Throttle valve fluid flow control mechanism

Abstract

The utility model relates to the technical field of throttle valves, and discloses a throttle valve fluid flow control mechanism, two ends of a valve body are provided with input and output interfaces, a circulation channel is arranged in the valve body, and the inner wall of the channel is provided with staggered seals. A mechanical control assembly is arranged beside one set of sealing openings and comprises a guide sleeve, a nut and a valve rod channel. And the lower part of the valve rod extends into the channel and is provided with a mechanical seal head, and the top end of the valve rod is provided with a knob. By combining the combined action of the mechanical control assembly and the micro air cylinder, control in two modes is met, precise control over the sectional area of a fluid channel is achieved, the precision and the response speed of flow adjustment are remarkably improved, and the requirements of an industrial automatic control system with the high precision and high response requirements are met. The control mode of the knob and the micro air cylinder is adopted, so that flow adjustment is more visual and convenient, the operation difficulty is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of throttle valves, in particular to a throttle valve fluid flow control mechanism. Background Art

[0002] Throttle valves are important flow control components in hydraulic, pneumatic, and fluid control systems. They control flow velocity by varying the cross-sectional area of ​​the fluid passage through the valve, thereby regulating flow. Throttle valves are widely used in various mechanical equipment and industrial systems to control pressure, flow, or liquid level.

[0003] Traditional throttle valves often rely on a single mechanical structure to open and close the fluid channel, thereby regulating flow. While this single mechanical adjustment method can meet basic flow control needs to a certain extent, it suffers from limited adjustment accuracy, slow response speed, and complex operation. This is particularly difficult to achieve in industrial automation control systems that require high precision and high response time.

[0004] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop a throttle valve fluid flow control mechanism. Utility Model Content

[0005] The purpose of the utility model is to provide a throttle valve fluid flow control mechanism to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A technical solution for a throttle valve fluid flow control mechanism, comprising a valve body, with an input interface and an output interface respectively provided at both ends of the valve body, a circulation channel provided in the valve body, seals provided on the relative inner walls of the circulation channel, and two sets of seals are staggered, one set of the seals having a mechanical control component provided on the opposite side, the mechanical control component comprising a guide sleeve embedded in the valve body, a nut installed on the top of the guide sleeve, a valve stem channel provided in the guide sleeve, a valve stem being threadedly connected to the inner thread of the nut, the lower part of the valve stem extending into the valve stem channel, and a mechanical head provided, and a knob installed on the top of the valve stem.

[0008] As a preferred technical solution, a micro cylinder is embedded and installed on the other sealing port relative to the valve body, and a pneumatic sealing head is installed on the output end of the micro cylinder.

[0009] As a preferred technical solution, the pneumatic sealing head and the mechanical sealing head are both matched with the sealing.

[0010] As a preferred technical solution, the valve stem is slidably connected to the guide sleeve, and a plurality of ring grooves are provided on the surface of the valve stem located in the valve stem channel, and rubber rings are installed in the ring grooves.

[0011] As a preferred technical solution, both the mechanical seal head and the pneumatic seal head are made of highly wear-resistant and corrosion-resistant materials to increase the smoothness and hardness of their sealing surfaces.

[0012] As a preferred technical solution, the sealing contact surface is provided with a rubber layer and is made of an elastic material, which can automatically adjust its shape when subjected to pressure, thereby effectively preventing fluid leakage.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model is a throttle valve fluid flow control mechanism, which satisfies two control modes by combining the joint action of a mechanical control component and a micro cylinder, thereby achieving precise control of the cross-sectional area of ​​the fluid channel, significantly improving the accuracy and response speed of flow regulation, and meeting the needs of industrial automation control systems with high precision and high response requirements.

[0015] The control method of knob and micro cylinder makes flow adjustment more intuitive and convenient, reduces operation difficulty and improves work efficiency.

[0016] Both the mechanical and pneumatic sealing heads are made of highly wear-resistant and corrosion-resistant materials, and are equipped with sealing contact surfaces made of rubber layers and elastic materials, which effectively prevents fluid leakage and improves the overall sealing performance of the equipment.

[0017] The structure is reasonably designed and the components are closely matched, which enables long-term stable operation, reduces the frequency of maintenance and replacement, and reduces the cost of use.

[0018] In summary, the utility model is superior to traditional throttle valves in terms of adjustment accuracy, response speed, operation convenience, sealing performance, durability and stability, and has high application value and market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a throttle valve fluid flow control mechanism;

[0020] Figure 2 It is an isometric structural diagram of a throttle valve fluid flow control mechanism;

[0021] Figure 3 This is a schematic diagram of the internal cross-sectional structure of a throttle valve fluid flow control mechanism.

[0022] In the accompanying drawings: 1. Valve body; 11. Input interface; 12. Output interface; 13. Seal; 21. Guide sleeve; 22. Nut; 23. Valve stem channel; 24. Valve stem; 241. Ring groove; 242. Mechanical head; 25. Knob; 26. Rubber ring; 3. Micro cylinder; 31. Pneumatic head. DETAILED DESCRIPTION

[0023] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions, and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0024] like Figure 1 、 Figure 2 and Figure 3 As shown, the present invention provides a technical solution for a throttle valve fluid flow control mechanism. The mechanism comprises a valve body 1, with an input port 11 and an output port 12 provided at either end for fluid input and output. A flow channel is provided within the valve body 1, with seals 13 provided on opposing inner walls of the flow channel. Two sets of seals 13 are staggered to enable opening and closing of the fluid channel.

[0025] A mechanical control assembly is installed on the opposite side of one set of seals 13. This assembly includes a guide sleeve 21 embedded in the valve body 1, with a nut 22 mounted on top. A valve stem passage 23 is defined within the guide sleeve 21. A valve stem 24 is threadedly connected to the nut 22. The lower portion of the valve stem 24 extends into the valve stem passage 23 and is fitted with a mechanical seal 242. A knob 25 is mounted on the top of the valve stem 24. Rotating the knob 25 moves the valve stem 24 up and down, thereby driving the mechanical seal 242 into or out of contact with the seal 13, opening and closing the fluid passage.

[0026] A micro-cylinder 3 is embedded in the valve body 1 opposite the other seal 13, and a pneumatic seal 31 is installed at the output end of the micro-cylinder 3. By controlling the expansion and contraction of the micro-cylinder 3, the pneumatic seal 31 can be driven to contact or separate from the corresponding seal 13, realizing another way to control the fluid channel.

[0027] To ensure a good seal, both the pneumatic seal 31 and the mechanical seal 242 are made of highly wear-resistant and corrosion-resistant materials to enhance the smoothness and hardness of their sealing surfaces. Furthermore, the contact surface of the seal 13 is provided with a rubber layer and is made of an elastic material that automatically adjusts its shape when subjected to pressure, effectively preventing fluid leakage.

[0028] In addition, the valve stem 24 is slidably connected to the guide sleeve 21 , and a plurality of ring grooves 241 are provided on the surface of the valve stem 24 located in the valve stem channel 23 . Rubber rings 26 are installed in the ring grooves 241 to increase the sealing between the valve stem 24 and the guide sleeve 21 .

[0029] During operation, rotating knob 25 drives the valve stem 24 and mechanical seal 242 up and down, thereby controlling the opening and closing of the fluid channel. Simultaneously, controlling the expansion and contraction of micro-cylinder 3 drives pneumatic seal 31 into or out of contact with seal 13, achieving another method of controlling the fluid channel. By combining the mechanical control assembly with the micro-cylinder, this throttle valve fluid flow control mechanism achieves precise control of the cross-sectional area of ​​the fluid channel, significantly improving the accuracy and response speed of flow regulation.

[0030] In summary, the throttle valve fluid flow control mechanism of the utility model has the advantages of high adjustment accuracy, fast response speed, convenient operation, good sealing performance, high durability and stability, and has high application value and market prospects.

[0031] The working principle and use process of the utility model: After the utility model is installed, it works according to the above implementation method until all working steps are completed.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0035] While the embodiments described above are based on the present invention, these embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Clearly, many modifications and variations are possible based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better utilize the present invention and its modifications and uses. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A throttle valve fluid flow control mechanism, characterized in that: The invention comprises a valve body (1), wherein both ends of the valve body (1) are provided with an input interface (11) and an output interface (12), a circulation channel is provided in the valve body (1), a seal (13) is provided on the inner wall of the circulation channel, and two sets of seals (13) are provided in a staggered manner, wherein one set of the seals (13) is provided with a mechanical control component on the opposite side, and the mechanical control component comprises a guide sleeve (21) embedded in the valve body (1), a nut (22) is installed on the top of the guide sleeve (21), a valve stem channel (23) is provided in the guide sleeve (21), a valve stem (24) is connected to the inner thread of the nut (22), the lower part of the valve stem (24) extends into the valve stem channel (23), and is provided with a mechanical head (242), and a knob (25) is installed on the top of the valve stem (24); A micro cylinder (3) is embedded and installed on the other sealing port (13) relative to the valve body (1), and a pneumatic sealing head (31) is installed at the output end of the micro cylinder (3); The pneumatic sealing head (31) and the mechanical sealing head (242) are both matched with the sealing mouth (13); The valve stem (24) is slidably connected to the guide sleeve (21), and a plurality of ring grooves (241) are provided on the surface of the valve stem (24) located in the valve stem channel (23), and a rubber ring (26) is installed in the ring groove (241).

2. A throttle valve fluid flow control mechanism according to claim 1, characterized in that: The mechanical sealing head (242) and the pneumatic sealing head (31) are both made of highly wear-resistant and corrosion-resistant materials to increase the smoothness and hardness of their sealing surfaces.

3. The throttle valve fluid flow control mechanism according to claim 1, characterized in that: The contact surface of the seal (13) is provided with a rubber layer and is made of elastic material, which can automatically adjust its shape when subjected to pressure, thereby effectively preventing fluid leakage.

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