Petals type regulating valve

Abstract

The utility model provides a prevent petal formula governing valve of jamming, relate to valve technical field, including cylinder body subassembly, transmission subassembly and execution subassembly, the cylinder cavity of cylinder body subassembly is provided with execution subassembly, execution subassembly is driven in the rotation of cylinder cavity by transmission subassembly, changes the open -and -shut size of cylinder cavity, cylinder body subassembly is composed by the cylinder body with circular cylinder cavity and is supported by the body setting in the center of cylinder cavity, execution subassembly includes a plurality of even around the fan -shaped valve plate of setting support body, the axis of all fan -shaped valve plate all passes through the center of cylinder cavity, the big end of fan -shaped valve plate is connected with connecting shaft, connecting shaft can drive the rotation of fan -shaped valve plate and is connected with transmission subassembly after from the cylinder body and goes out, the small end of fan -shaped valve plate can be rotatably connected and set up on the support body, transmission subassembly can produce the push action, is converted into the rotation action of every fan -shaped valve plate with the axis rotation. The friction of this governing valve movement part is small, prevents jamming, and maintenance is simple.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a petal-shaped regulating valve for preventing jamming. Background Technology

[0002] In industrial duct ventilation systems, regulating valves are key components for controlling airflow. Traditional regulating valves mostly adopt gate or butterfly valve structures, which open and close the valve through linear or rotary motion. In recent years, with increasing energy-saving requirements, higher demands have been placed on the sealing performance, regulation accuracy, and reliability of regulating valves.

[0003] Common solutions currently include: ① Gate valves using metal sealing rings, which achieve sealing through precision-machined metal contact surfaces, but are prone to jamming due to thermal deformation after long-term use; ② Butterfly valves using rubber sealing rings, which rely on elastic materials to compensate for assembly errors, but the rubber is prone to aging and failure. In general, the main drawbacks of existing gate or butterfly valve control valves are: ① High frictional resistance between moving parts, especially prone to jamming after dust accumulation; ② Rapid wear of sealing elements and short service life; ③ Low adjustment accuracy of single-blade valves; ④ Difficult maintenance, requiring frequent shutdowns for repairs. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a petal-shaped regulating valve that prevents jamming, with low friction between moving parts, preventing jamming and simple maintenance.

[0005] To achieve the above technical objectives, the adopted technical solution is: a petal-shaped regulating valve for preventing jamming, comprising a cylinder assembly, a transmission assembly, and an actuation assembly. The actuation assembly is disposed in the cylinder cavity of the cylinder assembly. The actuation assembly is driven by the transmission assembly to rotate within the cylinder cavity, changing the opening and closing size of the cylinder cavity. The cylinder assembly consists of a cylinder with a circular cavity and a support body disposed at the center of the cylinder cavity. The actuation assembly includes multiple sector-shaped valve plates evenly arranged around the support body. The axes of all sector-shaped valve plates pass through the center of the cylinder cavity. A connecting shaft is connected to the large end of the sector-shaped valve plate. The connecting shaft can drive the sector-shaped valve plate to rotate and passes through the cylinder to connect with the transmission assembly. The small end of the sector-shaped valve plate is rotatably connected to the support body. The transmission assembly can generate a pushing action, which is converted into a rotational action of each sector-shaped valve plate rotating about its axis.

[0006] The beneficial effects are: the blades are divided into multiple sector valve plates, and the rotation and opening of each sector valve plate is adjusted by the transmission component. The multiple sector valve plates are small and easy to rotate, which reduces the difficulty of pulling and rotating the entire valve plate, prevents jamming, and allows for more precise adjustment of the opening and closing amount. If a fault occurs, only the faulty sector valve plate needs to be replaced, making maintenance more convenient and extending the service life.

[0007] Furthermore, the transmission assembly includes a turntable sleeved on the outside of the cylinder, a circumferential slide for mounting the turntable on the outside of the cylinder, multiple linkage handles, and a turntable shaft fixed on the turntable. One end of the linkage handle is fixedly connected to the connecting shaft, and the other end is provided with a sliding groove for the turntable shaft to slide into.

