CN111946899A - Pipeline connecting structure and pipeline transmission system - Google Patents

Abstract

The application discloses pipeline connection structure and pipeline transmission system relates to pipeline construction technical field. The pipeline connecting structure is used for connecting two adjacent sections of pipeline bodies, a limiting groove is arranged on the inner wall of one end of each pipeline body, and an inserting part is arranged at the other end of each pipeline body; the pipeline connecting structure also comprises a water stopping ring, the water stopping ring is limited and fixed in the limiting groove, one end face of the water stopping ring is connected with the pipeline body, and the end face of the water stopping ring is perpendicular to the axis of the pipeline body; when two adjacent sections of the pipeline bodies are connected, the inserting part of one section of the pipeline body is inserted into the limiting groove of the other section of the pipeline body, the outer wall of the inserting part is attached to the inner wall of the water stop ring, and the inserting part abuts against the end wall of the limiting groove. The pipeline transmission system comprises the pipeline connecting structure. The application provides a pipeline connection structure can avoid appearing shifting and cracked problem at push pipe construction termination water ring.

Description

Pipeline connecting structure and pipeline transmission system

Technical Field

The application relates to the technical field of pipeline construction, in particular to a pipeline connecting structure and a pipeline transmission system.

Background

The pipe jacking technology is a trenchless tunneling type pipeline laying construction technology used for municipal construction. In the pipe jacking construction process, a water stop ring is usually arranged at the joint of the pipelines and used for stopping water.

However, in the prior art, the water stop ring at the joint of the pipeline is directly adhered to the inner wall of the pipeline; in the construction of the jacking pipe, the water stop ring is easy to shift and break due to overlarge stress, so that the water stop effect cannot be achieved, and the laying quality of the pipeline is influenced.

Disclosure of Invention

The application provides a pipeline connecting structure and pipeline transmission system, at the pipe jacking in-process, avoid the problem that aversion and fracture appear in the seal ring of pipeline junction.

To solve the above problems, the present application provides, in one aspect:

a pipeline connecting structure is used for connecting two adjacent sections of pipeline bodies, a limiting groove is formed in the inner wall of one end of each pipeline body, and an inserting part is formed in the other end of each pipeline body;

the pipeline connecting structure further comprises a water stopping ring, the water stopping ring is limited and fixed in the limiting groove, one end face of the water stopping ring is connected with the pipeline body, and the end face of the water stopping ring is perpendicular to the axis of the pipeline body;

when two adjacent sections of the pipeline bodies are connected, the inserting part of one section of the pipeline body is inserted into the limiting groove of the other section of the pipeline body, the outer wall of the inserting part is attached to the inner wall of the water stop ring, and the inserting part is abutted to the end wall of the limiting groove.

In a possible embodiment, the water stop ring is connected with the pipe body through a connecting assembly; the connecting assembly is connected with the end face of the water stop ring and is connected with the pipeline body; the connecting assembly and the water stop ring are inserted into the limiting groove together, and the connecting assembly abuts against the end wall of the limiting groove;

the inserting part is abutted to the end wall of the limiting groove through the connecting component, and the inserting part is abutted to the connecting component.

In a possible embodiment, the connection assembly comprises a connection ring and at least one first connection arranged on an inner wall of the connection ring;

a corresponding second connecting piece is arranged on the inner wall of the pipeline body, and the first connecting piece is connected with the second connecting piece;

the end face of the water stop ring is connected to one end face of the connecting ring; the insertion part is abutted against the first connecting piece.

In a possible embodiment, the first connecting piece comprises a first connecting part and a locking part which are separately arranged; the second connecting piece is provided with a second connecting part;

one end of the first connecting part is fixedly connected with the connecting ring, and the other end of the first connecting part is inserted into the second connecting part and then is connected with the locking part in a locking manner.

In a possible embodiment, a protection piece is further connected to a side of the second connecting piece away from the limiting groove, and the protection piece is used for isolating a connection position of the first connecting part and the locking part from the outside.

In a possible embodiment, the outer wall of the connecting assembly is provided with a first positioning part;

a second positioning part is arranged in the limiting groove and is arranged along the axial direction of the pipeline body;

when the connecting assembly is inserted into the limiting groove, the first positioning portion is connected with the second positioning portion in an inserting mode.

