CN115539725A - End-constrained rated-pressure sealed pipe joint - Google Patents
End-constrained rated-pressure sealed pipe joint Download PDFInfo
- Publication number
- CN115539725A CN115539725A CN202211305021.5A CN202211305021A CN115539725A CN 115539725 A CN115539725 A CN 115539725A CN 202211305021 A CN202211305021 A CN 202211305021A CN 115539725 A CN115539725 A CN 115539725A
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- flange
- pipe
- fixed
- rated
- air bag
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- 210000004907 gland Anatomy 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 18
- 238000005056 compaction Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 24
- 238000007906 compression Methods 0.000 description 24
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000000670 limiting effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/03—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention provides an end-constrained rated-pressure sealed pipe joint which comprises a connecting pipe, a gland and an end-constrained pipe, wherein a first flange and a second flange are fixed on the connecting pipe, the gland is composed of a first short pipe, a third flange and a second short pipe which are concentrically and sequentially fixed, the second short pipe is sleeved outside the second end of the connecting pipe, the end-constrained pipe comprises a fourth flange and a compacted pipe, the fourth flange is fixed at one end of the compacted pipe, a second annular groove is formed in the inner side wall of the compacted pipe, an annular air bag is arranged in the second annular groove, the compacted pipe is sleeved outside the first short pipe, the fourth flange is fixed with the second flange through a long bolt, and the third flange is fixed with the second flange through a short bolt. When the pipeline fixing device is used, only two long bolts are needed to be fixed, and the end part restraint pipe is fixed on the second flange, so that the pipeline can be fixed by the end part restraint pipe, the installation is simple and convenient, and the installation time is saved; the restriction of the environmental condition of the pipeline is small when the end part restriction pipe is installed, the application range is wide, and the manufacturing cost is low.
Description
Technical Field
The invention relates to the technical field of joints, in particular to an end-constrained rated-pressure sealing pipe joint.
Background
The pipe joint is a connecting tool between a pipeline and a connecting point between an element and the pipeline, and can be disassembled and assembled. Plays an indispensable important role in the pipe fitting.
In the actual use process of the existing pipeline, phenomena such as joint drop, deformation of the end of the pipeline and the like occur, so some pipe joints are provided with end constraint steel fittings, for example, fig. 1 shows an end constraint pipe joint in the prior art, wherein the end constraint steel fittings specifically comprise a compression ring, a compression bolt and an end constraint pressing block, the compression ring is fixed on a flange pressing cover of the pipe joint, the compression ring is provided with a screw hole, the compression bolt is fixed in the screw hole through threaded connection, the end of the compression bolt is provided with an end constraint block, the end constraint block is arranged in the compression ring and provided with a limiting ring, all the compression bolts rotate to the position of the limiting ring, the compression bolt collides with the end constraint block to extrude the pipeline, the end of the pipeline is constrained, and the pressure is guaranteed to be the rated pressure; however, the following problems mainly exist in the prior art:
firstly, in the prior art, the compression bolt and the end part constraint block are arranged along a circle of the compression ring, when the pipe joint is used, the whole installation can be completed only by rotating the compression bolt for one circle to the position of the limit ring, the installation of the pipe joint is troublesome, and the installation time of workers is inconvenient to save;
secondly, the compression bolt is arranged around the compression ring for a circle and is perpendicular to the direction of a pore channel of the pipeline, and when the compression bolt rotates, the compression bolt can be rotated to be compressed and fixed only by requiring a space on the outer side of the circumference of the limiting ring, but the requirement cannot be always met in the actual installation process of the pipeline, for example, a gap below the pipeline is very small, so that the bolt cannot be screwed by using a tool below the pipeline, and the end part of the pipeline cannot reach the rated pressure when being restrained;
thirdly, the existing end-restrained steel fittings are often directly fixed with the pipe joints and cannot be disassembled, and in the actual use process, when the pipe joints with end-restrained steel fittings are not needed, the joints cannot be used, so that the application range is narrow;
fourth, the existing end constraint sealing pipe joint structure is complex and the manufacturing cost is high.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an end-constrained rated pressure sealing pipe joint.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a rated pressure sealed tube joint of tip restraint, includes the about pipe of connecting pipe, gland and tip, the connecting pipe includes first end and second end, the fixed first flange of first end is close to the lateral wall cover of second end is established and is fixed with the second flange, the inner wall of second end has first annular groove, first annular groove is embedded to have first sealing washer, the gland comprises concentric first nozzle stub, third flange and the second nozzle stub that fixes in proper order, the second nozzle stub cover is established outside the second end of connecting pipe, the about pipe of tip includes fourth flange and compaction pipe, the fourth flange is fixed the one end of compaction pipe, the inside wall of compaction pipe is equipped with second annular groove, be equipped with annular airbag in the second annular groove, the compaction pipe box is established outside the first nozzle stub, the fourth flange pass through the long bolt with the second flange is fixed, the third flange pass through the short bolt with the second flange is fixed.
