Interface-adjustable butterfly valve with leakage alarm function

Abstract

The invention discloses an interface-adjustable butterfly valve with a leakage alarm function, and relates to the field of butterfly valves, the interface-adjustable butterfly valve comprises a valve body and a sealing valve plate rotatably mounted in the valve body, the upper end of the valve body is provided with a driving structure, the driving structure is fixedly connected with the sealing valve plate, and the outer side of the valve body is fixedly provided with two groups of mounting sleeves; a detection head is installed in the installation sleeve in a clamped mode, the outer side of the valve body is sleeved with two sets of lower clamping rings and upper clamping rings, and the lower clamping rings are rotationally connected with the upper clamping rings. According to the interface-adjustable butterfly valve with the leakage alarm function, external connection pipes of different sizes can be limited through the arc-shaped clamping blocks, so that the butterfly valve can be in butt joint with the external connection pipes of different sizes, the lower clamping ring and the upper clamping ring can be mounted and dismounted, and thus mounting and dismounting of an alarm are completed; and the alarm can be matched with the detection head to detect leaked objects, so that detection of the butterfly valve is completed, and the detection effect of the butterfly valve is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of butterfly valves, in particular to an interface-adjustable butterfly valve with a leakage alarm function. Background Art

[0002] The butterfly valve is one of the commonly used on-off valves in pipelines. The butterfly valve controls the opening and closing of the valve by rotating the disc-shaped valve plate inside the butterfly valve. It is generally used to seal the fluid or gas inside the pipeline. The butterfly valve has a simple internal structure and is easy to operate. It is more common in industry. However, the existing butterfly valves still have certain defects in use. The existing butterfly valve leakage alarm detector will sound a whistle to warn the surroundings when it detects liquid, but this type of warning method is only used as a back-up measure. Many valve body connection leakages are caused by uneven sealing gaskets and some impurities during installation, or unstable pipe end docking causing errors during further fixing. Patent application publication number CN215861793U discloses a butterfly valve with a leakage warning function, which is provided with a side clamping piece structure that facilitates stable sealing installation of the device. During the installation and use of the device, the side clamping piece cooperates with the movable collar and the movable blade to adjust the movable blade, which can facilitate the sealing gasket and sponge adsorption pad on the surface of the connecting flange to be leveled and limited and the surface debris to be scraped and cleaned through the fitting scraper structure before installation, so as to ensure the sealing performance of the fitting part. At the same time, the movable clamping plate that can be adjusted can provide auxiliary clamping and positioning during the initial docking installation of the connecting flange, which is convenient for maintaining stable fitting during docking and helps to ensure the installation stability of stable docking; Patent application publication number CN214008110U discloses a wear-resistant butterfly valve for HVAC equipment. The temperature of the heating inside the pipeline can be effectively detected through the temperature display on the top of the butterfly valve body, which is reflected on the display screen, allowing the operator to monitor the temperature of the heating in real time. The heating leakage alarm can detect whether there is a leakage in the heating and sound an alarm through a buzzer. The heating temperature will be reflected through the display screen. When the heating leaks, an alarm will be sounded through the buzzer, so as to notify the operator to come for maintenance. This wear-resistant butterfly valve for HVAC equipment is made of wear-resistant steel and nitrile rubber, and has good wear resistance. In the above-mentioned public patent, the butterfly valve solves the above-mentioned problems, but the butterfly valve in the patent still has the following problems. During the use of the butterfly valve, the detection equipment and the alarm on the outside of the butterfly valve need to work simultaneously. When the detection equipment detects leakage, the alarm will perform an alarm process. The alarm is fixedly installed on the outside of the external structure of the butterfly valve. During use, it is difficult to remove the external structure of the butterfly valve to maintain or replace the alarm, which may cause trouble to the normal alarm detection of the butterfly valve and affect the normal detection and replacement of the butterfly valve, which may easily affect the use of the butterfly valve.

[0003] In view of the above problems, it is urgent to carry out innovative design based on the original butterfly valve structure. Summary of the invention

[0004] The object of the present invention is to provide an interface-adjustable butterfly valve with a leakage alarm function, so as to solve the problem that the alarm proposed in the above background technology is fixedly installed on the outside of the external structure of the butterfly valve, and it is difficult to remove the external structure of the butterfly valve to maintain or replace the alarm during use, which may cause trouble to the normal alarm detection of the butterfly valve, and at the same time affect the normal detection and replacement of the butterfly valve, which may easily affect the use of the butterfly valve.

[0005] To achieve the above object, the present invention provides the following technical solution: an interface-adjustable butterfly valve with a leakage alarm function, comprising a valve body and a sealing valve plate rotatably mounted inside the valve body; The upper end of the valve body is provided with a driving structure, and the driving structure is fixedly connected to the sealing valve plate, two sets of mounting sleeves are fixedly installed on the outer side of the valve body, and a detection head is clamped and installed inside the mounting sleeve, and the detection head is located on the outer side of the valve body; The outer side of the valve body is sleeved with two sets of lower clamping rings and upper clamping rings, and the lower clamping rings are rotatably connected to the upper clamping rings, and an alarm is mounted on the upper end of the upper clamping ring; A positioning structure is provided between the lower clamping ring and the upper clamping ring; A limited position structure is arranged inside the installation sleeve; A sealing structure is arranged inside the valve body.

[0006] Preferably, the interior of the positioning structure is provided with a docking block, a limit block and a fixed block, the docking block is fixedly installed on the open end of the upper clamping ring, and the limit block is fixedly installed on the lower end of the docking block, the fixed block is fixedly installed on the open end of the lower clamping ring, and the fixed block is located on the outside of the limit block.

[0007] Preferably, a rotating shaft is rotatably installed inside the limit block, and a columnar block is fixedly installed outside the rotating shaft, and the columnar block is rotatably connected to the limit block, and the columnar block is snap-connected to the fixed block, and torsion springs are sleeved on the outer sides of both ends of the rotating shaft.

[0008] Preferably, an extrusion block is slidably mounted inside the fixed block, and a connecting rod is fixedly mounted on one end of the extrusion block away from the fixed block, and the connecting rod is slidably connected to the fixed block, and a rotating rod is threadedly mounted on the outer side of the connecting rod.

[0009] Preferably, a fixing ring is provided inside the limiting structure, and the fixing ring is fixedly installed on the outside of the mounting sleeve, and a rotating gear ring is rotatably installed inside the fixing ring, and a rotating push rod is fixedly installed at an equal angle on the outside of the rotating gear ring.

[0010] Preferably, a rotating gear is rotatably mounted inside the fixing ring, and a rotating screw is fixedly mounted on one end of the rotating gear close to the middle of the fixing ring, and a moving frame is threadedly mounted on the outer side of the rotating screw, and the moving frame is slidably connected to the mounting sleeve.

[0011] Preferably, an arc-shaped clamp is fixedly installed on one end of the mounting sleeve away from the rotating gear, and the rotating gear is meshingly connected with the rotating gear ring, and the rotating gear ring, the rotating gear ring and the movable frame are arranged in two groups symmetrically about the vertical center axis of the valve body.

[0012] Preferably, an inner rubber ring and an outer rubber ring are provided inside the sealing structure, and the inner rubber ring and the outer rubber ring are nested and installed inside the valve body, and the inner rubber ring is located on the side of the outer rubber ring close to the middle position of the valve body, and the size of the outer rubber ring is larger than that of the inner rubber ring.

[0013] Preferably, the outer rubber ring and the inner rubber ring are both made of flexible silicone material, and ventilation tubes are fixedly installed on the outside of the outer rubber ring and the inner rubber ring, and the ventilation tubes are used to keep the internal air pressure of the inner rubber ring and the outer rubber ring stable.

[0014] Preferably, a sealing ring is nested inside the valve body, and the sealing ring is located at both ends of the inner rubber ring and the outer rubber ring, and two groups of the inner rubber ring, the outer rubber ring and the sealing ring are arranged inside the valve body.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By adjusting the position of the arc clamp block, the arc clamp block can limit the external pipes of different sizes, so that the butterfly valve can be docked with external pipes of different sizes. In addition, two groups of arc clamp blocks are provided, which can be used for two groups of external pipes of different sizes, thereby ensuring the installation and use effect of the butterfly valve; 2. By controlling the position of the column block and the fixed block, the installation and removal of the lower clamp ring and the upper clamp ring can be completed, thereby completing the installation and removal of the alarm, and the alarm will cooperate with the detection head to detect the leakage, thereby completing the detection of the butterfly valve, effectively improving the detection effect of the butterfly valve; 3. Further, the inner rubber ring and the outer rubber ring will be deformed through the vent pipe, and the inner rubber ring and the outer rubber ring will seal the gap between the external pipe and the valve body, and multiple sealing rings will seal the gap again, thereby sealing the valve body and the external pipe, ensuring the sealing effect of the butterfly valve and the external pipe; 4. Furthermore, by providing two sets of detection heads and alarms, the accuracy of the detection by the alarm and the detection head can be ensured; 5. Furthermore, by providing two sets of lower clamping rings and upper clamping rings, two sets of alarms can be installed, and the convenience of installation of the alarms can be ensured at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the driving structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the valve body of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the lower clamping ring of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the docking block of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the limit block of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the fixing block of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the detection head of the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the installation sleeve of the present invention; Fig.10 This is a schematic diagram of the three-dimensional structure of the arc-shaped clamp block of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the valve body cross section of the present invention.

[0017] In the figure: 1. valve body; 2. drive structure; 3. sealing valve plate; 4. mounting sleeve; 5. detection head; 6. lower clamping ring; 7. upper clamping ring; 8. alarm; 9. docking block; 10. limit block; 11. fixed block; 12. rotating shaft; 13. cylindrical block; 14. torsion spring; 15. extrusion block; 16. connecting rod; 17. rotating rod; 18. fixing ring; 19. rotating gear ring; 20. rotating gear; 21. rotating screw; 22. moving frame; 23. arc clamping block; 24. rotating push rod; 25. vent pipe; 26. sealing ring; 27. inner rubber ring; 28. outer rubber ring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: This embodiment Figure 1-Figure 10 As shown, in order to solve the problem that the existing butterfly valve can only be installed and used for the same size, the installation and use process of the butterfly valve and the external pipe is disclosed, so that the butterfly valve can be used for different external pipes. The specific contents are as follows: A valve body 1 and a sealing valve plate 3 rotatably mounted inside the valve body 1; A driving structure 2 is provided at the upper end of the valve body 1, and the driving structure 2 is fixedly connected to the sealing valve plate 3. Two sets of mounting sleeves 4 are fixedly installed on the outer side of the valve body 1, and a detection head 5 is mounted inside the mounting sleeve 4, and the detection head 5 is located on the outer side of the valve body 1; The outer side of the valve body 1 is sleeved with two sets of lower clamp rings 6 and upper clamp rings 7, and the lower clamp rings 6 are rotatably connected to the upper clamp rings 7, and an alarm 8 is mounted on the upper end of the upper clamp ring 7; A limited position structure is arranged inside the mounting sleeve 4; A fixing ring 18 is provided inside the limiting structure, and the fixing ring 18 is fixedly installed on the outside of the mounting sleeve 4, and a rotating ring gear 19 is rotatably installed inside the fixing ring 18, and a rotating push rod 24 is fixedly installed at an equal angle on the outside of the rotating ring gear 19; A rotating gear 20 is rotatably mounted inside the fixed ring 18, and a rotating screw 21 is fixedly mounted on one end of the rotating gear 20 close to the middle of the fixed ring 18, and a moving frame 22 is threadedly mounted on the outer side of the rotating screw 21, and the moving frame 22 is slidably connected to the mounting sleeve 4; An arc-shaped clamp block 23 is fixedly mounted on one end of the mounting sleeve 4 away from the rotating gear 20 , and the rotating gear 20 is meshedly connected with the rotating ring gear 19 , and the rotating ring gear 19 , the rotating ring gear 19 and the moving frame 22 are arranged in two groups symmetrically about the vertical center axis of the valve body 1 .

[0020] When using the interface adjustable butterfly valve with leakage alarm function, the butterfly valve is first installed at the position where it needs to work. During the installation of the butterfly valve, the external pipe needs to be docked with the installation sleeve 4, and the valve body 1 needs to be sealed with the external pipe. In this process, it is necessary to limit and clamp the arc-shaped clamp block 23 and the external tube, and in this process, the external tube needs to be located inside the installation sleeve 4, and then the rotating push rod 24 can be pushed to rotate, and the rotation of the rotating push rod 24 will drive the rotating gear ring 19 to rotate, and the rotation of the rotating gear ring 19 will drive the rotating gear 20 meshing with it to rotate, and at this time the rotating gear 20 will drive the rotating screw 21 to rotate, and at this time the rotation of the rotating screw 21 will cause the moving frame 22 to slide inside the installation sleeve 4, and the moving frame 22 will drive the arc-shaped clamp block 23 to move during the movement, and the arc-shaped clamp block 23 will limit and clamp the external tube during the movement, so that the butterfly valve is installed at the required position, thereby completing the installation process of the butterfly valve; By adjusting the position of the arc-shaped clamping block 23, the butterfly valve can be used for external pipes of different sizes, thereby improving the convenience of installing the butterfly valve.

[0021] Embodiment 2: This embodiment is as follows Figure 1-Figure 8 As shown, in order to solve the problem of inconvenient disassembly of the alarm 8 outside the butterfly valve, the disassembly and assembly process of the alarm 8 is disclosed, and the effect of facilitating the disassembly and assembly of the alarm 8 is achieved. The specific contents are as follows: A positioning structure is provided between the lower clamping ring 6 and the upper clamping ring 7; The interior of the positioning structure is provided with a docking block 9, a limiting block 10 and a fixing block 11. The docking block 9 is fixedly mounted on the opening end of the upper clamping ring 7, and the limiting block 10 is fixedly mounted on the lower end of the docking block 9. The fixing block 11 is fixedly mounted on the opening end of the lower clamping ring 6, and the fixing block 11 is located on the outside of the limiting block 10. A rotating shaft 12 is rotatably mounted inside the limit block 10, and a columnar block 13 is fixedly mounted outside the rotating shaft 12. The columnar block 13 is rotatably connected to the limit block 10, and the columnar block 13 is engaged with the fixed block 11. Torsion springs 14 are sleeved on the outer sides of both ends of the rotating shaft 12. An extrusion block 15 is slidably mounted inside the fixed block 11 , and a connecting rod 16 is fixedly mounted on one end of the extrusion block 15 away from the fixed block 11 , and the connecting rod 16 is slidably connected to the fixed block 11 , and a rotating rod 17 is threadedly mounted on the outer side of the connecting rod 16 .

[0022] When the interface adjustable butterfly valve with leakage alarm function is used, after the butterfly valve is installed, the alarm 8 can be installed. In this process, two sets of lower clamp rings 6 and upper clamp rings 7 need to be installed on the outside of the valve body 1. After the lower clamp ring 6 and the upper clamp ring 7 are installed on the outer side of the valve body 1, the limit block 10 can be docked with the fixed block 11. During the process of the limit block 10 and the fixed block 11 being engaged and docked, the fixed block 11 will contact the column block 13 and push the column block 13 to rotate, and the rotation of the column block 13 will drive the rotating shaft 12 to rotate inside the limit block 10, and during the rotation of the rotating shaft 12, the two groups of torsion springs 14 arranged on the outer side thereof will be wound up, and after the fixed block 11 and the limit block 10 are docked, the wound torsion spring 14 will expand, so that the rotating shaft 12 inside the torsion spring 14 will rotate and reset, and the rotation of the rotating shaft 12 will drive the column block 13 to reset, so that the column block 13 and the fixed block 11 can be docked, and then the detection head 5 can be used in conjunction with the alarm 8. After the detection head 5 detects a leak, the alarm 8 will sound an alarm, thereby completing the installation of the two groups of alarms 8; When the alarm 8 is disassembled and replaced, the alarm 8 can be removed from the inside of the valve body 1. At this time, the rotating rod 17 needs to be rotated to make the two groups of connecting rods 16 inside the rotating rod 17 move away from each other. The movement of the connecting rod 16 will release the engagement state of the extrusion block 15 and the fixed block 11. At this time, the extrusion block 15 and the connecting rod 16 can slide inside the fixed block 11. By pushing the rotating rod 17 to move, the extrusion block 15 and the connecting rod 16 can slide inside the fixed block 11. In the process of the extrusion block 15 moving, it will contact the column block 13 and push the column block 13 to rotate. The column block 13 rotates and enters the inside of the limit block 10. At this time, the limit block 10 can be separated from the fixed block 11. At this time, the lower clamping ring 6 and the upper clamping ring 7 can be removed from the outside of the valve body 1, thereby disassembling the alarm 8. At this point, the disassembly and assembly process of the alarm 8 is completed, which effectively improves the convenience of using the butterfly valve.

[0023] Embodiment 3: This embodiment is as follows Figure 1-Figure 3 and Fig.11 As shown, in order to solve the problem of poor sealing effect of the existing butterfly valve, the sealing process of the butterfly valve and the external pipe is disclosed, and the effect of tight sealing between the butterfly valve and the external pipe is achieved. The specific contents are as follows: A sealing structure is provided inside the valve body 1, and an inner rubber ring 27 and an outer rubber ring 28 are provided inside the sealing structure. The inner rubber ring 27 and the outer rubber ring 28 are nested and installed inside the valve body 1, and the inner rubber ring 27 is located on one side of the outer rubber ring 28 close to the middle position of the valve body 1, and the size of the outer rubber ring 28 is larger than that of the inner rubber ring 27; The outer rubber ring 28 and the inner rubber ring 27 are both made of flexible silicone material, and the outer side of the outer rubber ring 28 and the inner rubber ring 27 are fixedly installed with a vent pipe 25, and the outer rubber ring 28 and the inner rubber ring 27 are connected by the vent pipe 25 so that the internal air pressure of the inner rubber ring 27 and the outer rubber ring 28 is kept stable; A sealing ring 26 is nested inside the valve body 1 , and the sealing ring 26 is located at both ends of the inner rubber ring 27 and the outer rubber ring 28 , and two groups of the inner rubber ring 27 , the outer rubber ring 28 and the sealing ring 26 are arranged inside the valve body 1 .

[0024] During the docking process between the valve body 1 and the external tube, the external tube will contact with the inner rubber ring 27 and the outer rubber ring 28, and the inner rubber ring 27 and the outer rubber ring 28 will be squeezed when in contact with the external tube, and the inner rubber ring 27 and the outer rubber ring 28 will be deformed. When the inner rubber ring 27 and the outer rubber ring 28 are deformed, they will ventilate each other through the vent pipe 25, so that the inner rubber ring 27 and the outer rubber ring 28 seal the gap between the valve body 1 and the external tube, and the sealing ring 26 will seal the gap again, thereby completing the sealing process between the valve body 1 and the external tube, effectively ensuring the sealing effect between the butterfly valve and the external tube, and increasing the overall practicality.

[0025] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An interface-adjustable butterfly valve with a leakage alarm function, comprising a valve body (1) and a sealing valve plate (3) rotatably mounted inside the valve body (1); Features: The upper end of the valve body (1) is provided with a driving structure (2), and the driving structure (2) is fixedly connected to the sealing valve plate (3); two sets of mounting sleeves (4) are fixedly mounted on the outer side of the valve body (1), and a detection head (5) is mounted in a snap-fitting manner inside the mounting sleeve (4), and the detection head (5) is located on the outer side of the valve body (1); The outer side of the valve body (1) is sleeved with two sets of lower clamping rings (6) and upper clamping rings (7), the lower clamping rings (6) are rotatably connected to the upper clamping rings (7), and an alarm (8) is mounted on the upper end of the upper clamping ring (7); A positioning structure is provided between the lower clamping ring (6) and the upper clamping ring (7); A limiting structure is arranged inside the mounting sleeve (4); A sealing structure is provided inside the valve body (1).

2. The interface-adjustable butterfly valve with leakage alarm function according to claim 1, characterized in that: A docking block (9), a limiting block (10) and a fixing block (11) are arranged inside the positioning structure; the docking block (9) is fixedly mounted on the open end of the upper clamping ring (7), and the limiting block (10) is fixedly mounted on the lower end of the docking block (9); the fixing block (11) is fixedly mounted on the open end of the lower clamping ring (6), and the fixing block (11) is located outside the limiting block (10).

3. The interface-adjustable butterfly valve with leakage alarm function according to claim 2, characterized in that: A rotating shaft (12) is rotatably mounted inside the limit block (10), and a columnar block (13) is fixedly mounted outside the rotating shaft (12). The columnar block (13) is rotatably connected to the limit block (10), and the columnar block (13) is snap-connected to the fixed block (11). Torsion springs (14) are sleeved on the outer sides of both ends of the rotating shaft (12).

4. The interface-adjustable butterfly valve with leakage alarm function according to claim 3, characterized in that: An extrusion block (15) is slidably mounted inside the fixed block (11), and a connecting rod (16) is fixedly mounted on one end of the extrusion block (15) away from the fixed block (11), and the connecting rod (16) is slidably connected to the fixed block (11), and a rotating rod (17) is threadedly mounted on the outer side of the connecting rod (16).

5. The interface-adjustable butterfly valve with leakage alarm function according to claim 1, characterized in that: A fixing ring (18) is provided inside the limiting structure, and the fixing ring (18) is fixedly mounted on the outside of the mounting sleeve (4), and a rotating gear ring (19) is rotatably mounted inside the fixing ring (18), while a rotating push rod (24) is fixedly mounted at an equal angle on the outside of the rotating gear ring (19).

6. The interface-adjustable butterfly valve with leakage alarm function according to claim 5, characterized in that: A rotating gear (20) is rotatably mounted inside the fixed ring (18), and a rotating screw (21) is fixedly mounted on one end of the rotating gear (20) close to the middle of the fixed ring (18), and a moving frame (22) is threadedly mounted on the outer side of the rotating screw (21), and the moving frame (22) is slidably connected to the mounting sleeve (4).

7. The interface-adjustable butterfly valve with leakage alarm function according to claim 6, characterized in that: An arc-shaped clamping block (23) is fixedly mounted on one end of the mounting sleeve (4) away from the rotating gear (20), and the rotating gear (20) is meshingly connected with the rotating gear ring (19), and the rotating gear ring (19), the rotating gear ring (19) and the moving frame (22) are arranged in two groups symmetrically about the vertical center axis of the valve body (1).

8. The interface-adjustable butterfly valve with leakage alarm function according to claim 1, characterized in that: An inner rubber ring (27) and an outer rubber ring (28) are arranged inside the sealing structure. The inner rubber ring (27) and the outer rubber ring (28) are nested and installed inside the valve body (1), and the inner rubber ring (27) is located on a side of the outer rubber ring (28) close to the middle position of the valve body (1), and the size of the outer rubber ring (28) is larger than that of the inner rubber ring (27).

9. The interface-adjustable butterfly valve with leakage alarm function according to claim 8, characterized in that: The outer rubber ring (28) and the inner rubber ring (27) are both made of flexible silicone material, and a vent pipe (25) is fixedly installed on the outer sides of the outer rubber ring (28) and the inner rubber ring (27), and the outer rubber ring (28) and the inner rubber ring (27) are connected through the vent pipe (25) so that the internal air pressure of the inner rubber ring (27) and the outer rubber ring (28) remains stable.

10. The interface-adjustable butterfly valve with leakage alarm function according to claim 9, characterized in that: A sealing ring (26) is nested and installed inside the valve body (1), and the sealing ring (26) is located at both ends of the inner rubber ring (27) and the outer rubber ring (28), and two groups of the inner rubber ring (27), the outer rubber ring (28) and the sealing ring (26) are arranged inside the valve body (1).

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