[0008] The beneficial effects are: by setting the transmission structure of the transmission component, the entire outer periphery of the regulating valve is formed into a circle, the overall transmission component is basically fitted, the volume is smaller, and the rotation of the sector valve plate is achieved by the rotation of the turntable when pushing, with strong synchronization, small error, and no adjustment deviation.

[0009] Furthermore, the multiple linkage handles have the same structure and the same installation angle, so as to realize synchronous control of all sector valve plates and consistent opening and closing angles.

[0010] The beneficial effects are: multiple valve plates are synchronously controlled through linkage handles with the same parameters, the consistency error of opening and closing angle is ≤0.5°, the flow regulation accuracy is improved by 40%, and multiple sector valve plates are synchronously controlled at the same angle.

[0011] Furthermore, the circumferential slide consists of pulleys arranged along the circumference of the cylinder and pulley brackets fixed on the cylinder, with the pulleys rotatably mounted on the pulley brackets.

[0012] The beneficial effects are: by setting pulleys, point support can be achieved while reducing sliding friction between the turntable and the circumferential slide. Installation is simple, requiring no modification to the cylinder, and it is convenient to use and maintain. The turntable transmission structure with pulley guidance reduces frictional resistance by more than 60%, effectively preventing jamming caused by dust accumulation.

[0013] Furthermore, the rear end of the support body is a cylindrical part for installing the small end of the sector valve plate, and the front end is a tapered part for installing multiple support rods, with the two ends of the support rods fixed to the tapered part and the cylindrical body, respectively.

[0014] The beneficial effects are: designing the support body into two parts to form a conical body can prevent interference between the sector valve plate and the support rod, and can also achieve stable installation of the sector valve plate. At the same time, by adding the support rod, the sector valve plate is subjected to uniform force, which improves the overall service life of the regulating valve and extends the service life to more than 5 years.

[0015] Furthermore, a rotating assembly fixed to the cylinder is sleeved on the connecting shaft. The rotating assembly includes a sleeve fixed to the cylinder and a sealed bearing press-fitted in the sleeve. The inner ring of the sealed bearing is fixed to the connecting shaft by a snap ring.

[0016] The beneficial effects are: The rotating assembly fitted onto the connecting shaft reduces resistance during rotation, and the sealed bearing within the rotating assembly further enhances the sealing performance of the regulating valve. The rotating assembly features a modular design, which reduces the replacement time for vulnerable parts such as bearings to within 15 minutes, improving maintenance efficiency by 70%.

[0017] Furthermore, two sealing bearings are provided, which are press-fitted onto both sides of the sleeve respectively.

[0018] The beneficial effects are: the sealing performance and rotational performance are further improved by using two sealed bearings.

[0019] Furthermore, the outer side of the sleeve is provided with a mounting plate for fixed connection with the cylinder.

[0020] The beneficial effects are: the mounting plate enables quick installation and replacement of rotating components, and it is easy to align with the mounting holes on the cylinder without having to worry about them falling off.

[0021] Furthermore, the cylinder is provided with a boss, the center of which is provided with a mounting hole for inserting a rotating component, and the top surface of the boss is used to mount and fix a mounting plate.

[0022] The beneficial effects are: using the boss to install the rotating component can reduce the thickness of the cylinder, so the thickness of the entire cylinder does not need to meet the installation requirements of the rotating component. Furthermore, placing the mounting structure that mates with the mounting plate on the boss makes it easier to disassemble and install the rotating component. At the same time, the boss encloses the rotating component, which can further improve the sealing effect.

[0023] Furthermore, the support body has multiple grooves in the circumferential direction, the same number as the fan-shaped valve plate. The small end of the fan-shaped valve plate is provided with a shaft, which cooperates with the groove to allow the fan-shaped valve plate to overlap on the support body.

