CN2380779Y - Balancing expansion joint for pipeline - Google Patents
Balancing expansion joint for pipeline Download PDFInfo
- Publication number
- CN2380779Y CN2380779Y CN 98223688 CN98223688U CN2380779Y CN 2380779 Y CN2380779 Y CN 2380779Y CN 98223688 CN98223688 CN 98223688 CN 98223688 U CN98223688 U CN 98223688U CN 2380779 Y CN2380779 Y CN 2380779Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- outer tube
- pipeline
- joint
- mouth
- 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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Abstract
The utility model discloses a balancing expansion joint for pipelines. The utility model is characterized in that a sealing gap chamber is arranged between an inner pipe and an outer pipe, the inner pipe is provided with at least one through hole which can be communicated with the gap chamber, or the inner pipe is provided with a bearing damping spring. The utility model can be widely used for liquid or gas pipelines.
Description
The utility model relates to a kind of pipeline balanced type slip joint that is used for.
At present, people are in order to solve the variation of vertical (axially) length that produces because of a variety of causes in the pipeline (liquid, gas), a kind of sliding type slip joint that cries has been installed in described pipeline, this slip joint it mainly by a joint outer tube and be located at one in this outer tube joint telescopic in pipe constitute, in described pipe to be located at the end mouth of pipe in the described outer tube is the built-in mouth of pipe, on the end face of this built-in mouth of pipe because of being subjected to the influence of hydraulic pressure in the pipeline or air pressure for a long time, make vertically (axially) the insignificant stretching, extension of described interior pipe, therefore, cause described slip joint to be out of shape in advance and wear out.
The purpose of this utility model be a kind of meaningless stretching, extension of interior pipe that stops slip joint will be provided be used for pipeline balanced type slip joint.
The purpose of this utility model is achieved in that and is used for pipeline balanced type slip joint, it comprises a joint outer tube, on this outer tube one end mouth of pipe, be provided with a pipe joint, on the other end mouth of pipe of this outer tube, be provided with a sealed cap, in this outer tube, be with a joint telescopic in pipe, an end mouth of pipe of this interior pipe is positioned at described outer tube, this mouth of pipe is the built-in mouth of pipe, it is characterized in that on the inwall at the two ends of described outer tube, or in sealed cap, all can be provided with seal ring; On the outer rim of the described built-in mouth of pipe, be provided with a dome, on this dome, also be provided with seal ring, thereby make between described inside and outside two pipes and form chamber, an airtight gap, be arranged on the pipe in described that described dome is other to be provided with one at least and to link up with chamber, described airtight gap only and can make the liquid of pipeline or gas flow into the indoor through hole in this airtight gap, perhaps pipe is provided with a pressure-bearing damping spring in this.
Slip joint described in the utility model, owing between described inside and outside two pipes, established an airtight chamber, gap, and it is indoor to flow into this gap by described through hole by liquid in the pipeline or gas, form a reaction force that is used for resisting from pressure in the pipeline, make it the pressure between adjustment automatically and this chamber, gap of balance and the pipeline, thereby reach the purpose of the vertical meaningless stretching, extension of described interior pipe.In like manner, in described, be provided with a spring that can play the pressure-bearing damping function on the pipe, equally also can reach the purpose that stops the vertical meaningless stretching, extension of described interior pipe.
The purpose of this utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is first embodiment's of a slip joint described in the utility model structural representation.
Fig. 2 is second embodiment's of a slip joint described in the utility model structural representation.
Fig. 3 is the 3rd embodiment's of a slip joint described in the utility model structural representation.
Describe structure in detail below in conjunction with Fig. 1 and Fig. 2 according to the concrete slip joint that the utility model proposes.
This is used for pipeline balanced type slip joint, it comprises a joint outer tube 1, on an end mouth of pipe of this outer tube 1, be provided with a pipe joint 1-1, on the other end mouth of pipe of this outer tube 1, be provided with a sealed cap 3, in this outer tube, be with a joint and manage 2 in telescopic, should in a pipe end mouth of pipe 2-1 of 2 be positioned at described outer tube 1, this mouth of pipe is the built-in mouth of pipe, on the inwall at the two ends of described outer tube 1 or all can be provided with seal ring 4 in sealed cap 3; On the outer rim of described built-in mouth of pipe 2-1, be provided with a dome 2-2, on this dome 2-2, also be provided with seal ring 4, thereby make between described inside and outside two pipes 1 and 2 and form chamber, an airtight gap 5, pipe is arranged in that described dome 2-2 is other to be provided with one at least and to link up with chamber, described airtight gap 5 only and can make the liquid of pipeline or gas flow into the indoor through hole 2-3 in this airtight gap on 2 in described, and perhaps pipe is provided with a pressure-bearing damping spring 6 in this.
In described, be positioned at described dome side on the pipe 2 and can also be provided with the convex shoulder 2-4 that anti-this pipe is outwards deviate from.
Claims (2)
1. one kind is used for pipeline balanced type slip joint, it comprises a joint outer tube, on an end mouth of pipe of this outer tube, be provided with a pipe joint, on the other end mouth of pipe of this outer tube, be provided with a sealed cap, being with a joint in this outer tube manages in telescopic, should in the end mouth of pipe of pipe be positioned at described outer tube, this mouth of pipe is the built-in mouth of pipe, it is characterized in that on the inwall at the two ends of described outer tube or all can be provided with seal ring in sealed cap; On the outer rim of the described built-in mouth of pipe, be provided with a dome, on this dome, also be provided with seal ring, thereby make between described inside and outside two pipes and form chamber, an airtight gap, be arranged on the pipe in described that described dome is other to be provided with one at least and to link up with chamber, described airtight gap only and can make the liquid of pipeline or gas flow into the indoor through hole in this airtight gap, perhaps pipe is provided with a pressure-bearing damping spring in this.
2. the pipeline balanced type slip joint that is used for according to claim 1 is characterized in that being positioned on the pipe described dome side and can also be provided with the convex shoulder that anti-this pipe is outwards deviate from described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98223688 CN2380779Y (en) | 1998-04-09 | 1998-04-09 | Balancing expansion joint for pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98223688 CN2380779Y (en) | 1998-04-09 | 1998-04-09 | Balancing expansion joint for pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2380779Y true CN2380779Y (en) | 2000-05-31 |
Family
ID=33974724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98223688 Expired - Fee Related CN2380779Y (en) | 1998-04-09 | 1998-04-09 | Balancing expansion joint for pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2380779Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312773A (en) * | 2018-04-13 | 2018-07-24 | 黑龙江工业学院 | A kind of Multifunctional paint sprayer |
| CN110159210A (en) * | 2019-04-25 | 2019-08-23 | 中国地质大学（武汉） | A kind of wave displacement compensation device |
-
1998
- 1998-04-09 CN CN 98223688 patent/CN2380779Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312773A (en) * | 2018-04-13 | 2018-07-24 | 黑龙江工业学院 | A kind of Multifunctional paint sprayer |
| CN110159210A (en) * | 2019-04-25 | 2019-08-23 | 中国地质大学（武汉） | A kind of wave displacement compensation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |