CN212455595U - Flexible cut-off device and pipeline provided with same - Google Patents

Abstract

The utility model discloses a flexible cut-off equipment and installation device's pipeline, flexible cut-off equipment includes: the rubber sleeve is provided with a through flow channel, the rubber sleeve is of an integrated structure, at least one independent pressurizing cavity is arranged in the rubber sleeve, the rubber sleeve is of an integrated structure, and an outer rubber layer of each pressurizing cavity is provided with an inlet and outlet hole which is communicated with the pressurizing cavity; the outer sleeve is sleeved outside the rubber sleeve, two ends of the outer sleeve are respectively provided with a limiting part, namely a first limiting part and a second limiting part, the first limiting part is arranged at the port of the outer sleeve and extends outwards, and the second limiting part is arranged at the other end of the outer sleeve and extends inwards; the third limiting part is arranged on the inner side of the end part of the outer sleeve close to the side of the first limiting part, and the rubber sleeve is clamped between the second limiting part and the third limiting part. The utility model discloses one end with spacing portion demolish can, the installation is maintained conveniently.

Description

Flexible cut-off device and pipeline provided with same

Technical Field

The utility model relates to a drainage equipment technical field, concretely relates to flexible cut-off equipment and installation device's pipeline.

Background

The flexible cut-off device is a cut-off 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 connected with the end part of the outer shell in a sealing way 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 cut off. However, when the pipe diameter of the drainage pipe or the discharge opening butted with the diversion well is larger (if the pipe diameter is more than DN 400), the pipe diameter of the rubber sleeve cannot be larger than the deformation amount, at the moment, the end part of the rubber sleeve and the end part of the outer shell are under larger deformation, the end part of the rubber sleeve slides out between the flange and the end part of the outer shell, and the sealing of the pressurizing cavity is poor. And the matching nature of flexible cut-off equipment shell body and pipeline among the prior art is not good, often is the end connection with the tip of shell body and pipeline, need occupy the pipeline tip and set up the mounting well, required mounting well is also big when flexible cut-off equipment specification is great, and the infrastructure engineering volume is big, and the low cost of efficiency of construction is high, and later maintenance is inconvenient, consequently, needs a flexible cut-off equipment that can solve sealed problem easy to assemble urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of above-mentioned background art, provide a flexible cut-off equipment and installation device's pipeline, have sealed effectual, simple structure and easy to assemble the advantage of maintaining.

The utility model discloses a flexible cut-off equipment, include:

the rubber sleeve is provided with a through flow channel, the rubber sleeve is of an integrated structure, at least one independent pressurizing cavity is arranged in the rubber sleeve, the rubber sleeve is of an integrated structure, and the rubber sleeve, in which the at least one independent pressurizing cavity is arranged, at the position of each pressurizing cavity is provided with an outer rubber layer and an inner rubber layer; an inlet and outlet hole is formed in the outer rubber layer of each pressurizing cavity and communicated with the pressurizing cavity;

the outer sleeve is sleeved outside the rubber sleeve, two ends of the outer sleeve are respectively provided with a limiting part, namely a first limiting part and a second limiting part, the first limiting part is arranged at the port of the outer sleeve and extends outwards, and the second limiting part is arranged at the port of the other end of the outer sleeve and extends inwards;

the third limiting part is arranged on the inner side of the end part of the outer sleeve close to the side of the first limiting part, and the rubber sleeve is clamped between the second limiting part and the third limiting part.

Optionally, the pressurizing cavity is a lower pressurizing cavity, the lower pressurizing cavity is arranged on the lower half part of the rubber sleeve, and the outer rubber layer on the side of the lower pressurizing cavity is provided with a lower inlet and outlet hole.

Optionally, two independent pressurizing cavities are arranged, namely an upper pressurizing cavity and a lower pressurizing cavity, the upper pressurizing cavity and the lower pressurizing cavity are respectively arranged on the upper side and the lower side of the rubber sleeve, an upper outlet hole communicated with the upper pressurizing cavity is formed in the outer rubber layer on the side where the upper pressurizing cavity is located, and a lower inlet hole communicated with the lower pressurizing cavity is formed in the outer rubber layer on the side where the lower pressurizing cavity is located.

Optionally, three independent inflation cavities are provided, and are divided into three parts along the circumferential direction of the rubber sleeve, and each rubber sleeve is provided with one inflation cavity;

or four independent pressurizing cavities are arranged and are divided into four parts along the circumferential direction of the rubber sleeve, and each part of the rubber sleeve is provided with one pressurizing cavity.

