CN210410231U

CN210410231U - Ultrafiltration membrane filter and water purification system

Info

Publication number: CN210410231U
Application number: CN201921188338.9U
Authority: CN
Inventors: 董小虎; 陈子斌; 张新荣; 林艺辉; 陈宝; 凌润锌
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-04-28
Anticipated expiration: 2029-07-25

Abstract

The utility model relates to an ultrafiltration membrane filter and water purification system, wherein ultrafiltration membrane filter includes the card seat subassembly, filter core top cap and bottle, the card seat subassembly is equipped with the mounting groove, the outside of filter core top cap is equipped with first rib and second rib, be equipped with first stopping muscle on the lateral wall of mounting groove, the circumference setting of the lateral wall of mounting groove is followed to first stopping muscle, the inboard of bottle is equipped with the second stopping muscle, the circumference setting of second stopping muscle along the bottle, the filter core top cap can the screw in mounting groove, make first rib butt at the upside of first stopping muscle, the one end of keeping away from the card seat subassembly on the filter core top cap can the screw in bottle, make second rib butt at second stopping muscle downside. At the in-process of dismantling, only need stagger first rib and first stopping muscle through the rotation, stagger second rib and second stopping muscle, can realize the dismantlement process of filter core top cap. The operation process is simple, convenient and quick, and the filter element cleaning and replacing efficiency is higher.

Description

Ultrafiltration membrane filter and water purification system

Technical Field

The utility model relates to a water purification field especially relates to an milipore filter and water purification system.

Background

In the field of water purification, the filtering capacity of the filter element is a key factor for showing the water purification effect. The filter core in the water purifier needs to filter a large amount of impurities such as silt, microorganism and heavy metal in former aquatic, can produce the jam through a period of use, must change the filter core and just can normally use. However, the filter element in the water purifier is complex and the replacement cost is high. Therefore, if the filter is arranged at the upstream of the water purifier, part of impurities in the raw water are firstly filtered, and the filtered water enters the water purifier for further filtration, so that the service life of the filter element in the water purifier can be effectively prolonged. The preposed filter can be disassembled and washed, so that the service life of the filter element in the preposed filter is prolonged. However, the general pre-filter has a complex structure and low efficiency of cleaning and replacing the filter element.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an ultrafiltration membrane filter to improve the efficiency of cleaning and replacing the filter element.

An ultrafiltration membrane filter comprises a clamping seat component, a filter element top cover and a bottle body, wherein the clamping seat component is provided with a mounting groove, the outer side of the filter element top cover is provided with a first rib and a second rib, the side wall of the mounting groove is provided with a first retaining rib, the first retaining rib is arranged along the circumferential direction of the side wall of the mounting groove, the inner side of the bottle body is provided with a second retaining rib, the second retaining rib is arranged along the circumferential direction of the bottle body, the filter element top cover can be screwed into the mounting groove, so that the first rib abuts against the upper side of the first retaining rib, one end of the filter element top cover, which is far away from the clamping seat component, can be screwed into the bottle body, so that the second rib abuts against the lower side of the second stopping rib, and the filter element top cover can be detachably connected with a filter element assembly in the bottle body, and the filter element assembly is used for filtering fluid flowing through the clamping seat assembly and the filter element top cover.

According to the ultrafiltration membrane filter, during assembly, the filter element top cover is detachably connected with the filter element assembly, then the filter element assembly is inserted into the bottle body, and meanwhile, the filter element top cover is screwed into the bottle body, so that the second ribs are abutted against the lower side of the second retaining ribs; and the clamping seat assembly and the filter element top cover are rotationally buckled, so that the first rib abuts against the upper side of the first stopping rib, and the assembling process of the ultrafiltration membrane filter is realized. After a period of use, if the filter element assembly needs to be cleaned or replaced, the clamping seat assembly, the filter element top cover and the bottle body can be detached in sequence in a rotating mode. Based on the filter core top cap is installed through the mode of screw in the block seat subassembly with in the bottle, and the process of rotatory lock is through first rib with first stopping muscle, and the second rib with the butt cooperation of second stopping muscle is realized, consequently at the in-process of dismantling, only with through rotatory will first rib with first stopping muscle staggers, will the second rib with second stopping muscle staggers, can realize the dismantlement process of filter core top cap. The filter element top cover which is disassembled can be drawn out of the bottle body, and the filter element assembly is taken out at the same time. Both can be right filter element group spare washs, also can be with filter element group spare is followed the change is pulled down on the filter core top cap. The operation process is simple, convenient and quick, and the filter element cleaning and replacing efficiency is higher.

