CN214360581U - Single preposed and single postpositioned composite filter element - Google Patents
Single preposed and single postpositioned composite filter element Download PDFInfo
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- CN214360581U CN214360581U CN202023072063.8U CN202023072063U CN214360581U CN 214360581 U CN214360581 U CN 214360581U CN 202023072063 U CN202023072063 U CN 202023072063U CN 214360581 U CN214360581 U CN 214360581U
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Abstract
The present disclosure relates to a single front-mounted and single rear-mounted composite filter element. The single preposed single postposition composite filter element comprises a composite filter element shell, a water drive tank assembly, a postposition filter element assembly and a preposed filter element assembly. Through driving a jar structure, leading filter core and rearmounted filter core integration formation list leading single rearmounted composite filter core together with water in this application, set up the problem that water drives a jar increase volume alone when having solved water purifier pure water bubble membrane and water demand, reduced the whole volume of water purifier, and then reduced the occupation space of water purifier in the basin cabinet, be favorable to the installation of other household electrical appliances in the basin cabinet, user experience preferred.
Description
Technical Field
The utility model relates to a water purification technology field especially relates to a single leading single rearmounted composite filter core.
Background
In order to improve the quality of drinking water, more and more households are equipped with water purifiers through which tap water or water directly supplied from a water source is treated into purified water for use.
In the related art, if the water purifier is not used for a long time, particles in front of an RO (Reverse Osmosis) membrane in an RO (Reverse Osmosis) filter element permeate to a pure water end through the RO membrane, so that the TDS (Total dissolved solids) of the first cup of water is high, and the user experience is influenced.
In order to solve the problems, the water tank or the water drive tank can be independently arranged in the water purifier to realize the pure water bubble film technology, but the independent water tank or the water drive tank can occupy the inner space of the water purifier, so that the whole volume of the water purifier is large, and the installation of other household appliances in the water tank cabinet is influenced.
SUMMERY OF THE UTILITY MODEL
To overcome the problems in the related art, embodiments of the present disclosure provide a single front-mounted and single rear-mounted composite filter element. The technical scheme is as follows:
the embodiment of the present disclosure provides a single leading single rearmounted composite filter element, single leading single rearmounted composite filter element includes:
the composite filter element shell is provided with a water source water inlet, a purified water outlet and a purified water inlet and outlet which are connected with an external water source;
the water drive tank assembly comprises a water drive tank fixing part and a water drive tank water bag, wherein the water drive tank fixing part comprises a water drive tank end cover, a water drive tank cover plate and a water drive tank support; the end cover of the water drive tank is a hollow cylinder and is fixedly connected with the top end of the composite filter element shell and the cover plate of the water drive tank respectively; the water drive tank support is a hollow cylinder and is respectively fixedly connected with the bottom end of the composite filter element shell and the water drive tank cover plate; the water drive tank cover plate is a hollow cover plate, and the hollow area of the water drive tank cover plate, the hollow area of the water drive tank cover plate and the hollow area of the water drive tank support are communicated; the water-drive tank water bag is arranged in the hollow area of the water-drive tank bracket and is fixedly connected with the water-drive tank cover plate, so that the open end of the water-drive tank water bag corresponds to the hollow area of the water-drive tank cover plate and passes through the hollow area of the water-drive tank cover plate, and the hollow area of the water-drive tank cover plate is communicated with the water source water inlet; the water drive tank support is provided with a first water through hole, the water drive tank cover plate is provided with a second water through hole, the water drive tank end cover is provided with a third water through hole, and a pure water cavity between the water drive tank water bag and the water drive tank support is communicated with the pure water inlet and outlet through the third water through hole, the second water through hole and the first water through hole;
the rear filter element assembly comprises a rear filter element fixing part and a rear filter element, and the rear filter element fixing part comprises a rear filter element central tube, a rear upper end cover and a rear lower end cover; the rear upper end cover is a hollow cover plate and is fixedly connected with the top end of the composite filter element shell; the rear lower end cover is a hollow cover plate, is fixed on one side of the water-drive tank cover plate close to the top end of the composite filter element shell and is positioned in a hollow area of the water-drive tank cover plate; the rear filter element central tube is a hollow cylinder, and the hollow area of the rear filter element central tube, the hollow area of the rear upper end cover and the hollow area of the rear lower end cover are communicated; the rear filter element is arranged in a rear cavity formed between the rear filter element central tube and the water drive tank end cover and is fixedly connected with the rear upper end cover and the rear lower end cover respectively; the rear cavity is communicated with the pure water inlet and outlet, and the rear filter element is used for carrying out rear filtering on the pure water in the pure water cavity;
