CN111503393B

CN111503393B - Municipal administration water supply and drainage pipeline connection structure

Info

Publication number: CN111503393B
Application number: CN202010299386.6A
Authority: CN
Inventors: 赵正印; 刘怀胜; 李岩; 贾丽; 王绍征
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2022-04-19
Anticipated expiration: 2040-04-16
Also published as: CN111503393A

Abstract

The invention discloses a municipal water supply and drainage pipeline connecting structure which comprises a connecting body and a sealing unit arranged between the connecting body and a pipeline, wherein a through hole for passing fluid is formed in the center of the connecting body along the axial direction, a connecting flange is arranged at one end of the connecting body, an axial mounting hole is formed in the center of the other end of the connecting body, and the pipeline is mounted in the mounting hole and is in sliding fit with the connecting body. The invention is used in pairs, has low requirement on the distance precision between the end faces of two connected pipelines, is particularly suitable for municipal pipeline emergency operation, and has the advantages of high operation efficiency, quick connection, high reliability, low labor intensity and no need of disassembling the pipelines. A conical pressing sleeve is arranged between the movable flange and the pipeline, and the pressing sleeve is tightly tensioned between the pipeline and the movable flange through a set screw so as to fixedly connect the pipeline and the movable flange. The invention does not need to use special tools during installation, and has low requirement on the operating skill of operators.

Description

Municipal administration water supply and drainage pipeline connection structure

Technical Field

The invention relates to the technical field of water supply and drainage pipeline connection, in particular to a municipal water supply and drainage pipeline connection structure.

Background

Municipal construction is an important content of municipal activities, and aims to prosper city economy, facilitate the production and living environment of citizens and promote the development of material culture and spiritual culture of cities.

At present, the connection of water supply and drainage pipelines in municipal construction and construction needs to be processed in a configuration mode at a connecting end, such as welding a flange plate, then fixing the flange plate through bolts, or connecting the flange plate and the end through a pipe hoop after threads are machined. These machining methods require a high skill of an operator, increase the number of machining processes, and extend the working time, resulting in low working efficiency. These connections all result in a weakening of the water supply and drainage pipeline at the processing site or risk of leakage. These connections are detrimental to municipal activities requiring high time and efficiency, such as emergency treatment of municipal drainage pipelines. When municipal administration water supply and drainage pipeline speedily carries out rescue work, because the pipeline has generally all been fixed, it is very inconvenient to dismantle, if carry out welded flange and processing screw thread, often need spend a lot of time and carry out the dismouting of pipeline, very big influence the efficiency of arranging the danger.

Disclosure of Invention

The invention aims to provide a connecting structure of a municipal water supply and drainage pipeline, which is used for improving the efficiency of the municipal water supply and drainage pipeline in connection.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a municipal administration water supply and drainage pipeline connection structure, its includes the connector and sets up the sealed unit between connector and pipeline, the connector center is equipped with the through-hole that is used for passing through the fluid along the axial, connector one end is flange, and the other end center is equipped with axial mounting hole, the pipe installation just is sliding fit with the connector in the mounting hole.

Furthermore, the other end of the connecting body is a fixed flange, and the sealing unit comprises a movable flange sleeved on the pipeline, an annular sealing ring A, a stud and a nut screwed at the end part of the stud; the movable flange sets up the one side of keeping away from flange at mounting flange, movable flange and pipeline are sliding fit, mounting flange is close to central point and movable flange neck to the mouth cooperation, sealing washer first is located this tang, the first material of sealing washer is elastic material, first cover of sealing washer is on the pipeline, pass through stud and nut fixed connection between movable flange and the mounting flange.

Furthermore, a section of conical hole concentric with the pipeline is arranged on one side, away from the sealing ring A, of the movable flange at a position close to the center, the diameter of the conical hole is gradually reduced from outside to inside, a pressing sleeve matched with the conical hole is arranged in the conical hole, the outer wall of the pressing sleeve is conical, the inner wall of the pressing sleeve is a through hole, an axial opening is formed in the outer wall of the pressing sleeve, and the opening is communicated with two end faces of the pressing sleeve; the pressing sleeve is sleeved on the pipeline and is in sliding fit with the pipeline when not stressed; when the pressing sleeve moves towards the fixed flange along the axial direction, the pressing sleeve is tightly tensioned in the conical hole under the action of the conical hole, and the pipeline is fixedly connected with the movable flange.