In one embodiment, a first torsion channel is formed between the bottom wall of the mounting groove and the first retaining rib at an interval, a first limiting rib is arranged at the terminal end of the first torsion channel, and the first rib is screwed in the first torsion channel in a first screwing direction.

In one embodiment, a first guide rib is arranged on the inner side of the bottle body, the first guide rib is arranged along the circumferential direction of the bottle body, a second twisting channel is formed by the first guide rib and the second retaining rib at intervals, a second limiting rib is arranged at the terminal of the second twisting channel, the second twisting channel is screwed by the second rib in a second screwing direction, and the first screwing direction is opposite to the second screwing direction.

In one embodiment, the length of the first torsion channel in the circumferential direction of the mounting groove is less than half of the circumference of the mounting groove, and the length of the second torsion channel in the axial direction of the body is less than half of the circumference of the inner wall of the body.

In one embodiment, the number of the first ribs, the number of the second ribs, the number of the first retaining ribs and the number of the second retaining ribs are two, the two first ribs are arranged at intervals in the circumferential direction of the filter element top cover, the two second ribs are arranged at intervals in the circumferential direction of the filter element top cover, the first ribs correspond to the first retaining ribs one to one, and the second ribs correspond to the second retaining ribs one to one.

In one embodiment, the ultrafiltration membrane filter further comprises a center tube, the clamping seat assembly is provided with a water inlet and a water inlet channel communicated with the water inlet, one end of the center tube is communicated with the water inlet channel, and the other end of the center tube penetrates through the filter element top cover to be communicated with the water inlet of the filter element assembly.

In one of them embodiment, be equipped with in the inhalant canal and seal the water subassembly, it is in to seal the water subassembly can follow in the inhalant canal seal the axial displacement of water subassembly, it is equipped with water seal portion to seal the water subassembly, be equipped with the lock water section in the inhalant canal, work as the water seal portion with when locking the water section cooperation the inhalant canal ends, it passes to seal the water subassembly the export of inhalant canal can with the center tube butt, work as seal the water subassembly by the center tube pushes up during inhalant canal, the water seal portion with lock water section staggers, the inhalant canal switches on.

In one of them embodiment, the water sealing component includes elastic component and ejector pin, the cover is equipped with the sealing member on the ejector pin, forms the water sealing portion, the passageway of intaking includes the erection segment, the water sealing component is installed in the erection segment, the erection segment is followed the axial setting of mounting groove, the water locking section belongs to the erection segment, the aperture of water locking section is less than the aperture of other parts of erection segment, the water sealing portion is located the water locking section is kept away from one side of center tube, the ejector pin is inserted and is established in the erection segment, the one end of ejector pin with the elastic component is connected or the butt, the ejector pin can pass under the effect of elastic component the erection segment with the center tube butt.

In one embodiment, the assembling section is a through hole, one end of the assembling section, which is far away from the central tube, is provided with a non-return valve cover, the non-return valve cover is connected with the side wall of the assembling section in a sealing manner, and the elastic member abuts between the non-return valve cover and the ejector rod.

In one embodiment, the clamping seat assembly is provided with a water outlet and a water outlet channel communicated with the water outlet, the filter element top cover is provided with a plurality of water passing holes, the water passing holes are circumferentially distributed around the central tube, and water filtered by the filter element assembly can enter the water outlet channel from the water passing holes.

In one embodiment, the ultrafiltration membrane filter further comprises a bottle cap, the bottle cap is arranged on the clamping seat assembly in a covering mode, auxiliary through holes are formed in positions, corresponding to the water inlet and the water outlet of the clamping seat assembly, of the bottle cap, and the bottle cap is connected with the clamping seat assembly in a buckling mode.

A water purification system comprises a water purifier and the ultrafiltration membrane filter, wherein a water inlet of the clamping seat assembly can be communicated with a tap water pipe, and a water outlet of the clamping seat assembly can be communicated with a raw water inlet of the water purifier.

Above-mentioned scheme provides a water purification system, through the water purifier front end sets up ultrafiltration membrane filter, the impurity in the running water is mainly by ultrafiltration membrane filter filters, effectively prolongs the life of water purifier. After a period of use, the filter element component in the ultrafiltration membrane filter can be detached for cleaning or replacement. Specifically, the ultrafiltration membrane filter has the characteristics of simplicity and convenience in disassembly and can effectively improve the efficiency of cleaning and replacing the filter element.

Drawings

FIG. 1 is an exploded view of an ultrafiltration membrane filter according to the present embodiment;

FIG. 2 is a schematic diagram of the structure of a bottle body in the ultrafiltration membrane filter of FIG. 1;

FIG. 3 is a schematic diagram of a top cap of a filter element in the ultrafiltration membrane filter of FIG. 1;

FIG. 4 is a schematic view of a cartridge assembly of the ultrafiltration membrane filter of FIG. 1;

FIG. 5 is a sectional view of the ultrafiltration membrane filter according to the present embodiment;

fig. 6 is a partially enlarged view of a portion a in fig. 5.

Description of reference numerals:

10. the ultrafiltration membrane filter comprises an ultrafiltration membrane filter body, 11, a clamping seat assembly, 111, a mounting groove, 112, a first stopping rib, 113, a first torsion channel, 114, a first limiting rib, 115, a water inlet, 116, a water inlet channel, 117, a water locking section, 118, a water outlet, 12, a filter element top cover, 121, a first rib, 122, a second rib, 123, a water passing hole, 13, a bottle body, 131, a second stopping rib, 132, a first guide rib, 133, a second torsion channel, 134, a second limiting rib, 14, a filter element assembly, 141, a membrane wire, 142, a membrane wire fixing seat, 15, a central tube, 16, a water sealing assembly, 161, a water sealing part, 162, an elastic element, 163, a push rod, 17, a check valve cover, 18 and a bottle cover.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

As shown in fig. 1-4, in one embodiment, an ultrafiltration membrane filter 10 is provided that includes a cartridge assembly 11, a cartridge top cap 12, and a vial 13. The cassette subassembly 11 is equipped with mounting groove 111, the outside of filter core top cap 12 is equipped with first rib 121 and second rib 122, be equipped with first stopping muscle 112 on the lateral wall of mounting groove 111, first stopping muscle 112 is followed the circumference setting of the lateral wall of mounting groove 111, the inboard of bottle 13 is equipped with second stopping muscle 131, second stopping muscle 131 is followed the circumference setting of bottle 13.

As shown in fig. 1, the filter top cover 12 can be screwed into the mounting groove 111 such that the first rib 121 abuts against the upper side of the first retaining rib 112, and one end of the filter top cover 12, which is away from the holder assembly 11, can be screwed into the bottle body 13 such that the second rib 122 abuts against the lower side of the second retaining rib 131.

Here, the upper side refers to a side of the first retaining rib 112 away from the outlet of the mounting groove 111, and the lower side refers to a side of the second retaining rib 131 away from the opening of the bottle body 13. When the installation angle of the ultrafiltration membrane filter 10 changes, the orientations of the first ribs 121, the first retaining ribs 112, the second ribs 122 and the second retaining ribs 131 in space change, but the relative positions of the first ribs 121 and the first retaining ribs 112 and the relative positions of the second ribs 122 and the second retaining ribs 131 do not change.

Further, in one embodiment, as shown in fig. 5, a filter cartridge assembly 14 is inserted into the bottle body 13, the filter cartridge top cover 12 is detachably connected to the filter cartridge assembly 14 in the bottle body 13, and the filter cartridge assembly 14 is used for filtering fluid flowing through the cartridge assembly 11 and the filter cartridge top cover 12. The water needing filtering reaches the bottle body 13 after passing through the clamping seat component 11 and the filter element top cover 12, and flows out of the ultrafiltration membrane filter 10 after passing through the filter element top cover 12 and the clamping seat component 11 in sequence after being filtered by the filter element component 14 in the bottle body 13.

Specifically, as shown in fig. 5 and 6, the filter element assembly 14 includes membrane filaments 141 and membrane filament holders 142 for holding the membrane filaments 141. The membrane wire 141 can be adhered to the membrane wire fixing seat 142, and the membrane wire fixing seat 142 can be connected with the filter element top cover 12 in a snap-fit manner.

