CN115539725B - Rated pressure seal pipe joint with constrained end - Google Patents
Rated pressure seal pipe joint with constrained end Download PDFInfo
- Publication number
- CN115539725B CN115539725B CN202211305021.5A CN202211305021A CN115539725B CN 115539725 B CN115539725 B CN 115539725B CN 202211305021 A CN202211305021 A CN 202211305021A CN 115539725 B CN115539725 B CN 115539725B
- Authority
- CN
- China
- Prior art keywords
- flange
- pipe
- air bag
- compression
- elastic air
- 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.)
- Active
Links
- 230000006835 compression Effects 0.000 claims abstract description 49
- 238000007906 compression Methods 0.000 claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 210000004907 gland Anatomy 0.000 claims abstract description 17
- 238000005056 compaction Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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
-
- 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
Landscapes
- 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 constraint rated pressure sealing pipe joint which comprises a connecting pipe, a gland and an end constraint pipe, wherein a first flange and a second flange are fixed on the connecting pipe, the gland is formed by 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 constraint pipe comprises a fourth flange and a compression pipe, the fourth flange is fixed at one end of the compression pipe, a second annular groove is formed in the inner side wall of the compression pipe, an annular air bag is arranged in the second annular groove, the compression 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 invention is used, only two long bolts are needed to be fixed, and the end constraint pipe is fixed on the second flange, so that the fixation of the end constraint pipe on the pipeline can be realized, the installation is simple and convenient, and the installation time is saved; the restriction of the pipeline environment condition is small when the end 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 a rated pressure sealing pipe joint with constrained ends.
Background
The pipe joint is a connecting tool between pipelines and is a detachable connecting point between an element and the pipeline. Plays an indispensable important role in the pipe fitting.
The existing pipeline can have the phenomena of joint falling, pipeline end deformation and the like in the actual use process, so that some pipe joints are provided with end constraint steel fittings, as shown in fig. 1, the end constraint steel fittings specifically comprise compression rings, compression bolts and end constraint pressing blocks, the compression rings are fixed on flange press covers of the pipe joints, screw holes are formed in the compression rings, the compression bolts are fixed in the screw holes through threaded connection, end constraint blocks are arranged at the ends of the compression bolts, the end constraint blocks are arranged in the compression rings and are provided with limiting rings, all the compression bolts rotate to the positions of the limiting rings, the compression bolts press the pipeline by abutting against the end constraint blocks, and the ends of the pipeline are constrained and guaranteed to be rated pressure; however, the following problems mainly exist in the prior art:
firstly, in the prior art, the compression bolt and the end constraint block are arranged along one circle of the compression ring, and when the pipe joint is used, the whole installation can be completed only by rotating the compression bolt for one circle to the limiting ring, so that 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 in a circle, and when the compression bolt is perpendicular to the direction of a duct of a pipeline, a space is required to be arranged on the outer side of the circumference of the limiting ring to rotate the compression bolt for compaction and fixation, however, in the actual installation process of the pipeline, the requirement cannot be always met, for example, the clearance below the pipeline is small, the screwing work of the bolt cannot be carried out by using a tool below the pipeline, and the rated pressure cannot be reached when the end part of the pipeline is restrained;
thirdly, the existing end constraint steel fittings are often directly fixed with the pipe joint and cannot be detached, when the pipe joint with the end constraint is not needed in the actual use process, the pipe joint cannot be used, and the application range is narrow;
fourth, the existing end constraint sealing pipe joint is complex in structure and high in manufacturing cost.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an end-restrained rated pressure sealing pipe joint.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a rated pressure sealed tube joint of tip constraint, includes connecting pipe, gland and tip constraint pipe, the connecting pipe includes first end and second end, first flange is fixed to 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 embeds has first sealing washer, the gland comprises first nozzle stub, third flange and the second nozzle stub that are fixed in proper order with one heart, the second nozzle stub is established outside the second end of connecting pipe, tip constraint pipe includes fourth flange and compresses tightly the pipe, the fourth flange is fixed compress tightly the one end of pipe, the inside wall of compressing tightly the pipe is equipped with the second annular groove, be equipped with annular gasbag in the second annular groove, the compress tightly the pipe is established outside the first nozzle stub, the fourth flange passes through the long bolt with the second flange is fixed, the third flange passes through the short bolt with the second flange is fixed.
Preferably, the annular air bag comprises a first elastic air bag, a second elastic air bag and a connecting channel, wherein the first elastic air bag is communicated with the second elastic air bag through the connecting channel, the annular air bag is filled with air, and the first elastic air bag is close to the fourth flange.
