CN110270224B - Liquid treatment system comprising a specially adapted structure - Google Patents

Liquid treatment system comprising a specially adapted structure Download PDF

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Publication number
CN110270224B
CN110270224B CN201810212803.1A CN201810212803A CN110270224B CN 110270224 B CN110270224 B CN 110270224B CN 201810212803 A CN201810212803 A CN 201810212803A CN 110270224 B CN110270224 B CN 110270224B
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CN
China
Prior art keywords
upper cover
liquid treatment
fixed
movable
fixed upper
Prior art date
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CN201810212803.1A
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Chinese (zh)
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CN110270224A (en
Inventor
杨卫利
金超
张春和
胡泽文
李中辉
杜成军
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Jiashan Lefeng Biotechnology Co ltd
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Jiashan Lefeng Biotechnology Co ltd
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Priority to CN201810212803.1A priority Critical patent/CN110270224B/en
Publication of CN110270224A publication Critical patent/CN110270224A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/08—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/145—Ultrafiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/147—Microfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/18—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/02—Column or bed processes
    • B01J47/022—Column or bed processes characterised by the construction of the column or container
    • B01J47/024—Column or bed processes characterised by the construction of the column or container where the ion-exchangers are in a removable cartridge
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/02—Specific tightening or locking mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/04—Specific sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/06—External membrane module supporting or fixing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/20—Specific housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/21—Specific headers, end caps
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/004—Seals, connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Nanotechnology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The special matching structure comprises a movable upper cover and a fixed upper cover on the liquid treatment device, and a joint part on the liquid treatment element, wherein the joint part is provided with a connector, a communication port capable of being communicated with the liquid treatment device is arranged on the fixed upper cover, the fixed upper cover is fixedly connected on the liquid treatment device, the movable upper cover is movably connected on the fixed upper cover, and the joint part of the liquid treatment element is fixed on the fixed upper cover through a movable part. By adopting the structure, the problems existing in the matching mode between the liquid treatment device and the consumable liquid treatment element are well solved, the connection is quick, the tightness is good, and the installation is convenient.

Description

Liquid treatment system comprising a specially adapted structure
Technical Field
The invention relates to a liquid treatment system, in particular to a matching structure applied to a liquid treatment system used in the research and production fields.
Background
The liquid treatment system in the related art generally comprises a permanent liquid treatment apparatus and a consumable liquid treatment element, and the cooperation mode for the permanent liquid treatment apparatus and the consumable liquid treatment element (hereinafter referred to as liquid treatment apparatus and liquid treatment element) mainly comprises the following steps:
1. the liquid treatment apparatus and the liquid treatment element are brought into contact with each other by means of a cooperating surface structure so as to be held in place when the liquid treatment element is mounted to the structure on the liquid treatment apparatus to prevent translational movement thereof and to retain the complementary connectors in engagement with each other. When the liquid handling element is removed, it is removed from the structure by releasing the liquid handling element by applying thereto an action which is limited to tilting it relative to the structure and guided by the interengaging connectors. The disadvantage of this approach is that: during installation, two hands are needed for operation, and certain invariance is realized for some special people. The prompt information after the installation is in place is not clear, and the risk of water leakage is possibly caused by the fact that the installation is not in place.
2. Through threaded connection. The liquid treatment device and the liquid treatment element are respectively provided with an internal thread and an external thread, and the two threads are matched together through threaded connection. The defects are that: the installation is tedious and the threads need to be further sealed with a sealing tape when connected. The threaded connection is subject to low pressure and thus is prone to leakage accidents due to excessive hydraulic pressure when the fluid handling system is in operation.
3. And is fixedly matched with the clamping hoop. The liquid treatment element is held in the liquid treatment apparatus by the clip and is engaged with the liquid treatment apparatus by the force of the clip. The defects are that: the clamp is easy to loosen, and has a certain water leakage risk. And the clamp is troublesome to install.
The above structures have some insufficient and in-use risks, and cannot best meet the needs of users.
Disclosure of Invention
The invention aims at: aiming at the current liquid treatment system, a special matching structure between a permanent liquid treatment device and a consumable liquid treatment element is provided, and the structure can realize a matching structure with simple installation, strong tightness and high bearing capacity.
The invention adopts the following structure to realize the aim: a particularly adapted structure for use in a liquid treatment system comprising a liquid treatment apparatus and a liquid treatment element, characterized in that: the liquid treating element is fixed on the liquid treating device through a special matching structure, the special matching structure comprises a movable upper cover and a fixed upper cover on the liquid treating device, and a joint part on the liquid treating element, wherein the joint part is provided with a connector, the connector is provided with a sealing structure, the fixed upper cover is provided with a communication port which can be communicated with the liquid treating device, the fixed upper cover is fixedly connected on the liquid treating device, the movable upper cover is movably connected on the fixed upper cover, the connector of the joint part of the liquid treating element is connected with a receiver of the fixed upper cover, the connector is communicated with the receiver and the communication port, and the joint part of the liquid treating element is fixed on the fixed upper cover through a movable part.
The joint part on the liquid treatment element is circular, two or more inclined wedge surface structures A are arranged on the circular joint part, and two or three connectors are arranged above the joint part; two or three receivers matched with the connector are arranged on the fixed upper cover, and a wedge surface structure B which can clamp and fix the wedge surface structure A is arranged in the movable upper cover, and the wedge surface structure A is matched with the wedge surface structure B.
The movable upper cover comprises an upper movable part and a lower movable part, the upper movable part is divided into two half structures with the same appearance along a central shaft, the upper movable part is provided with an inner concave part, the lower edge of the fixed upper cover is provided with an outer convex part, the inner concave part of the upper movable part is matched with the outer convex part of the lower edge of the fixed upper cover, the upper movable part and the lower movable part are fixed through screws, the fixed upper cover is provided with a rotation limiting bulge and an axial limiting bulge, and the upper movable part is internally provided with a matching part matched with the rotation limiting bulge of the fixed upper cover.
The wedge surface structure A on the liquid treatment element and the wedge surface structure B in the movable upper cover are respectively provided with a matched bulge and a matched recess.
At least two sealing rings are arranged on the connector.
The pitch of each connector is not equal.
By adopting the structure, a plurality of problems existing in the matching mode between the liquid treatment device and the consumable liquid treatment element are well solved: for example, the installation is tedious, the bearing capacity is insufficient, the leakage risk is large, and the installation error rate is high. The structure is used for supplying the liquid to be treated to the liquid treatment element in the liquid treatment device and receiving the treated liquid from the liquid treatment element, wherein the liquid treatment element is a consumable element, and the liquid treatment element can contain reverse osmosis, ultrafiltration, microporous filtration, ion exchange and other mediums suitable for treatment; because there is the slide wedge face structure on the joint position can cooperate with slide wedge face structure on the movable upper cover, form firm clamp structure, there is the connector on the joint position, can cooperate with the acceptor on the fixed upper cover to seal through the sealing washer, have the screw mouth on the fixed upper cover, install on liquid processing apparatus through the screw with the fixed upper cover. The movable upper cover is sleeved on the fixed upper cover. The fixed upper cover is provided with a positioning block for limiting the rotation range of the movable upper cover, and the receiver of the fixed upper cover is communicated with a pipeline of the liquid treatment device.
Drawings
FIG. 1 is a schematic illustration of one embodiment of a liquid treatment element;
FIG. 2 is an enlarged view of the joint location;
FIG. 3 is a schematic diagram of a combination of a movable upper cover and a fixed upper cover;
FIG. 4 is a bottom view of FIG. 2;
FIG. 5 is an exploded view of the movable upper cover and the fixed upper cover;
FIG. 6 is a top view of FIG. 1;
FIG. 7 is a diagram showing the cooperation of the movable upper cover and the fixed upper cover;
FIG. 8 is a diagram of a special mating structure;
fig. 9 is a diagram of an embodiment.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The special matching structure comprises a movable upper cover and a fixed upper cover on the liquid treatment device, and a joint part on the liquid treatment element, wherein the joint part is provided with a connector, the connector is provided with a sealing structure, the fixed upper cover is provided with a communication port which can be communicated with the liquid treatment device, the fixed upper cover is fixedly connected on the liquid treatment device, the movable upper cover is movably connected on the fixed upper cover, the connector at the joint part of the liquid treatment element is connected with a receiver of the fixed upper cover, the connector is communicated with the receiver and the communication port, and the joint part of the liquid treatment element is fixed on the fixed upper cover through a movable part.
The joint part on the liquid treatment element is circular, in the embodiment, two opposite sides of the circular joint part are respectively provided with an inclined wedge surface structure A, and two or three connectors are arranged above the joint part; two or three receivers matched with the connector are arranged on the fixed upper cover, and a wedge surface structure B which can clamp and fix the wedge surface structure A is arranged in the movable upper cover, and the wedge surface structure A is matched with the wedge surface structure B.
The movable upper cover comprises an upper movable part and a lower movable part, the upper movable part is divided into two half structures with the same appearance along a central shaft, the upper movable part is provided with an inner concave part, the lower edge of the fixed upper cover is provided with an outer convex part, the inner concave part of the upper movable part is matched with the outer convex part of the lower edge of the fixed upper cover, the upper movable part and the lower movable part are fixed through screws, the fixed upper cover is provided with a rotation limiting bulge and an axial limiting bulge, and the upper movable part is internally provided with a matching part matched with the rotation limiting bulge of the fixed upper cover.
The wedge surface structure A on the liquid treatment element and the wedge surface structure B in the movable upper cover are respectively provided with a matched bulge and a matched recess.
At least two sealing rings are arranged on the connector.
The pitch H and H of each connector are not equal.
Fig. 1 and 2 are schematic illustrations of one embodiment of a liquid treatment element. The upper part of the liquid treatment element 14 is a joint part 1, the joint part 1 is round, two opposite sides are respectively provided with a wedge surface structure A11, and a connector 12 is arranged above the joint part. The number of the connectors is two or three, each connector is provided with at least two sealing rings 13, and the distance H between the connectors is different from the distance H, so that the connector can be better installed and reverse installation can be prevented. A protrusion 15 on the cam surface structure a11 at the joint portion is engaged with a recess 28 on the cam surface structure B21 to ensure a better engagement of the cam surface structure a11 and the cam surface structure B21.
Fig. 3,4,5 are views of the movable upper cover and the fixed upper cover. Screw mounting holes 23 around the movable upper cover 2 are fastened by screws to fix the movable upper cover 2 and the fixed upper cover 3. The movable upper cover 2 has an indicating handle 24 for confirming whether the cam surface structure of the movable upper cover is already engaged. The fixed upper cover 3 is provided with an axial positioning block 31 and a rotary positioning block 32 for limiting the radial property and the rotary movement range of the movable upper cover. The fixed upper cover is provided with mounting holes 33, and the fixed upper cover 3 is fastened to the liquid treatment apparatus by screws. Fig. 4 is a view showing the movable upper cover 2 and the fixed upper cover 3 combined together. The screw mounting holes 23 around the movable upper cover 2 are fastened with the fixed upper cover 3 by using screws. The movable upper cover 2 is internally provided with a wedge surface structure B21 which is used for matching with the wedge surface structure A11 of the joint part 1. The movable upper cover is provided with an indicating handle 24 for confirming whether the cam structures a and B of the movable upper cover are already in place. The fixed upper cover 3 is provided with a receiver 22. The number of receptacles is two or three for mating with the connector 12 of the joint part 1. The fixed upper cover is provided with mounting holes 33, and is fastened to the liquid treatment apparatus by screws. The liquid treatment element can be fixed on the fixed upper cover 3 through the wedge-shaped structure A11 of the upper joint part of the liquid treatment element, firstly, the connector 12 of the upper joint part of the liquid treatment element 14 is inserted into the receiver 22 of the fixed upper cover 3, the movable upper cover 2 is rotated, the wedge-shaped surface structure B on the movable upper cover 2 is matched with the wedge-shaped surface structure A of the upper joint part of the liquid treatment element, the matched fixing of the liquid treatment element and the