During assembly, the filter element top cover 12 is detachably connected with the filter element assembly 14, then the filter element assembly 14 is inserted into the bottle body 13, and meanwhile, the filter element top cover 12 is screwed into the bottle body 13, so that the second ribs 122 abut against the lower side of the second retaining ribs 131; the clamping seat assembly 11 and the filter element top cover 12 are rotationally buckled, so that the first rib 121 abuts against the upper side of the first retaining rib 112, and the assembly process of the ultrafiltration membrane filter 10 is realized.

After a period of use, the cartridge assembly 11, cartridge top cap 12 and vial 13 can be sequentially rotated for removal if the cartridge assembly 14 needs to be cleaned or replaced. The filter element top cover 12 is installed in the clamping seat assembly 11 and the bottle body 13 in a screwing manner, and the process of rotating and buckling is realized through the abutting fit of the first rib 121 and the first retaining rib 112 and the abutting fit of the second rib 122 and the second retaining rib 131. Therefore, in the disassembling process, the first rib 121 and the first retaining rib 112 are staggered, and the second rib 122 and the second retaining rib 131 are staggered only by rotating, so that the disassembling process of the filter element top cover 12 can be realized. The removed cartridge top cap 12 can be withdrawn from the vial 13 while the cartridge module 14 is removed. The cartridge assembly 14 can then be either cleaned or removed from the cartridge top cap 12 for replacement. The operation process is simple, convenient and quick, and the filter element cleaning and replacing efficiency is higher.

The ultrafiltration membrane filter 10 may be externally attached to the front end of the water purifier, and the water inlet 115 of the ultrafiltration membrane filter 10 may be connected to a tap water pipe. The water inlet 115 and the water outlet 118 for communication are generally arranged on the clamping seat assembly 11, and the mode that disassembly can be realized only by rotating and staggering is adopted, so that the situation that the clamping seat assembly 11 rotates for many times in the disassembly process and operation is inconvenient can be effectively avoided.

Further, in one embodiment, as shown in fig. 4, a first torsion 113 is formed between the bottom wall of the mounting groove 111 and the first retaining rib 112 at an interval, a first limiting rib 114 is disposed at a terminal end of the first torsion 113, and the first rib 121 is screwed into the first torsion 113 in a first screwing direction.

The first rotation direction is a movement direction of the first rib 121, and if the cartridge top cover 12 is fixed and the cartridge assembly 11 is rotated, the rotation direction of the cartridge assembly 11 is opposite to the first rotation direction.

Further, in one embodiment, as shown in fig. 2, a first guiding rib 132 is disposed on the inner side of the bottle body 13, the first guiding rib 132 is disposed along the circumferential direction of the bottle body 13, a second twisting channel 133 is formed between the first guiding rib 132 and the second anti-back rib 131 at an interval, a second limiting rib 134 is disposed at the end of the second twisting channel 133, the second rib 122 is screwed into the second twisting channel 133 in a second screwing direction, and the first screwing direction is opposite to the second screwing direction.

Therefore, as shown in fig. 1, when the assembly of the holder assembly 11 and the filter element top cover 12 is performed by rotating the holder assembly 11, and the assembly of the filter element top cover 12 and the bottle body 13 is performed by rotating the filter element top cover 12, the rotation directions of the holder assembly 11 and the filter element top cover 12 are the same. During assembly, the clamping seat assembly 11, the filter element top cover 12 and the bottle body 13 are pre-positioned, then the clamping seat assembly 11 is rotated according to the rotating direction shown in fig. 1, the clamping seat assembly 11 is rotationally buckled with the filter element top cover 12, the clamping seat assembly 11 is continuously rotated to drive the filter element top cover 12 to rotate, the filter element top cover 12 is rotationally buckled with the bottle body 13, and the operation is convenient and rapid.

Further, in one embodiment, as shown in fig. 1, 2 and 4, the length of the first torsion channel 113 in the circumferential direction of the mounting groove 111 is less than half of the circumference of the mounting groove 111, and the length of the second torsion channel 133 in the axial direction of the bottle body 13 is less than half of the circumference of the inner wall of the bottle body 13. In the process of rotating buckling or disassembling, the assembling or disassembling process can be realized without rotating the whole circle, so that the operation process is more convenient and faster.

Further, in an embodiment, the number of the first ribs 121, the second ribs 122, the first retaining rib 112, and the second retaining rib 131 is two, the two first ribs 121 are relatively spaced in the circumferential direction of the filter element top cover 12, the two second ribs 122 are relatively spaced in the circumferential direction of the filter element top cover 12, the first ribs 121 correspond to the first retaining ribs 112 one to one, and the second ribs 122 correspond to the second retaining rib 131 one to one.

