CN212510047U

CN212510047U - Municipal administration water supply and drainage pipeline connection structure

Info

Publication number: CN212510047U
Application number: CN202021121795.9U
Authority: CN
Inventors: 刁展城; 蓝海艺; 李志军; 周德富; 钟致鹏; 黄小葵
Original assignee: Guangdong Zhongtai Engineering Survey And Design Co ltd
Current assignee: Guangdong Zhongtai Engineering Survey And Design Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-02-09
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses a municipal administration water supply and drainage pipe connection structure, including first steel pipe, the right-hand member welding of first steel pipe has first flange, there is the second flange on the right side of first flange through bolted connection, the main activity pipe of right side fixedly connected with of second flange, the inner chamber right-hand member fixed mounting of main activity pipe has the snap ring, the inner chamber of main activity pipe has cup jointed vice activity pipe, the sealing ring has been cup jointed on the surface of vice activity pipe, the right-hand member fixedly connected with third flange of vice activity pipe, there is the fourth flange on the right side of third flange through bolted connection. This structure is through replacing the damaged steel pipe of segment, has avoided changing the loaded down with trivial details of whole steel pipe, and this structure has certain flexible ability simultaneously, can easily aim at original pipeline, and the sealing washer of junction also can easily be put into simultaneously, and in the installation, the both ends of bolt pulling structure, vice expansion pipe can extrude the sealing ring, has good leakproofness.

Description

Municipal administration water supply and drainage pipeline connection structure

Technical Field

The utility model relates to a pipe connection technical field specifically is a municipal administration water supply and drainage pipeline connection structure.

Background

With the improvement of the quality of life of people, people can not leave pipelines more and more, the life of the people is as small as a line pipeline laid by home furnishings and as large as a municipal water supply and drainage pipeline. A large number of pipelines are laid under cities where people live every day, and guarantee is provided for our lives.

The pipeline buried underground is likely to break under the influence of various natural disasters, and the whole steel pipe may need to be replaced to enable the pipeline to be recovered for use due to the breakage of a small section of steel pipe, so that the whole steel pipe is high in cost, complex in installation, time-consuming and labor-consuming, and meanwhile, the steel pipe needs to be installed on a fixed length, and the sealing performance of a joint is easily poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a municipal administration water supply and drainage pipeline connection structure to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a municipal administration water supply and drainage pipeline connection structure, includes first steel pipe, the right-hand member welding of first steel pipe has first flange, there is the second flange on the right side of first flange through bolted connection, the main expansion pipe of right side fixedly connected with of second flange, the inner chamber right-hand member fixed mounting of main expansion pipe has the snap ring, the inner chamber of main expansion pipe has cup jointed vice expansion pipe, the sealing ring has been cup jointed on the surface of vice expansion pipe, the right-hand member fixedly connected with third flange of vice expansion pipe, there is the fourth flange on the right side of third flange through bolted connection, the right side welding of fourth flange has the second steel pipe.

Preferably, the inner diameter of the right end of the main movable pipe is gradually reduced, the inner diameter of the left end of the auxiliary movable pipe is gradually enlarged, and the maximum outer diameter of the auxiliary movable pipe is larger than the minimum inner diameter of the clamping ring.

Preferably, the first flange, the second flange, the third flange and the fourth flange are of the same specification, the connecting surface of the flanges is provided with a sealing groove matched with the connecting surface of the flanges, and a sealing ring with good elasticity is placed in the sealing groove.

Preferably, the number of the connecting bolts of the first flange, the second flange, the third flange and the fourth flange is six.

Preferably, the sealing ring is a wide rubber ring with a flat section, and the first steel pipe and the second steel pipe are made of weldable ductile iron.

Preferably, the pipe walls of the first steel pipe, the second steel pipe, the main movable pipe and the auxiliary movable pipe are all in threaded connection with U-shaped screws, and the lower ends of all the U-shaped screws are all in threaded connection with the supporting plate.

Advantageous effects

The utility model provides a municipal administration water supply and drainage pipeline connection structure possesses following beneficial effect:

1. this municipal administration water supply and drainage pipeline connection structure through having set up main movable tube and vice movable tube, has certain flexible ability, can easily aim at original pipeline, and the sealing washer of junction also can easily be put into simultaneously, in the installation, through the main movable tube of bolt pulling and vice movable tube relative motion, vice movable tube extrudees the sealing ring, has good leakproofness.

2. This municipal administration water supply and drainage pipeline connection structure replaces through the steel pipe to the segment damage, has avoided changing the loaded down with trivial details of whole steel pipe, has simple installation, practices thrift the cost, and the characteristics that the work load is little connect individual section steel pipe in same backup pad with U type screw simultaneously, have guaranteed that the atress of steel pipe is even.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the front cross-sectional structure of the main movable tube and the auxiliary movable tube of the present invention;

fig. 3 is a side view of the first flange of the present invention.