In one possible embodiment, the plug-in part is provided with an oil filling opening corresponding to the position of the water stop ring, and a closing part is detachably connected to the oil filling opening.

In a possible embodiment, a sealing ring is further sleeved on the insertion part; the inner wall of the sealing ring is attached to the outer wall of the insertion part, and the outer diameter of the sealing ring is equal to that of the pipeline body;

when two adjacent pipeline bodies are connected, the sealing ring is clamped at the joint of the two pipeline bodies.

In a possible implementation manner, the pipeline connecting structure further comprises a limiting ring, and the limiting ring is sleeved outside the joint of two adjacent pipeline bodies;

the limiting ring is arranged corresponding to the sealing ring, and the inner wall of the limiting ring is attached to the outer wall of the sealing ring.

In another aspect, the present application further provides a pipeline transmission system, including the pipeline connecting structure.

The beneficial effect of this application is: the application provides a pipeline connecting structure for the connection of two adjacent sections of pipeline bodies. Wherein, a limit groove is arranged on the inner wall of one end of the pipeline body, and a water stop ring is fixed in the limit groove in a limiting way; one end face of the water stop ring is connected with the pipeline body, and the end face of the water stop ring is perpendicular to the axis of the pipeline body. The other end of the pipeline body is provided with a plug-in part. When two adjacent pipeline bodies are spliced, the splicing part of one pipeline body is spliced in the limiting groove of the other pipeline body to realize the connection of the two adjacent pipeline bodies, the splicing part is abutted against the end wall of the limiting groove, and the outer wall of the splicing part is attached to the inner wall of the water stop ring.

In pipe-jacking construction, axial thrust borne by the pipeline body is perpendicular to the end face of the water stop ring for connecting the pipeline body; therefore, the thrust force in the pipe jacking process cannot generate component force parallel to the end face; that is, the end face does not generate a force to separate the water stop ring from the pipe body. Therefore, the connection relation disconnection between the water stop ring and the pipeline body can be avoided, and the water stop ring is prevented from shifting relative to the pipeline body under the action of thrust. Meanwhile, the water stop ring is fixed in the limiting groove in a limiting mode, and the outer wall of the insertion part is attached to the inner wall of the water stop ring, so that the water stop ring can be limited from being distorted and deformed in the radial direction, and the water stop ring is prevented from being distorted and broken due to stress. Therefore, the pipeline connecting structure provided by the application can effectively avoid the problem that the water stop ring shifts and breaks.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is an exploded view of a pipe coupling;

FIG. 2 is a partially enlarged schematic view of a portion A of FIG. 1;

fig. 3 is a schematic sectional view showing a pipe connection structure in an exploded state;

FIG. 4 is a partial enlarged schematic view of portion B of FIG. 3;

FIG. 5 is a partial enlarged schematic view of a portion C of FIG. 3;

FIG. 6 is a partially enlarged schematic view of a portion D of FIG. 3;

FIG. 7 shows a schematic structural view of a second connector and guard;

FIG. 8 is a schematic cross-sectional view of a shield assembled to a second connector;

FIG. 9 is a schematic view in partial cross-section of a pipe joint structure after assembly;

figure 10 shows a schematic view of the external structure of a stop collar.

Description of the main element symbols:

1-a pipe body; 101-a limiting groove; 101 a-a second location section; 102-a plug-in part; 102 a-a fill port; 102 b-an abutment groove; 102 c-a closure; 103-a second connection; 103 a-a second connection; 103 b-a positioning groove; 103 c-a fourth connecting portion; 103c 1-open slots; 103c 2-locking groove;

2-a water stop ring;

3-connecting the components; 301-a first connector; 301 a-first connection; 301 b-locking part; 301 c-a transition section; 302-a connecting ring; 303-a first positioning portion;

4-a guard; 401-a third connection;

5-a sealing ring;

6-a limit ring.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar 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 only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; 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 application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The pipe jacking technology is a trenchless tunneling pipeline laying construction technology used for municipal construction, does not need to excavate a surface layer, and can pass through highways, ground buildings, underground structures, various underground pipelines and the like. In the pipe jacking construction process, a pipeline or a heading machine is pushed from a working well through a soil layer to a receiving well to be hoisted by means of the thrust of pipe jacking equipment such as a main jacking oil cylinder and an inter-pipeline relay. Meanwhile, the pipeline following the tool pipe or the heading machine is buried between the two wells, so that the construction method for laying the underground pipeline without excavating is realized. A corresponding water stop ring 2 is generally provided at the connecting position of the pipeline for the water stop function at the connecting position of the pipeline.

