CN113404950B - Overlap joint flange - Google Patents
Overlap joint flange Download PDFInfo
- Publication number
- CN113404950B CN113404950B CN202110555585.3A CN202110555585A CN113404950B CN 113404950 B CN113404950 B CN 113404950B CN 202110555585 A CN202110555585 A CN 202110555585A CN 113404950 B CN113404950 B CN 113404950B
- Authority
- CN
- China
- Prior art keywords
- flange
- plate
- hole
- sealing washer
- sealing ring
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 71
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 16
- 239000001569 carbon dioxide Substances 0.000 claims description 16
- 238000001125 extrusion Methods 0.000 claims description 8
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
-
- 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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
-
- 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
- F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention relates to the technical field of pipeline connectors, in particular to a lap joint flange, which comprises a first flange plate and a second flange plate, wherein the upper surface of the first flange plate is provided with a limit groove and a guide groove, the inner wall of the limit groove is provided with a sealing ring, the lower surface of the second flange plate is fixedly connected with a guide block, the guide block is matched with the guide groove, the upper surface of the second flange plate is fixedly connected with a plug connector, and the inner wall of the plug connector is slidably connected with a baffle plate.
Description
Technical Field
The invention relates to the technical field of pipeline connectors, in particular to a lap joint flange.
Background
The flange is a part for connecting pipes and is used for connecting the pipe ends; the flange is also used on an inlet and an outlet of equipment, is used for connecting two pieces of equipment, such as a speed reducer flange, a flange connection or a flange joint, and refers to detachable connection formed by mutually connecting the flange, a gasket and a bolt as a group of combined sealing structures.
The existing flange uses a gasket to prevent leakage, and due to irregular butt joint or vibration of the flange, the gasket position can deviate, leakage cannot be effectively prevented, the leakage amount of a pipeline is increased, water resources are wasted, and the sealing ring deforms due to long-time extrusion, so that the sealing effect is reduced. Accordingly, one skilled in the art would provide a lap joint flange to solve the problems set forth in the background above.
Disclosure of Invention
The invention aims to provide a lap joint flange, which solves the problems that the positions of gaskets are offset and leakage cannot be effectively prevented due to irregular butt joint or vibration of the flange, the leakage amount of a pipeline is increased, water resources are wasted and the sealing ring is deformed due to long-time extrusion, so that the sealing effect is reduced.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a lap joint flange, includes first ring flange and second ring flange, spacing groove and guide way have been seted up to the upper surface of first ring flange, the inner wall of spacing groove is provided with the sealing washer, the lower fixed surface of second ring flange is connected with the guide block, guide block and guide way looks adaptation, the upper surface fixedly connected with plug connector of second ring flange, the inner wall sliding connection of plug connector has the baffle.
As a further scheme of the invention: the first flange plate comprises a first plate body, straight threaded holes are formed in the upper surface of the first plate body, the number of the straight threaded holes is four, the four straight threaded holes are circumferentially equidistant in the circumferential array and are formed in the upper surface of the first plate body, a first through hole is formed in the central position of the upper surface of the first plate body, the first flange plate can be conveniently connected with the second flange plate through the arrangement of the straight threaded holes, and the first flange plate can be welded with an external pipeline through the arrangement of the first through holes.
As still further aspects of the invention: the second ring flange includes the second disk body, countersunk head bolt hole has been seted up to the upper surface of second disk body, countersunk head bolt hole is corresponding with the position of plug connector, and countersunk head bolt hole's internal diameter is less than the width of plug connector, the second through-hole has been seted up to the upper surface of second disk body, through setting up countersunk head bolt hole, can conveniently be connected with first ring flange, through setting up the second through-hole, can weld the pipeline that external needs butt joint.
As still further aspects of the invention: the plug connector includes the limiting plate with second ring flange upper surface fixed connection, one side fixedly connected with deflector of second through-hole is kept away from to the limiting plate, the surface of limiting plate and deflector is all set up flutedly, and recess and baffle looks adaptation, through setting up limiting plate and deflector, can prevent that the baffle from taking place the skew.
As still further aspects of the invention: the cross section of spacing groove is trapezoidal and with sealing washer looks adaptation, the material of sealing washer is chloroprene rubber, the cross section of sealing washer is the waist drum shape, and the inside annular hole that is equipped with of sealing washer, the annular downthehole carbonic acid solution that has is filled, and this carbonic acid solution can produce carbon dioxide gas when receiving vibrations, through filling carbonic acid solution in the inside annular hole of sealing washer, can accelerate the carbon dioxide precipitation in the carbonic acid solution under the circumstances that high temperature or water led flange to vibrate, carbon dioxide makes the sealing washer expansion of waist drum shape cross-section, then the sealing washer extrusion trapezoidal cross-section's spacing groove, the leakproofness has been improved, carbon dioxide can slowly dissolve in liquid under the circumstances of low temperature or no water, the sealing washer shrink, then the motion of expansion and shrink can be carried out to the sealing washer under the circumstances of four seasons temperature change and water or no water, deformation because of long-time extrusion sealing washer produces has been prevented.
As still further aspects of the invention: the upper surface of baffle keeps away from the position fixedly connected with of limiting plate and detains the piece, through setting up detaining the piece, can facilitate the use and take out the baffle.
As still further aspects of the invention: the inner wall threaded connection of countersunk head bolt hole has countersunk head bolt, countersunk head bolt's surface and the inner wall threaded connection of straight screw hole, countersunk head bolt's upper surface and the upper surface parallel and level of second ring flange through setting up countersunk head bolt, can make first ring flange and second ring flange form detachable connection.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the first flange plate and the second flange plate can be welded with pipelines which are required to be butted with the outside respectively, the first flange plate and the second flange plate can be butted and leveled by arranging the guide groove and the guide block, so that the deviation error is prevented from being generated, the position deviation of the sealing ring is further prevented, and the limit groove is arranged, so that the sealing ring is prevented from being deviated due to vibration, the lap joint flange can effectively prevent leakage, reduce the leakage quantity of pipelines and save water resources.
2. According to the invention, the first flange plate and the second flange plate can be conveniently connected by arranging the straight threaded holes, and the first through holes can be welded with an external pipeline; the countersunk bolt holes are formed, so that the pipe can be conveniently connected with the first flange plate, and the second through holes are formed, so that the outside pipes needing to be butted can be welded; through setting up limiting plate and deflector, can prevent that the baffle from taking place the skew.
3. According to the invention, the carbonic acid solution is filled in the annular hole in the sealing ring, so that carbon dioxide in the carbonic acid solution can be accelerated to be separated out under the condition that the flange vibrates at high temperature or through water, the sealing ring with the waist drum-shaped section is expanded by the carbon dioxide, so that the sealing ring extrudes the limit groove with the trapezoid section, the sealing performance is improved, the sealing ring is made of neoprene, the influence of the carbonic acid solution on the sealing ring due to corrosion of the sealing ring and high-low temperature change is prevented, when the sealing ring is contracted, the carbon dioxide can be slowly dissolved in liquid under the condition of low temperature or no water, and the sealing ring can be expanded and contracted under the condition of change of four seasons air temperature and water or no water, so that the deformation caused by long-time extrusion of the sealing ring is prevented; the buckling blocks are arranged, so that the baffle plate can be conveniently pulled out; through setting up countersunk head bolt, can make first ring flange and second ring flange form detachable connection.
Drawings
FIG. 1 is a schematic diagram of the front view of the structure of the present invention;
FIG. 2 is a schematic diagram of an explosion of the structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the structure of the present invention;
FIG. 4 is an enlarged schematic view of the structure A in FIG. 3 according to the present invention
Fig. 5 is a cross-sectional view of a seal ring of the present invention.
