CN210001634U

CN210001634U - same-end three-interface piece, same-end three-interface assembly, quick-connection filter element and water purifier

Info

Publication number: CN210001634U
Application number: CN201920590842.5U
Authority: CN
Inventors: 徐立农; 黄樟焱
Original assignee: Jiangsu Cikon Environmental Appliance Co Ltd
Current assignee: Jiangsu Cikon Environmental Appliance Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-01-31
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses a kind of same-end three interface spare, same-end three interface subassembly, connect filter core and purifier soon, wherein same-end three interface spare includes the interface body, the inside three mutually independent rivers of being equipped with of interface body says, every rivers way communicates respective rivers mouth separately, interface body outside is provided with coupling part and rivers way interface part, three rivers mouth sets up at rivers way interface part, rivers say the interface part outside still is equipped with annular groove and heterotypic sealing washer slot, heterotypic sealing washer slot includes second annular groove, third annular groove, the straight slot of and the straight slot of second, the second annular groove is connected to the end of straight slot and the straight slot of second, third annular groove is connected to end in addition, there are two rivers mouths to be located the both sides of straight slot and the straight slot of second respectively, rivers mouths are located between the annular groove of second annular groove and the second annular groove in addition, compare with prior art when the utility model discloses can reduce the quick-connection filter core and connect the interior pressure thrust of filter core when the kneck at the.

Description

same-end three-interface piece, same-end three-interface assembly, quick-connection filter element and water purifier

Technical Field

The utility model relates to a water purification unit field, concretely relates to kind with three interface fittings, with three interface assembly, connect filter core and purifier soon.

Background

The reverse osmosis filter element in the domestic water purifier needs to be replaced in time when the service life is over, so as to ensure that the water quality of the water discharged by the machine meets the sanitary requirement and the water discharge flux meets the requirement, in order to reduce the operation difficulty during the replacement of the filter element, in recent years, a great number of quick-connection filter elements which are convenient to disassemble and assemble are used, a raw water inlet, a concentrated water outlet and a purified water outlet of the filter element are arranged at the same ends of the filter element, a filter element seat which is matched with the filter element and can be provided with the filter element is arranged on the water purifier, the disassembly of the filter element from the filter element seat means that all water inlets and water outlets of the filter element are disconnected with water paths on the filter element seat, the installation of the filter element on the filter element seat means that all water inlets and water outlets of the filter element are communicated with corresponding water paths on the filter element seat, therefore, the disassembly of the filter element is simultaneously along with the disconnection and connection of pipelines between the filter element seat and the filter element, at present, all inlets and outlets of the reverse osmosis quick-connection filter elements (the reverse osmosis filter element in the prior art) have the concentric circles at the joint of a water flow channel which is arranged in the water outlet which is arranged in the same as the outer circle, the outer circle of a large circle 3002, the outer circle of the water outlet of a large circle of a water purification structure which is the outer circle of a large circle of a water outlet which is arranged in the outer circle of:

1. the internal pressure thrust of the filter element at the filter element interface is relatively large when the filter element runs.

As the resistance of water flow is small in the process that the raw water flows from the raw water inlet end of the rolled membrane component to the concentrated water outlet end through the raw water side of the reverse osmosis membrane, the water pressure of the raw water inlet end of the rolled membrane component is approximately equal to the water pressure of the concentrated water outlet end, and the water pressures are both P2. In addition, the pure water outlet is always connected with a pressure water storage barrel, and the pressure P1 in the water storage barrel always reaches 0.3 MPa. The internal pressure thrust of the quick-connection filter element structure can be estimated according to the following formula:

where F denotes the internal pressure thrust in N, d denotes the outer diameter of the large ring 3 in mm, and d0 denotes the outer diameter of the inner circle 1 in mm. Taking a reverse osmosis fast-connection filter element produced by a certain brand enterprise in China as an example, when the outer diameter d of a large ring of the filter element is 38mm, the outer diameter d0 of an inner circle of the filter element is 8mm, the water pressure P2 at a raw water inlet is 0.6MPa, and the pressure P1 at a purified water outlet is 0.3MPa, the internal pressure thrust F is 665N calculated by the formula. This internal pressure thrust is already great. The internal pressure thrust is the force urging the cartridge and cartridge seat apart from one another. The higher the internal pressure thrust is, the higher the requirement on the connection reliability between the filter element and the water purifier is, and the greater the influence on the sealing performance of the connection between the water path in the filter element and the water path of the water purifier is. Therefore, a good design should minimize the internal pressure thrust.

