CN208975326U

CN208975326U - It is a kind of to change the self-locking water purifier of core

Info

Publication number: CN208975326U
Application number: CN201821261079.3U
Authority: CN
Inventors: 朱泽春; 聂小江
Original assignee: Joyoung Co Ltd
Current assignee: Hangzhou Jiuchuang Home Appliances Co ltd
Priority date: 2018-08-06
Filing date: 2018-08-06
Publication date: 2019-06-14
Anticipated expiration: 2028-08-06

Abstract

The utility model, which provides, a kind of changes the self-locking water purifier of core, including element kit and filter core mounting base, element kit includes shell and the mounting head fixed with filter core mounting base, mounting head is equipped with connector, filter core mounting base includes mounting seat body, spool and gland, connector is fixed with seal spool, intake-outlet is respectively equipped on mounting seat body and spool, gland and mounting seat body are fixed spool clamping therebetween, rotation prevention portion and rotation stop auxiliary section are respectively equipped in mounting head and spool, so that the two is circumferentially fixed, spool is in the first station, spool and the intake-outlet of mounting seat body are with respect to position, spool is in second station, the intake-outlet sequence of spool and mounting seat body, element kit rotation band movable valve plug is converted in the first station and second station, avoid the superior and the subordinate element kit or storage of the dismounting when grade element kit Pressure in the structures such as bucket causes leak.Whole intake-outlets in filter core mounting base can not only be formed it is self-locking, but also operate it is convenient.

Description

It is a kind of to change the self-locking water purifier of core

Technical field

The self-locking water purifier of core is changed the utility model relates to a kind of, belongs to water-treatment technology field.

Background technique

With the raising that people require drinking water quality, water purification system is just progressing into the drinking-water system of every household In.Water purifier currently on the market needs to close at water source when replacing element kit, even if water source is closed, the filter core There are still hydraulic pressure in the previous stage or rear stage element kit of component, and the water at the intake-outlet of filter core mounting base will flow Out, water purifier is mounted in cabinet by most of user, and leak will will cause wooden cabinet dampness, is not only resulted in environment and is needed clearly It is clean to cause user inconvenient, in some instances it may even be possible to bring loss to user.In view of the above-mentioned problems, existing occur on the market with self-locking function The filter core mounting base of energy generally forms self-locking structure by spring and sealing element, by sealing element after element kit assembles in place Jack up, open filter core mounting base in intake-outlet, when element kit screw out when, sealing element under the elastic force of spring, block into Water outlet is to play the effect of self-locking sealing.But the position for installing self-locking structure need to weld and guarantee that the sealing at sealing can By property and compressive resistance, manufacture difficulty is big, and required precision is high.In addition, being limited by space, generally only in the water inlet of filter core mounting base Self-locking structure is set at mouthful, it is obvious that the water outlet of filter core mounting base is influenced also have leak by the back pressure of rear stage element kit Risk exists.

Utility model content

The technical issues of for above description, the utility model, which provides, a kind of changes the self-locking water purifier of core, including filter core Component and filter core mounting base, the element kit include shell and the mounting head positioned at one end of shell, the mounting head and filter The installation of core mounting base is fixed, and the mounting head is equipped with connector, which is characterized in that the filter core mounting base includes mounting base sheet Body, spool and gland, the connector are fixed with seal spool, are respectively equipped with intake-outlet on the mounting seat body and spool, The gland is fixed with mounting seat body, and the spool is rotatably clamped between gland and mounting seat body, the installation Head is equipped with rotation prevention portion, and the spool is equipped with rotation stop auxiliary section, the rotation prevention portion and rotation stop auxiliary section secure fit so that peace Dress head and spool formed it is circumferentially fixed, the spool have the first station and second station, in the first station, the spool Intake-outlet and the intake-outlet of mounting seat body are with respect to position, in second station, the intake-outlet and mounting base of the spool The intake-outlet sequence of ontology, the element kit rotation band movable valve plug are converted in the first station and second station.

Further, the spool is equipped with the sealing ring muscle for being coated on outside connector and sealing cooperation therewith, the rotation stop Matching part is located at connector periphery in sealing ring muscle periphery, the rotation prevention portion.

Further, the rotation prevention portion and rotation stop auxiliary section are the slot and inserted link of mutual plug fixing.

Further, the thickness of the inserted link front end is less than the thickness of rear end；Alternatively, the width of the slot front end is greater than The width of rear end.

Further, the outer of the spool has a sliding convex edge, and the center of the gland is equipped with to be passed through for mounting head The inside of through-hole, inner wall towards mounting seat body one end of the gland has clamping step, the clamping step and mounting base Sliding groove is formed on the bottom of ontology, and the sliding convex edge is slided in sliding groove.

Further, the bottom of the mounting seat body is equipped with multiple screw poles, and the gland is equipped with to be inserted for screw pole The counterbore entered, screw passes through counterbore and fixes with screw pole, and then gland is fixed in mounting seat body.

Further, there is installation base, the connector is located on the end wall of installation base, the peace in the mounting head The side wall for filling boss has mounting portion, and the inside of the gland is equipped with the installation auxiliary section screwed with mounting portion；Alternatively, the peace It is fixed with hanging seat on dress seat ontology or gland, there is installation base in the mounting head, the connector is located at installation base On end wall, the side wall of the installation base has mounting portion, and the inside of the hanging seat is equipped with the installation screwed with mounting portion and cooperates Portion.

Further, the top of the spool and the bottom of mounting seat body are respectively provided with mutually matched first mating surface With the second mating surface, the intake-outlet of the spool and mounting seat body is located in the first mating surface and the second mating surface.

Further, second mating surface is equipped with sealing mounting groove, and the sealing mounting groove is surrounded on intake-outlet Periphery, the sealing mounting groove is interior to be equipped with sealing element, and the sealing element and the first mating face seal cooperate；Alternatively, described first Mating surface and the second mating surface are equipped with mutually matched guide post and guide groove, in the guide post insertion guide groove and along Guide groove movement.

Further, the connector includes that the multiple of coaxial arrangement cross the mouth of a river, and the inside of the spool has to filter core group Part direction extends and multiple sealing ring muscle of coaxial arrangement, and the sealing ring muscle seals cooperation with the corresponding mouth of a river of crossing respectively, described The intake-outlet of spool is located in the enclosed region of adjacent seals ring muscle and communicates with the corresponding mouth of a river of crossing.

In the utility model, mounting head is equipped with rotation prevention portion, and spool is equipped with rotation stop auxiliary section, rotation prevention portion and rotation stop cooperation Portion's secure fit so that mounting head and spool formed it is circumferentially fixed so that in element kit disassembly process rotation to drive valve Core is converted in the first station and second station, to control the opening and closing of the intake-outlet in filter core mounting base, avoids dismounting when grade filter core Pressure in the structures such as the superior and the subordinate's element kit of component or water butt causes leak.It not only can be in filter core mounting base Whole intake-outlets formed it is reliable self-locking, and operate it is convenient.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawings and detailed description:

Fig. 1 be in the utility model element kit and filter core mounting base assembly after cross-sectional view；

Fig. 2 is the partial schematic diagram of element kit in the utility model；

Fig. 3 is the exploded view of filter core mounting base in the utility model；

Fig. 4 is the schematic diagram 1 of spool in the utility model；

Fig. 5 is the schematic diagram 2 of spool in the utility model.

Specific embodiment

In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen The feature in embodiment and embodiment please can be combined with each other.

Many details are explained in the following description in order to fully understand the utility model, still, this is practical Novel to be implemented using other than the one described here other modes, therefore, the protection scope of the utility model is simultaneously It is not limited by the specific embodiments disclosed below.

As Figure 1-Figure 5, a kind of to change the self-locking water purifier of core, including element kit 1 and filter core mounting base 2, filter core group Part 1 includes shell 11 and the mounting head 12 positioned at one end of shell 11, and mounting head 12 is equipped with connector 13, and connector 13 was equipped with After the mouth of a river 131, corresponding waterway structure and sealing structure, mounting head 12 and the installation of filter core mounting base 2 are fixed, connector 13 and filter core are pacified The sealing fit structure cooperation in seat 2 is filled, to be connected to corresponding water route and adjacent water route is isolated.Specifically, filter core mounting base 2 includes Mounting seat body 21, spool 22 and gland 23.Connector 13 and the sealing of spool 22 are fixed, and connector 13 is equipped with sealing side wall 132, close The sealing ring muscle 221 sealed on side wall 132 and spool 22, which seals, to be cooperated, correspondingly, the sealing in above-mentioned filter core mounting base 2 cooperates knot Structure is sealing ring muscle 221.Meanwhile sealing side wall 132 and isolating the mouth of a river 131, it should be noted that connecing in the present embodiment First 13 include that the multiple of coaxial arrangement cross the mouth of a river 131, and multiple sealing side walls 132 are coaxially disposed, and are formed between adjacent seals side wall The mouth of a river is crossed, also formed the mouth of a river in innermost sealing side wall.Wherein, according to mouth of a river quantity is crossed, element kit has multiple types Type, in general, the filter core of such as PP cotton filter element, active carbon filter core, ultra-filtration element, resin filter element, ceramic element type is with two A mouth of a river, such as reverse osmosis filter core, nanofiltration filter core tool crossed is there are three the mouth of a river is crossed, alternatively, also having four according to special designing demand A or four or more the mistake mouths of a river the element kit, then, the element kits that difference crosses mouth of a river quantity then have the close of different number Seal side wall.Correspondingly, the inside of spool 22 has the multiple sealing ring muscle 221 for extending to 1 direction of element kit and being coaxially disposed, Sealing ring muscle 221 cooperates respectively with corresponding sealing side wall 132 sealing to prevent from going here and there water between the mouth of a river 131.Spool 22 is equipped with Intake-outlet 222, wherein the intake-outlet 222 is located in the enclosed region of adjacent seals ring muscle 221 and crosses the mouth of a river 131 with corresponding It communicates.

It is noted that crossing the mouth of a river can also be different axis setting, for example, for PP cotton filter element, active carbon filter core, ultrafiltration There are two the element kits for crossing the mouth of a river for the tool such as filter core, resin filter element, ceramic element, and two can be arranged in mounting head side by side One is respectively set in each connector and crosses the mouth of a river for connector；For the tool such as reverse osmosis filter core, nanofiltration filter core, there are three the filters for crossing the mouth of a river Core assembly, can be arranged the connector of three connectors or three other arrangement modes side by side in mounting head, in each connector It is respectively set one and crosses the mouth of a river, it is of course also possible to which two connectors side by side are arranged, cross water for setting one in one of connector Mouthful, two coaxial arrangements of setting crosses the mouth of a river in another connector；For have there are four or four or more cross the mouth of a river filter core Component can also cross mouth of a river coaxial arrangement in one for multiple likewise, each mouth of a river of crossing can be arranged in a connector In connector.

It also is provided with intake-outlet 211 in mounting seat body 21, gland 23 and mounting seat body 21 are fixed, and then by spool 22 Rotatably it is clamped between gland 23 and mounting seat body 21, passes through the intake-outlet 211 and spool in mounting seat body 21 Intake-outlet 222 on 22 is overlapped or is staggered to open and close corresponding water route.Mounting head 12 is equipped with rotation prevention portion 14, sets on spool 22 There are rotation stop auxiliary section 223, rotation prevention portion 14 and 223 secure fit of rotation stop auxiliary section so that mounting head 12 and spool 22 are formed circumferentially admittedly It is fixed, avoid the two that the rotation in circumferential direction occurs.It should be noted that circumferential direction herein refers to the axis around element kit 1 The direction of line.

Spool 22 has the first station and second station, in the first station, the intake-outlet 222 and mounting base of spool 22 The intake-outlet 211 of ontology 21 is with respect to position, in second station, the intake-outlet 222 of spool 22 and mounting seat body 21 into 211 sequence of water outlet.The mounting head 12 of element kit 1 is inserted into filter when assembling element kit 1 by user or installation master worker In core mounting base 2, then by the circumferentially fixed of rotation prevention portion 14 and rotation stop auxiliary section 223, element kit 1 is turned with band movable valve plug 22 turn to the first station from second station, to connect the water route inside filter core mounting base 2；When dismantling element kit 1, turn After element kit 1 turns to second station from the first station with band movable valve plug 22, element kit 1 is extracted, simultaneously, it is ensured that filter core Water route inside mounting base 2, which disconnects, to be formed self-locking, is avoided in previous stage or rear stage element kit due to the element kit still There are hydraulic pressure, and flow out residual water from the intake-outlet of filter core mounting base, make troubles to user.Wherein, rotation prevention portion and Rotation stop auxiliary section can be one group, since two component is stressed member, it is contemplated that circumferential stress is equal in 22 rotation process of spool Even property avoids the dislocation of spool 22 from leading to sealing position seal failure, preferably, rotation prevention portion and rotation stop auxiliary section have two groups or More than two, in the present embodiment, rotation prevention portion 14 and rotation stop auxiliary section 223 have two groups and with shaft for symmetrical axial symmetry cloth It sets.Another aspect, element kit 1 itself can also have a self-locking function, realize element kit and filter core mounting base it is dual from Lock.In general, sealing element and spring return are set in the mouth of a river 131 in crossing for element kit 1, after the assembly in place of element kit 1, Sealing element is pushed by structure in filter core mounting base 2 to be opened the corresponding mouth of a river 131 excessively and makes in element kit 1 and filter core mounting base 2 Water route connection, element kit 1 dismantle after, sealing element by spring return effect and close accordingly cross the mouth of a river 131, avoid filtering Residual water outflow in core assembly 1.