Preferably, the annular airbag comprises a first elastic airbag, a second elastic airbag and a connecting channel, the first elastic airbag and the second elastic airbag are communicated through the connecting channel, the annular airbag is filled with gas, and the first elastic airbag is close to the fourth flange.
Preferably, the second elastic airbag has a slope surface that slopes inward from a side away from the first elastic airbag.
Preferably, a plurality of pressing blocks are further fixed on the inner side of the first elastic airbag, and the pressing blocks are arranged along the inner circumference of the first elastic airbag at equal intervals.
Preferably, the side face, far away from the first elastic bag, of the pressing block is an arc-shaped face, the arc-shaped face and the pressing pipe are concentrically arranged, an anti-skidding convex edge is arranged on the arc-shaped face, and the anti-skidding convex edge is arranged along the circumference of the arc-shaped face.
Preferably, the outer side surface of the first short pipe is provided with a sliding groove, the sliding groove is arranged along the length direction of the first short pipe, the inner side wall of one end, away from the fourth flange, of the compression pipe is correspondingly provided with a sliding block, and the sliding block is in sliding fit with the sliding groove.
Preferably, the first sealing ring is exposed from an end surface of the second end of the connecting pipe.
Preferably, first flange has the fixed orifices, first flange is kept away from the side of connecting pipe still is equipped with the ring groove, the ring groove is located the inboard of fixed orifices, the ring groove with first flange sets up with one heart, the ring inslot is embedded to have the second sealing washer, the second sealing washer exposes the side of first flange.
Preferably, the second flange, the third flange and the fourth flange are respectively provided with a first mounting hole, a second mounting hole and a third mounting hole, the first mounting hole, the second mounting hole and the third mounting hole have the same aperture, and the number of the third mounting holes is two.
Preferably, the first flange, the third flange, the fourth flange and the connecting pipe have the same inner diameter.
Compared with the prior art, the invention has the beneficial effects that: (1) When the annular airbag is used, the end part restraint pipe, the gland and the connecting pipe are sequentially sleeved at the end part of the pipeline, the first short pipe of the gland enters the compaction pipe from one end of the compaction pipe and abuts against the second elastic airbag, so that gas filled in the second elastic airbag is extruded to enter the first elastic airbag through the connecting channel, the first elastic airbag is expanded, the outer side wall of the pipeline is extruded, the end part of the pipeline is restrained, and the pipeline is prevented from falling off; the use is simple and convenient, the clamp bolt is rotationally fastened on the pipeline in a circle without consuming a large amount of time, the installation time is saved, the annular air bag is pre-filled with gas, the second elastic air bag only needs to be extruded, the first elastic air bag is enabled to be expanded, the field inflation is not needed, and the trouble that the inflator needs to be carried in the installation is eliminated. (2) When the pipeline end part constraint pipe is used, only two long bolts are needed to be fixed, the end part constraint pipe is fixed on the second flange, the pipeline can be fixed by the end part constraint pipe, the installation is simple and convenient, the installation time is saved, the length directions of the long bolts and the short bolts are the same as the length direction of the pipeline, the restriction of the pipeline end part constraint pipe under the environment condition of the pipeline is ensured to be small when the end part constraint pipe is installed, the installation work can be better carried out, and the pressure of the pipeline end part constraint can be better ensured to reach the rated pressure. (3) The split type end part constraint pipe, the connecting pipe and the gland structure are adopted, when the device is used, the fourth flange of the end part constraint pipe is detachably fixed on the second flange through the long bolt, when the pipeline does not need end part constraint, the end part constraint pipe can be detached for use, and the application range of the device is expanded. (4) The end part constraint steel fitting is simple in structure, convenient to use, lower in manufacturing cost than the end part constraint steel fitting in the prior art, and convenient to popularize, manufacture and use.