Furthermore, an axial compression screw hole is formed in the matching position of the compression sleeve and the movable flange, and the compression screw hole is formed in the large-diameter end of the compression sleeve; the compaction screw hole is divided into two parts by the movable flange and the compaction sleeve, one part of the compaction screw hole, which is positioned on the movable flange, is provided with threads, one part of the compaction screw hole, which is positioned on the compaction sleeve, is a blind hole, and the length of the threads is greater than the depth of the blind hole; and a set screw is arranged in the compression screw hole, is in threaded fit with the movable flange and is in sliding fit with the compression sleeve.

Furthermore, a stepped hole concentric with the pipeline is arranged on the end face of the movable flange far away from the fixed flange, the diameter of the stepped hole is larger than the major diameter of the tapered hole, and the bottom of the stepped hole is communicated with the tapered hole; this shoulder hole is equipped with two gaskets and round nut outside from the inside in proper order, is equipped with the sealing washer second of cover on the pipeline outer wall between two gaskets, sealing washer second is elastic material, round nut is threaded connection with the loose flange, round nut compresses tightly sealing washer second in the shoulder hole through two gaskets.

Furthermore, an axial disassembling screw hole is formed in the matching position of the pressing sleeve and the movable flange, and the disassembling screw hole is formed in the large-diameter end of the pressing sleeve; the disassembly screw hole is divided into two parts by the movable flange and the pressing sleeve, one part of the disassembly screw hole, which is positioned on the pressing sleeve, is provided with threads, one part of the disassembly screw hole, which is positioned on the movable flange, is a blind hole, and the length of the threads is greater than the depth of the blind hole; and a set screw is arranged in the disassembling screw hole, and the set screw is in sliding fit with the movable flange and is in threaded fit with the pressing sleeve.

Furthermore, a waterline is arranged on the sealing end face of the connecting flange.

The invention has the positive effects that:

the invention is used in pairs and is respectively arranged at the end parts of two pipelines to be connected. The two invention are fixedly connected through bolts and then respectively connected with corresponding pipelines. The pipeline emergency connector is provided with the connector, and the connector can slide on the pipeline to adjust the position before being fixed with the pipeline, so that the distance between the end part of the pipeline and the connecting flange on the connector can be adjusted, the requirement on the precision of the distance between the end surfaces of the two connected pipelines is not high, the pipeline emergency connector is particularly suitable for municipal pipeline emergency operation, the efficiency is high during operation, the connection is rapid, the reliability is high, the labor intensity is low, and the pipeline does not need to be disassembled. The movable flange arranged at the rear part of the connector is sealed with the connector through a sealing ring A, the movable flange is fixedly connected with the connector through a stud and a nut, the sealing and the connection are simple, and the operation is easy. A conical pressing sleeve is arranged between the movable flange and the pipeline, and the pressing sleeve is tightly tensioned between the pipeline and the movable flange through a set screw, so that the pipeline is fixedly connected with the movable flange. The outside of the pressing sleeve is provided with a sealing ring B, so that the pressing sleeve is prevented from being corroded to influence the disassembly, assembly and connection reliability. The invention does not need to use special tools during installation, and has low requirement on the operating skill of operators.

Drawings

FIG. 1 is a left side view of the present invention;

FIG. 2 is a schematic structural view taken along section A-A in FIG. 1;

FIG. 3 is an enlarged view of section I of FIG. 2;

in the figure, 1, a pipeline; 2. pressing the screw hole; 3. a movable flange; 4. a stud; 5. a fixed flange; 6. a linker; 7. a connecting flange; 8. a first sealing ring; 9. disassembling the screw hole; 10. a waterline; 11. a compression sleeve; 12. a sealing ring B; 13. a gasket; 14. a round nut; 15. opening the gap; 16. and (7) installing holes.

