CN209977513U

CN209977513U - PVC pipeline stretching joint

Info

Publication number: CN209977513U
Application number: CN201920268451.1U
Authority: CN
Inventors: 陈焕
Original assignee: Individual
Current assignee: Wang Jinghai
Priority date: 2019-02-23
Filing date: 2019-02-23
Publication date: 2020-01-21
Anticipated expiration: 2029-02-23

Abstract

The PVC pipeline stretching joint is suitable for repairing and reconstructing pipelines when two ends of a PVC sewer pipeline are fixed; and has the function of resisting the expansion of the pipeline. The PVC pipeline is stretched and connected and consists of an inner pipe, an outer pipe and an outer pipe sealing port; the outer diameter of the lower end of the inner pipe is the inner diameter of the upper end of the outer pipe; the stretching is realized through the adjustable overlapping area of the inner pipe and the outer pipe, and the abutting and overlapping with the maintained pipeline are realized; the inner pipe has two forms of direct connection and three-way connection; the height of the maximum overlapping area of the inner pipe and the outer pipe is three times of the length of the interface at one end; the height of the interface is determined according to the pipe diameter and is directly consistent with the standard on the market; the inner pipe interface is an upper end interface, and the inner diameter of the interface is the outer diameter of a standard pipe; the outer pipe interface is a lower end interface, and the outer diameter of the interface is the inner diameter of a standard pipe; the sealing port consists of a rubber gasket with a V-shaped section and a screw cap; and the V-shaped rubber gasket is extruded by screwing the sealing port to realize sealing.

Description

PVC pipeline stretching joint

Technical Field

The PVC pipeline stretching joint is suitable for repairing and reconstructing pipelines when two ends of a PVC sewer pipeline are fixed; and has the function of resisting the expansion of the pipeline.

Background

The PVC pipeline is maintained and changed, and tight connection can be realized only by tightly adhering and overlapping with the connection construction; when two ends of the pipeline are fixed and need to be maintained or reconstructed, the pipeline can not be stretched directly, can not be attached to and overlapped with two ends of the pipeline to be maintained, and can not be connected; the stepless direct connection sacrifices the close contact with the repaired pipeline, the leakage is easy to happen, and the success rate is low.

Disclosure of Invention

The PVC pipeline is stretched and connected and consists of an inner pipe, an outer pipe and an outer pipe sealing port; the outer diameter of the lower end of the inner pipe is the inner diameter of the upper end of the outer pipe, and the inner pipe and the outer pipe can be stretched in an adjustable overlapping area to be attached to and overlapped with a maintained pipeline; the inner pipe has two forms of direct and three-way; in order to ensure that the inner pipe and the outer pipe can still be effectively connected after stretching, the height of the maximum overlapping area of the inner pipe and the outer pipe is three times of the length of a connector at one end; the height of the interface is determined according to the pipe diameter and is directly consistent with the standard on the market; the inner pipe interface is an upper end interface which can prevent the leakage of the overlapping area, and the inner diameter of the interface is the outer diameter of the standard pipe; the outer pipe joint is a lower end joint, the outer diameter of the joint is the inner diameter of a standard pipe, and the design can avoid the damage of the residual water of the pipeline to the joint sealant during construction; the sealing port consists of a rubber gasket with a V-shaped section and a screw cap; and the V-shaped rubber gasket is extruded by screwing the sealing port to realize sealing.

Drawings

Figure 1 inner pipe is direct pvc pipe stretching joint

Figure 2 inner tube is PVC pipeline of tee bend tensile connects

FIG. 3 before stretching

FIG. 4 after stretching

FIG. 5 is a cross-sectional view of the outer tube

FIG. 6 is a cross-sectional view of a v-shaped rubber gasket

1 the upper end interface of the inner pipe, the inner diameter of the interface is the outer diameter of a standard pipe

2 the inner pipe is direct

3 outer tube sealing port

4 outer tube

5 the lower end interface of the outer pipe, the outer diameter of the interface is the inner diameter of the standard pipe

6 the upper end interface of the inner pipe, the inner diameter of the interface is the outer diameter of the standard pipe

7 the inner pipe is a tee

8 outer tube sealing port

9 outer tube

10 outer pipe lower end interface, the interface external diameter is the internal diameter of standard pipe

11 outer tube sealing port

12 outer pipe wall

Detailed Description

Cutting the damaged area or the modified area to be connected with the pvc pipeline in a stretching way, wherein the height of the damaged area or the modified area is equivalent to that of the pvc pipeline before stretching (figure 3); smearing glue on the interfaces (1), (5), (6) and (10) at the two ends of the stretching connector, placing the stretching connector between the interfaces and stretching the stretching connector up and down (figure 4), wherein the upper end interface pockets the standard pipe, and the lower end interface is inserted into the standard pipe; the sealing ports (3) and (8) are screwed tightly.

Claims

The PVC pipeline stretching connection is characterized in that; comprises an inner pipe, an outer pipe and an outer pipe sealing port; the outer diameter of the lower end of the inner pipe is the inner diameter of the upper end of the outer pipe; the stretching is realized through the adjustable overlapping area of the inner pipe and the outer pipe, and the abutting and overlapping with the maintained pipeline are realized; the height of the maximum overlapping area of the inner pipe and the outer pipe is three times of the length of the interface at one end; the inner pipe interface is an upper end interface, and the inner diameter of the interface is the outer diameter of a standard pipe; the outer pipe interface is a lower end interface, and the outer diameter of the interface is the inner diameter of a standard pipe; the sealing port consists of a rubber gasket with a V-shaped section and a screw cap; and the V-shaped rubber gasket is extruded by screwing the sealing port to realize sealing.
2. The pvc pipe stretch-joint of claim 1, wherein: the outer diameter of the lower end of the inner pipe is the inner diameter of the upper end of the outer pipe; the stretching is realized through the adjustable overlapping area of the inner pipe and the outer pipe.
3. The pvc pipe stretch-joint of claim 1, wherein: the inner pipe interface is an upper end interface, and the inner diameter of the interface is the outer diameter of a standard pipe; the outer pipe interface is a lower end interface, and the outer diameter of the interface is the inner diameter of a standard pipe.
4. The pvc pipe stretch-joint of claim 1, wherein: the outer tube sealing port consists of a rubber gasket with a V-shaped section and a screw cap; and the V-shaped rubber gasket is extruded by screwing the sealing port to realize sealing.