CN205806784U - Guide and limit direct-burried outer pressure axial type expansion joint - Google Patents
Guide and limit direct-burried outer pressure axial type expansion joint Download PDFInfo
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- CN205806784U CN205806784U CN201620405641.XU CN201620405641U CN205806784U CN 205806784 U CN205806784 U CN 205806784U CN 201620405641 U CN201620405641 U CN 201620405641U CN 205806784 U CN205806784 U CN 205806784U
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- corrugated tube
- guide
- expansion joint
- mozzle
- pipe
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Abstract
This utility model relates to guide and limit direct-burried outer pressure axial type expansion joint, including end pipe, mozzle, shell, long pipe and corrugated tube, end pipe is connected with shell, corrugated tube connected with outer casing and long pipe respectively, one end of mozzle is connected with end pipe, and the mozzle other end extend in long pipe, corrugated tube is provided with guide plate near the end of mozzle, being provided with limiting plate in the middle part of corrugated tube, housing is provided with limited block, and the distance between limited block and limiting plate is more than or equal to the maximal dilation amount of described corrugated tube.Being evenly equipped with multiple limited block on the excircle of housing, limiting plate is located in middle adapter, and the two ends of middle adapter are connected with corrugated tube respectively.It is inconsistent that the conventional expanded that solves this utility model saves two groups of corrugated tube displacements, deforms asynchronous, the deficiency that stretching was easily lost efficacy.Have employed limited block and limiting plate, two groups of corrugated tube displacements can be made consistent, stress deformation Complete Synchronization, corrugated tube will not damage because of excessive tensile, so that the reliability of whole expansion joint is higher.
Description
Technical field
The present invention relates to heat supply pipeline technical field, a kind of direct-burried outer pressure axial type with guide position limiter
Expansion joint for pipeline.
Background technology
In district heating system, heat supply pipeline mainly have built on stilts lay, the form such as trench laying, directly buried installation.Along with
The development of domestic pipeline directly buried installation technology, the central heating pipe in city uses directly buried installation mode mostly.Owing to various places are used
Family is different for the requirement of product quality, and the product structure of each expansion joint manufacturer is each different, and manufacture level is the most very different,
The failure accidents which results in the type metal expansion joint for directly buried pipeline takes place frequently, and not only causes certain to national wealth
Economic loss, and bring the biggest impact to the production of people, life, even cause casualties.
At present, the domestic conventional expanded joint commonly used generally comprises end pipe, mozzle, shell, long pipe and interconnects mutually
The two groups of corrugated tubes connect, end pipe is connected with shell by end plate, and shell is connected with one end of corrugated tube, the corrugated tube other end and length
Adapter connects, and one end of mozzle is connected with end pipe, and the mozzle other end extend in long pipe, and its structure is as shown in Figure 1.Pipe
When road is by thermal stretching, two groups of corrugated tubes are stretched, and the axial displacement of extraction duct is more.Corrugated tube in drawing process, though
The specification of right two groups of corrugated tubes is identical, but is affected by manufacture deviation, causes rigidity inconsistent, and deformation not exclusively synchronizes, same
Deng under pipeline thrust, corrugated tube displacement is inconsistent, causes corrugated tube to lose efficacy.
Summary of the invention
It is an object of the invention to provide one can make two groups of corrugated tube displacements consistent, stress deformation Complete Synchronization, reliably
The guide and limit direct-burried outer pressure axial type expansion joint that property is higher.
It is an object of the invention to by realizing by the following technical solutions:
Guide and limit direct-burried outer pressure axial type expansion joint, including end pipe, mozzle, shell, long pipe and corrugated tube, institute
State end pipe to be connected with shell by end plate, described corrugated tube ripple adapter connected with outer casing and long pipe, institute respectively by its two ends
The one end stating mozzle is connected with end pipe, and the mozzle other end extend in long pipe, and described corrugated tube is near the end of mozzle
Portion is provided with guide plate, is provided with limiting plate in the middle part of corrugated tube, and described shell is provided with limited block, between limited block and limiting plate away from
From the maximal dilation amount more than or equal to described corrugated tube.
As the preferred technical solution of the present invention, the excircle of described shell is evenly equipped with multiple limited block, described spacing
Plate is located in middle adapter, and the two ends of middle adapter are connected with corrugated tube respectively, and the end of described limited block is higher than limiting plate
Top.
As the preferred technical solution of the present invention, described guide plate is welded on the end of mozzle, and guide plate is connect by ripple
Pipe is connected with corrugated tube.
As the preferred technical solution of the present invention, it is welded to connect by gusset between described end pipe and end plate.
As the preferred technical solution of the present invention, the end of described shell is provided with movable end plate, and the outside of movable end plate sets
There is sealing device, between sealing device and long pipe, be provided with airtight and watertight padding.
As the preferred technical solution of the present invention, described movable end plate is connected with conveying arrangement by screw rod and bolt.
The invention has the beneficial effects as follows: relative to prior art, the present invention is to the tradition compound expansion bellow of direct-burried external pressure
Structure improved, solving conventional expanded, to save the displacement of two groups of corrugated tubes inconsistent, deforms asynchronous, and stretching was easily lost efficacy
Deficiency.Present invention employs limited block and limiting plate, limiting plate and guide plate simultaneously work as guide effect, it is possible to make expansion joint
Two groups of corrugated tube displacements consistent, stress deformation Complete Synchronization, corrugated tube will not damage because of excessive tensile, so that whole swollen
The reliability of swollen joint is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of conventional expanded joint.
