Bidirectional stop valve with filtering and flow monitoring functions

Abstract

The bidirectional stop valve 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, a first communication opening is formed in the insertion part, a movable valve element is arranged in the first communication opening, and a flow sensor is installed on the male insertion section; 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] The invention belongs to the technical field of valves, and in particular relates to a two-way stop valve with filtering and flow monitoring functions. Background Art

[0002] In the fluid delivery system, the two-way stop valve is an important component for controlling the flow direction of the fluid and cutting off the fluid. It is widely used in many fields such as automobiles and energy storage thermal management systems, petrochemicals, water supply and drainage, gas supply, etc. The traditional two-way stop valve mainly realizes the on-off and flow direction control of the fluid, and realizes two-way cut-off and leakage prevention at the male and female ends after disconnection. However, there are many limitations in actual use.

[0003] The main purpose of installing and setting a two-way stop valve is to facilitate the disconnection of the pipeline, to facilitate the management and maintenance of other equipment components on the pipeline, and to achieve rapid docking and restore the flow state after the maintenance is completed. During the maintenance of pipelines and equipment, it is easy for foreign debris to enter the pipeline. Most of the existing two-way stop valves lack filtering function. Once impurities and particles in the fluid enter the pipeline system, it will not only affect the delivery quality of the fluid, but also may cause wear and blockage to subsequent equipment such as pumps and instruments, reduce the service life of the equipment, and increase maintenance costs. On the other hand, after the pipeline resumes the flow state, due to the lack of flow monitoring function, the operator cannot grasp the pipeline recovery situation in real time, and it is difficult to accurately control and manage the fluid delivery process, which is not conducive to optimizing the system operation efficiency and ensuring the safe and stable operation of the system. In addition, the sealing performance and connection stability of the existing two-way stop valve in the connection structure need to be improved. In the case of long-term use or vibration, pressure fluctuations, etc., it is easy to leak, affecting the normal operation of the system and even causing safety accidents. Summary of the invention

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a two-way stop valve with filtering and flow monitoring, including a male plug section and a female plug section,

[0005] One end of the male plug section is set as a docking part, and the other end is set as a plug-in part. The plug-in part is provided with a first communication port connected to the inside of the plug-in part, and a movable valve core is provided in the first communication port. A first spring limit platform is provided in the male plug section, and an activity chamber for the movable valve core to move is formed between the first spring limit platform and the first communication port. A first spring is provided in the activity chamber, and the first spring is sandwiched between the first spring limit platform and the movable valve core. A flow sensor is installed on the male plug section;

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

[0007] The male insertion section includes a front section pipe and a rear section pipe. One end of the front section pipe is set 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 hermetically connected. A flow sensor is installed on the front section pipe. A plurality of annular grooves are arranged on the docking part, and a first sealing ring is installed on the docking part.

[0008] The female insertion section includes a front part pipe, a rear part pipe and an inner pipe. One end of the front part pipe is set as a socket, and the other end is fixedly connected to the inner pipe. The other end of the inner pipe extends into the inside of one end of the rear part pipe and is threadedly connected to the rear part pipe. One end of the rear part pipe has an external thread and is set as a docking head. A limiting ring is fixedly arranged inside the rear part pipe. The filter element includes an installation pipe, and filter meshes are respectively arranged at both ends of the installation pipe. One end of the push rod is fixedly connected to the inner pipe through a plurality of fixed connecting plates. One end of the inner pipe extends into the front part pipe to form a second spring limiting platform.

[0009] As a preference of the above technical solution, the diameter of the first communication port gradually becomes smaller from the inside to the outside. A second sealing ring is arranged on the movable valve core, and a first annular fixing groove for fixing the second sealing ring is arranged on the movable valve core.

[0010] As a preference of the above technical solution, a guiding sliding ring is arranged inside the movable chamber, and the guiding sliding ring is fixedly connected to the movable valve core through a plurality of connecting pieces arranged at intervals.

[0011] As a preference of the above technical solution, a locking part is installed on the socket, and a locking ring is arranged on the insertion part. The locking part includes an elastic ring. Pressing parts are respectively fixedly connected to both sides of the elastic ring. A locking block is arranged between the pressing parts. The locking block is fixedly connected to the elastic ring. The elastic ring and the locking block are both located inside the socket. A receiving groove for the locking block to move is arranged inside the socket. Moving openings are respectively arranged on both sides of the socket. The pressing parts are respectively located in the moving openings. A guiding inclined surface is arranged on the inner side of the locking block.

[0012] As a preference of the above technical solution, the installation pipe includes a large outer diameter section and a small outer diameter section. The large outer diameter section is clamped between the inner pipe and the limit ring. A third sealing ring is used to maintain a sealed connection between the installation pipe and the inner pipe. A sealing ring installation groove for fixing the third sealing ring is provided on the small outer diameter section.

