Corrosion-resistant valve suitable for corrosive medium

Abstract

The utility model relates to a corrosion-resistant valve suitable for corrosive media, and belongs to the technical field of corrosion-resistant valves. The corrosion-resistant valve suitable for the corrosive medium comprises a valve body, and the inner wall of the valve body is slidably connected with a filter screen; the anti-loosening mechanism comprises bolts which are in threaded connection with the two sides of the inner wall of the filter screen, the surfaces of the bolts are in threaded connection with the inner wall of the valve, the upper end of the surface of the valve is fixedly connected with a fixing block, and the inner wall of the fixing block is in sliding connection with a rubber frame; the bolt is installed in the filter screen and the valve in a threaded mode, the filter screen is fixed in the valve, the rubber frame is pushed by the elastic force of the spring to automatically slide into the filter screen and shield the top of the bolt, locking of the filter screen and the bolt is achieved, and then it is guaranteed that the bolt is stably installed in the filter screen and the valve in a threaded mode; therefore, the stability of the filter screen installed in the valve is improved, and the corrosion resistance of the interior of the valve is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of corrosion-resistant valve technology, and in particular to a corrosion-resistant valve suitable for corrosive media. Background Technology

[0002] Corrosion-resistant valves resist chemical corrosion through special materials or structural designs, ensuring the stability and service life of valves in harsh media environments. Corrosion-resistant valves are specially designed for pipeline control devices that control the flow of corrosive media such as strong chemical acids. They achieve functions such as guiding, shutting off, and regulating by changing the cross-section or direction of the flow channel.

[0003] According to the Chinese patent "A Corrosion-Resistant Gate Valve" authorized announcement number "CN221628884U", a filter screen is installed inside the gate valve body through the cooperation of a fixed plate, tension spring, slide rod, handle, rotating shaft and locking block. This allows the filter screen to filter out impurities in the fluid, thereby reducing their direct contact with the internal materials of the gate valve and improving the corrosion resistance of the gate valve.

[0004] In the aforementioned application, because the tension spring is elastic, the fluid flow inside the gate valve will generate vibration force that is transmitted to the surface of the filter screen. This can easily cause the tension spring and the locking block to shake, thereby affecting the stability of the filter screen inside the gate valve and thus affecting the corrosion resistance of the gate valve. Utility Model Content

[0005] Therefore, it is necessary to provide a corrosion-resistant valve suitable for corrosive media to address the problem that the filter screen is unstable inside the gate valve, thus affecting the corrosion resistance of the gate valve's interior.

[0006] The system includes: a valve with a filter screen slidably connected to its inner wall; and an anti-loosening mechanism comprising bolts threaded to both sides of the filter screen's inner wall, the bolts threaded to the valve's inner wall, a fixing block fixedly connected to the upper surface of the valve, a rubber frame slidably connected to the inner wall of the fixing block, the rubber frame slidably connected to the filter screen's inner wall, a spring fixedly connected to the opposite end of the rubber frame and the fixing block, a limit rod slidably connected to the inner wall of the fixing block, and the limit rod slidably connected to the inner wall of the rubber frame. By threading the bolts into the filter screen and valve, the filter screen is fixed inside the valve. The spring's elastic force pushes the rubber frame to automatically slide into the filter screen and block the top of the bolts, locking the filter screen and bolts in place. This ensures the bolts are stably threaded into the filter screen and valve, thus improving the stability of the filter screen within the valve.

[0007] In one embodiment, a shielding block is slidably connected to one side of the inner wall of the fixing block.

[0008] In one embodiment, two elastic balls are fixedly connected to one side of the fixing block, and the surfaces of the elastic balls are engaged with the inner wall of the limiting rod. The interaction between the fixing block and the elastic balls increases the resistance to the movement of the limiting rod, thereby ensuring that the limiting rod is stably engaged within the rubber frame. This ensures the stable locking of the rubber frame to the filter screen and bolts, thus guaranteeing the stability of the filter screen installed within the valve, ensuring the filter screen's effectiveness in intercepting impurities in the liquid, and ensuring the corrosion resistance of the valve's interior.

[0009] In one embodiment, a connecting rope is fixedly connected to one side of the shielding block, and the other end of the connecting rope is fixedly connected to one side of the fixing block.

[0010] In one embodiment, a sealing ring is fixedly connected to the inner wall of the valve, and the surface of the filter screen is slidably connected to the inner wall of the sealing ring. The sealing ring seals the connection between the filter screen and the valve, preventing liquid inside the valve from leaking out through the filter screen.

[0011] In one embodiment, a damping sleeve is fixedly connected to the opposite end of the rubber frame and the fixed block, and the surface of the spring is located inside the damping sleeve. The damping sleeve reduces the extension and contraction amplitude of the spring, thereby reducing the frequency of extension and contraction of the rubber frame.

[0012] In one embodiment, an arc-shaped block is fixedly connected to one side of the fixing block.

[0013] In one embodiment, a limiting groove is formed on the inner wall of the fixing block, and the surface of the limiting rod is slidably connected to the inner wall of the limiting groove.

[0014] Beneficial effects

[0015] 1. By using bolts threaded into the filter screen and valve, the filter screen is fixed inside the valve. The elastic force of the spring pushes the rubber frame to automatically slide into the filter screen and cover the top of the bolt, thus locking the filter screen and bolt. This ensures the stable installation of the bolt threaded into the filter screen and valve, thereby improving the stability of the filter screen installed inside the valve and ensuring the corrosion resistance of the valve's interior.

[0016] 2. By cooperating with the blocking block and the elastic ball, the resistance to the movement of the limit rod is increased, thereby ensuring that the limit rod is stably locked in the rubber frame. This ensures that the rubber frame stably locks the filter screen and bolts, thus ensuring the stability of the filter screen installed in the valve, ensuring the filter screen's interception effect on impurities in the liquid, and ensuring the corrosion resistance of the valve's interior. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the valve of this utility model;

[0020] Figure 3 This is a schematic diagram of the anti-loosening mechanism of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0022] Figure label:

[0023] 100. Valve; 200. Filter screen; 300. Anti-loosening mechanism; 301. Bolt; 302. Rubber frame; 303. Fixing block; 304. Spring; 305. Limiting rod; 306. Arc block; 307. Covering block; 308. Connecting rope; 309. Elastic ball; 310. Damping sleeve; 311. Sealing ring; 312. Limiting groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0029] The following is combined with Figures 1-4 This invention describes a corrosion-resistant valve suitable for corrosive media.

[0030] In one embodiment, a corrosion-resistant valve suitable for corrosive media includes: a valve 100, with a filter screen 200 slidably connected to the inner wall of the valve 100; an anti-loosening mechanism 300, the anti-loosening mechanism 300 including bolts 301 threadedly connected to both sides of the inner wall of the filter screen 200, the surface of the bolts 301 threadedly connected to the inner wall of the valve 100, a fixing block 303 fixedly connected to the upper surface of the valve 100, a rubber frame 302 slidably connected to the inner wall of the fixing block 303, the surface of the rubber frame 302 slidably connected to the inner wall of the filter screen 200, a spring 304 fixedly connected to the opposite end of the rubber frame 302 and the fixing block 303, a limit rod 305 slidably connected to the inner wall of the fixing block 303, and the surface of the limit rod 305 slidably connected to the inner wall of the rubber frame 302.

[0031] The lower end of the surface of valve 100 is connected to a drain pipe, which is connected to a corresponding pipe by a flange. When backwashing filter screen 200, the inside of the corresponding pipe connected to the drain pipe is opened, and the impurities on filter screen 200 and water flow out of valve 100 through the drain pipe.

[0032] Valve 100, drain pipe, filter screen 200, bolt 301 and spring 304 are all 316 stainless steel components, which have good corrosion resistance, high strength and good durability.

[0033] In this embodiment, when the filter screen 200 needs to be installed, the filter screen 200 to be used is slid into the valve 100. An electric wrench is used to thread the two bolts 301 into the filter screen 200 and the valve 100 respectively. At this time, the limit on the rubber frame 302 is released. The elastic force of the spring 304 pushes the rubber frame 302 to automatically slide into the filter screen 200, so that the bottom of the rubber frame 302 covers the top of the bolt 301. After pushing the limit rod 305 to move to a suitable position in the fixing block 303, the limit rod 305 is rotated so that the end of the limit rod 305 abuts against one side of the fixing block 303, so that the filter screen 200 is stably installed in the valve 100.

[0034] When sewage needs to be transported, valve 100 is connected to the sewage transport pipeline by flange. The valve disc inside valve 100 is rotated to open the inside of valve 100. The sewage transport pipeline transports acidic wastewater containing suspended solids into valve 100. The filter screen 200 intercepts impurities in the liquid, reducing direct contact between particulate impurities and internal parts of valve 100 such as the valve disc, thereby ensuring the corrosion resistance of valve 100.

[0035] like Figure 4 As shown, a blocking block 307 is slidably connected to one side of the inner wall of the fixing block 303, and two elastic balls 309 are fixedly connected to one side of the fixing block 303. The surface of the elastic balls 309 is engaged with the inner wall of the limiting rod 305. A connecting rope 308 is fixedly connected to one side of the blocking block 307, and the other end of the connecting rope 308 is fixedly connected to one side of the fixing block 303. A damping sleeve 310 is fixedly connected to the opposite end of the rubber frame 302 and the fixing block 303. The surface of the spring 304 is located inside the damping sleeve 310. An arc-shaped block 306 is fixedly connected to one side of the fixing block 303. A limiting groove 312 is opened on the inner wall of the fixing block 303, and the surface of the limiting rod 305 is slidably connected to the inner wall of the limiting groove 312.

[0036] In this embodiment, the limiting rod 305 rotates and abuts against the top of the arc-shaped block 306, stops rotating the limiting rod 305, pushes the blocking block 307 into the fixing block 303, and makes the surface of the elastic ball 309 engage with the limiting rod 305.

[0037] like Figure 2 As shown, a sealing ring 311 is fixedly connected to the inner wall of the valve 100, and the surface of the filter screen 200 is slidably connected to the inner wall of the sealing ring 311.

[0038] Rubber frame 302, cover block 307, elastic ball 309, damping sleeve 310 and sealing ring 311 are all EPDM rubber components, which have good flexibility, elasticity, chemical corrosion resistance, high temperature resistance and oil resistance.

[0039] Working principle: Slide the filter screen 200 into the valve 100, so that the inner wall of the sealing ring 311 is tightly attached to the surface of the filter screen 200. Use an electric wrench to thread the two bolts 301 into the filter screen 200 and the valve 100 respectively. At this time, release the limit on the rubber frame 302. The elastic force of the spring 304 pushes the rubber frame 302 to slide into the filter screen 200 automatically, so that the bottom of the rubber frame 302 covers the top of the bolt 301. Push the limit rod 305 to move to a suitable position in the fixing block 303. Rotate the limit rod 305 to abut against the top of the arc block 306. Stop rotating the limit rod 305, so that the end of the limit rod 305 abuts against one side of the fixing block 303. Push the cover block 307 into the fixing block 303, so that the surface of the elastic ball 309 is locked in the limit rod 305, so that the filter screen 200 is stably installed in the valve 100.

[0040] It should be noted that the valve 100, filter screen 200 and bolt 301 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A corrosion-resistant valve suitable for corrosive media, characterized in that, include: A valve (100) having a filter screen (200) slidably connected to its inner wall; An anti-loosening mechanism (300) includes bolts (301) threaded to both sides of the inner wall of the filter screen (200). The surface of the bolts (301) is threaded to the inner wall of the valve (100). A fixing block (303) is fixedly connected to the upper surface of the valve (100). A rubber frame (302) is slidably connected to the inner wall of the fixing block (303). The surface of the rubber frame (302) is slidably connected to the inner wall of the filter screen (200). A spring (304) is fixedly connected to the opposite end of the rubber frame (302) and the fixing block (303). A limit rod (305) is slidably connected to the inner wall of the fixing block (303). The surface of the limit rod (305) is slidably connected to the inner wall of the rubber frame (302).

2. The corrosion-resistant valve suitable for corrosive media according to claim 1, characterized in that, A shielding block (307) is slidably connected to one side of the inner wall of the fixing block (303).

3. The corrosion-resistant valve suitable for corrosive media according to claim 1, characterized in that, Two elastic balls (309) are fixedly connected to one side of the fixing block (303), and the surface of the elastic balls (309) is engaged with the inner wall of the limiting rod (305).

4. The corrosion-resistant valve suitable for corrosive media according to claim 2, characterized in that, A connecting rope (308) is fixedly connected to one side of the shielding block (307), and the other end of the connecting rope (308) is fixedly connected to one side of the fixing block (303).

5. The corrosion-resistant valve suitable for corrosive media according to claim 1, characterized in that, A sealing ring (311) is fixedly connected to the inner wall of the valve (100), and the surface of the filter screen (200) is slidably connected to the inner wall of the sealing ring (311).

6. The corrosion-resistant valve suitable for corrosive media according to claim 1, characterized in that, The rubber frame (302) and the fixed block (303) are fixedly connected to a damping sleeve (310) at their opposite ends, and the surface of the spring (304) is located inside the damping sleeve (310).

7. The corrosion-resistant valve for corrosive media according to claim 1, characterized in that, An arc-shaped block (306) is fixedly connected to one side of the fixing block (303).

8. The corrosion-resistant valve for corrosive media according to claim 1, characterized in that, The inner wall of the fixing block (303) is provided with a limiting groove (312), and the surface of the limiting rod (305) is slidably connected to the inner wall of the limiting groove (312).

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