High and medium pressure gate valve with cleaning function
By introducing scraper and pusher assemblies into high- and medium-pressure gate valves, automatic cleaning and rust removal of the gate's outer wall are achieved, solving the problem of difficult opening and closing of the gate caused by rust accumulation, and improving the service life and smooth operation of the gate valve.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-06
AI Technical Summary
After long-term use, existing high and medium pressure gate valves suffer from difficulties in opening and closing due to the accumulation of rust and impurities on the outer wall of the gate, and may even become stuck, affecting sealing performance and service life.
A high-pressure gate valve with a cleaning function was designed. The rust and scale are pushed to the drain port by scraping the outer wall of the gate with a scraper and pushing plate. Combined with the handwheel drive of the rotating column and threaded column, the gate can be slidably cleaned and drained, ensuring unobstructed flow.
It effectively removes rust and scale from the outer wall of the gate, prevents jamming, improves the service life and smooth operation of the gate valve, and ensures normal operation.
Smart Images
Figure CN223975560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high and medium pressure gate valve technology, and in particular to a high and medium pressure gate valve with a cleaning function. Background Technology
[0002] With industrial development and increasing demands for fluid pipeline management, high and medium pressure gate valves are increasingly used in various pipeline systems. As a crucial control element, gate valves are commonly used for fluid flow control. Due to their simple design, rapid opening and closing, and good sealing performance, they are widely used in water treatment, power, petroleum, and chemical industries. However, with prolonged use, gate valves are affected by corrosive substances, impurities, and deposits in the fluid medium during opening and closing, leading to increased friction between the valve body and the valve itself, affecting sealing performance and normal operation. Therefore, improving the service life and smooth operation of gate valves, especially effectively cleaning their internal structure and the outer wall of the gate after long-term use, has become a problem that the industry needs to solve.
[0003] Currently, most gate valves on the market are operated manually or electrically. Common mechanical structures include valve body, gate, screw, handwheel and sealing ring. When opening and closing, the valve stem or transmission device is driven by rotating the handwheel, which in turn drives the gate to rise and fall.
[0004] In the prior art, with the long-term use of gate valves, the outer wall of the gate is often corroded by the deposited rust and impurities, making it more difficult to open and close the gate, and even causing jamming. This is due to the lack of an effective cleaning mechanism, which makes it impossible to clean the rust and dirt inside the gate and valve body in time, seriously affecting the normal operation and sealing performance of the valve. Therefore, a high-pressure gate valve with cleaning function is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a high-pressure gate valve with a cleaning function, which aims to improve the problem of gate valve jamming caused by rust and scale buildup on the outer wall of the gate after long-term use in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-pressure gate valve with cleaning function, comprising a valve body, an inlet pipe fixedly connected to one side of the valve body, an outlet pipe fixedly connected to the other side of the valve body, a support frame fixedly connected to the top of the outlet pipe, a rotating column rotatably connected inside the support frame, a gate slidably connected inside the valve body, and a cleaning component provided inside the valve body.
[0007] The cleaning component includes a scraper that is slidably connected inside the valve body. A nut is provided on the outer wall of the valve body and is threadedly connected to the inside of the valve body. One end of the nut is threadedly connected to the inside of the scraper. A sewage discharge component is provided inside the valve body.
[0008] As a further description of the above technical solution: the sewage discharge assembly includes a push plate, which is slidably connected inside the valve body.
[0009] As a further description of the above technical solution: a sliding rod is fixedly connected to the outer wall of the push plate, and a pull rod is fixedly connected to one end of the sliding rod.
[0010] As a further description of the above technical solution: a spring is sleeved on the outer wall of the sliding rod, one end of the spring is fixedly connected to the side wall of the push plate, and the other end of the spring is fixedly connected to the inside of the valve body.
[0011] As a further description of the above technical solution: a drain port is provided at the bottom of the valve body, and a sealing plate is slidably connected inside the valve body.
[0012] As a further description of the above technical solution: a handwheel is fixedly connected to the top of the rotating column, and a threaded column is fixedly connected to the bottom of the rotating column.
[0013] As a further description of the above technical solution: a first limiting ring is fixedly connected to the outer wall of the rotating column, a second limiting ring is fixedly connected to the outer wall of the rotating column, and the threaded column is threadedly connected inside the gate.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, the rotating column and the threaded column are driven to rotate by rotating the handwheel, so that the gate slides up and down inside the valve body. When the gate slides up and down, the scraper scrapes the outer wall of the gate, thereby achieving the effect of cleaning the outer wall of the gate. This solves the problem of rust and scale forming on the outer wall of the gate after long-term use, which causes the gate valve to jam, and improves the service life of the gate valve.
[0016] 2. In this utility model, by pulling the pull rod, the sliding rod is driven to slide inside the valve body. Then, the sliding rod drives the push plate to slide inside the valve body. At the same time, the push plate compresses the spring, pushing the rust to the drain port and pulling the sealing plate to open the drain port. This achieves the effect of discharging the cleaned rust, solving the problem of rust accumulating inside the gate valve and causing blockage of the gate valve channel, and improving the smoothness of the gate valve. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of a high-pressure gate valve with a cleaning function proposed in this utility model;
[0018] Figure 2 This is a cross-sectional structural diagram of the valve body of a high-pressure gate valve with cleaning function proposed in this utility model.
[0019] Figure 3 This is a schematic diagram showing the installation position of the threaded post of a high-pressure gate valve with cleaning function proposed in this utility model.
[0020] Figure 4 This is a schematic diagram showing the installation position of the sliding rod of a high-pressure gate valve with cleaning function proposed in this utility model.
[0021] Legend:
[0022] 1. Valve body; 2. Inlet pipe; 3. Outlet pipe; 4. Support frame; 5. Handwheel; 6. Rotating column; 7. Limit ring one; 8. Limit ring two; 9. Threaded column; 10. Gate; 11. Scraper; 12. Pull rod; 13. Sealing plate; 14. Push plate; 15. Sliding rod; 16. Spring; 17. Drain outlet; 18. Nut. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, those skilled in the art who have not made any innovative embodiments are all within the protection scope of the present utility model.
[0024] Reference Figure 1 - Figure 4 An embodiment of this utility model is provided: a high-pressure gate valve with cleaning function, including a valve body 1, an inlet pipe 2 fixedly connected to one side of the valve body 1, an outlet pipe 3 fixedly connected to the other side of the valve body 1, a support frame 4 fixedly connected to the top of the outlet pipe 3, a rotating column 6 rotatably connected inside the support frame 4, a gate 10 slidably connected inside the valve body 1, and a cleaning component provided inside the valve body 1.
[0025] The cleaning assembly includes a scraper 11, which is slidably connected inside the valve body 1. The scraper 11 effectively cleans the outer wall of the gate 10 through its sliding function, preventing the accumulation of rust and impurities and ensuring the normal opening and closing of the valve. A nut 18 is provided on the outer wall of the valve body 1, and the outer wall of the nut 18 is threadedly connected to the inside of the valve body 1. One end of the nut 18 is threadedly connected to the inside of the scraper 11. This design allows the scraper 11 to move up and down inside the valve body 1 with the drive of the rotating column 6, thereby achieving scraping and cleaning of the outer wall of the gate 10 and removing rust and deposits. A drain assembly is provided inside the valve body 1. The drain assembly, through the action of the push plate 14, pushes the accumulated rust towards the drain port 17 when the valve is opened, ensuring that the rust can be discharged smoothly during the cleaning process, avoiding blockage of the valve passage, and improving the smoothness and service life of the gate valve.
[0026] Reference Figure 1 - Figure 4 The sewage discharge assembly includes a push plate 14, which is slidably connected inside the valve body 1. A sliding rod 15 is fixedly connected to the outer wall of the push plate 14, and a pull rod 12 is fixedly connected to one end of the sliding rod 15. The pull rod 12 drives the sliding rod 15 to slide by external force, thereby pushing the push plate 14 to move accordingly. A spring 16 is sleeved on the outer wall of the sliding rod 15. One end of the spring 16 is fixedly connected to the side wall of the push plate 14, and the other end is fixedly connected to the inside of the valve body 1. The spring 16 provides a restoring force to the push plate 14, ensuring that it can return to its original position normally during the cleaning process and avoiding damage due to excessive operation. A sewage discharge port 17 is opened at the bottom of the valve body 1. The sewage discharge port 17 can effectively discharge accumulated rust and impurities during the cleaning process, ensuring the smooth flow of the valve. A sealing plate 13 is slidably connected inside the valve body 1. The sealing plate 13 can effectively seal the sewage discharge port 17 when the sewage discharge operation is completed to prevent leakage and pollution. A handwheel 5 is fixedly connected to the top of the rotating column 6. The function of handwheel 5 is to provide power by rotating handwheel 5, which drives rotating column 6 to rotate, thereby realizing the opening and closing operation of valve. Threaded column 9 is fixedly connected to the bottom of rotating column 6. Threaded column 9 is threadedly connected to the inside of gate 10. The function of threaded column 9 is to allow gate 10 to slide up and down inside valve body 1 through its threaded structure, thereby realizing fluid flow control. Limiting ring 1 7 is fixedly connected to the outer wall of rotating column 6. The function of limiting ring 1 7 is to limit the rotation range of rotating column 6 and avoid mechanical damage caused by excessive rotation. Limiting ring 2 8 is fixedly connected to the outer wall of rotating column 6. Limiting ring 2 8 plays a second limiting role during the rotation of rotating column 6.
[0027] Working Principle: When using a gate valve to control water flow, rust and scale will accumulate on the gate 10 inside the valve body 1 after prolonged use. To clean this rust and scale, the handwheel 5 rotates the rotating column 6 within the support frame 4. Simultaneously, the limiting rings 7 and 8 restrict the rotation of the rotating column 6 within the support frame 4. The rotation of the rotating column 6 drives the threaded column 9 to rotate, which in turn causes the threaded gate 10 to slide within the valve body 1. As the gate 10 slides up and down within the valve body 1, its outer wall scrapes against the scraper 11 inside the valve body 1, removing the rust and scale. This achieves the purpose of scraping the outer wall of the gate 10 during opening and closing, thus cleaning the rust and scale. To achieve effective cleaning of the gate valve, after the rust on the outer wall of the gate 10 is scraped by the scraper 11 and lodged inside the valve body 1, to prevent the rust from clogging the inside of the gate valve, the pull rod 12 is first pulled to drive the sliding rod 15 to slide inside the valve body 1. Then, the sliding rod 15 drives the push plate 14 to slide inside the valve body 1. During the movement, the push plate 14 compresses the spring 16, pushing the rust inside the valve body 1 to the drain port 17. Then, the sealing plate 13 is pulled to open the drain port 17, pushing the rust to the outside of the valve body 1. Then, the sealing plate 13 is reset to seal the gate valve. After the draining is completed, the pull rod 12 is released, the spring 16 releases its elasticity, and the push plate 14 is reset, thus achieving the purpose of discharging the rust cleaned from inside the gate valve.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high pressure gate valve with cleaning function, comprising a valve body (1), characterized in that: One side of the valve body (1) is fixedly connected with the water inlet pipeline (2), the other side of the valve body (1) is fixedly connected with the water outlet pipeline (3), the top of the water outlet pipeline (3) is fixedly connected with the support frame (4), the inside of the support frame (4) is rotatably connected with the rotating column (6), the inside of the valve body (1) is slidably connected with the gate (10), and the inside of the valve body (1) is provided with a cleaning assembly; The cleaning assembly includes a scraper (11) which is slidably connected in the valve body (1), the outer wall of the valve body (1) is provided with a nut (18), the outer wall of the nut (18) is threadedly connected in the valve body (1), one end of the nut (18) is threadedly connected in the scraper (11), and the inside of the valve body (1) is provided with a blowdown assembly.
2. A high pressure gate valve with cleaning function according to claim 1, characterized in that: The blowdown assembly includes a push plate (14) which is slidably connected in the valve body (1).
3. A high pressure gate valve with cleaning function according to claim 2, characterized in that: The outer wall of the push plate (14) is fixedly connected with a sliding rod (15), one end of the sliding rod (15) is fixedly connected with a pull rod (12).
4. A high pressure gate valve with cleaning function according to claim 3, characterized in that: The outer wall of the sliding rod (15) is sleeved with a spring (16), one end of the spring (16) is fixedly connected to the side wall of the push plate (14), and the other end of the spring (16) is fixedly connected to the inside of the valve body (1).
5. A high pressure gate valve with cleaning function according to claim 4, characterized in that: The bottom of the valve body (1) is provided with a blowdown opening (17), and the inside of the valve body (1) is slidably connected with a sealing plate (13).
6. A high pressure gate valve with cleaning function according to claim 1, characterized in that: The top of the rotating column (6) is fixedly connected with a hand wheel (5), and the bottom of the rotating column (6) is fixedly connected with a threaded column (9).
7. A high pressure gate valve with cleaning function according to claim 6, characterized in that: The outer wall of the rotating column (6) is fixedly connected with a limiting ring one (7), the outer wall of the rotating column (6) is fixedly connected with a limiting ring two (8), and the threaded column (9) is threadedly connected in the gate (10).