CN212338438U

CN212338438U - Sleeve type internal and external double water-closing flexible connecting device for inspection well

Info

Publication number: CN212338438U
Application number: CN202020572132.2U
Authority: CN
Inventors: 丁永明; 何军; 丁东东; 马垚君; 孙冲
Original assignee: Hangzhou Tanke Machinery Technology Co ltd
Current assignee: Hangzhou Tanke Machinery Technology Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-01-12
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a sleeve type flexible connection device with double water closing inside and outside for an inspection well, which comprises a receiving sleeve, wherein the receiving sleeve is sleeved on a drainage pipeline and is arranged between the drainage pipeline and the wall of the inspection well, and the inner diameter of the receiving sleeve is larger than the outer diameter of the drainage pipeline; the first connecting layer is wrapped at the connecting position of the end part of the receiving sleeve positioned on the outer side of the well wall of the inspection well and the drainage pipeline; the second connecting layer wraps the joint of the end, located on the inner side of the well wall of the inspection well, of the bearing sleeve and the drainage pipeline, and the second connecting layer is a telescopic elastic component. Flexible sealing between the inspection well and the drainage pipeline is realized through the matching of the bearing sleeve sleeved on the drainage pipeline and the first connecting layer and the second connecting layer, and the sealed water performance can be still kept when the pipeline and the inspection well have non-uniform settlement to a certain degree.

Description

Sleeve type internal and external double water-closing flexible connecting device for inspection well

Technical Field

The utility model belongs to the technical field of the municipal works technique and specifically relates to an inside and outside dual water flexible connection device that closes for inspection shaft's sleeve-type.

Background

The drainage pipeline is provided with inspection wells at the intersection, the turning position, the pipe diameter or gradient changing position, the drop position and the linear pipe section at intervals of a certain distance (40-120 meters), and is mainly used for regular inspection, cleaning, dredging and the like. Inspection wells are generally of the type and material such as brick laying, concrete pouring, integrated plastic (glass fiber reinforced plastics) and the like, and for drainage pipelines with larger calibers, the former two are more commonly applied. In recent years, problems such as water and soil loss and road collapse caused by water leakage of drainage pipelines frequently occur, higher requirements are put on the sealing performance and reliability of drainage pipelines, problems such as interface damage and pipeline damage caused by uneven settlement are more likely to occur at the connection part of an inspection well and a pipeline, and in turn, water and soil stability near the inspection well is damaged to form vicious circle. The rigid connection is usually adopted at the connection part of the inspection well and the pipeline, which is a direct cause of the above problems. The relevant specifications and patents also define several flexible interface approaches: for example, CECS 129-2001 < buried water supply and drainage glass fiber reinforced thermosetting resin sand inclusion pipe pipeline construction and acceptance criteria > recommends that a short pipe is adopted as transition when the pipeline is connected with a rigid wall, and two ends of the short pipe are respectively connected with the pipeline and the rigid wall by flexible joints; chinese patent CN202157339 proposes a concrete inspection well chamber with flexible interface connection branch pipes, the connection branch pipes are flexibly butted with concrete pipe sockets or sockets to adapt to settlement; chinese patent CN202882100U proposes a round manhole with a flexible joint, in which two opposite sides of the lower well chamber are both provided with a contracting mouth, the contracting mouth is a socket, two ends of the branch pipe access section are both sockets matched with the socket, and the contracting mouth is inserted with a branch pipe access section. Above several kinds of modes, homoenergetic keep connecing not adapting to the inhomogeneous settlement of pipeline and inspection shaft to a certain extent under the destroyed condition, nevertheless flexible joint (sealed face) all be located the inspection shaft outside, can't overhaul in the well, when flexible joint appears the sealing strip ageing even destroy, be difficult to in time discover the problem of leaking, overhaul also need the excavation go on, with high costs, the degree of difficulty is big.

SUMMERY OF THE UTILITY MODEL

To the sealed problem of inspection shaft and drain pipe connection position among the prior art, realize the flexible seal between inspection shaft and the drainage pipe through cup jointing in the first articulamentum of accepting sleeve cooperation and the second articulamentum of drainage pipe, still can keep sealed when pipeline and inspection shaft appear certain degree inhomogeneous settlement, the connected mode is sealed reliable to can overhaul in the inspection shaft, thereby improve the reliability, the maintainability of inspection shaft and pipe connection greatly.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sleeve type flexible connection device with double water closing inside and outside for an inspection well comprises a receiving sleeve, wherein the receiving sleeve is sleeved on a drainage pipeline and is arranged between the drainage pipeline and the wall of the inspection well, and the inner diameter of the receiving sleeve is larger than the outer diameter of the drainage pipeline; the first connecting layer is wrapped at the connecting position of the end part of the receiving sleeve positioned on the outer side of the well wall of the inspection well and the drainage pipeline; the second connecting layer wraps the joint of the end, located on the inner side of the well wall of the inspection well, of the bearing sleeve and the drainage pipeline, and the second connecting layer is a telescopic elastic component. The bearing sleeve is rigidly connected with the wall of the inspection well or directly laid on the wall of the well in a prefabricated manner, the bearing sleeve is sleeved on the outer periphery of the drainage pipeline, and the end surface of the drainage pipeline protrudes out of the end surface of the bearing sleeve positioned in the inspection well; the first connecting layer is positioned outside the inspection well and is used for ensuring the water closing capacity between the outer wall of the drainage pipeline and the outer wall of the bearing sleeve while bearing the extrusion of external soil and underground water; the second articulable elastic component is laid on the inner side of the inspection well, the outer wall of the drainage pipeline is guaranteed to be flexibly sealed with the outer wall of the bearing sleeve, the inner diameter of the bearing sleeve is larger than the outer diameter of the drainage pipeline, and the pipe can move axially or radially to a certain extent relative to the bearing sleeve.

Preferably, one end of the first connecting layer is wrapped on the outer wall, close to the outer side of the wall of the inspection well, of the receiving sleeve, and the other end of the first connecting layer is wrapped on the outer wall, close to the receiving sleeve, of the drainage pipeline. The first connecting layer is used for sealing and accepting the joint of the sleeve and the drainage pipe, and the joint has a stepped structure after the sleeve and the drainage pipe are sleeved, so that the joint is ensured to be isolated from an external soil layer by wrapping and covering the first connecting layer, and the sealing performance of the connecting structure is improved.

Preferably, the first connecting layer composite structure comprises a separation layer group and an anti-permeation layer arranged inside the separation layer group. Keep apart the bed group including setting up in the top layer at prevention of seepage permeable course top and setting up in the bottom of prevention of seepage permeable course bottom, keep apart the bed group and be used for keeping apart outside soil layer and inside drainage pipe for the material of internal environment does not run off, the material of inside and outside environment does not mix, and can resist the pressure of inspection shaft outside grit, possesses corrosion-resistant characteristics simultaneously. The top layer and the bottom layer of the isolation layer group jointly support and protect the anti-permeation layer, so that the anti-permeation layer is prevented from being influenced by external pressure, physical erosion and chemical erosion, and the service life of the first connecting layer is effectively prolonged; the anti-seepage layer arranged between the isolation layers is mainly used for preventing fluid inside and outside the first connection layer from interacting, and the water closing function of the first connection layer is guaranteed to be achieved.

Preferably, the first connecting layer is made of a soft material. The first connecting layer and the second connecting layer have the same characteristics of flexibility and extensibility, and the sealing performance of the connecting structure can be still ensured when the drainage pipeline is unevenly settled due to gravity.

Preferably, the second connecting layer comprises an elastic sealing sleeve and a clamping component arranged at two ends of the elastic sealing sleeve, the clamping component comprises a first clamping component and a second clamping component, the first clamping component is sleeved on the bearing sleeve in a pressing and clamping mode, and the second clamping component is sleeved on the drainage pipeline in a pressing and clamping mode. The locking piece assembly is used for clamping the elastic sealing sleeve at the joint of the bearing sleeve and the drainage pipeline positioned in the inspection well part, so that the water closing capacity of the second connecting layer is guaranteed, and the locking piece assembly can still guarantee the sealing and water closing of the second connecting piece even if the drainage pipeline and the bearing sleeve are in relative displacement.

Preferably, the second connecting layer further comprises a sealing element arranged on the inner sides of the first embracing member and the second embracing member, the outer wall of the bearing sleeve is connected with the sealing element on the inner side of the first embracing member in a pressing mode, and the outer wall of the drainage pipeline is connected with the sealing element on the inner side of the second embracing member in a pressing mode. The sealing piece further improves the sealing performance between the first locking piece and the bearing sleeve and the sealing performance between the second locking piece and the drainage pipeline, and ensures that fluid inside and outside the second connecting layer cannot pass through the sealing structure.

