; the maintenance module is provided with a plurality of butt joint pipelines, the inner end water gaps of the maintenance module are correspondingly connected with the water passing pipeline interfaces of the water passing control part, and the outer end water gaps of the maintenance module have the same orientation to form equidirectional butt joint water gaps; the maintenance module which is connected and fixed with each water passing control component is connected with the base into a whole through the fastening device, and is correspondingly connected with a plurality of same-direction butt joint water gaps of each water passing pipeline interface, and is in sealing butt joint with the same-direction butt joint water gaps with corresponding directions arranged at each corresponding position of the filtering channel of the base at least through the connection mode of mutually inserting the circumferential surfaces of the pipe walls or mutually butting the end surfaces; and the release fastening device separates the maintenance module from the machine base, the sealing butt joint structures between the maintenance module and the corresponding butt joint water gaps of the machine base are correspondingly released, and the pipeline connection between the related water passing control part and the filtering channel of the machine base is correspondingly released.

The water passing control part fixed on the maintenance module is a cover plate device part which can be plugged with a same-direction butt joint water gap in a sealing way, and the other part of the water passing control part fixed on the base is a pipeline water passing structure with a water passing pipeline interface; the machine base filtering channel passes through a communicating pipe water passing structure of a water passing pipeline connector, and a same-direction butt joint water gap which is connected and matched with the cover plate device is additionally arranged on the pipeline water passing structure; the sealed butt joint mode of the equidirectional butt joint water gap between the maintenance module and the machine base is a sealed butt joint mode of the equidirectional butt joint water gap on the cover plate device and the pipeline water passing structure: the maintenance module is connected with the base into a whole through the fastening device, the cover plate device is fixed on the pipeline water passing structure in a sealing mode, and the pipeline water passing structure and the cover plate device are in butt joint with the water gap in the same direction in a sealing mode; and the fastening device is disengaged, so that the maintenance module is separated from the machine base, and the sealing butt joint structure for butt joint the water gap in the same direction between the pipeline water passing structure and the cover plate device is correspondingly disengaged.

The water passing control part corresponding to the sealing butt joint mode of arranging the equidirectional butt joint water gap between the cover plate device part and the pipeline water passing structure part at least comprises a detachable sealing butt joint part of one of a water passing electric control valve, a water pressure switch, a flow sensor, a membrane concentrated water discharge flow control device or a combined butt joint cavity.

The maintenance module is positioned below the machine base filtering channel, and the maintenance module is in sealed butt joint with each corresponding position of the machine base filtering channel through a vertical same-direction butt joint water gap; the fastening device is disengaged, and the maintenance module is moved downward to be separated from the base filter passage.

The machine base is also provided with a movable bracket; the movable bracket is positioned at the lower part of the machine base, or a folding bracket or a telescopic bracket; when the movable support is unfolded to make the bottom of the machine base overhead, a detaching and fastening device and an operation space for separating the maintenance module from the machine base are reserved.

The device also comprises a control lead plug-in device; the control wire plug-in device is matched with a control wire plug-in device formed by two parts of a connecting wire plug and a socket, or adopts a static-static mutual plug-in mode that the two parts are respectively fixed on the machine base and the maintenance module, or adopts a static-dynamic mutual plug-in mode that a part I is fixed on the machine base and a part II plugged with the part I is connected with an electric control device of a plurality of water passing control components on the maintenance module through wires, or adopts a static-dynamic mutual plug-in mode that a part II is fixed on the maintenance module and a part I plugged with the part II is connected with a control wire on the machine base through wires, or adopts a dynamic-dynamic mutual plug-in mode that the two parts plugged with each other are respectively connected with the control wire on the machine base through wires and the electric control device of the plurality of water passing control components; the fastening standard device is disconnected, and the connection plug and the socket of the control lead plug-in device are disconnected, so that the maintenance module is separated from the base.

The maintenance module is also connected and matched with the electric control device; the electric control device at least comprises a power supply or an electric controller or an ultraviolet lamp driver or a circuit overload protector.

The maintenance module is also provided with a fastening structure which is connected and matched with the fastening device; the corresponding fastening device is either a fastening standard component, a movable clamping device or a movable pressing plate device.

The maintenance module is also at least provided with a window corresponding to the water passing control part, a corresponding movable plate device and a movable plate fastening device for fixing the movable plate device on the maintenance module; the water passing control part is fixed on the movable plate device or is integrated or can be a cover plate device part which can be plugged with the same-direction butt joint water gap in a sealing way; at least one same-direction butt-joint water gap sealing butt-joint structure is arranged between each movable plate device and each corresponding position of the machine base filtering channel; and the movable plate fastening device is released to separate the movable plate device from the maintenance module, and the water passing control part or the whole or the cover plate device part fixed on the movable plate device is correspondingly released from the sealing butt joint structure between the equidirectional butt joint water gaps arranged corresponding to the filtering channel of the machine base.

Compared with the existing water purifier, the invention has the following advantages: the main control components of the water purifier, such as an electromagnetic valve, a high-pressure water pressure control switch, a low-pressure water pressure control switch and a flow sensor, can be conveniently and quickly replaced; on the basis, the power supply, the electric control device and the ultraviolet sterilizer driver can be quickly replaced; the design mode of the control component and the pipeline connection assembly is changed from a traditional installation mode of 'convenient assembly' to a maintenance mode of 'convenient replacement'. The control component can be replaced only by detaching the maintenance module without dismounting the pipeline, thereby simplifying the maintenance difficulty of the machine; the user can prompt according to the remote of the manufacturer. Or finding out the damaged control part and automatically replacing the damaged control part by related prompt in a self-checking mode of the machine; the technical means of conveniently disassembling the maintenance module and replacing the whole water passing control part or the cover plate device is adopted to realize the purpose of relieving or getting rid of the dependence of the existing product on professional maintenance service personnel, and the 'semi-finished product' water purifier which is originally simple in maintenance but has huge maintenance service workload and is always accompanied with the operation process of a machine and called as the 'semi-finished product' which cannot be separated from the professional maintenance service is changed into a 'finished product' which is easy to maintain; the system can greatly facilitate consumers, gradually reduce or get rid of the dependence on a maintenance service network, obviously reduce the use cost of the machine, obviously improve the service quality of manufacturers and distributors, and reduce the workload of corresponding maintenance services.

Drawings

The attached drawing is a schematic diagram of the structural principle of the invention.

In the attached drawing, four filter liners 2 are sequentially connected in series between a water inlet pipeline 1a and a water outlet pipeline 1b of a machine base 1 to form a water passing channel, wherein three water gap filter liners 21, 22 and 23 form a front water passing channel; the filter cartridge 24 and the following portions form a rear water passage. The water inlet end of the front water passing channel is provided with a water inlet electric control valve 18 and a low water pressure control switch 19, and the triggering water pressure of the low water pressure control switch 19 is controlled within the range of the conventional tap water conventional pipe pressure. The filter liner 24 is a reverse osmosis membrane filter liner. A booster pump 14 is connected in series in a connecting pipeline between the water inlet of the reverse osmosis membrane filter container 24 and the water outlet of the previous filter container 23, and a high water pressure control switch 16 is arranged in a water passing pipeline behind the booster pump 14 for overvoltage protection. The discharge pipeline of the concentration discharge port of the reverse osmosis membrane filter container 24 is provided with a cut-off valve which is a waste water ratio device and is used for connecting the concentration discharge flow control device 6, and the discharge flow of the concentration water of the discharge pipeline is controlled. A flow sensor 12 is arranged at the end of the rear water channel.

The low water pressure control switch 19, the water inlet electric control valve 18, the high water pressure control switch 16 and the flow sensor 12 are fixed on the maintenance module 4 through the fastening standard component 13. The maintenance module 4 is connected and fixed on the machine base 1 through a fastening device 5. The same-direction butt joint water gaps 7 of the outer ends of the pipelines of the plurality of corresponding control component water gaps on the maintenance module and the butt joint water gaps 3a of the machine base 1 are mutually spliced at least through the pipe wall circumferential surface of the butt joint water gaps or are in butt joint with the butt joint water gaps 3a at the corresponding positions of the filtering channel through the connection mode of butt joint of the water gap end surfaces of the butt joint water gaps, and the butt joint positions are sealed through sealing pieces 15.

Detailed Description

The filtering channels connected with the filtering liners are respectively connected with the water inlet pipeline and the water outlet pipeline of the machine base to form filtering channels. Selecting a water passing control part comprising a water passing valve, a water pressure control switch, a flow sensor, a booster pump, a membrane concentrated water discharge flow control device and a combined type butt joint cavity, and controlling related water passing pipelines related to a filtering channel of the machine base; the water channels of the water passing control components are connected with the water passing pipeline of the filtering channel through water passing pipeline connectors. Wherein the content of the first and second substances,

the water inlet valve, the water discharge valve, the water return valve and the overflow valve which are one of the water passing electric control valves are all used for controlling the on and off of the water passing of the pipeline; generally, the water passing electric control valve comprises a pipeline water passing structure and a cover plate device consisting of a cover plate and an electric control device.

