CN114351825A - Shunting device with flexible closure member - Google Patents

Abstract

The invention provides a flow dividing device with a flexible cut-off piece, belonging to the technical field of drainage, and the device comprises: the flexible cut-off piece is arranged in a water passage in the well body, the flexible cut-off piece is provided with a rubber inner layer and a rubber outer layer, a cavity is formed by the rubber inner layer and the rubber outer layer, two end parts of the cavity are respectively embedded with a support ring, a support piece is embedded in the rubber outer layer, and the rubber inner layer can flexibly expand relative to the rubber outer layer; when the flexible cut-off piece is applied to a well body, the flexible cut-off piece has the characteristics of high construction efficiency and low cost; in addition, the supporting piece and the supporting ring which are used for blocking the rubber outer layer from elastically deforming are arranged in the rubber outer layer, so that the rubber outer layer is always kept in a state of being attached to the inner wall of the water through opening in the process that the rubber inner layer expands relative to the rubber outer layer, and residues in sewage are effectively prevented from being accumulated between the rubber outer layer and the inner wall of the water through opening and cannot be discharged.

Description

Shunting device with flexible closure member

Technical Field

The invention belongs to the technical field of drainage, and particularly relates to a flow dividing device with a flexible cut-off piece.

Background

The intercepting device is an intercepting facility applied to a water outlet or a discharge port of a flow dividing well, and generally comprises an outer shell and a rubber sleeve, wherein a pressurizing cavity is formed between the outer shell and the rubber sleeve, the end part of the rubber sleeve is in sealing connection with the end part of the outer shell through a flange plate, when pressurized gas is filled into the pressurizing cavity, the rubber sleeve is deformed inwards relatively, the inner wall of the rubber sleeve is attached, and a circulation channel is stopped.

However, the structure of the outer shell in the prior art generally adopts a rigid structure, when a pressurizing cavity is formed between the outer shell and the rubber sleeve, the sealing performance is not good, and the rigid outer shell is inconvenient to operate when being installed in the shunt well due to the large size and the large weight, the construction efficiency is low, the cost is high, and the later maintenance is inconvenient.

Disclosure of Invention

The invention aims to solve the technical problems that how to provide a novel flow dividing device with a flexible cut-off piece is provided, so that the technical problems that the flow dividing device in the prior art is poor in sealing performance, high in cost, inconvenient in later maintenance and low in construction efficiency when being applied to a flow dividing well are solved.

In order to solve the above technical problem, the present invention provides a flow dividing device having a flexible cut-off member, the device comprising: the well body is provided with at least one water through opening; the flexible cut-off piece is arranged in the water through hole; the flexible cut-off piece is provided with a rubber inner layer and a rubber outer layer, a cavity of a sealing structure is formed by the rubber inner layer and the rubber outer layer, and the rubber inner layer surrounds to form a circulation channel for water to circulate at the water through opening; the flexible cut-off piece is characterized in that two end parts of the flexible cut-off piece are respectively embedded with a supporting ring, a supporting piece is embedded in the rubber outer layer, the rubber inner layer can be flexibly expanded relative to the rubber outer layer to gradually close the flow channel, or the rubber inner layer can be flexibly contracted relative to the rubber outer layer to gradually open the flow channel, the supporting piece and the supporting ring are used for limiting the deformation of the rubber outer layer in the expansion or contraction process of the rubber inner layer, and at least one inlet and outlet for filling or releasing a pressure medium is formed in the cavity.

Optionally, the method further includes: a gland; when the flexible cut-off piece is arranged in the water through hole, the gland is fixed on one end part of the flexible cut-off piece, which is close to the inner space of the well body, and the gland is fixed on the inner wall of the well body through a fixing piece.

Optionally, the method further includes: two fixing pieces; when the flexible cut-off piece is arranged in the water through opening, each fixing ring is correspondingly fixed on one end part of the flexible cut-off piece so as to fix the flexible cut-off piece and the water through opening.

Optionally, two end portions of the flexible cut-off member are respectively a connecting end and a tail end, the connecting end is provided with a connecting portion, and the gland is fixed on the connecting portion; the supporting piece comprises a plurality of supporting rods, the supporting rods are embedded in the rubber outer layer, one end of each supporting rod is abutted to the supporting ring on the tail end, and the other end of each supporting rod is abutted to the supporting ring on the connecting end.

Optionally, the chamber has three pressurizing cavities to divide the inner cavity of the chamber into three punching parts, and the inner rubber layer of any one of the pressurizing cavities can flexibly expand or contract relative to the corresponding outer rubber layer; each pressurizing cavity is provided with one inlet and one outlet; the number of the supporting rods is three, and each supporting rod is distributed in the middle of one corresponding pressurizing cavity.

Optionally, the inlet and the outlet are arranged on the connecting part and penetrate through the connecting end; the inlet and the outlet are positioned between the rubber inner layer and the rubber outer layer and are distributed in the middle of the corresponding pressurizing cavity.

Optionally, the middle part of the inner surface of the rubber inner layer is provided with protruding structures in a circumferentially distributed manner, and the protruding structures are used for being in contact with each other in the expansion process of the rubber inner layer to close the flow channel.

Optionally, the apparatus further comprises: with the air cock that exit quantity is the same, each the air cock includes: the air outlet end penetrates through the inlet and the outlet and is communicated with the cavity, and the air inlet end is arranged outside the cavity.

Optionally, the air cock still includes: the sealing end and the air outlet end are arranged in the axial direction of the air faucet and are arranged outside the cavity, the air inlet end is arranged on the side wall of the air faucet, and the air inlet direction of the air inlet end is perpendicular to the axial direction of the air faucet; the sealing cap is detachably connected with the sealing end.

Optionally, the apparatus further comprises: one end of the inflation and deflation component penetrates through the inlet and the outlet to be communicated with the cavity, and the other end of the inflation and deflation component is externally connected with an air compressor to inflate or deflate the cavity; the inflation and deflation assembly comprises: a header, the header comprising: the gas collecting outlets and the gas collecting inlets are the same in number as the gas nozzles, and each gas collecting outlet is correspondingly connected with one gas inlet end; and one end of the breather pipe is connected with the gas collection inlet, and the other end of the breather pipe is externally connected with the air compressor.

Optionally, a notch structure for preventing the air faucet from rotating is arranged at a connecting part of the air faucet and the inlet and outlet; the notch structure includes: a first square notch is formed in the side wall of the air faucet; a second square notch arranged at the inner side of the inlet and the outlet; and the first square notch and the second square notch are clamped.

Optionally, the method further includes: a plurality of connecting buckles; when the inflation and deflation assembly needs to be fixed on an external fixed surface, the connecting buckle is sleeved on the gas collecting pipe and is fixedly connected with the external fixed surface.

Has the advantages that:

the invention provides a flow dividing device with a flexible cut-off piece, which is characterized in that the flexible cut-off piece is arranged in a water passage in a well body, a rubber inner layer and a rubber outer layer are arranged on the flexible cut-off piece, and a sealed cavity is directly formed by the rubber inner layer and the rubber outer layer so as to replace a pressurizing cavity formed by a rigid outer shell and the outer wall of a rubber sleeve in the prior art; in addition, the supporting piece and the supporting ring which are used for blocking the rubber outer layer from elastically deforming are arranged in the rubber outer layer, so that the rubber outer layer is always kept in a state of being attached to the inner wall of the water through opening in the process that the rubber inner layer expands relative to the rubber outer layer, and residues in sewage are effectively prevented from being accumulated between the rubber outer layer and the inner wall of the water through opening and cannot be discharged.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a flexible closure according to an embodiment of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a cross-sectional view B-B of FIG. 3;

fig. 5 is a first schematic structural view of a flow distribution device with a flexible closure according to an embodiment of the present invention;

FIG. 6 is a top view of FIG. 5;

fig. 7 is a second schematic structural view of a flow distribution device with a flexible closure according to an embodiment of the present invention;

fig. 8 is a top view of fig. 7.