In the figure: the sealing structure comprises a first steel pipe 1, a first flange 2, a second flange 3, a main movable pipe 4, a clamping ring 5, an auxiliary movable pipe 6, a sealing ring 7, a third flange 8, a fourth flange 9, a second steel pipe 10, a sealing groove 11, a sealing ring 12, a U-shaped screw 13 and a supporting plate 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a municipal administration water supply and drainage pipeline connecting structure comprises a first steel pipe 1, a first flange 2 is welded at the right end of the first steel pipe 1, a second flange 3 is connected at the right side of the first flange 2 through bolts, a main movable pipe 4 is fixedly connected at the right side of the second flange 3, a snap ring 5 is fixedly installed at the right end of the inner cavity of the main movable pipe 4, an auxiliary movable pipe 6 is sleeved at the inner cavity of the main movable pipe 4, the inner diameter of the right end of the main movable pipe 4 is gradually reduced, the inner diameter of the left end of the auxiliary movable pipe 6 is gradually enlarged, the maximum outer diameter of the auxiliary movable pipe 6 is larger than the minimum inner diameter of the snap ring 5, a sealing ring 7 is sleeved on the outer surface of the auxiliary movable pipe 6, the sealing ring 7 is a wide rubber ring with a flat section, a third flange 8 is fixedly connected at the right end of the auxiliary movable pipe 6, a fourth flange 9 is connected at the right side of, the material of first steel pipe 1 and second steel pipe 10 is weldable nodular cast iron, and this municipal administration water supply and drainage pipe connection structure has certain flexible ability through having set up main movable pipe and vice movable pipe, can easily aim at original pipeline, and the sealing washer of junction also can easily be put into simultaneously, in the installation, through main movable pipe of bolt pulling and vice movable pipe motion in opposite directions, and vice movable pipe extrudees the sealing ring, has good leakproofness.

The pipe walls of the first steel pipe 1, the second steel pipe 10, the main movable pipe 4 and the auxiliary movable pipe 6 are all connected with U-shaped screws 13 in a threaded manner, and the lower ends of all the U-shaped screws 13 are in threaded connection with the supporting plate 14, the first flange 2, the second flange 3, the third flange 8 and the fourth flange 9 have the same specification, the connecting surfaces of the flanges are provided with adaptive sealing grooves 11, sealing rings 12 with good elasticity are arranged in the sealing grooves 11, the connecting bolts of the first flange 2, the second flange 3, the third flange 8 and the fourth flange 9 are six, the municipal water supply and drainage pipeline connecting structure avoids the complexity of replacing the whole steel pipe by replacing the damaged steel pipe of the small section, has the characteristics of simple and convenient installation, cost saving and small workload, meanwhile, the U-shaped screws are used for connecting the steel pipes in the sections to the same supporting plate, so that the steel pipes are uniformly stressed.

The working principle is as follows: find the damaged steel pipe, cut the damaged section, weld first flange 2 and fourth flange 9 respectively with the cutting end of steel pipe after will cutting, take out connecting device, aim at first flange 2 with second flange 3, third flange 8 aims at fourth flange 9, put into sealing washer 12 in seal groove 11, because main movable tube 4 and vice movable tube 6, certain flexible ability has, can easily aim at original pipeline, the sealing washer 12 of junction also can easily be put into simultaneously, after having connected with the bolt, twist the bolt, make flange joint closely combine, vice movable tube 6 extrudees sealing ring 7 simultaneously, make sealing ring 7 and snap ring 5 closely combine, finally, fix U type screw 13 on every section pipeline, fix four U type screws 13 on backup pad 14 with the nut again, the atress of steel pipe has been guaranteed evenly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a municipal administration water supply and drainage pipeline connection structure, includes first steel pipe (1), its characterized in that: the right-hand member welding of first steel pipe (1) has first flange (2), there is second flange (3) on the right side of first flange (2) through bolted connection, the main expansion pipe (4) of right side fixedly connected with of second flange (3), the inner chamber right-hand member fixed mounting of main expansion pipe (4) has snap ring (5), vice expansion pipe (6) have been cup jointed to the inner chamber of main expansion pipe (4), sealing ring (7) have been cup jointed on the surface of vice expansion pipe (6), the right-hand member fixedly connected with third flange (8) of vice expansion pipe (6), there is fourth flange (9) on the right side of third flange (8) through bolted connection, the right side welding of fourth flange (9) has second steel pipe (10).

2. The municipal water supply and drainage pipeline connecting structure according to claim 1, wherein: the inner diameter of the right end of the main movable pipe (4) is gradually reduced, the inner diameter of the left end of the auxiliary movable pipe (6) is gradually enlarged, and the maximum outer diameter of the auxiliary movable pipe (6) is larger than the minimum inner diameter of the clamping ring (5).

3. The municipal water supply and drainage pipeline connecting structure according to claim 1, wherein: first flange (2), second flange (3), third flange (8) and fourth flange (9) are the same specification, and the connection face of flange all sets up seal groove (11) of adaptation, place good sealing washer (12) of elasticity in seal groove (11).

4. The municipal water supply and drainage pipeline connecting structure according to claim 1, wherein: and the number of the connecting bolts of the first flange (2), the second flange (3), the third flange (8) and the fourth flange (9) is six.

5. The municipal water supply and drainage pipeline connecting structure according to claim 1, wherein: the sealing ring (7) is a wide rubber ring with a flat section, and the first steel pipe (1) and the second steel pipe (10) are made of weldable ductile cast iron.

6. The municipal water supply and drainage pipeline connecting structure according to claim 1, wherein: the pipe walls of the first steel pipe (1), the second steel pipe (10), the main movable pipe (4) and the auxiliary movable pipe (6) are all in threaded connection with U-shaped screws (13), and the lower ends of all the U-shaped screws (13) are all in threaded connection with the supporting plate (14).