CN214618432U - Connecting device of double-wall spiral winding pipe - Google Patents
Connecting device of double-wall spiral winding pipe Download PDFInfo
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- CN214618432U CN214618432U CN202120423571.1U CN202120423571U CN214618432U CN 214618432 U CN214618432 U CN 214618432U CN 202120423571 U CN202120423571 U CN 202120423571U CN 214618432 U CN214618432 U CN 214618432U
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- winding pipe
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Abstract
The utility model relates to a connecting device of double-walled spiral winding pipe. The connecting device is used for connecting a double-wall spiral winding pipe body and comprises a connector, a sealing ring and a fastening ring. One end of each of the two double-wall spirally-wound pipe bodies is inserted into one end of each of the two connectors, and the other ends of the two connectors are arranged oppositely and fixedly connected by fastening rings. The connector comprises a concave part and a convex part, and a sealing ring is arranged between the concave part and the inner wall of the fastening ring. The fastening ring is of a hoop structure, left and right clamping jaws are respectively arranged on the side surface of the fastening ring, and a fastening groove is formed between the two clamping jaws. Convex parts of two adjacent connectors and the sealing ring are clamped in the fastening groove; the fastening ring is used for fixedly connecting two adjacent connectors through the fastening groove. The utility model has the advantages that: the strength of the joint of the double-wall spiral winding pipe is increased, the leakage at the joint of the double-wall spiral winding pipe is prevented, the double-wall spiral winding pipe can bear larger load, and the service life of the double-wall spiral winding pipe is prolonged.
Description
Technical Field
The utility model relates to a double-walled spiral winding pipe technical field especially relates to a connecting device of double-walled spiral winding pipe.
Background
A high-density polyethylene double-wall spiral winding pipe is a light pipe with an outer wall with an annular structure and a smooth inner wall. The advantages are that: (1) the inner wall is smooth, the friction coefficient is small, so the flow velocity is fast and the flow is large; a smaller bore spiral wound pipe may be used for the same flow requirements. (2) Because the chemical property of the high-density polyethylene material is stable, the service life of the high-density polyethylene spiral winding pipe can reach 50 years under the condition of not being irradiated by ultraviolet rays. (3) Because the high-density polyethylene material has very high elongation at break and very strong extensibility, the winding pipe can generate resistant deformation and is not easy to break under the condition of ground settlement or earthquake. Therefore, the method is widely applied to municipal fields such as underground water supply, sewage discharge, underground cable protection and the like. The structure of the connection device and the connection method are important in order to prevent the leakage of sewage from the connection, which results in soil contamination. In the prior art, firstly, the connecting method of the double-wall spiral winding pipe has more operation steps; moreover, the difficulty is high, and the connection needs to be performed by depending on the experience of an operator. Secondly, the wall thickness of the pipe is easy to cause the condition that the connection quality is seriously influenced by insufficient welding, or joint welding distortion and the like; this will directly cause leakage and contamination.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the present invention provides a connecting device for a double-walled spirally-wound pipe, the connecting device being used for connecting a double-walled spirally-wound pipe body, characterized in that: the connecting device comprises a connector, a sealing ring and a fastening ring; one end of each of the two double-wall spirally-wound pipe bodies is inserted into one end of each of the two connectors, and the other ends of the two connectors are arranged oppositely and fixedly connected by fastening rings;
the circumferential surface of one side of the connecting ends of the two connectors is provided with a concave part and a convex part; a sealing ring is arranged between the concave part and the inner wall of the fastening ring;
the fastening ring is of a hoop structure consisting of two semicircular rings, and the left side and the right side of the fastening ring are respectively provided with a left clamping jaw and a right clamping jaw; a fastening groove is formed between the left clamping jaw and the right clamping jaw, and convex parts of two adjacent connectors and the sealing ring are tightly clamped in the fastening groove; the fastening ring is used for fixedly connecting two adjacent connectors through the clamping action of the fastening groove.
The periphery of the middle part of the connector is also provided with an annular limiting groove, and the limiting groove is matched with the convex part; the left clamping jaw and the right clamping jaw of the fastening ring are respectively clamped in the limiting grooves of the two adjacent connectors.
The inner surface of the connecting end of the connector and the double-wall spiral winding pipe body is provided with a step-shaped connecting part, the double-wall spiral winding pipe body is inserted into the connecting part, and the double-wall spiral winding pipe body and the connector are connected and fixed through the connecting part in a hot melting mode.
The connector and the insertion opening of the connecting end of the double-wall spiral winding pipe body are also provided with slopes.
The internal surface of tighrening ring is equipped with annular card thorn, the card thorn is used for the extrusion sealing washer, makes sealing washer and seal groove laminating inseparabler.
The utility model has the advantages that: the strength of the joint of the double-wall spiral winding pipe is increased, the leakage at the joint of the double-wall spiral winding pipe is prevented, the double-wall spiral winding pipe can bear larger load, and the service life of the double-wall spiral winding pipe is prolonged.
Drawings
FIG. 1: is one of the cross sectional views of the utility model;
FIG. 2: is the second cross-sectional view of the utility model.
Reference numerals: the pipe comprises a double-wall spiral winding pipe body 1, a connector 2, a concave part 21, a convex part 22, a limiting groove 23, a connecting part 24, a slope 25, a sealing ring 3, a fastening ring 4, a left clamping jaw 41, a right clamping jaw 42 and a fastening groove 43.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings so as to fully understand the objects, the features and the effects of the present invention.
