Eccentric rotary control valve

Abstract

This invention discloses an eccentric rotary regulating valve, relating to the field of eccentric regulating valve technology. It includes a valve stem located inside a housing; a connecting sleeve slidably fitted onto the outside of the valve stem; a valve core fixedly connected to the connecting sleeve; a stop block located on the right side of the valve body; a pipe located on the left side of the housing; a valve cap threadedly connected to the top of the valve stem; a mating seat with its top slidably contacting the bottom of the housing and its top rotatably connected to the bottom of the valve stem; a mating mechanism; an installation mechanism; and an unlocking mechanism. The mating mechanism consists of two sets. This invention achieves rapid connection and separation of the pipe and the housing through the mating mechanism, the installation mechanism fixes the mating seat to the bottom of the housing, and the unlocking mechanism facilitates the overall disassembly of the valve core assembly. This solves the problems of difficult disassembly and assembly and time-consuming maintenance caused by the valve core being located deep within the inner cavity of traditional valves.

Description

Technical Field

[0001] This invention relates to the field of eccentric control valve technology, and more particularly to an eccentric rotary control valve. Background Technology

[0002] The eccentric rotary control valve (also known as a cam-flex valve) is a new type of control valve that combines the advantages of ball valves and butterfly valves. Its valve core adopts an eccentric rotary structure, allowing the valve core to quickly disengage from the valve seat when opening, and achieving a seal by generating a wedge force during closing. This type of control valve has outstanding advantages such as large flow capacity, wide adjustable range, good sealing performance, and strong erosion resistance. It is widely used in automatic fluid control systems in industries such as petrochemicals, power, metallurgy, papermaking, and textiles, and is particularly suitable for flow and pressure regulation of high-viscosity media, media containing particulate fibers, and under harsh operating conditions.

[0003] Existing eccentric rotary control valves still have the following significant shortcomings in actual use: the valve core and valve seat are difficult to disassemble and assemble, and maintenance is time-consuming. The valve seat of existing eccentric rotary control valves is usually fixed deep in the valve body cavity by threaded clamping or bolts, while the valve core is connected to the eccentric arm by a pin or key. When it is necessary to replace the valve seat or valve core seal, the maintenance personnel must first remove the actuator, valve cover and valve shaft positioning pin, and then use special tools to remove the valve core from the valve body. Then, the valve seat pressure ring is removed or the valve seat is unscrewed. The entire disassembly process requires the gradual disassembly of multiple parts. Moreover, the internal space of the valve body is narrow, making it difficult to use tools such as wrenches and pullers. It is also inconvenient to quickly connect and disassemble with the pipeline or remove it from the pipeline. Therefore, this invention proposes an eccentric rotary control valve to solve the above problems. Summary of the Invention

[0004] The purpose of this application is to provide an eccentric rotary control valve to solve the problems mentioned in the background art, such as the difficulty in disassembling and assembling the valve core and the long maintenance time. In existing eccentric rotary control valves, the valve seat is usually fixed deep in the valve body cavity by threaded clamping or bolts, while the valve core is connected to the eccentric arm by a pin or key. When it is necessary to replace the valve seat or valve core seal, the maintenance personnel must first remove the actuator, valve cover and valve shaft positioning pin, and then use special tools to remove the valve core from the valve body. Then, the valve seat pressure ring is removed or the valve seat is unscrewed. The entire disassembly process requires the gradual disassembly of multiple parts. Moreover, the internal space of the valve body is narrow, making it difficult to use tools such as wrenches and pullers. It is also inconvenient to quickly connect and disassemble with the pipeline and to remove it from the pipeline.