The embodiment provides a pipeline connecting structure which is used for connecting two adjacent pipeline bodies 1. Particularly, the connecting device is suitable for connecting two adjacent sections of pipeline bodies 1 in the pipe jacking technology; in the pipe jacking process, the problems of displacement and breakage of the water stop ring 2 at the joint of the two pipeline bodies 1 are avoided.

Example one

As shown in fig. 1 and 9, the pipeline connecting structure includes a pipeline body 1 and a water stop ring 2, and the water stop ring 2 is arranged at the joint of two adjacent pipeline bodies 1; wherein, the water stop ring 2 is used for playing the roles of water stop and seepage prevention.

In the embodiment, be provided with spacing groove 101 on the inner wall of pipeline body 1 one end, spacing groove 101 encircles the inner wall of pipeline body 1 and is provided with a week, and spacing groove 101 is close to pipeline body 1 open-ended one end and external intercommunication. The other end of the pipeline body 1 is provided with a plug-in connection part 102, the plug-in connection part 102 is tubular, and the plug-in connection part 102 and the pipeline body 1 are coaxially arranged. When two adjacent pipeline bodies 1 are connected, the insertion part 102 of one pipeline body 1 can be inserted into the limiting groove 101 of the other pipeline body 1, so that the two adjacent pipeline bodies 1 can be inserted.

The water stop ring 2 is inserted into the limiting groove 101, and the water stop ring 2 is limited and fixed in the limiting groove 101 to prevent the water stop ring 2 from moving freely in the limiting groove 101. In the embodiment, one end face of the water stop ring 2 is fixedly connected with the pipeline body 1; and the end face is arranged perpendicular to the axis of the pipe body 1.

When two adjacent pipeline bodies 1 are connected, the insertion part 102 of one pipeline body 1 is inserted into the limiting groove 101 of the other pipeline body 1, and the end surface of the insertion part 102 abuts against the end wall of the limiting groove 101, namely, the end of the limiting groove 101, which is far away from the opening of the pipeline body 1, is provided. The outer wall of the insertion part 102 is attached to the inner wall of the water stop ring 2 in the limiting groove 101, and further plays a limiting role in limiting the water stop ring 2.

In pipe jacking construction, the pipe jacking equipment applies an acting force to the pipeline body 1 along the axis, so that the pipeline body 1 is pushed into the construction layer. The water stop ring 2 is fixedly connected with the pipeline body 1 through an end face, and the end face is perpendicular to the axis of the pipeline body 1. Therefore, the thrust applied to the pipeline body 1 by the pipe jacking equipment cannot generate component force parallel to the end face, namely, the thrust cannot decompose shear stress for promoting the water stop ring 2 to be separated from the pipeline body 1, so that the connection part of the water stop ring 2 and the pipeline body 1 can be prevented from being broken due to stress, the water stop ring 2 can be kept relatively fixed relative to the pipeline body 1, and the water stop ring 2 is prevented from shifting relative to the pipeline body 1 under the action of the thrust.

Meanwhile, the water stop ring 2 is fixed and limited in the limiting groove 101, and the outer wall of the insertion part 102 is attached to the inner wall of the water stop ring 2, so that deformation and distortion of the water stop ring 2 in the radial direction are limited, and the water stop ring 2 is prevented from being broken due to overlarge stress.

To sum up, the pipeline connection structure that this application provided can effectively avoid the aversion and the fracture problem of stagnant water ring 2 to ensure the stagnant water effect of pipeline body junction, in order to ensure construction quality.

Example two

The embodiment provides a pipeline connecting structure, and it can be understood that the embodiment is a further improvement on the first embodiment.

In an embodiment, the pipe connection structure further comprises a connection assembly 3; the water stop ring 2 is connected to the pipeline body 1 through a connecting component 3; and the insertion part 102 is abutted against the end wall of the limit groove 101 through the connecting component 3.

As shown in fig. 1, 3 to 5, in particular, the connection assembly 3 comprises a connection ring 302 and at least one first connector 301; the first connector 301 is disposed on an inner wall of the connection ring 302, and the first connector 301 is used to connect the pipe body 1 to achieve connection of the connection ring 302 with the pipe body 1.

One end face of the water stop ring 2 is fixedly connected with one end face of the connecting ring 302; specifically, the end face of the water stop ring 2 and the connection ring 302 can be fixedly connected by bonding. The inner diameter of the connecting ring 302 is equal to the inner diameter of the water stop ring 2, and the outer diameter of the connecting ring 302 is equal to the outer diameter of the water stop ring 2, that is, the cross section of the connecting ring 302 is equal to that of the water stop ring 2.

In other embodiments, an end surface of the water stop ring 2 near the bottom of the limiting groove 101 may be directly adhered to the bottom of the limiting groove 101.

Referring to fig. 9 again, the connection ring 302 and the water stop ring 2 are inserted into the limit groove 101; the connection ring 302 is disposed on a side of the water stop ring 2 close to the end wall of the limiting groove 101, that is, the water stop ring 2 is disposed close to the opening of the pipe body 1 relative to the connection ring 302. One end face of the connecting ring 302 far away from the water stop ring 2 is abutted against the end wall of the limiting groove 101, so that limiting and fixing along the axial direction are realized. The first connecting piece 301 is connected with the pipeline body 1, and can realize the limiting and fixing of the connecting ring 302 along the other direction of the axis. Therefore, in the axial direction, the connecting ring 302 is limited and fixed in the limiting groove 101, and the water stop ring 2 is limited and fixed in the limiting groove 101, so that the water stop ring 2 is prevented from moving in the limiting groove 101 along the axial direction at will.

Further, the outer wall of the connecting ring 302 and the outer wall of the water stop ring 2 are both attached to the inner wall of the limiting groove 101; thus, the movement of the connection ring 302 and the water stop ring 2 can be restricted in the radial direction. Meanwhile, the outer wall of the insertion part 102 is attached to the inner wall of the water stop ring 2, so that the water stop ring 2 and the connection ring 302 can be restricted from moving in the other radial direction. Thereby, in the radial direction, the connection ring 302 and the water stop ring 2 are fixed in the limit groove 101 in a limited manner. Meanwhile, the water stop ring 2 can be prevented from being deformed and distorted in the radial direction in the stress process and being broken.

In conclusion, the water stop ring 2 is fixed in the limit groove 101 in a limited manner, so that the water stop ring 2 can be prevented from moving freely in the limit groove 101. Meanwhile, the water stop ring 2 can be prevented from being distorted and deformed to be broken when stressed; therefore, the water stop ring 2 is stably arranged at the joint of two adjacent pipeline bodies 1.

In some specific embodiments, one, two, three, four, six, seven, etc. first connectors 301 may be disposed on the connection ring 302 to achieve stable connection of the connection ring 302 with the pipe body 1.

In this embodiment, four first connectors 301 are provided, and the first connectors 301 are uniformly distributed along the circumferential direction of the connection ring 302. Thereby, the connection ring 302 can be fixedly connected to the pipe body 1, and the connection ring 302 can have uniform connection strength to improve connection stability.

In the embodiment, one end of the first connector 301 is disposed on the inner wall of the connection ring 302; the other end protrudes out of the space surrounded by the connecting ring 302 in the direction far away from the water stop ring 2.

A second connecting piece 103 is arranged on the inner wall of the pipeline body 1, and the second connecting piece 103 is arranged at one end of the pipeline body 1 close to the limiting groove 101; the second connector 103 is used for being matched and connected with the first connector 301 to realize the connection between the connecting ring 302 and the pipeline body 1, so as to realize the connection between the water stop ring 2 and the pipeline body 1. The second connecting pieces 103 are arranged in one-to-one correspondence with the first connecting pieces 301, that is, the number of the second connecting pieces 103 is equal to that of the first connecting pieces 301.

In this embodiment, four second connecting members 103 are disposed on the inner wall of the pipe body 1, and the four second connecting members 103 are uniformly distributed along the circumferential direction of the pipe body 1. The second connectors 103 are connected with the first connectors 301 in a one-to-one correspondence, so as to realize the fixed connection of the connection ring 302 with the pipe body 1.

In the embodiment, the structures and the connection manners of the four sets of the first connection members 301 and the second connection members 103 are the same, and they are alternatively described below.

The first connector 301 includes a first connection portion 301a and a locking portion 301 b; one end of the first connecting part 301a is fixedly connected to the inner wall of the connecting ring 302 through the switching part 301 c; the locking portion 301b is detachably connected to the other end of the first connecting portion 301 a.

The adaptor 301c may be a cylindrical rod-shaped structure. One end of the adapter 301c is fixedly connected to the inner wall of the connection ring 302, and the other end of the adapter 301c extends toward the middle of the connection ring 302. It is understood that the adaptor portion 301c may be disposed in a radial direction of the connection ring 302.

In other embodiments, the adapter 301c may also be a rod-shaped structure such as a triangular prism, a quadrangular prism, a pentagonal prism, or the like.

In some specific embodiments, the first connection portion 301a may be a screw. One end of the first connecting part 301a is fixedly connected to the outer wall of the switching part 301 c; the other end of the first connection portion 301a extends in a direction away from the water stop ring 2 and protrudes out of the space surrounded by the connection ring 302. Accordingly, the locking portion 301b may be a nut. One end of the adapter part 301c, which is far away from the inner wall of the connecting ring 302, protrudes out of the limiting groove 101, and the first connecting part 301a is connected to the part of the adapter part 301c, which protrudes out of the limiting groove 101, so that the first connecting part 301a extends towards the inside of the pipeline body 1 to facilitate connection of the second connecting part 103.

The second connecting piece 103 can be one of structures such as a connecting plate and a connecting block; the second connector 103 is fixedly connected to the inner wall of the pipe body 1. The second connecting part 103 is provided with a second connecting part 103a, the second connecting part 103a is a through hole structure, and the axis of the second connecting part 103a is parallel to the axis of the pipeline body 1.

The diameter of the second connection portion 103a is equal to or slightly larger than the outer diameter of the first connection portion 301a, thereby facilitating the first connection portion 301a to pass through the second connection portion 103 a. The second connection portion 103a is coaxially disposed with the first connection portion 301a, thereby facilitating accurate insertion of the first connection portion 301a into the second connection portion 103 a. Accordingly, the locking portion 301b has an outer diameter larger than that of the second connecting portion 103 a.

During installation, when the connection ring 302 and the water stop ring 2 are inserted into the stopper groove 101, one end of the first connection portion 301a, which is away from the adapter portion 301c, passes through the second connection portion 103 a. After the end surface of the connection ring 302 away from the water stop ring 2 abuts against the end wall of the limiting groove 101, the locking portion 301b is screwed to the end of the first connection portion 301a away from the switching portion 301c, and the locking portion 301b abuts against the second connection member 103, so as to lock the first connection member 301 and the second connection member 103. Thereby, the connection ring 302 and the water stop ring 2 are fixed in the stopper groove 101.

In other embodiments, the locking portion 301b and the first connecting portion 301a can be detachably connected by snapping or the like.

As shown in fig. 2 and 3, in the embodiment, the outer wall of the connection ring 302 is further provided with a first positioning portion 303; the inner wall of the limiting groove 101 is provided with a corresponding second positioning part 101 a. When the connection ring 302 and the water stop ring 2 are inserted into the limiting groove 101, the first positioning portion 303 and the second positioning portion 101a can be used for positioning, so that the first connection member 301 and the second connection member 103 can be positioned, and the first connection portion 301a can be accurately inserted into the second connection portion 103a in the insertion process.

In some embodiments, the first positioning portion 303 may be a slider structure protruding from the outer wall of the connection ring 302; accordingly, the second positioning portion 101a is of a corresponding chute structure.

In other embodiments, the first positioning portion 303 may be a sliding groove structure; correspondingly, the second positioning portion 101a is a slider structure protruding from the inner wall of the limiting groove 101.

In the embodiment shown in fig. 7 to 9, the second connector 103 is further connected with a protection member 4. When the first connector 301 is connected to the second connector 103, the protection member 4 can protect the connection between the locking portion 301b and the first connection portion 301a, so as to isolate the connection from the internal environment of the pipe body 1. Therefore, in use, the corrosion of the gas or liquid passing through the pipeline body 1 to the joint of the locking part 301b and the first connecting part 301a is avoided, the connection strength is further ensured, and the inconvenience of disassembly, assembly and maintenance caused by the corrosion of the locking part 301b and the first connecting part 301a can also be avoided.

