CN203010047U - Corrugated pipe - Google Patents
Corrugated pipe Download PDFInfo
- Publication number
- CN203010047U CN203010047U CN 201220586827 CN201220586827U CN203010047U CN 203010047 U CN203010047 U CN 203010047U CN 201220586827 CN201220586827 CN 201220586827 CN 201220586827 U CN201220586827 U CN 201220586827U CN 203010047 U CN203010047 U CN 203010047U
- Authority
- CN
- China
- Prior art keywords
- joints
- joint
- pipe
- pipe body
- seal ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Joints Allowing Movement (AREA)
Abstract
The utility model discloses a corrugated pipe which comprises a pipe body, a heat shrinkable pipe and joints, wherein the heat shrinkage pipe is covered on the exterior of the pipe body, and the joints are welded at two ends of the pipe body. Limiting parts are arranged on the peripheries of the middle portions of the joints. Connecting nuts and sealing rings are arranged on the joints in a sleeved mode. The sealing rings are sleeved on the outer end portions of the joints and abutted against the limiting parts. Outer convex edges used for assisting positioning of the sealing rings are further arranged on the outer end portions of the joints. The radial thickness of the sealing rings is larger than the height of the limiting parts. Two ends of the heat shrinkable pipe extend to the limiting parts on the joints. Due to the fact that the heat shrinkage pipe is covered on the pipe body and the joints, the pipe body, the fact that the joints and the positions where the pipe body is connected with the joints are prevented from oxidation and corrosion is ensured, and the service life of the integral corrugated pipe is ensured. Due to arrangement of the outer convex edges, impact and corrosion on the sealing rings when fluid flows in the pipe body are reduced.
Description
Technical field
The utility model belongs to the metal pipe technical field, is specifically related to a kind of bellows structure of the belt lacing for delivery of gas or liquid.
Background technique
The bent metal bellows of prior art generally need to be at the two end part jointing in case more easily with equipment connection; also can increase in addition pipe box with the protection bellows outside bellows; the corrugated pipe connector place structure of prior art is comparatively fragile; easily damage; during due to the bellows working state, there is certain pressure inside, if corrugated pipe connector place's explosion will produce danger.The joint at bellows two ends generally also is provided with the seal ring of quality of rubber materials in addition, and leakage is easily caused in the location status of seal ring unstable joint.
Summary of the invention
The purpose of this utility model is: the deficiency for prior art exists provides a kind of rational in infrastructure, the bellows structure of stable performance.
For realizing the purpose of the utility model, be achieved by the following technical solutions: a kind of bellows, consisted of by body, the joint that is coated on the outer heat-shrink tube of body and is welded on body two ends, on joint, the middle part periphery is provided with limited part, be arranged with attaching nut and seal ring on joint, seal ring is sheathed on the joint outer end and offsets with limited part, and the joint outer end also is provided with the outer convex edge of auxiliary positioning seal ring; Described seal ring radial thickness is greater than the height of limited part.
As preferred version: described heat-shrink tube two ends extend to the position of joint upper limit section.
As preferred version: described heat-shrink tube thickness is 0.5mm-3.0mm.
As preferred version: the outer convex edge of described joint outer end exceeds 0.5mm-1.0mm than joint periphery.
Compared with prior art, the beneficial effects of the utility model are: owing to being coated with heat-shrink tube on body and joint, guaranteed the not oxidated corrosion in body, joint and their joint, guaranteed the working life of bellows integral body.Also be provided with the outer convex edge of auxiliary positioning seal ring due to the joint outer end; Described seal ring radial thickness is greater than the height of limited part, like this when using the attaching nut to be connected to bellows on equipment, can guarantee seal ring and equipment connection port good contact, sealability is good, when the setting of outer convex edge has reduced flow inlet pipe body, seal ring is produced and impacts, corrodes.
Description of drawings
Fig. 1 is structural representation of the present utility model.
1, body; 2, heat-shrink tube; 3, joint; 31, limited part; 32, outer convex edge; 4, seal ring; 5, attaching nut.
Embodiment
The below makes a detailed explanation embodiment of the present utility model with reference to the accompanying drawings.
Embodiment
According to shown in Figure 1, the described a kind of bellows of the present embodiment, consisted of by body 1, the joint 3 that is coated on the outer heat-shrink tube 2 of body 1 and is welded on body 1 two ends, on joint 3, the middle part periphery is provided with limited part 31, be arranged with attaching nut 5 and seal ring 4 on joint 3, seal ring 4 is sheathed on joint 3 outer ends and offsets with limited part 31, and joint 3 outer ends also are provided with the outer convex edge 32 of auxiliary positioning seal ring 4; Described seal ring radial thickness is greater than the height of limited part.Described attaching nut 5 establishes a threaded end outwardly, is spirally connected in order to the connecting port with relevant device.
Described heat-shrink tube 2 two ends extend to the position of joint 3 upper limit sections 31.Heat-shrink tube 2 coats body 1, joint 3 and their joint fully, makes its not oxidated corrosion, extends the bellows whole service life.
Described heat-shrink tube 2 thickness are 0.5mm-3.0mm.
The outer convex edge 32 of described joint 3 outer ends exceeds 0.5mm-1.0mm than joint 3 peripheries.Outer convex edge 32 is shaped as a horn mouth, when the setting of outer convex edge 32 has reduced flow inlet pipe body, seal ring is produced and impacts, corrodes.
During use, only need make smooth the offseting in connecting port of seal ring 4 and relevant device on joint 3, the connecting port that re-uses attaching nut 5 and equipment is spirally connected and gets final product.
Claims (4)
1. bellows, it is characterized in that: consisted of by body, the joint that is coated on the outer heat-shrink tube of body and is welded on body two ends, on joint, the middle part periphery is provided with limited part, be arranged with attaching nut and seal ring on joint, seal ring is sheathed on the joint outer end and offsets with limited part, and the joint outer end also is provided with the outer convex edge of auxiliary positioning seal ring; Described seal ring radial thickness is greater than the height of limited part.
2. a kind of bellows according to claim 1 is characterized in that: described heat-shrink tube two ends extend to the position of joint upper limit section.
3. a kind of bellows according to claim 1, it is characterized in that: described heat-shrink tube thickness is 0.5mm-3.0mm.
4. a kind of bellows according to claim 1 is characterized in that: the outer convex edge of described joint outer end exceeds 0.5mm-1.0mm than joint periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220586827 CN203010047U (en) | 2012-11-08 | 2012-11-08 | Corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220586827 CN203010047U (en) | 2012-11-08 | 2012-11-08 | Corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203010047U true CN203010047U (en) | 2013-06-19 |
Family
ID=48601644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220586827 Expired - Fee Related CN203010047U (en) | 2012-11-08 | 2012-11-08 | Corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203010047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654760A (en) * | 2017-10-04 | 2018-02-02 | 英立（江苏）机电有限公司 | A kind of PE gas pipelines with anti-flaming function |
-
2012
- 2012-11-08 CN CN 201220586827 patent/CN203010047U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654760A (en) * | 2017-10-04 | 2018-02-02 | 英立（江苏）机电有限公司 | A kind of PE gas pipelines with anti-flaming function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131108 |