In the figure: 1. a first flange; 101. a first tray; 102. a straight threaded hole; 103. a first through hole; 2. a second flange; 201. a second tray body; 202. countersunk bolt holes; 203. a second through hole; 3. a limit groove; 4. a guide groove; 5. a seal ring; 501. an annular hole; 6. countersunk head bolts; 7. a plug-in component; 701. a limiting plate; 702. a guide plate; 703. a groove; 8. a baffle; 9. a guide block; 10. and a buckling block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 5, in the embodiment of the invention, an overlap joint flange comprises a first flange plate 1 and a second flange plate 2, wherein a limit groove 3 and a guide groove 4 are formed in the upper surface of the first flange plate 1, a sealing ring 5 is arranged on the inner wall of the limit groove 3, a guide block 9 is fixedly connected to the lower surface of the second flange plate 2, the guide block 9 is matched with the guide groove 4, an inserting piece 7 is fixedly connected to the upper surface of the second flange plate 2, a baffle plate 8 is slidingly connected to the inner wall of the inserting piece 7, the first flange plate 1 and the second flange plate 2 can be welded with pipelines which need to be in butt joint respectively, the first flange plate 1 and the second flange plate 2 can be in butt joint leveling through the guide groove 4 and the guide block 9, offset errors are prevented, further, position deviation of the sealing ring 5 is prevented, the sealing ring 5 is prevented from being offset due to vibration through the arrangement of the limit groove 3, leakage of the overlap joint flange can be effectively prevented, and water resources are saved.
The first flange plate 1 comprises a first plate body 101, straight threaded holes 102 are formed in the upper surface of the first plate body 101, the number of the straight threaded holes 102 is four, the four straight threaded holes 102 are circumferentially arranged on the upper surface of the first plate body 101 at equal intervals in a circumferential array, a first through hole 103 is formed in the central position of the upper surface of the first plate body 101, the first flange plate 1 can be conveniently connected with the second flange plate 2 through the arrangement of the straight threaded holes 102, and the first flange plate can be welded with an external pipeline through the arrangement of the first through holes 103; the second flange plate 2 comprises a second plate body 201, a countersunk bolt hole 202 is formed in the upper surface of the second plate body 201, the countersunk bolt hole 202 corresponds to the position of the plug connector 7, the inner diameter of the countersunk bolt hole 202 is smaller than the width of the plug connector 7, a second through hole 203 is formed in the upper surface of the second plate body 201, the second flange plate can be conveniently connected with the first flange plate 1 through the countersunk bolt hole 202, and a pipeline which needs to be butted outside can be welded through the second through hole 203; the plug connector 7 includes the limiting plate 701 of fixed surface connection on with the second ring flange 2, and one side fixedly connected with deflector 702 of second through-hole 203 is kept away from to limiting plate 701, and recess 703 has all been seted up on limiting plate 701 and deflector 702's surface, and recess 703 and baffle 8 looks adaptation, through setting up limiting plate 701 and deflector 702, can prevent that baffle 8 from taking place the skew.
The cross section of the limiting groove 3 is trapezoidal and is matched with the sealing ring 5, the material of the sealing ring 5 is neoprene, the working temperature of the neoprene is between-54 ℃ and 150 ℃, and the sealing ring has the performances of good inorganic acid and alkali resistance, heat resistance, ageing resistance and the like, so that the sealing ring 5 is prevented from being corroded by the carbonic acid solution, the influence of high and low temperature changes on the sealing ring 5, the cross section of the sealing ring 5 is waist drum-shaped, an annular hole 501 is formed in the sealing ring 5, carbonic acid solution is filled in the annular hole 501, cola or snowy is used for the carbonic acid solution, carbon dioxide gas can be generated when the carbonic acid solution is subjected to vibration, the carbonic acid solution is filled in the annular hole 501 in the sealing ring 5, the carbonic acid solution can be accelerated to be separated out under the condition that the flange vibrates at high temperature or water is filled, the sealing ring 5 with the waist drum-shaped cross section is expanded by the carbon dioxide, the sealing ring 5 is extruded by the sealing ring 5, the sealing ring 5 is contracted, the sealing ring 5 can be contracted under the condition that the low temperature or water is not filled, and the sealing ring 5 can be expanded under the condition that the temperature changes or water is not filled, and the sealing ring can be prevented from being deformed for a long time; the upper surface of the baffle plate 8 is fixedly connected with a buckling block 10 at a position far away from the limiting plate 701, and the baffle plate 8 can be conveniently pulled out by arranging the buckling block 10; the inner wall threaded connection of countersunk head bolt hole 202 has countersunk head bolt 6, and countersunk head bolt 6's surface and the inner wall threaded connection of straight screw hole 102, countersunk head bolt 6's upper surface and the upper surface parallel and level of second ring flange 2, through setting up countersunk head bolt 6, can make first ring flange 1 and second ring flange 2 form detachable connection.
The working principle of the invention is as follows: when the lap joint flange is used, a user firstly welds a first flange plate 1 and a second flange plate 2 with pipelines to be butted with the outside respectively, then puts a sealing ring 5 into a limit groove 3, inserts a guide block 9 into a guide groove 4, at the moment, the first disc body 101 is completely aligned with a second disc body 201, a straight threaded hole 102 is aligned with a countersunk bolt hole 202, then screws a countersunk bolt 6 into the countersunk bolt hole 202 and is in threaded connection with the inner wall of the straight threaded hole 102, so that the first flange plate 1 and the second flange plate 2 are firmly connected, and finally inserts a baffle plate 8 along a guide plate 702 to prevent the countersunk bolt 6 from loosening; through filling carbonic acid solution in the annular hole 501 in sealing washer 5, can accelerate the carbon dioxide in the carbonic acid solution and separate out under the condition that high temperature or water make the flange vibrate, carbon dioxide makes the sealing washer 5 of waist drum cross-section expand, then sealing washer 5 extrudees the spacing groove 3 of trapezoidal cross-section, the leakproofness has been improved, and sealing washer 5's material is chloroprene rubber, prevent the influence of carbonic acid solution corruption sealing washer 5 and high low temperature change to sealing washer 5, when the carbon dioxide can slowly dissolve in liquid under low temperature or the condition of not letting in water, sealing washer 5 shrink, then the motion of expansion and shrink can be carried out to sealing washer 5 under the change of four seasons temperature and the condition of letting in water or not letting in water, thereby prevent because of the deformation that long-time extrusion sealing washer 5 produced, make this overlap joint flange can effectually prevent the seepage, reduce the leakage amount of pipeline, the water economy resource.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (1)