Optionally, the outer sleeve has a pipe body arranged horizontally, and two ends of the pipe body are provided with bosses protruding in opposite directions, wherein the boss protruding outwards is a first limiting portion, the boss protruding inwards is a second limiting portion, and the first limiting portion is provided with a mounting hole.

Optionally, the third limiting portion includes a bending piece, the bending piece has a horizontal portion and a vertical portion, the horizontal portion is provided with a mounting hole, the horizontal portion is connected with the outer sleeve, and the vertical portion abuts against the second limiting portion to hold the rubber sleeve.

Optionally, the third limiting part comprises a plurality of bending pieces, and the bending pieces are arranged at intervals along the end part of the rubber sleeve;

or the bending piece of the third limiting part is of an integral structure, and the shape of the vertical part of the bending piece is matched with the end part of the rubber sleeve.

In another aspect, the present invention further provides a pipeline, wherein a flexible cut-off device as described above is installed in a port of the pipeline;

the outer wall of outer sleeve with be close to the laminating of the port inner wall of pipeline, the first spacing portion of outer sleeve is fixed in around the port of pipeline, the spacing portion of second extends to in the pipeline, and the spacing portion of second and the spacing portion of third fix the rubber sleeve jointly.

Compared with the prior art, the utility model has the advantages as follows:

(1) the flexible cut-off device of the utility model can only adopt a rubber sleeve structure, a pressurizing cavity is arranged in the rubber sleeve, the whole rubber sleeve is of an integrated structure, compared with the prior art, the problem of sealing the pressurizing cavity is avoided, the structure is simpler, and the installation and the use are convenient; establish rubber sleeve clamp through the spacing portion that sets up at rubber sleeve both ends and fix, when installing and later maintenance rubber sleeve, and only need follow one end and demolish the spacing portion of third and can wholly take out rubber sleeve, the installation is maintained conveniently.

(2) The utility model relates to a set up an independent plenum chamber or two independent plenum chambers in flexible cut-off equipment's the rubber sleeve, rubber sleeve except having the traditional function of closing the circulation passageway, still has the function of damming, can only pressurize the chamber down, and the inlayer rubber layer in plenum chamber uplifts upwards down, and the lower half of inflating the rubber sleeve after the deformation is equivalent to an adjustment weir that can height-adjusting, when the water level rises to more than the height that dampens, water can carry out the overflow from the higher authority. Therefore, the accumulated mud at the bottom of the pipeline or the accumulated mud in the diversion well can be intercepted, and the accumulated mud at the bottom is prevented from entering the natural water body along with rainwater to pollute the natural water body. In addition, the water level adjusting device is used at the drainage outlet, the interception height of the lower half part of the rubber sleeve can be adjusted according to the natural water level condition, the natural water body is prevented from flowing backwards, and the flood is not influenced by the overflow from the top of the lower half part of the rubber sleeve when the natural water body flows backwards.

(3) The utility model relates to a three-dimensional or quadriversal deformation are designed into to flexible cut-off equipment's rubber sleeve and are closed cut-off passage, fill the sealing member in the clearance of rubber sleeve closed position department, and rubber sleeve closes the atmospheric pressure that uses less, can realize under lower pressure (being less than 2bar) can realize zero leakage, and is sealed effectual, and atmospheric pressure is low, and seal structure is simple, does not influence the current ability of circulation passageway yet.

(4) The utility model relates to an installation flexible cut-off equipment's pipeline, when the installation with the tip at the pipeline fixed in the installation of first spacing portion installation, when the installation perhaps dismantles, only need demolish first spacing portion from the tip of pipeline, can accomplish the installation and the dismantlement of whole device, when needs maintain rubber sleeve, demolish the spacing portion of third, can be with rubber sleeve whole take out maintenance or change, simple easy operation.

Drawings

FIG. 1 is a schematic view of the embodiment 1 in a mounted state.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a partially enlarged view of a portion a in fig. 1.

Fig. 4 is a schematic view showing the state of opening the rubber sleeve type two-flow passage.

Fig. 5 is a schematic view of a rubber sleeve type two-flow passage in a shut-off state.

Fig. 6 is a schematic view showing the state of opening the rubber sleeve type three-way flow passage.

Fig. 7 is a schematic view of a rubber sleeve type three flow passage in a shut-off state.

Fig. 8 is a schematic view of three independent inflation chambers provided in a rubber sleeve form III.

Fig. 9 is a schematic view of a three-arrangement of four independent plenum chambers in the form of rubber sleeves.

