Regulating valve with side-mounted hand wheel

Abstract

The utility model provides a regulating valve with a side-mounted hand wheel, which comprises a valve body, a fixed support, an actuating mechanism and a push rod, one end of the push rod is connected with the actuating mechanism, the other end of the push rod is connected with a valve core, and the valve core is positioned in the valve body; a side-mounted hand wheel is rotationally connected to the outer side of the fixing support, a limiting sleeve is arranged in the fixing support, a transmission mechanism is arranged between the limiting sleeve and the side-mounted hand wheel, the push rod penetrates through the limiting sleeve, and a limiting convex ring corresponding to the limiting sleeve is arranged on the push rod; the side-mounted hand wheel is rotated to drive the limiting sleeve to move up and down. In the utility model, when the opening degree of the valve needs to be quickly adjusted under special conditions, the side-mounted hand wheel is manually rotated, the side-mounted hand wheel drives the limiting sleeve to move upwards through the transmission mechanism when rotating, the limiting sleeve drives the push rod to move when moving upwards, and the push rod drives the valve core to move when moving upwards, so that the opening degree of the valve is adjusted to be larger or smaller according to requirements; and on-site working condition requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a regulating valve with a side-mounted handwheel. Background Technology

[0002] The working principle of a pneumatic control valve is as follows: When the control system provides an air supply signal to the pneumatic actuator, the air supply signal pushes the diaphragm in the actuator to compress the spring, which in turn drives the valve push rod to move, causing the valve core connected to the push rod to shift relative to the valve seat. This displacement changes the flow cross-sectional area between the valve core and the valve seat, thus regulating the fluid parameters. Pneumatic control valves are widely used in various industrial equipment for automatic control of pressure reduction and stabilization of gases, liquids, and steam.

[0003] However, in practical use, existing pneumatic control valves require manual adjustment of the side-mounted handwheel to control the valve opening and stabilize the flow rate in special situations or when the valve control element malfunctions and cannot be automatically controlled. This is necessary to prevent accidents. However, most existing pneumatic control valves lack handwheel adjustment functionality, and some are designed with the adjustment mechanism on the top, making them unsuitable for installation in confined spaces. This fails to meet the installation requirements of on-site conditions and also fails to meet the requirements for manual switching and adjustment. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a regulating valve with a side-mounted handwheel.

[0005] The purpose of this utility model is achieved through the following technical solution: a regulating valve with a side-mounted handwheel, comprising a valve body, a fixed bracket, an actuator, and a push rod. One end of the push rod is connected to the actuator, and the other end of the push rod is connected to the valve core, which is located in the valve body. The fixed bracket is located between the valve body and the actuator. A side-mounted handwheel is rotatably connected to the outside of the fixed bracket. A limit sleeve is provided inside the fixed bracket, and a transmission mechanism is provided between the limit sleeve and the side-mounted handwheel. The push rod passes through the limit sleeve, and a limit protrusion corresponding to the limit sleeve is provided on the push rod. The limit sleeve is moved up and down by rotating the side-mounted handwheel.

[0006] Preferably, the transmission mechanism includes a rotating shaft, a first bevel gear, and a second bevel gear, with the rotating shaft rotatably engaged with a fixed bracket; one end of the rotating shaft is connected to a side-mounted handwheel, and the other end of the rotating shaft is connected to the first bevel gear; the second bevel gear is rotatably mounted inside the fixed bracket, and the first bevel gear meshes with the second bevel gear; the limiting sleeve is threadedly engaged with the second bevel gear.

[0007] Preferably, the limiting sleeve is provided with an anti-rotation component, which has a through hole; the fixed bracket is provided with an anti-rotation sliding rod, which passes through the through hole on the anti-rotation component.

[0008] Preferably, the fixed bracket is provided with a bearing seat, and the rotating shaft is connected to the bearing seat.

[0009] Preferably, the rotating shaft is perpendicular to the push rod.

[0010] Preferably, the valve body is provided with a valve seat that cooperates with the valve core.

[0011] Preferably, a sealing sleeve is provided between the valve body and the fixed bracket, and the push rod passes through the sealing sleeve.

[0012] The beneficial effects of this utility model are:

[0013] 1. In this utility model, when a special situation requires a rapid increase in the valve opening, the side-mounted handwheel is manually rotated in one direction. When the side-mounted handwheel rotates, it drives the limiting sleeve to move upward through the transmission mechanism. When the limiting sleeve moves upward, it cooperates with the limiting protrusion on the push rod to drive the push rod to move upward. When the push rod moves upward, it drives the valve core to move, thereby rapidly increasing the valve opening and allowing the medium to flow through the valve quickly. This satisfies the need for rapid adjustment of the valve opening and avoids the occurrence of safety accidents.

[0014] 2. In this utility model, the side-mounted handwheel is installed on the side of the entire regulating valve. This side-mounted method facilitates the operator to rotate the side-mounted handwheel and also helps to reduce the overall height of the valve. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Valve body, 2. Fixed bracket, 3. Actuator, 4. Push rod, 4a. Limiting ring, 5. Bearing seat, 6. Side-mounted handwheel, 7. Rotating shaft, 8. First bevel gear, 9. Second bevel gear, 10. Limiting sleeve, 12. Anti-rotation component, 13. Anti-rotation slide bar, 14. Sealing sleeve, 15. Valve core, 16. Valve seat. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0018] like Figure 1As shown, a regulating valve with a side-mounted handwheel includes a valve body 1, a fixed bracket 2, an actuator 3, and a push rod 4. One end of the push rod 4 is connected to the actuator 3, and the other end of the push rod 4 is provided with a valve core 15, which is located in the valve body 1. A valve seat 16 that cooperates with the valve core 15 is provided inside the valve body 1. The fixed bracket 2 is located between the valve body 1 and the actuator 3. A side-mounted handwheel 6 is rotatably connected to the outside of the fixed bracket 2. A limit sleeve 10 is provided inside the fixed bracket 2. A transmission mechanism is provided between the limit sleeve 10 and the side-mounted handwheel 6. The push rod 4 passes through the limit sleeve 10, and a limit protrusion 4a corresponding to the limit sleeve 10 is provided on the push rod 4. Rotating the side-mounted handwheel 6 drives the limit sleeve 10 to move up and down.

[0019] In this invention, the actuator 3 drives the push rod 4 to move, and the movement of the push rod 4 causes the valve core 15 to move, thereby adjusting the valve opening. A through hole is provided in the limiting sleeve 10, through which the push rod 4 passes. The limiting protrusion 4a on the push rod 4 is located at the upper end of the limiting sleeve 10, and the outer diameter of the limiting protrusion is larger than the diameter of the through hole.

[0020] When a special situation requires a rapid increase in valve opening, the side-mounted handwheel 6 is manually rotated in one direction. As the handwheel 6 rotates, it drives the limit sleeve 10 upwards via a transmission mechanism. This upward movement of the limit sleeve 10, in turn, engages with the limit ring 4a on the push rod 4, causing the push rod 4 to move upwards. This upward movement of the push rod 4 then moves the valve core 15, thereby rapidly increasing the valve opening and allowing the medium to flow quickly through the valve. This satisfies the need for rapid valve opening increase and prevents safety accidents.

[0021] In this invention, the side-mounted handwheel 6 is installed on the side of the entire regulating valve. This side-mounted method facilitates the operator to rotate the side-mounted handwheel and also helps to reduce the overall height of the valve.