The high and low water pressure control switches 16, 19 as one of the water pressure control switches are used for controlling the circuit switch through the pipeline water pressure change;

the flow sensor 12 is used for driving a related circuit to output a control signal through the flow of the water and accumulating the flow of the water;

the booster pump 14 is used for increasing the water pressure in a water inlet pipeline of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner and meeting the operation requirement of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner;

a concentrate discharge flow rate control device 6 for controlling the discharge flow rate (commonly called as wastewater ratio) of the concentrate discharge port of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner; the concentrated water discharge flow control device 6 does not adopt a membrane concentrated water discharge flow control device (commonly called as a waste water ratio) of a thread and nut connecting pipeline, adopts a membrane concentrated water discharge flow control device inserted into a separable plug-in shell, and can be taken out along with the separation of a maintenance module and the plug-in shell.

An ultraviolet sterilizer for sterilizing water flowing through the pipeline by ultraviolet rays.

The combined butt joint cavity is a separable sealed plug-in shell with a built-in filter material layer or a membrane discharge concentrated water flow control device. The purpose of arranging the combined butt joint cavity is to facilitate the replacement of a built-in naked liner or a built-in plug-in membrane concentrated water discharge flow control device.

In the following embodiments, the function and principle of the water passing control means will not be described.

Example 1. The three preposed filter liners 21, 22 and 23 are connected with an RO reverse osmosis membrane filter liner 24 to form a pure water machine type, a three-pipeline non-pressure type water faucet for controlling a water inlet pipeline of a machine is adopted, the front end of a control valve of the water purifier is connected with a tap water pipeline, a water outlet at the rear end of the control valve of the water purifier is connected with a water inlet pipeline interface 1a of the machine base 1, and a purified water outlet of the water purifier is connected with a water outlet pipeline interface 1b of the machine base 1. After the non-pressure type faucet is closed, the filtering channel 3 of the base 1 is not subjected to the pressure of a tap water pipe; after the non-pressure type faucet is started, water in a tap water pipeline flows into a base water inlet pipeline 1a, passes through a homodromous butt joint water gap 3a of a filter channel 3 of a base 1 and a homodromous butt joint water gap 7 on a maintenance module 4, is triggered to be connected with a low water pressure control switch 19 fixed on the maintenance module 4 through a fastening standard part 13, and flows through each filter container 2 on the base 1 and then flows out from a base water outlet pipeline 1b and a purified water outlet of the non-pressure type faucet. The booster pump 14 is connected in series in a water inlet pipeline of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24, and the water inlet end of the booster pump is connected with a water outlet pipeline of the front filtering channel; the high water pressure control switch 16 is positioned between the water outlet end of the booster pump 14 and the water inlet pipeline of the reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24, and is fixedly connected on the maintenance module 4 through the fastening standard part 13, and two same-direction butt joint water outlets 7 at the water inlet end and the water outlet end of the high water pressure control switch are respectively in sealing butt joint with two same-direction butt joint water outlets 3a positioned on the machine base 1, so that the high water pressure control switch 16 is connected in the filter channel 3.

Installing a maintenance module 4 of high and low water pressure control switches 16 and 19, wherein the maintenance module is provided with 2 butt joint pipelines which are respectively connected with water passing pipeline interfaces of the high and low water pressure control switches 16 and 19 and are positioned at two water passing pipeline interfaces of the high water pressure control switch 16, and 3 butt joint water gaps of the water passing pipeline interface of the low water pressure control switch 19 have the same orientation to form a same-direction butt joint water gap 7; the maintenance module 4 is connected with the machine base 1 into a whole through a fastening device 5, 3 equidirectional butt joint water gaps 7 correspondingly connected with the two butt joint pipelines are mutually inserted through the circumferential surface of the pipe wall of the butt joint water gap, and are hermetically butted with three equidirectional butt joint water gaps 3a of the filtering channel 3 together by means of sealing elements 15; disengaging the fastening device 5 to separate the maintenance module 4 from the frame 1; the maintenance module 4 is respectively connected with 3 same-direction butt joint water gaps 7 of butt joint pipelines of high and low water pressure control switches 16 and 19, and is correspondingly disconnected with the sealing connection of 3 same-direction butt joint water gaps 3a of the filtering channel 3 on the machine base 1. And taking the abnormal high water pressure control switch 16 or the abnormal low water pressure control switch 19 from the detached maintenance module 4, replacing the abnormal high water pressure control switch 16 or the abnormal low water pressure control switch 19 with a corresponding new high water pressure control switch 16 or a new low water pressure control switch 19, and then connecting the maintenance module 4 and the machine base 1 into a whole through the fastening device 5. The maintenance module 4 is respectively connected with 3 same-direction butt joint water gaps 7 of two butt joint pipelines of high and low water pressure control switches 16 and 19, and the sealing connection with three same-direction butt joint water gaps 3a of the filtering channel 3 on the machine base 1 is restored again.

In the second mode of the embodiment, a pure water type is formed by connecting a low water pressure control switch 19, three preposed filter containers 21, 22 and 23, a booster pump, a high water pressure control switch 16, an RO reverse osmosis membrane filter container or a nanofiltration membrane filter container 24, a pressure tank and a single-pipeline pressure-bearing type water purifying tap.

When the pressure-bearing type water purifying tap is closed, the machine bears the pressure of a tap water pipe. The pressure-bearing type water purifying tap with single pipeline is opened, and the purified water in the pressure tank is pressed out of the water purifying tap by the action of the air bag in the pressure tank. When the water pressure of the purified water in the pressure tank is reduced until the high water pressure control switch 16 is triggered to act, the booster pump is driven to operate, the water treated by the preposed filter container is pressed into the reverse osmosis membrane filter container or the nanofiltration membrane filter container 24 to produce water, and the water is injected into the pressure tank until the pressure born by the high water pressure control switch 16 reaches a set value and is reset, and then the water production is stopped. In order to avoid the phenomenon that the booster pump is damaged due to the fact that the front filtering channel is not filled with water in the operation process of the booster pump, a low water pressure control switch 19 is arranged in the base water inlet pipeline 1 a. When the low water pressure control switch 19 monitors that the water pressure of the tap water in the outlet pipeline is low or no water exists, the booster pump 14 is limited to operate.

The maintenance module is provided with 2 butt joint water gaps 7 which are in the same direction and are respectively connected with the butt joint pipelines of the water passing pipeline interfaces of the high and low water pressure control switches 16 and 19; the filter is connected with the machine base 1 into a whole through a fastening device 5, 3 equidirectional butt joint water gaps 7 correspondingly connected with the two butt joint pipelines are mutually butted through the end surfaces of the butt joint water gaps, and are hermetically butted with three equidirectional butt joint water gaps 3a of the filter channel 3 by virtue of sealing pieces 15; disengaging the fastening device 5 to separate the maintenance module 4 from the frame 1; the three same-direction butt joint water gaps 7 on the maintenance module 4 are correspondingly disconnected with the sealing connection of the three same-direction butt joint water gaps 3a of the filtering channel 3 on the machine base 1. And (3) taking the abnormal high water pressure control switch 16 or the abnormal low water pressure control switch 19 from the detached maintenance module 4, replacing the corresponding new control component, and then connecting the maintenance module 4 and the machine base 1 into a whole through the fastening device 5. The maintenance module 4 is respectively connected with 3 same-direction butt joint water gaps 7 of two butt joint pipelines of high and low water pressure control switches 16 and 19, and the sealing connection with three same-direction butt joint water gaps 3a of the filtering channel 3 on the machine base 1 is restored again.

In the third mode of the embodiment, a desktop water purifier type is formed by connecting a water inlet electric control valve 18, a low water pressure control switch 19, three preposed filter containers 21, 22 and 23, a booster pump, an RO reverse osmosis membrane filter container or a nanofiltration membrane filter container 24 and a water tank provided with a water level control device and a water purifying faucet. When the purified water faucet is started to drain water so that the water level control device detects that the water level in the water tank is reduced to a low level, the water inlet electric control valve 18 is started to be conducted, the booster pump 14 and the RO reverse osmosis membrane filter liner or the nanofiltration membrane filter liner 24 are started to operate water production, and the water production is stopped until the purified water level in the water tank is increased to the high level. Whether the water inlet electronic control valve 18 operates normally is judged by monitoring whether the low water pressure control switch 19 performs corresponding actions corresponding to the closing or the conduction of the water inlet electronic control valve 18.