Namely, the two first ribs 121 which are oppositely arranged can enable the filter element top cover 12 to bear relatively spaced stress points under the action of the corresponding first retaining ribs 112, so that the reliability of connection between the filter element top cover 12 and the cassette assembly 11 is improved. Similarly, the reliability of the connection between the filter element top cover 12 and the bottle body 13 can be improved by the two sets of the second ribs 122 and the second retaining ribs 131.

When the first torsion bars 113 are disposed on the card holder assembly 11, there may be two first torsion bars 113, and the first torsion bars 113 correspond to the first ribs 121 one by one. When the bottle body 13 is provided with the second twisting channel 133, the number of the second twisting channels 133 may be two, and the second ribs 122 correspond to the second twisting channels 133 one by one.

Further, in one embodiment, as shown in fig. 5 and 6, the ultrafiltration membrane filter 10 further includes a center tube 15, the seat assembly 11 is provided with a water inlet 115 and a water inlet channel 116 communicated with the water inlet 115, one end of the center tube 15 is communicated with the water inlet channel 116, and the other end of the center tube 15 penetrates through the filter element top cover 12 to be communicated with the water inlet of the filter element assembly 14.

The water to be filtered enters the water inlet channel 116 from the water inlet 115 of the cartridge assembly 11, then flows through the center tube 15 to the filter cartridge assembly 14, and is filtered in the cavity formed by the bottle 13, the filter cartridge assembly 14 and the filter cartridge top cover 12.

Further, as shown in fig. 5 and fig. 6, in an embodiment, a water sealing assembly 16 is disposed in the water inlet channel 116, the water sealing assembly 16 is movable in the water inlet channel 116 along an axial direction of the water sealing assembly 16, the water sealing assembly 16 is provided with a water sealing portion 161, a water locking section 117 is disposed in the water inlet channel 116, when the water sealing portion 161 is engaged with the water locking section 117, the water inlet channel 116 is closed, the water sealing assembly 16 passes through an outlet of the water inlet channel 116 and can be abutted to the central tube 15, when the water sealing assembly 16 is pushed into the water inlet channel 116 by the central tube 15, the water sealing portion 161 is staggered from the water locking section 117, and the water inlet channel 116 is connected.

When the filter element top cover 12 and the clamping seat assembly 11 are assembled together, the central tube 15 pushes the water sealing assembly 16 into the water inlet channel 116, the water sealing portion 161 is staggered with the water locking section 117, the water inlet channel 116 is communicated, and water entering from the water inlet 115 reaches the bottle body 13 for filtering. When the filter element top cover 12 is detached from the card seat assembly 11, the water sealing assembly 16 moves in the axial direction, the water sealing portion 161 of the water sealing assembly 16 is matched with the water locking section 117 of the water inlet channel 116, and the water inlet channel 116 is stopped to achieve the water sealing effect. Preventing water from flowing out of the cartridge assembly 11 during cleaning or replacement of the filter cartridge assembly 14.

Specifically, in an embodiment, as shown in fig. 6, the water sealing assembly 16 includes an elastic member 162 and a push rod 163, a sealing member is sleeved on the push rod 163 to form the water sealing portion 161, the water inlet channel 116 includes an assembly segment, the water sealing assembly 16 is installed in the assembly segment, the assembly segment is disposed along the axial direction of the installation groove 111, the water locking segment 117 belongs to the assembly segment, the aperture of the water locking segment 117 is smaller than the apertures of other portions of the assembly segment, the water sealing portion 161 is located on one side of the water locking segment 117 away from the central tube 15, the push rod 163 is inserted in the assembly segment, one end of the push rod 163 is connected or abutted to the elastic member 162, and the push rod 163 can pass through the assembly segment under the action of the elastic member 162 to abut against the central tube 15.

When the filter element top cover 12 and the clamping seat assembly 11 are assembled together, the push rod 163 is pushed upwards by the central tube 15, the elastic force of the elastic member 162 is overcome, the push rod 163 moves upwards, the water sealing part 161 is staggered with the water locking section 117, the water inlet channel 116 is conducted, and the water in the water inlet channel 116 flows to the central tube 15 and then enters the bottle body 13.