Fig. 2 is the structural representation of expansion joint of the present invention.
In figure: 1, end pipe, 2, gusset, 3, end plate, 4, mozzle, 5, guide plate, 6, ripple adapter, 7, corrugated tube, 8, spacing
Block, 9, shell, 10, limiting plate, 11, middle adapter, 12, movable end plate, 13, sealing device, 14, long pipe, 15, transport dress
Put, 16, airtight and watertight padding.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings:
As in figure 2 it is shown, guide and limit direct-burried outer pressure axial type expansion joint, including end pipe 1, mozzle 4, shell 9, long pipe
14 and corrugated tube 7, end pipe 1 is connected with shell 9 by end plate 3, and corrugated tube 7 distinguishes connected with outer casing 9 by the ripple adapter 6 at its two ends
With long pipe 14, one end of mozzle 4 is connected with end pipe 1, and mozzle 4 other end extend in long pipe 14, described corrugated tube 7
Being provided with guide plate 5 near the end of mozzle 4, be provided with limiting plate 10 in the middle part of corrugated tube 7, shell 9 is provided with limited block 8, spacing
Distance between block 8 and limiting plate 10 is more than or equal to the maximal dilation amount of corrugated tube 7.
In the present embodiment, the excircle of described shell 9 being evenly equipped with multiple limited block 8, described limiting plate 10 is located at centre
In adapter 11, the two ends of middle adapter 11 are connected with corrugated tube 7 respectively, and the end of limited block 8 is higher than the top of limiting plate 10.Institute
Stating guide plate 5 and be welded on the end of mozzle 4, guide plate 5 is connected with corrugated tube 7 by ripple adapter 6.Between end pipe 1 and end plate 3
It is welded to connect by gusset 2；The end of shell 9 is provided with movable end plate 12, and the outside of movable end plate 12 is provided with sealing device 13, close
Airtight and watertight padding 16 it is provided with between seal apparatus 13 and long pipe 14；Movable end plate 12 is connected with conveying arrangement 15 by screw rod and bolt
Connect.
The limited block of the present invention welds with shell, evenly distributed on the excircle of shell, between limited block and guide plate
Gap is arranged according to compensation dosage, is the amount of tension of single group corrugated tube design, when two groups of corrugated tubes are stretched to maximum, guide plate
With limited block against, and the amount of tension of two groups of corrugated tubes is identical, ensures that corrugated tube will not be excessively stretched or displacement from structure
Inconsistent and damage, thus ensure that the safety of product.
Claims (6)
1. a guide and limit direct-burried outer pressure axial type expansion joint, including end pipe, mozzle, shell, long pipe and corrugated tube, institute
State end pipe to be connected with shell by end plate, described corrugated tube ripple adapter connected with outer casing and long pipe, institute respectively by its two ends
The one end stating mozzle is connected with end pipe, and the mozzle other end extend in long pipe, it is characterized in that: described corrugated tube is near leading
The end of flow tube is provided with guide plate, is provided with limiting plate in the middle part of corrugated tube, and described shell is provided with limited block, limited block and limiting plate
Between distance more than or equal to the maximal dilation amount of described corrugated tube.
Guide and limit direct-burried outer pressure axial type expansion joint the most according to claim 1, is characterized in that: the cylindrical of described shell
Being evenly equipped with multiple limited block on week, described limiting plate is located in middle adapter, and the two ends of middle adapter are connected with corrugated tube respectively,
The end of described limited block is higher than the top of limiting plate.
Guide and limit direct-burried outer pressure axial type expansion joint the most according to claim 1 and 2, is characterized in that: described guide plate
Being welded on the end of mozzle, guide plate is connected with corrugated tube by ripple adapter.
Guide and limit direct-burried outer pressure axial type expansion joint the most according to claim 1, is characterized in that: described end pipe and end plate
Between be welded to connect by gusset.
Guide and limit direct-burried outer pressure axial type expansion joint the most according to claim 1, is characterized in that: the end of described shell
Being provided with movable end plate, the outside of movable end plate is provided with sealing device, is provided with airtight and watertight padding between sealing device and long pipe.
Guide and limit direct-burried outer pressure axial type expansion joint the most according to claim 5, is characterized in that: described movable end plate leads to
Cross screw rod and bolt is connected with conveying arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620405641.XU CN205806784U (en) | 2016-05-08 | 2016-05-08 | Guide and limit direct-burried outer pressure axial type expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620405641.XU CN205806784U (en) | 2016-05-08 | 2016-05-08 | Guide and limit direct-burried outer pressure axial type expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205806784U true CN205806784U (en) | 2016-12-14 |
Family
ID=58145152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620405641.XU Active CN205806784U (en) | 2016-05-08 | 2016-05-08 | Guide and limit direct-burried outer pressure axial type expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205806784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345611A (en) * | 2016-05-08 | 2017-11-14 | 江苏贝特管件有限公司 | Guide and limit direct-burried outer pressure axial type expansion joint |
-
2016
- 2016-05-08 CN CN201620405641.XU patent/CN205806784U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345611A (en) * | 2016-05-08 | 2017-11-14 | 江苏贝特管件有限公司 | Guide and limit direct-burried outer pressure axial type expansion joint |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |