Flange stainless steel straight-through stop valve with filter screen

Abstract

The utility model relates to the technical field of straight-through stop valves, and discloses a flange stainless steel straight-through stop valve with a filter screen, which comprises a stop valve. According to the flange stainless steel straight-through stop valve provided with the filter screen, through the arrangement of the filter mechanism, when water is introduced into the device, due to the fact that impurities are doped in water, in order to prevent the impurities from entering the stop valve and damaging internal parts, a connecting ring is installed outside a water inlet hole, a coarse filter screen is installed in the connecting ring, and large impurities are filtered out; the filter barrel is installed on the back face of the connecting ring, small impurities are filtered and stopped in the filter barrel, disassembly and cleaning are convenient, the effect of filtering the impurities is achieved, the problem that effective filtering cannot be achieved is avoided, therefore, the impurities of various sizes can be efficiently captured, the number of the impurities entering the valve is reduced, and the service life of the valve is prolonged. The service life of the valve is prolonged, and the maintenance and replacement frequency of the valve is reduced.

Description

Technical Field

[0001] This utility model relates to the field of straight-through shut-off valve technology, and in particular to a flanged stainless steel straight-through shut-off valve with a filter screen. Background Technology

[0002] As a commonly used shut-off device in pipeline systems, the stainless steel flanged straight-through gate valve plays a crucial role in many industrial fields and daily life. In actual use, the media within the pipeline system often contains various impurities, such as sand, rust, and welding slag. These impurities, when entering the stainless steel flanged straight-through gate valve with the flowing media, can cause serious damage to the valve's critical components. Therefore, it is necessary to design a stainless steel flanged straight-through gate valve equipped with a filter screen.

[0003] Most existing gate valves have a simple structure and limited filtration capabilities, failing to effectively filter impurities and causing damage. Therefore, installing a filter structure at the pipe inlet intercepts impurities before they even enter the valve, providing direct and effective protection. This filter structure can be customized according to the valve's diameter and actual operating requirements, offering a large filtration area and suitable filtration precision. It efficiently captures impurities of various sizes, significantly reducing the amount of impurities entering the valve and thus extending its service life and reducing maintenance and replacement frequency. Furthermore, traditional sealing methods in existing gate valves often struggle to cope with complex operating conditions, easily aging and deforming, leading to decreased sealing performance and media leakage. Therefore, installing a transition sealing structure on the outside of the pipe inlet effectively solves the connection and compatibility issues between the valve and pipes of different sizes. It offers multiple adapter interfaces to flexibly adapt to different dimensions, greatly improving the valve's versatility and ease of installation, ensuring the filter screen is always in good working condition, thereby improving the reliability and stability of the entire valve system and reducing installation costs. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this utility model is to provide a flanged stainless steel straight-through gate valve with a filter screen, which solves the problem mentioned in the background art that most existing gate valves have a simple structure, limited filtration, and cannot effectively filter, leading to impurities entering the valve and causing damage. Therefore, by installing a filter structure at the pipe inlet, impurities can be intercepted before they enter the valve, providing the most direct and effective protection for the valve. This filter structure can be customized according to the valve diameter and actual working requirements, with a large filtration area and suitable filtration accuracy, which can efficiently capture impurities of various sizes, greatly reducing the number of impurities entering the valve, thereby significantly extending the valve's service life and reducing the frequency of valve maintenance and replacement. Furthermore, the traditional sealing methods of existing gate valves often cannot cope with complex working conditions, are prone to aging and deformation, leading to decreased sealing performance and media leakage. Therefore, installing a transition sealing structure on the outside of the pipe inlet can effectively solve the connection and compatibility problem between the valve and pipes of different specifications. It has multiple adapter interface forms, which can flexibly adapt to pipelines of different sizes and connection methods, greatly improving the valve's versatility and ease of installation, ensuring that the filter screen is always in good working condition, thereby improving the reliability and stability of the entire valve system and reducing installation costs.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a flanged stainless steel straight-through shut-off valve with a filter screen, comprising a shut-off valve, an inlet hole on the left side of the shut-off valve, a connecting ring threaded to the external side of the inlet hole, a filter mechanism threaded to the middle of the connecting ring, a sealing mechanism threaded to the left side of the connecting ring, the filter mechanism comprising a coarse filter screen threaded to the middle of the connecting ring, a filter bucket fixedly connected to the back of the connecting ring, and the sealing mechanism comprising an adapter pipe threaded to the left side of the connecting ring, with a sealing ring sleeved on the outside of the adapter pipe.

[0008] As a further embodiment of this utility model, the coarse filter screen is provided with threads around its perimeter, and the external threads of the threads are connected to the front end of the water inlet hole. The threads facilitate the installation and connection of the coarse filter screen.

[0009] As a further embodiment of this utility model, a sealing ring is installed on the back of the adapter pipe. The back of the sealing ring is installed on the left side of the connecting ring. The sealing ring serves to seal and prevent leakage at the middle connection.

[0010] As a further embodiment of this utility model, a rubber ring is fitted inside the sealing ring, and a reinforcing plate is welded to the top surface of the sealing ring. The reinforcing plate serves to tighten the installation.

[0011] As a further embodiment of this utility model, the reinforcement has a reinforcement hole inside, and a reinforcement bolt is threaded into the reinforcement hole. The reinforcement bolt serves to tighten the reinforcement plate and secure the connecting pipe.

[0012] As a further embodiment of this utility model, a central column is installed in the middle of the coarse filter screen, and a disassembly rod is fixedly connected to the top surface of the central column. The disassembly rod facilitates the removal, installation, and disassembly of the coarse filter screen.

[0013] As a further embodiment of this utility model, the valve stop valve is threadedly connected to the middle part, and a valve plate is fixedly connected to the bottom surface of the valve plate. The valve plate facilitates opening and closing, allowing water to flow and stop.

[0014] (III) Beneficial Effects

[0015] This utility model provides a flanged stainless steel straight-through stop valve with a filter screen, which has the following advantages:

[0016] 1. This flanged stainless steel straight-through gate valve with a filter screen utilizes a filtration mechanism. When water flows through the device, impurities may be present in the water. To prevent these impurities from entering the gate valve and damaging internal parts, a connecting ring is installed outside the inlet. A coarse filter screen is installed inside the connecting ring to filter out larger impurities, preventing them from entering the gate valve. A filter canister is then installed on the back of the connecting ring to filter out smaller impurities, facilitating disassembly and cleaning. This effectively filters impurities, avoiding ineffective filtration and efficiently capturing impurities of various sizes. This reduces the amount of impurities entering the valve, extends its service life, and lowers the frequency of maintenance and replacement.

[0017] 2. This stainless steel straight-through gate valve with a filter screen features a sealing mechanism. When water is flowing through the device, leakage may occur at the connection point between the gate valve and the external pipeline. Therefore, a sealing ring is installed on the outside of the connecting ring for initial sealing. Then, a transition pipe is installed on the left side of the sealing ring, through which the external pipeline passes. The sealing ring is then fitted onto the outside of the external pipeline and tightened. Tightening the reinforcing bolt brings the reinforcing plates closer together, tightening the sealing ring and indirectly compressing the internal rubber ring to reduce gaps. This achieves a sealing effect at the connection point, preventing leakage and avoiding potential leaks. This design allows for flexible adaptation to different sizes, improving the valve's versatility and ease of installation, ensuring the filter screen is always in good working condition, thereby improving the reliability and stability of the entire valve system and reducing installation costs. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the filter mechanism structure of this utility model;

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

[0021] Figure 4 This is a schematic diagram of the overall disassembled structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the shut-off valve of this utility model.

[0023] In the diagram: 1. Gate valve; 2. Connecting ring; 3. Filtering mechanism; 301. Coarse filter screen; 302. Filter barrel; 4. Sealing mechanism; 401. Adaptor pipe; 402. Sealing ring; 5. Sealing ring; 6. Rubber ring; 7. Reinforcing plate; 8. Reinforcing bolt; 9. Central column; 10. Disassembly rod; 11. Valve bolt; 12. Valve plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figures 1 to 5 This utility model provides a technical solution: a flanged stainless steel straight-through stop valve with a filter screen, including a stop valve 1, a water inlet hole on the left side of the stop valve 1, a connecting ring 2 threaded to the outside of the water inlet hole, a filter mechanism 3 threaded to the middle of the connecting ring 2, a sealing mechanism 4 threaded to the left side of the connecting ring 2, the filter mechanism 3 including a coarse filter screen 301 threaded to the middle of the connecting ring 2, a filter bucket 302 fixedly connected to the back of the connecting ring 2, and the sealing mechanism 4 including a connecting pipe 401 threaded to the left side of the connecting ring 2, with a sealing ring 402 sleeved on the outside of the connecting pipe 401;

[0026] Please see Figure 2 The coarse filter screen 301 has threads around its perimeter. The external threads are connected to the front end of the inlet hole. The threads facilitate the installation and connection of the coarse filter screen 301.

[0027] Please see Figure 1 A sealing ring 5 is installed on the back of the adapter pipe 401. The back of the sealing ring 5 is installed on the left side of the connecting ring 2. The sealing ring 5 serves to seal and prevent leakage at the middle connection.

[0028] Please see Figure 3 A rubber ring 6 is fitted inside the sealing ring 402, and a reinforcing plate 7 is welded to the top surface of the sealing ring 402. The reinforcing plate 7 serves to tighten the installation.

[0029] Please see Figure 3 The reinforcing plate 7 has a reinforcing hole inside, and a reinforcing bolt 8 is threaded inside the reinforcing hole. The reinforcing bolt 8 is used to tighten the reinforcing plate 7 and secure the pipe connection.

[0030] Please see Figure 4 A central column 9 is installed in the middle of the coarse filter screen 301, and a disassembly rod 10 is fixedly connected to the top surface of the central column 9. The disassembly rod 10 facilitates the installation and disassembly of the coarse filter screen 301.

[0031] Please see Figure 5 The valve 1 is threadedly connected to the middle part of the stop valve 1. The bottom surface of the valve 11 is fixedly connected to the valve plate 12. The valve plate 12 is designed to facilitate opening and closing, allowing water to flow out and stop.

[0032] In this invention, the working steps of the device are as follows:

[0033] First step: Since impurities may be mixed in the water, in order to prevent impurities from entering the shut-off valve 1 and damaging the internal parts, a connecting ring 2 is installed on the outside of the water inlet. A coarse filter screen 301 is installed inside the connecting ring 2 to filter out larger impurities and prevent them from entering the shut-off valve 1. Then, a filter canister 302 is installed on the back of the connecting ring 2. The filter canister 302 filters out smaller impurities and prevents them from entering the filter canister 302, making it easy to disassemble and clean.

[0034] The second step: Since leakage may occur at the connection point when the shut-off valve 1 is connected to the external pipeline, a sealing ring 5 is installed on the outside of the connecting ring 2 for initial sealing. Then, an adapter pipe 401 is installed on the outside of the left side of the sealing ring 5, and the external pipeline passes through the outside of the adapter on the left side of the adapter pipe 401. Next, the sealing ring 402 is fitted onto the outside of the external pipeline. After tightening, the reinforcing bolt 8 is tightened, so that the reinforcing pieces 7 are brought closer together, causing the sealing ring 402 to tighten, indirectly squeezing the internal rubber ring 6 to reduce the gap. It should be noted that the device structure and drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0035] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flanged stainless steel straight-through stop valve with a filter screen, comprising a stop valve (1), characterized in that: The shut-off valve (1) has a water inlet hole on its left side. A connecting ring (2) is threaded to the outside of the water inlet hole. A filter mechanism (3) is threaded to the middle of the connecting ring (2). A sealing mechanism (4) is threaded to the left side of the connecting ring (2). The filtration mechanism (3) includes a coarse filter screen (301) threaded to the middle of the connecting ring (2), and a filter barrel (302) is fixedly connected to the back of the connecting ring (2). The sealing mechanism (4) includes a connecting pipe (401) threaded to the outside of the left side of the connecting ring (2), and a sealing ring (402) is sleeved on the outside of the connecting pipe (401).

2. A flanged stainless steel straight-through shut-off valve with a filter screen as described in claim 1, characterized in that: The coarse filter screen (301) is provided with threads around its perimeter, and the external threads of the threads are connected to the front end of the inlet hole.

3. A flanged stainless steel straight-through shut-off valve with a filter screen as described in claim 1, characterized in that: A sealing ring (5) is installed on the back of the adapter pipe (401), and the back of the sealing ring (5) is installed on the left side of the connecting ring (2).

4. A flanged stainless steel straight-through shut-off valve with a filter screen as described in claim 1, characterized in that: A rubber ring (6) is fitted inside the sealing ring (402), and a reinforcing plate (7) is welded to the top surface of the sealing ring (402).

5. A flanged stainless steel straight-through shut-off valve with a filter screen as described in claim 4, characterized in that: The reinforcing plate (7) has a reinforcing hole inside, and a reinforcing bolt (8) is threaded into the reinforcing hole.

6. A flanged stainless steel straight-through shut-off valve with a filter screen according to claim 1, characterized in that: A central column (9) is installed in the middle of the coarse filter screen (301), and a disassembly rod (10) is fixedly connected to the top surface of the central column (9).

7. A flanged stainless steel straight-through shut-off valve with a filter screen as described in claim 1, characterized in that: The valve plug (11) is threadedly connected to the middle part of the shut-off valve (1), and a valve plate (12) is fixedly connected to the bottom surface of the valve plug (11).

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