Detailed Description

As shown in fig. 1 to 3, the municipal water supply and drainage pipeline connecting structure comprises a circular connecting body 6 and a sealing unit arranged between the connecting body 6 and the pipeline 1, wherein a through hole for passing a fluid is axially formed in the center of the connecting body 6, the right end of the connecting body 6 is a circular connecting flange 7, an axial mounting hole 16 is formed in the center of the left end of the connecting body 6, and the pipeline 1 is inserted into the mounting hole 16 and is in sliding fit with the connecting body 6. The pipeline connecting device is used in pairs, the connecting bodies 6 can axially slide along the pipeline 1, so that the distance between the end part of the pipeline 1 and the connecting flange 7 is adjustable, the requirement on the precision of the distance between the end surfaces of the two connected pipelines 1 is not high, and the pipeline connecting device is particularly suitable for emergency rescue of the pipeline 1. When the pipeline 1 leaks, the leaked pipeline 1 is only required to be circularly cut along two sides of a leakage point, the pipeline 1 is divided into two sections, then two sets of the pipeline 1 are oppositely and respectively installed on the two sections of disconnected pipelines 1, then a rubber sealing ring is added between the two opposite connecting flanges 7, the two connecting flanges 7 are connected by using bolts, and finally the pipeline 1 is sealed by respective sealing units, so that the emergency operation of the leaked pipeline 1 can be finished, and the operation efficiency is high, the connection is rapid, and the reliability is high.

The left end of the connecting body 6 is a circular fixing flange 5, and six threaded holes are uniformly distributed in the fixing flange 5 along the circumferential direction. The sealing unit comprises a circular movable flange 3 sleeved on the pipeline 1, an annular sealing ring A8, a double-end stud 4 and a nut screwed at the end part of the double-end stud 4. The movable flange 3 is located the 5 left sides of mounting flange, six through-holes and six screw hole one-to-one are equipped with to movable flange 3 along the circumferencial direction equipartition. The neck of the movable flange 3 is positioned at the right side of the movable flange and is cylindrical. The movable flange 3 is in sliding fit with the pipeline 1, the left end of the fixed flange 5 is close to the central part and the right end of the neck of the movable flange 3 is in spigot fit, the movable flange 3 is provided with an inner spigot, the fixed flange 5 is provided with an outer spigot, and the sealing ring A8 is positioned at the bottom of the inner spigot. The sealing ring A8 is made of rubber, and the sealing ring A8 is sleeved on the pipeline 1 and is compressed by the end face of the outer spigot. One end of the stud bolt 4 is screwed in the threaded hole of the fixed flange 5, and the other end of the stud bolt passes through the through hole on the movable flange 3 and is fastened by a nut. When the movable flange 3 and the fixed flange 5 are tightened by the six studs 4, the sealing ring A8 is compressed in a closed space formed by the fixed flange 5, the movable flange 3 and the pipeline 1, and the sealing between the inside and the outside of the pipeline 1 is realized by the elasticity of the sealing ring A8.

The left side of the movable flange 3 is provided with a section of conical hole concentric with the pipeline 1 at a position close to the center, the diameter of the conical hole is gradually reduced from outside to inside, a conical pressing sleeve 11 matched with the conical hole is arranged in the conical hole, the outer wall of the pressing sleeve 11 is conical, the inner wall of the pressing sleeve 11 is a through hole matched with the pipeline 1, the pressing sleeve 11 is provided with an axial opening 15, and the opening 15 is communicated with two end faces of the pressing sleeve 11. The pressing sleeve 11 is sleeved on the pipeline 1 and is in sliding fit with the pipeline 1 when not stressed, and when the pressing sleeve 11 moves rightwards, under the action of the tapered hole, the pressing sleeve 11 is tensioned in the tapered hole and enables the pipeline 1 to be fixedly connected with the movable flange 3.

The matched part of the pressing sleeve 11 and the movable flange 3 is provided with two axial pressing screw holes 2, the pressing screw holes 2 are separated by 180 degrees, and the pressing screw holes 2 are positioned at the left end of the pressing sleeve 11. The pressing screw hole 2 is divided into two parts by the movable flange 3 and the pressing sleeve 11, one part of the pressing screw hole 2, which is positioned on the movable flange 3, is provided with threads, one part of the pressing screw hole 2, which is positioned on the pressing sleeve 11, is a blind hole, and the length of the threads is greater than the depth of the blind hole. And a set screw is arranged in the compression screw hole 2, is in threaded fit with the movable flange 3 and is in sliding fit with the compression sleeve 11. When the set screw is screwed, the bottom of the set screw is pressed against the bottom of the blind hole, and when the set screw is screwed continuously, the set screw drives the pressing sleeve 11 to move rightwards together under the action of the thread, so that the pipeline 1 is fixedly connected with the movable flange 3.

The left end face of the movable flange 3 is provided with a stepped hole concentric with the pipeline 1, the diameter of the stepped hole is larger than the major diameter of the tapered hole, and the bottom of the stepped hole is communicated with the tapered hole. The shoulder hole is equipped with two circular shape gaskets 13 and round nut 14 from inside to outside in proper order, round nut 14 material is brass. Be equipped with between two gaskets 13 and overlap sealing washer second 12 on pipeline 1 outer wall, sealing washer second 12 material is rubber, round nut 14 is threaded connection with movable flange 3, round nut 14 compresses tightly sealing washer second 12 in the shoulder hole through two gaskets 13 to realize movable flange 3 inside and outside sealed, prevent that pressing sleeve 11 and holding screw in the bell mouth from influencing the reliability of dismouting and connection because of the corrosion.

The matched position of the pressing sleeve 11 and the movable flange 3 is provided with two axial disassembling screw holes 9, the disassembling screw holes 9 are arranged at intervals of 180 degrees, the disassembling screw holes 9 and the pressing screw holes 2 are arranged at intervals of 90 degrees, the disassembling screw holes 9 are arranged at the left end of the pressing sleeve 11, and the disassembling screw holes 9 are divided into two parts by the movable flange 3 and the pressing sleeve 11. And as opposed to the compression screw hole 2, a part of the disassembly screw hole 9, which is positioned on the compression sleeve 11, is provided with a thread, a part of the disassembly screw hole, which is positioned on the movable flange 3, is a blind hole, and the length of the thread is greater than the depth of the blind hole. And a set screw is also arranged in the disassembling screw hole 9, and is in sliding fit with the movable flange 3 and in threaded fit with the pressing sleeve 11. When the pipe fitting is disassembled, the set screw is rotated, the pressing sleeve 11 moves leftwards under the action of the threads, a gap is formed between the pipe 1 and the pressing sleeve 11, then the nut at the end part of the stud 4 is loosened, and then the pipe fitting is disassembled from the pipe 1.

A waterline 10 is arranged on the sealing end face of the connecting flange 7. The water line 10 serves to enhance the sealing between the two opposing attachment flanges 7.

When the distance between two connected pipelines 1 is too far, a short connecting pipe with flanges at two ends can be additionally arranged between two opposite connecting flanges 7 for connection.

The connector 6, the movable flange 3, the stud 4 and the nut are all made of steel, and the surfaces of the connector, the movable flange and the stud are subjected to zinc plating and corrosion prevention treatment. When applied to an underground environment, the exposed portions of the surface are painted with an asphalt paint after installation.

The actual installation process of the invention is as follows:

1. performing circular cutting on two sides of a leakage point of the leaked pipeline 1 (the step is needed when emergency treatment is performed on the pipeline due to leakage);

2. the expected connection parts of the outer walls of the two pipelines 1 are cleaned;

3. the two sets of the invention are respectively sleeved on two disconnected sections of pipelines 1 oppositely, the distance between the pipelines 1 and the connecting flanges 7 is adjusted, then rubber sealing rings are added between the two opposite connecting flanges 7, and the two connecting flanges 7 are fastened by using fasteners;

4. the nuts at the end parts of the double-end studs 4 are screwed down, so that the movable flange 3 and the fixed flange 5 tightly press the sealing ring A8;

5. screwing a set screw in the compaction screw hole to move the compaction sleeve 11 rightwards, and fixedly connecting the pipeline 1 with the movable flange 3;

6. and (5) screwing the round nut 14 to tightly press the sealing ring B.

