Top drive plug valve convenient to lubricate

Abstract

The utility model discloses a top drive plug valve convenient to lubricate, and belongs to the field of plug valves, the top drive plug valve convenient to lubricate comprises a valve body, a lubricating device is arranged on the valve body, the lubricating device comprises an oil tank, the oil tank is fixedly connected to the front face of the valve body, an oil inlet is fixedly connected to the left side of the oil tank, and a movable rod movably penetrates through the top of the inner wall of the oil tank. The handle is grabbed, the handle drives the lubricating oil to be sprayed to the top of the valve element, automatic oil spraying can lubricate when equipment runs, the timeliness of lubrication is ensured, and therefore the working efficiency of the equipment is improved, the frequency that an operator makes contact with the lubricating oil is reduced through automatic lubrication, and the safety risk possibly caused by manual operation is reduced; equipment maintenance is simpler, an operator only needs to regularly check the storage of the lubricating oil, and the step of adding the lubricating oil before each time of use is omitted.

Description

Technical Field

[0001] The present application relates to the field of plug valves, and in particular to a top-driven plug valve that is easy to lubricate. Background Art

[0002] Valves are control components in fluid delivery systems, providing functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion, or overflow and pressure relief. Plug valves are a type of valve, with manual plug valves being the most widely used due to their ease of operation and low maintenance costs.

[0003] In the prior art, after long-term use, the plug valve will not rotate smoothly due to long-term wear of the valve core or erosion by moisture. Most of the current solutions are to drip lubricating oil into the inside of the plug valve to enable the valve core to rotate smoothly. However, since most plug valves are integrated designs, it is necessary to remove the valve core and then drip lubricating oil, which makes the process of dripping lubricating oil more cumbersome. Utility Model Content

[0004] The utility model provides a top drive plug valve that is easy to lubricate, which solves the problems raised in the above background technology. To achieve the above object, the utility model is implemented by the following technical solutions: a top drive plug valve that is easy to lubricate, comprising a valve body, a lubrication device provided on the valve body, the lubrication device including an oil tank, the oil tank being fixedly connected to the front of the valve body, an oil inlet being fixedly connected to the left side of the oil tank, a movable rod movably extending through the top of the inner wall of the oil tank, a conical block being fixedly connected to the top of the movable rod, a spring being movably sleeved on the outer wall of the movable rod, the spring being a compression spring, which is easy to manufacture and process, has low cost, and can be adapted to different shapes, sizes and load requirements, thus having high applicability, the compression spring has a compressive force, and has the characteristics of high elasticity, high thermal conductivity and high durability, and has high reliability and stability during operation, and compared with ordinary springs, the compression spring is more compact in design, can exert a greater compression effect in a limited space, and saves equipment space, the bottom of the movable rod is fixedly connected to a piston plate, and the bottom of the oil tank is fixedly connected to an oil injection pipe.

[0005] Preferably, a connecting block is fixedly connected to the valve body.

[0006] Preferably, the connecting block is rotatably connected to a rotating rod through a bearing. The rotating rod is cast in an integrated manner, which improves the integrity. There is no interface inside, and there is no weakness problem at the interface. It does not require assembly and can be directly installed, which is convenient for production and maintenance, reduces the number of parts and steps in the assembly process, reduces assembly cost and time, reduces connection points and joints, reduces the risk of looseness or failure between parts, enhances the structural strength and stability of the overall component, and improves the long-term service life of the product.

[0007] Preferably, the top of the rotating rod is fixedly connected to a rotating disk, and the top of the rotating disk is rotatably connected to a handle via a bearing.

[0008] Preferably, a valve core is fixedly connected to the bottom of the rotating rod.

[0009] Preferably, an extrusion rod is fixedly connected to the bottom of the turntable.

[0010] The benefits of this application are:

[0011] The present application sets up a lubrication device. Grab the handle and the handle drives the lubricating oil to be sprayed onto the top of the valve core. The automatic oil spraying can lubricate while the equipment is running, ensuring the timeliness of lubrication, thereby improving the working efficiency of the equipment. Automatic lubrication reduces the frequency of operator contact with lubricating oil, reduces the safety risks that may be caused by manual operation, and simplifies equipment maintenance. The operator only needs to check the lubricating oil reserve regularly, eliminating the step of adding lubricating oil before each use, thereby solving the problem raised in the background technology that the valve core needs to be removed and the lubricating oil needs to be dripped in, which makes the process of dripping lubricating oil more cumbersome. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings that constitute part of this application are used to provide a further understanding of this application and make other features, objects and advantages of this application more apparent. The illustrative embodiment drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the left side structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the right side cross-sectional structure of the present invention;

[0016] Figure 4 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0017] In the above figure,

[0018] 1. Valve body; 2. Lubrication device; 21. Oil tank; 22. Oil inlet; 23. Movable rod; 24. Conical block; 25. Extrusion rod; 26. Piston plate; 27. Oil injection pipe; 28. Spring; 3. Connecting block; 4. Turning rod; 5. Turntable; 6. Handle; 7. Valve core. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0022] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "several" means two or more, unless otherwise specifically defined.

[0023] Example 1

[0024] See also Figure 1-Figure 4This embodiment provides a top-driven plug valve that is easy to lubricate, including a valve body 1. The valve body 1 is provided with a lubricating device 2. The lubricating device 2 includes an oil tank 21. The oil tank 21 is fixedly connected to the front of the valve body 1. An oil inlet 22 is fixedly connected to the left side of the oil tank 21. A movable rod 23 is movably passed through the top of the inner wall of the oil tank 21. A conical block 24 is fixedly connected to the top of the movable rod 23. A spring 28 is movably sleeved on the outer wall of the movable rod 23. The spring 28 is a compression spring, which is easy to manufacture and process, has low cost, and can be applied to different shapes, sizes and load requirements. Therefore, it has high applicability. Compression springs exert a compressive force and are characterized by high elasticity, high thermal conductivity, and high durability. They offer high reliability and stability during operation. Compared to ordinary springs, compression springs are more compact and can exert a greater compression effect within a limited space, saving equipment space. A piston plate 26 is fixedly connected to the bottom of the movable rod 23, and an oil injection pipe 27 is fixedly connected to the bottom of the oil tank 21. A spring 28 is movably sleeved on the outer wall of the movable rod 23. This spring 28 provides the necessary rebound force to ensure that the movable rod 23 returns to its initial position when not in use, preventing oil leakage. A piston plate 26 is fixedly connected to the bottom of the movable rod 23. This piston plate 26 is used to enhance the pressure output of the oil and ensure effective distribution of the lubricating oil. An oil injection pipe 27 is fixedly connected to the bottom of the oil tank 21. This injection pipe 27 delivers lubricating oil to the top of the valve core 7, ensuring continuous lubrication. A connecting block 3 is fixedly connected to the valve body 1. The connection block 3 is designed to provide a connection interface between the valve body and the external system. The connecting block 3 not only enhances the structural stability of the valve body 1 but also enables tight connection with other equipment or piping systems, ensuring safe and efficient fluid transfer. The shape and dimensions of the connecting block 3 are carefully designed to accommodate standard interfaces, facilitating user operation during installation and maintenance. The connecting block 3 is rotatably connected to the rotating rod 4 via a bearing. The rotating rod 4 is cast in an integrated manner, enhancing integrity. With no internal joints, there are no weak points at these interfaces, eliminating the need for assembly and allowing for direct installation. This facilitates manufacturing and maintenance, reduces the number of components and steps involved in the assembly process, lowering assembly costs and time. The reduced number of connection points and joints reduces the risk of loosening or failure between components, enhances the structural strength and stability of the entire assembly, and improves the long-term service life of the product. The rotating rod 4 rotates smoothly within the connecting block 3, reducing friction and extending the life of the equipment. The rotating rod 4 effectively transmits torque, ensuring quick and reliable opening and closing of the valve core 7. The bearing selection and mounting position are optimized to accommodate high loads and frequent operation, thereby improving the overall efficiency of the valve. The top of the rotating rod 4 is fixedly connected to a rotating disk 5, and the top of the rotating disk 5 is rotatably connected to a handle 6 through a bearing. The bottom of the rotating rod 4 is fixedly connected to a valve core 7. The bottom of the rotating disk 5 is fixedly connected to an extrusion rod 25.

[0025] When the above-mentioned equipment is in use, grasp the handle 6, the handle 6 drives the turntable 5 to rotate, and the turntable 5 drives the squeezing rod 25 to rotate. When the squeezing rod 25 rotates to the top of the conical block 24, the conical block 24 is squeezed to move to the bottom, and the conical block 24 drives the movable rod 23 to descend. The movable rod 23 drives the spring 28 to stretch, and the movable rod 23 drives the piston plate 26 to descend. The piston plate 26 squeezes the lubricating oil and sprays it out from the oil spray pipe 27, spraying the lubricating oil to the top of the valve core 7. When the squeezing rod 25 no longer supports the conical block 24, the spring 28 drives the piston plate 26 to reset. Automatic oil spraying can lubricate while the equipment is running.

[0026] 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.

Claims

1. A top-driven plug valve that is easy to lubricate, comprising a valve body (1), characterized in that: The valve body (1) is provided with a lubricating device (2), and the lubricating device (2) includes an oil tank (21), the oil tank (21) is fixedly connected to the front of the valve body (1), the left side of the oil tank (21) is fixedly connected to an oil inlet (22), a movable rod (23) is movably passed through the top of the inner wall of the oil tank (21), a conical block (24) is fixedly connected to the top of the movable rod (23), a spring (28) is movably sleeved on the outer wall of the movable rod (23), a piston plate (26) is fixedly connected to the bottom of the oil tank (21), and an oil injection pipe (27) is fixedly connected to the bottom of the oil tank (21).

2. A top drive plug valve that is easy to lubricate according to claim 1, characterized in that: A connecting block (3) is fixedly connected to the valve body (1).

3. A top drive plug valve that is easy to lubricate according to claim 2, characterized in that: The connecting block (3) is rotatably connected to a rotating rod (4) via a bearing.

4. A top drive plug valve that is easy to lubricate according to claim 3, characterized in that: The top of the rotating rod (4) is fixedly connected to a rotating disk (5), and the top of the rotating disk (5) is rotatably connected to a handle (6) via a bearing.

5. A top drive plug valve that is easy to lubricate according to claim 4, characterized in that: The bottom of the rotating rod (4) is fixedly connected with a valve core (7).

6. A top drive plug valve that is easy to lubricate according to claim 5, characterized in that: The bottom of the rotating disk (5) is fixedly connected with an extrusion rod (25).

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