Marine stop valve with high sealing performance

Abstract

The marine stop valve comprises a stop valve body and circulation pipelines installed on the two sides of the stop valve body, an installation ring is fixedly connected to the inner wall of each circulation pipeline, a movable ring is connected to the inner wall of each installation ring in a sliding mode, the left side of each movable ring penetrates through and extends to the outer portion of the corresponding installation ring, and the right side of each movable ring is connected with the corresponding installation ring in a sliding mode. An electromagnet is mounted on the inner wall of the mounting ring, a magnetic ring is connected to the right side of the movable ring, and the magnetic ring is in magnetic connection with the electromagnet. The magnetism of the electromagnet is changed by changing the current direction of the electromagnet, transverse movement of the filter plate can be achieved in cooperation with the magnetic ring, and therefore the filter plate can vibrate to enable attached impurities to fall into the collecting box to be collected and treated, and the stop valve does not need to be disassembled during treatment. And in addition, impurities in water flow can be crushed through the auxiliary assembly, the filter plate can be prevented from being blocked, and normal circulation is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a ship stop valve with strong sealing performance. Background Art

[0002] The stop valve, also known as the gate valve, is a forced sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force the sealing surface to not leak. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the diameter of the valve stem should be larger, otherwise the valve stem will bend. Since the emergence of self-sealing valves, the flow direction of the medium of the stop valve has been changed to enter the valve cavity from above the valve disc. At this time, under the action of the medium pressure, the force to close the valve is small, while the force to open the valve is large, and the diameter of the valve stem can be reduced accordingly. At the same time, under the action of the medium, this type of valve is also more rigorous. The marine stop valve is a device used to control the pressure, flow and flow direction of the fluid in the ship's pipeline to meet the ship's environmental conditions. The valve is a control device for the fluid pipeline. Its basic function is to connect or cut off the flow of the pipeline medium, change the flow of the medium, change the flow direction of the medium, adjust the pressure and flow of the medium, and protect the normal operation of the pipeline equipment.

[0003] During long-term use of existing marine stop valves, due to too much impurities in the water, impurities may enter the valve body pipeline and cause blockage of the valve. In addition, there are too many debris inside the stop valve pipeline that need to be disassembled and cleaned, which is troublesome to handle and repeated disassembly and assembly will affect the sealing performance of the valve body.

[0004] The patent document with application number CN201920851677.4 discloses a marine stop valve with strong sealing performance, including a valve body, a valve cover and a valve stem. A first support rod is connected to the inside of the pipeline, and a first rotating shaft is rotatably connected to the outer wall of the first support rod. A spiral blade is connected to the end of the first rotating shaft close to the valve body, a scraper is connected to the side wall of the filter plate, and a reciprocating mechanism is connected to the second rotating shaft. The end of the reciprocating mechanism away from the second rotating shaft is connected to the filter plate, and a collecting box is detachably connected to the bottom of the pipeline; the water flow of the utility model rushes to the spiral blade to drive the spiral blade to rotate, and the first rotating shaft will drive the stirring blade to crush larger impurity particles, and then filter the impurities through the filter plate. The micromotor drives the reciprocating mechanism to work, so that the reciprocating mechanism drives the scraper on the filter plate to clean the inside of the pipeline, so that the scraped debris falls into the collection box for centralized treatment, thereby preventing the stop valve from being blocked.

[0005] This structure uses a motor to push the filter plate to remove impurities on its surface, but the impurities attached to the filter plate in this structure are less likely to fall off due to the lateral movement of the filter plate, resulting in poor cleaning effect. At the same time, the collection box in this structure is inconvenient to handle, and it is difficult to quickly clean the impurities after they fall in, affecting the use efficiency of the marine stop valve. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a marine stop valve with strong sealing performance to solve the background technical problems.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A marine stop valve with strong sealing performance, comprising a stop valve body and circulation pipes installed on both sides thereof, a mounting ring is fixedly connected to the inner wall of the circulation pipe, a movable ring is slidably connected to the inner wall of the mounting ring, the left side of the movable ring penetrates and extends to the outside of the mounting ring, an electromagnet is installed on the inner wall of the mounting ring, a magnetic ring is connected to the right side of the movable ring, the magnetic ring is magnetically connected to the electromagnet, a filter plate is fixedly connected to the left side of the movable ring, two filter screens are fixedly installed on the filter plate, a cross shaft is fixedly connected to the inner wall of the circulation pipe, the cross shaft is located on the left side of the filter plate, an auxiliary component is arranged on the left side of the cross shaft, a collection box is fixedly installed at the bottom of the circulation pipe, a sealing seat is slidably installed on the inner wall of the collection box, processing grooves are opened on both sides of the collection box, a threaded sleeve is rotatably connected to the bottom of the collection box, the internal thread of the threaded sleeve is connected to a threaded shaft, and the top of the threaded shaft is connected to the bottom of the sealing seat.