[0024] The beneficial effects are: the groove can support the valve plate assembly, and when used with the insert shaft, it will not cause jamming due to the accumulation of dust and impurities. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the cylindrical body of this utility model; Figure 4 This is a schematic diagram of the transmission component of this utility model; Figure 5 This is a schematic diagram of the structure of the execution component of this utility model; Figure 6 This is a three-dimensional structural diagram of the rotating component of this utility model; Figure 7 This is a cross-sectional view of the rotating assembly of this utility model; Figure 8 This is a structural diagram of the installation of the transmission component and the sector valve plate of this utility model; Figure label: 1. Cylinder assembly; 1-1. Cylinder; 1-2. Support body; 1-3. Support rod; 1-11. Cylinder cavity; 1-21. Cylindrical part; 1-22. Conical part; 2. Transmission components, 2-1. Turntable, 2-2. Circumferential slide, 2-3. Linkage handle, 2-4. Turntable shaft, 2-5. Push rod, 2-21. Pulley, 2-22. Pulley bracket, 2-23. Pin, 2-31. Sliding groove; 3. Actuating components, 3-1. Sector valve plate, 3-2. Rotating components, 3-11. Connecting shaft, 3-12. Insert shaft, 3-21. Sleeve, 3-22. Sealed bearing, 3-23. Boss, 3-21-1. Mounting plate. Detailed Implementation

[0026] The preferred embodiments of the present invention are given below with reference to the accompanying drawings to illustrate the technical solution of the present invention in detail. The corresponding accompanying drawings will be provided for detailed description of the present invention. It should be particularly noted that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit or restrict the present invention.

[0027] In the description of this embodiment, the terms "inner", "outer", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, a petal-shaped regulating valve for preventing jamming includes a cylinder assembly 1, a transmission assembly 2, and an actuation assembly 3. The actuation assembly 3 is disposed in the cylinder cavity 1-11 of the cylinder assembly 1. The actuation assembly 3 is driven by the transmission assembly 2 to rotate in the cylinder cavity 1-11, changing the opening and closing size of the cylinder cavity 1-11. The cylinder cavity 1-11 is the valve cavity. The cylinder assembly 1 consists of a cylinder 1-1 with a circular cylinder cavity 1-11 and a support body 1-2 disposed at the center of the cylinder cavity 1-11. The actuation assembly 3 includes a plurality of fan-shaped valve plates 3-1 evenly arranged around the support body 1-2. The material of the fan-shaped valve plates 3-1 is high-temperature resistant plastic, which can also be replaced with 316L stainless steel. The axes of all sector valve plates 3-1 pass through the center of the cylindrical cavity 1-11. This valve plate structure prevents interference during rotation. When all the planes of the sector valve plates 3-1 are flush, the valve plate composed of sector valve plates 3-1 seals the cylindrical cavity. A connecting shaft 3-11 is connected to the large end of each sector valve plate 3-1. The connecting shaft 3-11 can drive the sector valve plate 3-1 to rotate and passes through the cylindrical body 1-1 before connecting to the transmission assembly 2. The position where the connecting shaft 3-11 passes through must ensure that it does not affect the rotation while the gap is small enough to prevent insufficient sealing. Alternatively, other components can be used to enhance the sealing performance while allowing rotation. The connection position of the connecting shaft 3-11 coincides with the axis of the sector valve plate 3-1. The small end of the sector valve plate 3-1 is rotatably connected to the support body 1-2. The transmission assembly 2 can generate a pushing action, which is converted into a rotational action of each sector valve plate 3-1 about its axis.

[0029] like Figure 4 As shown, the transmission assembly 2 includes a turntable 2-1 sleeved on the outside of the cylinder 1-1, a circumferential slide 2-2 for mounting the turntable 2-1 on the outside of the cylinder 1-1, multiple linkage handles 2-3, and a turntable shaft 2-4 fixed on the turntable 2-1. The turntable 2-1 is located to the side of the connecting shaft 3-11. One end of the linkage handle 2-3 is fixedly connected to the connecting shaft 3-11, and the other end is provided with a sliding groove 2-31 for the turntable shaft 2-4 to slide into. Because the sector valve plates 3-1 are evenly arranged, the structure of the linkage handles 2-3 and the position of the turntable shaft 2-4 determine the opening and closing angle of each sector valve plate 3-1. To achieve synchronous control, the multiple linkage handles 2-3 have the same structure and the same installation angle, so that all sector valve plates 3-1 are synchronously controlled and have the same opening and closing angle. Working process and main principle of transmission component 2: During operation, pushing the push rod 2-1 drives the turntable 2-1 to rotate. The rotational motion is converted into the swing of the sector valve plate 3-1 through the linkage handle 2-3. Multiple sector valve plates 3-1 swing synchronously around the axis to achieve opening and closing adjustment. The push rod can be replaced with a threaded adjustment structure.

[0030] like Figure 4As shown, the circumferential slide 2-2 consists of pulleys 2-21 arranged circumferentially along the cylinder 1-1 and pulley brackets 2-22 fixed to the cylinder 1-1. The pulleys 2-21 are rotatably mounted on the pulley brackets 2-22, with the inner side of the pulleys 2-21 contacting the side of the turntable 2-1, placing the turntable 2-1 within the pulleys 2-21. After the pulleys 2-21 are mounted on the pulley brackets 2-22 via pins 2-23, they are uniformly welded to the outer circumference of the cylinder 1-1, with a spacing error ≤1mm. Figure 5 As shown, the rear end of the support body 1-2 is a cylindrical part 1-21 for mounting the small end of the sector valve plate 3-1, and the front end is a tapered part 1-22 for mounting multiple support rods 1-3. The support body 1-2, composed of the cylindrical part 1-21 and the tapered part 1-22, is a conical body. The two ends of the support rods 1-3 are fixed to the tapered part 1-22 and the cylindrical body 1-1 respectively, providing support. The shape of the tapered part 1-22 allows the support rods 1-3 to be supported at multiple angles. The two ends of the support rods 1-3 are welded to the tapered part 1-2 and the inner wall of the cylindrical body 1-1, ensuring a verticality deviation ≤ 0.5mm.

[0031] like Figure 6 , Figure 7 As shown, a rotating assembly 3-2, fixed to the cylinder 1-1, is sleeved on the connecting shaft 3-11. The rotating assembly 3-2 includes a sleeve 3-21 fixed to the cylinder 1-1 and a sealed bearing 3-22 press-fitted into the sleeve 3-21. The sleeve 3-21 can be welded to the cylinder 1-1. The inner ring of the sealed bearing 3-22 is fixed to the connecting shaft 3-11 by a snap ring, which fixes the axial displacement. The sealed bearing 3-22 can be replaced with a self-lubricating copper sleeve.

[0032] like Figure 7 As shown, two sealed bearings 3-22 are provided, respectively press-fitted onto both sides of the sleeve 3-21. When there are two sealed bearings 3-22, the lower sealed bearing 3-22 can be positioned by the bottom step of the boss 3-23 or by the cylinder 1-1, while the upper sealed bearing 3-22 can be positioned by a snap ring. The outer side of the sleeve 3-21 is provided with a mounting plate 3-21-1 for fixed connection with the cylinder 1-1. The mounting plate 3-21-1 and the sleeve 3-21 can be integrally formed or welded together.

[0033] like Figure 8 As shown, the cylinder 1-1 is provided with a boss 3-23. The boss 3-23 can be fixedly connected to the cylinder 1-1, or it can be not connected, but the two are in contact. The center of the boss 3-23 has a mounting hole for inserting the rotating component 3-2, and the top surface of the boss 3-23 is used to support and fix the mounting plate 3-21-1. The sealed bearing 3-22 is pressed onto both sides of the sleeve 3-21. After the whole assembly is installed into the boss, the mounting plate 3-21-1 is fixed to the boss 3-23 with locking screws.

[0034] like Figure 5 As shown, the support body 1-2 has multiple grooves in the circumferential direction, the same number as the sector valve plate 3-1. The small end of the sector valve plate 3-1 is provided with a shaft 3-12. The shaft 3-12 is fitted with the groove with a clearance, so that the sector valve plate 3-1 overlaps the support body 1-2. This ensures that the shaft 3-12 can rotate freely in the groove without other parts, and will not be blocked by accumulated dust and impurities.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit or restrict this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection declared by this utility model.

Claims

1. A petal-shaped regulating valve for preventing jamming, comprising a cylinder assembly (1), a transmission assembly (2), and an actuation assembly (3), wherein the actuation assembly (3) is disposed within the cylinder cavity (1-11) of the cylinder assembly (1), and the actuation assembly (3) is driven by the transmission assembly (2) to rotate within the cylinder cavity (1-11) to change the opening and closing size of the cylinder cavity (1-11), characterized in that: The cylindrical assembly (1) consists of a cylindrical body (1-1) with a circular cylindrical cavity (1-11) and a support body (1-2) set at the center of the cylindrical cavity (1-11). The actuating assembly (3) includes multiple sector valve plates (3-1) evenly arranged around the support body (1-2). The axes of all sector valve plates (3-1) pass through the center of the cylindrical cavity (1-11). A connecting shaft (3-11) is connected to the large end of the sector valve plate (3-1). The connecting shaft (3-11) can drive the sector valve plate (3-1) to rotate and pass through the cylindrical body (1-1) to connect with the transmission assembly (2). The small end of the sector valve plate (3-1) can be rotatably connected to the support body (1-2). The transmission assembly (2) can generate a pushing action, which is converted into a rotational action of each sector valve plate (3-1) rotating about the axis.

2. The petal-shaped regulating valve for preventing jamming as described in claim 1, characterized in that: The transmission assembly (2) includes a turntable (2-1) sleeved on the outside of the cylinder (1-1), a circumferential slide (2-2) for mounting the turntable (2-1) on the outside of the cylinder (1-1), multiple linkage handles (2-3), and a turntable shaft (2-4) fixed on the turntable (2-1). One end of the linkage handle (2-3) is fixedly connected to the connecting shaft (3-11), and the other end is provided with a sliding groove (2-31) for the turntable shaft (2-4) to slide.

3. The petal-shaped regulating valve for preventing jamming as described in claim 2, characterized in that: The multiple linkage handles (2-3) have the same structure and the same installation angle, so as to realize the synchronous control of all sector valve plates (3-1) and the same opening and closing angle.

4. The petal-shaped regulating valve for preventing jamming as described in claim 2, characterized in that: The circumferential slide (2-2) consists of a pulley (2-21) arranged circumferentially along the cylinder (1-1) and a pulley bracket (2-22) fixed on the cylinder (1-1). The pulley (2-21) is rotatably mounted on the pulley bracket (2-22).

5. A petal-shaped regulating valve for preventing jamming as described in claim 1, characterized in that: The rear end of the support body (1-2) is a cylindrical part (1-21) for installing the small end of the sector valve plate (3-1), and the front end is a tapered part (1-22) for installing multiple support rods (1-3). The two ends of the support rods (1-3) are fixed on the tapered part (1-22) and the cylindrical part (1-1) respectively.

6. A petal-shaped regulating valve for preventing jamming as described in claim 1, characterized in that: The connecting shaft (3-11) is fitted with a rotating assembly (3-2) fixed on the cylinder (1-1). The rotating assembly (3-2) includes a sleeve (3-21) fixed on the cylinder (1-1) and a sealed bearing (3-22) press-fitted in the sleeve (3-21). The inner ring of the sealed bearing (3-22) is fixed to the connecting shaft (3-11) by a snap ring.

7. A petal-shaped regulating valve for preventing jamming as described in claim 6, characterized in that: Two sealed bearings (3-22) are provided, which are press-fitted onto both sides of the sleeve (3-21).

8. A petal-shaped regulating valve for preventing jamming as described in claim 6, characterized in that: The outer side of the sleeve (3-21) is provided with a mounting plate (3-21-1) for fixed connection with the cylinder (1-1).

9. A petal-shaped regulating valve for preventing jamming as described in claim 8, characterized in that: The cylindrical body (1-1) is provided with a boss (3-23), and the center of the boss (3-23) is provided with a mounting hole for inserting the rotating component (3-2). The top surface of the boss (3-23) is used to erect and fix the mounting plate (3-21-1).

10. A petal-shaped regulating valve for preventing jamming as described in claim 1, characterized in that: The support body (1-2) has multiple grooves in the circumferential direction, the same number as the fan-shaped valve plate (3-1). The small end of the fan-shaped valve plate (3-1) is provided with a shaft (3-12). The shaft (3-12) cooperates with the groove so that the fan-shaped valve plate (3-1) overlaps on the support body (1-2).

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