Reference numerals:

an inner rubber layer-1;

a rubber outer layer-2 and a support rod-21;

chamber-3, connecting end-31, connecting part-311, tail end-32, flange ring-33, tail ring-34 and inlet-outlet-35;

a flow-through channel-4;

an air charging and discharging component-5, an air nozzle-51, a gas collecting pipe-52 and a vent pipe-53; gap structure-54; an air inlet end-511, an air outlet end-512, a sealing end-513, a sealing cap-514, an air collection outlet-521, an air collection inlet-522 and a connecting buckle-523;

a flexible closure member-6;

well body-7, water through-opening-71, gland-72 and fixing piece 73.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present specification are within the scope of the present invention. Meanwhile, in the embodiments of the present description, when an element is referred to as being "fixed to" another element, it may be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical", "horizontal", "left", "right" and the like used in the embodiments of the present specification are for illustrative purposes only and are not intended to limit the present invention.

Example 1

Referring to fig. 1-8, the embodiments of the present disclosure provide a flow divider with a flexible closure member, which includes a well body 7 and a flexible closure member 6. The well body 7 is provided with a water through opening 71, the flexible cut-off member is arranged in the water through opening in the well body, and the flexible cut-off member is provided with a rubber inner layer and a rubber outer layer, and a cavity with a sealing structure is directly formed by the rubber inner layer and the rubber outer layer, so that a pressurizing cavity is formed by a rigid outer shell and the outer wall of a rubber sleeve in the prior art, and the well body has the advantages of high construction efficiency and low cost when being applied to the well body, as the cavity is formed inside the cut-off member when the cavity is directly formed by the rubber inner layer and the rubber outer layer, the sealing performance is better, and the lifting weight of the rubber outer layer of the flexible cut-off member is lighter than that of the rigid outer shell; in addition, the supporting piece and the supporting ring which are used for blocking the rubber outer layer from elastically deforming are arranged in the rubber outer layer, so that the rubber outer layer is always kept in a state of being attached to the inner wall of the water through opening in the process that the rubber inner layer expands relative to the rubber outer layer, and residues in sewage are effectively prevented from being accumulated between the rubber outer layer and the inner wall of the water through opening and cannot be discharged.

In detail, referring to fig. 1-4, the flexible cut-off member 6 has an inner rubber layer 1 and an outer rubber layer 2, and a chamber 3 of a sealing structure is formed by the inner rubber layer 1 and the outer rubber layer 2, and the inner rubber layer 1 surrounds to form a flow channel 4; two ends of the chamber 3 are respectively provided with a support ring, a support member is arranged inside the rubber outer layer 2, the rubber inner layer 1 can flexibly expand relative to the rubber outer layer 2 to gradually close the flow channel 4, or the rubber inner layer 1 can flexibly contract relative to the rubber outer layer 2 to gradually open the flow channel 4; at least one port 35 is formed in the chamber.

Specifically, the rubber inner layer 1 and the rubber outer layer 2 in the flexible cut-off member can be both made of rubber materials, so as to achieve the dual purposes that the rubber outer layer 2 is light in weight and the rubber inner layer 1 is easy to generate elastic deformation, a cavity 3 with a sealed structure is directly formed between the rubber inner layer 1 and the rubber outer layer 2, at least one inlet and outlet 35 for inflation or deflation is arranged on the cavity 3, so that the cavity 3 is inflated or deflated through the inlet and outlet 35, and the flow channel 4 is directly formed by surrounding the rubber inner layer 1, so that when the flexible cut-off member provided by the embodiment of the specification is applied to a water outlet and needs to be cut off, gas is filled into the cavity 3 through the inlet and outlet 35, at the moment, the rubber inner layer 1 starts to expand under the action of air pressure to gradually close the flow channel 4, and when the water outlet needs to drain water, the air is discharged to the outside through the inlet and outlet 35, and at this time, the rubber inner layer 1 starts to contract to gradually open the flow channel 4.