The maintenance module is provided with a butt joint pipeline which is sequentially connected with the water inlet electric control valve 18 and the low water pressure control switch 19 in series, wherein the water inlet electric control valve 18 is provided with two water inlet and outlet pipeline interfaces; the low water pressure control switch 19 is provided with a water passing pipeline connector and is communicated with the water passing pipeline connector at the water outlet end of the water inlet electric control valve 18. Two same-direction butt joint water gaps 7 at two ends of the butt joint pipeline and two same-direction butt joint water gaps 3a of the filtering channel 3 on the machine base 1 are mutually spliced through pipe walls and the butt joint position is sealed by a sealing piece 15. Meanwhile, the maintenance module 4 is connected with the machine base 1 into a whole through the fastening device 5. When in maintenance, the fastening device 5 is disengaged, so that the maintenance module 4 is separated from the machine base 1; the two same-direction butt joint water gaps 7 on the maintenance module 4 are correspondingly disconnected with the sealing connection of the two same-direction butt joint water gaps 3a of the filtering channel 3 on the machine base 1. And taking off the abnormal water inlet electric control valve 18 or the low water pressure control switch 19 from the detached maintenance module 4, replacing the abnormal water inlet electric control valve with a corresponding new component, and then connecting the maintenance module 4 and the machine base 1 into a whole through the fastening device 5. The maintenance module 4 is sequentially connected with the front and rear equidirectional butt joint water gaps 7 of the butt joint pipeline of the water inlet electric control valve 18 and the low water pressure control switch 19, and the sealing connection with the two equidirectional butt joint water gaps 3a of the filtering channel 3 on the machine base 1 is restored again.

As an improvement, a high water pressure control switch 16 for monitoring and protecting a booster pump 14 is also arranged on a maintenance module 4, a second butt joint pipeline connected with the high water pressure control switch 16 in series is arranged on the maintenance module, the front end and the rear end of the second butt joint pipeline are respectively provided with a same-direction butt joint water gap 7, and the second butt joint water gap 3a is in sealing butt joint with two same-direction butt joint water gaps of a booster pump 14 water outlet pipeline and a water inlet pipeline of an RO reverse osmosis membrane filter liner or an NF nanofiltration membrane filter liner 24 which are respectively arranged on a machine base, so that the maintenance module 4 with two butt joint pipelines and four same-direction butt joint water gaps is formed. Disengaging the fastening device 5 to separate the maintenance module 4 from the frame 1; the four same-direction butt joint water gaps 7 on the maintenance module 4 are correspondingly disconnected with the sealing connection of the four same-direction butt joint water gaps 3a of the filtering channel 3 on the machine base 1. And taking off the abnormal water inlet electric control valve 18, the low water pressure control switch 19 or the high water pressure control switch 16 from the detached maintenance module 4, replacing the abnormal water inlet electric control valve with the corresponding new component, and then connecting the maintenance module 4 and the machine base 1 into a whole through the fastening device 5.

In addition, as a special case of the fourth mode of the present embodiment (one of the two opposite connecting water ports constituting the opposite connecting water port 7 is omitted), the base water inlet pipeline 1a is arranged on the maintenance module and connected with the water inlet of the water inlet electric control valve 18; the water outlet end of the water inlet electric control valve 18 is connected with a low water pressure control switch 19. The same-direction butt joint water gap which can be separated along with the maintenance module 4 is arranged only at the rear end of the low water pressure control switch 19 in the butt joint pipeline (also the water outlet end of the water inlet electric control valve 18), and is in sealed butt joint with the corresponding same-direction butt joint water gap arranged on the water inlet pipeline of the filter liner arranged in front of the machine base, namely, one butt joint pipeline on the maintenance module 4 corresponds to two control components, and a same-direction butt joint water gap 7 is arranged to be in sealed butt joint with the same-direction butt joint water gap 3a at the corresponding position of the filter channel 3 of the machine base. When one butt joint pipeline on the maintenance module 4 is provided with two same-direction butt joint water gaps 7 which are respectively in sealing butt joint with two same-direction butt joint water gaps 3a on the machine base, no special property exists. The second same-direction butt joint water gap can be positioned in a water inlet pipeline of the water inlet electric control valve 18 or between the water inlet electric control valve 18 and the low water pressure control switch 19; the corresponding filtering channel of the base is also provided with a corresponding equidirectional butt joint water gap 3 a.

As an improvement of the four modes of the embodiment 1, a flow sensor 12 is additionally arranged at the tail end of the filtering channel 3, the flow sensor 12 is also arranged on the maintenance module 4, and a butt joint pipeline which is connected with the flow sensor 12 in series is additionally arranged on the maintenance module, so that the maintenance module 4 which is provided with a butt joint pipeline corresponding to three or four control components and a plurality of equidirectional butt joint water gaps is formed. As shown in the attached drawings, in the third mode of this embodiment, the maintenance modules 4 corresponding to the three docking pipelines of the four control components and the six co-directional docking water gaps 7 are in sealed docking with the six co-directional docking water gaps 3a corresponding to the filtering channel 3 of the base 1. The maintenance module 4 is fixed on the frame 1 by a fastening device 5. Disengaging the fastening device 5 to separate the maintenance module 4 from the frame 1; the six same-direction butt joint water gaps 7 on the maintenance module 4 are correspondingly disconnected with the sealing connection of the six same-direction butt joint water gaps 3a of the filtering channel 3 on the machine base 1.

Example 2. Three preposed filter liners 21, 22 and 23 are connected with a flow sensor 12, an ultraviolet sterilizer and a water purifying tap to form a water purifier type. A flow sensor 12 provided in the filtering passage is used to control the driving of the ultraviolet sterilizer located in the water tank. When the purified water faucet is opened to communicate the filtering channel, the flow sensor 12 operates to drive the ultraviolet sterilizer to perform sterilization treatment on the filtered purified water again. Arranging a flow sensor 12 and an ultraviolet sterilizer on a maintenance module, and arranging a butt joint pipeline correspondingly connecting the flow sensor 12 and the ultraviolet sterilizer on the maintenance module, wherein one butt joint pipeline can be arranged to be sequentially connected with the sensor 12 and the ultraviolet sterilizer in series, and two same-direction butt joint water gaps 7 are arranged and are in sealing butt joint with two same-direction butt joint water gaps 3a at the corresponding position of a filtering channel 3 of a machine base 1; or two butt-joint pipelines can be arranged to be respectively connected with the sensor 12 and the ultraviolet sterilizer, and four equidirectional butt-joint water gaps 7 are arranged to be in sealing butt joint with four equidirectional butt-joint water gaps 3a at the corresponding positions of the filtering channel 3 of the machine base 1; the maintenance module 4 is fixed on the frame 1 by a fastening device 5. Disengaging the fastening device 5 to separate the maintenance module 4 from the frame 1; the sealing connection between the relevant co-rotating docking nozzle 7 on the maintenance module 4 and the relevant co-rotating docking nozzle 3a of the filter channel 3 on the machine base 1 is correspondingly disconnected.

Example 3. In addition to the four modes of embodiment 1, a concentrate discharge flow rate control device for connecting the concentrate discharge port of the RO reverse osmosis membrane filter cartridge or the NF nanofiltration membrane filter cartridge 24 is also provided in the maintenance module 4. Meanwhile, a butt joint pipeline correspondingly connected with the concentrated water discharge flow control device is arranged on the maintenance module, and a homodromous butt joint water gap 7 connected with a water inlet pipeline of the concentrated water discharge flow control device 6 can be arranged and is in sealing butt joint with a homodromous butt joint water gap 3a at the position corresponding to a concentrated water discharge pipeline of an RO reverse osmosis membrane filter liner or an NF nanofiltration membrane filter liner 24 on the machine base 1; also can set up two syntropy and dock mouth of a river 7, with two syntropy butt joint mouths of a river 3a that dense water pipeline was arranged to RO reverse osmosis membrane filter courage or NF nanofiltration membrane filter courage 24 on the frame 1 sealed butt joint. The maintenance module 4 is fixed on the frame 1 by a fastening device 5. Disengaging the fastening device 5 to separate the maintenance module 4 from the frame 1; the sealing connection of the relevant co-rotating docking nozzle 7 on the service module 4 and the relevant co-rotating docking nozzle 3a on the machine base 1 is correspondingly disconnected.

Example 4. On the basis of the embodiments 1 and 3, a concentrated water discharging tank is additionally arranged. The water outlet pipeline of the concentrated water discharge flow control device 6 connected with the concentrated water discharge port of the RO reverse osmosis membrane filter liner or the NF nanofiltration membrane filter liner 24 is connected with a concentrated water discharge tank for storing concentrated water discharged from the concentrated water discharge port of the RO reverse osmosis membrane filter liner or the NF nanofiltration membrane filter liner 24.

As a first mode of embodiment 4, the drain tank is provided with a drain line connected to a drain valve, and the drain valve is provided on the maintenance module and a corresponding drain butt line is provided. The device can be provided with a same-direction butt joint water gap 7 connected with a water inlet pipeline of the discharge valve, and is in sealing butt joint with a same-direction butt joint water gap 3a at the corresponding position of a discharge pipeline of the concentrated water tank on the machine base 1; or two equidirectional butt joint water gaps 7 can be arranged and are in sealing butt joint with two equidirectional butt joint water gaps 3a of a discharge pipeline of the concentrated water tank on the machine base 1. The maintenance module 4 is fixed on the frame 1 by a fastening device 5. Disengaging the fastening device 5 to separate the maintenance module 4 from the frame 1; the sealing connection of each relative same-direction butt joint water gap 7 on the maintenance module 4 and each relative same-direction butt joint water gap 3a on the machine base 1 is correspondingly released.

In a second mode of embodiment 4, a return valve and a return pipe are provided, and the front end of the return valve and the return pipe are connected to a return port of the concentrated water discharge tank, and the rear end of the return pipe is connected to the front filter passage. The water return valve is arranged on the maintenance module, is provided with a corresponding water return butt joint pipeline, is provided with two same-direction butt joint water outlets 7, and is in sealing butt joint with two same-direction butt joint water outlets 3a of a water return pipeline of the upper concentrated water tank of the machine base 1. The backwater valve can be a check valve for one-way water passing, and can also be a backwater electric control valve linked with the water inlet electric control valve 18 of the front filtering channel. The booster pump 14 pumps the "concentrate" in the concentrate discharge tank into the pre-filtration channel for reuse. For the water return pipeline provided with the check valve, the booster pump 14 is used for pressing 'concentrated water' in the concentrated water discharge tank and tap water in the water inlet pipeline 1a of the machine base into the preposed filter liners 21, 22 and 23 and pressing into the RO reverse osmosis membrane filter liner or the NF nanofiltration membrane filter liner 24 to produce water. For the backwater electric control valve and the backwater pipeline which are linked with the front filtering channel water inlet electric control valve 18, the backwater electric control valve is switched on and the front filtering channel water inlet electric control valve 18 is closed. The booster pump 14 pumps the 'concentrated water' in the concentrated water discharge tank into the preposed filter containers 21, 22 and 23 and presses the concentrated water into the RO reverse osmosis membrane filter container or the NF nanofiltration membrane filter container 24 to produce water. When the water level in the concentrated water discharging tank is lower, the backwater electric control valve is closed, and simultaneously the water inlet electric control valve 18 of the front filtering channel is opened to continue water production.

The backwater valve is arranged on the maintenance module, is provided with a corresponding backwater butt joint pipeline, is provided with two same-direction butt joint water gaps 7, and is in sealed butt joint with two same-direction butt joint water gaps 3a of the backwater butt joint pipeline on the machine base 1. The maintenance module 4 is fixed on the frame 1 by a fastening device 5. Disengaging the fastening device 5 to separate the maintenance module 4 from the frame 1; the sealing connection of each relative same-direction butt joint water gap 7 on the maintenance module 4 and each relative same-direction butt joint water gap 3a on the machine base 1 is correspondingly released.

Example 5. Example 5 is the most preferred example. On the basis of embodiment 4, an overflow pipeline with an overflow valve is arranged at the high position of the concentrated water discharge tank, the overflow valve is arranged on the maintenance module, and a corresponding overflow butt joint pipeline is arranged: a same-direction butt joint water gap 7 connected with a water inlet pipeline of the overflow valve is arranged and is in sealing butt joint with a same-direction butt joint water gap 3a at the corresponding position of an overflow pipeline of the concentrated water tank on the machine base 1. The maintenance module 4 is fixed on the frame 1 by a fastening device 5. Disengaging the fastening device 5 to separate the maintenance module 4 from the frame 1; the sealing connection of each relative same-direction butt joint water gap 7 on the maintenance module 4 and each relative same-direction butt joint water gap 3a on the machine base 1 is correspondingly released. In this example, the water passing control component disposed on the maintenance module 4 includes ten components, i.e., a water inlet electric control valve, a water discharge electric control valve, a water return electric control valve, a valve overflow electric control valve or a high and low water pressure control switch, a flow sensor, a booster pump, a membrane concentrated water discharge flow control device, and an ultraviolet sterilizer. On the basis, a combined butt joint cavity can be added, or the combined butt joint cavity can replace any one of the ten water control components.

Example 6. On the basis of the embodiments 1-5, the maintenance module of the machine is fixed on the machine base 1 through the fastening device 5, and at least one water passing control part in each water passing control part on the maintenance module is formed by combining a pipeline water passing structure provided with a water passing pipeline interface and a cover plate device consisting of a cover plate and an electric control device, such as a water passing electric control valve or a water pressure control switch. For water passing electric control valves (including the aforementioned various electric control valves) or water pressure control switches (including high and low pressure switches), the base filtering channel passes through a communicating pipeline water passing structure of a water passing pipeline interface, and a same-direction butt joint water gap connected and matched with the cover plate device is additionally arranged on the pipeline water passing structure; the sealing butt joint mode between the respective equidirectional butt joint water gaps of the maintenance module and the engine base is actually a sealing butt joint mode of the equidirectional butt joint water gaps on the cover plate device and the pipeline water passing structure, wherein the cover plate device consists of a cover plate and an electric control device: the concrete structure is that the cover plate device crosses water structure contact cooperation with the pipeline, crosses the sealed grafting cooperation of the syntropy butt joint mouth of a river that water structure set up in addition with the sealed moving part of electrically controlled device linkage and pipeline: for the water passing electric control valve, the sealing moving part is linked with the electromagnetic valve core to conduct or close the same-direction butt joint water gap on the pipeline water passing structure; for the water pressure control switch, the sealing moving part moves under the action of water pressure in the water receiving port in the same direction on the pipeline water passing structure, and triggers the micro-switch contact positioned on the other side to act so as to correspondingly change the state of the water pressure control switch. The maintenance module is connected with the base into a whole through the fastening device, the cover plate device is fixed on the pipeline water passing structure in a sealing mode, and the pipeline water passing structure and the cover plate device are in butt joint with the water gap in the same direction in a sealing mode; the fastening device is disengaged to separate the maintenance module from the machine base, the sealing butt joint structure of the equidirectional butt joint water gap between the pipeline water passing structure and the cover plate device is correspondingly disengaged, then the cover plate device on the maintenance module is replaced, the easily damaged cover plate device in the water passing control part is replaced, and the maintenance cost is reduced by keeping the easily damaged pipeline water passing structure mode. It should be noted that the cover plate device is fixed on the maintenance module, and then the maintenance module is fixed on the base through the fastening device. And then the sealing butt joint of the same-direction butt joint water gap between the pipeline water passing structure and the cover plate device is realized.

When the combined butt joint cavity needs to be set into a cover plate device which can be plugged with the same-direction butt joint water gaps in a sealing mode in each water passing control part on the maintenance module, a first shell of the combined butt joint cavity is fixed on the machine base as a pipeline water passing structure and is connected with the corresponding position of a filtering channel of the machine base through a water passing pipeline connector, a second shell of the combined butt joint cavity is fixed on the maintenance module as a cover plate device, and the sealed butt joint positions of the two shells form a sealed butt joint structure of the same-direction butt joint water gaps. The sealed butt joint mode of the equidirectional butt joint water gap between the maintenance module and the machine base is a sealed butt joint mode of the equidirectional butt joint water gap on the cover plate device and the pipeline water passing structure: the maintenance module is connected with the base into a whole through the fastening device, the cover plate device is fixed on the pipeline water passing structure in a sealing mode, and the pipeline water passing structure and the cover plate device are in butt joint with the water gap in the same direction in a sealing mode; and the fastening device is disengaged to separate the maintenance module from the machine base, the sealing butt joint structure of the equidirectional butt joint water gap between the cover plate device and the pipeline water passing structure is correspondingly disengaged, and then the built-in filter material layer naked liner or the built-in plug-in type membrane drainage concentrated water flow control device in the combined butt joint cavity is replaced.

By analogy, the flow sensor serving as one of the water passing control parts can be arranged into a cover plate device structure which is the same as or similar to the combined butt joint cavity and can be plugged in a sealing manner to butt joint the water gap in the same direction, wherein the sealing plugging device fixed on the maintenance module is a cover plate device. And the fastening device is disengaged to separate the maintenance module from the machine base, the sealing butt joint structure of the equidirectional butt joint water gap between the cover plate device and the pipeline water passing structure is correspondingly disengaged, and then the rotor device in the flow sensor is replaced.