2. It is inconvenient to design the water route board.

The reverse osmosis quick-connection filter element with the water inlets and the water outlets in the water flow channel joint part in the concentric circle structure requires that the positions of any two openings (inlets or outlets) corresponding to the filter element on the filter element seat of the water purifier cannot be converged at the same position of the axis of the filter element, or the axes of any two water channels of the filter element seat cannot be intersected at the same position of the axis of the filter element, so that when the plane of the water channel plate is perpendicular to the axis of the filter element (the design can obviously reduce the size of the water purifier, thereby reducing the cost), the plane determined by the water channel plate plane and a raw water inlet water channel and a concentrated water outlet water channel on the filter element seat are not at the same plane, and the planes are usually perpendicular to each other under the actual conditions, so that the connection structure between the water channel plate and the filter element seat is more complex, the manufacturing difficulty is increased, and the manufacturing cost is.

3. The diameter of the minimum cross-sectional area of a purified water outlet channel is very small due to the fact that all inlets and outlets of filter elements at the water flow channel interface part are of concentric circle structures, and the diameter of the filter elements is only 3.5mm and is smaller than the inner diameter (4.2mm) of 2 pipes in the industry, which is caused by unreasonable structure, because if the minimum cross-sectional area of the purified water outlet channel is directly increased, the diameter of the large circular ring is increased, the inner pressure thrust is obviously increased, the large inner pressure thrust is obviously increased again, and the stress state of the interface part of the filter element is further to be deteriorated.

Therefore, the same-end three-connector quick-connection filter element structure in the prior art has a room for improvement. In view of the above-mentioned drawbacks, the authors of the present invention have finally obtained the present invention through long-term research and practice.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defect, the utility model discloses the main objective aims at solving the technical problem that the interior pushing and pressing force of current quick-connection filter core is great and design the water route board not convenient for.

In order to achieve the above object, the utility model provides a kind of same-end three interface pieces, its quick-connect filter core that is used for the purifier, it includes the interface body, interface body inside is equipped with water runner, second water runner and the third water runner of mutual independence, interface body outside is provided with coupling part and water runner interface part, second 0 water runner mouth, second water runner mouth and third water runner mouth have been seted up to the water runner interface part, the second 1 water runner mouth communicates with 2 water runner, the second water runner mouth communicates with the second water runner, third water runner mouth communicates with the third water runner, the water runner interface part outside still is equipped with second annular groove and heterotypic sealing washer slot, the heterotypic sealing washer slot includes second annular groove and third annular groove to and the straight slot of second and second straight groove, the end of straight groove and second straight groove connects the second annular groove, the end connects third annular groove, the second and the second water runner mouth is located between the second annular groove and the second straight groove, the third annular groove is located both sides respectively.

Preferably, the water flow passage connecting part comprises a conical part and a cylindrical part, the lower end of the conical part is connected with the connecting part, the upper end of the conical part is connected with the cylindrical part, and the th annular groove is positioned on the cylindrical part.

Preferably, the th annular groove and the second annular groove have the same ring size, the second annular groove and the third annular groove have the same ring shape and different ring size, and the second annular groove is smaller than the third annular groove in size.

Preferably, the connection part is cylindrical, and the side surface of the connection part is provided with an external thread or a convex rib.

Preferably, the th water channel is a raw water channel, the second water channel is a concentrated water channel, and the third water channel is a purified water channel, or the th water channel is a concentrated water channel, the second water channel is a raw water channel, and the third water channel is a purified water channel.

Preferably, the th water flow channel and the second water flow channel have half-moon-shaped cross sections, and the third water flow channel has a circular cross section.

Preferably, the joint body is provided with a central tube, and the inner cavity of the central tube is the third water flow channel.

