CN203857180U - Expansion joint for pipeline - Google Patents
Expansion joint for pipeline Download PDFInfo
- Publication number
- CN203857180U CN203857180U CN201420075874.9U CN201420075874U CN203857180U CN 203857180 U CN203857180 U CN 203857180U CN 201420075874 U CN201420075874 U CN 201420075874U CN 203857180 U CN203857180 U CN 203857180U
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- pipeline
- telescopic pipe
- connecting plate
- pipeline expansion
- 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 an expansion joint for a pipeline. The expansion joint is characterized in that a telescopic pipe is arranged in the middle of the expansion joint for the pipeline, locking rings are arranged on two ends in the axial direction of the telescopic pipe, a plurality of folding crests are arranged in the middle of the telescopic pipe, left and right pairs of semicircular hoops are arranged on two sides of the telescopic pipe, grooves are respectively formed in two ends in the axial direction of each hoop, outward-turning connecting plates are arranged on two sides in the circumferential direction of each hoop, a plurality of connecting bolt holes are formed in each outward-turning connecting plate, elastic sealing rubber strips are arranged on the inner sides of the grooves of the semicircular hoops and the outward-turning connecting plates, the outward-turning connecting plates of the left and right pairs of semicircular hoops penetrate through the connecting bolt holes through a locking bolt group, so that the left and right pairs of semicircular hoops are locked. The expansion joint for the pipeline is used for connection of a large-caliber plastic drainage and blow-down pipe and is a multifunctional connection device, and can adapt to the axial contraction and the swelling deformation which are caused by expanding with heat and contracting with cold, and cracking of a connecting place caused by pipeline inclination due to the local subsidence of a foundation can be avoided, and the leakage is prevented.
Description
Technical field
The utility model relates to pipe fittings field, is the connection set of various large-bore plastics draining drain pipes.
Background technique
Large-bore plastics draining drain pipe has been embedded at present underground with managing as urban rainwater, sewage collecting and discharge main, because following two kinds of reasons can cause being embedded in underground pipe leakage, thereby cause environmental pollution:
Due to approximately 8 to 12 meters of the production length (because lorry loading length is limit) of every segment pipe, between inspection shaft and inspection shaft, distance generally has tens meters, need link together and dock with inspection shaft again with multistage pipeline, the connecting means adopting in engineering construction at present mainly contains thermal shrinkable sleeve and connects, Electric thermal smelting belt connects, clip connected, enlarging socket joint connects, the Lung biopsies such as electric heating melting socket joint connection, tens mitron roads after connection can be because of the cold shrinkage and thermal expansion characteristic of plastics, the cold and hot variation of weather, make the pipeline axial after buried produce serious contraction or expansion distortion, make deform cracking or depart from of connection part between tube and tube, thereby cause leakage.
Because pipeline is buried, rear because ground produces local sinking, body can tilt thereupon, thus make between tube and tube or pipe and inspection shaft between deform cracking or depart from and cause leakage of connection part.
Summary of the invention
The purpose of this utility model is that the leakage causing that certainly falls into that solves the existing connecting means of large-bore plastics draining drain pipe causes environmental pollution problem, provide a kind of pipeline expansion joint as the reliable connecting means of large-bore plastics draining drain pipe for this reason, thoroughly solved an above-mentioned difficult problem.
In order to realize above object, the utility model solves its technical barrier and is achieved through the following technical solutions.
A kind of pipeline expansion joint, it is characterized in that: in the middle of this pipeline expansion joint, be provided with telescopic pipe (1), and be provided with locking ring (2) in slip-tube shaft to two ends, centre is provided with multiple folding crests (3), telescopic pipe (1) both sides are provided with left and right two double ring-shaped clip (4), the axial two ends of clip are respectively equipped with groove (6, 7), hoop both sides are provided with the connecting plate that turns up (5) and on connecting plate, have multiple connecting bolts hole (9) turning up, the groove (6 of semi-circular clip (4), 7) and the connecting plate that turns up (5) inner side be provided with elastic packing adhesive tape (8), the connecting plate that turns up (5) of left and right two double ring-shaped clip (4) is locked left and right two double ring-shaped clip (4) through connecting bolt hole (9) by lock bolt group (10).
Lock bolt group (10) is made for stainless steel material.
Telescopic pipe (1) is to be made up of low-density polyethylene material.
Semi-circular clip (4) is to be made up of glass fibre reinforced plastic material.
Elastic packing adhesive tape (8) is to be made up of water-swellable adhesive tape.
Prior art relatively, advantage of the present utility model and beneficial effect are:
solved large-bore plastics draining drain pipe connect buried after, the axial shrinkage that causes pipeline because of temperature change causes leaking with strain cracking or the disengaging of the pipeline that causes of expanding.
solved large-bore plastics draining drain pipe connect buried after, because of ground sink, body tilt to make connection part deform cracking or depart from cause leak.