[0009] As a further description of the above technical solution: the auxiliary component includes a synchronization shaft, which is rotatably connected to the left side of the cross shaft, and the synchronization shaft is fixedly connected with evenly distributed vortex blades and a crushing shaft, and the vortex blades are located on the left side of the crushing shaft.

[0010] As a further description of the above technical solution: a scraper ring is fixedly connected to the left side of the filter plate, and the scraper ring is in contact with the inner wall of the flow pipe.

[0011] As a further description of the above technical solution: the bottom of the collection box is provided with evenly distributed drainage holes, and the interior of the drainage holes is connected to the interior of the collection box.

[0012] As a further description of the above technical solution: a grip ring is fixedly connected to the threaded sleeve, and the grip ring is provided with evenly distributed anti-slip grooves.

[0013] As a further description of the above technical solution: a sealing ring is fixedly connected to the inner wall of the collection box, and the sealing seat is in contact with the sealing ring.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] In the utility model, the magnetism of the electromagnet is changed by changing the current direction of the electromagnet, and the lateral movement of the filter plate can be achieved in conjunction with the magnetic ring, so that the filter plate can be vibrated to drop the attached impurities into the collection box for collection and treatment, and the stop valve does not need to be disassembled during treatment, thereby avoiding repeated disassembly and assembly to affect the sealing of the stop valve, and the impurities in the water flow can be broken up by the auxiliary components, which can prevent the filter plate from being blocked and affect the normal circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the flow pipe of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the filter plate of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the collection box of the present utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Stop valve body; 2. Flow pipe; 3. Mounting ring; 4. Movable ring; 5. Electromagnet; 6. Magnetic ring; 7. Filter plate; 8. Filter screen; 9. Cross shaft; 10. Auxiliary components; 1001. Synchronous shaft; 1002. Vortex blade; 1003. Crushing shaft; 11. Collecting box; 12. Sealing seat; 13. Processing tank; 14. Threaded sleeve; 15. Threaded shaft; 16. Scraper ring; 17. Drain hole; 18. Sealing ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] See also Figures 1 to 4In the utility model, a marine stop valve with strong sealing performance comprises a stop valve body 1 and a flow pipe 2 installed on both sides thereof, a mounting ring 3 is fixedly connected to the inner wall of the flow pipe 2, a movable ring 4 is slidably connected to the inner wall of the mounting ring 3, the left side of the movable ring 4 penetrates and extends to the outside of the mounting ring 3, an electromagnet 5 is installed on the inner wall of the mounting ring 3, a magnetic ring 6 is connected to the right side of the movable ring 4, the magnetic ring 6 is magnetically connected to the electromagnet 5, a filter plate 7 is fixedly connected to the left side of the movable ring 4, and a filter plate 7 is fixedly installed on the filter plate 7 Two filter screens 8, a cross shaft 9 is fixedly connected to the inner wall of the circulation pipe 2, the cross shaft 9 is located on the left side of the filter plate 7, an auxiliary component 10 is arranged on the left side of the cross shaft 9, a collecting box 11 is fixedly installed at the bottom of the circulation pipe 2, a sealing seat 12 is slidably installed on the inner wall of the collecting box 11, processing grooves 13 are opened on both sides of the collecting box 11, a threaded sleeve 14 is rotatably connected to the bottom of the collecting box 11, the internal thread of the threaded sleeve 14 is connected to a threaded shaft 15, and the top of the threaded shaft 15 is connected to the bottom of the sealing seat 12.

[0024] The auxiliary component 10 includes a synchronous shaft 1001 , which is rotatably connected to the left side of the cross shaft 9 , and the synchronous shaft 1001 is fixedly connected with evenly distributed vortex blades 1002 and a crushing shaft 1003 , and the vortex blades 1002 are located on the left side of the crushing shaft 1003 .

[0025] When water flows through the circulation pipe 2, the water flows into contact with the vortex blades 1002 on the synchronous shaft 1001, and the impact force causes the vortex blades 1002 to start rotating, and the synchronous shaft 1001 and the crushing shaft 1003 rotate accordingly, and the water flows continuously to the right, and the larger particles of impurities in the water flow will be crushed by the rotating crushing shaft 1003, and then the water flows to the right to pass through the filter plate 7, and the impurities in the water flow cannot penetrate the filter screen 8 and will be on the left side of the filter plate 7. In this state, the sealing seat 12 is at the top inside the collection box 11, so that the water flow will not be affected by the collection box 11 and will continue to move to the right. When the filter plate 7 needs to be cleaned, the user rotates the threaded sleeve 14, and the thread The threaded shaft 15 connected to the threaded sleeve 14 begins to move downward, causing the sealing seat 12 to move downward to expose the processing tank 13. The user changes the current direction of the electromagnet 5, and the magnetic field generated by the electromagnet 5 is the same as the magnetic ring 6, so that the magnetic ring 6 is magnetically acted and begins to push the movable ring 4 to move to the left inside the mounting ring 3. The filter plate 7 moves left until it contacts and collides with the cross shaft 9. At this time, the impurities attached to the filter screen 8 fall into the bottom collection box 11 due to the vibration, and are at the top of the sealing seat 12. The user can process them through the processing tank 13. The electromagnet 5 changes the current direction again to generate magnetism to adsorb the magnetic ring 6, thereby pulling the filter plate 7 back to its original position.

[0026] In the utility model, the magnetism of the electromagnet 5 is changed by changing the current direction thereof, and the filter plate 7 can be moved laterally in cooperation with the magnetic ring 6, so that the filter plate 7 can vibrate to drop the attached impurities into the collection box 11 for collection and treatment, and then the stop valve does not need to be disassembled during treatment, thereby avoiding repeated disassembly and assembly to affect the sealing of the stop valve, and the impurities in the water flow can be broken by the auxiliary component 10, so as to prevent the filter plate 7 from being blocked and affecting the normal circulation.

[0027] See also Figure 2 , wherein: a scraper ring 16 is fixedly connected to the left side of the filter plate 7 , and the scraper ring 16 contacts the inner wall of the flow pipe 2 .

[0028] In the utility model, when the filter plate 7 moves to the left, the scraper ring 16 also moves to the left, and the scraper ring 16 can scrape impurities from the inner wall of the flow pipe 2.

[0029] See also Figure 2 and 4 , wherein: the bottom of the collection box 11 is provided with evenly distributed drainage holes 17 , and the interior of the drainage holes 17 is connected to the interior of the collection box 11 .

[0030] In the utility model, the drainage hole 17 can discharge the water flow entering the bottom of the sealing seat 12 when the sealing seat 12 moves vertically, so as to avoid the accumulation of water flow affecting the use of the stop valve.

[0031] See also Figure 1 , 2 4, wherein: a grip ring is fixedly connected to the threaded sleeve 14, and the grip ring is provided with evenly distributed anti-slip grooves.

[0032] In the utility model, when the user needs to rotate the threaded sleeve 14, the grip ring can provide a good fulcrum for the user, and the anti-skid pattern can prevent the user from slipping.

[0033] See also Figure 2 and 4 , wherein: a sealing ring 18 is fixedly connected to the inner wall of the collecting box 11 , and the sealing seat 12 is in contact with the sealing ring 18 .

[0034] In the utility model, when the sealing seat 12 is at the top, the sealing ring 18 is squeezed, thereby improving the sealing performance of the collecting box 11 and preventing water from overflowing and affecting the sealing performance of the stop valve body 1 .

[0035] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A marine stop valve with strong sealing performance, comprising a stop valve body (1) and flow pipes (2) installed on both sides thereof, characterized in that: A mounting ring (3) is fixedly connected to the inner wall of the circulation pipe (2); a movable ring (4) is slidably connected to the inner wall of the mounting ring (3); the left side of the movable ring (4) penetrates and extends to the outside of the mounting ring (3); an electromagnet (5) is installed on the inner wall of the mounting ring (3); a magnetic ring (6) is connected to the right side of the movable ring (4); the magnetic ring (6) is magnetically connected to the electromagnet (5); a filter plate (7) is fixedly connected to the left side of the movable ring (4); two filter screens (8) are fixedly installed on the filter plate (7); A cross shaft (9) is fixedly connected to the inner wall of the circulation pipe (2), the cross shaft (9) is located on the left side of the filter plate (7), an auxiliary component (10) is arranged on the left side of the cross shaft (9), a collection box (11) is fixedly installed at the bottom of the circulation pipe (2), a sealing seat (12) is slidably installed on the inner wall of the collection box (11), processing grooves (13) are provided on both sides of the collection box (11), a threaded sleeve (14) is rotatably connected to the bottom of the collection box (11), the internal thread of the threaded sleeve (14) is connected to a threaded shaft (15), and the top end of the threaded shaft (15) is connected to the bottom of the sealing seat (12).

2. A marine stop valve with strong sealing performance according to claim 1, characterized in that: The auxiliary component (10) comprises a synchronous shaft (1001), the synchronous shaft (1001) is rotatably connected to the left side of the cross shaft (9), and the synchronous shaft (1001) is fixedly connected with evenly distributed vortex blades (1002) and a crushing shaft (1003), and the vortex blades (1002) are located on the left side of the crushing shaft (1003).

3. A marine stop valve with strong sealing performance according to claim 1, characterized in that: A scraper ring (16) is fixedly connected to the left side of the filter plate (7), and the scraper ring (16) is in contact with the inner wall of the flow pipe (2).

4. A marine stop valve with strong sealing performance according to claim 1, characterized in that: The bottom of the collection box (11) is provided with evenly distributed drainage holes (17), and the interior of the drainage holes (17) is communicated with the interior of the collection box (11).

5. A marine stop valve with strong sealing performance according to claim 1, characterized in that: A grip ring is fixedly connected to the threaded sleeve (14), and the grip ring is provided with evenly distributed anti-slip patterns.

6. A marine stop valve with strong sealing performance according to claim 1, characterized in that: A sealing ring (18) is fixedly connected to the inner wall of the collection box (11), and the sealing seat (12) is in contact with the sealing ring (18).

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