Drawings
FIG. 1 is a schematic view of a prior art end-restrained pipe joint;
FIG. 2 is a schematic view of a pressure rated sealed pipe coupling with end restraint according to the present invention;
FIG. 3 is a perspective view of an annular bladder of an end-restraining, pressure-rated, sealed pipe joint of the present invention;
FIG. 4 is a left side view of the annular bladder of an end-restraining, pressure rated, sealed pipe joint of the present invention;
FIG. 5 isbase:Sub>A cross-sectional view A-A of an end-restrained, pressure-rated sealed pipe joint of the present invention;
FIG. 6 is a schematic perspective view of a gland of an end-restrained nominal pressure sealed pipe joint of the present invention;
fig. 7 is a schematic perspective view of a compression block of an end-restrained pressure rated pipe joint according to the present invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
As shown in fig. 2, an end-constrained pressure-rated sealed pipe joint includes a connecting pipe 100, a gland 200 and an end-constrained pipe 300, where the connecting pipe 100 includes a first end 101 and a second end 102, the first end 101 fixes a first flange 110, an outer sidewall close to the second end 102 is sleeved and fixed with a second flange 120, an inner wall of the second end 102 has a first annular groove 130, the first annular groove 130 is embedded with a first sealing ring 400, the gland 200 is composed of a first short pipe 210, a third flange 220 and a second short pipe 230 that are concentrically fixed in sequence, the second short pipe 230 is sleeved outside the second end 102 of the connecting pipe 100, the end-constrained pipe 300 includes a fourth flange 310 and a pinch pipe 320, the fourth flange 310 is fixed at one end of the pinch pipe 320, an inner sidewall of the pinch pipe 320 has a second annular groove 321, an annular air bag 500 is arranged in the second annular groove 321, the pinch pipe 320 is sleeved outside the first flange 210, the fourth flange 310 is fixed with the second flange 120 through a long bolt 600, and the third flange 700 is fixed with the short pipe 220 through a short bolt 700.
When the pipe joint is used, the end part constraint pipe 300, the gland 200 and the connecting pipe 100 are sequentially sleeved at the end part of the pipeline 1 to install the pipe joint, the first sealing ring 400 is exposed out of the end surface of the second end 102 of the connecting pipe 100, the third flange 220 is fixed with the second flange 120 through the short bolt 700, the third flange 220 extrudes the first sealing ring 400 to deform, the outer wall of the pipeline 1 is sealed, a gap is formed between the outer side of the pipeline 1 and the inner wall of the connecting pipe 100, leakage is prevented, and the pipe joint is ensured to have good sealing performance; meanwhile, the fourth flange 310 of the end portion constraining pipe 300 is fixed on the second flange 120 through the long bolt 600, and is detachably fixed, when the pipeline 1 does not need end portion constraining, the end portion constraining pipe 300 can be detached for use, and the application range of the device is expanded.
In an embodiment, the annular airbag 500 may have an air inlet 510, the compression pipe 320 has a through hole 322, the air inlet 510 is exposed out of the compression pipe through the through hole 322, the air inlet 510 may further have a switch valve, so that the annular airbag 500 may be conveniently inflated through the air inlet 510 when in use, the annular airbag 500 may be ensured to bulge, and the pipeline 1 may be compressed, thereby realizing the restraint of the end of the pipeline 1, ensuring that the pipe joint may be firmly fixed at the end of the pipeline 1, preventing the pipe joint from falling off, ensuring that the pressure reaches the rated pressure by controlling the amount of gas introduced into the annular airbag 500, and simultaneously reducing the probability of deformation of the end of the pipeline 1, and the annular airbag has a simple structure and a low manufacturing cost.