Specifically, the protection element 4 may be a cylindrical structure, and one end of the protection element 4 is an open structure, so that the protection element 4 is sleeved at the connection position of the first connection portion 301a and the locking portion 301 b; the other end of the protection member 4 is a closed structure. The second connecting member 103 is correspondingly provided with a positioning groove 103b at a side away from the limiting groove 101, and the opening end of the protection member 4 can be inserted into the positioning groove 103b to close the space inside the protection member 4. The positioning groove 103b may also play a role in positioning the protection member 4 when the protection member 4 is mounted.

In some embodiments, the width of the positioning slot 103b may be equal to the wall thickness of the guard 4. While the positioning groove 103b positions the protection member 4, the opening end of the protection member 4 can be tightly embedded in the positioning groove 103b, so as to extend the gap path at the connection position of the protection member 4 and the second connection member 103, that is, the path of liquid or gas entering the protection member 4, thereby effectively reducing the liquid or gas entering the protection member 4, and effectively protecting the connection position of the first connection portion 301a and the locking portion 301 b.

The outer wall of the protection member 4 is provided with a third connecting portion 401, and the third connecting portion 401 is disposed near an open end of the protection member 4. The second connecting part 103 is provided with a corresponding fourth connecting part 103c on the side away from the limiting groove 101, and the third connecting part 401 is connected with the fourth connecting part 103c to fix the protection part 4 on the second connecting part 103.

Specifically, the third connecting portion 401 has a slider structure. The fourth connecting portion 103c includes an opening groove 103c1 and a locking groove 103c2 which are communicated with each other; the third connecting portion 401 can enter the locking groove 103c2 from the opening groove 103c1 and fixedly connect with the locking groove 103c2 to fixedly connect the shielding member 4 to the second connecting member 103.

The locking groove 103c2 is an arc-shaped sliding groove structure; it will be appreciated that the locking slot 103c2 may be part of a circular ring. The locking groove 103c2 is provided inside the second link member 103, the locking groove 103c2 is provided along the side wall of the positioning groove 103b, and the locking groove 103c2 communicates with the positioning groove 103 b. The distance from the locking groove 103c2 to the bottom of the positioning groove 103b is equal to the distance from the third connecting portion 401 to the end face of the open end of the protection piece 4.

The opening groove 103c1 is provided at one end of the locking groove 103c2, and the opening groove 103c1 is provided to extend in the axial direction of the locking groove 103c2, so that the fourth connecting portion 103c has an L-shaped groove structure as a whole. The opening groove 103c1 is communicated with the positioning groove 103 b; and one end of the open groove 103c1 away from the locking groove 103c2 is communicated with the outside, so that the third connecting part 401 enters the open groove 103c1 and then enters the locking groove 103c2 from the open groove 103c 1. An end of the locking groove 103c2 away from the opening groove 103c1 may be in interference fit with the third connecting portion 401, so as to achieve a fixed connection between the third connecting portion 401 and the fourth connecting portion 103 c.

When the protection member 4 is mounted, the third connection portion 401 of the protection member 4 is aligned with the opening groove 103c1, and then the protection member 4 is inserted into the positioning groove 103b, and the third connection portion 401 passes through the opening groove 103c1 and then enters the locking groove 103c 2. Rotating the guard 4 so that the third connecting part 401 slides in the locking groove 103c2 and gradually moves toward an end away from the open groove 103c 1; the third connecting portion 401 is gradually interference-fitted with the locking groove 103c2, so that the protection member 4 is fixedly mounted on the second connecting member 103 to protect the connection between the first connecting portion 301a and the locking portion 301 b.

In other embodiments, the third connection portion 401 and the fourth connection portion 103c may be fixedly connected by a snap connection or the like.

As shown in fig. 9, when the inserting portion 102 of one pipe body 1 is inserted into the limiting groove 101 of the other pipe body 1, the inserting portion 102 abuts against the adapting portion 301c of the first connecting member 301. Therefore, in the pipe jacking process, the axial thrust applied to the insertion part 102 acts on the adapter part 301 c; meanwhile, the axial thrust is also transmitted to the abutting part of the connecting ring 302 and the end wall of the limiting groove 101, which is equivalent to the axial thrust received by the inserting part 102 acting on the end wall of the limiting groove 101, that is, the inserting part 102 abuts on the end wall of the limiting groove 101.

As shown in fig. 6, in the same pipe body 1, at least one abutting groove 102b is provided on one side of the insertion part 102 away from the inside of the pipe body 1, the number of the abutting grooves 102b is equal to the number of the connecting assemblies 3, and the abutting grooves 102b are provided in one-to-one correspondence with the adaptor parts 301c in the connecting assemblies 3. The shape of the abutting groove 102b matches the shape of the adaptor portion 301 c. That is, when the mating part 102 abuts against the adaptor part 301c, the abutment groove 102b abuts against the adaptor part 301c, and the inner wall of the abutment groove 102b is attached to the outer wall of the adaptor part 301 c. In this embodiment, the insertion part 102 is provided with four abutting grooves 102 b.

The insertion part 102 is further provided with an oil filling opening 102a at a position corresponding to the water stop ring 2, and a sealing piece 102c is detachably connected to the oil filling opening 102 a. In the pipe jacking construction process, lubricating oil can be injected into the water stop ring 2 through the oil injection port 102a, so that the friction force between the water stop ring 2 and the insertion part 102 is reduced, and the water stop ring 2 is further prevented from being damaged. After the lubrication oil injection is completed, the oil filling port 102a may be closed by the closing member 102 c.

In some embodiments, the closure 102c and the oil filling port 102a can be detachably connected by screwing, interference fit connection, or the like.

In the embodiment, the connecting assembly 3 and the second connecting member 103 can be made of steel structures, so that the structural strength of the connecting assembly can be improved, and the acting force applied in the pipe jacking process can be borne.

As shown in fig. 1 and 9, the pipe connection structure further includes a sealing ring 5, and the sealing ring 5 is sleeved on the insertion part 102. The inner wall of the sealing ring 5 is attached to the outer wall of the insertion part 102; the outer diameter of the seal ring 5 is equal to the outer diameter of the pipe body 1. When the two sections of pipeline bodies 1 are connected, the sealing ring 5 is clamped at the joint of the two sections of pipeline bodies 1; thereby, the sealing property at the joint of the two pipe bodies 1 is enhanced. Specifically, one end face of the sealing ring 5 abuts against the end face of one end of the pipeline body 1, which is provided with the limiting groove 101, and abuts against the water stop ring 2 located in the limiting groove 101. The other end face of the sealing ring 5 is abutted against the end face of the other end of the pipeline body 1 provided with the inserting part 102.

In the embodiment, the pipeline connecting structure further includes a limiting ring 6, and the limiting ring 6 is sleeved outside the joint of the two pipeline bodies 1. The position setting that spacing ring 6 corresponds sealing ring 5, and the inner wall of spacing ring 6 laminates mutually with the outer wall of sealing ring 5 to restriction sealing ring 5 takes place the ascending deformation of radial direction or removes, in order to ensure the leakproofness of two pipeline body 1 junctions. In an embodiment, two ends of the limiting ring 6 may be fixedly connected to the outer wall of the pipeline body 1 at the corresponding position by means of bolt connection, welding, and the like.

As shown in fig. 10, the outer wall of the limiting ring 6 is in a conical surface structure. In the spacing ring 6, the smaller end of the conical surface opening is arranged close to the inner end of the construction layer, and the larger end of the conical surface opening is arranged relatively close to the outer end of the construction layer, so that the resistance of pipe jacking operation is reduced.

In the construction process, the first positioning portion 303 of the connection ring 302 may correspond to the second positioning portion 101a of the limiting groove 101. Then, inserting the connecting ring 302 and the water stop ring 2 into the limiting groove 101; meanwhile, the first connection portion 301a is inserted into the second connection portion 103a, and after the connection ring 302 and the water stop ring 2 are inserted in place, the locking portion 301b is locked to the first connection portion 301a, so that the connection assembly 3 and the water stop ring 2 are fixedly mounted. Then, the guard 4 is mounted on the second connector 103. After the sealing ring 5 is sleeved on the inserting part 102 of the other pipeline body 1, the inserting part 102 of the pipeline body 1 is gradually inserted into the limiting groove 101, so that the end surface of the inserting part 102 abuts against the corresponding adapter part 301 c; the sealing ring 5 is sandwiched between the two pipe bodies 1. The limiting ring 6 can be fixedly arranged on the outer wall of the previous pipeline body 1 in advance, and after the other pipeline body 1 is inserted, the limiting ring 6 is fixedly connected with the other pipeline body 1; then, the pipe jacking operation can be continued.

In the pipe jacking construction, the pipeline connecting structure provided by the application can effectively avoid the problems of displacement and fracture of the water stop ring 2, thereby ensuring the construction quality.

EXAMPLE III

The embodiment also provides a pipeline transmission system, wherein two adjacent pipeline bodies 1 are connected through the pipeline connecting structure provided in the first embodiment or the second embodiment. The pipeline transmission system can be used for transmitting fluid substances such as gas, water and the like.

In the construction process, the problem that the water stop ring 2 at the joint of the two sections of pipeline bodies 1 is displaced or broken can be effectively avoided. Meanwhile, the sealing performance of the joint of the two adjacent sections of pipeline bodies 1 can be ensured, and the construction quality of the pipeline transmission system can be further ensured.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. A pipeline connecting structure is used for connecting two adjacent sections of pipeline bodies and is characterized in that a limiting groove is formed in the inner wall of one end of each pipeline body, and an inserting part is formed in the other end of each pipeline body;

the pipeline connecting structure further comprises a water stopping ring, the water stopping ring is limited and fixed in the limiting groove, one end face of the water stopping ring is connected with the pipeline body, and the end face of the water stopping ring is perpendicular to the axis of the pipeline body;

when two adjacent sections of the pipeline bodies are connected, the inserting part of one section of the pipeline body is inserted into the limiting groove of the other section of the pipeline body, the outer wall of the inserting part is attached to the inner wall of the water stop ring, and the inserting part is abutted to the end wall of the limiting groove.

2. The pipe connecting structure according to claim 1, wherein the water stop ring is connected to the pipe body by a connecting member; the connecting assembly is connected with the end face of the water stop ring and is connected with the pipeline body; the connecting assembly and the water stop ring are inserted into the limiting groove together, and the connecting assembly abuts against the end wall of the limiting groove;

the inserting part is abutted to the end wall of the limiting groove through the connecting component, and the inserting part is abutted to the connecting component.

3. The pipe connection according to claim 2, wherein the coupling assembly comprises a coupling ring and at least one first coupling member disposed on an inner wall of the coupling ring;

a corresponding second connecting piece is arranged on the inner wall of the pipeline body, and the first connecting piece is connected with the second connecting piece;

the end face of the water stop ring is connected to one end face of the connecting ring; the insertion part is abutted against the first connecting piece.

4. The pipe connecting structure according to claim 3, wherein the first connecting member includes a first connecting portion and a locking portion which are provided separately; the second connecting piece is provided with a second connecting part;

one end of the first connecting part is fixedly connected with the connecting ring, and the other end of the first connecting part is inserted into the second connecting part and then is connected with the locking part in a locking manner.

5. The pipe connecting structure according to claim 4, wherein a shielding member is further connected to a side of the second connecting member away from the limiting groove, and the shielding member is used for isolating a connection portion of the first connecting portion and the locking portion from the outside.

6. The pipe connecting structure according to any one of claims 2 to 5, wherein the connecting member is provided with a first positioning portion on an outer wall thereof;

a second positioning part is arranged in the limiting groove and is arranged along the axial direction of the pipeline body;

when the connecting assembly is inserted into the limiting groove, the first positioning portion is connected with the second positioning portion in an inserting mode.

7. The pipe connecting structure according to claim 1, wherein an oil filling port is provided at a position of the insertion portion corresponding to the water stop ring, and a closing member is detachably attached to the oil filling port.

8. The pipe connection structure according to claim 1, wherein a sealing ring is further sleeved on the insertion part; the inner wall of the sealing ring is attached to the outer wall of the insertion part, and the outer diameter of the sealing ring is equal to that of the pipeline body;

when two adjacent pipeline bodies are connected, the sealing ring is clamped at the joint of the two pipeline bodies.

9. The pipeline connecting structure according to claim 8, further comprising a limiting ring, wherein the limiting ring is sleeved outside the joint of two adjacent pipeline bodies;

the limiting ring is arranged corresponding to the sealing ring, and the inner wall of the limiting ring is attached to the outer wall of the sealing ring.

10. A pipe transfer system comprising the pipe connecting structure according to any one of claims 1 to 9.

Images