When the filter element top cover 12 is detached from the clamping seat assembly 11, the ejector rod 163 moves downwards under the action of the elastic member 162, the water sealing part 161 is matched with the water locking section 117, and the water inlet channel 116 is cut off, so that the water leakage is effectively avoided.

Optionally, the water sealing assembly 16 may also include a conical plug and an elastic member 162, the end with the smaller radius of the conical plug faces the central tube 15, the elastic member 162 can give the elastic force of the conical plug moving toward the direction close to the central tube 15, when the filter element top cover 12 is detached from the seat assembly 11, the conical plug moves downward under the action of the elastic member 162, so as to plug the water locking section 117 of the water inlet channel 116, and the water inlet channel 116 is stopped. When the cartridge top cover 12 is assembled with the cartridge assembly 11, the center tube 15 pushes the conical plug upward against the elastic force of the elastic member 162, so that the water inlet passage 116 is opened.

Further specifically, as shown in fig. 6, in one embodiment, the assembling section is a through hole, one end of the assembling section, which is far away from the central tube 15, is provided with a non-return valve cover 17, the non-return valve cover 17 is in sealed connection with a side wall of the assembling section, and the elastic member 162 abuts between the non-return valve cover 17 and the ejector rod 163.

During the assembly, can be earlier the cover be equipped with during the ejector pin 163 of sealing member inserts in the assembly section, then will elastic component 162 inserts in the assembly section, its with ejector pin 163 butt, will at last the installation of contrary valve gap 17 is gone up again, accomplishes the installation of water sealing component 16.

Further, in an embodiment, as shown in fig. 5 and 6, the cartridge assembly 11 is provided with a water outlet 118 and a water outlet channel communicated with the water outlet 118, as shown in fig. 3, the filter cartridge top cover 12 is provided with a plurality of water through holes 123, the plurality of water through holes 123 are circumferentially distributed around the center tube 15, as shown in fig. 5 and 6, and water filtered by the filter cartridge assembly 14 can enter the water outlet channel through the water through holes 123. Forming a complete filtration circuit with the inlet channel 116, the center tube 15 and the chamber in the body 13.

Further, in one embodiment, as shown in fig. 5 and 6, the ultrafiltration membrane filter 10 further includes a bottle cap 18, the bottle cap 18 is disposed on the cartridge assembly 11, auxiliary through holes are disposed on the bottle cap 18 at positions corresponding to the water inlet 115 and the water outlet 118 of the cartridge assembly 11, and the bottle cap 18 is in snap-fit connection with the cartridge assembly 11. The cartridge assembly 11 is protected inside and the connectors connected to the inlet port 115 and the outlet port 118 of the cartridge assembly 11 are fitted through the corresponding auxiliary through-holes.

Further, in another embodiment, a water purification system is provided, which includes a water purifier and the ultrafiltration membrane filter 10 described above, wherein the water inlet 115 of the cartridge assembly 11 can be communicated with a tap water pipe, and the water outlet 118 of the cartridge assembly 11 can be communicated with a raw water inlet of the water purifier.

Above-mentioned scheme provides a water purification system, through the water purifier front end sets up ultrafiltration membrane filter 10, the impurity in the running water mainly by ultrafiltration membrane filter 10 filters, effectively prolongs the life of water purifier. After a period of use, the core assembly 14 of the ultrafiltration membrane filter 10 may be removed for cleaning or replacement. Specifically, the ultrafiltration membrane filter 10 has the characteristic of simple and quick disassembly, and the efficiency of cleaning and replacing the filter element can be effectively improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An ultrafiltration membrane filter is characterized by comprising a clamping seat component, a filter element top cover and a bottle body, the clamping seat component is provided with a mounting groove, the outer side of the filter element top cover is provided with a first rib and a second rib, the side wall of the mounting groove is provided with a first retaining rib which is arranged along the circumferential direction of the side wall of the mounting groove, the inner side of the bottle body is provided with a second retaining rib which is arranged along the circumferential direction of the bottle body, the filter element top cover can be screwed into the mounting groove, so that the first rib abuts against the upper side of the first retaining rib, one end of the filter element top cover, which is far away from the clamping seat component, can be screwed into the bottle body, so that the second rib abuts against the lower side of the second stopping rib, and the filter element top cover can be detachably connected with a filter element assembly in the bottle body, and the filter element assembly is used for filtering fluid flowing through the clamping seat assembly and the filter element top cover.