In the scheme, the sealing butt joint mode between the maintenance module and the respective equidirectional butt joint water gaps of the base is that a cover plate device consisting of a cover plate and an electric control device is in sealing butt joint with the equidirectional butt joint water gap on the pipeline water passing structure, and the cover plate device is generally regarded as being provided with the equidirectional butt joint water gap with a plug and is in sealing splicing fit with the equidirectional butt joint water gap on the pipeline water passing structure. In the scheme, the functions of a sealing butt joint mode of a cover plate device fixed on the maintenance module and a pipeline water passing structure for butt joint in the same direction and a sealing butt joint mode between a butt joint pipeline fixed on the maintenance module and a machine base in the same direction are the same, namely the cover plate device and the pipeline water passing structure are dismounted together with the maintenance module on the premise of meeting the normal operation of a corresponding water passing control component. Therefore, the maintenance module is provided with a butt joint pipeline correspondingly connected with the water passing pipeline interfaces of the water passing control components; the inner water ports of the butt joint pipelines are respectively connected with the water passing pipeline interfaces of the water passing control components, and the outer water ports of the butt joint pipelines have the same orientation to form the same-direction butt joint water ports. At the moment, the sealing butt joint mode between the maintenance module and the base in the same direction butt joint water gap is the sealing butt joint mode of the cover plate device and the pipeline water passing structure in the same direction butt joint water gap.

In addition to the first water passing control part, the other second water passing control part can be one part of a water passing electric control valve, a water pressure control switch, a flow sensor, a booster pump, a membrane concentrated water discharge flow control device, an ultraviolet sterilizer or a combined butt joint cavity body; when the maintenance module is disconnected, the water passing control part II which is disconnected with the maintenance module can be integrally disconnected or only the cover plate device can be disconnected.

And so on. The maintenance module can be respectively provided with two, three, four, five, six, seven, eight and nine water passing control parts in sequence besides the water passing control part I, correspondingly forms the maintenance module which is connected and fixed with the three water passing control parts, is connected with the base into a whole through a fastening device, and simultaneously connects each water passing control part with each corresponding part of the filtering channel of the base. In addition to the first water control component described above, what the other water control components are does not affect the implementation of the present embodiment.

In the above 1-6 embodiments, the number of the water passing control components arranged on the maintenance module 4 is at least two or more, and the upper limit is not limited to the ten control components listed in embodiment 5, for example, a water purifying electric control valve can be arranged according to the requirement, or the related water passing control components can be reused, and the related principle is the same and is not repeated.

In the above 1-6 embodiments, when the lower base with the electric drain valve is adopted, the filter liner is located above the base; the drainage electric control valve and the maintenance module are positioned below the lower engine base. The water inlet and outlet ends of the electric drainage valve fixed on the maintenance module are respectively connected with two inner end water gaps of the corresponding butt joint pipeline. Two outer end water ports of the maintenance module butt joint pipeline or two equidirectional butt joint water ports are arranged to be in sealing butt joint with two corresponding equidirectional water ports of the base discharge pipeline; or one equidirectional butt joint water gap corresponding to the water inlet end is in sealed butt joint with the equidirectional water gap of the base discharge pipeline, and the outer end water gap corresponding to the water outlet end is directly connected with the discharge pipeline, so that the height of the rear end of the electric drainage valve is reduced to facilitate drainage.

In the above 1-6 embodiments, the water passing control component is at least one component of a water passing electric control valve, a water pressure control switch, a flow sensor, a booster pump, a membrane concentrated water discharge flow control device, an ultraviolet sterilizer, or a combined docking cavity, wherein the water passing electric control valve comprises a water inlet electric control valve, a water discharge electric control valve, a water return electric control valve, a valve overflow electric control valve, and the water passing electric control valve further comprises a water purification electric control valve located at the end of the filtering channel; the water pressure control switch comprises a high water pressure control switch provided with an inlet water pipeline interface and an outlet water pipeline interface, and a low water pressure control switch provided with a water pipeline interface. The 2-10 water passing control components comprise the control components, the upper limit of the number of the control components is not limited to 10, the listed various control components are not required to be used simultaneously, and in addition, the control components of the same type are not limited to be used in multiple places.

In the above 1-6 embodiments, the maintenance module is further provided with a fastening structure which is connected and matched with the fastening device; the corresponding fastening device is either a fastening standard component, a movable clamping device or a movable pressing plate device. The fastening standard part is a bolt in threaded connection and matching with a nut, a screw in connection and matching with a screw hole, or a pin part in insertion and matching with a pin hole; the movable clamping device comprises a clamping structure with one end inserted and the other end elastically clamped and a clamping structure with one end inserted and the other end fixed by a fastening standard component. The movable pressing plate device connects the pressing plate and the machine base by means of a fastening standard component and axially limits the position, and then the maintenance module 4 is fixed on the machine base through the rotation of the pressing plate.

In the above embodiments, the docking nozzles at one end or both ends of each docking pipeline on the maintenance module 4 have the same orientation to form the same-direction docking nozzles, that is, the axes of the docking nozzles on the maintenance module 4 are parallel and have the same orientation, and are sealed together or separated together. When the equidirectional butt joint water gap 7 on the maintenance module 4 is in sealed butt joint with the equidirectional butt joint water gap 3a correspondingly arranged on the machine base, the axes of the two butt joint equidirectional butt joint water gaps are superposed.

In the above 1-6 embodiments, the water passing electric control valve, the high-pressure switch 16 and the low-pressure switch 19 are all provided with the pipeline water passing structure 11, the cover plate 10 and the electric control device 17, and the cover plate device is composed of the cover plate 10 and the electric control device 17. On the basis, a screw hole 9 can be arranged and installed on the cover plate and is connected and matched with the screw 8, and the electric control device 17 and the cover plate 10 are connected and matched with the pipeline water passing structure 11. The cover plate mounting screw hole 9 can be arranged on the pipeline water passing structure 11 and used for integrally replacing the whole water passing control part, and can also be arranged on the base and used for replacing a cover plate device of the water passing control part.

In the above 1-6 embodiments, for a control component that needs a vertical upward mode, i.e. a forward installation mode, such as a water passing electric control valve as one of the control components, the control component includes a water inlet electric control valve and a water outlet (drainage) electric control valve, and the orientation of the co-directional water inlet 7 of the docking pipeline is the same as that of the vertical forward installation control component including the water passing electric control valve, so as to ensure that when a sealing docking mode is adopted in which the docking pipeline of the lower maintenance module, the upward co-directional water inlet 7 and the upward co-directional water inlet 3a of the filtering channel are respectively in a downward co-directional docking mode, the normal operation state of the water passing electric control valve as one of the control components is in a forward installation mode in which the cover plate device is located above and the. At this time, the screw 8 fixes the electric control device 17 and the cover plate 10 on the pipeline water passing structure 11 from top to bottom. The water passing electric control valve is vertically connected and fixed with the lower maintenance module, and can be vertically detached from the maintenance module only after the lower maintenance module is detached downwards and is separated from the upward equidirectional butt joint water gap 7 and the downward equidirectional butt joint water gap 3a at each corresponding position of the filtering channel of the upper machine base in a sealing and butt joint mode. By analogy, for other control components needing vertical alignment, when the lower maintenance module is adopted and the upward equidirectional butt joint water gap 7 and the upward equidirectional butt joint water gap 3a with corresponding positions of the filter channel downward are separated from each other in a sealing butt joint mode, the structural mode that the orientation of the vertical alignment control component and the equidirectional butt joint water gap 7 of the butt joint pipeline are the same can be adopted, the lower maintenance module is disassembled, and then the control components needing vertical alignment are replaced.

In the present case, in each of the above embodiments, the water passing control component is at least one component of a water passing electric control valve, a water pressure control switch, a flow sensor, a booster pump, a membrane concentrated water discharge flow control device, an ultraviolet sterilizer, or a combined docking cavity, wherein the water passing electric control valve includes a water inlet electric control valve, a water discharge electric control valve, a water return electric control valve, a valve overflow electric control valve, and in addition, the water passing electric control valve further includes a water purification electric control valve located at the end of the filtering channel; the water pressure control switch comprises a high water pressure control switch provided with a water inlet pipeline interface and a water outlet pipeline interface, and a low water pressure control switch provided with a water inlet pipeline interface and a water outlet pipeline interface; the combined butt joint cavity is a separable sealed plug-in cavity with a built-in filter material layer or a membrane discharge concentrated water flow control device. The 2-10 water passing control components comprise the control components, the upper limit of the number of the control components is not limited to 10, the listed various control components are not required to be used simultaneously, and in addition, the control components of the same type are not limited to be used in multiple places.

The water passing control part can be connected with the machine base filtering channel through one water passing pipeline interface or connected with the machine base filtering channel through two water passing pipeline interfaces.

The water passing control part also comprises a water passing device which is provided with a water passing pipeline joint and is connected in the water passing channel, or generates an electric signal by taking the water pressure or the water flow change process in the water passing pipeline as a driving source, or controls the water flow in the water passing pipeline to change the running state of the water flow, and the disassembly of the water passing control part influences the communication of the related water passing pipelines in the filtering channel.

In the above-mentioned maintenance module of connecting each water control part of fixing to cross is connected fixedly through fastener and frame, in the technical scheme that each relevant water control part of crossing is docked the mouth of a river with corresponding syntropy butt joint mouth of a river together sealed butt joint between the mouth of a river with each corresponding department of frame filtration passageway, the maintenance module passes through fastener and frame and is connected constitution an organic whole, wherein:

for the water passing control parts needing to be integrally replaced, the maintenance module at least fixes two or more water passing control parts, and correspondingly sets a co-directional butt joint water gap connected with the water passing pipeline interface of each water passing control part and a co-directional butt joint water gap sealing butt joint structure at the corresponding position of the filtering channel of the machine base aiming at each water passing control part.

In the technical scheme that only a possibly damaged cover plate device is replaced in the maintenance process of a water passing control part with a pipeline water passing structure and the cover plate device, the maintenance module is provided with two or more water passing pipeline channels of the water passing control part, at least one cover plate device of the water passing control part is fixed, and the corresponding pipeline water passing structure is communicated with a machine base filtering channel.

And the releasing fastening device separates the maintenance module from the machine base, the sealing butt joint structure between the maintenance module and the machine base in the same-direction butt joint water gap is correspondingly released, the relevant water passing control part is correspondingly released from the sealing butt joint structure between the corresponding position of the filtering channel of the machine base in the same-direction butt joint water gap, and then the water passing control part or the cover plate device on the maintenance module is replaced.

As an improvement of the above 1-6 embodiments, the maintenance module is arranged below the filtration channel of the base, and the upward butt water ports of the multiple butt pipelines on the maintenance module are in sealed butt joint with the downward co-directional butt water ports of the corresponding positions of the upper filtration channel. For example, the filtering channel 3 is arranged on the base, and the water ports are butted downwards in the same direction at each corresponding position of the base; and sealing elements 15 are arranged on the outer sides of the pipe walls of the upward equidirectional opposite water inlets of the plurality of butt joint pipelines of the maintenance module 4 and are in sealed splicing connection with the downward equidirectional opposite water inlets of the corresponding positions of the upper filtering channels.

As a further improvement of the above 1-6 embodiments, the machine base is further provided with a movable bracket; the movable bracket is positioned at the lower part of the machine base, or a folding bracket or a telescopic bracket; when the movable support is unfolded to make the filtering channel of the base overhead, a detachable fastening device and an operation space for separating the maintenance module from the base are reserved. On the basis, a clamping device corresponding to the unfolding position state of the movable support can be arranged to lock the unfolded movable support. The movable support is usually in a folded or collapsed state and is unfolded only when the filter cartridge is repaired or replaced.

As an improvement of the above 1-6 embodiments, further comprising a control wire plug-in device; the control wire plug-in device formed by matching two parts of a connecting plug and a connecting socket can be plugged in the following four plugging modes: under the static-static mutual insertion mode that two parts are respectively fixed on the maintenance module and the base, when the maintenance module is disconnected from the base, the connecting plug and the socket of the control wire plug-in device are also disconnected from mutual insertion; in a static-dynamic mutual insertion mode formed by fixing one part I on the base and connecting the other part II inserted with the part I with the electric control device of the water passing control components on the maintenance module through the conducting wire, a connecting plug and a connecting socket of the control conducting wire plug-in device need to be separated separately so as to disconnect a circuit of the control component and separate the control component from the base. Similarly, a static-dynamic mutual insertion mode that one part two is fixed on the maintenance module and the other part one inserted with the part two is connected with the control wire on the base through a wire can be adopted, and the connection plug and the socket of the control wire plug-in device are separated independently so as to disconnect the circuit of the control component and separate the control component from the base. When a large disassembly space is needed or aiming at an environment which is not easy to operate, the two parts which are mutually inserted can be respectively connected with a control wire on the base through wires, and a movable-movable mutual insertion mode which is formed by connecting a plurality of electric control devices of the water passing control components on the maintenance module is adopted, a longer connecting wire is arranged, and a connecting plug and a socket of a control wire plug-in device are separated independently so as to separate the control component from the base by disconnecting a circuit of the control component.

When the butt joint pipeline of the upper maintenance module, the downward equidirectional butt joint water gap 7 and the upward equidirectional butt joint water gap 3a at the corresponding position of the lower filtering channel are adopted for sealing and butt joint mode, the orientation of the equidirectional butt joint water gap 7 of the butt joint pipeline fixed on the upper maintenance module is opposite to that of a control component which is fixed on the upper maintenance module and needs to be vertically and positively installed. At the moment, the control part adopts a vertical and upward forward-installed connecting structure, the butt joint pipeline of the upper maintenance module connected with the butt joint water gap of the control part, the downward equidirectional butt joint water gap 7 and the upward equidirectional butt joint water gap 3a sealing butt joint mode arranged on the machine base are not influenced. Even for the water-passing electric control valve as one of the control components, the water-passing electric control valve can be treated as a common control component (normal and stable operation can be realized in a forward and reverse loading mode) and correspondingly treated.

Regarding the water passing electric control valve, the difference between the installation mode of adopting vertical upward forward installation and the installation mode of adopting vertical downward reverse installation is that: generally, the electromagnetic valve only considers the operation parameters and states of the valve core under the influence of gravity under the condition of vertical upward forward installation, and does not consider the operation parameters and states of the valve core under the influence of gravity under the condition of vertical downward reverse installation, so that the reversely installed electric control valve cannot normally and stably operate to achieve the purpose of conducting or closing the water passing waterway.

Similarly, for other control components which need to be vertically installed due to the influence of gravity on the control element, such as a hydraulic control switch with a swing arm or a moving arm, the problem that the control element cannot normally and stably operate under the condition of reverse installation due to the action of gravity exists, and the control component needs to be vertically installed upwards.

In addition, under the sealing butt joint mode that the lower maintenance module is adopted to butt joint the pipeline, the upward equidirectional butt joint water gap 7 and the upper filtering channel are respectively and correspondingly positioned at the downward equidirectional butt joint water gap 3a, a vertical downward reverse installation mode can be adopted for a control component (comprising a water passing electric control valve specially provided with driving parameters and resetting resilience parameters) which is specially subjected to gravity treatment aiming at a control element, and the normal operation state of the water passing electric control valve serving as one of the control components is in the reverse installation mode that the cover plate is arranged below and the pipeline water passing structure 11 is arranged above.

The water passing control components related to the water purifier are conventional components, and only the water passing pipeline interfaces of the water passing control components are respectively connected with the inner end water openings of the butt joint pipelines correspondingly connected with the water passing pipeline interfaces of the water passing control components on the maintenance module, the outer end water openings of the water passing control components have the same orientation to form the same-direction butt joint water openings, and the same-direction butt joint water openings with the corresponding orientation are arranged at the corresponding positions of the filtering channel of the machine base and are in sealed butt joint with each other. Therefore, the working principle of the water control component which is vertically upwards and positively installed or vertically downwards and reversely installed is not further explained repeatedly in the scheme.

On the basis, when a side-mounted maintenance module 4 butt joint pipeline and a horizontal butt joint water gap 7 are adopted to be in a sealing butt joint mode with a horizontal same-direction butt joint water gap 3a at each corresponding position of a filtering channel of a machine base, the same-direction butt joint water gaps of the plurality of butt joint pipelines and the mounting screw holes of the cover plate are oriented to be perpendicular to each other, so that the water passing electric control valve serving as one of control parts is ensured to be in a normal running state.

As a further improvement of the above embodiments, on the basis of the above embodiments, at least one window corresponding to the water passing control component and a corresponding movable plate device, and a movable plate fastening device for fixing the movable plate device on the maintenance module may be further provided in the maintenance module; the water passing control part is fixed on the movable plate device or is integrated or can be a cover plate device part which can be plugged with the same-direction butt joint water gap in a sealing way; at least one same-direction butt-joint water gap sealing butt-joint structure is arranged between each movable plate device and each corresponding position of the machine base filtering channel; and the movable plate fastening device is released to separate the movable plate device from the maintenance module, and the water passing control part or the whole or the cover plate device part fixed on the movable plate device is correspondingly released from the sealing butt joint structure between the equidirectional butt joint water gaps arranged corresponding to the filtering channel of the machine base. The movable plate device can be detached to separate a corresponding water passing control part, and the maintenance module can also be detached to separate the water passing control part fixed on the maintenance module together with the water passing control part fixed on the movable plate device or the cover plate device of the water passing control part, so that the flexibility of maintenance operation is improved, and the difficulty of the sealed splicing operation of the butt joint pipeline of the water passing control part on the maintenance module and the filtering channel of the machine base is simplified. Meanwhile, the water passing control part and the water passing pipeline thereof are convenient to arrange, and a technical means is provided for designing a compact base and maintaining the module. Aiming at water passing control components which have higher action frequency and are easy to damage, such as a water inlet electric control valve, a high-pressure switch, a low-pressure switch, a flow sensor and a combined butt joint cavity of a 5-hour PP filter element, a single or special window and a corresponding movable plate device are correspondingly arranged on the maintenance module.

On the basis, the number of the water passing control parts fixed on each movable plate device can be increased to 2, 3, 4 and 5, the water passing control parts fixed on each movable plate device are respectively and correspondingly formed into 3, 4, 5 and 6 water passing control parts, and on the basis of the embodiments 1 to 6, a sealing butt joint structure for butt joint water gaps in the same direction between the corresponding positions of the movable plate devices and the base filtering channel is correspondingly arranged; and the movable plate fastening device is separated, so that the movable plate device and the water passing control part are separated from the maintenance module, and the sealing connection between the respective equidirectional butt joint water gaps of the movable plate device and the base is correspondingly separated. In this case, the added water control part can comprise the whole water control part, and can also comprise a cover plate device of the water control part.

As a further improvement of the above 1-6 embodiments, one machine may be provided with one maintenance module corresponding to one machine base, or a plurality of maintenance modules corresponding to one machine base. In addition, each maintenance module can be provided with at least one window and a movable plate device.

On the basis of the technical scheme that the maintenance module fixedly connected with the water passing control parts is fixedly connected with the base through the fastening device, and the butt joint water ports of the corresponding positions of the water passing control parts and the filtering channel of the base are in sealed butt joint together through the corresponding same-direction butt joint water ports, the maintenance module is also at least provided with a window corresponding to the water passing control parts and a corresponding movable plate device. The movable plate device is connected with the maintenance module through a movable plate fastening device to form a whole, wherein:

for each water passing control part needing to be integrally replaced, at least one water passing control part is fixed on each movable plate device, a equidirectional butt joint water gap connected with a water passing pipeline interface of the water passing control part is correspondingly arranged, and the movable plate device is in sealed butt joint with the equidirectional butt joint water gap at the corresponding position of the filtering channel of the machine base while being fixedly connected with the maintenance module through a movable plate fastening device.

In the technical scheme that only a cover plate device which is possibly damaged is replaced in the maintenance process of a water passing control component with a pipeline water passing structure and the cover plate device, at least one cover plate device of the water passing control component is fixed on a related movable plate device, and the pipeline water passing structure of a co-directional butt joint water gap is correspondingly arranged to be communicated with a machine base filtering channel. The movable plate device is fixedly connected with the maintenance module through the movable plate fastening device, and meanwhile, the movable plate device is in sealing butt joint with the same-direction butt joint water gap at the corresponding position of the machine base filtering channel.

And the movable plate fastening device is released, so that the sealing butt joint structure of the same-direction butt joint water gap between the movable plate device and the corresponding position of the base filtering channel is correspondingly released, and then the water passing control part or the cover plate device or the water passing control part and the cover plate device on the maintenance module are correspondingly replaced.

The maintenance module and the movable plate device fixed on the maintenance module are separated from the base together.

Now, taking another connection mode of connecting the booster pump 14 and the high-voltage switch 16 behind it with the base filtering channel as an example, the connection relationship between the water passing control part, the movable plate device, the maintenance module and the base will be described: the water inlet and the water outlet of the booster pump fixed on the lower maintenance module are in butt joint in the same direction with the water inlet of the upper machine base at the corresponding position of the filtering channel respectively; the maintenance module is provided with a window corresponding to the water passing control part and a corresponding movable plate device, and the movable plate device for fixing the high-voltage switch 16 is fixedly connected with the maintenance module into a whole through a movable plate fastening device. On the basis of the above steps:

the first mode of connection and disconnection between the high-voltage switch 1 and the base filtering channel is as follows: the mode that the water inlet and the water outlet of the high-voltage switch 16 are arranged into two vertical upward same-direction butt joint water gaps and are respectively in sealing butt joint with the same-direction butt joint water gap at the corresponding position of the upper engine base filtering channel, the high-voltage switch 16 is connected in series in the engine base filtering channel, and the movable plate fastening device is disconnected can be adopted, so that the movable plate device is separated from the maintenance module, and meanwhile, the sealing butt joint structure of the same-direction butt joint water gaps between the whole high-voltage switch 16 and the corresponding position of the engine base filtering channel is correspondingly disconnected.

The connection and separation mode of the high-voltage switch 1 and the machine base filtering channel is as follows: the water passing control part fixed on the movable plate device is a cover plate device part which can be plugged with the same-direction butt joint water gap in a sealing way; the cover plate device which consists of a cover plate, an electric control device and a sealed moving part linked with the electric control device is matched with a pipeline water passing structure part fixed on a machine base filtering channel in a sealing and inserting way through a water gap which is butted in the same direction and is additionally arranged: and the movable plate fastening device is separated, so that the movable plate device is separated from the maintenance module, and simultaneously, the sealing butt joint structure of the same-direction butt joint water gap between the cover plate device part of the high-voltage switch 16 and the corresponding part of the machine base filtering channel is correspondingly separated.

In addition, a booster pump water inlet fixed on the lower maintenance module can be set into a same-direction butt joint water port to be in sealing butt joint with a same-direction butt joint water port at a corresponding position of the upper engine base filtering channel respectively, a water outlet of the booster pump water inlet is connected with a water inlet pipeline interface of a high-voltage switch 16 positioned on the movable plate device through a hose, and a water outlet pipeline interface of the high-voltage switch 16 is set into a vertically upward same-direction butt joint water port to be in sealing butt joint with the same-direction butt joint water port at the corresponding position of the; and the movable plate fastening device is separated, so that the movable plate device is separated from the maintenance module, and simultaneously, the sealing butt joint structure of the same-direction butt joint water gap between the whole high-voltage switch 16 and the corresponding position of the machine base filtering channel is correspondingly separated. The fastening device is separated, so that the maintenance module and the movable plate device are separated from the base, and meanwhile, the booster pump 14 and the sealing butt joint structure of the water gap in the same direction butt joint between the whole high-voltage switch 16 and the corresponding position of the filtering channel of the base are correspondingly separated. Similarly, the water inlet and the water outlet can be arranged and fixed on a pipeline water passing structure on the filtering channel of the base, and the structural mode of the mode two is adopted on the premise that the water inlet is connected with the hose.

In the above embodiments, the maintenance module usually adopts a plate structure or a stepped plate structure, and on the basis of this, a groove or a hole may be formed in the plate to facilitate heat dissipation or weight reduction. In addition, reinforcing ribs can be arranged to form a plate frame structure so as to increase the folding strength and the deformation resistance.

In the above embodiments, the water passing control part is provided with a water passing pipeline interface and is connected in the water passing channel. The disassembly of the water passing control component affects the communication of the water passing pipeline and the control of the water passing pipeline.

In the above embodiments, no matter what monitoring mode of the filtering channel is adopted by each water passing control component, the conventional control components are combined and matched, so that the water passing control component is not limited to the above seven types of water passing control components, and all the water passing control components are provided with water passing pipeline connectors and connected in the water passing channel, and the water pressure or water flow change process in the water passing pipeline serves as a driving source to generate an electric signal, such as various hydrodynamic sensors, or a water passing device which controls the water flow in the water passing pipeline by means of external force to change the running state of the water flow, and the communication of the water passing pipeline is influenced by the disassembly of the water passing control component. Such as a reversing valve, a flow valve and a pressure reducing valve which take manual or electric power as external force.

In the above embodiments, in two structural modes that the same-direction butt-joint water gap on the maintenance module and the same-direction butt-joint water gap in the corresponding position of the base filtering channel are correspondingly arranged and are in sealed butt joint, a sealed plug-in mode of a sealing element is preferably arranged between the pipe walls of the same-direction butt-joint water gap and the base filtering channel. At this moment, even if a gap exists between the maintenance module and the base or between the movable plate device and the maintenance module, the sealing butt joint between the equidirectional butt joint water gap of the butt joint pipeline on the maintenance module and the corresponding orientation equidirectional butt joint water gap of the water passing pipeline at the corresponding position of the base is not influenced.