The utility model discloses provide kinds of homonymy three interface subassemblies again, it includes the homonymy three interface pieces, and with heterotypic sealing washer slot assorted heterotypic sealing washer and with annular slot assorted O shape sealing washer.

Preferably, the profiled sealing ring is an cone-shaped profiled sealing ring, which includes a th turn matched with the second annular groove, a second turn matched with the third annular groove, a th straight strip matched with the th straight groove, and a second straight strip matched with the second straight groove, ends of the th straight strip and the second straight strip are connected with the th turn, another end is connected with the second turn, the th turn and the second turn have the same shape and different size, and the th turn has a size smaller than that of the second turn.

The utility model discloses provide kinds of connect filter core soon again, it includes barrel and book formula membrane module, it still includes the adapter, and the three interface subassemblies in same end, the barrel with interface body in the three interface subassemblies in same end is constituteed connect the casing of filter core soon, the adapter with book formula membrane module is located in the casing, the water purification delivery port intercommunication of book formula membrane module the water purification passageway of the three interface subassemblies in same end, the raw water passageway of the three interface subassemblies in same end communicates earlier the raw water passageway of adapter communicates again the raw water portion of intaking of book formula membrane module, the concentrated water passageway of the three interface subassemblies in same end communicates earlier the concentrated water passageway of adapter communicates again the concentrated water portion of the three interface subassemblies in book formula membrane module.

Preferably, the adapter comprises a round pipe, a short pipe and two half-moon-shaped pipes, wherein the end of the round pipe is inwardly contracted to the end of the short pipe and is combined with the short pipe to form a body, the other end of the short pipe is provided with a sealing head, the sealing head is respectively combined with the two half-moon-shaped pipes to form a body, the inside of the short pipe is communicated with the inside of half-moon-shaped pipes, the outer side of the combination part of the sealing head and the half-moon-shaped pipes or the nearby outer side is provided with a concentrated water hole communicated with the inside of the other half-moon-shaped pipes, and the middle of the sealing head.

Preferably, the outer side walls of the two half-moon-shaped pipes on the adapter are provided with grooves, and second O-shaped sealing rings are assembled in the grooves.

Preferably, anti-loosening hooks extend out of the end portions of the two half-moon-shaped tubes respectively on the adapter along the tube axis direction, and the two anti-loosening hooks are hooked on the side wall of the th water flow port and the side wall of the second water flow port of the adapter body respectively after the adapter and the adapter body are assembled in place.

The utility model discloses provide kinds of purifiers again, it includes connect the filter core soon, and with connect the filter core seat of filter core adaptation soon, be equipped with raw water runner, dense water runner and water purification runner on the filter core seat, after connect the filter core soon and pack into the filter core seat, raw water runner intercommunication on the filter core seat connects the raw water runner of filter core soon, and dense water runner intercommunication connects the dense water runner of filter core soon, and water purification runner intercommunication connects the water purification runner of filter core soon.

Preferably, the filter element seat is further provided with a groove corresponding to the convex rib on the three port assemblies at the same end, or an internal thread matched with the external thread on the two port assemblies at the same end.

Preferably, the filter element seat is provided with a guide convex rib or a guide curved surface on the inner side surface corresponding to the connecting part of the three interface components at the same end.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a with three interface spares, with three interface subassemblies in end, connect the filter core soon to and the purifier compares well-known technique, the interior pressure thrust at the filter core kneck when can furthest's reduction connects the filter core operation soon.

In addition, because the axis of the raw water channel on the filter element seat coincides with the axis of the concentrated water channel and is vertical to the axis of the filter element, when the plane of the water channel plate of the water purifier is vertical to the axis of the filter element, the structure is favorable for the communication between the water channel on the filter element seat and the water channel on the water channel plate, thereby the structure is simple, the size is compact, and the manufacturing cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is a schematic structural view of a three-joint assembly at the same end of a quick-connect filter element in the prior art;

FIG. 2 is a schematic structural view of a quick connect filter cartridge with a three-joint assembly at the same end and a filter cartridge seat according to the prior art;

fig. 3 is a schematic structural view of kinds of same-end three-interface members of the present invention;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 3;

fig. 6 is a schematic structural view of kinds of same-end three-port assemblies according to the present invention;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a schematic structural view of a tapered special-shaped sealing ring with two circles both being circular;

FIG. 9 is a schematic structural view of a tapered special-shaped seal ring with two rings both being quadrilateral rings;

FIG. 10 is a schematic view of kinds of quick-connecting filter elements according to the present invention;

figure 11 is a schematic view of an adapter structure;

FIG. 12 is a schematic structural view of kinds of quick-connecting filter elements of the present invention installed on a filter element seat of a water purifier;

FIG. 13 is a schematic view of a valve core assembly;

FIG. 14 is a cross-sectional view of a cartridge holder;

fig. 15 is a schematic view of the flow in the quick connect filter cartridge of fig. 12 with the raw water passage and the concentrate passage interchanged.

Detailed Description

The technical solution of the present invention will be further described with reference to the accompanying drawings and specific embodiments, it should be understood that the specific embodiments described herein are only for the purpose of explaining the present invention, and are not intended to limit the present invention.

Example

The utility model provides an kind of unisexual three interface spares, the quick-connect filter core of purifier mainly is applied to, please refer to 3 to 5, kinds of unisexual three interface spares that this embodiment provided include interface body 4, interface body 4's outside includes coupling part 5 and rivers way interface part 6, this interface body 4's inside is equipped with mutually independent rivers way 7, second rivers way 8 and third rivers way 9. rivers way interface part 6 sets up the rivers mouth 10 with rivers way 7 intercommunication, the second rivers mouth 11 with 8 intercommunications of second rivers way, the third rivers mouth 12 with 9 intercommunications of third rivers way.

The water flow passage connecting part 6 comprises a conical part and a cylindrical part, the lower end of the conical part is connected with the connecting part 5, the upper end of the conical part is connected with the cylindrical part, the outer side of the cylindrical part is provided with a annular groove 13 for installing O-shaped sealing ring, the outer side of the conical part is provided with a profiled sealing ring groove for installing a profiled sealing ring, the profiled sealing ring groove comprises a second annular groove 14, a third annular groove 15, a straight groove 16 and a second straight groove 17, preferably, the ring size of the annular groove 13 and the second annular groove 14 is the same, the ring size of the second annular groove 14 and the third annular groove 15 is the same, and the size of the second annular groove 14 is smaller than that of the third annular groove 15.

th and

second flow ports

10 and 11 are respectively located on both sides of th and second

straight grooves

16 and 17, and the third flow port 12 is located between th and second

annular grooves

13 and 14. preferably, the coupling portion 5 is cylindrical, and the side surface of the coupling portion 5 is provided with a rib 501 or external thread for coupling with the cartridge holder, wherein the th water flow channel 7 is a raw water channel, the second water flow channel 8 is a concentrated water channel, the third water flow channel 9 is a purified water channel, and inside the interface body 4, a central position is a purified water channel, and the raw water channel and the concentrated water channel are respectively located on both sides of the purified water channel, and the respective flow channels are independent from each other and do not contain each other.

Example two

The utility model provides an kind of same-end three interface subassemblies, the quick-connect filter core that mainly is applied to the purifier, please refer to fig. 6 to 8, kinds of same-end three interface subassemblies that this embodiment provided include the same-end three interface spare in above-mentioned embodiment 0, 1O shape sealing washer 18 and heterotypic sealing washer, this 2O shape sealing washer 18 matches with 3 annular groove 13 on the same-end three interface spare, this heterotypic sealing washer matches with the heterotypic sealing washer groove on the same-end three interface spare this heterotypic sealing washer is tapered heterotypic sealing washer, it includes circle 19, second circle 20, straight strip 21 and second straight strip 22, the circle 19 is connected to the end of two straight strips, another end connection second circle 20, preferably, two circles and two straight strips of this heterotypic sealing washer are style connection, wherein, circle 19 is the same with the second circle 20 shape and the size is inequality, preferably, circle 19 is less than second circle 20 size.

When the O-shaped sealing ring 18 and the special-shaped sealing ring are assembled on the same-end three-interface component, the O-shaped sealing ring 18 is located in the annular groove 13, the ring 19 is located in the second annular groove 14, the second ring 20 is located in the third annular groove 15, the straight strip 21 is located in the straight groove 16, and the second straight strip 22 is located in the second straight groove 17, at this time, the water flow port 10 and the second water flow port 11 which are arranged on the water flow channel interface component 6 are respectively located in the two non-circular ports 23 of the special-shaped sealing ring, and when the same-end three-interface component is assembled on the corresponding filter element seat on the water purifier, the three water flow channels on the filter element seat can be hermetically connected with the corresponding three water flow channels in the same-end three-interface component, namely the water flow channel 7, the second water flow channel 8 and the third water flow channel 9.

Preferably, the th turn 19 and the second turn 20 of the tapered profiled seal ring are both circular turns in this embodiment, as shown in FIG. 8. of course, in other embodiments, the th turn and the second turn of the tapered profiled seal ring may be elliptical turns, or polygonal turns in which two adjacent sides meet with a smooth transition, such as a quadrilateral turn, a pentagonal turn, a hexagonal turn, etc. as shown in FIG. 9, the th turn and the second turn of the tapered profiled seal ring are both quadrilateral turns.

EXAMPLE III

The utility model provides an kinds of quick-connect filter cores, it is mainly applied to the purifier, please refer to fig. 10 and 11, kinds of quick-connect filter cores that this embodiment provided include barrel 24, adapter 25 and spiral wound membrane module 26, and the three interface module of same-end that describe in the above-mentioned embodiment two, interface body 4 among the three interface module of same-end constitutes the casing of quick-connect filter core jointly with barrel 24, preferentially, interface body 4 and barrel 24 are style parts, perhaps interface body 4 and barrel 24 are two parts and through welding/bonding/screw thread coupling mode with style sealed connection structure that both formed, what this embodiment adopted is the welding mode and connects.

The adapter 25 and the spiral-wound membrane module 26 are both located in the housing of the filter element, the purified water outlet of the spiral-wound membrane module 26 is communicated with the purified water channel of the same-end three-port module, the raw water channel of the same-end three-port module is firstly communicated with the raw water channel of the adapter 25 and then communicated with the raw water inlet 260 of the spiral-wound membrane module 26, the concentrated water channel of the same-end three-port module is firstly communicated with the concentrated water channel of the adapter 25 and then communicated with the concentrated water outlet 261 of the spiral-wound membrane module, the spiral-wound membrane module 26 comprises a core tube 262 and a membrane group 263 wound on the core tube 262, the end opening of the core tube 262 is the purified water outlet of the spiral-wound membrane module 26, and the.

The adapter 25 is a type part comprising a circular tube 251, a short tube 252 and two half-moon shaped tubes 253, a end of the circular tube 251 is inwardly contracted to a end of the short tube 252 and is combined with the short tube 252 to form a body, the other end of the short tube 252 is provided with a sealing head 254, the sealing head 254 is respectively combined with the two half-moon shaped tubes 253 to form a body, the inside of the short tube 252 is communicated with the inside of the half-moon shaped tubes 253, a concentrated water hole 254 communicated with the inside of the half-moon shaped tube 253 is arranged at the outer side of the combined part or the vicinity of the sealing head 254 and the half-moon shaped tubes 253, a through hole 255 through which the central tube 401 can pass is arranged in the middle of the sealing head 254, grooves 256 which can be assembled with second O-shaped sealing rings 27 are arranged on the outer side walls of the two half-moon-shaped tubes 253 on the adapter 25, sealing between a raw water channel and a concentrated water channel corresponding to the interface body respectively corresponding to the adapter body and a water channel are sealed and a water-leakage-proof hook-proof connector 25 which is a hook-proof membrane module 25 which is assembled with a nanofiltration membrane module 25 and a water-proof connector 25 which is a water-proof hook-proof connector 25 which is arranged on the side wall of the membrane module 25 which is a nanofiltration membrane module 25 and a water-proof membrane module 25 which is a water-proof hook connector 25 which is a hook which is.

Example four

The utility model provides kinds of purifiers, please refer to fig. 12 to 14, kinds of purifiers that this embodiment provided include the quick-connect filter core in the third of above-mentioned embodiment and with this filter core seat 29 that connects the filter core adaptation soon, be equipped with the raw water runner on the filter core seat 29, dense water runner and water purification runner, after the filter core seat 29 is packed into to the quick-connect filter core, the raw water runner intercommunication of quick-connect filter core on the filter core seat 29 is the raw water runner, dense water runner intercommunication quick-connect filter core on the filter core seat 29 is the dense water runner, clean water runner intercommunication quick-connect filter core on the filter core seat 29 is the clean water runner of quick-connect filter core, three water routes on the filter core seat 29 and the sealed hookup between the three water route that corresponds with it realize through toper abnormal shape sealing washer and O shape sealing washer 18 on the filter core seat 29 be equipped with the slot that corresponds with the protruding muscle 501 on the three interface subassemblies of the same end, perhaps with the supporting internal thread of external screw thread on the three interface subassemblies of same end internal side the supporting, in addition, filter core seat 29 corresponds the inboard surface of three interface subassemblies of same end is equipped with the guiding convex surface of.

The filter element seat 29 also comprises a th valve and a second valve , the th valve is arranged in the raw water channel of the filter element seat 29, the th valve can be opened after the quick-connection filter element is arranged in the filter element seat 29, so that the raw water channel on the filter element seat 29 is communicated with the raw water channel on the quick-connection filter element, the second valve is arranged in the concentrated water channel of the filter element seat 29, and the second valve can be opened after the quick-connection filter element is arranged in the filter element seat 29, so that the concentrated water channel on the filter element seat 29 is communicated with the concentrated water channel on the quick-connection filter element.

The th valve is composed of a raw water passage cavity on the filter element seat 29 and a valve core assembly 30, the second valve is composed of a concentrated water passage cavity on the filter element seat 29 and the valve core assembly 30, wherein the valve core assembly 30 comprises a spring 301, a valve core 302 and a sealing ring 303, the sealing ring 303 is arranged on the valve core 302, a convex rod 304 for opening the valve is further arranged on the valve core 3502, the end of the spring 301 is abutted against the valve core 302, the end is abutted against an anti-rotation plate 31, the quick-connection filter element is respectively provided with a tenon-shaped structure 32 which can press the convex rod 304 to open the valve in the process of installing the filter element into the filter element seat, the plug 33 is abutted against the anti-rotation plate 31, the plug 33 is fixedly connected with the water passage cavity in a rotary melting method, and mutually matched teeth and grooves are arranged between the side part of the anti-rotation plate 31 and the side wall of the water passage cavity, and are prevented from rotating along with the spring in a meshing manner.

When the quick-connection filter element operates, raw water flows into a raw water flow passage of the filter element seat 29 through a raw water inlet, then flows into a raw water inlet part of the spiral-wound membrane module through a raw water flow passage of the same-end three-port assembly and a raw water flow passage (half-moon-shaped pipe) of the adapter 25 in sequence, then part of water passes through the membrane to become purified water and flows to a core pipe of the spiral-wound membrane module, flows out of the core pipe and then flows to a purified water outlet through the raw water flow passage (central pipe) of the same-end three-port assembly and the raw water flow passage of the filter element seat in sequence, and part of water flows to a concentrated water outlet part of the spiral-wound membrane module along the raw water side of the membrane, during which the raw water is concentrated to become concentrated water, and then flows to the concentrated water outlet through a concentrated water hole 254 of the adapter 25, a concentrated water passage (half-moon-shaped pipe) of the adapter, a concentrated water flow passage of the same-end three-port assembly and a.

When the shape of the middle ring of the special-shaped sealing ring and the shape of the middle ring of the groove of the special-shaped sealing ring correspondingly matched with the middle ring are non-circular, such as polygonal or elliptical, the filter element seat is connected with the quick-connection filter element in a bolt mode, namely bolt parts are added, the proper positions of the connecting parts of the filter element seat and the same-end three-interface assembly are respectively provided with a slot matched with the bolt, the same-end three-interface assembly is arranged in the filter element seat, and then the bolt is inserted, so that the filter element seat and the same-end three-interface.

The utility model discloses a water inlet and outlet of three interface subassemblies of same end is located the side of toper abnormal shape sealing washer, the shape of two rings on the toper abnormal shape sealing washer is the same and the size is inequality, the water inlet and outlet because of three interface subassemblies of same end is not concentric structure, so under the prerequisite of guaranteeing that water inlet passageway cross-sectional area is enough big, the big ring size of kneck still can design lessly, for example when the circle is circular, can be 28mm with big diameter d design, it is 19mm to design the small circle diameter, core pipe inner diameter (water purification passageway) designs into 7mm, because of the diameter of O shape sealing washer 18 is the same with the circle 19 diameter of toper abnormal shape sealing washer, can make the produced interior pressure thrust of water purification pressure balanced in quick-connect filter core basically, so interior pressure thrust is all produced by the water pressure on the annular projection area between the big little circle of toper abnormal shape sealing washer basically, because of membrane module follow the in-process that thick water outlet end outflow is again after the membrane module flows in the raw water inlet end of raw water flows in the membrane module, the resistance is very little, produced pressure drop can be ignored, the produced raw water pressure is considered to be approximately equal according to:

wherein F represents the internal pressure thrust in the unit of N, d represents the diameter of a large circle, d0 represents the diameter of a small circle in the unit of mm, and P represents the water pressure at the water inlet and outlet in the unit of MPa. When the water pressure at the water inlet and the water outlet is 0.6MPa, the internal pressure thrust F is 199N by the calculation of the formula.

To sum up, the utility model provides a with three interface fittings in end, with three interface components in end, connect the filter core soon to and the purifier compares well-known technique, the interior pressure thrust at the filter core kneck when the filter core operation is connected soon in reduction that can furthest.

Additionally, the utility model discloses show raw water route axis and the coincidence of dense water route axis on the filter core seat to perpendicular with the filter core axis, when purifier water route board plane is perpendicular with the filter core axis, this kind of structure is favorable to the water route intercommunication on the water route board on the water route seat, thereby makes simple structure, and the size is compact, and manufacturing cost reduces. The axis of the raw water inlet waterway and the axis of the concentrated water outlet waterway on the filter element seat only need to have the same intersection point with the axis of the filter element, so that the axis of the raw water inlet waterway and the axis of the concentrated water outlet waterway on the filter element seat do not need to be superposed, and the structure also has the advantages when the plane of the waterway plate of the water purifier is vertical to the axis of the filter element.

The minimum cross-sectional area of raw water runner and dense water runner, prior art with the utility model discloses all can design bigger, satisfy technical requirement, in other words, this is not a technological problem. The technical problem is that the minimum cross section area of a water purification channel in the quick-connection filter element with three connectors at the same end is unsatisfactory in the prior art, for example, the minimum cross section area of a water purification channel of a quick-connection filter element of a certain brand enterprise is a circular area with the diameter of 3.5mm, namely 9.6mm²The minimum part of the cross section area of the purified water flow passage of the quick-connection filter element is a circular area with the diameter of 6mm, namely 28.3mm²About 3 times as much as the prior art. Therefore, the utility model discloses more be fit for designing the domestic reverse osmosis water purification machine of large-traffic play water, satisfy the user to the demand of large-traffic play water.