the front filter element component is arranged in a hollow area of the rear filter element central tube and comprises a front filter element fixing part and a front filter element; the front filter element fixing part comprises a front upper end cover and a front lower end cover; the front upper end cover is a hollow cover plate and is fixedly connected with the top end of the composite filter element shell, and the front lower end cover is a plate-shaped cover plate; the front filter element is a hollow cylinder and is respectively fixedly connected with the front upper end cover and the front lower end cover, and the hollow inside of the front filter element is communicated with the purified water outlet through the hollow area of the front upper end cover.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: through driving a jar structure, leading filter core and rearmounted filter core integration with water and forming single leading single rearmounted composite filter core together, set up the problem that water drive a jar increase volume alone when having solved water purifier pure water bubble membrane and water demand, reduced the whole volume of water purifier, and then reduced the occupation space of water purifier in the basin cabinet, be favorable to the installation of other household electrical appliances in the basin cabinet, user experience preferred.
In one embodiment, the pure water inlet/outlet includes a first port and a second port;
the first interface is communicated with a first cavity between the rear filter element and the water-drive tank end cover, and the first cavity is communicated with the pure water cavity through the third water through hole, the second water through hole and the first water through hole;
the second interface with the rearmounted filter core with the second cavity intercommunication between the rearmounted filter core center tube, just the second cavity passes through the rearmounted filter core the third is crossed the water hole, the second is crossed the water hole and the first water hole intercommunication the pure water cavity.
In one embodiment, the pure water inlet and outlet comprises an interface, the interface is communicated with a second cavity between the rear filter element and the central tube of the rear filter element, and the second cavity is communicated with the pure water cavity through the third water through hole, the second water through hole and the first water through hole of the rear filter element.
In one embodiment, the pure water inlet and outlet, the water source inlet and the pure water outlet are located at the top end of the composite filter element shell.
In one embodiment, the first port is located at a bottom end of the composite cartridge housing; the water source water inlet, the purified water outlet and the second connector are positioned at the top end of the composite filter element shell.
In one embodiment, the water drive tank water bag comprises an elastic water bag.
In one embodiment, the water-driving water tank bag is made of an inelastic polymer material.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a block diagram illustrating a single leading and single trailing composite filter element according to one exemplary embodiment.
Fig. 2 is a block diagram illustrating a single leading and single trailing composite filter element according to an exemplary embodiment.
Fig. 3 is a block diagram illustrating a single leading and single trailing composite filter element according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The disclosed embodiment provides a single leading single rearmounted composite filter element 10, as shown in fig. 1, this single leading single rearmounted composite filter element 10 includes composite filter element casing 20, water drive tank subassembly, rearmounted filter element group spare and leading filter element group spare.
Wherein, the composite filter element shell 20 is provided with a water source inlet 201 connected with an external water source, a purified water outlet 202 and a purified water inlet and outlet 203. The water inlet 201 may be connected to an external water source to provide raw water, which may be river water, well water, or municipal tap water, and the embodiment of the present disclosure does not limit the raw water. The purified water outlet 202 is a purified water outlet purified by the front filter element 502 of the single front and single rear composite filter element 10. The pure water port 203 is used for filling pure water into the pure water cavity 10a shown in fig. 1 or for extracting pure water stored in the pure water cavity 10 a. Specifically, the pure water inlet/outlet 203 may include an interface, i.e., the two functions of filling pure water and extracting pure water are completed through the interface; or the pure water inlet and outlet 203 can also comprise two interfaces, namely, the two interfaces can respectively complete the functions of filling pure water and extracting pure water.
