CN214466957U - Connecting structure of helical bellows - Google Patents
Connecting structure of helical bellows Download PDFInfo
- Publication number
- CN214466957U CN214466957U CN202023319351.9U CN202023319351U CN214466957U CN 214466957 U CN214466957 U CN 214466957U CN 202023319351 U CN202023319351 U CN 202023319351U CN 214466957 U CN214466957 U CN 214466957U
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- spiral
- helical bellows
- connection structure
- flange
- sealing
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Abstract
The utility model relates to a helical bellows's connection structure, connection structure is used for connecting helical bellows, helical bellows's surface comprises spiral convex part and spiral smooth portion. The connecting structure is composed of a flange connector and a sealing adhesive tape. The flange connector comprises a pipe body connecting part and a flange part. And a spiral concave part matched with the spiral convex part is arranged on the inner wall of the pipe body connecting part. And spiral smooth parts at two ends of the spiral corrugated pipe are wrapped by sealing adhesive tapes and are used for being in sealing fit with the pipe body connecting part. The utility model has the advantages that: the strength of the joint of the spiral corrugated pipe is improved, the sealing performance of the joint of the spiral corrugated pipe is good, the connecting mode is simple, the operation procedures are few, and the installation efficiency of the spiral corrugated pipe is greatly improved.
Description
Technical Field
The utility model relates to a helical bellows technical field especially relates to a helical bellows's connection structure.
Background
The high-density polyethylene spiral corrugated pipe is a light pipe with a spiral structure outer wall and a smooth inner wall. The advantages are that: (1) the inner wall of the device is smooth, and the friction coefficient is small, so the flow speed is high, and the flow is large; a smaller bore spiral bellows can be used for the same flow requirements. (2) Because of its stable chemical properties, the high-density polyethylene helical bellows can have a service life of up to 50 years without being irradiated by ultraviolet rays. (3) Since the high density polyethylene helical bellows has a very high elongation at break and a very strong elongation property, the high density polyethylene helical bellows can be deformed with resistance without breaking under the 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. In order to prevent the sewage from seeping out of the joint and causing soil pollution, the connection structure of the pipe joint and the pipe is very important. In the prior art, the connection mode of the pipe joint is more and more complicated due to a plurality of operation processes, and the connection is performed by depending on experience of operators. The condition that the connection quality is seriously affected such as insufficient soldering or joint welding distortion easily occurs at the position of the pipe wall thickness; this will directly cause leakage and contamination.
SUMMERY OF THE UTILITY MODEL
In order to solve the quality problem of the connection structure, the utility model aims to provide a connection structure of an anti-leakage spiral corrugated pipe; the connecting structure is used for connecting a spiral corrugated pipe, and the outer surface of the spiral corrugated pipe is composed of a spiral convex part and a spiral smooth part; the method is characterized in that: the connecting structure consists of a flange connector and a sealing adhesive tape; the flange connector comprises a pipe body connecting part and a flange part; the inner wall of the pipe body connecting part is provided with a spiral concave part matched with the spiral convex part; and spiral smooth parts at two ends of the spiral corrugated pipe are wrapped by sealing adhesive tapes and are used for being in sealing fit with the pipe body connecting part.
The sealing tape is unvulcanized rubber.
And the pipe body connecting part is tightly matched with the helical bellows.
The flange part is also provided with through holes which can be mutually connected by bolts.
When the flange connectors are connected, sealing gaskets are arranged on the corresponding surfaces of the two flange parts.
The flange part is also provided with an annular groove on the connecting surface, and a sealing strip is arranged in the annular groove.
The cross section of the annular groove is semicircular, and the cross section of the sealing strip is circular.
The cross section of the annular groove is rectangular, and the cross section of the sealing strip is square.
The utility model has the advantages that: the strength of the joint of the spiral corrugated pipe is improved, the sealing performance of the joint of the spiral corrugated pipe is good, the connecting mode is simple, the operation procedures are few, and the installation efficiency of the spiral corrugated pipe is greatly improved.
Drawings
FIG. 1: is one of the connection state section views of the utility model;
FIG. 2: is the second cross-sectional view of the utility model in the connection state;
FIG. 3: a third cross-sectional view of the connection state of the utility model;
FIG. 4: is the fourth cross-sectional view of the utility model in the connection state;
FIG. 5: is the local explosion diagram of the utility model.
Reference numerals: the sealing structure comprises a spiral corrugated pipe 1, a spiral convex part 11, a spiral smooth part 12, a flange connector 2, a pipe body connecting part 21, a flange part 22, a through hole 221, an annular groove 222, a sealing strip 223, a spiral concave part 23, a sealing tape 3 and a sealing gasket 4.