[0013] As a preference of the above technical solution, a fourth sealing ring is provided inside the socket joint. A sealed connection is formed between the socket joint and the insertion part through the fourth sealing ring. A sealing ring limit ring for restricting the fourth sealing ring is provided inside the socket joint, and the sealing ring limit ring is buckled with the socket joint.

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

[0015] As a preference of the above technical solution, a conical diversion part is provided at one end of the movable valve core close to the first spring.

[0016] The beneficial effects of the present invention are as follows:

[0017] The two-way stop valve with filtering and flow monitoring according to the present invention has remarkable technical beneficial effects:

[0018] 1. In terms of the filtering function, the filter element provided in the female insertion section can effectively intercept impurities and particles in the fluid, prevent them from entering the pipeline system, ensure the quality of fluid transportation, reduce the wear and blockage of subsequent equipment, extend the service life of the equipment, and greatly reduce the maintenance cost.

[0019] 2. The filter element can be conveniently cleaned, maintained and replaced to ensure the filtering effect.

[0020] 3. The installation of the flow sensor enables the operator to obtain fluid flow information in real time and accurately, provides data support for the precise control and management of the fluid transportation process, helps to optimize the system operation efficiency, and ensures the safe and stable operation of the system.

[0021] 4. A variety of sealing designs for the male insertion section and the female insertion section, such as the first sealing ring, the second sealing ring, etc., cooperate with the locking part and the locking ring structure, greatly improving the sealing performance and stability of the valve connection. Even in long-term use or in the face of complex working conditions such as vibration and pressure fluctuation, leakage can be effectively prevented. Description of the Drawings

[0022] Figure 1 is a cross-sectional structural schematic diagram before the male insertion section and the female insertion section are butted;

[0023] Figure 2 is an internal structural schematic diagram after the male insertion section and the female insertion section are butted;

[0024] Figure 3It is a schematic diagram of the cross-sectional structure after the male plug section and the female plug section are connected. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figures 1-3 As shown, the two-way stop valve with filtering and flow monitoring includes a male plug section and a female plug section.

[0029] One end of the male plug section is set as a docking portion 1, and the other end is set as a plug-in portion 2. The plug-in portion 2 is provided with a first connecting port 3 connected to the inside of the plug-in portion 2, and a movable valve core 4 is provided in the first connecting port 3. A first spring limit platform 5 is provided in the male plug section, and an active chamber 6 for the movable valve core 4 to move is formed between the first spring limit platform 5 and the first connecting port 3. A first spring 7 is provided in the active chamber 6, and the first spring 7 is clamped between the first spring limit platform 5 and the movable valve core 4. A flow sensor 8 is installed on the male plug section.

[0030] One end of the female insertion section is provided with a plug connector 9 for inserting the insertion portion 2, and the other end is provided with a docking head 10. A push rod 11 and a valve core 12 are arranged inside the female insertion section. One end of the push rod 11 is fixedly connected to the female insertion section, and the other end points to the plug connector 9 and is fixedly connected with a second sealing plug 13. One end of the valve core 12 is provided with a second communication port 14, and the other end is bent outward to form a movable limiting ring 15. A fixed limiting ring 16 and a second spring limiting platform 17 are arranged inside the female insertion section. 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 arranged between the valve core 12 and the second spring limiting platform 17. The second sealing plug 13 is located in the second communication port 14 and is hermetically connected to the valve core 12. The diameter of the second sealing plug 13 is smaller than the minimum diameter of the first communication port 3. A filter element is arranged inside the female insertion section. When installing the two-way stop valve of the present invention in a pipeline, first connect the male insertion section to the pipeline through the docking portion 1, and then connect the female insertion section to another pipeline through the docking head 10. Insert the insertion portion 2 of the male insertion section into the plug connector 9 of the female insertion section. During the process of inserting the insertion portion 2 into the plug connector 9, the second sealing plug 13 presses against the movable valve core 4, so that the movable valve core 4 moves against the elastic force of the first spring 7 and leaves the first communication port 3, and the first communication port 3 is opened. At the same time, the insertion portion 2 pushes the valve core 12 against the elastic force of the second spring 18 in the direction of the docking head 10, so that the second communication port 14 is opened. In this way, the inside of the male insertion section and the female insertion section is communicated, and the pipeline is in a communicated state. When it is necessary to overhaul the pipeline, pull out the insertion portion 2 from the plug connector 9. The movable valve core 4 plugs the first communication port 3 under the elastic force of the first spring 7. At the same time, the valve core 12 moves under the elastic force of the second spring 18, and the second sealing plug 13 plugs the second communication port 14. In this way, the male insertion section and the female insertion section respectively form an open circuit state, preventing the liquid in the pipeline from flowing out.

[0031] Further, the male insertion section includes a front section pipe 19 and a rear section pipe 20. One end of the front section pipe 19 is set as the docking portion 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 hermetically connected. The flow sensor 8 is installed on the front section pipe 19. A plurality of annular grooves 21 are arranged on the docking portion 1, and a first sealing ring 22 is installed on the docking portion 1. The flow sensor 8 is a prior art and can be directly purchased from the market for installation.

[0032] Further, the diameter of the first communication port 3 gradually becomes smaller from the inside to the outside. A second sealing ring 23 is arranged on the movable valve core 4, and a first annular fixing groove 24 for fixing the second sealing ring 23 is arranged on the movable valve core 4. The movable valve core 4 moves to the first communication port 3 under the restoring force of the first spring 7 to plug the first communication port 3. The first communication port 3 with a gradually smaller diameter simultaneously plays a limiting role on the movable valve core 4.

[0033] Further, a guiding slip ring 25 is provided in the activity chamber 6. The guiding slip ring 25 is fixedly connected to the movable valve core 4 through a plurality of connecting pieces 26 arranged at intervals. The guiding slip ring 25 improves the stability of the movable valve core 4 during the moving process. After the movable valve core 4 leaves the first communication port 3, the liquid can pass through the gaps between the connecting pieces 26 and can pass through the gaps between the movable valve core 4 and the inner wall of the activity chamber 6.

[0034] Further, the female plug section includes a front pipe 27, a rear pipe 28 and an inner pipe 29. One end of the front pipe 27 is provided as a plug connector 9, and the other end is fixedly connected to the inner pipe 29. The other end of the inner pipe 29 extends into one end of the rear pipe 28 and is threadedly connected to the rear pipe 28. One end of the rear pipe 28 has an external thread and is provided as a docking head 10. A limiting ring 30 is fixedly arranged inside the rear pipe 28. The filter element includes an installation pipe 31. Filter meshes 32 are respectively arranged at both ends of the installation pipe 31. One end of the ejector rod 11 is fixedly connected to the inner pipe 29 through a plurality of fixed connecting plates 33. One end of the inner pipe 29 extends into the front pipe 27 to form a second spring limiting platform 17. The inner pipe 29 is threadedly connected to the rear pipe 28. After the rear pipe 28 is rotated relatively, the filter element can be removed for cleaning, maintenance or replacement.

[0035] Further, a locking member is installed on the plug connector 9, and a locking ring 34 is arranged on the plugging portion 2. The locking member includes an elastic ring 35. Pressing portions 36 are respectively fixedly connected to both sides of the elastic ring 35. A locking block 37 is arranged between the pressing portions 36. 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 plug connector 9. A receiving groove 39 for the locking block 37 to move is arranged inside the plug connector 9. Activity ports 38 are respectively arranged on both sides of the plug connector 9. The pressing portions 36 are respectively located in the activity ports 38. A guiding inclined surface 40 is arranged on the inner side of the locking block 37. When the male plug section and the female plug section are docked, the plugging portion 2 is inserted into the plug connector 9. The locking ring 34 acts on the guiding inclined surface 40 to expand the elastic ring 35, and then the elastic ring 35 automatically recovers, and the locking block 37 is used to lock the locking ring 34 to prevent the plugging portion 2 from separating from the plug connector 9. When the pipeline needs to be inspected, the pressing portions 36 are pressed forcefully to deform the elastic ring 35, and the locking block 37 moves into the receiving groove 39, so that the plugging portion 2 can be pulled out smoothly to realize the separation of the male plug section and the female plug section.

[0036] Further, the installation pipe 31 includes a large outer diameter section 41 and a small outer diameter section 42. The large outer diameter section 41 is clamped between the inner pipe 29 and the limiting ring 30. A third sealing ring 43 is used to keep the sealed connection between the installation pipe 31 and the inner pipe 29. A sealing ring installation groove 44 for fixing the third sealing ring 43 is arranged on the small outer diameter section 42. When installing the filter element, the small outer diameter section 42 is inserted into the inner pipe 29, and then the rear pipe 28 is threadedly connected to the inner pipe 29, so that the large outer diameter section 41 is clamped between the inner pipe 29 and the limiting ring 30 to fix the filter element.

[0037] Furthermore, a fourth sealing ring 45 and a fifth sealing ring 50 are provided inside the plug connector 9. A sealed connection is formed between the plug connector 9 and the plugging portion 2 through the fourth sealing ring 45. A sealing ring limiting ring 46 for restricting the fourth sealing ring 45 is provided inside the plug connector 9, and the sealing ring limiting ring 46 is buckled with the plug connector 9. After the second sealing plug 13 is inserted into the second communication port 14, the valve core 12 forms a sealed connection with the female plug section through the fifth sealing ring 50. After the plug connector 9 is inserted into the plugging portion 2, a sealed connection is formed between the plug connector 9 and the female plug section through the fourth sealing ring 45.

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

[0039] Furthermore, a conical diversion portion 47 is provided at one end of the movable valve core 4 close to the first spring 7. The conical diversion portion 47 has a diversion effect on the liquid in the male plug section, so that the movable valve core 4 is uniformly stressed and can block the first communication port 3 when the two-way stop valve is disconnected.

[0040] It is worth mentioning that technical features such as the flow sensor involved in this invention patent application should be regarded as prior art. The specific structures, working principles, and possible control methods and spatial arrangement methods of these technical features can be selected conventionally in this field and should not be regarded as the invention points of this invention patent. This invention patent will not be further specifically elaborated.

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

Claims

1. Two-way stop valve with filtering and flow monitoring, characterized in that: It includes male and female plug sections. One end of the male plug section is set as a docking part, and the other end is set as a plug-in part. The plug-in part is provided with a first communication port connected to the inside of the plug-in part, and a movable valve core is provided in the first communication port. A first spring limit platform is provided in the male plug section, and an activity chamber for the movable valve core to move is formed between the first spring limit platform and the first communication port. A first spring is provided in the activity chamber, and the first spring is sandwiched between the first spring limit platform and the movable valve core. A flow sensor is installed on the male plug section; One end of the female plug section is provided with a plug connector for the plug-in part to be inserted, and the other end is provided with a docking joint. A push rod and a valve core are provided in the female plug section. One end of the push rod is fixedly connected to the female plug section, and the other end points to the plug connector and is fixedly connected to a second sealing plug. One end of the valve core is provided with a second connecting port, and the other end is bent outward to form a movable limiting ring. A fixed limiting ring and a second spring limiting platform are provided in the female plug section, and 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 connecting port and is sealed and connected to the valve core. The diameter of the second sealing plug is smaller than the minimum diameter of the first connecting port. A filter element is provided in the female plug section. The male plug section includes a front section tube and a rear section tube, one end of the front section tube is set as a docking portion, and the other end is inserted into one end of the rear section tube to form a first spring stopper, the front section tube and the rear section tube are sealed and connected, the flow sensor is installed on the front section tube, a plurality of annular grooves are provided on the docking portion, and a first sealing ring is installed on the docking portion. The female plug section includes a front tube, a rear tube and an internal tube, one end of the front tube is set as a plug joint, and the other end is fixedly connected to the internal tube, the other end of the internal 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 set as a docking joint, a limiting ring is fixedly provided inside the rear tube, the filter element includes a mounting tube, both ends of the mounting tube are respectively provided with filter screens, one end of the push rod is fixedly connected to the internal tube through a plurality of fixed connecting plates, one end of the internal tube extends into the front tube and forms a second spring limiting platform.

2. The two-way stop valve with filtering and flow monitoring as claimed in claim 1, characterized in that: 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.

3. The two-way stop valve with filtering and flow monitoring as claimed in claim 2, characterized in that: A guide slip ring is arranged in the movable chamber, and the guide slip ring is fixedly connected to the movable valve core through a plurality of connecting sheets arranged at intervals.

4. The two-way stop valve with filtering and flow monitoring as claimed in claim 1, characterized in that: A locking piece is installed on the plug connector, and a locking ring is provided on the plug-in part. The locking piece includes an elastic ring, and pressing parts are fixedly connected to both sides of the elastic ring. A locking block is provided between the pressing parts, and the locking block is fixedly connected to the elastic ring. The elastic ring and the locking block are both located inside the plug connector, and a receiving groove for the locking block to move is provided inside the plug connector. Active openings are provided on both sides of the plug connector, and the pressing parts are respectively located in the active openings, and a guiding inclined surface is provided on the inner side of the locking block.

5. The two-way stop valve with filtering and flow monitoring as claimed in claim 4, characterized in that: The installation tube includes a large outer diameter section and a small outer diameter section. The large outer diameter section is clamped between the inner tube and the limiting ring. The installation tube and the inner tube are sealed by a third sealing ring. The small outer diameter section is provided with a sealing ring installation groove for fixing the third sealing ring.

6. The two-way stop valve with filtering and flow monitoring as claimed in claim 4, characterized in that: A fourth sealing ring is provided inside the plug connector, and a sealed connection is formed between the plug connector and the plug-in portion through the fourth sealing ring. A sealing ring limiting ring for limiting the fourth sealing ring is provided inside the plug connector, and the sealing ring limiting ring is buckled with the plug connector.

7. The two-way stop valve with filtering and flow monitoring as claimed in claim 4, characterized in that: The diameter of the second communication port gradually decreases from the outside to the inside.

8. The two-way stop valve with filtering and flow monitoring as claimed in claim 1, characterized in that: A conical flow guide portion is provided on one end of the movable valve core close to the first spring.

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