liquid treatment device is completed, the fixed upper cover 3 is provided with a communication opening 25, the communication opening 25 is communicated with the receiver 22, the receiver 22 is matched with the connector 12 of the upper joint part of the liquid treatment element 14, and the communication opening is communicated with the liquid treatment element, so that the liquid treatment element can be conveniently fixed on the liquid treatment device. As shown in fig. 5, the movable upper cover 2 can be disassembled into several different components. In this embodiment, the number of the members is three, including a lower movable portion 2C, and upper movable portions 2A and 2B, and the upper movable portion is divided into two half-shaped structures 2A and 2B having the same shape along the central axis, and for convenience of production, in a specific embodiment, the shapes of 2A and 2B are identical. When in use, the two interfaces 2A and 2B are aligned with each other to form the female-male interface 20, so that the two interfaces can be easily combined. The upper movable parts 2A and 2B are provided with inner concave parts 26, the lower edge of the fixed upper cover 3 is provided with outer convex parts 27, the inner concave parts 26 of the upper movable parts are matched with the outer convex parts 27 of the lower edge of the fixed upper cover, the upper movable parts and the lower movable parts are fixed through screws, the fixed upper cover is provided with radial limit protrusions 31 and rotation limit protrusions 32, and the upper movable parts are internally provided with matching parts 34 matched with the rotation limit protrusions 32 of the fixed upper cover. Fig. 7 is a sectional view of the movable upper cover and the fixed upper cover combined. As can be seen from the figure, the longitudinal, i.e. axial, movement range of the movable upper cover is limited by the bottom surface of the fixed upper cover and the positioning block 31, and can only be moved in a prescribed space. The wedge surface structure B21 in the movable upper cover is used for matching with the wedge surface structure A11 of the joint part and fixing the liquid treatment element 14.
Two positioning blocks 31 and 32, one for limiting the longitudinal movement range, i.e., axial displacement, of the movable upper cover and the other for limiting the rotation angle, i.e., rotational displacement, of the movable upper cover.
When assembling, the concave part 26 of the upper movable part of the movable upper cover 2 is matched with the outer part 27 of the fixed upper cover, as shown in fig. 5, the two upper movable parts 2A and 2B are buckled, then the lower movable part is matched with the upper movable part, the upper movable part and the lower movable part are provided with screw mounting holes 23, the upper movable part and the lower movable part can be fixed, the rotation limiting bulge 32 is positioned in the matching part 34, the movable upper cover 2 and the fixed cover 3 can not be separated and separated due to the wedge surface structure B21 on the lower movable part, and can only be movably connected, the fixed cover 3 is fixed on the liquid processing device through the mounting holes 23 by screws, at the moment, the movable upper cover 2 and the fixed upper cover 3 are connected on the liquid processing device together, and the liquid processing element 14 can be easily fixed on the fixed upper cover 3 through the connector 12 of the joint part and the wedge surface structures A on the two sides.
A liquid treatment system including a specially adapted structure as shown in fig. 8 includes a liquid treatment apparatus, a liquid treatment element, and a specially adapted structure connecting the two. The liquid treatment apparatus supplies a liquid to be treated to the liquid treatment element, and receives the treated liquid from the liquid treatment element. The liquid handling element is a consumable. The joint part 1 of the liquid treatment element can be fixed on the movable upper cover through the inclined wedge surface structure A, the connector 12 on the joint part can be fixed on the fixed upper cover 3 in a sealing way through the sealing ring 15, and the movable upper cover 2 is movably connected on the fixed upper cover 3. The fixed upper cover is provided with a passage receiver 22 and a communication port 25 for liquid flow, and can be communicated and matched with the connector 12 of the joint part on the liquid treatment element to form a complete liquid flow path.
Fig. 9 is a view showing an embodiment of the present application, in which a pure water consumable part is arranged laterally. In particular applications, are used as reverse osmosis membranes and purification columns. Taking reverse osmosis membrane as an example, fixing three receiver outlets on the upper cover with reverse osmosis membrane water inlets of the water purifier, discarding water gaps, and respectively connecting water producing gaps; the fixed upper cover is fastened on the water purifier by screws; the movable upper cover ring is fixed on the upper cover and can rotate. When the reverse osmosis membrane locking device is used, two indication marks are printed on the reverse osmosis membrane column of the liquid outlet element, three connectors of the reverse osmosis membrane column are aligned to the receiver of the fixed upper cover, the indication handle of the movable upper cover is aligned to the opening standard on the reverse osmosis membrane, after the reverse osmosis membrane column is pushed up to a certain depth, the movable upper cover is selected, the reverse osmosis membrane column can be easily pushed to a proper position through the action of the inclined wedge surface, and the indication handle points to the locking position.

Claims (4)

1. A particularly adapted structure for use in a liquid treatment system comprising a liquid treatment apparatus and a liquid treatment element, characterized in that: the liquid treatment element is fixed on the liquid treatment device through a special matching structure, the special matching structure comprises a movable upper cover and a fixed upper cover which are arranged on the liquid treatment device, and a joint part on the liquid treatment element, wherein the joint part is provided with a connector, the connector is provided with a sealing structure, the fixed upper cover is provided with a communication port which can be communicated with the liquid treatment device, the fixed upper cover is fixedly connected on the liquid treatment device, and the movable upper cover is movably connected on the fixed upper cover; the joint part on the liquid treatment element is circular, two or more inclined wedge surface structures A are arranged on the circular joint part, the joint part of the liquid treatment element is fixed on the fixed upper cover through the inclined wedge surface structures A, and two or three connectors are arranged above the joint part; two or three receivers matched with the connector are arranged on the fixed upper cover, the connector at the joint part of the liquid treatment element is connected with the receiver of the fixed upper cover, the connector is communicated with the receiver and the communication port, and a wedge surface structure B which can clamp and fix the wedge surface structure A and is matched with the wedge surface structure B is arranged in the movable upper cover; the movable upper cover comprises an upper movable part and a lower movable part, the upper movable part is divided into two half structures with the same appearance along a central shaft, the upper movable part is provided with an inner concave part, the lower edge of the fixed upper cover is provided with an outer convex part, the inner concave part of the upper movable part is matched with the outer convex part of the lower edge of the fixed upper cover, the upper movable part and the lower movable part are fixed through screws, the fixed upper cover is provided with a rotation limiting bulge and an axial limiting bulge, and the upper movable part is internally provided with a matching part matched with the rotation limiting bulge of the fixed upper cover.
2. A particularly adapted structure for use in a liquid handling system according to claim 1, wherein: the wedge surface structure A on the liquid treatment element and the wedge surface structure B in the movable upper cover are respectively provided with a matched bulge and a matched recess.
3. A particularly adapted structure for use in a liquid handling system according to claim 1, wherein: at least two sealing rings are arranged on the connector.
4. A special mating structure for use in a liquid handling system according to claim 1 or 2, wherein: the pitch of each connector is not equal.
CN201810212803.1A 2018-03-15 2018-03-15 Liquid treatment system comprising a specially adapted structure Active CN110270224B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810212803.1A CN110270224B (en) 2018-03-15 2018-03-15 Liquid treatment system comprising a specially adapted structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810212803.1A CN110270224B (en) 2018-03-15 2018-03-15 Liquid treatment system comprising a specially adapted structure

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CN110270224A CN110270224A (en) 2019-09-24
CN110270224B true CN110270224B (en) 2024-03-15

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US4735716A (en) * 1986-01-27 1988-04-05 Cuno Corporated Quick-change filter cartridge and head therefor
WO2000068151A2 (en) * 1999-05-06 2000-11-16 Innova Pure Water Inc. Personal water filter bottle system
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