It should be noted that, in the actual use process, the rubber outer layer 2 of the flexible cut-off member is required to be always attached to the inner wall of the water through opening 71, so as to avoid that the rubber outer layer 2 is also elastically deformed during the inflation and expansion process of the rubber inner layer 1, in this specification embodiment, a support member is further disposed inside the rubber outer layer 2 to support the whole contour of the rubber outer layer 2, the support member may include a plurality of support rods 21, each of the plurality of support rods 21 is embedded inside the rubber outer layer 2 at equal intervals, one end of each of the plurality of support rods 21 abuts against the tail end 32, and the other end abuts against the connecting end 31. Meanwhile, two end parts of the chamber 3 are respectively provided with a support ring, so that the rubber outer layer 2 is further prevented from generating a gap with the inner wall of the water through opening due to elastic deformation in the inflating process, and accumulated residues cannot be discharged.

In some embodiments, the two ends of the chamber 3 are a connection end 31 and a tail end 32, respectively; the support ring arranged on the connecting end 31 is a flange ring 33, the flange ring 33 is embedded in the connecting end 31, and a connecting part 311 is arranged on the connecting end 31; the support ring disposed at the aft end 32 is a tail ring 34, the tail ring 34 being embedded within the aft end 32.

It will be understood that in the present embodiment, in order to support the rubber outer layer 2 by the flange ring 33 and the tail ring 34 to prevent it from elastic deformation to the maximum extent and to ensure the sealing performance of the chamber 3, the flange ring 33 and the tail ring 34 are embedded directly in the two ends of the chamber 3 in an embedded manner as a preferred embodiment. Meanwhile, in the actual installation process, a flange may be connected to the connection portion 311, and the flexible cut-off member is fixed to an external support surface (e.g., a wall surface) through the flange, so as to install and fix the entire flexible cut-off member.

In some embodiments, the chamber 3 has three inflation cavities, and the three inflation cavities are distributed two by two and adjacent to divide the inner cavity of the chamber 3 into three independent cavities, and the inner rubber layer 1 of any one inflation cavity can flexibly expand or contract independently relative to the corresponding outer rubber layer 2; each of the pressurizing chambers is provided with one of the inlet and outlet ports 35. The inlet and outlet 35 is arranged on the flange ring 33 and is positioned between the rubber inner layer 1 and the rubber outer layer 2.

Specifically, the chamber 3 is a chamber for inflating inwards to expand the chamber and then gradually close the flow channel 4, in order to realize rapid inflation, rapid expansion and then rapid closing of the flow channel 4 of the chamber 3, the chamber 3 in the embodiment of the present specification has three inflation chambers with equal volume, the three inflation chambers are distributed adjacent to each other two by two to divide the internal chamber of the chamber 3 into three inflation portions, and each inflation chamber is provided with an inlet and outlet 35, so that when inflation is needed, the three chambers are inflated synchronously through the corresponding three inlet and outlet 35, and then the respective rubber inner layers 1 of the three inflation chambers are synchronously and flexibly expanded relative to the corresponding rubber outer layers 2, so as to realize rapid closing of the flow channel 4. Similarly, when the flow channel 4 needs to be communicated, the three pressurizing chambers are deflated synchronously through the corresponding three inlets and outlets 35, so as to rapidly open the flow channel 4.

Of course, it can be understood by those skilled in the art that the chamber 3 has three equal-volume pressurizing cavities, which is only one way for dividing the chamber, and may be two equal-volume pressurizing cavities, four equal-volume pressurizing cavities, five equal-volume pressurizing cavities, or more, and the embodiment of this specification is not limited thereto, and when the number of the pressurizing cavities is changed, the number of the corresponding inlets and outlets 35 may also be changed simultaneously. That is, if the opening or closing speed of the flow channel 4 can be controlled, the corresponding change of the number of the pressurizing chambers and the corresponding change of the number of the inlet/outlet 35 are applicable to the present specification and are within the protection scope of the present invention.

Meanwhile, the number of the support rods in the embodiment may be three, and each support rod is distributed at the middle part of a corresponding one of the pressurizing cavities; in addition, the inlet and the outlet are arranged on the connecting part and penetrate through the connecting end; and the inlet and the outlet are positioned between the inner rubber layer and the outer rubber layer and are distributed at the middle part of the corresponding one of the pressurizing cavities. It can be understood that when the supporting rods are distributed in the middle of the corresponding pressurizing cavity, the rubber outer layer of the pressurizing cavity can be supported by the maximum force in the expansion process of the pressurizing cavity, so that the outward tension of deformation of the rubber outer layer is limited. The inlet and the outlet are distributed at the middle part of one corresponding pressurizing cavity, and the air flow can be uniformly and quickly diffused to the whole pressurizing cavity when the pressurizing is carried out through the inlet and the outlet.

Furthermore, the middle part of the inner surface of the rubber inner layer is provided with protruding structures which are used for being mutually contacted in the expansion process of the rubber inner layer so as to close the flow channel in a circumferential distribution mode. It can be understood that, in the expansion process of the rubber inner layer, the inner surface of the rubber inner layer gradually expands and gathers together, then the flow surface of the flow channel gradually reduces, and the inner surface of the rubber inner layer is provided with the protruding structures which are distributed in the circumferential direction, so that after the inner surface expands and gathers together, the rubber inner layer further forms a sealing structure through mutual contact and abutting of the protruding structures, and further the flow channel is completely closed.

In some embodiments, the flexible closure further comprises: and one end of the inflation and deflation component 5 penetrates through the inlet and outlet 35 to be communicated with the cavity 3, and the other end of the inflation and deflation component 5 is externally connected with an air compressor to inflate or deflate the cavity 3. As for the inflation and deflation assembly 5, it may specifically include: the same number of air nozzles 51, gas collecting pipes 52 and air pipes as the inlet and outlet 35. Each of the air nozzles 51 includes: an air inlet end 511 and an air outlet end 512, wherein the air outlet end 512 passes through the inlet and outlet 35 to communicate with the chamber 3; the header 52 includes: the number of the gas collecting outlets 521 and the number of the gas collecting inlets 522 are the same as that of the gas nozzles 51, and each gas collecting outlet 521 is correspondingly connected with one gas inlet end 511; one end of the vent pipe is connected with the gas collection inlet 522, and the other end of the vent pipe is externally connected with the air compressor.

Specifically, the inflation and deflation assembly 5 is an assembly for inflating or deflating the chamber 3 through the inlet/outlet 35, and is communicated with the chamber 3 through the outlet end 512 of the air nozzle 51 passing through the inlet/outlet 35, and since the inlet/outlet 35 is opened on the flange ring 33 and is located between the rubber inner layer 1 and the rubber outer layer 2, the outlet end 512 extending into the chamber 3 is just communicated with the inner space of the chamber 3, so as to realize rapid inflation and deflation actions. As one implementation manner of the embodiments of the present disclosure, the number of the pressurizing cavities in the chamber 3 is three, that is, the number of the inlet and outlet 35 is three, the number of the corresponding air nozzles 51 is also three, the air inlet end 511 of each air nozzle 51 is collected by the air collecting pipe 52, and is externally connected to the air compressor through the air vent pipe after being collected, so as to implement the air charging and discharging operation of the chamber 3. It can be understood that, for the air compressor, an inflation valve for implementing inflation action and a deflation valve for implementing deflation action are arranged inside the air compressor, and those skilled in the art can understand that the conventional pipeline design corresponding to the actual inflation and deflation action requirement is required, and details of this embodiment are not described herein.

In some embodiments, the air cap 51 further includes: a sealing end 513 and a sealing cap 514. The sealing end and the air outlet end are arranged in the axial direction of the air faucet, the air inlet end is arranged on the side wall of the air faucet, and the air inlet direction of the air inlet end is perpendicular to the axial direction of the air faucet; the sealing cap is removably coupled (e.g., threadably coupled) to the sealing end. A notch structure 51 for preventing the air faucet 51 from rotating is provided at a connection portion of the air faucet 51 and the inlet/outlet 35. The notch structure 54 includes: a first square notch is formed in the side wall of the air faucet; a second square notch arranged at the inner side of the inlet and the outlet; and the first square notch and the second square notch are clamped.