1. Overlap joint flange, including first ring flange (1) and second ring flange (2), its characterized in that: the upper surface of the first flange plate (1) is provided with a limit groove (3) and a guide groove (4), the inner wall of the limit groove (3) is provided with a sealing ring (5), the lower surface of the second flange plate (2) is fixedly connected with a guide block (9), the guide block (9) is matched with the guide groove (4), the upper surface of the second flange plate (2) is fixedly connected with an inserting piece (7), and the inner wall of the inserting piece (7) is slidably connected with a baffle plate (8);
The first flange plate (1) comprises a first plate body (101), straight threaded holes (102) are formed in the upper surface of the first plate body (101), the number of the straight threaded holes (102) is four, the four straight threaded holes (102) are circumferentially equidistantly arranged on the upper surface of the first plate body (101) in a circumferential array, and a first through hole (103) is formed in the central position of the upper surface of the first plate body (101);
The second flange plate (2) comprises a second plate body (201), a countersunk bolt hole (202) is formed in the upper surface of the second plate body (201), the countersunk bolt hole (202) corresponds to the position of the plug connector (7), the inner diameter of the countersunk bolt hole (202) is smaller than the width of the plug connector (7), and a second through hole (203) is formed in the upper surface of the second plate body (201);
The plug connector (7) comprises a limiting plate (701) fixedly connected with the upper surface of the second flange plate (2), one side, far away from the second through hole (203), of the limiting plate (701) is fixedly connected with a guide plate (702), grooves (703) are formed in the surfaces of the limiting plate (701) and the guide plate (702), and the grooves (703) are matched with the baffle plate (8);
The cross section of the limiting groove (3) is trapezoidal and is matched with the sealing ring (5), the sealing ring (5) is made of neoprene, the cross section of the sealing ring (5) is waist drum-shaped, an annular hole (501) is formed in the sealing ring (5), carbonic acid solution is filled in the annular hole (501), and carbon dioxide gas can be generated when the carbonic acid solution is vibrated;
The upper surface of the baffle plate (8) is fixedly connected with a buckling block (10) at a position far away from the limiting plate (701);
The inner wall of the countersunk head bolt hole (202) is in threaded connection with a countersunk head bolt (6), the surface of the countersunk head bolt (6) is in threaded connection with the inner wall of the straight threaded hole (102), and the upper surface of the countersunk head bolt (6) is flush with the upper surface of the second flange plate (2);
Through filling carbonic acid solution in annular hole (501) inside sealing washer (5), can accelerate the carbon dioxide in the carbonic acid solution under the condition that high temperature or water make flange vibration and separate out, carbon dioxide makes sealing washer (5) expansion of waist drum cross-section, then sealing washer (5) extrusion trapezoidal cross-section spacing groove (3), the leakproofness has been improved, and the material of sealing washer (5) is chloroprene rubber, prevent the influence of carbonic acid solution corruption sealing washer (5) and high low temperature change to sealing washer (5), when the carbon dioxide can slowly dissolve in liquid under low temperature or the condition of not leading to water, sealing washer (5) shrink, then under the change of four seasons temperature and the condition of leading to water or not leading to water sealing washer (5) can expand and shrink the motion, thereby prevent because of the deformation that long-time extrusion sealing washer (5) produced, make this overlap joint flange can effectually prevent the seepage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110555585.3A CN113404950B (en) | 2021-05-21 | 2021-05-21 | Overlap joint flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110555585.3A CN113404950B (en) | 2021-05-21 | 2021-05-21 | Overlap joint flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113404950A CN113404950A (en) | 2021-09-17 |
| CN113404950B true CN113404950B (en) | 2024-05-03 |
Family
ID=77679116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110555585.3A Active CN113404950B (en) | 2021-05-21 | 2021-05-21 | Overlap joint flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113404950B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083571A (en) * | 1992-01-17 | 1994-03-09 | 雷伊公司 | Environmental sealing |
