Butterfly valve with high sealing performance

Abstract

The utility model relates to the technical field of butterfly valves, and discloses a butterfly valve with high sealing performance, which comprises a butterfly valve main body, sealing mechanisms are arranged at two ends of the butterfly valve main body, and a reinforcing mechanism is arranged at one end of each sealing mechanism. According to the butterfly valve with the high sealing performance, the first flange, the positioning block, the first sealing groove, the first sealing ring, the butt joint pipeline, the second flange, the positioning groove, the second sealing groove, the second sealing ring, the third sealing groove, the third sealing ring, the fourth sealing groove and the fourth sealing ring are arranged; the first flange and the second flange are fixed together through the first bolt and the first nut, and at the moment, a fourth sealing ring bonded to the surface of one side of the first sealing ring is clamped into a fourth sealing groove formed in the surface of one side of the second sealing ring. And a third sealing ring adhered to the surface of one side of the second sealing ring is clamped into a third sealing groove formed in the surface of one side of the first sealing ring. In this way, the sealing performance and the connecting stability of the butterfly valve are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to butterfly valve technical field especially relates to a butterfly valve with high sealing performance. BACKGROUND

[0002] Butterfly valve is a simple structure regulating valve, mainly through the disc-shaped butterfly plate rotates in the valve body to open, close or regulate medium flow, butterfly valve has simple structure, small volume, light weight, material consumption is saved, installation size is small, driving torque is small, and it is simple and rapid to operate, butterfly valve is widely used in controlling air, water, steam, various corrosive media, slurry, oil, liquid metal and radioactive medium and various types fluid flow, with the continuous progress of industrial technology, the use range of butterfly valve is also expanding, therefore, particularly need a kind of butterfly valve with high sealing performance.

[0003] But the existing butterfly valve with high sealing performance, most of the butterfly valve when connecting with other connecting pipelines, the sealing property of connecting portion is relatively poor, liquid or gas leakage may be caused, and there is security risk. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problem, the purpose of the utility model is to provide a kind of butterfly valve with high sealing performance, to solve the technical problem that the existing butterfly valve with high sealing performance in the background art proposed, most of the butterfly valve when connecting with other connecting pipelines, the sealing property of connecting portion is relatively poor, liquid or gas leakage may be caused, and there is security risk.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of butterfly valve with high sealing performance, including butterfly valve main body, the both ends of the butterfly valve main body are provided with sealing mechanism, one end of the sealing mechanism is provided with reinforcing mechanism;

[0007] The sealing mechanism comprises a first flange, a positioning block, a first sealing groove, a first sealing ring, a butt joint pipeline, a second flange, a positioning groove, a second sealing groove, a second sealing ring, a third sealing groove, a third sealing ring, a fourth sealing groove, a fourth sealing ring, a first bolt and a first nut, the two ends of the butterfly valve body are fixedly provided with the first flange, one side surface of the first flange is fixedly provided with the positioning block, one side surface of the first flange is provided with the first sealing groove, the inner wall of the first sealing groove is bonded with the first sealing ring, one end of the butterfly valve body is connected with the butt joint pipeline, one end of the butt joint pipeline is fixedly provided with the second flange, one side surface of the second flange is provided with the positioning groove, one side surface of the second flange is provided with the second sealing groove, the inner wall of the second sealing groove is bonded with the second sealing ring, one side surface of the first sealing ring is provided with the third sealing groove, one side surface of the second sealing ring is bonded with the third sealing ring, one side surface of the second sealing ring is provided with the fourth sealing groove, one side surface of the first sealing ring is bonded with the fourth sealing ring, one end of the first flange is provided with the first bolt, and one end of the first bolt is threadedly connected with the first nut.

[0008] Preferably, one end of the first flange is provided with the first bolt, and one end of the first bolt is threadedly connected with the first nut.

[0009] Preferably, the size of the first sealing ring is consistent with the size of the first sealing groove, and the size of the second sealing ring is consistent with the size of the second sealing groove.

[0010] Preferably, the size of the third sealing ring is consistent with the size of the third sealing groove, and the size of the fourth sealing ring is consistent with the size of the fourth sealing groove.

[0011] Preferably, the size of the positioning block is consistent with the size of the positioning groove.

[0012] Preferably, the reinforcing mechanism comprises a rubber ring, a first reinforcing plate, a sliding groove, a connecting groove, a sliding block, a screw rod, a second nut, a moving block, a second reinforcing plate, a second bolt and a third nut, the outer wall of the first flange is connected with the rubber ring, one side surface of the rubber ring is connected with the first reinforcing plate, the inner wall of the first reinforcing plate is provided with the sliding groove, one side surface of the first reinforcing plate is provided with the connecting groove, the inside of the sliding groove is provided with the sliding block, one side surface of the sliding block is welded with the screw rod, one end of the screw rod is threadedly connected with the second nut, one side surface of the sliding block is fixedly connected with the moving block, one end of the first reinforcing plate is connected with the second reinforcing plate, the two ends of the first reinforcing plate are provided with the second bolt, and one end of the second bolt is threadedly connected with the third nut.

[0013] Preferably, the sliding block and the first reinforcing plate form a sliding structure through the sliding groove, and the inner walls of the first reinforcing plate and the second reinforcing plate are both provided with the sliding groove.

[0014] Preferably, one end of the screw rod is screwed into the second nut through the connecting slot.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] (1) By the cooperation of the multiple sealing structure and the positioning block and the positioning groove, the utility model significantly improves the sealing performance between the butterfly valve and the connecting pipeline, effectively preventing the leakage of liquid or gas.

[0017] (2) The use of the reinforcing mechanism not only provides additional sealing effect, but also enhances the connection stability between the butterfly valve and the connecting pipeline through its stable structure, improving the safety and reliability of the entire system.

[0018] (3) The adjustable reinforcing mechanism design makes the utility model applicable to butterfly valves and connecting pipelines of different diameters, improving its versatility and applicability, and reducing production and maintenance costs. BRIEF DESCRIPTION OF DRAWINGS

[0019] One or more embodiments are illustrated by way of example in the accompanying drawings that are not intended to be limiting of the embodiments. Like reference numbers in the drawings indicate like elements unless otherwise specified. The drawings in which:

[0020] Figure 1 is a side view of the appearance structure of the utility model;

[0021] Figure 2 is a structure diagram of the cooperation between the first flange and the positioning block of the utility model;

[0022] Figure 3 is a structure diagram of the cooperation between the second flange and the positioning groove of the utility model;

[0023] Figure 4 is a structure diagram of the cooperation between the rubber ring and the first reinforcing plate of the utility model;

[0024] Figure 5 is a structure diagram of the cooperation between the sliding block and the moving block of the utility model.

[0025] In the figure: 1, butterfly valve main body; 2, sealing mechanism; 201, first flange; 202, positioning block; 203, first sealing groove; 204, first sealing ring; 205, butt joint pipeline; 206, second flange; 207, positioning groove; 208, second sealing groove; 209, second sealing ring; 210, third sealing groove; 211, third sealing ring; 212, fourth sealing groove; 213, fourth sealing ring; 214, first bolt; 215, first nut; 3, reinforcing mechanism; 301, rubber ring; 302, first reinforcing plate; 303, sliding groove; 304, connecting groove; 305, sliding block; 306, screw rod; 307, second nut; 308, moving block; 309, second reinforcing plate; 310, second bolt; 311, third nut. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear, the various embodiments of the utility model will be described in detail below in combination with the drawings. However, those skilled in the art can understand that in the various embodiments of the utility model, many technical details are proposed in order to make the reader better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in each claim of the present application can be realized.

[0027] EMBODIMENT

[0028] Please refer to Figures 1-5 The utility model provides a butterfly valve that high sealing performance, including butterfly valve main body 1, the both ends of butterfly valve main body 1 are provided with sealing mechanism 2, and one end of sealing mechanism 2 is provided with reinforcing mechanism 3;

[0029] The sealing mechanism 2 comprises a first flange 201, a positioning block 202, a first sealing groove 203, a first sealing ring 204, a butt joint pipeline 205, a second flange 206, a positioning groove 207, a second sealing groove 208, a second sealing ring 209, a third sealing groove 210, a third sealing ring 211, a fourth sealing groove 212, a fourth sealing ring 213, a first bolt 214 and a first nut 215, the both ends of the butterfly valve body 1 are fixedly installed with the first flange 201, one side surface of the first flange 201 is fixedly installed with the positioning block 202, one side surface of the first flange 201 is provided with the first sealing groove 203, the inner wall of the first sealing groove 203 is bonded with the first sealing ring 204, one end of the butterfly valve body 1 is connected with the butt joint pipeline 205, one end of the butt joint pipeline 205 is fixedly installed with the second flange 206, one side surface of the second flange 206 is provided with the positioning groove 207, one side surface of the second flange 206 is provided with the second sealing groove 208, the inner wall of the second sealing groove 208 is bonded with the second sealing ring 209, one side surface of the first sealing ring 204 is provided with the third sealing groove 210, one side surface of the second sealing ring 209 is bonded with the third sealing ring 211, one side surface of the second sealing ring 209 is provided with the fourth sealing groove 212, one side surface of the first sealing ring 204 is bonded with the fourth sealing ring 213, one end of the first flange 201 is provided with the first bolt 214, one end of the first bolt 214 is threadedly connected with the first nut 215, through the setting of the first flange 201, the positioning block 202, the first sealing groove 203, the first sealing ring 204, the butt joint pipeline 205, the second flange 206, the positioning groove 207, the second sealing groove 208, the second sealing ring 209, the third sealing groove 210, the third sealing ring 211, the fourth sealing groove 212, the fourth sealing ring 213, the first bolt 214 and the first nut 215, when the butterfly valve body 1 and the butt joint pipeline 205 are connected, the first flange 201 and the second flange 206 are fixedly connected together by the first bolt 214 and the first nut 215, the cooperation between the positioning block 202 and the positioning groove 207 can make the connection between the first flange 201 and the second flange 206 more rapid and accurate, when the first flange 201 and the second flange 206 are connected together, the fourth sealing ring 213 bonded on one side surface of the first sealing ring 204 will be clamped into the fourth sealing groove 212 provided on one side surface of the second sealing ring 209, and the third sealing ring 211 bonded on one side surface of the second sealing ring 209 will be clamped into the third sealing groove 210 provided on one side surface of the first sealing ring 204, the sealing property of the connection place is very good, and the safety of the butterfly valve body 1 in working is higher.

[0030] In the above embodiment, the butterfly valve with high sealing performance is formed by setting the first sealing ring and the second sealing ring on the connecting surface of the first flange and the second flange, and setting the third sealing groove and the fourth sealing groove matched with each other on the sealing rings, and cooperating the third sealing ring and the fourth sealing ring, thereby forming a multiple sealing structure. This design not only increases the number of sealing layers, but also effectively prevents the leakage of liquid or gas through the close cooperation of the sealing ring and the sealing groove, thereby greatly improving the sealing performance. The positioning block on the first flange cooperates with the positioning groove on the second flange to ensure the accurate positioning of the first flange and the second flange when connected. This not only simplifies the installation process, but also improves the accuracy and stability of the connection, further enhancing the sealing effect. Therefore, through the cooperation of the multiple sealing structure and the positioning block and the positioning groove, the sealing performance between the butterfly valve and the connected pipeline is significantly improved, and the leakage of liquid or gas is effectively prevented.

[0031] Further, one end of the first flange 201 is provided with a first bolt 214, one end of the first bolt 214 is threadedly connected with a first nut 215, and the first bolt 214 and the first nut 215 are cooperated to quickly fix the first flange 201 and the second flange 206 together through the setting of the first bolt 214 and the first nut 215.

[0032] Further, the size of the first sealing ring 204 is consistent with the size of the first sealing groove 203, and the size of the second sealing ring 209 is consistent with the size of the second sealing groove 208. Through the setting of the first sealing ring 204 and the second sealing ring 209, the cooperation between the first sealing ring 204 and the second sealing ring 209 can improve the sealing property between the first flange 201 and the second flange 206.

[0033] Further, the size of the third sealing ring 211 is consistent with the size of the third sealing groove 210, and the size of the fourth sealing ring 213 is consistent with the size of the fourth sealing groove 212. Through the setting of the third sealing groove 210 and the third sealing ring 211, when the third sealing ring 211 is clamped into the third sealing groove 210, the sealing property between the first flange 201 and the second flange 206 can be improved.

[0034] Further, the size of the positioning block 202 is consistent with the size of the positioning groove 207. Through the setting of the positioning block 202 and the positioning groove 207, the cooperation between the positioning block 202 and the positioning groove 207 makes the installation between the first flange 201 and the second flange 206 more rapid and accurate.

[0035] Further, the reinforcing mechanism 3 comprises a rubber ring 301, a first reinforcing plate 302, a sliding groove 303, a connecting groove 304, a sliding block 305, a screw rod 306, a second nut 307, a moving block 308, a second reinforcing plate 309, a second bolt 310 and a third nut 311, the outer wall of the first flange 201 is connected with the rubber ring 301, one side surface of the rubber ring 301 is connected with the first reinforcing plate 302, the inner wall of the first reinforcing plate 302 is provided with the sliding groove 303, one side surface of the first reinforcing plate 302 is provided with the connecting groove 304, the inner part of the sliding groove 303 is provided with the sliding block 305, one side surface of the sliding block 305 is welded with the screw rod 306, one end of the screw rod 306 is screwed with the second nut 307, one side surface of the sliding block 305 is fixedly connected with the moving block 308, one end of the first reinforcing plate 302 is connected with the second reinforcing plate 309, both ends of the first reinforcing plate 302 are provided with the second bolt 310, one end of the second bolt 310 is screwed with the third nut 311, through the arrangement of the rubber ring 301, the first reinforcing plate 302, the sliding groove 303, the connecting groove 304, the sliding block 305, the screw rod 306, the second nut 307, the moving block 308, the second reinforcing plate 309, the second bolt 310 and the third nut 311, when the first flange 201 and the second flange 206 are fixedly connected together, the first reinforcing plate 302 and the second reinforcing plate 309 are placed on the outer walls of the first flange 201 and the second flange 206, and then the first reinforcing plate 302 and the second reinforcing plate 309 are fixedly connected together by the second bolt 310 and the third nut 311, so that the first reinforcing plate 302 and the second reinforcing plate 309 can reinforce the connection part of the first flange 201 and the second flange 206, further improving the sealing performance, and secondly, when the butterfly valve body 1 and the butt joint pipeline 205 with different diameters need to be reinforced, the second nut 307 can be loosened, the sliding block 305 can slide in the sliding groove 303, so as to drive the moving block 308 to move, so that the butterfly valve body 1 and the butt joint pipeline 205 with different diameters can be reinforced.

[0036] Further, the sliding block 305 and the first reinforcing plate 302 constitute a sliding structure through the sliding groove 303, the inner walls of the first reinforcing plate 302 and the second reinforcing plate 309 are provided with the sliding groove 303, through the arrangement of the sliding groove 303 and the sliding block 305, when the sliding block 305 slides in the sliding groove 303, the moving block 308 can be driven to move.

[0037] Further, one end of the screw rod 306 penetrates through the connecting groove 304 and is screwed with the second nut 307, through the arrangement of the screw rod 306 and the second nut 307, the screw rod 306 and the second nut 307 can fix the position of the moving block 308.

[0038] In the above embodiment, the reinforcing mechanism includes first reinforcing plates, second reinforcing plates, sliding blocks, screw rods and the like. These components are connected to each other through sliding grooves and connecting grooves and the like, and can be adjusted in position to adapt to butterfly valves and connecting pipelines of different diameters. The use of the reinforcing mechanism not only enhances the stability of the connection, but also provides additional sealing effect through the use of elastic materials such as rubber rings. The sliding blocks and screw rods in the reinforcing mechanism are designed so that the entire reinforcing mechanism can be adjusted in size as needed to adapt to butterfly valves and connecting pipelines of different diameters. This adjustability improves the versatility and applicability of the utility model.

[0039] Working principle: when the butterfly valve body 1 and the connecting pipeline 205 are connected, the first flange 201 and the second flange 206 are fixedly connected together by the first bolt 214 and the first nut 215, and the cooperation between the positioning block 202 and the positioning groove 207 can make the connection between the first flange 201 and the second flange 206 more rapid and accurate. When the first flange 201 and the second flange 206 are connected together, the fourth sealing ring 213 bonded on one side surface of the first sealing ring 204 will be clamped into the fourth sealing groove 212 opened on one side surface of the second sealing ring 209, and the third sealing ring 211 bonded on one side surface of the second sealing ring 209 will be clamped into the third sealing groove 210 opened on one side surface of the first sealing ring 204, so that the sealing performance of the connection is very good, and the safety of the butterfly valve body 1 is higher. When the first flange 201 and the second flange 206 are fixedly connected together, the first reinforcing plate 302 and the second reinforcing plate 309 are placed on the outer walls of the first flange 201 and the second flange 206, and then the first reinforcing plate 302 and the second reinforcing plate 309 are fixedly connected together by the second bolt 310 and the third nut 311. The first reinforcing plate 302 and the second reinforcing plate 309 can reinforce the connection between the first flange 201 and the second flange 206, further improving the sealing performance. In addition, when the butterfly valve body 1 and the connecting pipeline 205 of different diameters need to be reinforced, the second nut 307 can be loosened, the sliding block 305 can slide in the sliding groove 303, and the moving block 308 can be moved, so that the butterfly valve body 1 and the connecting pipeline 205 of different diameters can be reinforced.

[0040] Those skilled in the art can understand that the above embodiments are specific embodiments for implementing the utility model, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the utility model.

Claims

1. A butterfly valve with high sealing performance, comprising a butterfly valve body (1), characterized in that: Sealing mechanisms (2) are provided at both ends of the butterfly valve body (1), and a reinforcing mechanism (3) is provided at one end of the sealing mechanism (2); The sealing mechanism (2) comprises a first flange (201), a positioning block (202), a first sealing groove (203), a first sealing ring (204), a docking pipe (205), a second flange (206), a positioning groove (207), a second sealing groove (208), a second sealing ring (209), a third sealing groove (210), a third sealing ring (211), a fourth sealing groove (212), a fourth sealing ring (213), a first bolt (214) and a first nut (215). The first flanges (201) are fixedly mounted on both ends of the butterfly valve body (1), a positioning block (202) is fixedly mounted on one side surface of the first flange (201), a first sealing groove (203) is opened on one side surface of the first flange (201), and a first nut (215) is bonded to the inner wall of the first sealing groove (203). A sealing ring (204), one end of the butterfly valve body (1) is connected to a docking pipe (205), one end of the docking pipe (205) is fixedly installed with a second flange (206), one side surface of the second flange (206) is provided with a positioning groove (207), one side surface of the second flange (206) is provided with a second sealing groove (208), the inner wall of the second sealing groove (208) is bonded with a second sealing ring (209), one side surface of the first sealing ring (204) is provided with a third sealing groove (210), one side surface of the second sealing ring (209) is bonded with a third sealing ring (211), one side surface of the second sealing ring (209) is provided with a fourth sealing groove (212), and one side surface of the first sealing ring (204) is bonded with a fourth sealing ring (213).

2. A butterfly valve with high sealing performance according to claim 1, characterized in that: A first bolt (214) is provided at one end of the first flange (201), and a first nut (215) is threadedly connected to one end of the first bolt (214).

3. A butterfly valve with high sealing performance according to claim 1, characterized in that: The size of the first sealing ring (204) matches the size of the first sealing groove (203), and the size of the second sealing ring (209) matches the size of the second sealing groove (208).

4. A butterfly valve with high sealing performance according to claim 1, characterized in that: The third sealing ring (211) matches the size of the third sealing groove (210), and the fourth sealing ring (213) matches the size of the fourth sealing groove (212).

5. A butterfly valve with high sealing performance according to claim 1, characterized in that: The size of the positioning block (202) matches that of the positioning groove (207).

6. A butterfly valve with high sealing performance according to claim 1, characterized in that: The reinforcing mechanism (3) comprises a rubber ring (301), a first reinforcing plate (302), a sliding groove (303), a connecting groove (304), a slider (305), a screw (306), a second nut (307), a moving block (308), a second reinforcing plate (309), a second bolt (310) and a third nut (311), wherein the outer wall of the first flange (201) is connected to the rubber ring (301), a side surface of the rubber ring (301) is connected to the first reinforcing plate (302), the inner wall of the first reinforcing plate (302) is provided with a sliding groove (303), and the first reinforcing plate (302) is provided with a connecting groove (303). ) is provided with a connecting groove (304) on one side surface, a slider (305) is provided inside the sliding groove (303), a screw (306) is welded to one side surface of the slider (305), one end of the screw (306) is threadedly connected to a second nut (307), one side surface of the slider (305) is fixedly connected to a moving block (308), one end of the first reinforcing plate (302) is connected to a second reinforcing plate (309), two ends of the first reinforcing plate (302) are provided with second bolts (310), and one end of the second bolt (310) is threadedly connected to a third nut (311).

7. A butterfly valve with high sealing performance according to claim 5, characterized in that: The slider (305) forms a sliding structure with the first reinforcing plate (302) through a sliding groove (303), and the inner walls of the first reinforcing plate (302) and the second reinforcing plate (309) are both provided with sliding grooves (303).

8. The butterfly valve with high sealing performance according to claim 5, characterized in that: One end of the screw rod (306) passes through the connecting groove (304) and is threadedly connected to the second nut (307).

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