Reference numerals: 1-rubber sleeve, 10-flow channel, 11-pressurizing cavity, 110-upper pressurizing cavity, 111-lower pressurizing cavity, 12-outer rubber layer, 13-inner rubber layer, 2-outer sleeve, 20-first limiting part, 21-second limiting part, 22-third limiting part, 220-horizontal part, 221-vertical part and 3-port.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example 1

Referring to fig. 1 to 8, the utility model provides a flexible cut-off device, including rubber sleeve 1, outer sleeve 2 and third spacing portion 22, rubber sleeve 1 is equipped with through flow channel 10, rubber sleeve 1 is an integrated structure, and is equipped with at least one independent pressurizing cavity 11 in rubber sleeve 1, rubber sleeve 1 is an integrated structure, and the rubber sleeve 1 that sets up at least one independent pressurizing cavity 11 in rubber sleeve 1 each the position department of pressurizing cavity 11 has outer rubber layer 12 and inner rubber layer 13; an inlet and outlet hole is arranged on the outer rubber layer 12 of each pressurizing cavity 11 and communicated with the pressurizing cavity 11; the outer sleeve 2 is sleeved outside the rubber sleeve 1, two ends of the outer sleeve 2 are respectively provided with a limiting part, namely a first limiting part 20 and a second limiting part 21, the first limiting part 20 is arranged at the port of the outer sleeve 2 and extends outwards, and the second limiting part 21 is arranged at the port of the other end of the outer sleeve 2 and extends inwards; and a third stopper 23 provided inside the end of the outer sleeve 2 on the side close to the first stopper 20, wherein the rubber sleeve 1 is held between the second stopper 21 and the third stopper 22. The rubber structure that forms chamber 11 and the rubber structure of other positions as an organic whole structure in this embodiment, because rubber sleeve 1 does not constitute chamber 11 with other parts jointly, need not to set up seal structure and be used for sealed chamber 11 that pressurizes to prevent to pressurize chamber 11 and leak, simple structure, easy to assemble, application scope is wide. Rubber sleeve 1 is only fixed at both ends, does not set up mounting structure on rubber sleeve 1's pipe shaft, and it is convenient to dismantle, and the installation is maintained easy operation.

Preferably, as a specific embodiment, the structure of the rubber sleeve 1 has the following forms:

referring to fig. 2, in the present embodiment, a rubber sleeve 1 is cylindrical, a pressurizing cavity 11 in the rubber sleeve 1 is also cylindrical, an inlet and an outlet are formed in the rubber sleeve 1, the pressurizing cavity 11 is pressurized through the inlet and the outlet, the rubber sleeve 1 deforms, a flow channel 19 is cut off, the pressurizing cavity 11 is pressurized through the inlet and the outlet, the rubber sleeve 1 recovers deformation, and the flow channel 19 is communicated;

the second structural form of the rubber sleeve 1 is shown in fig. 4 and 5, wherein the cross-sectional shape of the rubber sleeve 1 is circular, when a charging cavity 11 is provided, the charging cavity 11 is a lower charging cavity 111, the cross-sectional shape of the lower charging cavity 111 is such that the cross-sectional arc length of the arc-shaped lower charging cavity 111 is smaller than the circumference of the rubber sleeve 1 at the cross-section, the rubber sleeve 1 at the position of the lower charging cavity 111 has an outer rubber layer 12 and an inner rubber layer 13, and the outer rubber layer 12 and the inner rubber layer 13 and the rubber sleeve 1 outside the charging cavity 11 are in an integral structure, wherein the arc length of the lower charging cavity 111 may occupy one half or two thirds of the circumference length of the whole rubber sleeve 1, different specifications may be designed according to different shut-off heights, and the arc length of the lower charging cavity 11 is more similar to the circumference length of the rubber sleeve as the shut-off height is higher. An outer rubber layer 12 of the lower pressurizing cavity 111 is provided with an inlet and outlet hole communicated with the pressurizing cavity 11, the inner rubber layer 13 on the side of the lower pressurizing cavity 111 is upwards raised by a certain height through the inlet and outlet hole for pressurizing, which is equivalent to a weir with adjustable height, when the inner rubber layer 13 is attached to the inner wall of the rubber sleeve 1 on the upper half part, the circulation channel 19 is stopped, and when the inner rubber layer 13 of the lower pressurizing cavity 111 on the lower half part in the structure is raised by a certain height, the top space of the lower pressurizing cavity can overflow, so that a part of silt garbage can be prevented from entering the downstream, and the downstream can be prevented from flowing backwards when the water level is too high;

the third structural form of the rubber sleeve 1, as shown in fig. 6 and 7, is to provide two independent pressurizing cavities 11, which are an upper pressurizing cavity 110 and a lower pressurizing cavity 111, respectively, the upper pressurizing cavity 110 and the lower pressurizing cavity 111 are respectively disposed at the upper side and the lower side of the rubber sleeve 1, the outer rubber layer 12 at the side of the upper pressurizing cavity 110 is provided with an upper outlet hole communicated with the upper pressurizing cavity 110, and the outer rubber layer 12 at the side of the lower pressurizing cavity 111 is provided with a lower inlet hole communicated with the lower pressurizing cavity 111.

The structural form of the rubber sleeve 1 is four, as shown in fig. 8, three independent inflation cavities 11 are provided, the rubber sleeve 1 is divided into three parts along the circumferential direction, and each rubber sleeve 1 is provided with one inflation cavity 11; alternatively, as shown in fig. 9, four independent pressurizing chambers 11 are provided, and are divided into four parts along the circumferential direction of the rubber sleeve 1, each pressurizing chamber 11 is provided for each rubber sleeve 1, and each pressurizing chamber 11 is provided with an inlet and outlet hole. Preferably, the rubber sleeve 1 should be divided into three or four equal parts, so as to ensure that the deformation of the inner rubber layer of each rubber sleeve 1 is the same, the pressurization is the same, and the control is convenient. The great rubber sleeve 1 of relative dimension, if adopt one or two halfbody structure relative deformation to make circulation passageway 10 end, if the pipe diameter of circulation passageway 10 is great, the deflection of the rubber sleeve 1 of upper and lower both sides is great, required pressure is great, not only sealed effect is not good, zero leakage can not be realized to circulation passageway 10, and there is the potential safety hazard of explosion, the three-dimensional or four-way deformation that use this embodiment close the circulation passageway, the inlayer rubber layer deflection of each independent pressurized cavity is little, required pressure is less, safety and reliability, good sealing effect, wide application range.

Further preferably, the inlet and outlet hole in this embodiment may be two holes of an inlet hole and an outlet hole provided in the outer rubber layer 12, or may be a hole provided in the outer rubber layer 12, and an inlet pipe and an outlet pipe are provided on a conveying pipe connected to the hole.

Further preferably, outer sleeve 2 has the pipe shaft of horizontal setting in this embodiment, and the both ends of pipe shaft are provided with the boss that the direction is opposite that protrudes, and wherein, the outside convex boss is first spacing portion 20, and the inside convex boss is spacing portion 21 of second, and first spacing portion 20 is equipped with the mounting hole, uses expansion bolts to fix first spacing portion 20 on the concrete structure around the pipeline port, and the pipe shaft is directly gone into in the pipeline, through third spacing portion 22.

Further preferably, referring to fig. 3, in the present embodiment, the third limiting portion 22 includes a bending member, the bending member has a horizontal portion 220 and a vertical portion 221, the horizontal portion 220 is provided with a mounting hole, the horizontal portion 220 is connected to the outer sleeve 2 through an expansion bolt, and the vertical portion 221 abuts against the second limiting portion 21. Preferably, the third limiting part comprises a plurality of bending pieces which are arranged at intervals along the end part of the rubber sleeve 1; or, the bent piece of the third limiting portion 22 is an integral structure, and the shape of the vertical portion 221 of the bent piece is matched with the end of the rubber sleeve 1. In the embodiment, the rubber sleeve 1 does not damage the whole result of the rubber sleeve 1, the rubber sleeve 1 is fixed at two ends, the fixing structure is simple, and the rubber sleeve is convenient to mount and dismount.

Example 2

On the basis of the embodiment 1, referring to fig. 1, a pipeline is provided, and the flexible cut-off device of the embodiment 1 is installed in a port 3 of the pipeline;

the outer wall of outer sleeve 2 and the laminating of the port 3 inner wall of pipeline, the outer wall of outer sleeve 2 and the laminating of the port 3 inner wall that is close to the pipeline, the first spacing portion 20 of outer sleeve 2 is fixed in around the port 3 of pipeline, and the spacing portion 21 of second extends to in the pipeline, and the spacing portion 21 of second and third 22 fix rubber sleeve 1 jointly. The third limiting part 22 and the end of the outer sleeve 2 are mounted on the pipeline 3 near the end. When the installation, fix the tip at the pipeline with the installation of first spacing portion, when installation or dismantlement, only need demolish first spacing portion from the tip of pipeline, can accomplish the installation and the dismantlement of whole device, when needing to maintain the rubber sleeve, demolish third spacing portion 22, can take out the maintenance or change rubber sleeve 1 is whole, simple easy operation. The flexible cut-off equipment of this embodiment does not occupy the space before the pipeline or after, installs the space of economizing in the pipeline, easy to assemble and later maintenance.