In one embodiment, as shown in fig. 2 to 5, the annular bladder 500 includes a first elastic bladder 510, a second elastic bladder 520 and a connecting passage 530, the first elastic bladder 510 and the second elastic bladder 520 are communicated through the connecting passage 530, the annular bladder 500 is filled with gas, and the first elastic bladder 510 is disposed adjacent to the fourth flange. When the inflatable pneumatic pipe is used, the end part constraint pipe 300, the gland 200 and the connecting pipe 100 are sequentially sleeved at the end part of the pipeline 1, the first short pipe 210 of the gland 200 enters the compaction pipe 320 from one end of the compaction pipe 320 and is fixed on the second flange 120 through the long bolt 600, the length of the first elastic air bag 510, which is far away from the third flange 220, is greater than that of the first short pipe 210, the first short pipe 210 abuts against the second elastic air bag 520, so that the gas filled in the second elastic air bag 520 is extruded to enter the first elastic air bag 510 through the connecting channel 530, the first elastic air bag 510 is expanded, the outer side wall of the pipeline 1 is extruded to constrain the end part of the pipeline 1, the pipeline is prevented from falling off, the amount of air filled in the annular air bag 500 is fixed, the third flange 220 at the end part of the compaction pipe 320 is limited, the position of the end part constraint pipe 300 is ensured, the gas is uniformly filled in the first elastic air bag 510, the first elastic air bag 510 is ensured to be uniformly expanded, the end part of the pipeline 1 is constrained, the pipeline 1 is simply and conveniently used, the time for fastening the pipeline is saved, the installation of the inflatable pneumatic air bag 500, and the inflatable pneumatic air bag is not required for installing the first elastic air bag 500, and the trouble of the inflatable pneumatic air bag is saved.
Preferably, the second elastic airbag 520 has a slope surface 521, and the slope surface 521 is inclined inward from a side away from the first elastic airbag 510. When guaranteeing that first nozzle stub 210 gets into in the pressing pipe 320, can be easier conflict and extrusion second elasticity gasbag 520, use more simple and convenient, the regular deformation of second elasticity gasbag 520 guarantees that second elasticity gasbag 520 is not fragile, improves the quality of product, can increase of service life. And the second elastic airbag 520 wraps and abuts against the outer side face of the first short pipe 210, so that the first short pipe 210 and the compression pipe 320 are firmly connected, the end part restraint pipe 300 is not easy to fall off from the first short pipe 210, the stress of the long bolt 600 is reduced, and the long bolt 600 is prevented from being broken. The thickness of the elastic air bag wall of the slope surface is thicker, so that the second elastic air bag 520 is prevented from being damaged by friction and air leakage.
A plurality of compressing blocks 800 are further fixed on the inner side of the first elastic air bag 510, and the compressing blocks 800 are arranged along the inner circumference of the first elastic air bag 510 at equal intervals. The compact heap 800 compresses tightly pipeline 1, retrains the tip of pipeline 1, and first elasticity gasbag 510 is bloated when avoiding the installation, contacts pipeline 1, receives pipeline 1's friction, causes the phenomenon appearance of damage gas leakage.
As shown in fig. 2 and 7, the side of the pressing block 800 away from the first elastic bag is an arc surface 810, the arc surface 810 and the pressing pipe 320 are concentrically arranged, the end portion constraining pipe 300 can be attached to the pipeline 1 when being installed, the contact area between the pressing block 800 and the pipeline 1 is increased, the end portion of the pipeline 1 is prevented from being deformed at the pressing block 800, the arc surface 810 is provided with an anti-skidding rib 820, and the anti-skidding rib 820 is arranged along the circumference of the arc surface 810. The friction force between the pressing block 800 and the outer wall of the pipeline 1 is increased, and the phenomenon that the pipe joint falls off when in use is avoided.