The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

The same-end three-interface piece is used for a quick-connection filter element of a water purifier and comprises an interface body, a water flow channel, a second water flow channel and a third water flow channel which are independent from each other are arranged inside the interface body, a connecting part and a water flow channel connecting part are arranged outside the interface body, a water flow port, a second water flow port and a third water flow port are formed in the water flow channel connecting part, the water flow port is communicated with a water flow channel, the second water flow port is communicated with the second water flow channel, the third water flow port is communicated with the third water flow channel, the same-end three-interface piece is characterized in that a annular groove and a special-shaped seal ring groove are further arranged outside the water flow channel connecting part, the special-shaped seal ring groove comprises a second annular groove and a third annular groove, a straight groove and a second straight groove, ends of the second straight groove and the second straight groove are connected with the second annular groove, another end is connected with the third annular groove, the second water flow port and the water flow port and the third annular groove are respectively located between the second straight groove and the .
2. The kind of uniport three-port connector of claim 1, wherein the water flow interface includes a conical portion and a cylindrical portion, the conical portion connecting the coupling portion at a lower end and the cylindrical portion at an upper end, the annular groove being located on the cylindrical portion.
3. The kind of uniport three-interface member of claim 1, wherein the annular groove and the ring of the second annular groove are the same size, the second annular groove and the ring of the third annular groove are the same shape and different sizes, and the second annular groove is smaller in size than the third annular groove.
4. The kind of uniport three-interface member as claimed in claim 1, wherein the th water channel is a raw water channel, the second water channel is a concentrated water channel, and the third water channel is a purified water channel, or the th water channel is a concentrated water channel, the second water channel is a raw water channel, and the third water channel is a purified water channel.
5. The kind of uniport three-port connector of claim 1, wherein the th and second water flow passages are half-moon shaped in cross section, and the third water flow passage is circular in cross section.
6. The kind of uniport three-port fitting of claim 1, wherein the fitting body defines a central tube, the inner cavity of the central tube defining the third water flow path.
The three-port, same-end assembly of , comprising the three-port, same-end assembly of as in any of claims 1-6, and a profiled seal mating with the profiled seal groove and a O-ring mating with the annular groove.
8. The kind of same-end three-port assembly according to claim 7, wherein the profiled seal ring is a body type tapered profiled seal ring including a 0 th turn matching the second annular groove, a second turn matching the third annular groove, a th straight strip matching the th straight groove, and a second straight strip matching the second straight groove, ends of the th and second straight strips connecting the th turns, ends connecting the second turns, the th turn and the second turn are identical in shape and different in size, and the th turn is smaller in size than the second turn.
9, kind of connect filter core soon, it includes barrel and roll formula membrane module, its characterized in that, it still includes the adapter to and the same-end three interface subassemblies as claim 7 or 8, the barrel with interface body in the same-end three interface subassemblies constitutes the casing of connect the filter core soon, the adapter with the roll formula membrane module is located in the casing, the water purification delivery port intercommunication of roll formula membrane module the water purification passageway of same-end three interface subassemblies, the raw water passageway of same-end three interface subassemblies communicates earlier the raw water passageway of adapter communicates again the raw water portion of roll formula membrane module, the concentrated water passageway of same-end three interface subassemblies communicates earlier the concentrated water passageway of adapter communicates again the concentrated water portion of roll formula membrane module.
10. The quick-connecting filter element according to claim 9, wherein the adapter comprises a round tube, a short tube and two half-moon-shaped tubes, the end of the round tube is inwardly contracted to the end of the short tube and is combined with the short tube to form a body, the other end of the short tube is provided with end sockets which are respectively combined with the two half-moon-shaped tubes to form a body, the interior of the short tube is communicated with the interior of half-moon-shaped tubes, the outer side of the combination part of the end sockets and the half-moon-shaped tubes or the vicinity thereof is provided with a concentrated water hole communicated with the interior of the other half-moon-shaped tubes, and the middle of the end sockets is provided with a through hole through which.
11. The quick connect filter cartridge of claim 10, wherein the outer side walls of the two half-moon shaped tubes on the adapter are each provided with a groove into which a second O-ring seal is fitted.
12. The quick-connect filter cartridge of claim 11, wherein anti-loosening hooks extend from the adapter at the ends of the two half-moon-shaped tubes along the tube axis, and the two anti-loosening hooks are hooked on the side wall of the water flow port and the side wall of the second water flow port of the adapter body after the adapter and the adapter body are assembled in place.
13, A water purifier, which comprises the quick-connect filter element of of any one of the claims 9-12, and a filter element seat adapted to the quick-connect filter element, wherein the filter element seat is provided with a raw water channel, a concentrated water channel and a purified water channel, after the quick-connect filter element is installed in the filter element seat, the raw water channel on the filter element seat is communicated with the raw water channel of the quick-connect filter element, the concentrated water channel is communicated with the concentrated water channel of the quick-connect filter element, and the purified water channel is communicated with the purified water channel of the quick-connect filter element.
14. The kinds of water purifiers of claim 13, wherein the cartridge holder has a guiding rib or a guiding curve on the inner surface corresponding to the coupling portion of the same-end three-port assembly.