[0005] To achieve the above objectives, this application provides the following technical solution: an eccentric rotary regulating valve, including a housing, which further includes: A valve stem, which is located inside the housing; A connecting sleeve, which is slidably fitted onto the outside of the valve stem; Valve core, which is fixedly connected to the connecting sleeve; A stop block, located on the right side of the valve body; The pipe is located on the left side of the casing; A valve cap, which is threaded onto the top of the valve stem; A docking seat, the top of which slides in contact with the bottom of the housing, and the top of which is rotatably connected to the bottom end of the valve stem; The system includes a docking mechanism, an installation mechanism, and an unlocking mechanism. There are two sets of docking mechanisms, each of which mates with the outer casing and the pipeline. The installation mechanism mates with the unlocking mechanism and the docking seat, respectively.

[0006] With the above structure, the pipe and the shell can be quickly connected and separated through the docking mechanism. The installation mechanism fixes the docking seat to the bottom of the shell, and the unlocking mechanism facilitates the overall disassembly of the valve core assembly. This solves the problem of difficult disassembly and assembly and long maintenance time caused by the valve core being located deep in the inner cavity of traditional valves.

[0007] Preferably, the docking mechanism includes: a docking frame, a docking block, a docking rod, a blocking rod, and a return spring; The docking frame is slidably connected to the outer shell, the docking block is fixedly connected to the outer shell, the docking rod is fixedly connected to the pipe, the docking rod cooperates with the docking block, the blocking rod is slidably connected to the inner side of the docking frame, and the return spring is fixedly connected to the blocking rod and the docking frame respectively. The inner side of the docking frame is in sliding contact with the pipe.

[0008] Furthermore, the docking mechanism achieves rapid mechanical connection and release between the pipeline and the outer shell through the sliding cooperation between the docking frame and the docking block. The docking rod is inserted into the docking block to complete the pipeline positioning, and the blocking rod is locked into the docking frame under the action of the return spring. This avoids the cumbersome steps of using tools to disassemble the flange bolts and makes it convenient to quickly remove the valve from the pipeline.

[0009] Preferably, the installation mechanism includes: two fixing plates, two positioning frames, two positioning springs, and two fixing seats; The fixing plate is fixedly installed on the bottom of the outer shell, the positioning frame is slidably connected to the bottom of the docking seat, the positioning frame is fixedly connected to the positioning spring, the positioning spring is fixedly connected to the spring seat, and the spring seat is fixedly connected to the docking seat.

[0010] Furthermore, the installation mechanism uses two positioning brackets that engage with the positioning slots of the fixing plate under the action of positioning springs to lock the docking seat to the bottom of the housing. The positioning springs automatically reset and lock the positioning brackets, achieving quick fixing and release of the docking seat. This facilitates the removal of the valve stem and valve core assembly from the bottom of the valve body without disassembling the actuator and valve cover.

[0011] Preferably, the unlocking mechanism includes: a fixed rod, a first telescopic rod, a handle, a second telescopic rod, a sliding block, and a pulling rod; The fixed rod is fixedly connected to the positioning frame located on the right side. The first telescopic rod is rotatably connected to the spring seat located on the right side. The output shaft of the first telescopic rod is fixedly connected to the fixed rod. The first telescopic rod is fixedly connected to the second telescopic rod. The output shaft of the second telescopic rod is rotatably connected to the sliding block. The sliding block is fixedly connected to the spring seat located on the left side. The pulling rod is rotatably connected to the sliding block and the positioning frame located on the left side respectively. The handle is fixedly connected to the first telescopic rod.

[0012] Furthermore, the unlocking mechanism is linked to the first and second telescopic rods. By pulling the handle, the first telescopic rod rotates clockwise, causing the fixed rod to move to the left. This causes the fixed rod to move the positioning frame located on the right to the left. When the first telescopic rod rotates, it causes the second telescopic rod to rotate, which in turn causes the sliding rod to slide. This sliding rod then pulls the pulling rod, which in turn pulls the positioning frame located on the left to the left. This causes the two positioning frames to move closer together and disengage from the two fixed rods, achieving simultaneous unlocking of both sides of the docking seat. This simplifies the disassembly steps of the valve core assembly and shortens maintenance time.