Preferably, the second elastic balloon has a slope surface that is inclined inward from a side away from the first elastic balloon.
Preferably, the inner side of the first elastic air bag is also fixed with a plurality of compacting blocks, and the compacting blocks are equidistantly arranged along the circumference of the inner side of the first elastic air bag.
Preferably, the side surface of the compaction block, which is far away from the first elastic bag, is an arc surface, the arc surface and the compaction pipe are concentrically arranged, an anti-slip convex rib is arranged on the arc surface, and the anti-slip convex rib is arranged along the circumference of the arc surface.
Preferably, the lateral surface of first nozzle stub is equipped with the spout, the spout is followed the length direction setting of first nozzle stub, compress tightly the pipe and keep away from the inside wall correspondence of the one end of fourth flange is equipped with the slider, the slider with spout sliding fit.
Preferably, the first seal ring exposes an end face of the second end of the connection pipe.
Preferably, the first flange is provided with a fixing hole, the side surface of the first flange, which is far away from the connecting pipe, is also provided with a circular ring groove, the circular ring groove is positioned at the inner side of the fixing hole, the circular ring groove and the first flange are concentrically arranged, a second sealing ring is embedded in the circular ring groove, and the second sealing ring is exposed out of the side surface of the 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 apertures of the first mounting hole, the second mounting hole and the third mounting hole are the same, 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 air bag is used, the end constraint pipe, the gland and the connecting pipe are sleeved on the end part of the pipeline in sequence, and the first short pipe of the gland enters the compression pipe from one end of the compression pipe and is abutted against the second elastic air bag, so that gas filled in the second elastic air bag is extruded to enter the first elastic air bag through the connecting channel, the first elastic air bag bulges, the outer side wall of the pipeline is extruded, the end part of the pipeline is constrained, and the pipeline is prevented from falling off; the novel inflation device is simple and convenient to use, the compression bolt is not required to be rotated and fastened on a pipeline in a circle in a large amount of time, the installation time is saved, the annular air bag is pre-inflated, the second elastic air bag is only required to be extruded, the first elastic air bag is inflated, the on-site inflation is not required, and the trouble that the inflation device needs to be carried in installation is omitted. (2) When the invention is used, only two long bolts are required to be fixed, the end constraint pipe is fixed on the second flange, so that the end constraint pipe can be fixed on a pipeline, 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 constraint of the pipeline environment condition when the end constraint pipe is installed is less, the installation work can be better performed, and the pressure of the end constraint of the pipeline can be better ensured to reach the rated pressure. (3) The invention adopts a split type end constraint pipe, a connecting pipe and a gland structure, when in use, the fourth flange of the end constraint pipe is detachably fixed on the second flange through the long bolt, and when the pipeline does not need end constraint, the end constraint pipe can be detached for use, thereby expanding the application range of the device. (4) The end constraint pipe provided by the invention has a simple structure, is convenient to use, has lower manufacturing cost than the end constraint steel fittings in the prior art, and is convenient to popularize, manufacture and use.
Drawings
FIG. 1 is a schematic view of a prior art end-restraining adapter;
FIG. 2 is a schematic view of the structure of an end-restrained rated pressure seal pipe joint of the present invention;
FIG. 3 is a schematic perspective view of an annular bladder of an end-restrained pressure-rated sealed pipe joint of the present invention;
FIG. 4 is a left side view of an annular bladder of an end-restraining rated pressure seal pipe joint of the present invention;
FIG. 5 is a cross-sectional view of A-A of an end-on pressure-rated seal pipe joint of the present invention;
FIG. 6 is a schematic perspective view of a gland of an end-restrained rated pressure seal tube fitting of the present invention;
fig. 7 is a schematic perspective view of a compression block of an end-restrained rated pressure seal pipe joint according to the present invention.
Detailed Description
For a further understanding of the objects, construction, features, and functions of the invention, reference should be made to the following detailed description of the preferred embodiments.
Referring to fig. 2, an end-constrained rated pressure sealing pipe joint comprises a connecting pipe 100, a gland 200 and an end constraint pipe 300, wherein the connecting pipe 100 comprises a first end 101 and a second end 102, the first end 101 is fixedly provided with a first flange 110, a second flange 120 is sleeved and fixed on the outer side wall close to the second end 102, the inner wall of the second end 102 is provided with a first annular groove 130, a first sealing ring 400 is embedded in the first annular groove 130, the gland 200 is composed of a first short pipe 210, a third flange 220 and a second short pipe 230 which are concentrically and sequentially fixed, the second short pipe 230 is sleeved outside the second end 102 of the connecting pipe 100, the end constraint pipe 300 comprises a fourth flange 310 and a compression pipe 320, the fourth flange 310 is fixed on one end of the compression pipe 320, the inner side wall of the compression pipe 320 is provided with a second annular groove 321, an annular air bag 500 is arranged in the second annular groove 321, the compression pipe 320 is sleeved outside the first short pipe 210, the fourth flange 310 is fixedly connected with the second flange 220 and the third flange 120 is fixedly connected with the second flange 120 through a long bolt 600.
When the pipe joint is used, the end constraint pipe 300, the gland 200 and the connecting pipe 100 are sequentially sleeved at the end part of the pipeline 1 to mount 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 presses the first sealing ring 400 to deform, the outer wall of the pipeline 1 is sealed, a gap is prevented from being formed between the outer side of the pipeline 1 and the inner wall of the connecting pipe 100, leakage is prevented, and good sealing performance of the pipe joint is ensured; meanwhile, the fourth flange 310 of the end constraint tube 300 is fixed on the second flange 120 through the long bolt 600, so that the end constraint tube 300 can be disassembled for use when the end constraint is not needed for the pipeline 1, and the application range of the device is enlarged.
In an embodiment, the annular air bag 500 may have an air inlet interface 510, the compression tube 320 has a through hole 322, the air inlet interface 510 exposes out of the compression tube through the through hole 322, and the air inlet interface 510 may be further provided with a switch valve, so that the annular air bag 500 is inflated through the air inlet interface 510 when in use, the annular air bag 500 is enabled to bulge, the pipeline 1 is compressed, thereby restraining the end of the pipeline 1, ensuring that the pipe joint can be firmly fixed at the end of the pipeline 1, preventing falling, ensuring that the pressure reaches the rated pressure by controlling the amount of gas introduced into the annular air bag 500, and simultaneously reducing the probability of deformation of the end of the pipeline 1.
In an embodiment, as shown in fig. 2-5, the annular air bag 500 includes a first elastic air bag 510, a second elastic air bag 520, and a connection channel 530, where the first elastic air bag 510 and the second elastic air bag 520 are communicated through the connection channel 530, the annular air bag 500 is inflated with air, and the first elastic air bag 510 is disposed near the fourth flange. When the device is used, the end constraint tube 300, the gland 200 and the connecting tube 100 are sequentially sleeved at the end of the pipeline 1, the first short tube 210 of the gland 200 enters the compression tube 320 from one end of the compression tube 320 and is fixed on the second flange 120 through the long bolt 600, the first elastic air bag 510 is longer than the first short tube 210 in length from the third flange 220, the first short tube 210 abuts against the second elastic air bag 520, 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 bulges, the outer side wall of the pipeline 1 is extruded, the end of the pipeline 1 is constrained, the pipeline is prevented from falling off, the air filled in the annular air bag 500 is fixed, the end of the compression tube 320 abuts against the third flange 220, the position of the compression tube 320 is limited, after the end constraint tube 300 is fixed, the gas is uniformly filled in the first elastic air bag 510, the end of the pipeline 1 is constrained, the air bag 510 is uniformly bulged, the air bag is not required to be compressed, a large amount of time is consumed to rotate and the pipeline 1 is fastened through the connecting channel 530, the air bag is not required to be installed in a circle, the annular air bag 500 is not required to be inflated, and the inflation device is not required to be installed.
Preferably, the second elastic balloon 520 has a slope surface 521, and the slope surface 521 is inclined inward from a side away from the first elastic balloon 510. When guaranteeing that first nozzle stub 210 gets into and compresses tightly in the pipe 320, can be easier contradict and extrude second elasticity gasbag 520, use simpler and more convenient, second elasticity gasbag 520 regular deformation guarantees that second elasticity gasbag 520 is not fragile, improves the quality of product, can prolong the live time. And the second elastic air bag 520 wraps and abuts against the outer side surface of the first short tube 210, so that the first short tube 210 and the compression tube 320 are firmly connected, the end constraint tube 300 is not easy to fall off from the first short tube 210, the stress of the long bolt 600 is reduced, and the breakage of the long bolt 600 is avoided. 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.
The inner side of the first elastic air bag 510 is further fixed with a plurality of pressing blocks 800, and the pressing blocks 800 are equidistantly arranged along the circumference of the inner side of the first elastic air bag 510. The compression block 800 compresses the pipe 1 to restrain the end of the pipe 1, so that the first elastic air bag 510 is prevented from swelling during installation, contacting the pipe 1, being rubbed by the pipe 1, and causing damage and air leakage.
As shown in fig. 2 and fig. 7, the side surface of the compression block 800 away from the first elastic bag is an arc surface 810, the arc surface 810 and the compression tube 320 are concentrically arranged, the end constraint tube 300 can be attached to the pipeline 1 during installation, the contact area between the compression block 800 and the pipeline 1 is increased, the deformation of the end of the pipeline 1 at the compression block 800 is avoided, an anti-slip rib 820 is arranged on the arc surface 810, and the anti-slip rib 820 is arranged along the circumference of the arc surface 810. The friction force between the compression block 800 and the outer wall of the pipeline 1 is increased, and the phenomenon that the pipe joint falls off during use is avoided.
As shown in fig. 1 and 6, the outer side surface of the first short tube 210 is provided with a sliding groove 211, the sliding groove 211 is disposed along the length direction of the first short tube 210, the inner side wall of the end of the compressing tube 320 away from the fourth flange 310 is correspondingly provided with a sliding block 330, and the sliding block 330 is in sliding fit with the sliding groove 211. Guarantee when using, slide in spout 211 through slider 330, can play limiting displacement between compressing tightly 320 and first nozzle stub 210, avoid compressing tightly 320 and first nozzle stub 210 and can take place rotatory skew when long-term use, avoid long bolt 600 to receive the power of direction of rotation, take place to break, cause tip constraint pipe 300 to drop for this coupling can't retrain pipeline 1 tip, lead to the phenomenon that the coupling drops, be equipped with first mounting hole 121, second mounting hole and third mounting hole on second flange 120, third flange 220 and the fourth flange 310 respectively, first mounting hole 121, second mounting hole and the aperture of third mounting hole is the same, and spout 211 is corresponding with the first mounting hole 121 of second flange and the second mounting hole of third flange 220 with the spacing constraint of slider 330 on the fourth flange 310 that is fixed also convenient compressing tightly 320, and long bolt 600 passes first mounting hole 121, second mounting hole and third mounting hole, convenient installation long bolt 600. The number of the third mounting holes is two. When the device is used, only two long bolts are required to be fixed, the end constraint pipe 300 is fixed on the second flange 120, the end constraint pipe 300 can be fixed on the pipeline 1, the device is simple and convenient to install, the installation time is saved, the length direction of the long bolts 600 and the length direction of the short bolts 700 are identical to the length direction of the pipeline 1, the constraint of the pipeline environment condition when the end constraint pipe is installed is ensured to be smaller, the installation work can be better carried out, and the pressure constrained by the end of the pipeline can be better ensured to reach the rated pressure.
The first flange 110 has a fixing hole 111, a circular ring groove 112 is further provided on a side surface of the first flange 110 away from the connecting pipe 100, the circular ring groove 112 is located at an inner side of the fixing hole 111, the circular ring groove 112 and the first flange 110 are concentrically arranged, a second sealing ring 113 is embedded in the circular ring groove 112, and the second sealing ring 113 is exposed out of the side surface of the first flange 110. The first flange 110 is ensured to have good sealing performance when being connected with the flange of another pipeline in use, so that the leakage of medium transported in the pipeline is avoided, and the quality of pipeline connection is improved.
The first flange 110, the third flange 220, the fourth flange 310, and the connection pipe 100 have the same inner diameter. The end constraint tube 300, the gland 200 and the connecting tube 100 can be sleeved at the end of the pipeline 1 when in use, and the use is convenient.
The invention has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (8)
1. An end-constrained rated pressure seal pipe joint, characterized by: the connecting pipe comprises a first end and a second end, wherein the first end is fixedly provided with a first flange, the outer side wall close to the second end is sleeved with and fixedly provided with a second flange, the inner wall of the second end is provided with a first annular groove, a first sealing ring is embedded in the first annular groove, the gland consists 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 constraint pipe comprises a fourth flange and a compression pipe, the fourth flange is fixedly arranged at one end of the compression pipe, the inner side wall of the compression pipe is provided with a second annular groove, an annular air bag is arranged in the second annular groove, the compression pipe is sleeved outside the first short pipe, the fourth flange is fixedly connected with the second flange through a long bolt, and the third flange is fixedly connected with the second flange through a short bolt; the annular air bag comprises a first elastic air bag, a second elastic air bag and a connecting channel, wherein the first elastic air bag and the second elastic air bag are communicated through the connecting channel, gas is filled in the annular air bag, and the first elastic air bag is close to the fourth flange; the second elastic air bag is provided with a slope surface which is inclined inwards from one side far away from the first elastic air bag; when the elastic air bag is used, the end constraint 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 compression pipe from one end of the compression pipe and is fixed on the second flange through the long bolt, the length of the first elastic air bag, which is away from the third flange, is larger than that of the first short pipe, and the first short pipe abuts against the second elastic air bag.