Referring to fig. 1, the water drive tank assembly includes a water drive tank securing portion including a water drive tank end 3011, a water drive tank cover panel 3012, and a water drive tank bracket 3013, and a water drive tank water bag 302; the water-drive tank end cover 3011 is a hollow cylinder and is fixedly connected to the top end 20a of the composite filter element shell 20 and the water-drive tank cover 3012; the water drive tank support 3013 is a hollow cylinder and is respectively fixedly connected to the bottom 20b of the composite filter element shell 20 and the water drive tank cover 3012; the water drive tank cover plate 3012 is a hollow cover plate, and the hollow area of the water drive tank cover 3011, the hollow area of the water drive tank cover plate 3012 and the hollow area of the water drive tank support 3013 are communicated; the water-drive tank water bag 302 is arranged in the hollow area of the water-drive tank bracket 3013 and is fixedly connected with the water-drive tank cover plate 3012, and the open end of the water-drive tank water bag 302 corresponds to the hollow area of the water-drive tank cover plate 3012 and passes through the hollow area of the water-drive tank cover plate 3012, and the hollow area of the water-drive tank cover 3011 is communicated with the water inlet 201 of the water source; the water drive tank support 3013 is provided with a first water through hole 3013a, the water drive tank cover 3012 is provided with a second water through hole (not shown in fig. 1), the water drive tank end 3011 is provided with a third water through hole 3011a, and the pure water cavity 10a between the water drive tank water bag 302 and the water drive tank support 3013 is communicated with the pure water inlet/outlet 203 through the first water through hole 3013a, the second water through hole and the third water through hole 3011 a.
Referring to fig. 1, the rear cartridge assembly includes a rear cartridge holder 401 and a rear cartridge 402, the rear cartridge holder 401 includes a rear cartridge center tube 4011, a rear upper end cap 4012, and a rear lower end cap 4013; the rear upper end cover 4012 is a hollow cover plate and is fixedly connected with the top end 20a of the composite filter element shell 20; the rear lower end cap 4013 is a hollow cover plate, and is fixed on one side of the water drive tank cover plate 3012 close to the top end 20a of the composite filter element shell 20, and is located in a hollow area of the water drive tank end cap 3011; the rear filter element central tube 4011 is a hollow cylinder, and a hollow area of the rear filter element central tube 4011, a hollow area of the rear upper end cover 4012 and a hollow area of the rear lower end cover 4013 are communicated; the post-filter 402 is disposed in a post-cavity (not shown in fig. 1) formed between the post-filter center tube 4011 and the water drive can end cap 3011, and is fixedly connected to the post-upper end cap 4012 and the post-lower end cap 4013, respectively; the rear cavity is communicated with the pure water inlet and outlet 203, and the rear filter element is used for carrying out rear filtration on the pure water in the pure water cavity 10 a.
Specifically, a first cavity 10b is formed between the post-cartridge 402 and the water-drive can end 3011, and a second cavity 10c is formed between the post-cartridge 402 and the post-cartridge center tube 4011. When the water flows from the first cavity 10b to the second cavity 10c, the exposed area of the rear filter element 402 in the first cavity 10b is the water inlet of the rear filter element 402, and the exposed area in the second cavity 10c is the water outlet of the rear filter element 402. When the water flows from the second cavity 10c to the first cavity 10b, the exposed area of the rear filter element 402 in the second cavity 10c is the water inlet of the rear filter element 402, and the exposed area in the first cavity 10b is the water outlet of the rear filter element 402. The post-filter 402 may include a filter material for post-treatment of pure water, such as activated carbon, an ultrafiltration membrane, or a nonwoven fabric.
