High-durability wear-resistant valve

Abstract

The utility model relates to the technical field of valves, in particular to a high-durability wear-resistant valve which is internally provided with an outer valve body, and the left end face and the right end face of the outer valve body are provided with connecting pipe openings communicated with an external water pipe. The electric heating plates at the two positions are electrified for heating, the problem that the valve cannot work normally due to water flow freezing in the low-temperature severe environment can be prevented, and due to the resilience force of the pressure-bearing spring and the buffer spring, the valve cannot work normally, and the service life of the valve is prolonged. The scraping frame can be attached to the surface of the butterfly plate all the time, the service life of the butterfly plate can be greatly prolonged, the frequency of replacing the butterfly plate is reduced, and therefore the use cost of the valve is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a high-durability wear-resistant valve. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure and flow) of the conveying medium. Valves are control components in fluid conveying systems and have functions such as shutoff, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief.

[0003] Valves working in harsh environments may experience side leakage due to factors such as excessive water pressure or excessive particles and impurities in the water. When the valve body is working, these particles will rub against the valve wall, causing the valve to leak, and the valve body needs to be replaced frequently. Utility Model Content

[0004] The purpose of the utility model is to provide a high-durability wear-resistant valve to overcome the above-mentioned defects in the prior art.

[0005] According to the utility model, a highly durable and wear-resistant valve comprises an outer valve body, and both left and right end surfaces of the outer valve body are provided with connecting pipe ports connected to external water pipes;

[0006] The outer valve body is provided with a valve on-off cavity connected to the left and right sides, a rotating rod is rotatably provided in the valve on-off cavity, the upper end surface of the rotating rod passes through the outer valve body and is fixedly connected to an external valve starting device, the outer circular surface of the rotating rod located in the valve on-off cavity is symmetrical on the left and right sides and is fixedly provided with two disc plates.

[0007] In some embodiments, the left and right walls of the valve through-and-stop cavity are symmetrical and fixed with two electric heating plates. The front end surface of the electric heating plate extends to the front end surface of the outer valve body and is fixed with an electrical connection port. The electrical connection port can be connected to an external wiring device and energize the electric heating plate. After energization, the electric heating plate can perform heating work.

[0008] In some embodiments, the left and right walls of the valve through-stop cavity are provided with elastic sealing frames that can move left and right. The end face of the elastic sealing frame close to the disc plate on the same side is made of elastic material and fits with the outer cylindrical surface of the disc plate, so as to perform secondary elastic sealing.

[0009] In some embodiments, a rebound chamber is provided between the outer circular surface of the elastic sealing frame and the inner wall of the valve through-stop chamber, and a plurality of evenly arranged sealing springs are fixedly connected between a side wall of the rebound chamber close to the rotating rod and an end face of the elastic sealing frame close to the rotating rod.

[0010] In some embodiments, the right end surface of the elastic sealing frame is provided with a scraper frame that can move left and right, the left end surface of the scraper frame contacts the right end surface of the elastic sealing frame, and the lower end surface of the scraper frame is made of high wear-resistant material and fits the outer circumferential surface of the disc plate.

[0011] In some embodiments, the scraper frame is provided with an internal connecting frame fixedly connected to the inner wall of the valve stop cavity on the side away from the rotating rod, and an elastic sealing ring is fixedly connected between the end surface of the internal connecting frame close to the rotating rod and the end surface of the scraper frame away from the rotating rod, and the elastic sealing ring is made of elastic material.

[0012] In some embodiments, a plurality of evenly arranged pressure springs are fixedly connected between the inclined portion of the end face of the scraper frame away from the center and the inner wall of the valve through-stop chamber, a vibration-damping chamber is provided on the side of the scraper frame away from the center, the upper end face of the scraper frame extends into the vibration-damping chamber, a buffer spring is fixedly connected between the side wall of the vibration-damping chamber away from the center and the end face of the scraper frame away from the center, the pressure spring can buffer the water flow, and the buffer spring can reduce the vibration of the scraper frame so that the lower end face of the scraper frame is always in contact with the disc plate on the same side.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] 1. When the valve is opened, the lower end surface of the scraper frame of the utility model will slide with the outer cylindrical surface of the disc plate to scrape off the granular impurities attached to the surface of the disc plate, so that the impurities will not contact with the elastic sealing frame and the inner wall of the valve stop cavity and scratch the surface of the disc plate. At the same time, the electric heating plates at two locations are energized and heated, which can prevent the problem of the valve not being able to work normally due to the freezing of water flow in a low-temperature harsh environment. In addition, due to the resilience of the pressure spring and the buffer spring, the scraper frame can always fit with the surface of the disc plate, which can greatly improve the working life of the disc plate, reduce the frequency of replacing the disc plate, and thus reduce the use cost of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 It is a right view of the utility model;