2. An end-restraining rated pressure seal pipe joint as defined in claim 1, wherein: the inner side of the first elastic air bag is also fixedly provided with a plurality of compression blocks, and the compression blocks are arranged along the circumference of the inner side of the first elastic air bag at equal intervals.
3. An end-restraining rated pressure seal pipe joint as defined in claim 2, wherein: the lateral surface of the compaction block, which is far away from the first elastic air bag, is an arc surface, the arc surface and the compaction pipe are concentrically arranged, an anti-slip convex rib is arranged on the arc surface, and the anti-slip convex rib is arranged along the circumference of the arc surface.
4. An end-restraining rated pressure seal pipe joint as defined in claim 1, wherein: the lateral surface of first nozzle stub is equipped with the spout, the spout is followed the length direction setting of first nozzle stub, compress tightly the pipe and keep away from the inside wall correspondence of the one end of fourth flange is equipped with the slider, the slider with spout sliding fit.
5. An end-restraining rated pressure seal pipe joint as defined in claim 1, wherein: the first sealing ring exposes the end face of the second end of the connecting pipe.
6. An end-restraining rated pressure seal pipe joint as defined in claim 1, wherein: the first flange is provided with a fixing hole, the side surface of the first flange, which is far away from the connecting pipe, is also provided with a circular ring groove, the circular ring groove is positioned at the inner side of the fixing hole, the circular ring groove and the first flange are concentrically arranged, a second sealing ring is embedded in the circular ring groove, and the second sealing ring is exposed out of the side surface of the first flange.
7. An end-restraining rated pressure seal pipe joint as defined in claim 1, wherein: the first mounting holes, the second mounting holes and the third mounting holes are respectively formed in the second flange, the third flange and the fourth flange, the apertures of the first mounting holes, the second mounting holes and the third mounting holes are the same, and the number of the third mounting holes is two.
8. An end-restraining rated pressure seal pipe joint as defined in claim 1, wherein: the first flange, the third flange, the fourth flange and the connecting pipe have the same inner diameter.
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 CN115539725A (en) | 2022-12-30 |
| CN115539725B true CN115539725B (en) | 2024-01-23 |
Family
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 |
|---|---|
| CN115539725A (en) | 2022-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110998159B (en) | Movable joint | |
| CN114413079A (en) | Plastic double-wall corrugated pipeline anti-drop self-sealing connection socket joint | |
| CN114396521B (en) | Detachable anti-drop self-sealing connection method and structure for corrugated pipeline | |
| CN115539725B (en) | Rated pressure seal pipe joint with constrained end | |
| CN213576197U (en) | Pipe end sealing structure | |
| CN212254911U (en) | Pipeline pressure testing device and pipeline pressure testing assembly | |
| CN114776900A (en) | Self-locking sealing pipeline connecting device | |
| CN212775800U (en) | Small-size water conservancy valve | |
| CN208939490U (en) | A kind of cable tube plugging device | |
| CN216112294U (en) | Vacuum ball valve | |
| CN208331493U (en) | A kind of pressure tapping | |
| CN220527666U (en) | Double-horn-mouth FT type cable joint | |
| CN220930437U (en) | Copper joint with good sealing performance on refrigerator | |
| CN220228183U (en) | Quick sealing connecting component for corrugated pipe | |
| CN108533208B (en) | Elastic gas sealing gasket for air seal of common screw thread oil pipe and sealing method | |
| CN219571022U (en) | Valve sealing structure | |
| CN113915371A (en) | Vacuum ball valve | |
| CN220816876U (en) | Gas circuit crossover sub convenient to installation | |
| CN219606391U (en) | Pressure test plug with good filling effect | |
| CN220082109U (en) | End cover sealing structure of fire extinguishing device | |
| CN215410719U (en) | Buckling-free pressing connector for nitrogen spring sealed pipeline system | |
| CN218954018U (en) | Core-pulling extrusion sealing mechanism | |
| CN214280749U (en) | Temporary plugging device for cable pipeline | |
| CN218455037U (en) | Pipeline connecting structure | |
| CN214947119U (en) | High-pressure sealing flange |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |