CN112879696B - Pipeline for hydraulic engineering convenient to concatenation - Google Patents
Pipeline for hydraulic engineering convenient to concatenation Download PDFInfo
- Publication number
- CN112879696B CN112879696B CN202110262022.5A CN202110262022A CN112879696B CN 112879696 B CN112879696 B CN 112879696B CN 202110262022 A CN202110262022 A CN 202110262022A CN 112879696 B CN112879696 B CN 112879696B
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- 230000000452 restraining effect Effects 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 34
- 238000003973 irrigation Methods 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002352 surface water Substances 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 description 1
Images
Classifications
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
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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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
- Sewage (AREA)
Abstract
The invention discloses a conveying pipeline convenient to splice for hydraulic engineering, relates to the field of hydraulic engineering, and aims to solve the problems that the existing conveying pipeline for hydraulic engineering is complex in splicing operation and inconvenient to disassemble and assemble. Compared with the traditional conveying pipeline splicing mode, the splicing method is quicker and more efficient, the splicing stability of the conveying pipeline is improved, and meanwhile, the hydraulic engineering construction efficiency is also improved.
Description
Technical Field
The invention relates to the field of hydraulic engineering, in particular to a conveying pipeline convenient to splice for hydraulic engineering.
Background
Hydraulic engineering is an engineering built for controlling and allocating surface water and underground water in nature to achieve the purposes of removing harmful substances and benefiting. Also known as water engineering. Water is a valuable resource essential for human production and life, but the naturally-occurring state of water does not completely meet the needs of human beings. Only when hydraulic engineering is built, water flow can be controlled, flood disasters are prevented, and water quantity is adjusted and distributed to meet the requirements of people on water resources in life and production. Hydraulic engineering needs to build various types of hydraulic structures such as dams, dikes, spillways, water gates, water inlets, channels, transition tanks, rafts, fishways and the like to achieve the aims.
The object can be divided into: flood control engineering for preventing flood disasters; the irrigation and water conservancy project, also called irrigation and drainage project, which can prevent drought, waterlogging and waterlogging from serving the agricultural production; channel and port projects that improve and create shipping conditions; urban water supply and drainage engineering for serving industrial and domestic water, and treating and removing sewage and rainwater; preventing water and soil loss and water pollution, and maintaining ecological balance; the fishery water conservancy project of fishery production is protected and enhanced; sea reclamation engineering and the like meeting the needs of industrial and agricultural production or transportation. One hydraulic engineering serves multiple targets such as flood control, irrigation, power generation, shipping and the like at the same time, and is called comprehensive utilization hydraulic engineering. The water storage engineering refers to a reservoir and a small reservoir (excluding an adjusting reservoir specially constructed for water diversion and water lifting engineering), and statistics is respectively carried out according to the large reservoir, the medium reservoir, the small reservoir and the small reservoir. The diversion project refers to the project of automatically diversion from surface water bodies such as river channels, lakes and the like (excluding the project of diversion from water storage and water lifting projects), and statistics is respectively carried out according to large, medium and small scales. The water lifting project refers to a project for lifting water from surface water bodies such as rivers, lakes and the like by using a water lifting pump station (excluding a project for lifting water from water storage projects and water diversion projects), and statistics is respectively carried out according to large, medium and small scales. The water transfer engineering refers to cross-basin water transfer engineering between water resource first-level areas or independent basins, and the storage, guide and lifting engineering does not include supporting engineering of the water transfer engineering. The underground water source engineering refers to a water well engineering utilizing underground water, and statistics is respectively carried out according to shallow underground water and deep confined water.
In water conservancy construction, many pipelines often need to be laid, and because the free length of pipeline has some restrictions, so in order to lay out long distance pipeline, just need splice the pipeline, traditional hydraulic engineering pipeline concatenation operation is comparatively loaded down with trivial details, and generally all fix through flange joint's mode, long-time exposure leads to the screw corrosion easily in external environment, thereby inconvenient dismouting, simultaneously also can appear the condition of leaking because the screw is not hard up and take place, lead to hydraulic engineering construction speed slower, therefore, in order to solve this type of problem, we have proposed a pipeline for the hydraulic engineering convenient to splice.