Referring to fig. 1, the present invention provides a connection device for connecting a double-walled spirally wound pipe body 1. The connecting device comprises a connector 2, a sealing ring 3 and a fastening ring 4. One end of the double-wall spiral winding pipe body 1 is inserted into one end of the two connectors 2, and the other end of the two connectors 2 is arranged oppositely and fixedly connected through the fastening ring 4.
The circumferential surface of one side of the connecting ends of the two connectors 2 is provided with a concave part 21 and a convex part 22; a sealing ring 3 is arranged between the recess 21 and the inner wall of the fastening ring 4.
The fastening ring 4 is of a hoop structure formed by two semicircular rings, and a left clamping jaw 41 and a right clamping jaw 42 are respectively arranged on the left side and the right side of the fastening ring 4; a fastening groove 43 is formed between the left claw 41 and the right claw 42, and the convex parts 22 of two adjacent connectors 2 and the sealing ring 3 are clamped in the fastening groove 43; the fastening ring 4 is used for fixedly connecting two adjacent connectors 2 through the clamping action of the fastening groove 43.
As another preferred embodiment of the present invention, as shown in fig. 2, in order to increase the length of the double-walled spirally-wound pipe body 1, an annular limiting groove 23 is further provided on the periphery of the middle portion of the connecting head 2, and the limiting groove 23 is matched with the convex portion 22; the left claw 41 and the right claw 42 of the fastening ring 4 are respectively clamped in the limiting grooves 23 of two adjacent connectors 2.
In order to ensure that the connection between the double-wall spirally-wound pipe 1 and the connector 2 is firmer and the sealing performance is better, the inner surface of the connection end between the connector 2 and the double-wall spirally-wound pipe body 1 is provided with a step-shaped connection part 24, and the double-wall spirally-wound pipe body 1 is inserted into the connection part 24. The double-wall spiral winding pipe body 1 and the connector 2 are connected and fixed through a connecting part 24 in a hot melting mode.
In order to facilitate the insertion of the double-walled spirally-wound pipe 1 into the connector 2, the connector 2 is further provided with a slope 25 with respect to the insertion opening of the connecting end of the double-walled spirally-wound pipe body 1.
In a preferred embodiment of the present invention, in order to improve the sealing performance at the joint between the adjacent double-walled spirally-wound pipes 1, the inner surface of the fastening ring 4 is provided with annular barbs for pressing the sealing ring 3 to make the sealing ring 3 fit the recess 21 more tightly.
Claims (5)
1. A connecting device for double-walled spirally wound pipes for connecting double-walled spirally wound pipe bodies (1), characterized in that: the connecting device comprises a connector (2), a sealing ring (3) and a fastening ring (4); one end of each of the two double-wall spirally-wound pipe bodies (1) is inserted into one end of each of the two connectors (2), and the other ends of the two connectors (2) are arranged oppositely and fixedly connected by fastening rings (4);
the circumferential surface of one side of the connecting end of the two connectors (2) is provided with a concave part (21) and a convex part (22); a sealing ring (3) is arranged between the concave part (21) and the inner wall of the fastening ring (4);
the fastening ring (4) is of a hoop structure formed by two semicircular rings, and a left clamping jaw (41) and a right clamping jaw (42) are respectively arranged on the left side and the right side of the fastening ring (4); a fastening groove (43) is formed between the left clamping jaw (41) and the right clamping jaw (42), and the convex parts (22) of two adjacent connectors (2) and the sealing ring (3) are clamped in the fastening groove (43); the fastening ring (4) fixedly connects two adjacent connectors (2) through the clamping action of the fastening groove (43).
2. A double-walled spirally wound pipe connection apparatus according to claim 1, wherein: the periphery of the middle part of the connector (2) is also provided with an annular limiting groove (23), and the limiting groove (23) is matched with the convex part (22); the left claw (41) and the right claw (42) of the fastening ring (4) are respectively clamped in the limiting grooves (23) of the two adjacent connectors (2).
3. A double-walled spirally wound pipe connection apparatus according to claim 1, wherein: the inner surface of the connecting end of the connector (2) and the double-wall spiral winding pipe body (1) is provided with a step-shaped connecting part (24), the double-wall spiral winding pipe body (1) is inserted into the connecting part (24), and the double-wall spiral winding pipe body (1) and the connector (2) are connected and fixed through the connecting part (24) in a hot melting mode.
4. A double-walled spirally wound pipe connection apparatus according to claim 1, wherein: the connector (2) and the insertion opening of the connecting end of the double-wall spiral winding pipe body (1) are also provided with a slope (25).
5. A double-walled spirally wound pipe connection apparatus according to claim 1, wherein: the inner surface of the fastening ring (4) is provided with annular clamping thorns, and the clamping thorns are used for extruding the sealing ring (3) so that the sealing ring (3) is attached to the concave part (21) more tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120423571.1U CN214618432U (en) | 2021-02-26 | 2021-02-26 | Connecting device of double-wall spiral winding pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120423571.1U CN214618432U (en) | 2021-02-26 | 2021-02-26 | Connecting device of double-wall spiral winding pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214618432U true CN214618432U (en) | 2021-11-05 |
Family
ID=78391420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120423571.1U Active CN214618432U (en) | 2021-02-26 | 2021-02-26 | Connecting device of double-wall spiral winding pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214618432U (en) |
-
2021
- 2021-02-26 CN CN202120423571.1U patent/CN214618432U/en active Active
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