Claims

1. The municipal water supply and drainage pipeline connecting structure is characterized by comprising a connecting body (6) and a sealing unit arranged between the connecting body (6) and a pipeline (1), wherein a through hole for passing fluid is formed in the center of the connecting body (6) along the axial direction, a connecting flange (7) is arranged at one end of the connecting body (6), an axial mounting hole (16) is formed in the center of the other end of the connecting body (6), and the pipeline (1) is mounted in the mounting hole (16) and is in sliding fit with the connecting body (6); the other end of the connecting body (6) is provided with a fixed flange (5), and the sealing unit comprises a movable flange (3) sleeved on the pipeline (1), an annular sealing ring A (8), a stud (4) and a nut screwed at the end part of the stud (4); the movable flange (3) is arranged on one side, far away from the connecting flange (7), of the fixed flange (5), the movable flange (3) is in sliding fit with the pipeline (1), the position, close to the center, of the fixed flange (5) is matched with the neck of the movable flange (3) through a spigot, the sealing ring A (8) is located in the spigot, the sealing ring A (8) is made of an elastic material, the sealing ring A (8) is sleeved on the pipeline (1), and the movable flange (3) is fixedly connected with the fixed flange (5) through the stud (4) and the nut; the movable flange (3) is provided with a section of conical hole concentric with the pipeline (1) at a position close to the center on one side far away from the sealing ring A (8), the diameter of the conical hole is gradually reduced from outside to inside, a pressing sleeve (11) matched with the conical hole is arranged in the conical hole, the outer wall of the pressing sleeve (11) is conical, the inner wall of the pressing sleeve is a through hole, the outer wall of the pressing sleeve (11) is provided with an axial opening (15), and the opening (15) is communicated with two end faces of the pressing sleeve (11); the pressing sleeve (11) is sleeved on the pipeline (1) and is in sliding fit with the pipeline (1) when not stressed; when the pressing sleeve (11) moves towards the fixed flange (5) along the axial direction, under the action of the tapered hole, the pressing sleeve (11) is tensioned in the tapered hole and fixedly connects the pipeline (1) and the movable flange (3); an axial disassembling screw hole (9) is formed in the matching position of the pressing sleeve (11) and the movable flange (3), and the disassembling screw hole (9) is formed in the large-diameter end of the pressing sleeve (11); the disassembly screw hole (9) is divided into two parts by the movable flange (3) and the pressing sleeve (11), one part of the disassembly screw hole (9) on the pressing sleeve (11) is provided with threads, one part on the movable flange (3) is a blind hole, and the length of the threads is greater than the depth of the blind hole; a set screw is arranged in the disassembling screw hole (9), and is in sliding fit with the movable flange (3) and in threaded fit with the pressing sleeve (11); the end face of the movable flange (3) far away from the fixed flange (5) is provided with a stepped hole concentric with the pipeline (1), the diameter of the stepped hole is larger than the major diameter of the tapered hole, and the bottom of the stepped hole is communicated with the tapered hole; the stepped hole is sequentially provided with two gaskets (13) and a round nut (14) from inside to outside, a sealing ring B (12) sleeved on the outer wall of the pipeline (1) is arranged between the two gaskets (13), the sealing ring B (12) is made of elastic materials, the round nut (14) is in threaded connection with the movable flange (3), and the round nut (14) tightly presses the sealing ring B (12) in the stepped hole through the two gaskets (13); an axial pressing screw hole (2) is formed in the matching position of the pressing sleeve (11) and the movable flange (3), and the pressing screw hole (2) is formed in the large-diameter end of the pressing sleeve (11); the pressing screw hole (2) is divided into two parts by the movable flange (3) and the pressing sleeve (11), one part of the pressing screw hole (2) on the movable flange (3) is provided with a thread, one part on the pressing sleeve (11) is a blind hole, and the length of the thread is greater than the depth of the blind hole; and a set screw is arranged in the compression screw hole (2), is in threaded fit with the movable flange (3) and is in sliding fit with the compression sleeve (11).

2. The municipal water supply and drainage pipeline connecting structure according to claim 1, wherein a waterline (10) is provided on the sealed end surface of the connecting flange (7).