[0022] Specifically, the transmission mechanism includes a rotating shaft 7, a first bevel gear 8, and a second bevel gear 9. The rotating shaft 7 is rotatably connected to the fixed bracket 2. One end of the rotating shaft 7 is connected to the side-mounted handwheel 6, and the other end of the rotating shaft 7 is connected to the first bevel gear 8. The second bevel gear 9 is rotatably mounted inside the fixed bracket 2, and the first bevel gear 8 meshes with the second bevel gear 9. The limiting sleeve 10 is threadedly connected to the second bevel gear 9. When the side-mounted handwheel 6 is rotated, the side-mounted handwheel 6 drives the rotating shaft 7 to rotate, the rotating shaft 7 drives the first bevel gear 8 to rotate, and the first bevel gear 8 drives the second bevel gear 9 to rotate. When the second bevel gear 9 rotates, because the second bevel gear 9 is threadedly connected to the limiting sleeve 10, the rotation of the second bevel gear 9 drives the limiting sleeve 10 to move axially along the push rod 4, and the axial movement of the limiting sleeve 10 drives the push rod 4 to move.

[0023] The second bevel gear 9 has a threaded hole at its center, and the limiting sleeve 10 has an external thread on its outer side. The limiting sleeve 10 is positioned in the threaded hole at the center of the second bevel gear 9. A bearing is provided between the second bevel gear 9 and the fixed bracket 2, allowing the second bevel gear 9 to rotate within the fixed bracket 2.

[0024] The limiting sleeve 10 is equipped with an anti-rotation component 12, which has a through hole. The fixed bracket 2 contains an anti-rotation sliding rod 13 parallel to the push rod 4, which passes through the through hole in the anti-rotation component 12. The anti-rotation component 12 is fixedly connected to the limiting sleeve 10 by screws, thus restricting the limiting sleeve 10 to move only along the axial direction of the push rod 4 and preventing it from rotating.

[0025] A bearing seat 5 is provided on the fixed bracket 2, and the rotating shaft 7 is connected to the bearing seat 5. The rotating shaft 7 can rotate flexibly through the bearing seat 5.

[0026] In this embodiment, the rotating shaft 7 is perpendicular to the push rod 4.

[0027] The valve body 1 and the actuator 3 are respectively fixedly mounted at both ends of the fixed bracket 2. A sealing sleeve 14 is provided between the valve body 1 and the fixed bracket 2, and the push rod 4 passes through the sealing sleeve 14.

[0028] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A regulating valve with a side-mounted handwheel, characterized in that, The device includes a valve body, a fixed bracket, an actuator, and a push rod. One end of the push rod is connected to the actuator, and the other end is connected to the valve core, which is located within the valve body. The fixed bracket is located between the valve body and the actuator. A side-mounted handwheel is rotatably connected to the outside of the fixed bracket. A limit sleeve is installed inside the fixed bracket, and a transmission mechanism is installed between the limit sleeve and the side-mounted handwheel. The push rod passes through the limit sleeve, and a limit protrusion corresponding to the limit sleeve is provided on the push rod. Rotating the side-mounted handwheel drives the limit sleeve to move up and down.

2. A regulating valve with a side-mounted handwheel according to claim 1, characterized in that, The transmission mechanism includes a rotating shaft, a first bevel gear, and a second bevel gear. The rotating shaft is rotatably engaged with a fixed bracket. One end of the rotating shaft is connected to a side-mounted handwheel, and the other end of the rotating shaft is connected to the first bevel gear. The second bevel gear is rotatably mounted inside the fixed bracket, and the first bevel gear meshes with the second bevel gear. The limiting sleeve is threadedly engaged with the second bevel gear.

3. A regulating valve with a side-mounted handwheel according to claim 2, characterized in that, The limiting sleeve is provided with an anti-rotation component, which has a through hole; the fixed bracket is provided with an anti-rotation sliding rod, which passes through the through hole on the anti-rotation component.

4. A regulating valve with a side-mounted handwheel according to claim 2, characterized in that, The fixed bracket is equipped with a bearing seat, and the rotating shaft is connected to the bearing seat.

5. A regulating valve with a side-mounted handwheel according to claim 2, characterized in that, The rotating shaft is perpendicular to the push rod.

6. A regulating valve with a side-mounted handwheel according to claim 1, characterized in that, The valve body is provided with a valve seat that cooperates with the valve core.

7. A regulating valve with a side-mounted handwheel according to claim 1, characterized in that, A sealing sleeve is provided between the valve body and the fixed bracket, and the push rod passes through the sealing sleeve.

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