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. 1-5, the present invention provides a connection structure of a helical bellows, which is used for connecting the helical bellows 1. The outer surface of the helical bellows 1 is composed of a helical convex portion 11 and a helical smooth portion 12. The connecting structure is composed of a flange connector and a sealing adhesive tape. The flange connector 2 consists of a pipe body connecting part 21 and a flange part 22; wherein, the inner wall of the pipe body connecting part 21 is provided with a spiral concave part 23, and the spiral concave part 23 is matched with the spiral convex part 11 of the spiral corrugated pipe 1; the spiral smooth parts 12 at the two ends of the spiral corrugated pipe 1 are wrapped by the sealing adhesive tape 3 and are used for sealing and matching the pipe body connecting part 21.
As a preferred scheme of the utility model, two adjacent connection structure, its flange joint head 2 is when connecting, between the corresponding face of two flange portions 22, is equipped with seal gasket 4.
As an optimized scheme of the utility model, the internal diameter of flange joint 2 slightly is greater than, or equals the external diameter of helical bellows 1. During assembly, the flange connector 2 is heated to 90-100 ℃ by using the principle of expansion with heat and contraction with cold of an object, and when the inner diameter of the flange connector 2 is expanded by 3-5mm, the flange connector 2 is arranged at two ends of the spiral corrugated pipe 1. When the flange connector 2 is slowly cooled at room temperature, the inner diameter of the flange connector 2 gradually shrinks to the size before thermal expansion; in the contraction process, the inner surface of the pipe body connecting part 21 is tightly adhered to the outer surface of the helical bellows 1 through the sealing adhesive tape 3, and the pipe body connecting part 21 is tightly matched with the helical bellows 1.
In order to make the sealing performance between the helical bellows 1 and the flange connector 2 better, as a preferred embodiment of the present invention, the sealing tape 3 is unvulcanized rubber.
For construction convenience, as a preferred scheme of the utility model, on the flange portion 22, still be equipped with each other and can adopt bolted connection's through-hole 221.
For construction convenience, and the sealing performance of helical bellows junction is better, as the utility model discloses a preferred scheme, on the flange portion 22, still be equipped with ring channel 222, be equipped with sealing strip 223 in ring channel 222.
In a preferred embodiment of the present invention, the annular groove 222 has a semicircular cross section, and the sealing strip 223 has a circular cross section.
As a preferred embodiment of the present invention, the cross section of the annular groove 222 is rectangular, and the cross section of the sealing strip 223 is square.
Claims (8)
1. A connection structure of a helical bellows is used for connecting the helical bellows (1), the outer surface of the helical bellows (1) is composed of a helical convex part (11) and a helical smooth part (12); the method is characterized in that: the connecting structure consists of a flange connector (2) and a sealing adhesive tape (3); the flange connector (2) comprises a pipe body connecting part (21) and a flange part (22); a spiral concave part (23) matched with the spiral convex part (11) is arranged on the inner wall of the pipe body connecting part (21); spiral smooth parts (12) at two ends of the spiral corrugated pipe (1) are wrapped by sealing adhesive tapes (3) and are used for being in sealing fit with the pipe body connecting part (21).
2. A connection structure of a helical bellows as claimed in claim 1, wherein: the sealing adhesive tape (3) is unvulcanized rubber.
3. A connection structure of a helical bellows as claimed in claim 1, wherein: the pipe body connecting part (21) is tightly matched with the spiral corrugated pipe (1).
4. A connection structure of a helical bellows as claimed in claim 1, wherein: the flange part (22) is also provided with through holes (221) which can be mutually connected by bolts.
5. A connection structure of a helical bellows as claimed in claim 1, wherein: when the flange connectors (2) are connected, sealing gaskets (4) are arranged on the corresponding surfaces of the two flange parts (22).
6. A connection structure of a helical bellows as claimed in claim 1, wherein: an annular groove (222) is further formed in the connecting surface of the flange portion (22), and a sealing strip (223) is arranged in the annular groove (222).
7. A connection structure of a helical bellows according to claim 6, wherein: the annular groove (222) is semicircular in cross section, and the seal strip (223) is circular in cross section.
8. A connection structure of a helical bellows according to claim 6, wherein: the cross section of the annular groove (222) is rectangular, and the cross section of the sealing strip (223) is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023319351.9U CN214466957U (en) | 2020-12-31 | 2020-12-31 | Connecting structure of helical bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023319351.9U CN214466957U (en) | 2020-12-31 | 2020-12-31 | Connecting structure of helical bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214466957U true CN214466957U (en) | 2021-10-22 |
Family
ID=78137851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023319351.9U Active CN214466957U (en) | 2020-12-31 | 2020-12-31 | Connecting structure of helical bellows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214466957U (en) |
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2020
- 2020-12-31 CN CN202023319351.9U patent/CN214466957U/en active Active
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