A throttle valve

Abstract

The utility model discloses a throttle valve field's a throttle valve, including valve body, valve core subassembly and connecting assembly, the valve core subassembly sets up in the valve body, be equipped with import and export on the valve body, the import and the outlet all are equipped with high pressure pipe, high pressure pipe is connected with the pipeline through connecting assembly, connecting assembly includes pipe clamp, elastic part and fastening bolt, the pipe clamp swing installation is on high pressure pipe, elastic part sets up between pipe clamp and high pressure pipe, and fastening bolt is used for installing the pipeline, the utility model discloses the high pressure pipe is connected with the pipeline through using connecting assembly, and the connecting assembly includes pipe clamp and elastic part, and the impact of the pipe clamp and the pipeline junction is buffered to fluid through elastic part, thereby avoiding the pipeline's and throttle valve separation, ensure the leakproofness of pipeline and throttle valve, and elastic part can also buffer fluid, thereby reducing the damage of fluid to throttle valve, improve throttle valve service life.

Description

Technical Field

[0001] This utility model relates to the field of throttle valves, and more particularly to a throttle valve. Background Technology

[0002] The inlet and outlet of the throttle valve need to be connected to pipelines. Fluid enters the throttle valve from the pipeline and then enters another pipeline from the throttle valve. Chinese Patent CN114526347A discloses a hydraulic throttle device for an ultra-supercritical double reheat unit's ultra-high pressure steam inlet valve, including a fixed base, a rotating shaft, and a drive gear. A rotating plate is provided on the outer surface of the fixed shaft. Both the outer surface of the rotating plate and the outer surface of the fixed base have through holes. The rotating shaft is mounted on the fixed base, and a drive gear is located on the outer side of the rotating shaft, contacting the outer surface of the rotating plate. This ultra-supercritical double reheat unit's ultra-high pressure steam inlet valve hydraulic throttle device features a fixed base with a fixed shaft on it. A rotating plate is located on the outer side of the fixed shaft, allowing the rotating plate to rotate via the rotating shaft and drive gear. This allows adjustment of the through hole size. A fixed bracket and a clamping plate are provided on the outer surface of the pipeline. The clamping plate can be configured to move left and right via a threaded rod, facilitating easy installation and fixation of the device.

[0003] However, its throttling size is adjusted by external drive, resulting in poor sealing. At the same time, since the pipeline is a high-pressure oil circuit, the stress at its connection is large. Traditional bolt fixing can easily lead to pipe detachment, resulting in poor stability. Utility Model Content

[0004] The purpose of this utility model is to provide a throttle valve that uses a pipe clamp and a spring on the high-pressure pipe at the inlet and outlet to buffer the impact force of the fluid acting on the pipe clamp, thereby avoiding the impact of the fluid's impact force on the pipe connection.

[0005] To solve the above technical problems, the following technical solution is adopted: This utility model provides a throttle valve, including a valve body, a valve core assembly, and a connecting assembly; The valve core assembly is disposed in the valve body, the valve body is provided with an inlet and an outlet, and both the inlet and the outlet are provided with high-pressure pipes, which are connected to a pipeline through a connecting assembly; The connecting assembly includes a pipe clamp, an elastic element, and a fastening bolt. The pipe clamp is movably mounted on the high-pressure pipe. The elastic element is disposed between the pipe clamp and the high-pressure pipe to buffer the passing fluid. The fastening bolt is used to install the pipe.

[0006] Optionally, the valve core assembly includes a valve core and a valve stem. The valve core is a ball mechanism, and the valve core has a throttling orifice along the diameter direction. Fluid enters from the inlet, passes through the throttling orifice, and flows out from the outlet.

[0007] Optionally, the valve body has a spherical groove for installing the valve core and a valve stem through hole for installing the valve stem inside, the valve stem through hole extending from one end face of the valve body to the spherical groove.

[0008] Optionally, a bearing is provided in the valve stem through hole, and the bearing is installed in conjunction with the valve stem. The bearing facilitates the driving of the valve stem, and an external drive device controls the rotation angle and locking of the valve stem, thereby controlling the opening angle of the valve core.

[0009] Optionally, a sealing gasket is provided on one end face of the valve body where the valve stem through hole is formed, and the sealing gasket is provided with a through hole for the valve stem to pass through.

[0010] Optionally, the sealing gasket is an elastic structure, the through hole has an internal thread, and the valve stem has an external thread that mates with the internal thread. The meshing direction of the internal thread and the external thread is opposite to the opening direction of the valve core. When the valve core is opened, rotating the valve stem compresses the sealing gasket downwards relative to the valve stem, improving the sealing performance at that point.

[0011] Optionally, the high-pressure pipe end is provided with a limiting seal ring, the limiting seal ring is located inside the pipe clamp, one end of the elastic element is installed on the limiting seal ring, and the other end is installed on the inner end face of the pipe clamp.

[0012] Optionally, the pipe clamp has a threaded through hole that engages with the fastening bolt. One end of the fastening bolt extends into the pipe clamp for installing the pipe. The pipe is installed on the pipe clamp using the fastening bolt, and the pipe clamp is then installed on the high-pressure pipe. The elastic element on the pipe clamp reduces the impact of fluid on the pipe connection, thereby improving the sealing performance of the pipe installation.

[0013] Optionally, four fastening bolts are provided, and the four fastening bolts are evenly arranged circumferentially on the pipe clamp.

[0014] Optionally, the elastic element includes six springs, which are evenly arranged circumferentially on the outer wall of the high-pressure pipe.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: The throttle valve provided by this utility model connects the high-pressure pipe to the pipeline by using a connecting assembly. The connecting assembly includes a pipe clamp and an elastic element. The elastic element buffers the impact force of the fluid on the connection between the pipe clamp and the pipeline, thereby preventing the pipeline from separating from the throttle valve and ensuring the sealing of the pipeline and the throttle valve. The elastic element can also buffer the fluid, thereby reducing the damage of the fluid to the throttle valve and improving the service life of the throttle valve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the throttle valve in an embodiment of this utility model; Figure 2 This is a cross-sectional structural diagram of the throttle valve in an embodiment of this utility model; Figure 3 This is a schematic diagram of the pipe clamp structure in an embodiment of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the pipe clamp in an embodiment of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the valve body in an embodiment of this utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Valve body; 2. Valve stem; 3. Valve core; 4. Sealing gasket; 5. Spherical groove; 6. Valve stem through hole; 7. Bearing; 8. Throttling orifice; 9. Inlet; 10. Outlet; 11. High pressure pipe; 12. Pipe clamp; 13. Fastening bolt; 14. Spring; 15. Limiting seal ring; 16. Threaded through hole. Detailed Implementation

[0018] The technical solutions of the present invention 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 invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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. Example

[0020] This embodiment provides a throttle valve, including a valve body 1, a valve core assembly, and a connecting assembly. The valve core assembly is disposed inside the valve body 1 and is used to control the flow rate of the fluid passing through. The connecting assembly is installed at the inlet 9 and outlet 10 of the valve body 1 to buffer the impact of the incoming or outgoing fluid on the throttle valve, avoid damage to the throttle valve by the impact force, and at the same time stabilize the flow rate of the fluid, thereby avoiding inaccurate data collected when unstable fluid passes through the detection device.

[0021] like Figure 1 , Figure 5 As shown, the valve body 1 has a cuboid structure. A spherical groove 5 is provided in the middle of the valve body 1. The valve core assembly is installed in the spherical groove 5. An inlet 9 and an outlet 10 communicating with the spherical groove 5 are provided on two opposite sides of the valve body 1. A high-pressure pipe 11 is installed on both the inlet 9 and the outlet 10. Fluid enters and exits the throttle valve through the high-pressure pipe 11. The connecting assembly is installed on the high-pressure pipe 11.

[0022] like Figure 2 , Figure 4As shown, the connecting assembly includes a clamp 12 and an elastic element. In this embodiment, the elastic element is a spring 14. The clamp 12 is fitted onto the high-pressure pipe 11 and has a clearance fit with the high-pressure pipe 11, allowing it to move relative to the outer wall of the high-pressure pipe 11. A limiting seal ring 15 is provided at the end of the high-pressure pipe 11. The outer diameter of the limiting seal ring 15 is larger than that of the high-pressure pipe 11. The outer surface of the limiting seal ring 15 is in contact with the inner wall of the clamp 12 and can slide relative to the inner wall of the clamp 12. The spring 14 is disposed between the clamp 12 and the high-pressure pipe 11. One end of the spring 14 is fixedly mounted on the limiting seal ring 15, and the other end is fixedly mounted on the inner end face of the clamp 12. Six springs 14 are provided, and the six springs 14 are evenly spaced and arranged in opposite directions on the outer wall of the high-pressure pipe 11. One end of the clamp 12 is connected to the high-pressure pipe 11, and the other end is connected to a pipeline, through which fluid is connected, allowing the fluid to pass through a throttle valve.

[0023] like Figure 2 , Figure 3 As shown, the connecting assembly also includes fastening bolts 13 mounted on the pipe clamp 12. The pipe is connected to the pipe clamp 12 via the fastening bolts 13, thus connecting the pipe to the throttle valve. Four fastening bolts 13 are evenly spaced and circumferentially arranged on the threaded through holes 16 of the pipe clamp 12. The fastening bolts 13 are threaded into the threaded through holes 16. By screwing one end of the fastening bolt 13 into the pipe clamp 12, it acts on the pipe, thus installing the pipe on the pipe clamp 12. When fluid enters the pipe clamp 12 from the pipe, the pipe clamp 12 moves relative to the high-pressure pipe 11 towards the valve body 1. The spring 14 is stretched, thus buffering the stress of the fluid on the pipe clamp 12, and further buffering the fluid entering the throttle valve. When no fluid is flowing through it, the spring 14 rebounds, causing the pipe clamp 12 to return to its original shape. When fluid flows out of the throttle valve, the clamp 12 moves relative to the high-pressure pipe 11, moving away from the valve body 1. This compresses the spring 14, buffering the stress of the fluid on the clamp 12 and further buffering the outflowing fluid, making the flow smoother. Simultaneously, it prevents the fluid stress on the pipe from causing it to detach from the throttle valve and leak. The clamp 12 and its spring 14 ensure a stable connection between the pipe and the high-pressure pipe 11, preventing the pipe from detaching from the high-pressure pipe 11 due to fluid stress. The clamp 12 and its spring 14 not only guarantee a stable pipe connection and reduce the impact of fluid on the pipe connection seal, but also buffer the fluid, preventing excessively forceful fluid from entering the throttle valve and damaging it. The outflowing fluid is further buffered, resulting in a smoother flow into other equipment.