In the scheme, a plurality of related water passing control components are arranged on the maintenance module together only in a determined filtering channel monitoring operation mode, water gaps (connecting ends of the non-water passing control components) at the outer ends of the butt joint pipelines for connecting the water passing control components are arranged to be butt joint water gaps in the same direction, and the water passing pipeline interfaces are in sealing butt joint with the water passing pipeline interfaces of the base and are in sealing butt joint with the water passing pipeline interfaces of the base. The user detects each water passing control part of the machine through a self-checking mode set by the machine, prompts the abnormal water passing control part according to the machine, or automatically disassembles the maintenance module under the remote guidance of manufacturers and distribution units, and then replaces the abnormal water passing control part, thereby completing the maintenance of the machine.

As a further improvement of the above embodiments, the maintenance module is further connected and matched with an electric control device (not labeled); the electric control device at least comprises a power supply or an electric controller or an ultraviolet lamp driver or a circuit overload protector comprising a fuse wire device. The electric control device is also fixed on the maintenance module so as to be convenient to detach and replace.

On the basis of the above embodiments, the protection scope of the present application includes, but is not limited to, the above embodiments. The technical means and principles in the above embodiments may be recombined to derive a new embodiment as required, and the present application also falls within the protection scope of the present application.

Claims (10)

1. A connection method of maintenance module and filtering channel for water purifier control component, the base fixes the filter liner and sets up many water-through pipelines connecting each filter liner, and the water-through control component forms the filtering channel; the water passing control part is at least one part of a water passing electric control valve, a water pressure control switch, a flow sensor, a booster pump, a membrane concentrated water discharge flow control device, an ultraviolet sterilizer or a combined butt joint cavity; the filter is characterized by also comprising equidirectional butt joint water gaps which are parallel or coincident to the axes of the water gaps around the water passing control parts, maintenance modules which are connected and matched with the water passing control parts and provided with fastening structures, and fastening devices which are connected and matched with the fastening structures; the maintenance module is provided with a plurality of butt joint pipelines, the inner end water gaps of the maintenance module are correspondingly connected with the water passing pipeline interfaces of the water passing control part, and the outer end water gaps of the maintenance module have the same orientation to form equidirectional butt joint water gaps; the maintenance module fixedly connected with each water passing control component is connected with the base into a whole through a fastening device, and is correspondingly connected with a plurality of same-direction butt joint water gaps of each water passing pipeline interface and is sealed and butted together with the same-direction butt joint water gaps with corresponding directions arranged at corresponding positions of the filtering channel of the base; the maintenance module is separated from the machine base by the separation fastening device, the sealing butt joint structures between the maintenance module and the machine base in the same direction butt joint water gaps are correspondingly separated, and the pipeline connection between the related water passing control component and the machine base filtering channel is correspondingly separated.

2. The method according to claim 1, wherein at least one of the water control units of the maintenance module comprises a cover plate assembly comprising a water passing structure with a water passing pipe joint, an electric cover plate and an electric control device; the cover plate device is fixed on the maintenance module, and the maintenance module is fixed on the base through the fastening device, so that the sealing butt joint of the water gaps in the same direction between the pipeline water passing structure and the cover plate device is realized; the water passing control part corresponding to the sealing butt joint mode of arranging the equidirectional butt joint water gap between the cover plate device part and the pipeline water passing structure part comprises a water passing electric control valve, a water pressure switch, a flow sensor, a membrane concentrated water flow control device or a detachable sealing butt joint part of a combined butt joint cavity.

3. The method of claim 1, wherein the water control unit is a detachable sealing docking unit of a sealing docking mode using a cover unit portion and a pipe water passing structure portion with a docking port in the same direction therebetween, wherein the cover unit portion is fixed to the maintenance module, and the pipe water passing structure with the water passing pipe interface is fixed to the housing; the machine base filtering channel passes through a communicating pipe water passing structure of a water passing pipeline connector, and a same-direction butt joint water gap which is connected and matched with the cover plate device is additionally arranged on the pipeline water passing structure; the sealed butt joint mode of the equidirectional butt joint water gap between the maintenance module and the machine base is a sealed butt joint mode of the equidirectional butt joint water gap on the cover plate device and the pipeline water passing structure: the maintenance module is connected with the base into a whole through the fastening device, the cover plate device is fixed on the pipeline water passing structure in a sealing mode, and the pipeline water passing structure and the cover plate device are in butt joint with the water gap in the same direction in a sealing mode; and the fastening device is disengaged, so that the maintenance module is separated from the machine base, and the sealing butt joint structure for butt joint the water gap in the same direction between the pipeline water passing structure and the cover plate device is correspondingly disengaged.

4. The method according to claim 3, wherein when the combined docking chamber is required to be a cover plate device for sealably inserting the same-direction docking ports in each of the water control units on the maintenance module, the first housing of the combined docking chamber is fixed on the base as a pipeline water passing structure and is connected to the corresponding position of the filtration channel of the base through the water passing pipeline port, the second housing of the combined docking chamber is fixed on the maintenance module as a cover plate device, and the sealed docking positions of the two housings form a sealed docking structure for the same-direction docking ports; the sealed butt joint mode of the equidirectional butt joint water gap between the maintenance module and the machine base is a sealed butt joint mode of the equidirectional butt joint water gap on the cover plate device and the pipeline water passing structure: the maintenance module is connected with the base into a whole through the fastening device, the cover plate device is fixed on the pipeline water passing structure in a sealing mode, and the pipeline water passing structure and the cover plate device are in butt joint with the water gap in the same direction in a sealing mode; the maintenance module is separated from the machine base by the separation fastening device, the sealing butt joint structure of the equidirectional butt joint water gap between the cover plate device and the pipeline water passing structure is correspondingly separated, and then the built-in filter material layer bare liner of the combined butt joint cavity or the built-in plug-in type membrane drainage concentrated water flow control device or the built-in rotor device is replaced.

5. The method for connecting a maintenance module for a control part of a water purifier with a filtering channel according to claim 1, 2, 3 or 4, wherein the maintenance module is positioned below the filtering channel of the base, and the maintenance module is in sealing butt joint with the corresponding parts of the filtering channel of the base through vertical co-directional butt water gaps; the fastening device is disengaged, and the maintenance module is moved downward to be separated from the base filter passage.

6. The method according to claim 5, wherein the base further comprises a movable bracket; the movable bracket is positioned at the lower part of the machine base, or a folding bracket or a telescopic bracket; when the movable support is unfolded to make the bottom of the machine base overhead, a detaching and fastening device and an operation space for separating the maintenance module from the machine base are reserved.

7. The method according to claim 5, wherein the water discharge control unit comprises an electric control valve for water discharge, and the electric control valve for water discharge and the maintenance module are located below the base; the water inlet and outlet ends of the drainage electric control valve fixed on the maintenance module are respectively connected with two inner end water gaps of the corresponding butt joint pipeline; two outer end water ports of the maintenance module butt joint pipeline or two equidirectional butt joint water ports are arranged to be in sealing butt joint with two corresponding equidirectional water ports of the base discharge pipeline; or one equidirectional butt joint water gap corresponding to the water inlet end is in sealed butt joint with the equidirectional water gap of the base discharge pipeline, and the outer end water gap corresponding to the water outlet end is directly connected with the discharge pipeline.

8. The method for connecting a maintenance module for a control part of a water purifier with a filtering passage according to claim 1, 2, 3, 4, 6 or 7, wherein the maintenance module is located above the filtering passage of the base, and the co-directional docking nozzle of the docking pipeline fixed on the maintenance module is opposite to the orientation of the water passing control part fixed on the maintenance module; the downward equidirectional butt joint water gap of the maintenance module is in sealed butt joint with the upward equidirectional butt joint water gap at each corresponding position of the lower base filtering channel; the maintenance module is disassembled and then the water passing control part which is vertically installed is replaced.

9. The method for connecting a maintenance module for a control part of a water purifier with a filtering channel as claimed in claim 1, 2, 3, 4, 6 or 7, wherein the maintenance module is further provided with at least one window corresponding to the water control part and a corresponding movable plate device, and a movable plate fastening device for fixing the movable plate device on the maintenance module; the water passing control part is fixed on the movable plate device or is integrated or can be a cover plate device part which can be plugged with the same-direction butt joint water gap in a sealing way; at least one same-direction butt-joint water gap sealing butt-joint structure is arranged between each movable plate device and each corresponding position of the machine base filtering channel; and the movable plate fastening device is released to separate the movable plate device from the maintenance module, and the water passing control part or the whole or the cover plate device part fixed on the movable plate device is correspondingly released from the sealing butt joint structure between the equidirectional butt joint water gaps arranged corresponding to the filtering channel of the machine base.

10. The method for connecting a maintenance module for a control part of a water purifier to a filtering passage according to claim 1, 2, 3, 4, 6 or 7, wherein the maintenance module is further connected and matched with an electric control device; the electric control device comprises a power supply or an electric controller or an ultraviolet lamp driver or a circuit overload protector.

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