Disclosure of Invention
The conveniently-spliced conveying pipeline for the hydraulic engineering provided by the invention solves the problems that the existing conveying pipeline for the hydraulic engineering is complicated in splicing operation and inconvenient to assemble and disassemble.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a pipeline for hydraulic engineering convenient to concatenation, includes conveyer pipe and connection pad, the connection pad is installed to the tip of conveyer pipe, just the pipe wall fixedly connected with that the conveyer pipe is close to the connection pad is the mounting panel of symmetric distribution, two rotate between the mounting panel and install the connecting rod, just fixed cover is equipped with the rotor plate on the body of rod of connecting rod, slidable mounting has the locating plate on the rotor plate, just rotate on the rotor plate and install the containment frame, the containment frame is the setting of U type, fixedly connected with horizontal pole between the both sides inner wall of containment frame, just be connected with the pull rod between horizontal pole and the locating plate.
Preferably, the rotating plate is provided with a sliding groove, a sliding block is arranged in the sliding groove in a sliding manner, and the sliding block is fixedly connected with the positioning plate.
Preferably, the fixing rod is fixedly mounted inside the rotating plate, the fixing rod is fixedly sleeved with a positioning fluted disc which is symmetrically distributed, the two side edges of the restraining frame are rotatably sleeved on the rod body of the fixing rod, the inner walls of the two side edges of the restraining frame are provided with the object placing grooves, and the positioning fluted disc is located inside the object placing grooves.
As preferred, slidable mounting has the fly leaf between the both sides limit of tractive frame, just fixedly connected with third reset spring between the arc section inner wall of fly leaf and tractive frame, it has the locating piece to put thing inslot slidable mounting, and is equipped with the tooth piece with the locating fluted disc block on the locating piece, just the locating piece is connected with second reset spring with putting between the inner wall in thing groove, the top of locating piece is connected with the haulage rope, just the haulage rope is laid along tractive frame side length direction, and extends to the outside and the fly leaf fixed connection of tractive frame side.
Preferably, the inner wall of the arc section of the containment frame is fixedly connected with a limiting rod, the third return spring is sleeved on the rod body of the limiting rod, and the limiting rod and the movable plate are arranged in a sliding penetrating manner.
Preferably, wiring grooves are formed in the two side edges of the traction frame, guide wheels are rotatably mounted on one sides, close to the movable plate, of the wiring grooves, and the traction ropes are wound around the guide wheels.
As preferred, fixed cover is equipped with the ratchet on the connecting rod, and two fixedly connected with diaphragm between the mounting panel, one side fixedly connected with that the diaphragm is close to the ratchet is the guide bar that the slope set up, just the slip cover is equipped with the restriction piece on the body of rod of guide bar, the guide way that matches with the guide bar is seted up to the inside of restriction piece, the first reset spring of inside fixedly connected with of guide way, just first reset spring extends to the inside one end fixed connection of guide way with the guide bar.
Preferably, one end of the guide rod, which is located inside the guide groove, is fixedly connected with the anti-drop block.
Preferably, one end of the limiting block close to the ratchet wheel is obliquely arranged and is in sliding fit with the tooth block on the ratchet wheel.
The invention has the beneficial effects that:
1. the connecting disc used for butt joint is arranged at the end part of the conveying pipe, so that the traditional flange connection mode is changed, screw corrosion on the flange plate can be effectively avoided, and the connection stability of the conveying pipeline is ensured.
2. Through rotating the rotor plate to with conveyer pipe to parallel position, rethread pulling fly leaf makes it drive the locating piece and break away from with the location fluted disc through the haulage rope, then can make the traction frame rotate round location fluted disc and dead lever to drive the pull rod, slider and locating plate remove, until locating plate and connection pad contact and extrude to two connection pads paste tightly, this connected mode is compared in traditional pipeline connected mode convenient more fast, has improved the efficiency of hydraulic engineering construction.
To sum up, the device compares in traditional pipeline concatenation mode swift high-efficient more, has not only improved the stability of pipeline concatenation, has also improved hydraulic engineering construction's efficiency simultaneously, suitable using widely.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the splice structure of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view of A in FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of B in FIG. 2 according to the present invention;
FIG. 5 is an enlarged view of C of FIG. 2 according to the present invention;
FIG. 6 is a cross-sectional view showing the internal structure of the check frame according to the present invention.