Specifically, the air faucet 51 is inserted into the chamber 3 through the air outlet end 512 thereof during the actual operation process, and is communicated with the gas collecting pipe 52 through the air inlet end 511, and in order to ensure the sealing performance of the air faucet 51 during the inflation process, a sealing end 513 is provided on the air faucet 51 in the axial direction opposite to the direction in which the air outlet end is provided, and is detachably connected with the sealing end 513 through a sealing cap 514, thereby further sealing the air faucet 51 during the inflation process. Meanwhile, in order to prevent the air faucet 51 from rotating relative to the flange ring in the operation process, as an anti-slip implementation manner, a notch structure 51 for preventing the air faucet 51 from rotating is arranged at the connecting part of the air faucet 51 and the inlet/outlet 35, and the notch structure can be a first square notch arranged on the annular side wall of the air faucet and a second square notch arranged on the annular inner side of the inlet/outlet; the first square notch and the second square notch are clamped, so that the rotation prevention function between the first square notch and the second square notch is realized.

In some embodiments, the flexible closure further comprises: a number of connector links 523 (e.g., 2 connector links); just so make and fill when gassing subassembly is fixed in external fixed surface (for example pipeline wall etc.) will fill, establish on the discharge tube through connector link 523 cover to can realize through bolt or screw with external fixed surface fixed connection, accomplish the installation of flexible piece that dams then.

Further, with continuing reference to fig. 5-8, in the present embodiment, when the flexible cut-off member 6 is installed in the well body 7, a pressing cover 72 is disposed on the connecting portion of the connecting end of the flexible cut-off member as shown in fig. 5-6, and the pressing cover 72 is pressed against the connecting portion, and is fixed on the inner wall of the well body by means of a fixed connection such as a screw or a bolt, which is applicable to the drainage port 72 with a smaller diameter of the pipe. Of course, as another connection method, it can also be that after the flexible cut-off member extends into the water outlet 72, as shown in fig. 7-8, a fixing member 73 (e.g., a fixing steel ring) is respectively and correspondingly disposed on the supporting end and the tail end of the flexible cut-off member 6, and the flexible cut-off member 6 is fixed on the inner wall of the water outlet 71 by the fixing steel ring, which is applicable to a water outlet with a larger pipe diameter. Those skilled in the art can understand that the above two installation schemes for the flexible cut-off member 6 are only two operation modes of the flexible cut-off member, and are not limited, in a specific operation environment, a simple modification and a simple replacement are made for a corresponding structural part according to actual operation requirements, which can be understood as an equivalent modification of the embodiment of the present specification, and should not be understood as a scheme after the equivalent modification is not the flexible cut-off member provided in the present application, which will be clarified.

In summary, the shunt device with the flexible cut-off member provided by the invention has the advantages that the flexible cut-off member is arranged in the water passage port in the well body, the flexible cut-off member is provided with the rubber inner layer and the rubber outer layer, and the rubber inner layer and the rubber outer layer directly form the cavity with the sealing structure, so that the pressure charging cavity formed by the rigid outer shell and the outer wall of the rubber sleeve in the prior art is replaced; in addition, the supporting piece and the supporting ring which are used for blocking the rubber outer layer from elastically deforming are arranged in the rubber outer layer, so that the rubber outer layer is always kept in a state of being attached to the inner wall of the water through opening in the process that the rubber inner layer expands relative to the rubber outer layer, and residues in sewage are effectively prevented from being accumulated between the rubber outer layer and the inner wall of the water through opening and cannot be discharged.

Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (12)

1. A flow divider arrangement having a flexible closure, said arrangement comprising:

the well body is provided with at least one water through opening;

the flexible cut-off piece is arranged in the water through hole;

the flexible cut-off piece is provided with a rubber inner layer and a rubber outer layer, a cavity of a sealing structure is formed by the rubber inner layer and the rubber outer layer, and the rubber inner layer surrounds to form a circulation channel for water to circulate at the water through opening; the flexible cut-off piece is characterized in that two end parts of the flexible cut-off piece are respectively embedded with a supporting ring, a supporting piece is embedded in the rubber outer layer, the rubber inner layer can be flexibly expanded relative to the rubber outer layer to gradually close the flow channel, or the rubber inner layer can be flexibly contracted relative to the rubber outer layer to gradually open the flow channel, the supporting piece and the supporting ring are used for limiting the deformation of the rubber outer layer in the expansion or contraction process of the rubber inner layer, and at least one inlet and outlet for filling or releasing a pressure medium is formed in the cavity.

