Improved plug valve

Abstract

An improved plug-in valve is connected with a valve block in a plug-in mode and comprises a valve body and a valve sleeve arranged on the valve body in a sleeving mode, the valve sleeve is in threaded connection with the valve block, a rubber inner sleeve is arranged in the valve sleeve, a sealing limiting ring is arranged on the inner wall of the rubber inner sleeve, and the valve body comprises a control portion and an assembly portion. A sealing ring groove capable of being assembled with the sealing limiting ring is formed in the outer side face of the assembling part. And the outer diameter of the control part is smaller than that of the assembly part. By means of the design, a user can disassemble and assemble the plug-in valve in a pulling and inserting mode, and compared with traditional threaded assembly, the disassembling and assembling efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plug valves, and in particular relates to an improved plug valve. Background Art

[0002] In modern industrial and fluid control systems, plug valves, as a key component, play an important role in regulating and controlling the flow direction, pressure and flow of media. These systems are widely used in many fields such as petroleum, chemical industry, water treatment, pharmaceuticals, food processing, and aerospace. Their reliability and ease of maintenance are directly related to the safe operation and economic benefits of the entire system.

[0003] Traditional plug-in valve designs mostly rely on threaded assembly technology, which uses the tight engagement of internal and external threads to achieve the connection and fixation between valve components. Specifically, the main body of the valve is usually equipped with external threads, while the valve block or pipe connected to it has matching internal threads. The two are tightened against each other by rotation to achieve the purpose of sealing and fixing. However, this assembly method is time-consuming and labor-intensive, with low disassembly and assembly efficiency, and requires special tools for disassembly, which increases the workload for on-site maintenance personnel.

[0004] Therefore, based on some of the above prior art situations, the present application has been further designed and improved. Utility Model Content

[0005] In order to solve the above technical problems, the utility model solves them through the following technical solutions.

[0006] An improved plug-in valve is plug-in connected to a valve block, comprising a valve body and a valve sleeve sleeved on the valve body, the valve sleeve being threadedly connected to the valve block, a rubber inner sleeve being arranged in the valve sleeve, a sealing limit ring being arranged on the inner wall of the rubber inner sleeve, the valve body comprising a control part and an assembly part, the outer side surface of the assembly part being provided with a sealing ring groove capable of being assembled with the sealing limit ring. The outer diameter of the control part is smaller than that of the assembly part. This design allows the user to disassemble and assemble the plug-in valve by plugging and unplugging, and the disassembly and assembly efficiency is greatly improved compared with the traditional threaded assembly.

[0007] Preferably, at least two groups of sealing limit rings are distributed axially along the assembly portion, and the sealing reliability of the valve under various working conditions is ensured through multi-point limiting, thereby improving the versatility and service life of the product.

[0008] Preferably, the valve sleeve is provided with a hexagonal portion for twisting the valve sleeve, so as to facilitate twisting operation using a tool.

[0009] Preferably, the valve body is equipped with a sealing ring below the valve sleeve. When the plug-in valve is installed on the valve block, the sealing ring is pressed between the valve block and the valve body. This design further improves the overall sealing performance, prevents external contaminants from entering or internal media from leaking, and enhances the safety and stability of the system.

[0010] Preferably, the side wall of the valve sleeve is provided with a plurality of assembly rings, and the outer side wall of the rubber inner sleeve is provided with an assembly ring groove cooperating with the assembly ring. This design aims to improve the compressive strength and stability of the rubber inner sleeve and ensure that the structure does not deform under long-term use.

[0011] Preferably, the rubber inner sleeve is made of anti-corrosion material. This design significantly improves the corrosion resistance of the plug-in valve, extends the service life of the product, and reduces the replacement frequency and maintenance cost.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the user can disassemble and assemble the plug-in valve by plugging and unplugging, and the disassembly and assembly efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the plug valve.

[0014] Figure 2 It is a structural cross-sectional view of the plug valve.

[0015] Figure 3 It is a plan view of the valve body.

[0016] Figure 4 It is a three-dimensional schematic diagram of the valve sleeve.

[0017] Figure 5 It is a three-dimensional schematic diagram of the rubber inner sleeve.

[0018] The following is a description of the markings in the accompanying drawings of the specification:

[0019] 10. Valve body; 11. Control unit; 12. Assembly unit; 13. Sealing ring groove; 14. Sealing ring;

[0020] 20. Valve sleeve; 21. Hexagonal portion; 22. Assembly ring; 23. External thread;

[0021] 30. Rubber inner sleeve; 31. Assembly ring groove. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] In the following embodiments, the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limitations on the present invention.

[0024] In the description of the present utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be understood as limiting the present utility model. In addition, the terms: first, second, etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present utility model, unless otherwise clearly specified and limited, the terms: install, connect, connect, etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Reference Figures 1 to 5 , an improved plug-in valve, plug-in connected to the valve block, includes a valve body 10 and a valve sleeve 20 sleeved on the valve body 10, the valve sleeve 20 is provided with a hexagonal portion 21 for twisting the valve sleeve 20, which is convenient for twisting operation using tools. The valve sleeve 20 is threadedly connected to the valve block, a rubber inner sleeve 30 is provided in the valve sleeve 20, and a sealing limit ring is provided on the inner wall of the rubber inner sleeve 30. The valve body 10 includes a control part 11 and an assembly part 12, and a sealing ring groove 13 that can be assembled with the sealing limit ring is provided on the outer side surface of the assembly part 12. The outer diameter of the control part 11 is smaller than that of the assembly part 12. This design allows users to disassemble and assemble the plug-in valve by plugging and unplugging, and compared with traditional threaded assembly, the disassembly and assembly efficiency is greatly improved.