2. The ultrafiltration membrane filter of claim 1, wherein a first torsion channel is formed between the bottom wall of the mounting groove and the first retaining rib at an interval, a terminal end of the first torsion channel is provided with a first limiting rib, and the first rib is screwed in the first torsion channel in a first screwing direction.

3. The ultrafiltration membrane filter of claim 2, wherein a first guide rib is arranged on the inner side of the bottle body, the first guide rib is arranged along the circumferential direction of the bottle body, a second twisting channel is formed by the first guide rib and the second retaining rib at intervals, a second limiting rib is arranged at the terminal end of the second twisting channel, the second rib is screwed into the second twisting channel in a second screwing direction, and the first screwing direction is opposite to the second screwing direction.

4. The ultrafiltration membrane filter of claim 3, wherein said first torsion channel has a length in a circumferential direction of said mounting groove that is less than half a circumference of said mounting groove, and said second torsion channel has a length in an axial direction of said body that is less than half a circumference of an inner wall of said body.

5. The ultrafiltration membrane filter of any one of claims 1 to 4, wherein the number of the first ribs, the number of the second ribs, the number of the first retaining ribs and the number of the second retaining ribs are two, the two first ribs are arranged at intervals in the circumferential direction of the filter element top cover, the two second ribs are arranged at intervals in the circumferential direction of the filter element top cover, the first ribs correspond to the first retaining ribs one to one, and the second ribs correspond to the second retaining ribs one to one.

6. The ultrafiltration membrane filter of any one of claims 1 to 4, further comprising a central tube, wherein the clamping seat assembly is provided with a water inlet and a water inlet channel communicated with the water inlet, one end of the central tube is communicated with the water inlet channel, and the other end of the central tube penetrates through the filter element top cover to be communicated with the water inlet of the filter element assembly.

7. The ultrafiltration membrane filter of claim 6, wherein a water sealing component is arranged in the water inlet channel, the water sealing component can move in the water inlet channel along the axial direction of the water sealing component, the water sealing component is provided with a water sealing part, a water locking section is arranged in the water inlet channel, the water inlet channel is stopped when the water sealing part is matched with the water locking section, the water sealing component penetrates through the outlet of the water inlet channel and can be abutted against the central pipe, when the water sealing component is jacked into the water inlet channel by the central pipe, the water sealing part is staggered with the water locking section, and the water inlet channel is conducted.

8. The ultrafiltration membrane filter of claim 7, wherein the water sealing assembly comprises an elastic member and an ejector rod, a sealing member is sleeved on the ejector rod to form the water sealing part, the water inlet channel comprises an assembly section, the water sealing assembly is installed in the assembly section, the assembly section is arranged along the axial direction of the installation groove, the water locking section belongs to the assembly section, the aperture of the water locking section is smaller than that of other parts of the assembly section, the water sealing part is positioned on one side of the water locking section, which is far away from the central tube, the ejector rod is inserted in the assembly section, one end of the ejector rod is connected or abutted to the elastic member, and the ejector rod can penetrate through the assembly section and abutted to the central tube under the action of the elastic member.

9. The ultrafiltration membrane filter of claim 8, wherein the assembly section is a through hole, one end of the assembly section, which is far away from the central tube, is provided with a non-return valve cover, the non-return valve cover is hermetically connected with the side wall of the assembly section, and the elastic member abuts between the non-return valve cover and the ejector rod.

10. The ultrafiltration membrane filter of claim 6, wherein the clamping seat assembly is provided with a water outlet and a water outlet channel communicated with the water outlet, the top cover of the filter element is provided with a plurality of water passing holes, the water passing holes are circumferentially distributed around the central tube, and water filtered by the filter element assembly can enter the water outlet channel from the water passing holes.

11. The ultrafiltration membrane filter of any one of claims 1 to 4, further comprising a bottle cap, wherein the bottle cap is arranged on the clamping seat assembly in a covering manner, auxiliary through holes are formed in positions, corresponding to the water inlet and the water outlet of the clamping seat assembly, of the bottle cap, and the bottle cap is connected with the clamping seat assembly in a buckling manner.

12. A water purification system comprising a water purifier and the ultrafiltration membrane filter according to any one of claims 1 to 11, wherein the inlet of the cartridge assembly is capable of communicating with a tap water pipe, and the outlet of the cartridge assembly is capable of communicating with a raw water inlet of the water purifier.