Connecting device for butterfly valve actuator

Abstract

The utility model relates to the technical field of butterfly valve actuators, in particular to a connecting device for a butterfly valve actuator, which comprises a butterfly valve main body, a valve rod, a fixed seat, an actuator mounting seat, a protective shell, a circular groove, a through groove, a limiting plate, a hydraulic rod and a side clamping plate, the valve rod is arranged on the inner side of the butterfly valve main body, and the fixed seat is arranged on the outer side of the butterfly valve main body. An actuator mounting seat is arranged above the fixing seat, a protective shell is arranged on one side of the actuator mounting seat, a circular groove is formed in the inner side of the actuator mounting seat, a through groove is formed in one side of the actuator mounting seat, a limiting plate is arranged above the fixing seat, a hydraulic rod is arranged on the inner side of the actuator mounting seat, and a side clamping plate is arranged at one end of the hydraulic rod. According to the utility model, through a multidirectional limiting mode, the dismounting operation can be carried out without the help of an external tool, the operation time consumption is low, the technical requirements on operators are low, the operators only need to align the mounting position, the dismounting operation steps are simple and convenient, and the practical value of the device is effectively enhanced.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve actuator technology, and in particular to a connecting device for butterfly valve actuators. Background Technology

[0002] A butterfly valve is a device that controls the flow of media in a pipeline by rotating a valve plate. It has a simple structure, opens and closes quickly, and has low flow resistance. It is widely used in industrial, municipal, and energy fields. The butterfly valve actuator is the key driving component of the butterfly valve. Its function is to drive the rotation of the butterfly valve plate to achieve the regulation, cut-off, or switching of the flow of media in the pipeline.

[0003] Most butterfly valve actuators are now directly welded to the butterfly valve. When damaged, the entire butterfly valve needs to be replaced, which increases the cost of use. On the other hand, detachable actuator connection structures are inconvenient to disassemble and assemble, often requiring operators to use external tools, which is time-consuming, labor-intensive, and difficult.

[0004] Therefore, to address the inconvenience of disassembling and replacing existing butterfly valve actuators, a connecting device for butterfly valve actuators can be designed. Through multi-directional limiting, disassembly and assembly can be performed without the need for external tools, reducing operation time and lowering the technical requirements for operators. Operators only need to align the device with the installation position, and the disassembly and assembly steps are simple and convenient, thereby effectively enhancing the practical value of the device. Utility Model Content

[0005] To overcome the problems of most butterfly valves being directly welded to them, requiring the entire butterfly valve to be replaced when damaged, thus increasing operating costs, and the inconvenience and time-consuming nature of detachable actuator connection structures, this utility model is proposed.

[0006] The technical solution of this utility model is as follows: a connecting device for a butterfly valve actuator, comprising a butterfly valve body, a valve stem, a butterfly valve disc, a convex plate, a fixed seat, an actuator mounting seat, a protective shell, a sleeve, a circular groove, a through groove, a limiting plate, a hydraulic rod, a side clamping plate, and a pressure plate. The valve stem is provided on the inner side of the butterfly valve body, and the butterfly valve disc is provided on the outer side of the valve stem. A convex plate is provided on the outer side of one end of the valve stem. A fixed seat is provided on the outer side of the butterfly valve body, and an actuator mounting seat is provided above the fixed seat. A protective shell is provided on one side of the actuator mounting seat, and a sleeve is provided on the inner side of the protective shell. A circular groove is provided on the inner side of the actuator mounting seat, and a through groove is provided on one side of the actuator mounting seat. A limiting plate is provided above the fixed seat, and a hydraulic rod is provided on the inner side of the actuator mounting seat. A side clamping plate is provided at one end of the hydraulic rod, and pressure plates are provided on both sides of the side clamping plate.

[0007] Preferably, by setting a fixed valve stem in the butterfly valve body, rotating the valve stem drives the butterfly valve disc to rotate, thereby flexibly adjusting the fluid flow inside the butterfly valve body. A convex plate defines the installation position of the sleeve, embedding the sleeve into the convex plate and one end of the valve stem, achieving the effect of rotating the sleeve to drive the valve stem to rotate synchronously. A through groove clarifies the installation position of the limiting plate, allowing the limiting plate to pass through the actuator mounting seat. Rotating the limiting plate within the circular groove initially connects and fixes the fixed seat and actuator mounting seat. The distance between the two sets of side clamps is adjusted by a telescopic hydraulic rod, causing the side clamps to press against the outer sides of the fixed seat and actuator mounting seat. A pressure plate then fixes both ends of the fixed seat and actuator mounting seat inside, thus encasing and protecting them. This achieves disassembly and assembly without the need for external tools, requiring low technical skills from operators. Operators only need to align the installation position, making the disassembly and assembly process simple and convenient, enhancing the practical value of the device.

[0008] Preferably, the valve stem and the butterfly valve body are rotatably connected, the valve stem passes through the butterfly valve body, the butterfly valve disc is located on the inner side of the butterfly valve body, two sets of symmetrical convex plates are arranged, and the fixed seat is located on the outer side of the valve stem. The valve stem and the fixed seat are rotatably connected.

[0009] Preferably, the sleeve is fitted and connected to the valve stem and the convex plate, two sets of circular grooves are symmetrically opened, the through grooves are connected to the circular grooves, two sets of limiting plates are symmetrically arranged, the through grooves are fitted and connected to the limiting plates, and two sets of hydraulic rods are symmetrically arranged.

[0010] Preferably, one end of the housing is provided with a rotating shaft, which is located on the top of the inner side of the protective housing. The rotating shaft and the protective housing are rotatably connected. A servo motor is provided on the top of the protective housing, and the output end of the servo motor is connected to the rotating shaft. A switch is provided on the top of the protective housing, and the switch is electrically connected to the servo motor.

[0011] Preferably, the upper surface of the fixed base is provided with a telescopic rod, the outer side of the telescopic rod is provided with a spring, one end of the telescopic rod is provided with a limit plate, the limit plate and the telescopic rod are rotatably connected to each other, one end of the spring is provided below the limit plate, the upper surface of the limit plate is provided with a connecting shaft, one end of the connecting shaft is provided with a rotating plate, and the rotating plate is fitted and connected to the through groove.

[0012] Preferably, a control button is provided on the outside of the actuator mounting base, and the control button is electrically connected to the hydraulic rod.

[0013] Preferably, the outer side of the fixing base is provided with a slot, the slots are symmetrically provided on both sides of the fixing base, and two sets of slots are symmetrically provided on each side. The inner side of the side clamp is provided with a pin, and two sets of pins are symmetrically provided. The pins are engaged with the slots.

[0014] The beneficial effects of this utility model are:

