A valve core with added grease nipple

Abstract

This utility model relates to the field of gas butterfly valve technology, specifically disclosing a valve core with added grease fitting. It includes a gas butterfly valve body with two vertically distributed oil injection mechanisms on its outer wall. Each oil injection mechanism includes an oil injection hole penetrating the outer wall of the valve body's bushing. Molybdenum disulfide can be injected into the gap between the valve core shaft and the bushing through the oil injection pipe and the oil injection hole. The molybdenum disulfide lubricates and seals the gap between the valve core shaft and the bushing, preventing corrosion, scale buildup, and jamming. It eliminates the need for regular disassembly, cleaning, or component replacement, making operation simple and convenient with low maintenance costs. It fundamentally solves the lubrication and sealing problems. Through the cooperation of the screw, push plate, and oil injection pipe, molybdenum disulfide can be replenished between the valve core shaft and the bushing, eliminating the need for repeated replenishment with a molybdenum disulfide injection device, making it convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of gas butterfly valve technology, and specifically discloses a valve core with added grease fitting. Background Technology

[0002] A gas butterfly valve is a valve specifically designed for cutting off or regulating the flow of gas, natural gas, and other combustible gases in pipeline systems. Its core feature lies in its "butterfly plate" structure, a disc-shaped valve flap that rotates to control the on / off state and flow of gas. Gas butterfly valves are widely used in industries such as metallurgy and chemicals to control the flow of corrosive media such as gas.

[0003] Currently, butterfly valves used in gas transmission systems often suffer from corrosion, scale buildup, and jamming between the valve core and bushing due to the lack of continuous and effective lubrication and sealing protection between them. This is especially problematic when operating in gas media containing moisture, sulfides, and other impurities for extended periods. This severely affects the normal operation of the valves and can even lead to equipment failures and production interruptions. Traditional solutions often involve periodic disassembly, cleaning, or replacement of parts, which is cumbersome, results in long downtime, and incurs high maintenance costs. Furthermore, these solutions do not fundamentally address the lubrication and sealing issues. Utility Model Content

[0004] This invention proposes a valve core with an added grease nipple. By conveniently and quickly adding molybdenum disulfide between the valve core shaft and the bushing, the valve core shaft and bushing are lubricated and sealed, preventing rust, scale buildup and jamming between the valve shaft and bushing. It eliminates the need for regular disassembly, cleaning or replacement of parts, is simple and convenient to operate, has low maintenance costs, and fundamentally solves the lubrication and sealing problems.

[0005] This utility model is implemented as follows: a valve core with added grease nipple, including a gas butterfly valve body, wherein the outer wall of the gas butterfly valve body is provided with two oil injection mechanisms distributed vertically.

[0006] The oil injection mechanism includes an oil injection hole that penetrates the outer wall of the gas butterfly valve body bushing. The oil injection hole communicates with the gap between the valve core shaft and the bushing. An oil injection pipe communicating with the oil injection hole is fixedly connected to the outer wall of the gas butterfly valve body bushing by welding. The other end of the oil injection pipe is threadedly connected to a pipe cap. A push plate located inside the oil injection pipe is provided inside the pipe cap.

[0007] As a preferred embodiment of the present invention, the valve core with added grease nipple is provided with a threaded screw connected through the left side wall of the tube cap, one end of which extends into the interior of the tube cap and is rotatably connected to the push plate.

[0008] As a preferred embodiment of this utility model, the valve core with added grease nipple is provided with a piston ring that matches the inner wall of the oil injection pipe, which is fixedly connected to the outer wall of the push plate.

[0009] As a preferred embodiment of the present invention, the valve core with added grease nipple is provided with an air inlet hole through the left side wall of the pipe cap, which communicates with the oil injection pipe.

[0010] As a preferred embodiment of this utility model, where a grease nipple is added to the valve core, a torsion block is fixedly connected to the other end of the screw.