[0017] Figure 3 It is a top view of the utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of a highly durable wear-resistant valve of the utility model;

[0019] Figure 5 This utility model Figure 4A partial enlarged schematic diagram of the middle elastic sealing frame component.

[0020] In the figure:

[0021] 11. Outer valve body; 12. Connecting pipe port; 13. Electrical port; 14. Rotating rod; 15. Disc plate; 16. Electric heating plate; 17. Scraping frame; 18. Elastic sealing frame; 19. Rebound chamber; 20. Damping chamber; 21. Elastic sealing ring; 22. Internal connecting frame; 23. Pressure spring; 24. Sealing spring; 25. Buffer spring; 26. Valve through chamber. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-Figure 5 , which is the first embodiment of the utility model, and provides an embodiment of a highly durable and wear-resistant valve, comprising an outer valve body 11, and the left and right end surfaces of the outer valve body 11 are provided with connecting pipe ports 12 connected to external water pipes;

[0025] The outer valve body 11 is provided with a valve on-off cavity 26 connected to the left and right, and a rotating rod 14 is rotatably provided in the valve on-off cavity 26. The upper end surface of the rotating rod 14 passes through the outer valve body 11 and is fixedly connected to an external valve starting device. The outer circumferential surface of the rotating rod 14 located in the valve on-off cavity 26 is symmetrical on the left and right and is fixedly provided with two disc plates 15.

[0026] The left and right walls of the valve through-and-stop chamber 26 are symmetrical and fixed with two electric heating plates 16. The front end surface of the electric heating plate 16 extends to the front end surface of the outer valve body 11 and is fixed with an electrical connection port 13. The electrical connection port 13 can be connected to an external wiring device to energize the electric heating plate 16. The electric heating plate 16 can perform heating after being energized.

[0027] The left and right walls of the valve stop chamber 26 are provided with elastic sealing frames 18 that can move left and right. The end surface of the elastic sealing frame 18 close to the disc plate 15 on the same side is made of elastic material and fits with the outer circumferential surface of the disc plate 15, so as to perform secondary elastic sealing.

[0028] A rebound chamber 19 is provided between the outer circumferential surface of the elastic sealing frame 18 and the inner wall of the valve through-stop chamber 26 , and a plurality of evenly arranged sealing springs 24 are fixedly connected between a side wall of the rebound chamber 19 close to the rotating rod 14 and an end face of the elastic sealing frame 18 close to the rotating rod 14 .

[0029] The right end surface of the elastic sealing frame 18 is provided with a scraper frame 17 that can move left and right. The left end surface of the scraper frame 17 contacts the right end surface of the elastic sealing frame 18. The lower end surface of the scraper frame 17 is made of high wear-resistant material and fits the outer circumferential surface of the disc plate 15.

[0030] The scraper frame 17 is provided with an internal connecting frame 22 fixedly connected to the inner wall of the valve stop chamber 26 on the side away from the rotating rod 14, and an elastic sealing ring 21 is fixedly connected between the end surface of the internal connecting frame 22 close to the rotating rod 14 and the end surface of the scraper frame 17 away from the rotating rod 14, and the elastic sealing ring 21 is made of elastic material.

[0031] A plurality of evenly arranged pressure springs 23 are fixedly connected between the inclined part of the end face of the scraper frame 17 away from the center and the inner wall of the valve through-stop chamber 26. A damping chamber 20 is provided on the side of the scraper frame 17 away from the center. The upper end face of the scraper frame 17 extends into the damping chamber 20. A buffer spring 25 is fixedly connected between a side wall of the damping chamber 20 away from the center and the end face of the scraper frame 17 away from the center. The pressure spring 23 can buffer the water flow, and the buffer spring 25 can dampen the vibration of the scraper frame 17, so that the lower end face of the scraper frame 17 is always in contact with the disc plate 15 on the same side.

[0032] Specific workflow:

[0033] When the valve is closed, the disc plates 15 on both sides move to the left and right and fit with the scraper frame 17 and the elastic sealing frame 18 on the same side. At this time, the disc plate 15 and the scraper frame 17 will be impacted by the external water flow. When the scraper frame 17 receives the impact, the elastic sealing ring 21, the pressure spring 23, the elastic sealing frame 18 and the sealing spring 24 receive the impact force, so that the elastic sealing frame 18 is squeezed to the right and the outer side of the disc plate 15 is elastically sealed, so that the disc plate 15 completes the closing work, and the valve can prevent water from passing through. When the rotating rod 14 rotates again to open the valve, the lower end surface of the scraper frame 17 will contact the outer surface of the disc plate 15. The circular surface slides to scrape off the granular impurities attached to the surface of the disc plate 15, so that they will not contact the elastic sealing frame 18 and the inner wall of the valve stop cavity 26 and scratch the surface of the disc plate 15. At the same time, the electric heating plates 16 at two locations are energized and heated, which can prevent the problem of the valve not being able to work normally due to the freezing of water flow in a low-temperature harsh environment. Due to the resilience of the pressure-bearing spring 23 and the buffer spring 25, the scraping frame 17 can always fit the surface of the disc plate 15, which can greatly improve the working life of the disc plate 15, reduce the frequency of replacing the disc plate 15, and thus reduce the cost of using the valve.

[0034] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A highly durable and wear-resistant valve, comprising an outer valve body (11), characterized in that: The left and right end surfaces of the outer valve body (11) are provided with connecting pipe openings (12) which are connected with external water pipes; The outer valve body (11) is provided with a valve stop chamber (26) connected to the left and right, and a rotating rod (14) is rotatably provided in the valve stop chamber (26). The upper end surface of the rotating rod (14) passes through the outer valve body (11) and is fixedly connected to an external valve actuating device. The outer circumferential surface of the rotating rod (14) located in the valve stop chamber (26) is symmetrical on the left and right and is fixedly provided with two disc plates (15). The left and right walls of the valve stop chamber (26) are symmetrical on the left and right and are fixedly provided with two electric heating plates (16). The front end surface of the electric heating plate (16) extends to the front of the outer valve body (11). An electrical connection port (13) is fixedly provided on the end surface, and the electrical connection port (13) can be connected to an external wiring device to energize the electric heating plate (16); elastic sealing frames (18) that can move left and right are provided on the left and right walls of the valve stop chamber (26); a rebound chamber (19) is provided between the outer cylindrical surface of the elastic sealing frame (18) and the inner wall of the valve stop chamber (26); a plurality of evenly arranged sealing springs (24) are fixedly connected between a side wall of the rebound chamber (19) close to the rotating rod (14) and an end face of the elastic sealing frame (18) close to the rotating rod (14).

2. A highly durable wear-resistant valve according to claim 1, characterized in that: The right end surface of the elastic sealing frame (18) is provided with a scraping frame (17) which can move left and right, and the left end surface of the scraping frame (17) contacts the right end surface of the elastic sealing frame (18).

3. A highly durable wear-resistant valve according to claim 2, characterized in that: An internal connection frame (22) fixedly connected to the inner wall of the valve stop chamber (26) is provided on the side of the scraper frame (17) away from the rotating rod (14), and an elastic sealing ring (21) is fixedly connected between the end surface of the internal connection frame (22) close to the rotating rod (14) and the end surface of the scraper frame (17) away from the rotating rod (14).

4. A highly durable wear-resistant valve according to claim 3, characterized in that: A plurality of uniformly arranged pressure-bearing springs (23) are fixedly connected between the inclined portion of the end face of the scraper frame (17) away from the center and the inner wall of the valve stop chamber (26); a vibration-damping chamber (20) is provided on the side of the scraper frame (17) away from the center; the upper end face of the scraper frame (17) extends into the vibration-damping chamber (20); and a buffer spring (25) is fixedly connected between a side wall of the vibration-damping chamber (20) away from the center and the end face of the scraper frame (17) away from the center.

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