A leak-proof gas pipeline valve

Abstract

The present invention relates to the field of valve technology, specifically to a leak-proof gas pipeline valve, comprising: a valve body, including a valve housing, a control rod is provided on the surface of the valve housing, a connecting ring is sleeved on the outer surface of the valve housing, and an operating cylinder is fixedly connected on both sides of the valve housing; a sealing mechanism, including an airbag, the airbag is connected to the surface of the operating cylinder, a sealing ring is sleeved on the outer surface of the operating cylinder, an operating groove is provided in the middle of the operating cylinder, and a conduit is provided on the inner side of the operating groove. The present invention realizes the transportation of gas in the sealing ring through the connection of the conduit and the airbag, and the connection of the conduit and the sealing ring, and achieves an abutting connection between the sealing ring and the pipeline to achieve its sealing effect, and under the connection of the plug and the sealing ring, through the connection of the spring and the plug, and under the abutting connection of the slot and the spring, the connection and fixation of the sealing ring on the operating cylinder is realized, and the disassembly and replacement of the sealing ring is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, and in particular to a leak-proof gas pipeline valve. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters 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, and overflow pressure relief.

[0003] With the rapid development of science and technology, the continuous improvement of production processes and product structures, the types and quality of valves are also changing. Valves are particularly widely used in pipeline gas transmission. However, when using existing valves, the connection between the valve and the pipeline is sealed by bolts and gaskets. Long-term use can easily cause wear of the gaskets, resulting in leakage in the connection, affecting its use effect. In addition, the connection support of the pipeline on the valve is only achieved by bolts, and there is no supporting mechanism inside. Under long-term connection use, the force at the connection between the pipeline and the valve is relatively large, which can easily cause the surface of the pipeline at the valve connection to rupture. Therefore, it is urgent to design a leak-proof gas pipeline valve to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a leak-proof gas pipeline valve to solve the problem raised in the above-mentioned background technology that long-term use may easily cause wear of the sealing gasket, resulting in leakage in the connection, affecting its use effect, and the connection support of the pipeline on the valve is only achieved by bolts, and there is no supporting mechanism inside it. After long-term connection and use, it is easy to cause the surface of the pipeline at the valve connection to rupture.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a leak-proof gas pipeline valve, comprising:

[0006] The valve body comprises a valve housing, a control rod is provided on the surface of the valve housing, a connecting ring is sleeved on the outer surface of the valve housing, and an operating cylinder is fixedly connected to both sides of the valve housing;

[0007] The sealing mechanism includes an airbag, which is connected to the surface of the operating cylinder. A sealing ring is sleeved on the outer surface of the operating cylinder. An operating groove is provided in the middle of the operating cylinder. A catheter is provided on the inner side of the operating groove. Both ends of the catheter are plugged and connected to the surfaces of the airbag and the sealing ring. An insert is fixedly connected to the side of the sealing ring close to the operating cylinder. A spring is fixedly connected to the surface of the insert. A slot is provided on the surface of the operating cylinder. The spring and the slot are abutted and connected.

[0008] Preferably, the airbags are connected to the surface of the operating cylinder in four groups, the surface of the operating cylinder is provided with grooves, and the airbags are connected to the operating cylinder through the grooves.

[0009] Preferably, the sealing ring is in an annular shape and is connected to the outer surface of the action cylinder. The sealing ring is made of rubber, and the interior of the sealing ring is hollow. The catheter is plug-connected to the airbag through the action groove.

[0010] Preferably, the conduit passes through the action groove and is plug-connected with the sealing ring, the plug-in block is cylindrical and fixed on the surface of the sealing ring, and the plug-in blocks are evenly distributed on the surface of the sealing ring in four groups.

[0011] Preferably, the springs are in two groups connected to the outer surface of the insert block, the surface of the springs is in an arc shape, and the slots are in four groups corresponding to the insert block and opened on the outer surface of the action cylinder.