As shown in fig. 1 and 6, a sliding groove 211 is disposed on an outer side surface of the first short pipe 210, the sliding groove 211 is disposed along a length direction of the first short pipe 210, a sliding block 330 is correspondingly disposed on an inner side wall of an end of the pressing pipe 320 far away from the fourth flange 310, and the sliding block 330 is in sliding fit with the sliding groove 211. When the pipe joint is used, the sliding block 330 slides into the sliding groove 211, so that a limiting effect can be achieved between the compression pipe 320 and the first short pipe 210, the rotation deviation which can occur when the compression pipe 320 and the first short pipe 210 are used for a long time is avoided, and the long bolt 600 is prevented from being broken by the force in the rotation direction to cause the end portion constraint pipe 300 to fall off, so that the pipe joint cannot constrain the end portion of the pipeline 1 to cause the phenomenon that the pipe joint falls off, the second flange 120, the third flange 220 and the fourth flange 310 are respectively provided with the first mounting hole 121, the second mounting hole and the third mounting hole, the first mounting hole 121, the second mounting hole and the third mounting hole are the same in aperture, the third mounting hole on the fourth flange 310 fixed on the compression pipe 320 is also convenient for the limit constraint of the sliding groove 211 and the sliding block 330 to correspond to the first mounting hole 121 of the second flange and the second mounting hole of the third flange 220, and the long bolt 600 is convenient to mount. The number of the third mounting holes is two. Make only need fixed two long bolts during the use, fix the about pipe 300 of tip on second flange 120, alright in order to realize the fixed to the about pipe 300 of tip to pipeline 1, the installation is simple and convenient, save installation time, long bolt 600 is the same with the length direction of pipeline 1 with the length direction of short bolt 700, it is less to receive the restriction of pipeline environmental condition when guaranteeing the about pipe of installation tip, can be better install work, the pressure that can better guarantee the restraint of pipeline tip reaches rated pressure.
The first flange 110, the third flange 220, the fourth flange 310 and the connection pipe 100 have the same inner diameter. When the pipe fitting is used, the end portion constraining pipe 300, the gland 200 and the connecting pipe 100 can be sleeved on the end portion of the pipeline 1, and the pipe fitting is convenient to use.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (10)
1. An end-restrained, pressure-rated, sealed pipe joint characterized by: including the about pipe of connecting pipe, gland and tip, the connecting pipe includes first end and second end, the fixed first flange of first end is close to the lateral wall cover of second end is established and is fixed with the second flange, the inner wall of second end has first annular groove, first annular groove is embedded to have first sealing washer, the gland comprises concentric first nozzle stub, third flange and the second nozzle stub that fixes in proper order, the second nozzle stub cover is established outside the second end of connecting pipe, the about pipe of tip includes fourth flange and compaction pipe, the fourth flange is fixed the one end of compaction pipe, the inside wall of compaction pipe is equipped with the second annular groove, be equipped with annular airbag in the second annular groove, the compaction pipe box is established outside the first nozzle stub, the fourth flange pass through the long bolt with the second flange is fixed, the third flange pass through the short bolt with the second flange is fixed.
2. An end-restrained, pressure-rated, sealed pipe joint as claimed in claim 1, wherein: the annular air bag comprises a first elastic air bag, a second elastic air bag and a connecting channel, the first elastic air bag and the second elastic air bag are communicated through the connecting channel, gas is filled into the annular air bag, and the first elastic air bag is close to the fourth flange.
3. An end-restrained, pressure-rated, sealed pipe joint as claimed in claim 2, wherein: the second elastic airbag is provided with a slope surface, and the slope surface inclines inwards from one side far away from the first elastic airbag.
4. An end-restrained, pressure-rated, sealed pipe joint as claimed in claim 2, wherein: a plurality of pressing blocks are further fixed on the inner side of the first elastic air bag, and the pressing blocks are arranged along the inner side circumference of the first elastic air bag at equal intervals.
5. An end-restrained, pressure-rated, sealed pipe joint as claimed in claim 4, wherein: the side face, far away from the first elastic bag, of the pressing block is an arc-shaped face, the arc-shaped face and the pressing pipe are concentrically arranged, an anti-skidding convex edge is arranged on the arc-shaped face, and the anti-skidding convex edge is arranged along the circumference of the arc-shaped face.
6. An end-restrained, pressure-rated, sealed pipe joint as claimed in claim 1, wherein: the outer side surface of the first short pipe is provided with a sliding groove, the sliding groove is arranged along the length direction of the first short pipe, the inner side wall of one end, away from the fourth flange, of the pressing pipe is correspondingly provided with a sliding block, and the sliding block is in sliding fit with the sliding groove.
7. An end-restrained, pressure-rated, sealed pipe joint as claimed in claim 1, wherein: the first sealing ring is exposed out of the end face of the second end of the connecting pipe.
8. An end-restrained, pressure-rated, sealed pipe joint as claimed in claim 1, wherein: first flange has the fixed orifices, first flange is kept away from the side of connecting pipe still is equipped with the circular ring groove, the circular ring groove is located the inboard of fixed orifices, the circular ring groove with first flange sets up with one heart, the circular ring inslot is embedded to have the second sealing washer, the second sealing washer exposes the side of first flange.
9. An end-restrained, pressure-rated, sealed pipe joint as claimed in claim 1, wherein: the second flange, the third flange and the fourth flange are respectively provided with a first mounting hole, a second mounting hole and a third mounting hole, the first mounting hole, the second mounting hole and the third mounting hole are the same in aperture, and the number of the third mounting holes is two.
10. An end-restrained, pressure-rated, sealed pipe joint as claimed in claim 1, wherein: the inner diameters of the first flange, the third flange, the fourth flange and the connecting pipe are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211305021.5A CN115539725B (en) | 2022-10-24 | 2022-10-24 | Rated pressure seal pipe joint with constrained end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211305021.5A CN115539725B (en) | 2022-10-24 | 2022-10-24 | Rated pressure seal pipe joint with constrained end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115539725A true CN115539725A (en) | 2022-12-30 |
| CN115539725B CN115539725B (en) | 2024-01-23 |
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ID=84718809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211305021.5A Active CN115539725B (en) | 2022-10-24 | 2022-10-24 | Rated pressure seal pipe joint with constrained end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115539725B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005012296U1 (en) * | 2005-08-02 | 2005-10-20 | Bdg Apparatebau Becker + Gehrmann Gmbh | Pipe connection, comprising stop element for avoiding unintentional separation during adjustment |
| CN210050427U (en) * | 2018-12-28 | 2020-02-11 | 郑州市荣兴实业有限公司 | Expansion joint for pipeline |
| CN210344661U (en) * | 2019-08-01 | 2020-04-17 | 大连中惠灌溉设备有限公司 | Angle-adjustable water delivery elbow |
| CN211501978U (en) * | 2019-12-20 | 2020-09-15 | 江苏奎泽机械工业有限公司 | B2F double-flange limit compensation expansion joint |
| CN212900267U (en) * | 2021-03-02 | 2021-04-06 | 天津市良泰阀门有限公司 | Cast steel flange force transmission joint |
| CN217559294U (en) * | 2022-04-19 | 2022-10-11 | 无锡惠玺流体设备科技有限公司 | Flange gland loose sleeve compensation joint |
-
2022
- 2022-10-24 CN CN202211305021.5A patent/CN115539725B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005012296U1 (en) * | 2005-08-02 | 2005-10-20 | Bdg Apparatebau Becker + Gehrmann Gmbh | Pipe connection, comprising stop element for avoiding unintentional separation during adjustment |
| CN210050427U (en) * | 2018-12-28 | 2020-02-11 | 郑州市荣兴实业有限公司 | Expansion joint for pipeline |
| CN210344661U (en) * | 2019-08-01 | 2020-04-17 | 大连中惠灌溉设备有限公司 | Angle-adjustable water delivery elbow |
| CN211501978U (en) * | 2019-12-20 | 2020-09-15 | 江苏奎泽机械工业有限公司 | B2F double-flange limit compensation expansion joint |
| CN212900267U (en) * | 2021-03-02 | 2021-04-06 | 天津市良泰阀门有限公司 | Cast steel flange force transmission joint |
| CN217559294U (en) * | 2022-04-19 | 2022-10-11 | 无锡惠玺流体设备科技有限公司 | Flange gland loose sleeve compensation joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115539725B (en) | 2024-01-23 |
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