A high sealing low leakage regulating valve

Abstract

This utility model discloses a high-sealing, low-leakage regulating valve, including a valve body. A flange is located inside the valve body, and a handwheel is installed on the upper outer side of the flange. Bolt posts are fixed to the inner sides of the handwheel at both ends. Connecting posts are sleeved to the inner sides of the handwheel at both ends. A connecting rod is sleeved to the front end of each connecting post. Protrusions are fixed to the outer walls of both the connecting rod and the connecting post at their rear ends. When using this device in a space-constrained environment, the connecting posts and connecting rod can be moved to the inner side of the handwheel and the connecting rod to the inner side of the connecting post. The connecting rod is then rotated so that the bolt posts enter the threaded holes, and the position of the connecting rod is fixed. This shortens the handwheel structure to adapt to confined spaces, thus adapting to different installation environments.

Description

Technical Field

[0001] This utility model belongs to the technical field of high-sealing and low-leakage regulating valves, specifically relating to a high-sealing and low-leakage regulating valve. Background Technology

[0002] High-sealing, low-leakage control valves are devices used for precise control of fluid flow. Employing advanced sealing technology and structural design, they achieve excellent sealing performance under various operating conditions, effectively reducing fluid leakage. These control valves typically possess high-precision flow control capabilities, accurately adjusting fluid flow according to actual needs. They also exhibit good stability and reliability, adapting to different working environments and media requirements. Widely used in industries such as petroleum, chemical, power, and metallurgy, where high precision and sealing of fluid control are crucial, they ensure safe, stable, and efficient operation of the production process.

[0003] When using high-sealing, low-leakage control valves, the traditional round handwheel diameter is too large, which can prevent the control valve from being installed properly in environments with limited space. Therefore, the market needs a new device to solve the current problems. Utility Model Content

[0004] The purpose of this utility model is to provide a high-sealing, low-leakage regulating valve to solve the problem mentioned in the background art. When using the traditional high-sealing, low-leakage regulating valve, the diameter of the round handwheel is too large, which will cause the regulating valve to be unable to be installed normally in a space-constrained installation environment. Therefore, the market needs a new device to solve the current problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-sealing, low-leakage regulating valve, comprising a valve body, a flange disposed inside the valve body, a handwheel mounted on the upper outer side of the flange, bolt posts fixed at the inner sides of the left and right ends of the handwheel, sleeve posts sleeved at the inner sides of the left and right ends of the handwheel, a sleeve rod sleeved at the front end of the sleeve post, a protrusion fixed to the outer wall of both the sleeve rod and the sleeve post at the rear, a threaded hole disposed at the rear end of the sleeve rod, and a handle fixed at the front end of the sleeve rod.

[0006] Preferably, packing is provided inside the valve body, and a valve stem is provided at the upper part of the valve body, the valve stem controlling the movement of the valve core at the lower end.

[0007] Preferably, a valve seat is provided inside the valve body, and a guide vane is provided inside the left end of the valve body.

[0008] Preferably, flanges are provided at both ends of the valve body, and the flanges are connected to external pipelines.

[0009] Preferably, the handwheel is connected to the valve stem via a nut at its upper end. The handwheel controls the valve stem to rotate, causing the valve core at the lower end of the valve stem to move, and the center of the valve core is aligned with the center of the valve seat through hole inside the valve body.

[0010] Preferably, the valve core can move up and down. When the valve core moves downward, it can enter the through hole of the valve seat and fit tightly against the valve seat.

[0011] Preferably, the sleeve post is sleeved inside the handwheel, and the sleeve rod is sleeved inside the sleeve post.

[0012] Preferably, the sleeve rod is rotated to allow the bolt post to enter the internal position of the threaded hole.

[0013] Compared with the prior art, this utility model provides a high-sealing, low-leakage regulating valve, which has the following advantages:

[0014] 1. When using this device in an environment with limited installation space, the socket can be moved to the inside of the handwheel, the socket rod can be moved to the inside of the socket, and the socket rod can be rotated so that the bolt enters the threaded hole. The position of the socket rod is then fixed. This shortens the handwheel structure to adapt to narrow spaces, and can be adapted to different installation environments in this way.

[0015] 2. This device has a guide vane located inside the left end of the valve body. The arc-shaped structure of the guide vane can change the flow direction of the fluid, thereby reducing the impact force of the fluid on the valve core. In this way, the stability of the regulation can be improved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a high-sealing, low-leakage regulating valve according to the present invention.

[0017] Figure 2 This is a schematic diagram illustrating the working principle of a handwheel of a high-sealing, low-leakage regulating valve according to this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of a high-sealing, low-leakage regulating valve body according to the present invention.

[0019] Figure 4 This is a schematic cross-sectional view of the handwheel structure of a high-sealing, low-leakage regulating valve according to the present invention.

[0020] In the diagram: 1. Valve body; 2. Flange; 3. Valve stem; 4. Handwheel; 5. Socket; 6. Socket rod; 7. Handle; 8. Nut; 9. Guide vane; 10. Valve seat; 11. Valve core; 12. Packing; 13. Bolt post; 14. Threaded hole; 15. Protrusion. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. 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 without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The utility model provides, for example Figure 1-4 The high-sealing, low-leakage regulating valve shown includes a valve body 1, a flange 2 located inside the valve body 1, a handwheel 4 installed on the upper side of the flange 2, bolt posts 13 fixed at the left and right ends of the handwheel 4 at the inner side, sleeve posts 5 sleeved at the left and right ends of the handwheel 4 at the inner side, a sleeve rod 6 sleeved at the front end of the sleeve post 5, a protrusion 15 fixed at the rear side of both the sleeve rod 6 and the sleeve post 5, a threaded hole 14 provided at the rear end of the sleeve rod 6, and a handle 7 fixed at the front end of the sleeve rod 6.

[0025] In use, the operator turns the handwheel 4, which drives the valve stem 3 to rotate. The valve stem 3 converts the rotational motion into the linear lifting and lowering motion of the valve core 11. When the valve core 11 rises, the flow area between the valve core 11 and the valve seat 10 increases, and the flow rate of fluid through the valve increases. When the valve core 11 falls, the flow area between the valve core 11 and the valve seat 10 decreases, and the flow rate of fluid through the valve decreases. When the valve core 11 and the valve seat 10 are tightly fitted, the valve closes, preventing fluid from passing through.

[0026] like Figure 2 and Figure 4 As shown, a packing 12 is installed inside the valve body 1. A valve stem 3 is installed at the upper part of the valve body 1. The valve stem 3 controls the movement of the valve core 11 at its lower end. A valve seat 10 is installed inside the valve body 1. A guide plate 9 is installed at the left end of the valve body 1. Flanges 2 are installed at both ends of the valve body 1. The flanges 2 are connected to external pipelines. A handwheel 4 is connected to the valve stem 3 through a nut 8 at its upper end. The handwheel 4 controls the valve stem 3 to rotate, causing the valve core 11 at the lower end of the valve stem 3 to move. The center of the valve core 11 is aligned with the center of the through hole of the valve seat 10 inside the valve body 1. The valve core 11 can move up and down. When the valve core 11 moves downward, it can enter the through hole of the valve seat 10 and fit tightly with the valve seat 10. A sleeve post 5 is sleeved inside the handwheel 4. A sleeve rod 6 is sleeved inside the sleeve post 5. The sleeve rod 6 rotates to allow the bolt post 13 to enter the threaded hole 14.

[0027] When in an environment with limited installation space, the socket 5 can be moved to the inside of the handwheel 4, the socket rod 6 can be moved to the inside of the socket 5, and the socket rod 6 can be rotated so that the bolt post 13 enters the inside of the threaded hole 14. The position of the socket rod 6 is then fixed, thus shortening the structure of the handwheel 4 to adapt to the narrow space.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A high-sealing, low-leakage regulating valve, characterized in that, The valve includes a valve body (1), a flange (2) is provided inside the valve body (1), a handwheel (4) is installed on the outer side of the flange (2) at the upper position, bolts (13) are fixed at the left and right ends of the handwheel (4) at the inner position, sleeves (5) are sleeved at the left and right ends of the handwheel (4) at the inner position, a sleeve rod (6) is sleeved at the front end of the sleeve rod (5), a protrusion (15) is fixed on the outer wall of the sleeve rod (6) and the sleeve rod (5) at the rear position, a threaded hole (14) is provided at the rear end of the sleeve rod (6), and a handle (7) is fixed at the front end of the sleeve rod (6).

2. The high-sealing, low-leakage regulating valve according to claim 1, characterized in that: A packing (12) is provided inside the valve body (1), and a valve stem (3) is provided at the upper part of the valve body (1). The valve stem (3) controls the valve core (11) at the lower end to move.

3. The high-sealing, low-leakage regulating valve according to claim 1, characterized in that: A valve seat (10) is provided inside the valve body (1), and a guide vane (9) is provided inside the left end of the valve body (1).

4. The high-sealing, low-leakage regulating valve according to claim 1, characterized in that: Flanges (2) are provided at both ends of the valve body (1), and the flanges (2) are connected to external pipelines.

5. A high-sealing, low-leakage regulating valve according to claim 1, characterized in that: The handwheel (4) is connected to the valve stem (3) via the nut (8) at the upper end. The handwheel (4) controls the valve stem (3) to rotate, causing the valve core (11) at the lower end of the valve stem (3) to move. The center of the valve core (11) is aligned with the center of the through hole of the valve seat (10) inside the valve body (1).

6. A high-sealing, low-leakage regulating valve according to claim 5, characterized in that: The valve core (11) can move up and down. When the valve core (11) moves downward, it can enter the through hole of the valve seat (10) and fit tightly with the valve seat (10).

7. A high-sealing, low-leakage regulating valve according to claim 1, characterized in that: The sleeve post (5) is sleeved inside the handwheel (4), and the sleeve rod (6) is sleeved inside the sleeve post (5).

8. A high-sealing, low-leakage regulating valve according to claim 1, characterized in that: The sleeve rod (6) rotates to allow the bolt post (13) to enter the internal position of the threaded hole (14).

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