Valve with connector sealing structure

Abstract

The valve with the connector sealing structure comprises a valve body and connecting pipes arranged at the two ends of the valve body, the two ends of the valve body are fixedly connected with first flange plates, and the ends, close to the valve body, of the two connecting pipes are fixedly connected with second flange plates. The first flange plate and the second flange plate are arranged in a matched mode. A first caulking groove and a second caulking groove are formed in the adjacent sides of the first flange plate and the second flange plate correspondingly, and a first sealing ring and a second sealing ring are connected into the first caulking groove and the second caulking groove in an embedded mode correspondingly. The flange plates are connected through the bolts and the nuts which are arranged on the inner layer and the outer layer, the connecting effect between the flange plates can be effectively improved, the sealing ring with the extending sealing strip is concentrically arranged between the bolts on the inner layer and the threads on the outer layer, and the sealing effect between the flange plates can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a valve with an interface sealing structure. Background Technology

[0002] Valves are control components in fluid transport systems, possessing functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, and pressure relief. Valves used in fluid control systems range from the simplest shut-off valves to the various valves used in highly complex automated control systems, with a wide variety of types and specifications. Valves can be used to control the flow of various types of fluids, including air, water, steam, various corrosive media, slurry, oil, liquid metals, and radioactive media. During operation, valves require a connecting pipe to be installed at their end via a flange for media transport. However, currently, the flange connection between valves and connecting pipes is mostly achieved by direct bolting, with adjacent flanges sealed by a sealing ring. However, current sealing rings have a simple structure, limited sealing effectiveness, and lack reinforcement. When the bolts loosen, media leakage can occur. Utility Model Content

[0003] The purpose of this invention is to provide a valve with an interface sealing structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a valve with an interface sealing structure, comprising a valve body and connecting pipes disposed at both ends of the valve body, wherein a first flange is fixedly connected to both ends of the valve body, and a second flange is fixedly connected to one end of each of the two connecting pipes near the valve body, wherein the first flange and the second flange are adapted to each other.

[0005] The first flange and the second flange are respectively provided with a first groove and a second groove on their adjacent sides. A first sealing ring and a second sealing ring are respectively embedded in the first groove and the second groove. The first sealing ring and the second sealing ring are adapted to each other. A second extended sealing strip is provided at one end of the first sealing ring that extends out of the first groove. A first extended sealing strip is provided at one end of the second sealing ring that extends out of the second groove. A first sealing groove adapted to the first extended sealing strip is provided on the first sealing ring. A second sealing groove adapted to the second extended sealing strip is provided on the second sealing ring.

[0006] Preferably, a plurality of first bolts are inserted at equal intervals on the outer wall of the first flange on the side away from the second flange, and the first bolts pass through the first flange and the second flange in sequence and are threaded with first nuts.

[0007] Preferably, a plurality of second bolts are inserted at equal intervals on the outer wall of the second flange on the side away from the first flange. The second bolts pass through the second flange and the first flange in sequence and are threaded with second nuts.

[0008] Preferably, both the end of the first extended sealing strip away from the second sealing ring and the end of the second extended sealing strip away from the first sealing ring are provided with sealing lips, and the inner walls of the first sealing groove and the second sealing groove are provided with matching grooves corresponding to the sealing lips.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: The valve with an interface sealing structure of this utility model has a simple structure and is easy to use. It is connected to the second flange on the connecting pipe by the first flange set at both ends of the valve body. The connection is made by setting two layers of bolts and nuts, which can effectively improve the connection effect between the flanges. The sealing ring with an extended sealing strip is set in the center between the inner bolt and the outer thread, which can effectively improve the sealing effect between the flanges. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a partial cross-sectional view of the present invention;

[0012] Figure 3 This is a schematic diagram of the structure of the first sealing ring in this utility model;

[0013] Figure 4 This is a schematic diagram of the structure of the second sealing ring in this utility model;

[0014] Figure 5 This is a cross-sectional view of the sealing ring in this utility model.

[0015] In the diagram: 1. Valve body; 2. Connecting pipe; 3. First flange; 4. Second flange; 5. First bolt; 6. First nut; 7. Second bolt; 8. Second nut; 9. First groove; 10. Second groove; 11. First sealing ring; 12. Second sealing ring; 13. First extended sealing strip; 14. Second extended sealing strip; 15. First sealing groove; 16. Second sealing groove; 17. Sealing lip. Detailed Implementation

[0016] 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, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5 This utility model provides a technical solution: a valve with an interface sealing structure, including a valve body 1 and connecting pipes 2 disposed at both ends of the valve body 1. Both ends of the valve body 1 are fixedly connected to a first flange 3, and the ends of the two connecting pipes 2 near the valve body 1 are fixedly connected to a second flange 4. The first flange 3 and the second flange 4 are adapted to each other.

[0018] A first groove 9 and a second groove 10 are respectively provided on the adjacent side of the first flange 3 and the second flange 4. A first sealing ring 11 and a second sealing ring 12 are respectively embedded in the first groove 9 and the second groove 10. The first sealing ring 11 and the second sealing ring 12 are adapted to each other. A second extended sealing strip 14 is provided at one end of the first sealing ring 11 extending out of the first groove 9. A first extended sealing strip 13 is provided at one end of the second sealing ring 12 extending out of the second groove 10. A first sealing groove 15 corresponding to the first extended sealing strip 13 is provided on the first sealing ring 11. A second sealing groove 16 corresponding to the second extended sealing strip 14 is provided on the second sealing ring 12.

[0019] Several first bolts 5 are inserted at equal intervals on the outer wall of the first flange 3 on the side away from the second flange 4. The first bolts 5 pass through the first flange 3 and the second flange 4 in sequence and are threaded with first nuts 6.

[0020] Several second bolts 7 are inserted at equal intervals on the outer wall of the second flange 4 on the side away from the first flange 3. The second bolts 7 pass through the second flange 4 and the first flange 3 in sequence and are threaded with second nuts 8.

[0021] Both the end of the first extended sealing strip 13 away from the second sealing ring 12 and the end of the second extended sealing strip 14 away from the first sealing ring 11 are provided with sealing lips 17, and the inner walls of the first sealing groove 15 and the second sealing groove 16 are provided with matching grooves corresponding to the sealing lips 17. The setting of sealing lips and grooves can effectively increase the contact area between the extended sealing strip and the sealing groove, thereby improving the sealing effect.

[0022] Specifically, the valve body 1 can be a valve as required. In use, the connecting pipes 2 set at both ends of the valve body 1 are aligned and connected through the first flange 3 and the second flange 4. The second extended sealing strip 14 on the first sealing ring 11 embedded in the first groove 9 on the first flange 3 is aligned with the first extended sealing strip 13 on the second sealing ring 12 embedded in the second groove 10 on the second flange 4, and the sealing strip is inserted into the inside of the sealing groove. The setting of the sealing lip 17 can increase the number of sealing rings between the sealing strips and improve the sealing effect. Then, the first bolt 5 passes through the first flange 3 and the second flange 4 in sequence and is tightened by the first nut 6, and the second bolt 7 passes through the second flange 4 and the first flange 3 in sequence and is tightened by the second nut 8. The first bolt 5 and the second bolt 7 are respectively set on the inner and outer sides of the sealing ring. The connection method of the inner and outer double-layer bolts and nuts can effectively improve the connection effect between the flanges.

[0023] 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 valve with an interface sealing structure, characterized in that, It includes a valve body (1) and connecting pipes (2) disposed at both ends of the valve body (1). Both ends of the valve body (1) are fixedly connected to a first flange (3), and the two connecting pipes (2) are fixedly connected to a second flange (4) at the end near the valve body (1). The first flange (3) and the second flange (4) are adapted to each other. The first flange (3) and the second flange (4) are respectively provided with a first groove (9) and a second groove (10) on their adjacent sides. The first groove (9) and the second groove (10) are respectively fitted with a first sealing ring (11) and a second sealing ring (12). The first sealing ring (11) and the second sealing ring (12) are adapted to each other. The first sealing ring (11) is provided with a second extended sealing strip (14) at one end extending out of the first groove (9). The second sealing ring (12) is provided with a first extended sealing strip (13) at one end extending out of the second groove (10). The first sealing ring (11) is provided with a first sealing groove (15) corresponding to the first extended sealing strip (13). The second sealing ring (12) is provided with a second sealing groove (16) corresponding to the second extended sealing strip (14).

2. A valve with an interface sealing structure according to claim 1, characterized in that: On the outer wall of the first flange (3) away from the second flange (4), a number of first bolts (5) are inserted at equal intervals. The first bolts (5) pass through the first flange (3) and the second flange (4) in sequence and are threaded with first nuts (6).

3. A valve with an interface sealing structure according to claim 1, characterized in that: On the outer wall of the second flange (4) away from the first flange (3), a number of second bolts (7) are inserted at equal intervals. The second bolts (7) pass through the second flange (4) and the first flange (3) in sequence and are threaded with second nuts (8).

4. A valve with an interface sealing structure according to claim 1, characterized in that: The first extended sealing strip (13) is provided with a sealing lip (17) at one end away from the second sealing ring (12) and the second extended sealing strip (14) is provided with a sealing lip (11) at one end away from the first sealing ring (11). The inner walls of the first sealing groove (15) and the second sealing groove (16) are provided with grooves that match the sealing lip (17).

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