[0013] Preferably, the left side of the docking block is provided with a docking groove, and the right side of the docking rod slides in contact with the inner wall of the docking groove to dock the block.

[0014] Furthermore, the mating groove on the left side of the mating block slides into contact with the right side of the mating rod, providing precise radial positioning during pipe connection. This ensures concentric alignment between the pipe and the outer casing, preventing seal failure due to installation deviations, and facilitating quick pipe insertion and positioning.

[0015] Preferably, a blocking groove is provided on the right side of the docking frame, and the left side of the blocking rod slides in contact with the inside of the blocking groove.

[0016] Furthermore, the blocking groove on the right side of the docking frame slides into contact with the left side of the blocking rod, forming a stable limiting structure in the locked state. This effectively restricts the axial movement of the docking frame, prevents the pipe connection from loosening due to vibration, and ensures a reliable connection between the valve and the pipeline.

[0017] Preferably, the two fixed plates are provided with multiple positioning slots arranged at equal intervals on the side that is close to each other, and the two positioning frames are fixedly installed with positioning blocks on the side that is far from each other, and the positioning blocks slide in contact with the inner wall of the positioning slots.

[0018] Furthermore, the multiple positioning slots arranged at equal intervals on the inner sides of the two fixed plates slide in contact with the positioning blocks on the positioning frame, providing multiple precise height settings for the installation of the docking seat. This allows for quantitative adjustment of the connection gap between the bottom of the valve stem and the valve core, improving assembly accuracy and preventing poor sealing or jamming caused by improper gaps.

[0019] Preferably, a sealing gasket is fixedly installed on the top of the docking seat, and the top of the sealing gasket slides in contact with the bottom of the housing.

[0020] Furthermore, the sealing gasket at the top of the mating seat slides into contact with the bottom of the housing, forming an elastic seal after the mating seat is locked, preventing the medium from leaking from the bottom of the housing, while allowing the mating seat to slide smoothly during assembly and disassembly, avoiding damage to the sealing surface.

[0021] Preferably, sealing rings are fixedly installed on the left side of the outer shell and the right side of the pipe, and the two sealing rings slide in contact with each other on their closest sides.

[0022] Furthermore, the sealing rings on the left side of the outer casing and the right side of the pipe slide into contact with each other, forming a double sealing interface after the pipes are connected. This effectively blocks the leakage path of the medium along the connection surface. At the same time, the sliding contact design makes the connection and separation of the pipes smoother, without the need for additional sealing fillers.

[0023] The beneficial effects of this invention are: 1. The docking mechanism uses the sliding fit between the docking frame and the docking block. The docking rod is inserted into the docking block to complete the pipe positioning. The blocking rod is locked into the docking frame under the action of the return spring. This realizes the quick mechanical connection and release between the pipe and the shell, avoiding the tedious steps of using tools to disassemble the flange bolts, and making it convenient to quickly remove the valve from the pipeline. 2. The installation mechanism uses two positioning brackets to engage with the positioning slots of the fixing plate under the action of positioning springs, locking the docking seat to the bottom of the housing. The positioning springs cause the positioning brackets to automatically reset and lock, realizing the quick fixing and release of the docking seat. This makes it easy to pull out the valve stem and valve core assembly from the bottom of the valve body without disassembling the actuator and valve cover. 3. The unlocking mechanism is linked to the first and second telescopic rods. By pulling the handle, the first telescopic rod can be rotated clockwise, which moves the fixed rod to the left. This causes the fixed rod to move the positioning frame located on the right to the left. When the first telescopic rod rotates, it can also rotate the second telescopic rod, which in turn causes the sliding rod to slide. This allows the sliding rod to pull the pulling rod, which in turn moves the positioning frame located on the left to the left. This causes the two positioning frames to move closer to each other and disengage from the two fixed rods, thus unlocking both sides of the docking seat simultaneously. This simplifies the disassembly steps of the valve core assembly and shortens maintenance time. This invention enables rapid connection and separation of the pipeline and the outer shell through a docking mechanism. The installation mechanism fixes the docking seat to the bottom of the outer shell, and the unlocking mechanism facilitates the overall disassembly of the valve core assembly. This solves the problem of difficult disassembly and assembly and long maintenance time caused by the valve core being located deep inside the cavity in traditional valves. Attached Figure Description