[0026] In order to ensure the sealing reliability of the plug-in valve and the valve block, at least two groups of sealing limit rings are distributed axially along the assembly portion 12. The sealing reliability of the valve under various working conditions is ensured through multi-point limit, which improves the versatility and service life of the product. The valve body 10 is equipped with a sealing ring 14 below the valve sleeve 20. When the plug-in valve is plugged into the valve block, the sealing ring 14 is against the valve block and the valve body 10. This design further improves the overall sealing performance, prevents external pollutants from entering or internal media from leaking, and enhances the safety and stability of the system.

[0027] Furthermore, the side wall of the valve sleeve 20 is provided with a plurality of assembly rings 22, and the outer side wall of the rubber inner sleeve 30 is provided with an assembly ring groove 31 that cooperates with the assembly ring 22. This design is intended to improve the compressive strength and stability of the rubber inner sleeve 30, and ensure that the structure does not deform under long-term use. The rubber inner sleeve 30 is made of corrosion-resistant material and has good temperature resistance, wear resistance and elasticity to ensure that it can maintain good sealing performance and structural integrity under extreme temperature changes and long-term cyclic loads, which is crucial for applications in industries such as petrochemicals and water treatment.

[0028] In addition, in order to facilitate users to intuitively judge the installation status and maintenance inspection of the plug-in valve, visual indicator marks such as color coding, installation marks or wear warning lines can be set at conspicuous positions on the valve body 10 or the valve sleeve 20. These designs can help maintenance personnel quickly identify whether the plug-in valve is installed correctly, as well as the wear of vulnerable parts such as the rubber inner sleeve 30 and the sealing ring 14, so as to perform necessary maintenance or replacement in time, thereby preventing malfunctions and extending the normal operation time of the equipment.

[0029] In specific application scenarios, such as in a high vibration environment, a shock-absorbing gasket may be provided between the valve body 10 and the valve block, or the structure of the rubber inner sleeve 30 may be optimized to increase its vibration absorption performance, thereby reducing the impact of external vibration on the sealing performance, protecting the entire fluid control system from vibration damage, and ensuring its long-term stable operation.

[0030] It should be noted that the valve body 10 structure in the accompanying drawings is for display purposes only and does not limit the type of plug-in valve of the present application. Its specific design can be adjusted and optimized in a variety of ways according to actual application scenarios and functional requirements. For example, according to the characteristics of the fluid medium (such as temperature, pressure, corrosiveness, etc.), the material of the valve body 10 can be selected from stainless steel, copper alloy, engineering plastics or other corrosion-resistant materials to ensure long-term reliability and safety. In addition, the valve core structure can be designed to be spherical, butterfly, needle or sleeve-shaped, etc., to adapt to different flow control accuracy and switching requirements. For application scenarios that require precise adjustment of fluid flow, a valve core design with fine adjustment function can be used, combined with a precise drive mechanism to achieve fine control of the flow.

[0031] In response to the needs of automated control, plug-in valves can integrate a variety of control methods, including electromagnetic control, pneumatic control, hydraulic control and intelligent electronic control, to achieve remote control and automatic adjustment functions. To enhance the compatibility and scalability of the system, the interface standard should follow the general industry standards, such as ISO, DIN or ANSI, so as to facilitate rapid docking and integration with other equipment.

[0032] In summary, although the accompanying drawings show a specific valve body 10 structure, the plug-in valve design of the present application is highly flexible and customizable, and can meet the specific requirements of different industries and fields through diversified structure and material selection, precise manufacturing process and intelligent functional integration, reflecting the foresight and practicality of the technology.

[0033] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. An improved plug-in valve, plug-in connected to a valve block, characterized in that: The invention comprises a valve body (10) and a valve sleeve (20) sleeved on the valve body (10), the valve sleeve (20) being threadedly connected to the valve block, a rubber inner sleeve (30) being arranged inside the valve sleeve (20), a sealing limit ring being arranged on the inner wall of the rubber inner sleeve (30), the valve body (10) comprising a control part (11) and an assembly part (12), the outer side surface of the assembly part (12) being provided with a sealing ring groove (13) capable of being assembled with the sealing limit ring; the outer diameter of the control part (11) is smaller than that of the assembly part (12).

2. An improved plug valve according to claim 1, characterized in that: At least two groups of sealing limit rings are distributed axially along the assembly portion (12).

3. An improved plug valve according to claim 1, characterized in that: The valve sleeve (20) is provided with a hexagonal portion (21) for twisting the valve sleeve (20).

4. An improved plug valve according to claim 1, characterized in that: The valve body (10) is equipped with a sealing ring (14) below the valve sleeve (20); when the plug-in valve is plugged into the valve block, the sealing ring (14) abuts between the valve block and the valve body (10).

5. An improved plug valve according to claim 1, characterized in that: The side wall of the valve sleeve (20) is provided with a plurality of assembly rings (22), and the outer side wall of the rubber inner sleeve (30) is provided with an assembly ring groove (31) that matches the assembly ring (22).

6. An improved plug valve according to claim 1, characterized in that: The rubber inner sleeve (30) is made of corrosion-resistant material.

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