[0011] As a preferred embodiment of the present invention, the valve core with added grease nipple is provided, wherein the outer wall of the tube cap is configured as a hexagonal structure.

[0012] The beneficial effects of this utility model are:

[0013] Molybdenum disulfide can be injected into the gap between the valve core and the bushing through the oil injection pipe and oil injection hole. The molybdenum disulfide lubricates and seals the gap between the valve core and the bushing, preventing rust, scale buildup, and jamming. There is no need for regular disassembly, cleaning, or replacement of parts. The operation is simple and convenient, and the maintenance cost is low. It fundamentally solves the lubrication and sealing problems. Through the cooperation of the screw, push plate, and oil injection pipe, molybdenum disulfide can be replenished between the valve core and the bushing. There is no need to repeatedly use the molybdenum disulfide injection equipment to replenish the gap between the valve core and the bushing. It is convenient to use. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front cross-sectional view of the present invention.

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram of part a.

[0018] The markings in the diagram are: 1. Gas butterfly valve body; 2. Oil injection hole; 3. Oil injection pipe; 4. Pipe cover; 5. Push plate; 6. Screw; 7. Piston ring; 8. Air inlet; 9. Torque block. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0020] Please see Figure 1-3 A valve core with added grease nipple, including a gas butterfly valve body 1, wherein the outer wall of the gas butterfly valve body 1 is provided with two oil injection mechanisms distributed vertically.

[0021] The oil injection mechanism includes an oil injection hole 2 that penetrates the outer wall of the bushing of the gas butterfly valve body 1. The oil injection hole 2 communicates with the gap between the valve core shaft and the bushing. An oil injection pipe 3 that communicates with the oil injection hole 2 is fixedly connected to the outer wall of the bushing of the gas butterfly valve body 1 by welding. The other end of the oil injection pipe 3 is threadedly connected to a pipe cap 4. A push plate 5 located inside the oil injection pipe 3 is provided inside the pipe cap 4.

[0022] In this embodiment: During use, the cap 4 is unscrewed, and then molybdenum disulfide is injected into the gap between the valve core and the bushing through the oil injection pipe 3 and the oil injection hole 2. The molybdenum disulfide lubricates and seals the gap between the valve core and the bushing, preventing rust, scale buildup, and jamming. This eliminates the need for periodic disassembly, cleaning, or replacement of parts, making operation simple and convenient with low maintenance costs. It fundamentally solves the lubrication and sealing problems. After injecting the molybdenum disulfide into the gap between the valve core and the bushing, the oil injection pipe 3 is filled, and then the cap is removed. 4. Tighten the screw to the oil injection pipe 3 and insert the push plate 5 into the oil injection pipe 3. When the molybdenum disulfide between the valve core shaft and the bushing is consumed, rotate the screw 6. Through the interaction between the screw 6 and the pipe cover 4, the push plate 5 is driven to move deeper into the oil injection pipe 3. The push plate 5 pushes the molybdenum disulfide in the oil injection pipe 3 into the gap between the valve core shaft and the bushing, thereby replenishing the molybdenum disulfide between the valve core shaft and the bushing. This eliminates the need to repeatedly use the molybdenum disulfide injection equipment to replenish the molybdenum disulfide between the valve core shaft and the bushing, making it convenient to use.

[0023] As a technical optimization of this utility model, a screw 6 is threadedly connected to the left side wall of the tube cover 4. One end of the screw 6 extends into the interior of the tube cover 4 and is rotatably connected to the push plate 5.

[0024] In this embodiment: the screw 6 rotates, and the screw 6, in conjunction with the tube cover 4, drives the push plate 5 to move.

[0025] As a technical optimization of this utility model, the outer wall of the push plate 5 is fixedly connected with a piston ring 7 that matches the inner wall of the oil injection pipe 3.

[0026] In this embodiment, a piston ring 7 that matches the inner wall of the oil injection pipe 3 is fixedly connected to the outer wall of the push plate 5. The piston ring 7 can seal the push plate 5 and the oil injection pipe 3, so that the push plate 5 can stably push molybdenum disulfide.

[0027] As a technical optimization of this utility model, the left side wall of the pipe cover 4 is provided with an air inlet 8 that communicates with the oil injection pipe 3.

[0028] In this embodiment: the left side wall of the pipe cover 4 is provided with an air inlet 8 that communicates with the oil injection pipe 3. When the push plate 5 moves inside the oil injection pipe 3, external air can enter the oil injection pipe 3 through the air inlet 8 to prevent negative pressure from being generated inside the oil injection pipe 3, which would affect the movement of the push plate 5.

[0029] As a technical optimization of this utility model, a torsion block 9 is fixedly connected to the other end of the screw 6.

[0030] In this embodiment, a torsion block 9 is fixedly connected to the other end of the screw 6, which facilitates the rotation of the screw 6.

[0031] As a technical optimization of this utility model, the outer wall of the pipe cover 4 is set as a hexagonal structure.

[0032] In this embodiment, the outer wall of the tube cap 4 is set as a hexagonal structure, which facilitates the twisting of the tube cap 4.

[0033] The working principle and usage process of this utility model are as follows: In use, unscrew the cap 4, then inject molybdenum disulfide into the gap between the valve core and the bushing through the oil injection pipe 3 and the oil injection hole 2. The molybdenum disulfide lubricates and seals the gap between the valve core and the bushing. After injection, fill the oil injection pipe 3 with molybdenum disulfide, then screw the cap 4 onto the oil injection pipe 3, and insert the push plate 5 into the oil injection pipe 3. When the molybdenum disulfide between the valve core and the bushing is depleted, drive the screw 6 to rotate via the torsion block 9. Through the interaction between the screw 6 and the cap 4, the push plate 5 moves deeper into the oil injection pipe 3, pushing the molybdenum disulfide in the oil injection pipe 3 into the gap between the valve core and the bushing, thus replenishing the molybdenum disulfide between the valve core and the bushing. This eliminates the need for repeated replenishment of molybdenum disulfide between the valve core and the bushing using the molybdenum disulfide injection equipment, making it convenient to use.

[0034] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0035] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A valve core with added grease fitting, comprising a gas butterfly valve body (1), characterized in that: The outer wall of the gas butterfly valve body (1) is provided with two oil injection mechanisms distributed vertically. The oil injection mechanism includes an oil injection hole (2) that penetrates the outer wall of the bushing of the gas butterfly valve body (1). The oil injection hole (2) communicates with the gap between the valve core shaft and the bushing. The outer wall of the bushing of the gas butterfly valve body (1) is fixedly connected to an oil injection pipe (3) that communicates with the oil injection hole (2) by welding. The other end of the oil injection pipe (3) is threadedly connected to a pipe cap (4). The inside of the pipe cap (4) is a push plate (5) located inside the oil injection pipe (3).

2. The valve core with added grease fitting according to claim 1, characterized in that: A screw (6) is threaded through the left side wall of the tube cap (4). One end of the screw (6) extends into the inside of the tube cap (4) and is rotatably connected to the push plate (5).

3. The valve core with added grease fitting according to claim 1, characterized in that: The outer wall of the push plate (5) is fixedly connected to a piston ring (7) that matches the inner wall of the oil injection pipe (3).

4. A valve core with an added grease nipple according to claim 1, characterized in that: An air inlet (8) communicating with the oil injection pipe (3) is provided through the left side wall of the pipe cap (4).

5. A valve core with an added grease nipple according to claim 2, characterized in that: The other end of the screw (6) is fixedly connected to a torsion block (9).

6. A valve core with an added grease nipple according to claim 1, characterized in that: The outer wall of the pipe cap (4) is configured as a hexagonal structure.

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