Preferably, a sedimentation cavity is arranged between the receiving sleeve and the drainage pipeline. The bearing sleeve is movably sleeved on the drainage pipeline to ensure that the drainage pipeline can move in the bearing sleeve, and the settling chamber is used for providing space allowance for the movement of the drainage pipeline in the bearing sleeve, so that the extrusion damage condition easily occurring in the traditional rigid connection structure is avoided.

Therefore, the utility model discloses following beneficial effect has: (1) the flexible sealing between the inspection well and the drainage pipeline is realized by matching the bearing sleeve sleeved on the drainage pipeline with the second connecting layer and the first connecting layer which are respectively arranged inside and outside the inspection well, and the sealing can be still kept when the pipeline and the inspection well have uneven settlement to a certain degree; (2) the pressure of sand stones outside the inspection well is resisted through the isolation layer group in the first connecting layer, and meanwhile, the isolation of inner and outer fluids is realized by means of the anti-seepage layer in the middle of the isolation layer group, so that the water closing capacity of the connecting structure is realized; (3) the sealing connection structure on the inner side of the inspection well is realized by matching the cohesive component in the second connection layer with the elastic sealing sleeve, so that the sealing effect can still be ensured when the drainage pipeline and the inspection well are subjected to relative displacement; (4) the anti-permeation layer in the first connecting layer is wound on the isolation layer group in an overlapped mode, and a multi-isolation structure inside and outside the first connecting layer can be achieved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2.

In the figure: 1. the bearing sleeve comprises a bearing sleeve body, 2, a first connecting layer, 3, a second connecting layer, 31, an elastic sealing sleeve, 4, an isolation layer group, 5, an anti-seepage layer, 51, a waterproof cloth sleeve, 6, a holding assembly component, 61, a first holding assembly, 62, a second holding assembly, 7, a sealing element, 8, a settling cavity, 9, a drainage pipeline, 10 and an inspection well.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1

As shown in fig. 1, a sleeve type flexible connection device for internal and external double water-closing of an inspection well comprises a receiving sleeve 1, wherein the receiving sleeve 1 is sleeved on a drainage pipeline 9 and is arranged between the drainage pipeline 9 and the wall of the inspection well 10, and the inner diameter of the receiving sleeve 1 is larger than the outer diameter of the drainage pipeline 9; the first connecting layer 2 is wrapped at the connecting position of the end part of the receiving sleeve 1, which is positioned on the outer side of the well wall of the inspection well 10, and the drainage pipeline 9; and the second connecting layer 3 is wrapped at the joint of the end part of the bearing sleeve position 1, which is positioned on the inner side of the well wall of the inspection well 10, and the drainage pipeline 9, and the second connecting layer 3 is a telescopic elastic component. The bearing sleeve 1 is rigidly connected with the wall of the inspection well 10 or directly laid on the wall of the well in a prefabricated manner, the bearing sleeve 1 is sleeved on the outer periphery of the drainage pipeline 9, and the end surface of the drainage pipeline 9 protrudes out of the end surface of the bearing sleeve 1 positioned in the inspection well 10; the first connecting layer 2 is positioned outside the inspection well 10 and used for ensuring the sealing between the outer wall of the drainage pipeline 9 and the outer wall of the bearing sleeve 1 and bearing the extrusion of external soil and underground water; second articulable elastic component is regarded as to second articulable 3, and is located inspection shaft 10 inboard, guarantees drainage pipe 9 outer wall and accepts the flexible seal between the sleeve 1 outer wall, accepts the sleeve 1 internal diameter and is greater than drainage pipe 9 external diameter to this can adapt to drainage pipe 9 and for accepting sleeve 1 certain degree axial displacement or radial movement, avoids making both relative positions change because of subsiding of drainage pipe 9 or inspection shaft 10, and then leads to sealing connection structure's inefficacy.

One end of the first connecting layer 2 is wrapped on the outer wall, close to the outer side of the well wall of the inspection well 10, of the bearing sleeve 1, and the other end of the first connecting layer 2 is wrapped on the outer wall, close to the bearing sleeve 1, of the drainage pipeline 9. First articulamentum 2 is used for the sealed linking department of accepting sleeve 1 and drainage pipe 9, because it has the echelonment structure to accept sleeve 1 and the linking department of drainage pipe cup joint the back, consequently needs the parcel through first articulamentum 2 to cover and ensures linking department and external soil layer to keep apart, promotes connection structure's sealing performance. The first connecting layer 2 is a composite structure and comprises isolation layer groups 4 and anti-permeation layers 5 arranged between the isolation layer groups 4. Keep apart the bed group including setting up in the top layer at prevention of seepage permeable course top and setting up in the bottom of prevention of seepage permeable course bottom, keep apart the bed group and be used for keeping apart outside soil layer and inside drainage pipe for the material of internal environment does not run off, the material of inside and outside environment does not mix, and can resist the pressure of inspection shaft outside grit, possesses corrosion-resistant characteristics simultaneously. The top layer and the bottom layer of the isolation layer group jointly support and protect the anti-permeation layer, so that the anti-permeation layer is prevented from being influenced by external pressure, physical erosion and chemical erosion, and the service life of the first connecting layer is effectively prolonged; the anti-seepage layer arranged between the isolation layers is mainly used for preventing fluid inside and outside the first connection layer from interacting, and the water closing function of the first connection layer is guaranteed to be achieved. The first connecting layer 2 is made of soft material. The first connecting layer 2 has the same characteristics of flexibility and extensibility as the second connecting layer 3, and the sealing performance of the drainage pipeline 9 can be still ensured when the drainage pipeline is unevenly settled due to gravity. In the embodiment, the isolation layer is made of geotextile, the anti-seepage layer 5 is made of polyethylene geomembrane, the isolation layer is wound on the joint of the drainage pipeline 9 and the receiving sleeve 1 in an overlapping mode to enable the outer diameter of the inner winding layer formed by the isolation layer to be basically consistent with that of the receiving sleeve 1, the anti-seepage layer 5 is wound on the inner winding layer formed by the isolation layer and the outer wall of the receiving sleeve 1 in an overlapping mode, finally, a plurality of isolation layers are wound outside the wound anti-seepage layer 5 in an overlapping mode to form an outer winding layer, and isolation and sealing are achieved through the isolation layers wound on the middle of the joint of the drainage pipeline 9 and the receiving sleeve 1 in a large number.

The second tie layer 3 includes elastic sealing boot 31 and sets up in the piece subassembly 6 that closes of embracing at elastic sealing boot 31 both ends, and the piece subassembly 6 that closes includes first embracing piece 61 and second embracing piece 62, and first embracing piece 61 is pressed the card and is cup jointed in accepting sleeve 1, and second embracing piece 62 is pressed the card and is cup jointed drainage pipe 9. The embracing component assembly 6 is used for clamping the elastic sealing sleeve 31 at the joint of the bearing sleeve 1 and the drainage pipeline 9 positioned in the inspection well 10 part, so that the water closing capacity of the second connecting layer 3 is ensured, and even if the drainage pipeline 9 and the bearing sleeve 1 are in relative displacement, the embracing component assembly 6 still can ensure the sealing and water closing of the second connecting piece. The elastic sealing sleeve 31 in this embodiment may be made of rubber or PE, and has a certain pressure resistance, and has a step or corrugated structure in shape that can adapt to the relative displacement between the drainage pipe 9 and the receiving sleeve 1.

A sedimentation cavity 8 is arranged between the bearing sleeve 1 and the drainage pipeline 9. The bearing sleeve 1 is movably sleeved on the drainage pipeline 9, the drainage pipeline 9 can move in the bearing sleeve 1, and the settling chamber 8 is used for providing space allowance for the movement of the drainage pipeline 9 in the bearing sleeve 1, so that the extrusion damage condition easily occurring in the traditional rigid connection structure is avoided.

The second connecting layer 3 of this embodiment mainly relies on the overlapping realization of prevention of seepage permeable barrier 5 to close the ability of swimming, when drainage pipe 9 and accept when appearing relative displacement between the sleeve 1, because geotechnological cloth, prevention of seepage membrane self elasticity and certain mutual overlap, can continue to keep closing the water state, and can resist the pressure of inspection shaft 10 outside grit, groundwater.

Example 2

As shown in fig. 2, a sleeve-type flexible connection device for water-blocking in and out double for an inspection well has the same basic principle as that of embodiment 1, but a sealing element 7 is installed on the inner side of the working surface of the elastic sealing sleeve 31 of the first connection layer 2, so that the second connection layer 3 further comprises the sealing element 7 arranged on the inner side of the first locking element 61 and the second locking element 62, the sealing element 7 on the inner side of the first locking element 61 is connected with the outer wall of the receiving sleeve 1 in a pressing manner, and the sealing element 7 on the inner side of the second locking element 62 is connected with the outer wall of the drainage pipeline 9 in a pressing manner. The sealing element 7 further improves the sealing performance between the first locking element 61 and the receiving sleeve 1 and the sealing performance between the second locking element 62 and the drainage pipeline 9, and ensures that the fluid inside and outside the second connecting layer 3 cannot pass through the sealing structure. In this embodiment, the sealing member 7 is an elastic sealing ring commercially available, so as to better adapt to the unevenness of the joint of the drainage pipe 9 and the outer wall of the receiving sleeve 1. Furthermore, the first connection layer 2 in this embodiment is further provided with a waterproof cloth cover 51, the waterproof cloth cover 51 in this embodiment is made of materials such as silica gel waterproof cloth and PVC waterproof cloth, and the waterproof cloth cover 51 with enough length allowance is arranged on the inner side of the isolation layer, so that the waterproof cloth cover can adapt to the relative displacement between the drainage pipeline 9 and the bearing sleeve 1, and can be matched with the isolation layer to form the first connection layer 2 with the water-closing isolation function.

In addition to the above embodiments, the technical features of the present invention can be re-selected and combined within the scope of the present invention as disclosed in the claims and the specification to constitute new embodiments, which can be realized by those skilled in the art without any creative work, therefore, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and within the protection scope of the present invention.

Claims

1. A sleeve type flexible connection device with double water closing function for an inspection well is characterized by comprising:

the device comprises a receiving sleeve (1), wherein the receiving sleeve (1) is sleeved on the drainage pipeline and arranged between the drainage pipeline and the wall of the inspection well, and the inner diameter of the receiving sleeve (1) is larger than the outer diameter of the drainage pipeline;

the first connecting layer (2) is wrapped at the connecting position of the end part of the receiving sleeve positioned on the outer side of the wall of the inspection well and the drainage pipeline;

the inspection well comprises a second connecting layer (3), the second connecting layer (3) is wrapped at the joint of the end part of the bearing sleeve, which is positioned on the inner side of the wall of the inspection well, and the drainage pipeline, and the second connecting layer (3) is a telescopic elastic component.

2. The sleeve type internal and external double water-closing flexible connecting device for the inspection well is characterized in that one end of the first connecting layer (2) is wrapped on the outer wall of the receiving sleeve (1) close to the outer side of the wall of the inspection well, and the other end of the first connecting layer (2) is wrapped on the outer wall of the drainage pipeline close to the receiving sleeve (1).

3. A telescopic internal and external double water-closing flexible connection device for an inspection well according to claim 2, characterized in that the first connection layer (2) is of a composite structure comprising a separation layer group (4) and an anti-seepage layer (5) arranged inside the separation layer group (4).

4. A telescopic internal and external double water-tight flexible connection device for an inspection well according to claim 2, characterized in that said first connection layer (2) is made of soft material.

5. The telescopic inner and outer double water-closing flexible connecting device for the inspection well is characterized in that the second connecting layer (3) comprises an elastic sealing sleeve (31) and clamping component assemblies (6) arranged at two ends of the elastic sealing sleeve (31), each clamping component assembly (6) comprises a first clamping component (61) and a second clamping component (62), the first clamping component (61) is in press-fit connection with the receiving sleeve (1), and the second clamping component (62) is in press-fit connection with the drainage pipeline.

6. A sleeve type internal and external double water-closing flexible connecting device for an inspection well as claimed in claim 5, wherein said second connecting layer (3) further comprises a sealing member (7) disposed inside the first engaging member (61) and the second engaging member (62), the sealing member (7) inside the first engaging member (61) is press-fitted to the outer wall of the receiving sleeve (1), and the sealing member (7) inside the second engaging member (62) is press-fitted to the outer wall of the drainage pipe.

7. A telescopic flexible connection device with double water closure for manhole according to any of claims 1-6, characterized in that a settling chamber (8) is provided between the receiving sleeve (1) and the drainage pipe.