In the present embodiment, rotation stop auxiliary section 223 is located at 221 periphery of sealing ring muscle, correspondingly, rotation prevention portion 14 is located at connector 13 Periphery, on the one hand, cooperate in place convenient for rotation prevention portion 14 and the inserting of rotation stop auxiliary section 223, meanwhile, it is certain in 22 rotating torque of spool Under the premise of, the rotation arm of force of rotation prevention portion 14 and rotation stop auxiliary section 223 is larger, then extruding stress is then smaller between the two, one Determine to improve durability in degree.It should be noted that multiple sealing ring muscle 221 in the present embodiment are coaxial arrangement, it is above-mentioned The position of rotation stop auxiliary section 223 refers to the periphery of sealing ring muscle 221 on the outermost side, if sealing ring muscle cloth in other forms It sets, the position of rotation stop auxiliary section is then clear.

Rotation prevention portion 14 and rotation stop auxiliary section 223 are the slot and inserted link of mutual plug fixing, and element kit 1 is packed into filter core peace After filling seat 2, inserted link is inserted into slot, and then is formed circumferentially fixed.In the scheme required for element kit installation direction, Preferably, it is slot that the rotation prevention portion on element kit, which can be side, and the other side is inserted link, correspondingly, rotation stop auxiliary section then one Side is inserted link, and the other side is slot, plays foolproof function, can be still installed in place after avoiding element kit from rotating 180 °.Separately On the one hand, the thickness of inserted link front end is less than the thickness of rear end, and/or, the width of slot front end is greater than the width of rear end, wherein One end is first inserted into during referring to inserting in front end, and above structure setting is inserted into filter core mounting base 2 convenient for element kit 1, even if inserting There are certain deviations for inserted link and slot during dress, still can smoothly be packed into.

In the present embodiment, the center of gland 23 is equipped with the through-hole 231 passed through for mounting head 12, since gland 23 presses spool 22, also, effect of the spool 22 by the hydraulic pressure to 1 direction of element kit, the intensity of gland 23 there are certain requirements, gland 23 It is annular in shape to ensure that preferable intensity.Certainly, gland may be separate structure, for example, gland includes in the more of crescent A fission part, can be against between adjacent fission part, it is possible to have certain interval.The outer of spool 22 has sliding convex edge 224, the inside of inner wall towards 21 one end of mounting seat body of gland 23 has clamping step 232, clamps step 232 and mounting base Sliding groove 233 is formed on the bottom of ontology 21, and sliding convex edge 224 is slided in sliding groove 233, ensure that spool 22 rotates continuous Property and smoothness, avoid the occurrence of stuck.

The bottom of mounting seat body 21 is equipped with multiple screw poles 212, and gland 23 is equipped with counterbore 234, and screw pole 212 is inserted into In counterbore 234, after gland 23 tentatively limit, and screw passes through counterbore 234 and fixes with screw pole 212, and then gland 23 is consolidated It is scheduled in mounting seat body 21.In general, screw number is 2 or more, and it is evenly arranged in the circumferential, it is equal is conducive to stress It is even.