2. The flow divider apparatus having a flexible closure according to claim 1, further comprising:

a gland;

when the flexible cut-off piece is arranged in the water through hole, the gland is fixed on one end part of the flexible cut-off piece, which is close to the inner space of the well body, and the gland is fixed on the inner wall of the well body through a fixing piece.

3. The flow divider apparatus having a flexible closure according to claim 1, further comprising:

two fixing pieces;

when the flexible cut-off piece is arranged in the water through opening, each fixing ring is correspondingly fixed on one end part of the flexible cut-off piece so as to fix the flexible cut-off piece and the water through opening.

4. A flow divider assembly having a flexible closure according to claim 2, wherein:

the two end parts of the flexible cut-off piece are respectively a connecting end and a tail end, the connecting end is provided with a connecting part, and the gland is fixed on the connecting part;

the supporting piece comprises a plurality of supporting rods, the supporting rods are embedded in the rubber outer layer, one end of each supporting rod is abutted to the supporting ring on the tail end, and the other end of each supporting rod is abutted to the supporting ring on the connecting end.

5. The flow divider apparatus of claim 4, wherein:

the chamber is provided with three pressurizing cavities so as to divide the inner chamber of the chamber into three punching parts, and the rubber inner layer of any one pressurizing cavity can flexibly expand or contract relative to the corresponding rubber outer layer;

each pressurizing cavity is provided with one inlet and one outlet;

the number of the supporting rods is three, and each supporting rod is distributed in the middle of one corresponding pressurizing cavity.

6. The flow divider apparatus of claim 5, wherein:

the inlet and the outlet are arranged on the connecting part and penetrate through the connecting end;

the inlet and the outlet are positioned between the rubber inner layer and the rubber outer layer and are distributed in the middle of the corresponding pressurizing cavity.

7. A flow divider device according to any of claims 1 to 6 having a flexible closure, wherein:

the middle part of the inner surface of the rubber inner layer is provided with convex structures which are used for being mutually contacted in the expansion process of the rubber inner layer so as to close the flow channel in a circumferential distribution mode.

8. A flow divider device having a flexible closure according to any of claims 1-6, wherein said device further comprises:

with the air cock that exit quantity is the same, each the air cock includes: the air outlet end penetrates through the inlet and the outlet and is communicated with the cavity, and the air inlet end is arranged outside the cavity.

9. The manifold having a flexible closure according to claim 8, wherein said nozzle further comprises:

the sealing end and the air outlet end are arranged in the axial direction of the air faucet and are arranged outside the cavity, the air inlet end is arranged on the side wall of the air faucet, and the air inlet direction of the air inlet end is perpendicular to the axial direction of the air faucet;

the sealing cap is detachably connected with the sealing end.

10. The flow divider apparatus having a flexible closure of claim 9, further comprising:

one end of the inflation and deflation component penetrates through the inlet and the outlet to be communicated with the cavity, and the other end of the inflation and deflation component is externally connected with an air compressor to inflate or deflate the cavity;

the inflation and deflation assembly comprises:

a header, the header comprising: the gas collecting outlets and the gas collecting inlets are the same in number as the gas nozzles, and each gas collecting outlet is correspondingly connected with one gas inlet end;

and one end of the breather pipe is connected with the gas collection inlet, and the other end of the breather pipe is externally connected with the air compressor.

11. The flow divider device with a flexible closure of claim 8,

a notch structure for preventing the air faucet from rotating is arranged at the connecting part of the air faucet and the inlet and the outlet;

the notch structure includes:

a first square notch is formed in the side wall of the air faucet;

a second square notch arranged at the inner side of the inlet and the outlet;

and the first square notch and the second square notch are clamped.

12. The flow divider apparatus having a flexible closure of claim 10, further comprising:

a plurality of connecting buckles;

when the inflation and deflation assembly needs to be fixed on an external fixed surface, the connecting buckle is sleeved on the gas collecting pipe and is fixedly connected with the external fixed surface.

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