Brief description of the drawings
Fig. 1 is the sectional view of pipeline expansion joint assembling;
Fig. 2 is the plan view of telescopic pipe in pipeline expansion joint;
fig. 3 is the stereogram of telescopic pipe in pipeline expansion joint;
fig. 4 is the sectional view of semi-circular clip and elastic packing adhesive tape assembling in pipeline expansion joint;
fig. 5 is the axonometric drawing of semi-circular clip and elastic packing adhesive tape assembling in pipeline expansion joint;
fig. 6 is the plan view of pipeline expansion joint and body assembling;
fig. 7 is the right elevation of Fig. 8;
fig. 8 is the plan view of pipeline expansion joint and body assembling;
fig. 9 is the partial sectional view of pipeline expansion joint and body assembling.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, the utility model comprises: be made up of telescopic pipe (1), semi-circular clip (4), elastic packing adhesive tape (8) lock bolt group (10).
By shown in Fig. 2 to Fig. 3, the utility model wherein axial both sides of telescopic pipe (1) is provided with locking ring (2), for being connected with semi-circular clip (4), the centre of telescopic pipe (1) is provided with multiple folding crests (3), compressible and stretching when being used for when body axial shrinkage and expanding, when ground sink, when tilting, body can respective curved be out of shape, play buffer function.
By shown in Fig. 4 to Fig. 5, the utility model wherein axial two ends of semi-circular clip (4) is respectively equipped with groove (6,7), hoop both sides are provided with the connecting plate that turns up (5) and wherein have multiple connecting bolts hole (9), and elastic packing adhesive tape (8) is close on the groove (6,7) of semi-circular clip (4) and the connecting plate (5) that turns up.
By shown in Fig. 6 to Fig. 9, the utility model provides a kind of preferred and reliable case for large-bore plastics draining drain pipe connects, it is by semi-circular clip (4), both sides plastic tube (11) and middle telescopic pipe (1) to be linked together, wherein the groove (6) of semi-circular clip (4) is closely buckled on the locking ring (2) of telescopic pipe (1) both sides, the groove (7) of semi-circular clip (4) presses on the port of left and right two pipelines (11), due to the groove (6 of semi-circular clip (4), 7) with and the connecting plate that turns up (5) inner side post respectively elastic packing adhesive tape (8), the connecting bolt hole (9) of the connecting plate that turns up (5) of two halves ring-shaped clip (4) is put on respectively lock bolt group (10) and is tightened to closure, by the groove (6 of semi-circular clip (4), 7) press elastic packing adhesive tape (8), sewage in the utility model and pipeline connection part cannot be leaked.The axial shrinkage that the large-bore plastics draining drain pipe that uses the utility model to connect can be avoided causing pipeline because of temperature change with expand with or because ground sink, cause joint with pipeline cracking or depart from causing leakage.
Claims (5)
1. a pipeline expansion joint, it is characterized in that: in the middle of this pipeline expansion joint, be provided with telescopic pipe (1), and be provided with locking ring (2) in slip-tube shaft to two ends, centre is provided with multiple folding crests (3), telescopic pipe (1) both sides are provided with left and right two double ring-shaped clip (4), the axial two ends of clip are respectively equipped with groove (6, 7), hoop both sides are provided with the connecting plate that turns up (5) and on connecting plate, have multiple connecting bolts hole (9) turning up, the groove (6 of semi-circular clip (4), 7) and the connecting plate that turns up (5) inner side be provided with elastic packing adhesive tape (8), the connecting plate that turns up (5) of left and right two double ring-shaped clip (4) is locked left and right two double ring-shaped clip (4) through connecting bolt hole (9) by lock bolt group (10).
2. pipeline expansion joint according to claim 1, is characterized in that lock bolt group (10) makes for stainless steel material.
3. pipeline expansion joint according to claim 1, is characterized in that telescopic pipe (1) is to be made up of low-density polyethylene material.
4. pipeline expansion joint according to claim 1, is characterized in that semi-circular clip (4) is to be made up of glass fibre reinforced plastic material.
5. pipeline expansion joint according to claim 1, is characterized in that elastic packing adhesive tape (8) is to be made up of water-swellable adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420075874.9U CN203857180U (en) | 2014-02-24 | 2014-02-24 | Expansion joint for pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420075874.9U CN203857180U (en) | 2014-02-24 | 2014-02-24 | Expansion joint for pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203857180U true CN203857180U (en) | 2014-10-01 |
Family
ID=51607028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420075874.9U Expired - Fee Related CN203857180U (en) | 2014-02-24 | 2014-02-24 | Expansion joint for pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203857180U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421331A (en) * | 2015-11-27 | 2016-03-23 | 淮海工学院 | Anti-bending drainage channel for soft soil drainage consolidation |
| CN107653939A (en) * | 2017-09-29 | 2018-02-02 | 谢萍萍 | A kind of new water supply and drainage assembling pipe joint |
| CN111118585A (en) * | 2020-01-08 | 2020-05-08 | 广德东威科技有限公司 | Plating bath structure and electroplating device |
-
2014
- 2014-02-24 CN CN201420075874.9U patent/CN203857180U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421331A (en) * | 2015-11-27 | 2016-03-23 | 淮海工学院 | Anti-bending drainage channel for soft soil drainage consolidation |
| CN107653939A (en) * | 2017-09-29 | 2018-02-02 | 谢萍萍 | A kind of new water supply and drainage assembling pipe joint |
| CN111118585A (en) * | 2020-01-08 | 2020-05-08 | 广德东威科技有限公司 | Plating bath structure and electroplating device |
| CN111118585B (en) * | 2020-01-08 | 2022-02-25 | 广德东威科技有限公司 | Plating bath structure and electroplating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20180224 |