In the present embodiment, filter core mounting base 2 further includes hanging seat 24, and hanging seat 24 is fixed in mounting seat body 21, mounting head There is installation base 121, connector 13 is located on the end wall of installation base 121, and the side wall of installation base 121 has mounting portion on 12 122, the inside of hanging seat 24 is equipped with the installation auxiliary section 241 screwed with mounting portion 122.Wherein, mounting portion 122 and installation auxiliary section 241 be convex rib structure circumferentially, and mounting portion 122 is slided in installation auxiliary section 241 towards 22 one end of spool, mounting portion 122 front end is equipped with the first guiding slope 123, and the front end of installation auxiliary section 241 is equipped with the cooperated with the first guiding slope 123 Two guiding slopes 242, the rear end of installation auxiliary section 241 are equipped with the bit-stopping structure 243 cooperated with the front end stop bit of mounting portion 122, As the feedback being installed in place.The bottom of mounting seat body 21 is equipped with mounting ring muscle 213, correspondingly, mounting ring muscle 213 is equipped with Screw hole 214, hanging seat 24 be equipped with screwing through hole 244, screw pass through screwing through hole 244 and with the screw on mounting ring muscle 213 Hole 214 is fixed.Hanging seat 24 is equipped with convex along 245 towards 21 one end of mounting seat body, and convex is along 245 and mounting ring muscle 213 Inner wall against certainly, convex is along can also be with the outer wall of mounting ring muscle against to avoid mounting seat body 21 and hanging seat 24 Dress is inclined.In addition, the screw pole 212 of 21 bottom of mounting seat body is located at 213 inside of mounting ring muscle.Other than above-mentioned mounting means, Hanging seat can also be fixed on gland, and respective screws mounting structure is respectively set on gland and hanging seat, be consolidated hanging seat by screw It is scheduled on gland.It should be pointed out that since when being full of water, weight is larger outer plus hydraulic pressure effect for element kit 1, when assembly, is made Power on hanging seat 24 is larger, and hanging seat 24 is fixed in mounting seat body 21, is conducive to that above-mentioned active force is avoided to act on Spool 22 and mounting seat body 21 is caused to loosen on gland 23.

The another embodiment fixed as element kit, element kit can also be fixed on gland, specifically, peace Filling has installation base on head, connector is located on the end wall of installation base, the side wall of installation base with mounting portion, gland it is interior Side is equipped with the installation auxiliary section screwed with mounting portion.Wherein, mounting portion and installation auxiliary section can use for reference above embodiment, herein It repeats no more.

In the present embodiment, the top of spool 22 and the bottom of mounting seat body 21 are respectively provided with mutually matched first cooperation Face 225 and the second mating surface 215, intake-outlet 222 and intake-outlet 211 are located at the first mating surface 225 and the second cooperation On face 215.First mating surface 225 and the second mating surface 215, which can be, to be abutted each other, it is possible to have certain interval, wherein Above-mentioned mating surface can be using the rotary shaft of spool 22 as the cambered surface of rotating of rotary shaft, be also possible to plane.

Second mating surface 215 is equipped with sealing mounting groove 216, and sealing mounting groove 216 is surrounded on 211 periphery of intake-outlet, It seals and is equipped with sealing ring in mounting groove 216, sealing ring and the sealing of the first mating surface 225 cooperate.Since the water source of leak is from peace 31 direction of seat ontology is filled, sealing ring need to be set to outside the intake-outlet 211 in the second mating surface 215, in 22 reciprocating rotary of spool In the process, sealing ring may remain in sealing mounting groove 216.In the present embodiment, sealing ring is positioned at intake-outlet outer Cyclic annular silica gel sealing ring, it is contemplated that easy to assembly, sealing ring can also be the silica gel sealing pad of position opposite with intake-outlet through-hole, After spool and mounting seat body are installed in place, silica gel sealing pad is in compressive state, and then forms sealing.

In order to further increase sealing reliability, sealing ring, sealing ring and mounting base can also be arranged on spool side wall The inner wall of ontology seals cooperation.Even if sealing element position seals fail, sealing ring can still play sealing function, water is avoided to reveal To outside.It is close sealing ring mounting groove to be arranged on the side wall of spool, avoids in assembling process convenient for sealing ring location and installation Seal displacement.

First mating surface 225 is equipped with guide post 226, and the second mating surface 215 is equipped with guide groove 217, and guide post 226 is inserted Entering in guide groove 217, element kit band movable valve plug 22 rotates and then moves guide post 226 along guide groove 217, so that this Process has fixed circumferential stroke.

Certainly, those skilled in the art be appreciated that the above content be only the preferred embodiment of the utility model and , be not used to limit the scope of the utility model, i.e., it is all according to equivalent changes and modifications made by the utility model, be all The utility model claims range is covered, and is no longer illustrated one by one here.

Claims

1. a kind of change the self-locking water purifier of core, including element kit and filter core mounting base, the element kit include shell and position Mounting head in one end of shell, the mounting head and the installation of filter core mounting base are fixed, and the mounting head is equipped with connector, special Sign is that the filter core mounting base includes mounting seat body, spool and gland, and the connector is fixed with seal spool, the peace It is respectively equipped with intake-outlet on dress seat ontology and spool, the gland is fixed with mounting seat body, and the spool rotatably presss from both sides It holds between gland and mounting seat body, the mounting head is equipped with rotation prevention portion, and the spool is equipped with rotation stop auxiliary section, described Rotation prevention portion and rotation stop auxiliary section secure fit so that mounting head and spool formed it is circumferentially fixed, the spool have the first station and Second station, in the first station, the intake-outlet of the spool and the intake-outlet of mounting seat body are with respect to position, in the second work When position, the intake-outlet of the spool and the intake-outlet sequence of mounting seat body, the element kit rotation band movable valve plug It is converted in the first station and second station.

2. according to claim 1 change the self-locking water purifier of core, which is characterized in that the spool is equipped with and is coated on connector Sealing ring muscle that is outer and sealing cooperation therewith, the rotation stop matching part are located at connector in sealing ring muscle periphery, the rotation prevention portion Periphery.

3. according to claim 1 change the self-locking water purifier of core, which is characterized in that the rotation prevention portion and rotation stop auxiliary section are The slot and inserted link of mutual plug fixing.

4. according to claim 3 change the self-locking water purifier of core, which is characterized in that after the thickness of the inserted link front end is less than The thickness at end；Alternatively, the width of the slot front end is greater than the width of rear end.

5. according to claim 1 change the self-locking water purifier of core, which is characterized in that the outer of the spool has sliding convex Edge, the center of the gland are equipped with the through-hole passed through for mounting head, and the inner wall of the gland is towards in mounting seat body one end Side has clamping step, and the bottom formation sliding groove of the clamping step and mounting seat body, the sliding convex edge is in sliding groove Interior sliding.

6. according to claim 1 change the self-locking water purifier of core, which is characterized in that the bottom of the mounting seat body is equipped with Multiple screw poles, the gland are equipped with the counterbore being inserted into for screw pole, and screw passes through counterbore and fixes with screw pole, and then will Gland is fixed in mounting seat body.

7. according to claim 1 change the self-locking water purifier of core, which is characterized in that have installation convex in the mounting head Platform, the connector are located on the end wall of installation base, and the side wall of the installation base has mounting portion, set on the inside of the gland There is the installation auxiliary section screwed with mounting portion；Alternatively, hanging seat is fixed on the mounting seat body or gland, the mounting head Upper to have installation base, the connector is located on the end wall of installation base, and the side wall of the installation base has mounting portion, described The inside of hanging seat is equipped with the installation auxiliary section screwed with mounting portion.

8. according to claim 1-7 change the self-locking water purifier of core, which is characterized in that the top of the spool and The bottom of mounting seat body is respectively provided with mutually matched first mating surface and the second mating surface, the spool and mounting seat body Intake-outlet be located in the first mating surface and the second mating surface.

9. according to claim 8 change the self-locking water purifier of core, which is characterized in that second mating surface is equipped with sealing Mounting groove, the sealing mounting groove are surrounded on intake-outlet periphery, are equipped with sealing element, the sealing element in the sealing mounting groove Cooperate with the first mating face seal；Alternatively, first mating surface and the second mating surface be equipped with mutually matched guide post and Guide groove, the guide post insertion guide groove is interior and moves along guide groove.

10. according to claim 1-7 change the self-locking water purifier of core, which is characterized in that the connector includes same The multiple of axis setting cross the mouth of a river, and the inside of the spool has the multiple sealing rings for extending to element kit direction and being coaxially disposed Muscle, the sealing ring muscle cross mouth of a river sealing cooperation with corresponding respectively, and the intake-outlet of the spool is located at adjacent seals ring muscle institute It encloses in region and is communicated with the corresponding mouth of a river of crossing.