[0015] When installing the actuator, place the actuator mounting seat above the fixed seat, so that the sleeve is embedded in the protruding plate and one end of the valve stem. The installation position of the limiting plate is clearly defined through the through groove. The limiting plate passes through the actuator mounting seat. Rotate the limiting plate within the circular groove to initially connect and fix the fixed seat and actuator mounting seat. Adjust the distance between the two sets of side clamps using the telescopic hydraulic rod. Press the outside of the fixed seat and actuator mounting seat with the side clamps. Use the pressure plate to fix both ends of the fixed seat and actuator mounting seat inside, encasing and protecting them. Rotating the sleeve drives the valve stem to rotate synchronously, which in turn drives the butterfly valve disc to rotate, thus flexibly adjusting the fluid flow inside the butterfly valve body. This solves the problem that most butterfly valve actuators require complete replacement when damaged, increasing operating costs. Furthermore, detachable actuator connection structures are inconvenient and time-consuming to disassemble and assemble, thus enhancing the practical value of the device. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of a connecting device for a butterfly valve actuator according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the actuator mounting base of a connecting device for a butterfly valve actuator according to this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the protective housing of a connecting device for a butterfly valve actuator according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of a fixing seat for a connecting device for a butterfly valve actuator according to this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the side clamp of a connecting device for a butterfly valve actuator according to this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Butterfly valve body; 2. Valve stem; 3. Butterfly valve disc; 4. Protruding plate; 5. Fixed seat; 6. Actuator mounting seat; 7. Protective housing; 8. Sleeve; 801. Rotating shaft; 802. Servo motor; 803. Switch; 9. Circular groove; 10. Through groove; 11. Limiting plate; 1101. Telescopic rod; 1102. Spring; 1103. Connecting shaft; 1104. Rotating plate; 12. Hydraulic rod; 1201. Control button; 13. Side clamping plate; 1301. Slot; 1302. Locking pin; 14. Pressure plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1 and Figure 2 This utility model provides an embodiment: a connecting device for a butterfly valve actuator, including a butterfly valve body 1, a valve stem 2, a butterfly valve disc 3, a convex plate 4, a fixed seat 5, an actuator mounting seat 6, a protective shell 7, a sleeve 8, a circular groove 9, a through groove 10, a limiting plate 11, a hydraulic rod 12, a side clamping plate 13, and a pressure plate 14. The valve stem 2 is disposed on the inner side of the butterfly valve body 1, and the valve stem 2 is rotatably connected to the butterfly valve body 1, passing through the butterfly valve body 1. The butterfly valve disc 3 is disposed on the outer side of the valve stem 2, located on the inner side of the butterfly valve body 1. A convex plate 4 is disposed on the outer side of one end of the valve stem 2, with two sets of convex plates 4 symmetrically arranged. A fixed seat 5 is disposed on the outer side of the butterfly valve body 1, located on the outer side of the valve stem 2, and the valve stem 2 is connected to the fixed seat 5. The actuator mounting base 6 is provided above the fixed base 5. A protective shell 7 is provided on one side of the actuator mounting base 6. A sleeve 8 is provided inside the protective shell 7. The sleeve 8 is fitted and connected to the valve stem 2 and the protruding plate 4. A circular groove 9 is provided on the inner side of the actuator mounting base 6. Two sets of circular grooves 9 are symmetrically provided. A through groove 10 is provided on one side of the actuator mounting base 6. The through groove 10 is connected to the circular groove 9. A limit plate 11 is provided above the fixed base 5. Two sets of limit plates 11 are symmetrically provided. The through groove 10 is fitted and connected to the limit plate 11. A hydraulic rod 12 is provided inside the actuator mounting base 6. Two sets of hydraulic rods 12 are symmetrically provided. A side clamping plate 13 is provided at one end of the hydraulic rod 12. Pressure plates 14 are provided on both sides of the side clamping plate 13.

[0024] Please see Figure 2 and Figure 3 In this embodiment, a rotating shaft 801 is provided at one end of the housing 8. The rotating shaft 801 is located on the top of the inner side of the protective housing 7. The rotating shaft 801 and the protective housing 7 are rotatably connected to each other. A servo motor 802 is provided on the top of the protective housing 7. The output end of the servo motor 802 is connected to the rotating shaft 801. A switch 803 is provided on the top of the protective housing 7. The switch 803 is electrically connected to the servo motor 802. By pressing the switch 803, the operation of the servo motor 802 can be flexibly controlled. The servo motor 802 drives the rotating shaft 801 to rotate. Rotating the rotating shaft 801 drives the housing 8 to rotate. Rotating the housing 8 drives the valve stem 2 to rotate, thereby realizing the effect of rotating the valve stem 2 to drive the butterfly valve disc 3 to rotate, flexibly adjusting the fluid flow inside the butterfly valve body 1.

[0025] Please see Figure 1 and Figure 4In this embodiment, a telescopic rod 1101 is provided on the upper surface of the fixed base 5, and a spring 1102 is provided on the outer side of the telescopic rod 1101. A limiting plate 11 is provided at one end of the telescopic rod 1101, and the limiting plate 11 and the telescopic rod 1101 are rotatably connected. One end of the spring 1102 is located below the limiting plate 11. A connecting shaft 1103 is provided on the upper surface of the limiting plate 11, and a rotating plate 1104 is provided at one end of the connecting shaft 1103. The rotating plate 1104 is fitted into the through groove 10. The limiting plate 11 is supported by the elastic limit of the spring 1102. Pressing the rotating plate 1104 causes the telescopic rod 1101 to retract, causing the limiting plate 11 to press down on the spring 1102. 102. Move the limiting plate 11 into the circular groove 9. Connect the fixed rotating plate 1104 with the connecting shaft 1103. Rotate the rotating plate 1104 to drive the limiting plate 11 to rotate synchronously, thereby driving the limiting plate 11 to rotate in the circular groove 9, so that the limiting plate 11 can flexibly connect the fixed seat 5 and the actuator mounting seat 6. The actuator mounting seat 6 is provided with a control button 1201 on the outside. The control button 1201 is electrically connected to the hydraulic rod 12. By pressing the control button 1201, a running command is sent to the hydraulic rod 12. The extension and retraction of the hydraulic rod 12 drives the adjustment of the distance between the two sets of side clamps 13, thereby flexibly driving the side clamps 13 to press the fixed seat 5 and the outside of the actuator mounting seat 6.

