Bidirectional stop valve with filtering and flow monitoring functions

Abstract

The utility model discloses a two-way stop valve with filtering and flow monitoring functions, which comprises a male insertion section and a female insertion section, one end of the male insertion section is provided with a butt joint part, the other end of the male insertion section is provided with an insertion part, the insertion part is provided with a first communication port, a movable valve core is arranged in the first communication port, and the male insertion section is provided with a flow sensor; a connecting plug is arranged at one end of the female inserting section, a butt joint is arranged at the other end of the female inserting section, and an ejector rod, a valve element and a filter element are arranged in the female inserting section. According to the two-way stop valve, impurities and particles in fluid can be effectively intercepted and prevented from entering a pipeline system, and the filter element can be conveniently cleaned, maintained and replaced. And the flow sensor is installed, so that an operator can accurately obtain fluid flow information in real time.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, specifically relating to a bidirectional shut-off valve with filtration and flow monitoring functions. Background Technology

[0002] In fluid transport systems, bidirectional shut-off valves, as crucial components for controlling fluid flow direction and cutting off fluid flow, are widely used in automotive and energy storage thermal management systems, petrochemicals, water supply and drainage, gas supply, and many other fields. Traditional bidirectional shut-off valves primarily achieve functions such as fluid on / off control and flow direction control, and bidirectional shut-off and leakage prevention at both male and female ends after disconnection. However, they have many limitations in practical applications.

[0003] The primary purpose of installing a two-way shut-off valve is to facilitate pipeline disconnection, enabling convenient maintenance of management and equipment components along the pipeline. After maintenance, it allows for rapid reconnection to restore flow. During pipeline and equipment maintenance, foreign matter can easily enter the pipeline. Most existing two-way shut-off valves lack filtration capabilities. Once impurities and particles in the fluid enter the pipeline system, they not only affect the quality of fluid transport but may also cause wear and blockage to downstream equipment such as pumps and instruments, reducing equipment lifespan and increasing maintenance costs. Furthermore, after the pipeline is restored to flow, the lack of flow monitoring functionality prevents operators from monitoring the pipeline's restoration status in real time, hindering precise control and management of the fluid transport process. This is detrimental to optimizing system efficiency and ensuring safe and stable system operation. In addition, the sealing performance and connection stability of existing two-way shut-off valves need improvement. Under prolonged use or exposure to vibration and pressure fluctuations, leaks can easily occur, affecting normal system operation and even causing safety accidents. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a bidirectional shut-off valve with filtration and flow monitoring, including a male connector and a female connector.

[0005] One end of the male connector is designated as a docking part, and the other end is designated as a plug-in part. The plug-in part is provided with a first connecting port that connects to the interior of the plug-in part. A movable valve core is provided inside the first connecting port. A first spring limiting platform is provided inside the male connector. An active chamber for the movable valve core to move is formed between the first spring limiting platform and the first connecting port. A first spring is provided inside the active chamber. The first spring is sandwiched between the first spring limiting platform and the movable valve core. A flow sensor is installed on the male connector.

[0006] One end of the female insert section is provided with a plug for the insertion part to be inserted, and the other end is provided with a connector. The female insert section is provided with a push rod and a valve core. One end of the push rod is fixedly connected to the female insert section, and the other end points to the plug and is fixedly connected with a second sealing plug. One end of the valve core is provided with a second communication port, and the other end is bent outward to form a movable limiting ring. The female insert section is provided with a fixed limiting ring and a second spring limiting platform. The movable limiting ring is located between the fixed limiting ring and the second spring limiting platform. A second spring is provided between the valve core and the second spring limiting platform. The second sealing plug is located in the second communication port and is sealed to the valve core. The diameter of the second sealing plug is smaller than the minimum diameter of the first communication port. The female insert section is provided with a filter element.

[0007] As a preferred embodiment of the above technical solution, the male connector section includes a front section pipe and a rear section pipe. One end of the front section pipe is configured as a docking part, and the other end is inserted into one end of the rear section pipe to form a first spring limiting platform. The front section pipe and the rear section pipe are sealed together. The flow sensor is installed on the front section pipe. The docking part is provided with several annular grooves, and a first sealing ring is installed on the docking part.

[0008] As a preferred embodiment of the above technical solution, the diameter of the first communication port gradually decreases from the inside to the outside, the movable valve core is provided with a second sealing ring, and the movable valve core is provided with a first annular fixing groove for fixing the second sealing ring.

[0009] As a preferred embodiment of the above technical solution, the active chamber is provided with a guide slip ring, which is fixedly connected to the active valve core by a number of spaced connecting pieces.

[0010] As a preferred embodiment of the above technical solution, the female insertion section includes a front tube, a rear tube, and an inner tube. One end of the front tube is configured as a plug connector, and the other end is fixedly connected to the inner tube. The other end of the inner tube extends into the interior of one end of the rear tube and is threadedly connected to the rear tube. One end of the rear tube has an external thread and is configured as a butt connector. A limiting ring is fixedly provided inside the rear tube. The filter element includes an installation tube, and filter screens are respectively provided at both ends of the installation tube. One end of the top rod is fixedly connected to the inner tube through several fixed connecting plates. One end of the inner tube extends into the front tube and forms a second spring limiting platform.

[0011] As a preferred embodiment of the above technical solution, a locking element is installed on the connector, and a locking ring is provided on the connector portion. The locking element includes an elastic ring, and pressing portions are fixedly connected to both sides of the elastic ring. A locking block is provided between the pressing portions, and the locking block is fixedly connected to the elastic ring. The elastic ring and the locking block are both located inside the connector. The connector has a receiving groove for the locking block to move inside. The connector has movable openings on both sides, and the pressing portions are located in the movable openings. A guide slope is provided on the inner side of the locking block.

[0012] As a preferred embodiment of the above technical solution, the mounting tube includes a large outer diameter section and a small outer diameter section. The large outer diameter section is sandwiched between the inner tube and the limiting ring. The mounting tube and the inner tube are connected in a sealed manner by a third sealing ring. The small outer diameter section is provided with a sealing ring mounting groove for fixing the third sealing ring.

[0013] As a preferred embodiment of the above technical solution, the plug is provided with a fourth sealing ring inside, and a sealed connection is formed between the plug and the plug part through the fourth sealing ring. The plug is provided with a sealing ring limiting ring inside for limiting the fourth sealing ring, and the sealing ring limiting ring is fastened to the plug.

[0014] As a preferred embodiment of the above technical solution, the diameter of the second connecting port gradually decreases from the outside to the inside.

[0015] As a preferred embodiment of the above technical solution, the movable valve core is provided with a tapered guide section at one end near the first spring.

[0016] The beneficial effects of this utility model are:

[0017] The bidirectional shut-off valve with filtration and flow monitoring described in this utility model has significant technical advantages:

[0018] 1. In terms of filtration function, the filter element installed in the mother section can effectively intercept impurities and particles in the fluid, preventing them from entering the pipeline system, ensuring the quality of fluid transportation, reducing wear and blockage of subsequent equipment, extending equipment service life, and significantly reducing maintenance costs.

[0019] 2. The filter element can be easily cleaned, maintained, and replaced to ensure filtration effectiveness.

[0020] 3. The installation of flow sensors enables operators to obtain fluid flow information in real time and accurately, providing data support for precise control and management of the fluid delivery process, helping to optimize system operating efficiency and ensure safe and stable system operation.

[0021] 4. Multiple sealing designs for the male and female valve sections, such as the first sealing ring and the second sealing ring, combined with locking elements and locking ring structures, greatly improve the sealing performance and stability of the valve connection, effectively preventing leakage even during long-term use or under complex working conditions such as vibration and pressure fluctuations. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the cross-sectional structure of the male and female connectors before they are joined together;

[0023] Figure 2 This is a schematic diagram of the internal structure after the male and female connectors are joined together;

[0024] Figure 3This is a schematic diagram of the cross-sectional structure after the male and female connectors are joined together. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] like Figure 1-3 As shown, the bidirectional shut-off valve with filtration and flow monitoring includes a male connector and a female connector.

[0029] One end of the male connector is designated as a docking part 1, and the other end is designated as a plug-in part 2. The plug-in part 2 is provided with a first connecting port 3 that connects to the interior of the plug-in part 2. A movable valve core 4 is provided inside the first connecting port 3. A first spring limiting platform 5 is provided inside the male connector. An active chamber 6 for the movable valve core 4 to move is formed between the first spring limiting platform 5 and the first connecting port 3. A first spring 7 is provided inside the active chamber 6. The first spring 7 is sandwiched between the first spring limiting platform 5 and the movable valve core 4. A flow sensor 8 is installed on the male connector.

[0030] One end of the female connector section is provided with a connector 9 for insertion of the connector 2, and the other end is provided with a mating connector 10. The female connector section contains a push rod 11 and a valve core 12. One end of the push rod 11 is fixedly connected to the female connector section, and the other end points to the connector 9 and is fixedly connected to a second sealing plug 13. One end of the valve core 12 is provided with a second connecting port 14, and the other end is bent outwards to form a movable limiting ring 15. The female connector section contains a fixed limiting ring 16 and a second spring limiting platform 17. The movable limiting ring 15 is located between the fixed limiting ring 16 and the second spring limiting platform 17. A second spring 18 is provided between the valve core 12 and the second spring limiting platform 17. The second sealing plug 13 is located in the second connecting port 14 and is sealed to the valve core 12. The diameter of the second sealing plug 13 is smaller than the minimum diameter of the first connecting port 3. The female connector section contains a filter element. When installing the bidirectional shut-off valve of this utility model in a pipeline, first connect the male connector section to the pipeline through the mating part 1, and then connect the female connector section to another pipeline through the mating connector 10. The male connector 2 is inserted into the female connector 9. During insertion, the second sealing plug 13 presses against the movable valve core 4, causing it to move away from the first connecting port 3, overcoming the force of the first spring 7, thus opening the first connecting port 3. Simultaneously, the connector 2 pushes the valve core 12 towards the mating connector 10, overcoming the force of the second spring 18, opening the second connecting port 14. This establishes internal communication between the male and female connectors, creating a connected pipeline. When pipeline maintenance is required, the connector 2 is pulled out of the connector 9. The movable valve core 4, under the force of the first spring 7, blocks the first connecting port 3, while the valve core 12 moves under the force of the second spring 18, and the second sealing plug 13 blocks the second connecting port 14. This creates a circuit break between the male and female connectors, preventing liquid leakage from the pipeline.

[0031] Furthermore, the male connector section includes a front section pipe 19 and a rear section pipe 20. One end of the front section pipe 19 is configured as a docking part 1, and the other end is inserted into one end of the rear section pipe 20 to form a first spring limiting platform 5. The front section pipe 19 and the rear section pipe 20 are sealed together. The flow sensor 8 is installed on the front section pipe 19. The docking part 1 is provided with several annular grooves 21, and a first sealing ring 22 is installed on the docking part 1. The flow sensor 8 is existing technology and can be directly purchased from the market for installation.

[0032] Furthermore, the diameter of the first connecting port 3 gradually decreases from the inside to the outside. The movable valve core 4 is provided with a second sealing ring 23, and a first annular fixing groove 24 for fixing the second sealing ring 23 is provided on the movable valve core 4. Under the restoring force of the first spring 7, the movable valve core 4 moves to the first connecting port 3 and plugs the first connecting port 3. The gradually decreasing diameter of the first connecting port 3 also serves to limit the movement of the movable valve core 4.

[0033] Furthermore, the movable chamber 6 is equipped with a guide slip ring 25, which is fixedly connected to the movable valve core 4 via several spaced connecting pieces 26. The guide slip ring 25 improves the stability of the movable valve core 4 during its movement. After the movable valve core 4 leaves the first communication port 3, liquid can pass through the gaps between the connecting pieces 26 and the gap between the movable valve core 4 and the inner wall of the movable chamber 6.

[0034] Furthermore, the female insertion section includes a front tube 27, a rear tube 28, and an inner tube 29. One end of the front tube 27 is a connector 9, and the other end is fixedly connected to the inner tube 29. The other end of the inner tube 29 extends into one end of the rear tube 28 and is threadedly connected to the rear tube 28. One end of the rear tube 28 has an external thread and is a butt joint 10. A limiting ring 30 is fixedly installed inside the rear tube 28. The filter element includes an installation tube 31, with filter screens 32 at both ends of the installation tube 31. One end of the top rod 11 is fixedly connected to the inner tube 29 through several fixed connecting plates 33. One end of the inner tube 29 extends into the front tube 27 and forms a second spring limiting platform 17. The inner tube 29 is threadedly connected to the rear tube 28. After rotating the rear tube 28 relative to the filter element, it can be removed for cleaning, maintenance, or replacement.

[0035] Furthermore, a locking element is installed on the connector 9, and a locking ring 34 is provided on the connector 2. The locking element includes an elastic ring 35, and pressing parts 36 are fixedly connected to both sides of the elastic ring 35. A locking block 37 is provided between the pressing parts 36, and the locking block 37 is fixedly connected to the elastic ring 35. The elastic ring 35 and the locking block 37 are both located inside the connector 9. The connector 9 has a receiving groove 39 for the locking block 37 to move inside. The connector 9 has movable openings 38 on both sides, and the pressing parts 36 are located in the movable openings 38. The inner side of the locking block 37 has a guide slope 40. When the male and female connectors are connected, the connector 2 is inserted into the connector 9. The locking ring 34 acts on the guide slope 40 to open the elastic ring 35. Then the elastic ring 35 automatically returns to its original position, and the locking block 37 locks the locking ring 34 to prevent the connector 2 from disengaging from the connector 9. When the pipeline needs to be inspected, press the pressing part 36 firmly to deform the elastic ring 35 and move the locking block 37 into the receiving groove 39. This allows the plug part 2 to be pulled out smoothly, thus separating the male plug section and the female plug section.

[0036] Furthermore, the mounting tube 31 includes a large outer diameter section 41 and a small outer diameter section 42. The large outer diameter section 41 is sandwiched between the inner tube 29 and the limiting ring 30. The mounting tube 31 and the inner tube 29 are sealed together by a third sealing ring 43. The small outer diameter section 42 is provided with a sealing ring mounting groove 44 for fixing the third sealing ring 43. When installing the filter element, the small outer diameter section 42 is inserted into the inner tube 29, and then the rear tube 28 is threaded onto the inner tube 29, so that the large outer diameter section 41 is clamped between the inner tube 29 and the limiting ring 30, thus fixing the filter element.

[0037] Furthermore, the connector 9 is internally provided with a fourth sealing ring 45 and a fifth sealing ring 50. The connector 9 and the insertion part 2 are sealed together by the fourth sealing ring 45. The connector 9 is internally provided with a sealing ring limiting ring 46 for restricting the fourth sealing ring 45, and the sealing ring limiting ring 46 is engaged with the connector 9. After the second sealing plug 13 is inserted into the second connecting port 14, the valve core 12 is sealed together with the female insertion section by the fifth sealing ring 50. After the connector 9 is inserted into the insertion part 2, a sealed connection is formed between it and the female insertion section by the fourth sealing ring 45.

[0038] Furthermore, the diameter of the second connecting port 14 gradually decreases from the outside to the inside (along the direction from the plug 9 to the connector 10). In this way, after the valve core 12 moves, the second sealing plug 13 is inserted into the second connecting port 14 to form a sealed connection with the valve core 12.

[0039] Furthermore, a tapered guide portion 47 is provided on the movable valve core 4 near the first spring 7. The tapered guide portion 47 guides the liquid in the male insertion section, so that the movable valve core 4 is subjected to uniform force, and can block the first connecting port 3 when the bidirectional shut-off valve is disconnected.

[0040] It is worth mentioning that the technical features such as the flow sensor involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be adopted using conventional choices in the field, and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0041] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A bidirectional stop valve with filtration and flow monitoring, characterized in that, The male plug section and the female plug section are provided, One end of the male plug section is provided with a butt joint, and the other end is provided with a plug-in part, the plug-in part is provided with a first communication port communicating with the inside of the plug-in part, the first communication port is provided with a movable valve core, the male plug section is provided with a first spring limiting table, the first spring limiting table and the first communication port form a movable chamber for the movable valve core, the movable chamber is provided with a first spring, the first spring is clamped between the first spring limiting table and the movable valve core, and the male plug section is provided with a flow sensor. One end of the female plug section is provided with a plug-in head for inserting the plug-in part, the other end is provided with a butt joint, the female plug section is provided with a top rod and a valve core, one end of the top rod is fixedly connected with the female plug section, the other end points to the plug-in head and is fixedly connected with a second sealing plug, one end of the valve core is provided with a second communication port, the other end is bent outward to form a movable limiting ring, the female plug section is provided with a fixed limiting ring and a second spring limiting table, the movable limiting ring is located between the fixed limiting ring and the second spring limiting table, a second spring is arranged between the valve core and the second spring limiting table, the second sealing plug is located in the second communication port and is sealingly connected with the valve core, the diameter of the second sealing plug is smaller than the minimum diameter of the first communication port, and the female plug section is provided with a filter core.

2. The bidirectional stop valve with filtration and flow monitoring according to claim 1, characterized in that, The male plug section includes a front section pipe and a rear section pipe, one end of the front section pipe is provided as a butt joint, the other end is inserted into one end of the rear section pipe and forms a first spring limiting table, the front section pipe and the rear section pipe are sealingly connected, and the flow sensor is mounted on the front section pipe.

3. The bidirectional stop valve with filtration and flow monitoring according to claim 2, characterized in that, The diameter of the first communication port gradually decreases from inside to outside, the movable valve core is provided with a second sealing ring, and the movable valve core is provided with a first annular fixing groove for fixing the second sealing ring.

4. The bidirectional stop valve with filtration and flow monitoring according to claim 3, characterized in that, The movable chamber is provided with a guide sliding ring, and the guide sliding ring is fixedly connected with the movable valve core through a plurality of spaced connection plates.

5. The bidirectional stop valve with filtration and flow monitoring according to claim 1, characterized in that, The female plug section includes a front pipe, a rear pipe and an internal pipe, one end of the front pipe is provided as a plug-in head, the other end is fixedly connected with the internal pipe, the other end of the internal pipe extends into the inside of one end of the rear pipe and is threadedly connected with the rear pipe, one end of the rear pipe has external threads and is provided as a butt joint, and a limiting ring is fixedly arranged in the inside of the rear pipe, the filter core includes a mounting pipe, both ends of the mounting pipe are respectively provided with filter screens, one end of the top rod is fixedly connected with the internal pipe through a plurality of fixed connection plates, one end of the internal pipe extends into the front pipe and forms a second spring limiting table.

6. The bidirectional stop valve with filtration and flow monitoring according to claim 5, characterized in that, The plug-in head is provided with a locking member, the plug-in part is provided with a locking ring, the locking member includes an elastic ring, both sides of the elastic ring are respectively fixedly connected with pressing portions, a locking block is arranged between the pressing portions, the locking block is fixedly connected with the elastic ring, the elastic ring and the locking block are located in the inside of the plug-in head, the inside of the plug-in head is provided with a containing groove for the movable locking block, both sides of the plug-in head are respectively provided with movable ports, the pressing portions are respectively located in the movable ports, and the inside of the locking block is provided with a guide inclined surface.

7. The bidirectional stop valve with filtration and flow monitoring according to claim 5, characterized in that, The mounting pipe includes a large outer diameter section and a small outer diameter section, the large outer diameter section is clamped between the internal pipe and the limiting ring, the mounting pipe and the internal pipe are sealingly connected through a third sealing ring, and the small outer diameter section is provided with a sealing ring mounting groove for fixing the third sealing ring.

8. The bidirectional stop valve with filtration and flow monitoring according to claim 5, characterized in that, The plug-in connector is internally provided with a fourth sealing ring, and the plug-in connector and the plug-in part are sealingly connected through the fourth sealing ring.

9. The bidirectional stop valve with filtration and flow monitoring according to claim 5, characterized in that, The diameter of the second communication port gradually decreases from outside to inside.

10. The bidirectional stop valve with filtration and flow monitoring of claim 1, wherein, A conical flow guide part is arranged on the movable valve core close to one end of the first spring.

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