[0012] Preferably, an abutment mechanism is provided on the inner side of the action cylinder, and the abutment mechanism includes an adjusting plate, the adjusting plate is rotatably connected to the inner side of the action cylinder, the surface of the adjusting plate is fixedly connected to a support block, the surface of the support block is movably connected to a resist block, the surface of the action cylinder is penetrated by a resist rod, the resist rod and the adjusting plate are abutted and connected, the inner side of the action cylinder is fixedly connected to a support plate, the adjusting plate is rotatably connected to the action cylinder through the support plate, the inner side of the action cylinder is fixedly connected to a fixing plate, and a limiting groove is provided on the surface of the fixing plate.

[0013] Preferably, the adjustment plate is in the shape of a long plate, the adjustment plate and the support plate are rotatably connected via a rotating shaft, and the support plates are in two groups fixedly connected to the inner surface of the action cylinder.

[0014] Preferably, a ball groove is formed at one end of the support block away from the adjustment plate, a rotating ball is fixedly connected to one end of the stop block close to the support block, and the stop block and the support block are rotatably connected via the rotating ball and the ball groove.

[0015] Preferably, the push rod is in the shape of a long rod and passes through the surface of the operating cylinder, the support plate is connected to the side of the adjustment plate away from the support block, and the fixing plate is in the shape of a long plate and fixed on the inner surface of the operating cylinder.

[0016] Preferably, the surface of the limiting groove is in an arc shape, a sliding rod is fixedly connected to the surface of the adjustment plate, and the sliding rod and the limiting groove are plug-in and slidably connected.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. During the use of the leak-proof gas pipeline valve, the connection between the pipeline and the operating cylinder realizes the squeezing of the airbag under the action of the pipeline, so as to achieve the squeezing and flow of the gas in the airbag, and the connection between the catheter and the airbag, and the connection between the catheter and the sealing ring realizes the transportation of the gas in the sealing ring, and the abutting connection between the sealing ring and the pipeline is achieved to achieve its sealing effect, and the connection between the plug and the sealing ring, the connection between the spring and the plug, and the abutting connection between the slot and the reed are realized under the connection of the plug and the sealing ring, so as to achieve the connection and fixation of the sealing ring on the operating cylinder, and the disassembly and replacement of the sealing ring is convenient.

[0019] 2. The leak-proof gas pipeline valve can realize the sealing of pipeline connection and replacement of sealing ring at the same time. Through the abutment of the abutment rod and the adjusting plate, under the abutment connection of the sealing ring and the abutment rod, the abutment rod can change the action angle of the adjusting plate in the action cylinder. Under the connection of the abutment block and the support block, the abutment support of the pipeline after connection is realized, so as to achieve the support of its connection angle and improve the service life of its pipeline connection. Under the action of the support plate and the fixed plate, through the connection of the limit groove and the fixed plate, the action angle of the adjusting plate on the support plate is supported and controlled, so as to avoid the abutment position of the abutment rod against the sealing ring being too long, which affects the use of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic front perspective view of the structure of the present invention;

[0021] Figure 2 It is a bottom-up perspective schematic diagram of the structure of the present invention;

[0022] Figure 3 It is a partial side perspective schematic diagram of the structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 A schematic 3D cross-sectional view of the structure of the middle action cylinder;

[0024] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 6 For the present invention Figure 4 A three-dimensional schematic diagram of the connection structure between the middle airbag and the sealing ring;

[0026] Figure 7 For the present invention Figure 3 Schematic diagram of a partial top view and section of the connection structure between the middle sealing ring and the action cylinder.

[0027] In the figure: 1. Valve housing; 11. Control rod; 12. Connecting ring; 13. Actuating cylinder; 2. Air bag; 21. Sealing ring; 22. Actuating groove; 23. Conduit; 24. Insert; 25. Reed; 26. Slot; 3. Adjusting plate; 31. Abutment; 32. Support block; 33. Abutment rod; 34. Support plate; 35. Fixing plate; 36. Limiting groove. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-7 , an embodiment provided by the present invention:

[0030] A leak-proof gas pipeline valve, comprising:

[0031] The valve body includes a valve housing 1, a control rod 11 is provided on the surface of the valve housing 1, a connecting ring 12 is sleeved on the outer surface of the valve housing 1, and an operating cylinder 13 is fixedly connected to both sides of the valve housing 1. Under the connection between the valve housing 1 and the control rod 11, the control rod 11 controls the passage of the valve housing 1, and under the connection between the connecting ring 12 and the operating cylinder 13, the connection and fixation between the pipeline and the valve housing 1 are facilitated;

[0032] The sealing mechanism includes an airbag 2, which is connected to the surface of the action cylinder 13. The outer surface of the action cylinder 13 is sleeved with a sealing ring 21. An action groove 22 is provided in the middle of the action cylinder 13. A catheter 23 is provided on the inner side of the action groove 22. The two ends of the catheter 23 are plugged into and connected to the surfaces of the airbag 2 and the sealing ring 21. A plug block 24 is fixedly connected to the side of the sealing ring 21 close to the action cylinder 13. A spring 25 is fixedly connected to the surface of the plug block 24. A slot 26 is provided on the surface of the action cylinder 13. The spring 25 and the slot 26 are abutted and connected. Through the connection between the airbag 2 and the catheter 23, under the action of the action groove 22, the connection of the catheter 23 to the sealing ring 21 is realized. Through the action of the catheter 23, the airbag 2 controls and adjusts the action volume of the sealing ring 21.

[0033] Furthermore, the airbags 2 are connected to the surface of the action cylinder 13 in four groups. The surface of the action cylinder 13 is provided with grooves, and the airbags 2 are connected to the action cylinder 13 through the grooves. When the action cylinder 13 and the airbags 2 are connected, when the action cylinder 13 and the pipeline are connected, the airbags 2 are squeezed by the pipeline to achieve the extrusion and discharge of the gas in the airbags 2.

[0034] Furthermore, the sealing ring 21 is in a circular ring shape and is connected to the outer surface of the action cylinder 13. The sealing ring 21 is made of rubber, and the interior of the sealing ring 21 is hollow. The conduit 23 is plugged and connected to the airbag 2 through the action groove 22. Through the connection between the sealing ring 21 and the action cylinder 13, under the connection between the sealing ring 21 and the conduit 23, the gas in the airbag 2 enters the sealing ring 21 through the action of the conduit 23, so that the volume of the sealing ring 21 acting on the action cylinder 13 is changed, and a sealed connection between the action cylinder 13 and the pipeline is realized.

[0035] Furthermore, the conduit 23 passes through the action groove 22 and is plugged into the sealing ring 21. The plug block 24 is cylindrical and fixed on the surface of the sealing ring 21. The plug blocks 24 are evenly distributed on the surface of the sealing ring 21 in four groups. Through the action of the conduit 23, the gas in the airbag 2 and the sealing ring 21 is transported and circulated, so that the sealing ring 21 has a sealing effect on the connecting pipe on the action cylinder 13, thereby achieving an anti-leakage effect.

[0036] Furthermore, the reeds 25 are connected to the outer surface of the plug 24 in two groups, and the surface of the reed 25 is in an arc shape. The slots 26 are opened in four groups and correspond to the plug 24 on the outer surface of the action cylinder 13. Through the connection between the plug 24 and the sealing ring 21, under the connection between the plug 24 and the reed 25, the reed 25 and the slot 26 are abutted to achieve the position fixation of the plug 24 in the slot 26, thereby achieving the effect of fixing the working position of the sealing ring 21 on the action cylinder 13.

[0037] Furthermore, an abutment mechanism is provided on the inner side of the action cylinder 13, which includes an adjusting plate 3, which is rotatably connected to the inner side of the action cylinder 13, a support block 32 being fixedly connected to the surface of the adjusting plate 3, a support block 31 being movably connected to the surface of the support block 32, a push rod 33 being passed through the surface of the action cylinder 13, the push rod 33 and the adjusting plate 3 being abutted and connected, a support plate 34 being fixedly connected to the inner side of the action cylinder 13, the adjusting plate 3 being rotatably connected to the action cylinder 13 through the support plate 34, a fixing plate 35 being fixedly connected to the inner side of the action cylinder 13, a limiting groove 36 being passed through the surface of the fixing plate 35, and the connection between the adjusting plate 3 and the support plate 34 and the abutment connection between the push rod 33 and the adjusting plate 3 realizing the action position and angle of the support block 32 and the push block 31 on the action cylinder 13, so as to achieve the abutment and supporting effect of the push block 31 on the connecting pipe on the action cylinder 13.

[0038] Furthermore, the adjustment plate 3 is in the shape of a long plate, and the adjustment plate 3 and the support plate 34 are rotatably connected by a rotating shaft. The support plates 34 are fixedly connected to the inner surface of the action cylinder 13 in two groups. Through the connection between the adjustment plate 3 and the support plate 34, and the fixed connection between the support plate 34 and the action cylinder 13, the action position support of the adjustment plate 3 in the action cylinder 13 is realized, and the rotational connection between the adjustment plate 3 and the support plate 34 can change the action angle of the adjustment plate 3 in the action cylinder 13.

[0039] Furthermore, a ball groove is provided at one end of the support block 32 away from the adjustment plate 3, and a rotating ball is fixedly connected to the end of the stop block 31 close to the support block 32. The stop block 31 and the support block 32 are rotatably connected through the rotating ball and the ball groove. Through the fixed connection between the support block 32 and the adjustment plate 3 and the rotatable connection between the support block 32 and the stop block 31, the action angle of the stop block 31 is changed, thereby achieving a full stop effect between the stop block 31 and the pipeline.

[0040] Furthermore, the push rod 33 is in the shape of a long rod and passes through the surface of the action cylinder 13, the support plate 34 is connected to the side of the adjustment plate 3 away from the support block 32, and the fixed plate 35 is in the shape of a long plate and fixed to the inner surface of the action cylinder 13. Through the penetration connection between the push rod 33 and the action cylinder 13, and the abutment connection between the push rod 33 and the adjustment plate 3, when the volume of the sealing ring 21 changes, the sealing ring 21 squeezes the push rod 33, thereby changing the action angle of the adjustment plate 3 on the support plate 34, and realizing the abutment and support effect of the block 31 on the pipeline.

[0041] Furthermore, the surface of the limiting groove 36 is in an arc shape, and a sliding rod is fixedly connected to the surface of the adjustment plate 3, and the sliding rod and the limiting groove 36 are inserted and slidably connected. Through the connection between the fixed plate 35 and the working cylinder 13, under the connection between the limiting groove 36 and the fixed plate 35, the rotation angle of the adjustment plate 3 on the working cylinder 13 is limited, and the working position of the push rod 33 on the working cylinder 13 is ensured, and the excessive contact of the push rod 33 with the sealing ring 21 is prevented, thereby affecting the use effect of the sealing ring 21 on the working cylinder 13.

[0042] Working principle: When using the valve housing 1, the operator first connects the pipeline to the surface of the working cylinder 13. Under the squeezing of the airbag 2 on the pipeline and the surface of the working cylinder 13, the gas in the airbag 2 flows to the sealing ring 21 through the conduit 23, so as to change the effective volume of the sealing ring 21 on the working cylinder 13, realize the tight fit between the sealing ring 21 and the pipeline and the working cylinder 13, and achieve the effect of its sealing connection. Under the connection between the plug 24 and the sealing ring 21, through the connection between the plug 24 and the reed 25, the plug 24 is fixed in the effective position in the slot 26, so as to achieve the use of the sealing ring 21 connected to the working cylinder 13 and facilitate the replacement of the sealing ring 21.

[0043] When the effective volume of the sealing ring 21 changes, the sealing ring 21 will squeeze the push rod 33. Under the abutment connection between the push rod 33 and the adjustment plate 3, the effective angle of the adjustment plate 3 on the support plate 34 is changed, so that the effective positions of the support block 32 and the push block 31 on the action cylinder 13 are changed, and the abutment support of the push block 31 and the connecting pipe on the action cylinder 13 is realized. Under the connection between the fixed plate 35 and the action cylinder 13, the connection between the limit groove 36 and the fixed plate 35 is realized to limit the rotation angle of the adjustment plate 3, so as to prevent the push rod 33 from excessively abutting the sealing ring 21 and affecting the use effect of the sealing ring 21 on the action cylinder 13.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A leak-proof gas pipeline valve, characterized in that: include: The valve body comprises a valve housing (1), a control rod (11) is provided on the surface of the valve housing (1), a connecting ring (12) is sleeved on the outer surface of the valve housing (1), and an action cylinder (13) is fixedly connected to both sides of the valve housing (1); The sealing mechanism comprises an airbag (2), wherein the airbag (2) is connected to the surface of an action cylinder (13), a sealing ring (21) is sleeved on the outer surface of the action cylinder (13), an action groove (22) is provided in the middle of the action cylinder (13), a guide tube (23) is provided on the inner side of the action groove (22), and both ends of the guide tube (23) are plug-connected to the surfaces of the airbag (2) and the sealing ring (21), a plug block (24) is fixedly connected to the surface of the sealing ring (21) close to the action cylinder (13), a spring (25) is fixedly connected to the surface of the plug block (24), a slot (26) is provided on the surface of the action cylinder (13), the spring (25) and the slot (26) are abutted and connected, and the inner side of the action cylinder (13) is fixed to the surface of the action cylinder (13). A contact mechanism is provided on the side, the contact mechanism comprising an adjusting plate (3), the adjusting plate (3) is rotatably connected to the inner side of the action cylinder (13), the surface of the adjusting plate (3) is fixedly connected to a support block (32), the surface of the support block (32) is movably connected to a contact block (31), the surface of the action cylinder (13) is penetrated by a contact rod (33), the contact rod (33) and the adjusting plate (3) are contact-connected, the inner side of the action cylinder (13) is fixedly connected to a support plate (34), the adjusting plate (3) is rotatably connected to the action cylinder (13) through the support plate (34), the inner side of the action cylinder (13) is fixedly connected to a fixing plate (35), and the surface of the fixing plate (35) is penetrated by a limiting groove (36).

2. The leak-proof gas pipeline valve according to claim 1, characterized in that: The airbags (2) are connected to the surface of the action cylinder (13) in four groups. The surface of the action cylinder (13) is provided with grooves, and the airbags (2) are connected to the action cylinder (13) via the grooves.

3. The anti-leakage gas pipeline valve according to claim 1, characterized in that: The sealing ring (21) is annularly connected to the outer surface of the action cylinder (13). The sealing ring (21) is made of rubber. The interior of the sealing ring (21) is hollow. The catheter (23) is plug-connected to the airbag (2) through the action groove (22).

4. The anti-leakage gas pipeline valve according to claim 1, characterized in that: The conduit (23) passes through the action groove (22) and is plugged into the sealing ring (21). The plug block (24) is cylindrical and fixed on the surface of the sealing ring (21). The plug blocks (24) are evenly distributed in four groups on the surface of the sealing ring (21).

5. The anti-leakage gas pipeline valve according to claim 1, characterized in that: The reeds (25) are connected to the outer surface of the insert block (24) in two groups, and the surface of the reeds (25) is arc-shaped. The slots (26) are opened on the outer surface of the action cylinder (13) in four groups corresponding to the insert block (24).

6. The anti-leakage gas pipeline valve according to claim 1, characterized in that: The adjustment plate (3) is in the shape of a long plate. The adjustment plate (3) and the support plate (34) are rotatably connected via a rotating shaft. The support plates (34) are in two groups fixedly connected to the inner surface of the action cylinder (13).

7. The anti-leakage gas pipeline valve according to claim 1, characterized in that: A ball groove is provided at one end of the support block (32) away from the adjustment plate (3), and a rotating ball is fixedly connected to one end of the stop block (31) close to the support block (32). The stop block (31) and the support block (32) are rotatably connected via the rotating ball and the ball groove.

8. The leak-proof gas pipeline valve according to claim 1, characterized in that: The push rod (33) is in the shape of a long rod and penetrates the surface of the action cylinder (13); the support plate (34) is connected to the side of the adjustment plate (3) away from the support block (32); and the fixing plate (35) is in the shape of a long plate and fixed to the inner surface of the action cylinder (13).

9. The anti-leakage gas pipeline valve according to claim 1, characterized in that: The surface of the limiting groove (36) is arc-shaped, and a sliding rod is fixedly connected to the surface of the adjustment plate (3), and the sliding rod and the limiting groove (36) are plug-engaged and slidably connected.

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