Various modifications and variations of the embodiments of the present invention may be made by those skilled in the art, and they are within the scope of the present invention provided they are within the scope of the claims and their equivalents.

What is not described in detail in the specification is prior art that is well known to those skilled in the art.

Claims (8)

1. A flexible flow stop device, comprising:

the rubber sleeve (1) is provided with a through circulation channel (10), the rubber sleeve (1) is of an integrated structure, at least one independent pressurizing cavity (11) is arranged in the rubber sleeve (1), the rubber sleeve (1) is of an integrated structure, and the rubber sleeve (1) at the position of each pressurizing cavity (11) of the at least one independent pressurizing cavity (11) in the rubber sleeve (1) is provided with an outer rubber layer (12) and an inner rubber layer (13); an inlet and outlet hole is formed in the outer rubber layer (12) of each pressurizing cavity (11) and communicated with the pressurizing cavity (11);

the rubber sleeve comprises an outer sleeve (2), wherein the outer sleeve (2) is sleeved outside the rubber sleeve (1), two ends of the outer sleeve (2) are respectively provided with a limiting part, namely a first limiting part (20) and a second limiting part (21), the first limiting part (20) is arranged at the port of the outer sleeve (2) and extends outwards, and the second limiting part (21) is arranged at the port of the other end of the outer sleeve (2) and extends inwards;

and the third limiting part (22) is arranged on the inner side of the end part of the outer sleeve (2) close to the side of the first limiting part (20), and the rubber sleeve (1) is clamped between the second limiting part (21) and the third limiting part (22).

2. A flexible shut off device as claimed in claim 1, wherein:

the lower pressurizing cavity is arranged on the lower half part of the rubber sleeve (1), and the outer rubber layer (12) on the side of the lower pressurizing cavity is provided with a lower inlet and outlet hole.

3. A flexible shut off device as claimed in claim 1, wherein:

the rubber sleeve is characterized in that the two independent pressurizing cavities (11) are arranged and are respectively an upper pressurizing cavity and a lower pressurizing cavity, the upper pressurizing cavity and the lower pressurizing cavity are respectively arranged on the upper side and the lower side of the rubber sleeve (1), an upper outlet hole communicated with the upper pressurizing cavity is formed in an outer rubber layer (12) on the side of the upper pressurizing cavity, and a lower inlet hole communicated with the lower pressurizing cavity is formed in an outer rubber layer (12) on the side of the lower pressurizing cavity.

4. A flexible shut off device as claimed in claim 1, wherein:

three independent pressurizing cavities are arranged and are divided into three parts along the circumferential direction of the rubber sleeve (1), and each part of the rubber sleeve (1) is provided with one pressurizing cavity (11);

or four independent pressurizing cavities are arranged and are divided into four parts along the circumferential direction of the rubber sleeve (1), and each part of the rubber sleeve (1) is provided with one pressurizing cavity (11).

5. A flexible shut off device as claimed in claim 1, wherein:

the outer sleeve (2) is provided with a pipe body which is horizontally arranged, bosses with opposite protruding directions are arranged at two ends of the pipe body, the boss protruding outwards is a first limiting portion (20), the boss protruding inwards is a second limiting portion (21), and the first limiting portion (20) is provided with a mounting hole.

6. A flexible shut off device as claimed in claim 1, wherein: the third limiting part (22) comprises a bending part, the bending part is provided with a horizontal part (220) and a vertical part (221), the horizontal part (220) is provided with an installation hole, the horizontal part (220) is connected with the outer sleeve (2), and the vertical part (221) and the second limiting part (21) are abutted to the rubber sleeve (1).

7. A flexible shut off device as claimed in claim 6, wherein: the third limiting part (22) comprises a plurality of bending pieces which are arranged at intervals along the end part of the rubber sleeve (1);

or the bending piece of the third limiting part (22) is of an integral structure, and the shape of the vertical part (221) of the bending piece is matched with the end part of the rubber sleeve (1).

8. A duct, characterized by:

-mounting a flexible shut-off device according to any one of claims 1 to 7 in a port (3) of said conduit;

the outer wall of outer sleeve (2) with be close to the laminating of port (3) inner wall of pipeline, first spacing portion (20) of outer sleeve (2) are fixed in around port (3) of pipeline, and spacing portion of second extends to in the pipeline, and spacing portion (21) of second and third (22) fix rubber sleeve (1) jointly.

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