| JPH1047489A (en) * | 1996-07-30 | 1998-02-20 | Nippon Leakless Corp | Soft seal ring |
| CN201407358Y (en) * | 2009-05-05 | 2010-02-17 | 马志刚 | Internal-pressing seal ring |
| CN204345127U (en) * | 2014-12-22 | 2015-05-20 | 何俊 | A kind of compound flange apparatus |
| CN206309746U (en) * | 2016-12-01 | 2017-07-07 | 绍兴市瑞雪环保科技有限公司 | A kind of screw with anti-loosening function |
| CN206957434U (en) * | 2017-05-02 | 2018-02-02 | 余铁辉 | A kind of hinge |
| CN209839418U (en) * | 2019-04-25 | 2019-12-24 | 特业法兰管件有限公司 | Flange for high-temperature steam pipeline |
| CN211574314U (en) * | 2019-12-31 | 2020-09-25 | 上海亚奥阀门有限公司 | Three-piece forged steel fixed ball valve |
| CN213039639U (en) * | 2020-09-17 | 2021-04-23 | 天津固耐丝标准件有限公司 | Novel locking screw structure that takes off |
-
2021
- 2021-05-21 CN CN202110555585.3A patent/CN113404950B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083571A (en) * | 1992-01-17 | 1994-03-09 | 雷伊公司 | Environmental sealing |
| JPH1047489A (en) * | 1996-07-30 | 1998-02-20 | Nippon Leakless Corp | Soft seal ring |
| CN201407358Y (en) * | 2009-05-05 | 2010-02-17 | 马志刚 | Internal-pressing seal ring |
| CN204345127U (en) * | 2014-12-22 | 2015-05-20 | 何俊 | A kind of compound flange apparatus |
| CN206309746U (en) * | 2016-12-01 | 2017-07-07 | 绍兴市瑞雪环保科技有限公司 | A kind of screw with anti-loosening function |
| CN206957434U (en) * | 2017-05-02 | 2018-02-02 | 余铁辉 | A kind of hinge |
| CN209839418U (en) * | 2019-04-25 | 2019-12-24 | 特业法兰管件有限公司 | Flange for high-temperature steam pipeline |
| CN211574314U (en) * | 2019-12-31 | 2020-09-25 | 上海亚奥阀门有限公司 | Three-piece forged steel fixed ball valve |
| CN213039639U (en) * | 2020-09-17 | 2021-04-23 | 天津固耐丝标准件有限公司 | Novel locking screw structure that takes off |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113404950A (en) | 2021-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205926504U (en) | pipe cleaner | |
| CN212056211U (en) | Oxygen pipeline ready-package high-sealing connection structure | |
| CN113404950B (en) | Overlap joint flange | |
| CN209054188U (en) | A kind of pipe gallery thread threading sealing structure | |
| CN206515152U (en) | A kind of pressure-resistant seal structure for pressure test | |
| CN208619882U (en) | Wall bushing plugging device | |
| CN205048031U (en) | Anticorrosive steel pipe is used in water delivery with bell and spigot connects | |
| CN203442341U (en) | Seal ring for through-wall galvanized pipe | |
| CN214940395U (en) | Plastic corrugated pipe and concrete inspection well sealing device | |
| CN204533956U (en) | A kind of pipeline leakage plugging device | |
| CN214248721U (en) | Connecting device of underground pipeline repairing air bag | |
| CN209977488U (en) | Socket type steel pipe self-anchoring single-sealing connecting structure | |
| CN210510695U (en) | AGR pipe of fixed rubber ring | |
| CN210661796U (en) | Stainless steel flange convenient to installation | |
| CN206786185U (en) | Fastening structure in a kind of ring flange | |
| CN203628052U (en) | Large-diameter pipeline wall penetrating sealing flexible connection structure | |
| CN209213236U (en) | A kind of detachable bellmouth connection structure of heavy-caliber nodular cast iron pipe | |
| CN205956586U (en) | Portable car pipe joints | |
| CN112879704A (en) | Take fast pipe fitting that connects of moulding plastics of anticreep gasket structure | |
| CN205349695U (en) | Oil pipe of oil pump vibration offsets | |
| CN207018719U (en) | A kind of plastic union pipe head seal | |
| CN206055016U (en) | A kind of sealing of the clamping sleeve blow-out patch with clamping device oil pipe | |
| CN220152114U (en) | Flange sealing assembly | |
| CN206093336U (en) | Hydraulic turbine antivibration voltage -sharing pipe | |
| CN205423107U (en) | Gas column resonance disease -prevention institutions of compressor pipeline |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240407 Address after: Xue Yan Zhen Xue Dong Cun, Wujin District, Changzhou City, Jiangsu Province, 213100 Applicant after: CHANGZHOU WUJIN XUEYAN PETROLEUM CHEMICAL SPARE PARTS Co.,Ltd. Country or region after: China Address before: 243000 301, building 6, central garden community, No. 8, Huayu Road, Huashan District, Ma'anshan City, Anhui Province Applicant before: Wang Suocheng Country or region before: China |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |