Tubular throttle valve

Abstract

The utility model discloses a tubular throttle valve which comprises a throttle valve body, one end of the throttle valve body is provided with a first valve hole, the other end of the throttle valve body is provided with a second valve hole, the top of the throttle valve body is provided with a third valve hole, the bottom of the throttle valve body is provided with a fourth valve hole, and the first valve hole and the fourth valve hole are connected through a first pipeline. The second valve hole and the third valve hole are connected through a second pipeline, the third valve hole is communicated with the first pipeline, the fourth valve hole is communicated with the second pipeline, the throttling valve achieves effective throttling and buffering of fluid through a Z-shaped flow channel structure formed by the first valve hole, the second valve hole, the third valve hole, the fourth valve hole, the first pipeline and the second pipeline, and meanwhile the tip end of the valve element is of a conical structure. By means of the design that the first valve hole and the second valve hole are located on the same axial lead, fluid flowing in and out is kept to flow coaxially, connection with an external pipeline is facilitated, other functional parts are allowed to be flexibly installed through the expansion design of the fourth valve hole, and specific requirements of different working conditions are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of welding device, concretely is a tubular throttle valve. BACKGROUND

[0002] Pipe welding equipment is widely used in aerospace, automobile manufacturing and precision machining fields, among which the stability and regulation capacity of fluid control system play a crucial role in the overall performance and welding quality of the equipment. The existing throttle valve adopts a fixed structure design, which exposes many deficiencies in actual use, such as low fluid regulation precision, unreasonable flow path and poor functional expandability. Traditional throttle valves are mostly simple linear flow channels or mechanical regulation modes, which are difficult to achieve high-precision regulation, especially in the case of stable and subtle control of cooling liquid or protective gas supply. At the same time, the unreasonable flow channel design can easily lead to turbulent flow or pressure fluctuation of the fluid, affecting the stability of the outlet fluid and thus the protection effect of the welding area. In addition, most of the existing throttle valves lack flexible expandability and cannot quickly adapt to complex working conditions. For example, when additional interfaces or functional expansion are needed, the equipment needs to be replaced or the pipeline needs to be redesigned, increasing the use cost and maintenance difficulty.

[0003] After searching, a tubular one-way throttle valve

application number: 202021414597.1, publication number: CN212775765U

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a tubular throttle valve.

[0005] A pipe throttling valve, characterized in that it comprises a throttling valve body, one end of the throttling valve body is provided with a valve hole one, the other end of the throttling valve body is provided with a valve hole two, the top of the throttling valve body is provided with a valve hole three, and the bottom of the throttling valve body is provided with a valve hole four.

[0006] The valve hole one and the valve hole four are connected through a pipeline one, the valve hole two and the valve hole three are connected through a pipeline two, the valve hole three is communicated with the pipeline one, and the valve hole four is communicated with the pipeline two.

[0007] Preferably, the inner walls of the valve hole one and the valve hole two are provided with threaded structures.

[0008] Through the above technical scheme, the threaded structure can effectively improve the connection strength of the pipeline and the throttling valve, while ensuring the sealing performance and preventing fluid leakage. The threaded structure also facilitates the disassembly and replacement of the pipeline, improving the convenience and operating efficiency of equipment maintenance.

[0009] Preferably, the outer part of the throttling valve body is designed as a hexagonal cross-section structure.

[0010] Through the above technical scheme, the hexagonal cross-section structure can provide higher torsional resistance and structural stability, effectively avoiding deformation in high-pressure or dynamic working environments. At the same time, the planar design of the hexagon facilitates the use of standard tools for installation and disassembly operations, thereby improving the efficiency of assembly and maintenance. In addition, the hexagonal structure further optimizes the stress distribution of the valve body, reduces local stress concentration, and prolongs the service life of the equipment.

[0011] Preferably, the top of the valve hole three is provided with an adjusting nut, and the adjusting nut is installed with a valve core.

[0012] Through the above technical scheme, the setting of the adjusting nut not only provides stable installation and precise limiting control for the valve core, but also realizes precise adjustment of the axial displacement of the valve core through the threaded structure. The valve core can be installed with an operating handle, and the handle can drive the valve core to move axially, thereby achieving precise control of fluid flow and achieving the purpose of throttling.

[0013] Preferably, the valve hole four can be installed with a one-way nut or other components.

[0014] Through the above technical scheme, the design of the valve hole four provides multi-functional expansion capability, and can install a one-way nut or other functional devices according to actual needs. For example, when a one-way nut is installed, it can achieve one-way flow control of fluid, effectively avoiding the influence of fluid backflow on system performance. Alternatively, when a pressure gauge is installed, the valve hole four can serve as an interface for system pressure detection. By installing a pressure gauge in the valve hole four, the fluid pressure change can be monitored in real time, which facilitates the operator to judge and adjust the equipment running state, thereby improving the safety and stability of system operation.

[0015] Preferably, the valve hole one, the valve hole two, the valve hole three, the valve hole four, the pipeline one and the pipeline two form a Z-shaped flow channel structure in the valve, and the fluid enters from the valve hole one, then passes through the pipeline one, the valve hole four, the pipeline two in turn, and finally flows out from the valve hole two.

[0016] Through the above technical scheme, the Z-shaped flow channel structure provides effective buffering for the pressure and velocity changes of the fluid during throttling, reduces the direct impact force of the fluid through the two turns in the flow path, and gradually dissipates the kinetic energy of the fluid in the path, thereby avoiding the situation that the fluid flows out at high pressure and high speed after throttling.

[0017] Preferably, the valve hole one and the valve hole two are on the same axis.

[0018] Through the above technical scheme, the inlet and outlet of the liquid can be ensured to be on the same axis, facilitating the butt joint with the external pipeline. This design reduces the deviation or bending when the equipment is connected with the external pipeline, thereby reducing the installation error and stress concentration in the connection of the external pipeline, and improving the stability and sealing performance of the pipeline system.

[0019] Preferably, the tip of the valve core is a conical structure and forms a conical surface with the valve hole three.

[0020] Through the above technical scheme, the conical tip of the valve core cooperates with the conical surface of the valve hole three, which can significantly improve the sealing performance. When the tip of the valve core is completely closed, the conical surface contact provides a larger contact area and higher unit sealing pressure, thereby effectively preventing fluid leakage and maintaining good sealing effect even under high pressure working conditions. On the other hand, the conical structure can reduce the resistance when the fluid flows through the tip of the valve core. Since the flow curve is smoother when the fluid passes through the conical passage, severe turbulence and energy loss are avoided, thereby reducing the pressure loss when the fluid passes through the throttle valve.

[0021] Compared with the prior art, the utility model has the following advantages:

[0022] 1. The tubular throttle valve realizes effective throttling and buffering of the fluid through the Z-shaped flow channel structure composed of the valve hole one, the valve hole two, the valve hole three, the valve hole four, the pipeline one and the pipeline two, and avoids the phenomenon that the outlet pressure of the fluid is too high or the flow is unstable after throttling. At the same time, the tip of the valve core adopts a conical structure and cooperates with the valve hole three to form a conical surface, which not only provides excellent sealing performance, but also effectively reduces the resistance when the fluid flows through and reduces energy loss.

[0023] 2. The tubular throttle valve maintains coaxial flow of the incoming and outgoing fluid through the design of the same axial line of valve hole one and valve hole two, facilitates connection with external pipeline, and the expansion design of valve hole four allows flexible installation of one-way nut, pressure gauge or other functional components to adapt to specific needs of different working conditions, thereby significantly improving the applicability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 is a sectional view of the present utility model;

[0025] Fig. 2 is a three-dimensional view of the present utility model.

[0026] In the figure: 101, valve hole one; 102, valve hole two; 103, valve hole three; 104, valve hole four; 201, adjusting nut; 202, valve core; 203, one-way nut. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0028] Please refer to Figs. 1-2 The present utility model provides a technical solution:

[0029] Specifically:

[0030] Embodiment 1

[0031] The valve hole four 104 is installed with the one-way nut 203, realizing the sealing effect of the valve hole four 104, preventing fluid from leaking from the valve hole four 104 or external substances from entering the valve body, thereby ensuring the integrity and operation safety of the system.

[0032] In the working process, the fluid enters from the valve hole one 101, reaches the valve hole four 104 through the pipeline one. Since the one-way nut 203 blocks the valve hole four 104, the fluid is forced to be guided to the pipeline two and finally flows out from the valve hole two 102. Combined with the Z-shaped flow channel structure of the present utility model, the flow distance of the fluid is prolonged when passing through the turning path of the pipeline one and the pipeline two, thereby playing a buffering role and avoiding direct high-speed ejection of the fluid at the outlet. At the same time, this path design reduces the sharp fluctuation of fluid pressure, ensuring smoother flow.

[0033] By adjusting the position of valve core 202, the flow area of ​​pipeline one can be flexibly controlled, thereby precisely regulating the flow and pressure entering pipeline two. Even if valve orifice four 104 is blocked, the regulating function can still achieve efficient fluid control and meet the system's precise requirements for flow and pressure.

[0034] The structural design of valve orifice 101 and valve orifice 102 being on the same axis has advantages. This layout optimizes the directionality of fluid inlet and outlet, facilitates connection with external pipelines, reduces stress concentration problems caused by installation errors, and improves the system's operating efficiency and long-term stability.

[0035] Example 2

[0036] Valve port 4 104 is equipped with an interface adapter for connecting to other pipelines or external devices, enabling flexible system expansion. The interface adapter connects to valve port 4 104 via threads, providing additional fluid inlet or outlet channels to meet the special requirements of complex operating conditions for fluid flow paths.

[0037] During operation, fluid enters through valve port 101 and flows through pipe 1 to valve port 104. After installing the interface adapter, the fluid can be diverted from valve port 104 to external pipes or used as an additional outlet to achieve multi-channel fluid distribution or mixing. Simultaneously, the buffering effect of the Z-shaped flow channel design reduces the fluid velocity upon entering the interface adapter, minimizing flow turbulence and ensuring the stability of the diversion or mixing process.

[0038] By adjusting the position of valve core 202, the flow area of ​​pipeline one can be flexibly controlled, thereby precisely regulating the flow and pressure entering pipeline two. Even if valve orifice four 104 is blocked, the regulating function can still achieve efficient fluid control and meet the system's precise requirements for flow and pressure.

[0039] In this embodiment, valve hole 101 and valve hole 102 are on the same axis, ensuring that the fluid inlet and outlet directions are consistent, facilitating the connection of the equipment with external pipelines, and reducing measurement errors caused by inconsistent pipeline installation angles.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tubular throttle valve, characterized in that, The throttle valve body includes a valve hole 1 (101) at one end, a valve hole 2 (102) at the other end, a valve hole 3 (103) at the top, and a valve hole 4 (104) at the bottom. Valve hole one (101) and valve hole four (104) are connected by pipe one, valve hole two (102) and valve hole three (103) are connected by pipe two, valve hole three (103) is connected to pipe one, and valve hole four (104) is connected to pipe two.

2. A tubular throttle valve according to claim 1, characterized in that: The inner walls of valve hole one (101) and valve hole two (102) are both provided with threaded structures.

3. A tubular throttle valve according to claim 1, characterized in that: The external design of the throttle valve body is a hexagonal cross-section structure.

4. A tubular throttle valve according to claim 1, characterized in that: The valve hole three (103) is provided with an adjusting nut (201) at the top, and the adjusting nut (201) is fitted with a valve core (202).

5. A tubular throttle valve according to claim 1, characterized in that: The valve hole four (104) can be fitted with a one-way nut (203).

6. A tubular throttle valve according to claim 1, characterized in that: The valve hole one (101), valve hole two (102), valve hole three (103), valve hole four (104), pipe one and pipe two form a Z-shaped flow channel structure inside the valve. After the fluid enters from valve hole one (101), it passes through pipe one, valve hole four (104) and pipe two in sequence, and finally flows out from valve hole two (102).

7. A tubular throttle valve according to claim 1, characterized in that: The valve hole one (101) and valve hole two (102) are on the same axis.

8. A tubular throttle valve according to claim 4, characterized in that: The tip of the valve core (202) is tapered and forms a tapered surface fit with the valve hole three (103).

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