[0026] Please see Figure 4 and Figure 5 In this embodiment, a slot 1301 is provided on the outer side of the fixed base 5. The slots 1301 are symmetrically provided on both sides of the fixed base 5, and two sets of slots 1301 are symmetrically provided on each side. A locking post 1302 is provided on the inner side of the side clamping plate 13. Two sets of locking posts 1302 are symmetrically provided. The locking posts 1302 are fitted and connected with the slots 1301. When the side clamping plate 13 presses the fixed base 5 and the actuator mounting base 6, the locking posts 1302 are embedded in the slots 1301, further connecting the fixed base 5 and the actuator mounting base 6, thus preventing axial displacement of the fixed base 5 and the actuator mounting base 6.

[0027] When connecting and installing the actuator, place the actuator mounting base 6 on the fixed base 5. Before that, rotate the rotating plate 1104 to drive the limiting plate 11 to rotate synchronously, so that the limiting plate 11, the rotating plate 1104 and the through groove 10 correspond in position.

[0028] When the actuator mounting base 6 and the fixed base 5 are combined, the limiting plate 11 and the rotating plate 1104 pass through the through groove 10, and at the same time, one end of the valve stem 2 and the protruding plate 4 are embedded into the sleeve 8.

[0029] Subsequently, pressing the rotating plate 1104 on the connecting shaft 1103 causes the limiting plate 11 to move down. The limiting plate 11 presses down on the spring 1102, causing the telescopic rod 1101 to retract and move the limiting plate 11 into the circular groove 9. Rotating the rotating plate 1104 drives the limiting plate 11 to rotate, causing the limiting plate 11 to rotate in the circular groove 9, and pressing the actuator mounting base 6 through the limiting plate 11.

[0030] Then, press the control button 1201 to send a retraction command to the hydraulic rod 12. The hydraulic rod 12 retracts to bring the side clamping plate 13 closer together, so that the side clamping plate 13 clamps the actuator mounting seat 6 and the fixed seat 5 on the outside. At the same time, the clamping post 1302 is inserted into the clamping groove 1301, and the pressure plate 14 presses the actuator mounting seat 6 and the fixed seat 5 together.

[0031] When using the butterfly valve, press switch 803 to control the servo motor 802 to run. The servo motor 802 on the protective housing 7 drives the rotating shaft 801 to rotate. Rotating the rotating shaft 801 drives the housing 8 to rotate. Rotating the housing 8 drives the valve stem 2 to rotate. Rotating the valve stem 2 drives the butterfly valve disc 3 to rotate synchronously. Rotating the butterfly valve disc 3 adjusts the fluid flow rate inside the butterfly valve body 1.

[0032] When disassembling the actuator, press the control button 1201 to send an extension command to the hydraulic rod 12. The hydraulic rod 12 extends to increase the distance between the side clamps 13. Then, rotate the rotating plate 1104 to move the limiting plate 11 to the position corresponding to the through groove 10. At this time, the spring 1102 extends to support the limiting plate 11 through the actuator mounting base 6. Finally, remove the actuator mounting base 6 from the fixed base 5.

[0033] Through the above steps, by setting the valve stem 2 to be fixed in the butterfly valve body 1, rotating the valve stem 2 drives the butterfly valve disc 3 to rotate, thereby flexibly adjusting the fluid flow inside the butterfly valve body 1. The installation position of the sleeve 8 is defined by the convex plate 4, and the sleeve 8 is embedded into the convex plate 4 and one end of the valve stem 2, thereby achieving the effect of rotating the sleeve 8 to drive the valve stem 2 to rotate synchronously. The installation position of the limiting plate 11 is defined by the through groove 10, so that the limiting plate 11 passes through the actuator mounting seat 6. The limiting plate 11 is rotated in the circular groove 9, so that the limiting plate 11 initially connects and fixes the fixed seat 5 and the actuator mounting seat 6. The distance between the two sets of side clamps 13 is adjusted by the telescopic hydraulic rod 12, so that the side clamps 13 press the outside of the fixed seat 5 and the actuator mounting seat 6. The pressure plate 14 is used to fix the two ends of the fixed seat 5 and the actuator mounting seat 6 inside, thereby wrapping and protecting the fixed seat 5 and the actuator mounting seat 6 inside. Therefore, there is no need to use external tools for disassembly and assembly, the technical requirements for operators are low, and operators only need to align the installation position. The disassembly and assembly operation steps are simple and convenient.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A connecting device for butterfly valve actuators, comprising a butterfly valve body (1), a valve stem (2), a butterfly valve disc (3), characterized in that: The utility model also includes convex board (4), fixed seat (5), executor mounting seat (6), protective shell (7), cover shell (8), round groove (9), through groove (10), limiting plate (11), hydraulic rod (12), side clamping plate (13) and presser plate (14), the inside of butterfly valve body (1) is provided with valve stem (2), the outside of valve stem (2) is provided with butterfly valve petal (3), the outside of one end of valve stem (2) is provided with convex board (4), the outside of butterfly valve body (1) is provided with fixed seat (5), the top of fixed seat (5) is provided with executor mounting seat (6), one side of executor mounting seat (6) is provided with protective shell (7), the inside of protective shell (7) is provided with cover shell (8), the inside of executor mounting seat (6) is provided with round groove (9), one side of executor mounting seat (6) is provided with through groove (10), the top of fixed seat (5) is provided with limiting plate (11), the inside of executor mounting seat (6) is provided with hydraulic rod (12), one end of hydraulic rod (12) is provided with side clamping plate (13), both sides of side clamping plate (13) are provided with presser plate (14).

2. A connecting device for butterfly valve actuators according to claim 1, characterized in that: Valve stem (2) and butterfly valve body (1) are rotatably connected, valve stem (2) is arranged through butterfly valve body (1), butterfly valve petal (3) is arranged on the inside of butterfly valve body (1), two groups of convex board (4) are symmetrically arranged, fixed seat (5) is arranged on the outside of valve stem (2), valve stem (2) and fixed seat (5) are rotatably connected.

3. The connecting device for butterfly valve actuators according to claim 1, characterized in that: Cover shell (8) is embedded with valve stem (2) and convex board (4), two groups of round grooves (9) are symmetrically arranged, through groove (10) is connected with round groove (9), two groups of limiting plates (11) are symmetrically arranged, through groove (10) is embedded with limiting plate (11), two groups of hydraulic rods (12) are symmetrically arranged.

4. The connecting device for butterfly valve actuators according to claim 1, characterized in that: One end of cover shell (8) is provided with rotating shaft (801), rotating shaft (801) is arranged at the top of the inside of protective shell (7), rotating shaft (801) and protective shell (7) are rotatably connected, the top of protective shell (7) is provided with servo motor (802), the output end of servo motor (802) is connected with rotating shaft (801), the top of protective shell (7) is provided with switch (803), switch (803) is electrically connected with servo motor (802).

5. The connecting device for butterfly valve actuators according to claim 1, characterized in that: The upper surface of fixed seat (5) is provided with telescopic rod (1101), the outside of telescopic rod (1101) is provided with spring (1102), one end of telescopic rod (1101) is provided with limiting plate (11), limiting plate (11) and telescopic rod (1101) are rotatably connected, one end of spring (1102) is arranged below limiting plate (11), the upper surface of limiting plate (11) is provided with connecting shaft (1103), one end of connecting shaft (1103) is provided with rotating plate (1104), rotating plate (1104) is embedded with through groove (10).

6. The connecting device for butterfly valve actuators according to claim 1, characterized in that: The outside of executor mounting seat (6) is provided with control button (1201), control button (1201) and hydraulic rod (12) are electrically connected.

7. The connecting device for butterfly valve actuators according to claim 1, characterized in that: The outer side of the fixing base (5) is provided with a clamping groove (1301), the clamping groove (1301) is symmetrically provided on both sides of the fixing base (5), two groups of clamping grooves (1301) are symmetrically provided on each side, the inner side of the side clamping plate (13) is provided with a clamping column (1302), two groups of clamping columns (1302) are symmetrically provided, and the clamping column (1302) is connected with the clamping groove (1301) in a clamping manner.

Images