CN111750182A

CN111750182A - Pipeline sealing structure

Info

Publication number: CN111750182A
Application number: CN202010410997.3A
Authority: CN
Inventors: 杨伟芳; 冯海生; 熊俊波; 罗秋杰; 钱国强; 张震; 陈敏; 储浩钰
Original assignee: Zhejiang Kingland Pipeline Technology Co ltd
Current assignee: Zhejiang Kingland Pipeline Technology Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-10-09

Abstract

The utility model provides a pipeline sealing structure, includes sleeve pipe, intubate, the yield strength more than or equal to of intubate the sleeve pipe, the sleeve pipe include socket section and interlude, the socket section on be provided with annular container, the inside wall of annular container on be provided with containing structure, containing structure in be provided with ring type seal, the internal diameter more than or equal to of socket section ring type seal's internal diameter, the external diameter of intubate all be greater than ring type seal's internal diameter, the external diameter department of intubate equal. The invention cancels a threaded connection structure and solves the problems of the prior art by arranging the socket section with the annular accommodating part to be matched with the insertion pipe.

Description

Pipeline sealing structure

Technical Field

The invention belongs to the technical field of pipeline connecting piece structures, and particularly relates to a pipeline sealing structure.

Background

The existing pipeline connecting piece connects pipelines in a thread mode and then seals the pipelines in a waterproof adhesive tape, a waterproof adhesive and other modes, and the mode has the following defects:

1. the protection requirement on transportation is high, the threaded connection belongs to a matching connection mode which needs certain accuracy, and in the pipeline transportation process, the end is most easily damaged, and the thread of the damaged end causes great problems on connection;

2. the sealing mode is only through waterproof rubberized fabric or waterproof glue, and the leakproofness of screw thread itself is lacked, leads to the leakproofness general.

The patent publication No. CN110594500A, Chinese patent of publication No. 20191220 discloses a pipeline connecting piece with multiple sealing properties, which comprises two first radial sealing rings, wherein the two first radial sealing rings are provided with a first sleeve in a contact manner, the first sleeve is provided with a detachable fixed sealing device in an upper contact manner, the first sleeve comprises a fixed ring, two sides of the fixed ring are respectively and fixedly provided with a fixed pipe, the inner diameter of the fixed ring is smaller than that of the fixed pipe, two sides of the fixed ring, which are close to the wall of the fixed pipe, are respectively provided with an end face sealing ring in a contact manner, the wall of the fixed pipe is provided with a first radial sealing ring, the inner wall of the fixed pipe is provided with threads, and two ends of.

However, the structure in the patent is complex and is also provided with a thread matching structure.

Disclosure of Invention

The invention aims to provide a pipeline sealing structure, which cancels a threaded connection structure and solves the problems of the prior art by arranging a socket section with an annular accommodating part to be matched with an insertion pipe.

The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a pipeline sealing structure, includes sleeve pipe, intubate, the yield strength more than or equal to of intubate the sleeve pipe, the sleeve pipe include socket section and interlude, the socket section on be provided with annular container, the inside wall of annular container on be provided with containing structure, containing structure in be provided with ring type seal, the internal diameter more than or equal to of socket section ring type seal's internal diameter, the external diameter of intubate all be greater than ring type seal's internal diameter, the external diameter department of intubate equal.

The further preferred technical scheme is as follows: the accommodating structure is an annular groove formed by the inward side of the sleeve pipe and the outward side of the arc-shaped recess, and the area of the radial section of the annular sealing ring is larger than the sectional area of the groove body of the annular accommodating structure.

The further preferred technical scheme is as follows: the middle section is a straight pipe or a bent pipe.

The further preferred technical scheme is as follows: the port position of the socket section is provided with a guide port, the inner diameter of the guide port is larger than that of the middle section, and the inner diameter of the guide port is larger than that of the socket section.

The further preferred technical scheme is as follows: the inner diameter of the guide opening is 0.6-0.75 times of the outer diameter of the annular accommodating part.

The further preferred technical scheme is as follows: the difference value of the inner diameter of the guide opening relative to the inner diameter of the socket section is 0.2-0.8 mm.

The further preferred technical scheme is as follows: the socket section with be provided with the changeover portion between the interlude, the internal diameter of changeover portion by socket section one end to interlude one end reduces, just the maximum value of the internal diameter of changeover portion with the socket section equals, the minimum value of the internal diameter of changeover portion with the interlude equals.

The further preferred technical scheme is as follows: the inner diameter of the middle section is smaller than that of the socket section, and the difference between the inner diameter of the middle section and the inner diameter of the socket section is larger than or equal to the thickness of the pipe wall of the insertion pipe.

The further preferred technical scheme is as follows: after the sleeve and the insertion tube are inserted, the outer side wall of the insertion tube is tightly attached to the inner side wall of the socket section.

The invention has the advantages of good sealing performance and simple structure.

Drawings

FIG. 1 is a schematic view of a straight tube structure according to the present invention.

Fig. 2 is a schematic view of the elbow structure of the present invention.

In the figure: 1-a sleeve; 2-intubation; 1-1-a socket section; 1-2-middle section; 1-3-transition section; 1-1-1-annular container; 3-a containment structure; 4-ring seal ring; 5-a guide port.

Detailed Description

The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

As shown in fig. 1, the embodiment of the invention includes a sleeve 1 and an insertion tube 2, the yield strength of the insertion tube 2 is greater than or equal to that of the sleeve 1, the sleeve 1 includes a socket section 1-1 and a middle section 1-2, an annular accommodating part 1-1-1 is arranged on the socket section 1-1, an accommodating structure 3 is arranged on the inner side wall of the annular accommodating part 1-1-1, an annular sealing ring 4 is arranged in the accommodating structure 3, the inner diameter of the socket section 1-1 is greater than or equal to the inner diameter of the annular sealing ring 4, the outer diameters of the insertion tube 2 are greater than the inner diameter of the annular sealing ring 4, and the outer diameters of the insertion tube 2. The intermediate section 1-2 is a straight tube as shown in fig. 1 or a curved tube as shown in fig. 2. A transition section 1-3 is arranged between the socket section 1-1 and the middle section 1-2, the inner diameter of the transition section 1-3 is reduced from one end of the socket section 1-1 to one end of the middle section 1-2, the maximum value of the inner diameter of the transition section 1-3 is equal to that of the socket section 1-1, and the minimum value of the inner diameter of the transition section 1-3 is equal to that of the middle section 1-2. The inner diameter of the middle section 1-2 is smaller than that of the socket section 1-1, and the difference between the inner diameter of the middle section 1-2 and the inner diameter of the socket section 1-1 is larger than or equal to the thickness of the pipe wall of the insertion pipe 2.

As shown in fig. 1, the receiving structure 3 is a ring groove formed by an inward arc-shaped recess of the sleeve 1 to an outward arc-shaped recess, the area of the radial cross section of the ring-shaped seal ring 4 is larger than the sectional area of the groove body of the ring-shaped receiving structure 3, and after the ring groove is processed, the outer side wall of the sleeve at the ring groove protrudes outward to form a ring-shaped receiving portion 1-1-1.

As shown in figure 1, a guide port 5 is arranged at the port position of the socket section 1-1, the inner diameter of the guide port 5 is larger than that of the middle section 1-2, and the inner diameter of the guide port 5 is larger than that of the socket section 1-1. The inner diameter of the guide opening 5 is 0.6-0.75 times the outer diameter of the annular accommodating part 1-1-1. The difference value of the inner diameter of the guide opening 5 relative to the inner diameter of the socket section 1-1 is 0.2 mm-0.8 mm.

As shown in fig. 1, after the sleeve 1 and the cannula 2 are inserted, the outer side wall of the cannula 2 is tightly attached to the inner side wall of the socket section 1-1, the outside of the sleeve 1 is pressurized and received by using a receiving device after the sleeve 1 and the cannula 2 are sleeved, and the yield strength of the cannula 2 is greater than or equal to that of the sleeve 1, so that the deformation of the cannula 2 is smaller than that of the sleeve 1, and the sealing performance between the cannula 2 and the sleeve 1 is improved after the receiving is completed.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the claims appended hereto.

Claims

1. A kind of pipeline seal structure, its characteristic is: including sleeve pipe (1), intubate (2), the yield strength more than or equal to of intubate (2) sleeve pipe (1), sleeve pipe (1) including socket section (1-1) and interlude (1-2), socket section (1-1) on be provided with annular container portion (1-1-1), the inside wall of annular container portion (1-1-1) on be provided with containment structure (3), containment structure (3) in be provided with ring packing (4), the internal diameter more than or equal to of socket section (1-1) the internal diameter of ring packing (4), the external diameter of intubate (2) all be greater than the internal diameter of ring packing (4), the external diameter of intubate (2) everywhere equal.

2. A pipe sealing structure according to claim 1, wherein: holding structure (3) be by the annular that sleeve pipe (1) inboard outside arc sunken formation, the radial cross-sectional area of ring packing (4) be greater than the groove body sectional area of ring holding structure (3).

3. A pipe sealing structure according to claim 1, wherein: the middle section (1-2) is a straight pipe or a bent pipe.

4. A pipe sealing structure according to claim 1, wherein: the mouth piece is characterized in that a guide opening (5) is formed in the port position of the mouth piece section (1-1), the inner diameter of the guide opening (5) is larger than that of the middle section (1-2), and the inner diameter of the guide opening (5) is larger than that of the mouth piece section (1-1).

5. A pipe sealing structure according to claim 4, wherein: the inner diameter of the guide opening (5) is 0.6-0.75 times of the outer diameter of the annular accommodating part (1-1-1).

6. A pipe sealing structure according to claim 4, wherein: the difference value of the inner diameter of the guide opening (5) relative to the inner diameter of the socket section (1-1) is 0.2 mm-0.8 mm.

7. A pipe sealing structure according to claim 1, wherein: a transition section (1-3) is arranged between the socket section (1-1) and the middle section (1-2), the inner diameter of the transition section (1-3) is reduced from one end of the socket section (1-1) to one end of the middle section (1-2), the maximum value of the inner diameter of the transition section (1-3) is equal to that of the socket section (1-1), and the minimum value of the inner diameter of the transition section (1-3) is equal to that of the middle section (1-2).

8. A pipe sealing structure according to claim 4, wherein: the inner diameter of the middle section (1-2) is smaller than that of the socket section (1-1), and the difference between the inner diameter of the middle section (1-2) and the inner diameter of the socket section (1-1) is larger than or equal to the thickness of the pipe wall of the insertion pipe (2).

9. A pipe sealing structure according to claim 1, wherein: after the sleeve (1) and the insertion pipe (2) are inserted, the outer side wall of the insertion pipe (2) is tightly attached to the inner side wall of the socket section (1-1).