Referring to fig. 1, the front filter element assembly is disposed in a hollow region of the rear filter element center tube 4011, and includes a front filter element fixing portion 501 and a front filter element 502; the front filter element fixing part 501 includes a front upper end cap 5011 and a front lower end cap 5012; the front upper end cover 5011 is a hollow cover plate and is fixedly connected with the top end 20a of the composite filter element shell 20, and the front lower end cover 5012 is a plate-shaped cover plate; the front filter element 502 is a hollow cylinder, and is respectively fixedly connected with the front upper end cap 5011 and the front lower end cap 5012, and the interior of the front filter element 502 is hollow and is communicated with the purified water outlet 202 through the hollow area of the front upper end cap 5011.
Specifically, the front filter element assembly is disposed in the hollow region of the rear filter element center tube 4011, that is, the front filter element 502 can extend from the hollow region of the rear filter element center tube 4011 to the bottom end 20b of the composite filter element housing 20 to the interior of the water-drive tank water bag 302, at this time, the region of the front filter element 502 exposed in the hollow region of the rear filter element center tube 4011 and the interior of the water-drive tank water bag 302 is the water inlet of the front filter element 502, and the hollow region of the front filter element 502 is the water outlet of the front filter element 502. The pre-filter 502 may include at least one filter material selected from activated carbon, PP cotton, folded paper PP, and non-woven fabric. The PP cotton can also be called filling cotton, is common artificial chemical fiber and is made of polypropylene fiber for artificial chemical fiber. The pre-filter element 502 is specifically used for filtering colloid impurities, micro-mud, iron rust or large granular substances such as insect eggs and the like in raw water, and adsorbing organic pollutants and residual chlorine in the raw water. In practical application, this leading filter core 502 mainly is for subsequent reverse osmosis filter core is carried out the preliminary treatment, filters large particulate matter and harmful substance, prevents to cause the damage to devices such as reverse osmosis filter core on the follow-up water route, prolongs the life-span of water purifier.
Taking fig. 1 as an example to illustrate the flow direction of the water path of the single front-mounted single rear-mounted composite filter element 10, the single front-mounted single rear-mounted composite filter element 10 is generally disposed behind an external water source inlet port of the whole water purifier, that is, the external water source inlet port is connected to the water source inlet 201 of the composite filter element housing 20, and raw water of the external water source can flow into the water-driving tank water bag 302 from the water source inlet 201 through a gap between the rear-mounted filter element central tube 4011 and the front-mounted filter element 502. Since the pre-filter 502 is deep inside the water-driving tank water bag 302, the raw water flowing into the water-driving tank water bag 302 can enter the pre-filter 502, and then flow out of the hollow area of the pre-filter 502 after being purified by the pre-filter 502. Since the hollow inside of the front filter element 502 is communicated with the purified water outlet 202 through the hollow area of the front upper end cap 5011, the purified water flowing into the hollow area of the front filter element 502 can flow out from the purified water outlet 202, so as to be conveyed to the reverse osmosis filter element for further filtration treatment through a corresponding pipeline.
Pure water obtained by filtering through the reverse osmosis filter element can enter the single preposed single postpositional composite filter element 10 again through the pure water inlet and outlet 203, which is illustrated in fig. 1 by taking an example that the pure water inlet and outlet 203 comprises a first connector 2031 and a second connector 2032, the first connector 2031 is communicated with a first cavity 10b formed between the postpositional filter element 402 and the water-driving tank end cover 3011, and is used for filling pure water into the pure water cavity 10a, and at this time, the first cavity 10b is communicated with the pure water cavity 10a through the third water through hole 3011a, the second water through hole and the first water through hole 3013 a; the second connection 2032 is connected to the second cavity 10c formed between the rear filter element 402 and the rear filter element central tube 4011, and pure water can be extracted from the pure water cavity 10a for pure water film or drinking by the user, and the second cavity 10c is connected to the pure water cavity 10a through the third water passing hole 3011a, the second water passing hole and the first water passing hole 3013a of the rear filter element 402.
Pure water filtered by the reverse osmosis filter element can enter the first cavity 10b through the first connector 2031, then flow into the cavity formed by the water drive tank end cover 3011 and the composite filter element shell 20 from the third water through hole 3011a arranged on the water drive tank end cover 3011, then flow into the cavity formed by the water drive tank support 3013 and the composite filter element shell 20 from the second water through hole arranged on the water drive tank cover 3012, and further flow into the pure water cavity 10a for storage from the first water through hole 3013a arranged on the water drive tank support 3013.
When a user takes water or needs a pure water bubble film, pure water in the pure water cavity 10a may flow into the cavity formed by the water drive tank support 3013 and the composite filter cartridge housing 20 through the first water through holes 3013a, then flow into the cavity formed by the water drive tank end 3011 and the composite filter cartridge housing 20 through the second water through holes, and then flow into the first cavity 10b from the third water through holes 3011 a. The pure water flowing into the first cavity 10b can enter the post-filter 402, and enter the second cavity 10c after being filtered by the post-filter 402, and then be discharged into a subsequent water path from the second port 2032 communicated with the second cavity 10 c.
It should be noted that the raw water stored in the water-driving tank water bag 302 may serve to adjust the amount of the pure water stored in the pure water cavity 10 a. When the pressure of the pure water in the pure water cavity 10a is greater than the pressure of the raw water in the water-driving tank water bag 302, it indicates that the pure water cavity 10a needs to store more pure water, and at this time, the water-driving tank water bag 302 presses the cavity between the pre-filter element 502 and the water-driving tank water bag 302 to discharge the water therein, so that the volume of the pure water cavity 10a is increased, and the amount of the stored pure water is increased; when the pressure of the pure water in the pure water cavity 10a is lower than the pressure of the raw water in the water-driving tank water bag 302, indicating that the pure water needs to be discharged, the water-driving tank water bag 302 focuses on the raw water and presses the pure water cavity 10a, so that the volume of the pure water cavity 10a is reduced, the amount of the pure water stored therein is reduced, and the pure water is discharged through the second port 2032. Specifically, the water-driving tank water bag 302 may be an elastic water bag, or may be made of an inelastic polymer material. If the pure water stored in the pure water cavity 10a is used for drinking, the water-driving tank-water bag 302 may be made of food grade material.
In the technical scheme that this disclosed embodiment provided, through driving a jar structure with water, leading filter core and rearmounted filter core integration together and form single leading single rearmounted composite filter core, set up the problem that water drives a jar increase volume alone when having solved water purifier pure water bubble membrane and water demand, reduced the whole volume of water purifier, and then reduced the occupation space of water purifier in the basin cabinet, be favorable to the installation of other household electrical appliances in the basin cabinet, user experience preferred.
In one embodiment, as shown in fig. 2, the pure water inlet/outlet 203 includes an interface, which is communicated with the second cavity 10c between the rear filter element 402 and the rear filter element central tube 4011, and the second cavity 10c is communicated with the pure water cavity 10a through the third water through hole 3011a, the second water through hole (not shown in fig. 2) and the first water through hole 3013a of the rear filter element 402.
For example, raw water from an external water source may flow into the water-driving tank water bag 302 from the water source inlet 201 through a gap between the post-filter central tube 4011 and the pre-filter 502, and then flow out from the hollow region of the pre-filter 502 after being purified by the pre-filter 502. Since the hollow inside of the front filter element 502 is communicated with the purified water outlet 202 through the hollow area of the front upper end cap 5011, the purified water flowing into the hollow area of the front filter element 502 can flow out from the purified water outlet 202, so as to be conveyed to the reverse osmosis filter element for further filtration treatment through a corresponding pipeline.
The pure water obtained by filtering through the reverse osmosis filter element can enter the single preposed single postpositional composite filter element 10 through the connector 203 again, namely the pure water can enter the second cavity 10c through the connector 203 and flow into the first cavity 10b after being filtered by the postpositional filter element 402, then flow into the cavity formed by the water drive tank end cover 3011 and the composite filter element shell 20 from the third water through hole 3011a arranged on the water drive tank end cover 3011, then flow into the cavity formed by the water drive tank support 3013 and the composite filter element shell 20 from the second water through hole arranged on the water drive tank cover 3012, and further flow into the pure water cavity 10a from the first water through hole 3013a arranged on the water drive tank support 3013 for storage.
When a user takes water or needs a pure water bubble film, pure water in the pure water cavity 10a may flow into the cavity formed by the water drive tank support 3013 and the composite filter cartridge housing 20 through the first water through holes 3013a, then flow into the cavity formed by the water drive tank end 3011 and the composite filter cartridge housing 20 through the second water through holes, and then flow into the first cavity 10b from the third water through holes 3011 a. The pure water flowing into the first cavity 10b can enter the post-filter 402, and enter the second cavity 10c after being filtered by the post-filter 402, and then is discharged into a subsequent water path from the interface 203 communicated with the second cavity 10 c.
In practical applications, the water source inlet 201, the purified water outlet 202 and the purified water inlet and outlet 203 may be disposed at any position of the composite filter element housing 20 as required, for example, referring to fig. 1 and 2, no matter the purified water inlet and outlet 203 includes one or two interfaces, the water source inlet 201, the purified water outlet 202 and the purified water inlet and outlet 203 may be disposed at the top end 20a of the composite filter element housing 20, so as to facilitate installation of the single front-end and single rear-end composite filter element 10.
Optionally, as shown in fig. 3, when the pure water inlet/outlet 203 includes a first connector 2031 and a second connector 2032, the first connector 2031 may be located at the bottom end 20b of the composite filter cartridge housing 20, and the water source inlet 201, the pure water outlet 202, and the second connector 2032 are located at the top end 20a of the composite filter cartridge housing 20.
At this time, pure water filtered by the reverse osmosis filter element may directly enter the pure water cavity 10a through the first connector 2031 for storage. When a user takes water or needs a pure water bubble film, pure water in the pure water cavity 10a may sequentially flow into the first cavity 10b through the first water passing hole 3013a, the second water passing hole and the third water passing hole 3011a, and enter the second cavity 10c after being filtered by the post-filter element 402, and then be discharged into a subsequent water path from the second connector 2032 communicated with the second cavity 10 c.
The embodiment of the utility model provides a single leading single rearmounted composite filter element, this composite filter element can be in the same place water drive jar structure, leading filter core and rearmounted filter core are integrated, set up the problem that water drives jar increase volume alone when having solved water purifier pure water bubble membrane and water demand, reduced the whole volume of water purifier, and then reduced the occupation space of water purifier in the basin cabinet, be favorable to the installation of other household electrical appliances in the basin cabinet, user experience preferred.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. The utility model provides a single leading single rearmounted composite filter element, its characterized in that, single leading single rearmounted composite filter element includes:
the composite filter element shell is provided with a water source water inlet, a purified water outlet and a purified water inlet and outlet which are connected with an external water source;
the water drive tank assembly comprises a water drive tank fixing part and a water drive tank water bag, wherein the water drive tank fixing part comprises a water drive tank end cover, a water drive tank cover plate and a water drive tank support; the end cover of the water drive tank is a hollow cylinder and is fixedly connected with the top end of the composite filter element shell and the cover plate of the water drive tank respectively; the water drive tank support is a hollow cylinder and is respectively fixedly connected with the bottom end of the composite filter element shell and the water drive tank cover plate; the water drive tank cover plate is a hollow cover plate, and the hollow area of the water drive tank cover plate, the hollow area of the water drive tank cover plate and the hollow area of the water drive tank support are communicated; the water-drive tank water bag is arranged in the hollow area of the water-drive tank bracket and is fixedly connected with the water-drive tank cover plate, so that the open end of the water-drive tank water bag corresponds to the hollow area of the water-drive tank cover plate and passes through the hollow area of the water-drive tank cover plate, and the hollow area of the water-drive tank cover plate is communicated with the water source water inlet; the water drive tank support is provided with a first water through hole, the water drive tank cover plate is provided with a second water through hole, the water drive tank end cover is provided with a third water through hole, and a pure water cavity between the water drive tank water bag and the water drive tank support is communicated with the pure water inlet and outlet through the third water through hole, the second water through hole and the first water through hole;