[0024] like Figure 1 , Figure 2 , Figure 5As shown, the valve core assembly includes a valve core 3 and a valve stem 2. The valve core 3 has a spherical structure and a throttling orifice 8 along its diameter. The valve core 3 is fitted with a spherical groove 5 on the valve body 1. A valve stem through-hole 6 extending to the top of the valve body 1 is provided at the top of the spherical groove 5, and the valve stem through-hole 6 is fitted with the valve stem 2. A bearing 7 is provided at the middle of the valve stem through-hole 6, and the bearing 7 is connected to the valve stem 2. By rotating the valve stem 2, the valve core 3 is rotated, thereby controlling the alignment angle between the throttling orifice 8 and the inlet 9 and outlet 10, thus controlling the fluid flow rate. A sealing gasket 4 is provided on the upper surface of the valve body 1. The sealing gasket 4 is an elastic structure and is fixedly installed on the upper surface of the valve body 1. The sealing gasket 4 has a through hole, through which the valve stem 2 passes. An internal thread is formed on the through hole of the sealing gasket 4, and an external thread that mates with the internal thread is formed on the valve stem 2. The engagement direction of the threaded connection between the valve stem 2 and the sealing gasket 4 is opposite to the opening direction of the valve core 3. When the valve core 3 is opened, due to the threaded connection between the valve stem 2 and the sealing gasket 4, the sealing gasket 4 will move downward relative to the valve stem 2. However, since the sealing gasket 4 is fixedly installed to the valve body 1, the sealing gasket 4 will be compressed downward, thereby improving the sealing effect. An external drive device is connected to the valve stem 2, which controls the rotation angle and locking.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A throttle valve, characterized in that, Includes valve body, valve core assembly, and connecting assembly; The valve core assembly is disposed in the valve body, the valve body is provided with an inlet and an outlet, and both the inlet and the outlet are provided with high-pressure pipes, which are connected to a pipeline through a connecting assembly; The connecting assembly includes a pipe clamp, an elastic element, and a fastening bolt. The pipe clamp is movably mounted on the high-pressure pipe. The elastic element is disposed between the pipe clamp and the high-pressure pipe to buffer the passing fluid. The fastening bolt is used to install the pipe.

2. The throttle valve according to claim 1, characterized in that, The valve core assembly includes a valve core and a valve stem. The valve core is a ball mechanism, and the valve core has a throttling orifice along the diameter direction. Fluid enters from the inlet, passes through the throttling orifice, and flows out from the outlet.

3. The throttle valve according to claim 2, characterized in that, The valve body has a spherical groove for installing the valve core and a valve stem through hole for installing the valve stem inside. The valve stem through hole extends from one end face of the valve body to the spherical groove.

4. The throttle valve according to claim 3, characterized in that, A bearing is provided inside the valve stem through hole. The bearing is installed in conjunction with the valve stem. An external drive device is connected to the valve stem to control the rotation angle and locking of the valve stem.

5. The throttle valve according to claim 3, characterized in that, A sealing gasket is provided on one end face of the valve body where the valve stem through hole is opened, and the sealing gasket has a through hole for the valve stem to pass through.

6. The throttle valve according to claim 5, characterized in that, The sealing gasket is an elastic structure, the through hole is provided with an internal thread, and the valve stem is provided with an external thread that mates with the internal thread. The meshing direction of the internal thread and the external thread is opposite to the opening direction of the valve core.

7. The throttle valve according to claim 1, characterized in that, The high-pressure pipe end is provided with a limiting seal ring, which is located inside the pipe clamp. One end of the elastic element is installed on the limiting seal ring, and the other end is installed on the inner end face of the pipe clamp.

8. The throttle valve according to claim 1, characterized in that, The pipe clamp has a threaded through hole, which is threadedly engaged with the fastening bolt. One end of the fastening bolt passes through the pipe clamp and is used to install the pipe.

9. The throttle valve according to claim 1, characterized in that, The fastening bolts are provided in four parts, which are evenly arranged circumferentially on the pipe clamp.

10. The throttle valve according to claim 1, characterized in that, The elastic element includes six springs, which are evenly arranged circumferentially on the outer wall of the high-pressure pipe.

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