Reference numbers in the figures: the device comprises a conveying pipe 1, a connecting disc 2, a rotating plate 3, a positioning plate 4, a pull rod 5, a traction frame 6, a mounting plate 7, a transverse plate 8, a guide rod 9, a limiting block 10, a ratchet wheel 11, a connecting rod 12, a first return spring 13, a positioning fluted disc 14, a positioning block 15, a second return spring 16, a traction rope 17, a fixed rod 18, a limiting rod 19, a third return spring 20, a movable plate 21, a guide wheel 22, a cross rod 23, a sliding chute 24 and a sliding block 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The first embodiment is as follows:
referring to fig. 1, fig. 2 and fig. 4-6, a pipeline for hydraulic engineering convenient to concatenation, including conveyer pipe 1 and connection pad 2, connection pad 2 is installed to the tip of conveyer pipe 1, and conveyer pipe 1 is close to the pipe wall fixedly connected with of connection pad 2 and is the mounting panel 7 of symmetric distribution, rotate between two mounting panels 7 and install connecting rod 12, and fixed cover is equipped with rotor plate 3 on the body of rod of connecting rod 12, slidable mounting has locating plate 4 on rotor plate 3, and rotatable mounting has on rotor plate 3 and hold down 6, hold down 6 is the setting of U type, fixedly connected with horizontal pole 23 between the both sides inner wall of hold down 6, and be connected with pull rod 5 between horizontal pole 23 and the locating plate 4, spout 24 has been seted up on the rotor plate 3, and slidable mounting has slider 25 in the spout 24, and slider 25 and locating plate 4 fixed connection.
The inside fixed mounting of rotor plate 3 has dead lever 18, and fixed cover is equipped with the location fluted disc 14 that is symmetric distribution on the dead lever 18, and two side rotation covers of pinning frame 6 are established on the body of rod of dead lever 18, and the inner wall of two sides of pinning frame 6 has all been seted up and has been put the thing groove, and location fluted disc 14 is located and puts the thing inslot.
A movable plate 21 is slidably mounted between two side edges of the traction frame 6, a third return spring 20 is fixedly connected between the movable plate 21 and an inner wall of an arc section of the traction frame 6, a positioning block 15 is slidably mounted in the storage groove, a tooth block clamped with the positioning fluted disc 14 is arranged on the positioning block 15, a second return spring 16 is connected between the positioning block 15 and the inner wall of the storage groove, the top end of the positioning block 15 is connected with a traction rope 17, the traction rope 17 is arranged along the length direction of the side edge of the traction frame 6 and extends to the outside of the side edge of the traction frame 6 to be fixedly connected with the movable plate 21, a limiting rod 19 is fixedly connected to the inner wall of the arc section of the traction frame 6, the third return spring 20 is sleeved on a rod body of the limiting rod 19, the limiting rod 19 and the movable plate 21 are slidably arranged, wiring grooves are formed in the two side edges of the traction frame 6, a guide wheel 22 is rotatably mounted on one side of the wiring groove close to the movable plate 21, and the traction rope 17 bypasses the guide wheel 22.
When the conveying pipes 1 are spliced, firstly, two conveying pipes 1 to be spliced are butted, so that the connecting discs 2 are close to each other, then the rotating plate 3 is rotated to be placed in a position parallel to the conveying pipes 1, the positioning plate 4 of the rotating plate is in contact with the pipe wall of another conveying pipe 1, then the restraining frame 6 is held, the movable plate 21 is pulled, the movable plate 21 pulls the traction rope 17, the traction rope 17 pulls the positioning block 15, so that the positioning block 15 is separated from the positioning fluted disc 14, meanwhile, the positioning block 15 extrudes the second return spring 16, at the moment, the restraining frame 6 can be rotated on the fixed rod 18, the restraining frame 6 drives the cross rod 23, the cross rod 23 pulls the pull rod 5, the pull rod 5 pulls the slider 25 and the positioning plate 4, so that the slider 25 slides in the sliding groove 24, when the positioning plate 4 is in contact with the connecting discs 2 and the connecting discs 2 are tightly abutted, the movable plate 21 is released, at the moment, the third return spring 20 reversely pushes the movable plate 21, so that the movable plate 21 loses the restraint on the traction rope 17, and the second return spring 16 pushes the positioning block 15, the positioning block 15 is in contact with the fixed fluted disc 14, and the positioning plate 1 can be stably connected with the positioning plate 1.
Example two
Referring to fig. 1-3, a ratchet 11 is fixedly sleeved on a connecting rod 12, a transverse plate 8 is fixedly connected between two mounting plates 7, a guide rod 9 which is obliquely arranged is fixedly connected to one side of the transverse plate 8 close to the ratchet 11, a limiting block 10 is slidably sleeved on a rod body of the guide rod 9, a guide groove matched with the guide rod 9 is formed in the limiting block 10, a first reset spring 13 is fixedly connected to the inside of the guide groove, the first reset spring 13 and the guide rod 9 are fixedly connected to one end inside the guide groove in an extending mode, the guide rod 9 is fixedly connected to one end inside the guide groove in an anti-falling mode, one end, close to the ratchet 11, of the limiting block 10 is obliquely arranged and is in sliding fit with a toothed block on the ratchet 11.
Compared with the first embodiment, the first embodiment adds a fixing structure for fixing the rotating plate 3 after rotating, so as to prevent the conveying pipe 1 from being separated due to the reverse rotation of the rotating plate 3, and ensure the connection stability of the conveying pipe 1, when the rotating plate 3 rotates, the connecting rod 12 and the ratchet 11 can be driven to rotate, because the first return spring 13 is arranged and the end of the limiting block 10 is inclined, when the ratchet 11 rotates, the limiting block 10 can be pushed, the limiting block 10 slides on the guide rod 9, and meanwhile, the first return spring 13 is extruded, when the rotating plate 3 rotates to be horizontal, the first return spring 13 pushes the limiting block 10, so that the limiting block 10 is abutted between the tooth blocks of the ratchet 11, and the ratchet 11 is limited, thereby ensuring that the rotating plate 3 keeps horizontal stability, and preventing the conveying pipe 1 from being separated due to the reverse rotation of the rotating plate 3.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. The utility model provides a pipeline for hydraulic engineering convenient to concatenation, includes conveyer pipe (1) and connection pad (2), its characterized in that, connection pad (2) are installed to the tip of conveyer pipe (1), just pipe wall fixedly connected with that conveyer pipe (1) is close to connection pad (2) is mounting panel (7) of symmetric distribution, two rotate between mounting panel (7) and install connecting rod (12), and fixed cover is equipped with rotor plate (3) on the body of rod of connecting rod (12), slidable mounting has locating plate (4) on rotor plate (3), and rotatable mounting has on rotor plate (3) and draw back (6), and draw back (6) are the U type setting, fixedly connected with horizontal pole (23) between the both sides inner wall of draw back (6), and be connected with pull rod (5) between horizontal pole (23) and locating plate (4);
the rotating plate (3) is provided with a sliding chute (24), a sliding block (25) is arranged in the sliding chute (24) in a sliding mode, and the sliding block (25) is fixedly connected with the positioning plate (4);
a fixed rod (18) is fixedly installed inside the rotating plate (3), positioning fluted discs (14) which are symmetrically distributed are fixedly sleeved on the fixed rod (18), two side edges of the restraining frame (6) are rotatably sleeved on a rod body of the fixed rod (18), article placing grooves are formed in the inner walls of the two side edges of the restraining frame (6), and the positioning fluted discs (14) are located inside the article placing grooves;
a movable plate (21) is slidably mounted between two side edges of the traction frame (6), a third reset spring (20) is fixedly connected between the movable plate (21) and the inner wall of the arc section of the traction frame (6), a positioning block (15) is slidably mounted in the storage groove, a tooth block clamped with the positioning fluted disc (14) is arranged on the positioning block (15), a second reset spring (16) is connected between the positioning block (15) and the inner wall of the storage groove, the top end of the positioning block (15) is connected with a traction rope (17), the traction rope (17) is arranged along the length direction of the side edge of the traction frame (6), and the traction rope extends to the outer part of the side edge of the traction frame (6) and is fixedly connected with the movable plate (21);