the rear filter element assembly comprises a rear filter element fixing part and a rear filter element, and the rear filter element fixing part comprises a rear filter element central tube, a rear upper end cover and a rear lower end cover; the rear upper end cover is a hollow cover plate and is fixedly connected with the top end of the composite filter element shell; the rear lower end cover is a hollow cover plate, is fixed on one side of the water-drive tank cover plate close to the top end of the composite filter element shell and is positioned in a hollow area of the water-drive tank cover plate; the rear filter element central tube is a hollow cylinder, and the hollow area of the rear filter element central tube, the hollow area of the rear upper end cover and the hollow area of the rear lower end cover are communicated; the rear filter element is arranged in a rear cavity formed between the rear filter element central tube and the water drive tank end cover and is fixedly connected with the rear upper end cover and the rear lower end cover respectively; the rear cavity is communicated with the pure water inlet and outlet, and the rear filter element is used for carrying out rear filtering on the pure water in the pure water cavity;
the front filter element component is arranged in a hollow area of the rear filter element central tube and comprises a front filter element fixing part and a front filter element; the front filter element fixing part comprises a front upper end cover and a front lower end cover; the front upper end cover is a hollow cover plate and is fixedly connected with the top end of the composite filter element shell, and the front lower end cover is a plate-shaped cover plate; the front filter element is a hollow cylinder and is respectively fixedly connected with the front upper end cover and the front lower end cover, and the hollow inside of the front filter element is communicated with the purified water outlet through the hollow area of the front upper end cover.
2. The single pre-stage single post-stage composite filter element according to claim 1, wherein said pure water inlet and outlet comprises a first port and a second port;
the first interface is communicated with a first cavity between the rear filter element and the water-drive tank end cover, and the first cavity is communicated with the pure water cavity through the third water through hole, the second water through hole and the first water through hole;
the second interface with the rearmounted filter core with the second cavity intercommunication between the rearmounted filter core center tube, just the second cavity passes through the rearmounted filter core the third is crossed the water hole, the second is crossed the water hole and the first water hole intercommunication the pure water cavity.
3. The single pre-positioned single post-positioned composite filter element according to claim 1, wherein said pure water inlet/outlet comprises a port, said port is connected to a second cavity between said post-positioned filter element and said post-positioned filter element central tube, and said second cavity is connected to said pure water cavity through said third water passing hole, said second water passing hole and said first water passing hole of said post-positioned filter element.
4. The single front and single rear composite filter element according to any one of claims 1 to 3, wherein the pure water inlet and outlet, the water source inlet and the pure water outlet are located at the top end of the composite filter element shell.
5. The single front and single rear composite cartridge of claim 2, wherein the first port is located at a bottom end of the composite cartridge housing; the water source water inlet, the purified water outlet and the second connector are positioned at the top end of the composite filter element shell.
6. The single front and single rear composite filter element of any one of claims 1, 2, 3 and 5, wherein the water drive tank water bag comprises an elastomeric water bag.
7. The single front and single rear composite filter element according to any one of claims 1, 2, 3 and 5, wherein the water-driving tank water bag is made of an inelastic polymer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023072063.8U CN214360581U (en) | 2020-12-18 | 2020-12-18 | Single preposed and single postpositioned composite filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023072063.8U CN214360581U (en) | 2020-12-18 | 2020-12-18 | Single preposed and single postpositioned composite filter element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214360581U true CN214360581U (en) | 2021-10-08 |
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| CN202023072063.8U Active CN214360581U (en) | 2020-12-18 | 2020-12-18 | Single preposed and single postpositioned composite filter element |
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