[0024] Figure 1 This is a schematic front view of the structure according to an embodiment of this application; Figure 2 This is a top view schematic diagram of the structural valve core according to an embodiment of this application; Figure 3 Structural appendix of the embodiments of this application Figure 1 Enlarged diagram of A in the middle; Figure 4 Structural appendix of the embodiments of this application Figure 1 Enlarged diagram of B in the middle; Figure 5 This is a three-dimensional schematic diagram of the structural docking block and docking rod according to an embodiment of this application.

[0025] In the diagram: 1. Outer shell; 2. Valve stem; 3. Valve cap; 4. Connecting sleeve; 5. Valve core; 6. Stop block; 7. Pipeline; 8. Sealing ring; 9. Connecting bracket; 10. Connecting block; 11. Connecting rod; 12. Blocking rod; 13. Return spring; 14. Fixing plate; 15. Connecting seat; 16. Positioning bracket; 17. Positioning spring; 18. Fixing seat; 19. Fixing rod; 20. First telescopic rod; 21. Handle; 22. Second telescopic rod; 23. Sliding block; 24. Pulling rod; 25. Sealing gasket. Detailed Implementation

[0026] The present invention will be further explained below with reference to specific embodiments.

[0027] refer to Figures 1-5 This embodiment proposes an eccentric rotary regulating valve, including a housing 1, which further includes: Valve stem 2, which is located inside the housing 1; Connecting sleeve 4 is slidably sleeved on the outside of valve stem 2; Valve core 5 is fixedly connected to connecting sleeve 4; Stop 6, which is located on the right side of valve body 1; Pipe 7 is located on the left side of the outer casing 1; Valve cap 3 is threaded onto the top of valve stem 2; The top of the docking seat 15 is in sliding contact with the bottom of the outer casing 1, and the top of the docking seat 15 is rotatably connected to the bottom end of the valve stem 2. The assembly includes a docking mechanism, an installation mechanism, and an unlocking mechanism. There are two sets of docking mechanisms, which are respectively matched with the outer casing 1 and the pipe 7. The installation mechanism is respectively matched with the unlocking mechanism and the docking seat 15.

[0028] With the above structure, the pipe 7 and the outer shell 1 can be quickly connected and separated through the docking mechanism. The installation mechanism fixes the docking seat 15 to the bottom of the outer shell 1, and the unlocking mechanism facilitates the overall disassembly of the valve core 5 assembly. This solves the problem of difficult disassembly and assembly and long maintenance time caused by the valve core 5 being located deep in the inner cavity of traditional valves.

[0029] In this embodiment, the docking mechanism includes: docking frame 9, docking block 10, docking rod 11, blocking rod 12, and return spring 13; The docking frame 9 is slidably connected to the outer shell 1, the docking block 10 is fixedly connected to the outer shell 1, the docking rod 11 is fixedly connected to the pipe 7, the docking rod 11 cooperates with the docking block 10, the blocking rod 12 is slidably connected to the inner side of the docking frame 9, and the return spring 13 is fixedly connected to the blocking rod 12 and the docking frame 9 respectively. The inner side of the docking frame 9 is in sliding contact with the pipe 7. The docking mechanism achieves the positioning of the pipe 7 by sliding the docking frame 9 and the docking block 10, the docking rod 11 is inserted into the docking block 10, and the blocking rod 12 is locked into the docking frame 9 under the action of the return spring 13. This realizes the quick mechanical connection and release between the pipe 7 and the outer shell 1, avoiding the cumbersome steps of using tools to disassemble the flange bolts, and making it convenient to quickly remove the valve from the pipeline.

[0030] In this embodiment, the installation mechanism includes: two fixing plates 14, two positioning frames 16, two positioning springs 17, and two fixing seats 18; The fixing plate 14 is fixedly installed at the bottom of the housing 1. The positioning frame 16 is slidably connected to the bottom of the docking seat 15. The positioning frame 16 is fixedly connected to the positioning spring 17. The positioning spring 17 is fixedly connected to the fixing seat 18. The fixing seat 18 is fixedly connected to the docking seat 15. The installation mechanism uses two positioning frames 16 to engage with the positioning groove of the fixing plate 14 under the action of the positioning spring 17, locking the docking seat 15 at the bottom of the housing 1. The positioning spring 17 causes the positioning frame 16 to automatically reset and lock, realizing the quick fixing and release of the docking seat 15. This makes it easy to pull out the valve stem 2 and valve core 5 assembly from the bottom of the valve body 1 without disassembling the actuator and valve cover.

[0031] In this embodiment, the unlocking mechanism includes: a fixed rod 19, a first telescopic rod 20, a handle 21, a second telescopic rod 22, a sliding block 23, and a pulling rod 24; The fixed rod 19 is fixedly connected to the positioning frame 16 located on the right side. The first telescopic rod 20 is rotatably connected to the fixed seat 18 located on the right side. The output shaft of the first telescopic rod 20 is fixedly connected to the fixed rod 19. The first telescopic rod 20 is fixedly connected to the second telescopic rod 22. The output shaft of the second telescopic rod 22 is rotatably connected to the sliding block 23. The sliding block 23 is fixedly connected to the fixed seat 18 located on the left side. The pulling rod 24 is rotatably connected to the sliding block 23 and the positioning frame 16 located on the left side. The handle 21 is fixedly connected to the first telescopic rod 20. The unlocking mechanism is linked through the first telescopic rod 20 and the second telescopic rod 22. By pulling the handle 21, the... The handle 21 can drive the first telescopic rod 20 to rotate clockwise, thereby pulling the fixed rod 19 to move to the left. This allows the fixed rod 19 to move the positioning frame 16 located on the right side to the left. When the first telescopic rod 20 rotates, it can drive the second telescopic rod 22 to rotate. The second telescopic rod 22 can then drive the sliding block 23 to slide, allowing the sliding block 23 to pull the pulling rod 24. The pulling rod 24 can then pull the positioning frame 16 located on the left side to move to the left, causing the two positioning frames 16 to move closer to each other and disengage from the two fixed plates 14. This achieves simultaneous unlocking of both sides of the docking seat 15, simplifying the disassembly steps of the valve core 5 assembly and shortening maintenance time.

[0032] In this embodiment, a docking groove is provided on the left side of the docking block 10, and the right side of the docking rod 11 slides in contact with the inner wall of the docking groove. The docking groove on the left side of the docking block 10 slides in contact with the right side of the docking rod 11, providing precise radial positioning when the pipe 7 is connected, ensuring that the pipe 7 and the outer shell 1 are concentrically aligned, avoiding sealing failure caused by installation deviation, and facilitating quick insertion and positioning of the pipe 7.

[0033] In this embodiment, a blocking groove is provided on the right side of the docking frame 9, and the left side of the blocking rod 12 slides in contact with the inner wall of the blocking groove. The blocking groove on the right side of the docking frame 9 slides in contact with the left side of the blocking rod 12, forming a stable limiting structure in the locked state, which effectively restricts the axial movement of the docking frame 9, prevents the connection of the pipe 7 from loosening due to vibration, and ensures a reliable connection between the valve and the pipeline.

[0034] In this embodiment, multiple positioning slots are provided on the side of the two fixed plates 14 that are close to each other, and positioning blocks are fixedly installed on the side of the two positioning frames 16 that are far from each other. The positioning blocks slide in contact with the inner wall of the positioning slots. The multiple positioning slots arranged at equal intervals on the inner side of the two fixed plates 14 slide in contact with the positioning blocks on the positioning frames 16, providing multiple precise height settings for the installation height of the docking seat 15. This allows the connection gap between the bottom end of the valve stem 2 and the valve core 5 to be quantitatively adjusted, improving the assembly accuracy and avoiding poor sealing or jamming caused by improper gaps.

[0035] In this embodiment, a sealing gasket 25 is fixedly installed on the top of the docking seat 15. The top of the sealing gasket 25 slides in contact with the bottom of the outer shell 1. The sealing gasket 25 on the top of the docking seat 15 slides in contact with the bottom of the outer shell 1. After the docking seat 15 is locked, an elastic seal is formed, which prevents the medium from leaking from the bottom of the outer shell 1. At the same time, it allows the docking seat 15 to slide smoothly during disassembly and assembly, avoiding damage to the sealing surface.

[0036] In this embodiment, sealing rings 8 are fixedly installed on the left side of the outer shell 1 and the right side of the pipe 7. The two sealing rings 8 slide in contact with each other on their sides. The sealing rings 8 on the left side of the outer shell 1 and the right side of the pipe 7 slide in contact with each other, forming a double sealing interface after the pipe 7 is connected. This effectively blocks the leakage path of the medium along the connection surface. At the same time, the sliding contact design makes the connection and separation of the pipe 7 smoother, without the need for additional sealing filler.

[0037] Working Principle: The docking mechanism enables rapid connection and separation of pipe 7 and outer shell 1. The docking mechanism utilizes the sliding engagement of docking bracket 9 and docking block 10. The docking rod 11 inserts into docking block 10 to position pipe 7. The blocking rod 12, under the action of return spring 13, engages with docking bracket 9 to lock it in place. This achieves rapid mechanical connection and release between pipe 7 and outer shell 1, avoiding the tedious steps of disassembling flange bolts with tools, and facilitating quick removal of the valve from the pipeline. The installation mechanism fixes docking seat 15 to the bottom of outer shell 1. The unlocking mechanism facilitates the overall disassembly of valve core 5 assembly. The installation mechanism uses two positioning brackets 16, under the action of positioning spring 17, to engage with the positioning grooves of fixing plate 14, locking docking seat 15 to the bottom of outer shell 1. Positioning spring 17 automatically resets and locks the positioning brackets 16, achieving rapid fixing and release of docking seat 15. This allows for easy removal of valve stem 2 and valve core 5 assembly from the bottom of valve body 1 without disassembly. The actuator and valve cover are removed. The unlocking mechanism is linked by the first telescopic rod 20 and the second telescopic rod 22. By pulling the handle 21, the handle 21 can drive the first telescopic rod 20 to rotate clockwise, which pulls the fixed rod 19 to move to the left. This allows the fixed rod 19 to drive the positioning frame 16 located on the right to move to the left. When the first telescopic rod 20 rotates, it can drive the second telescopic rod 22 to rotate. The second telescopic rod 22 can then drive the sliding block 23 to slide, which can then pull the pulling rod 24. The pulling rod 24 can then pull the positioning frame 16 located on the left to move to the left, causing the two positioning frames 16 to move closer to each other and disengage from the two fixed plates 14. This achieves simultaneous unlocking of both sides of the docking seat 15, simplifies the disassembly steps of the valve core 5 assembly, shortens maintenance time, and solves the problem of difficult disassembly and assembly and long maintenance time caused by the valve core 5 being located deep in the inner cavity of traditional valves.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An eccentric rotary regulating valve, comprising a housing (1), characterized in that, This also includes: Valve stem (2), which is located inside the housing (1); Connecting sleeve (4), which is slidably sleeved on the outside of valve stem (2); Valve core (5), which is fixedly connected to connecting sleeve (4); Stop (6), the stop (6) is located on the right side of the valve body (1); / / Note: the original text "valve body" is actually the outer shell, which is uniformly replaced with (1). Pipe (7), the pipe (7) is located on the left side of the outer casing (1); Valve cap (3), which is threaded to the top of valve stem (2); The top of the docking seat (15) is in sliding contact with the bottom of the outer shell (1), and the top of the docking seat (15) is rotatably connected to the bottom end of the valve stem (2). The assembly includes a docking mechanism, an installation mechanism, and an unlocking mechanism. The docking mechanism consists of two sets, which are respectively matched with the outer shell (1) and the pipe (7). The installation mechanism is respectively matched with the unlocking mechanism and the docking seat (15).

2. The eccentric rotary regulating valve according to claim 1, characterized in that, The docking mechanism includes: docking frame (9), docking block (10), docking rod (11), blocking rod (12) and return spring (13); The docking frame (9) is slidably connected to the outer shell (1), the docking block (10) is fixedly connected to the outer shell (1), the docking rod (11) is fixedly connected to the pipe (7), the docking rod (11) cooperates with the docking block (10), the blocking rod (12) is slidably connected to the inner side of the docking frame (9), the return spring (13) is fixedly connected to the blocking rod (12) and the docking frame (9) respectively, and the inner side of the docking frame (9) is in sliding contact with the pipe (7).

3. The eccentric rotary regulating valve according to claim 1, characterized in that, The installation mechanism includes: two fixing plates (14), two positioning frames (16), two positioning springs (17), and two fixing seats (18). The fixing plate (14) is fixedly installed at the bottom of the outer shell (1), the positioning frame (16) is slidably connected to the bottom of the docking seat (15), the positioning frame (16) is fixedly connected to the positioning spring (17), the positioning spring (17) is fixedly connected to the fixing seat (18), and the fixing seat (18) is fixedly connected to the docking seat (15).

4. The eccentric rotary regulating valve according to claim 1, characterized in that, The unlocking mechanism includes: a fixed rod (19), a first telescopic rod (20), a handle (21), a second telescopic rod (22), a sliding block (23), and a pulling rod (24). The fixed rod (19) is fixedly connected to the positioning frame (16) located on the right side. The first telescopic rod (20) is rotatably connected to the fixed seat (18) located on the right side. The output shaft of the first telescopic rod (20) is fixedly connected to the fixed rod (19). The first telescopic rod (20) is fixedly connected to the second telescopic rod (22). The output shaft of the second telescopic rod (22) is rotatably connected to the sliding block (23). The sliding block (23) is fixedly connected to the fixed seat (18) located on the left side. The pulling rod (24) is rotatably connected to the sliding block (23) and the positioning frame (16) located on the left side respectively. The handle (21) is fixedly connected to the first telescopic rod (20).

5. The eccentric rotary regulating valve according to claim 2, characterized in that, The docking block (10) has a docking groove on its left side, and the right side of the docking rod (11) slides in contact with the inner wall of the docking groove.

6. The eccentric rotary regulating valve according to claim 2, characterized in that, The right side of the docking frame (9) is provided with a blocking groove, and the left side of the blocking rod (12) slides in contact with the inner wall of the blocking groove.

7. The eccentric rotary regulating valve according to claim 3, characterized in that, On the side of the two fixed plates (14) that are close to each other, there are multiple positioning slots arranged at equal intervals. On the side of the two positioning frames (16) that are far apart from each other, there are positioning blocks fixedly installed. The positioning blocks slide in contact with the inner wall of the positioning slots.

8. The eccentric rotary regulating valve according to claim 1, characterized in that, A sealing gasket (25) is fixedly installed on the top of the docking seat (15), and the top of the sealing gasket (25) slides in contact with the bottom of the outer shell (1).

9. The eccentric rotary regulating valve according to claim 1, characterized in that, Sealing rings (8) are fixedly installed on the left side of the outer shell (1) and the right side of the pipe (7), and the two sealing rings (8) slide in contact with each other on the side closest to each other.

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