the inner wall of the arc section of the traction frame (6) is fixedly connected with a limiting rod (19), the third reset spring (20) is sleeved on a rod body of the limiting rod (19), and the limiting rod (19) and the movable plate (21) are arranged in a sliding penetrating manner;
wiring grooves are formed in the inner portions of two side edges of the restraining frame (6), a guide wheel (22) is rotatably mounted on one side, close to the movable plate (21), of each wiring groove, and the traction rope (17) bypasses the guide wheels (22);
a ratchet wheel (11) is fixedly sleeved on the connecting rod (12), a transverse plate (8) is fixedly connected between the two mounting plates (7), one side, close to the ratchet wheel (11), of the transverse plate (8) is fixedly connected with a guide rod (9) which is obliquely arranged, a limiting block (10) is sleeved on a rod body of the guide rod (9) in a sliding mode, a guide groove matched with the guide rod (9) is formed in the limiting block (10), a first reset spring (13) is fixedly connected inside the guide groove, and the first reset spring (13) is fixedly connected with one end, extending to the inside of the guide groove, of the guide rod (9);
one end of the guide rod (9) positioned in the guide groove is fixedly connected with an anti-falling block;
one end of the limiting block (10) close to the ratchet wheel (11) is obliquely arranged and is in sliding fit with the tooth block on the ratchet wheel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110262022.5A CN112879696B (en) | 2021-03-10 | 2021-03-10 | Pipeline for hydraulic engineering convenient to concatenation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110262022.5A CN112879696B (en) | 2021-03-10 | 2021-03-10 | Pipeline for hydraulic engineering convenient to concatenation |
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| Publication Number | Publication Date |
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| CN112879696A CN112879696A (en) | 2021-06-01 |
| CN112879696B true CN112879696B (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110262022.5A Active CN112879696B (en) | 2021-03-10 | 2021-03-10 | Pipeline for hydraulic engineering convenient to concatenation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116906706B (en) * | 2023-07-21 | 2025-10-31 | 北京探矿工程研究所 | Quick connector and quick connecting device for deep sea drilling fluid solid conveying bridging hose |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4059296A (en) * | 1974-11-12 | 1977-11-22 | Hellenic Plastics And Rubber Industry | Quick-action coupling for pipes or tubes |
| CN210510663U (en) * | 2019-07-27 | 2020-05-12 | 河南长兴建设集团有限公司 | Heating and ventilation pipeline connecting device |
| CN212226315U (en) * | 2020-05-25 | 2020-12-25 | 曹先鹏 | Pipeline connecting piece for hydraulic engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2710715B1 (en) * | 1993-09-29 | 1996-09-20 | Marc Jean Pierre | Self-locking lock for pipes. |
| KR101703193B1 (en) * | 2015-05-11 | 2017-02-06 | 장용기 | Camlock coupler for fluid transfer pipe |
| CN205101754U (en) * | 2015-10-14 | 2016-03-23 | 唐山三友化工股份有限公司 | Can take temperature sensor bushing apparatus who presses installation |
| CN210978885U (en) * | 2019-05-27 | 2020-07-10 | 唐秀秀 | Quick hot-water heating connection structure |
| CN210213662U (en) * | 2019-07-15 | 2020-03-31 | 江苏衡辉工程检测有限公司 | Anti-abrasion water supply pipeline installation and conveying device for water service |
| CN210904392U (en) * | 2019-09-27 | 2020-07-03 | 婧雯兴华(天津)医药科技发展有限公司 | Medical infusion chair |
| CN211779511U (en) * | 2020-01-15 | 2020-10-27 | 青岛武晓制管有限公司 | Flange convenient to assemble |
| CN211901953U (en) * | 2020-01-19 | 2020-11-10 | 李小青 | A water conservancy project pipeline docking structure |
| CN112431982A (en) * | 2020-12-15 | 2021-03-02 | 王兴恒 | Hydraulic engineering plastic conduit connecting device |
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2021
- 2021-03-10 CN CN202110262022.5A patent/CN112879696B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4059296A (en) * | 1974-11-12 | 1977-11-22 | Hellenic Plastics And Rubber Industry | Quick-action coupling for pipes or tubes |
| CN210510663U (en) * | 2019-07-27 | 2020-05-12 | 河南长兴建设集团有限公司 | Heating and ventilation pipeline connecting device |
| CN212226315U (en) * | 2020-05-25 | 2020-12-25 | 曹先鹏 | Pipeline connecting piece for hydraulic engineering |
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