Lubricating type top drive plug valve

Abstract

The utility model provides a lubrication type top drive plug valve, which relates to the technical field of lubrication type top drive plug valves and comprises a valve body, a valve core, a rotating shaft, a core seat and a handle, a valve seat is arranged at the lower end of the valve body, a valve cover is arranged at the upper end of the valve body, the core seat is arranged at the lower end of the valve core, the rotating shaft is arranged at the upper end of the valve core, and the core seat is movably arranged on the valve seat. The rotating shaft is movably arranged in the valve cover, a handle is arranged on the rotating shaft, the end, away from the rotating shaft, of the handle penetrates through the valve cover and extends out of the valve cover, through flowing grooves are formed in the surfaces of the valve element, the rotating shaft and the element base, an injection hole is formed in one side of the valve cover, a sealing assembly is arranged in the injection hole, and the injection hole is sleeved with a pushing assembly. The device can be used for automatically filling the top drive plug valve with the lubricating emulsion, so that the loss of labor force is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of a lubricating top-driven plug valve, and more specifically, particularly relates to a lubricating top-driven plug valve. Background Art

[0002] Lubricated top drive plug valve is a special plug valve. Its main feature is that there is an oil injection hole between the plug body and the valve seat. By injecting special grease, the sealing effect is enhanced, friction and wear are reduced, and the service life is extended. This valve is usually used in occasions that require frequent operation, such as oil drilling and other industrial fields. The working principle of lubricated top drive plug valve is to achieve the purpose of opening and closing by rotating the plug body 90 degrees.

[0003] Based on the above, the inventors have found the following problems: the current lubricated top drive plug valve generally requires operators to manually add grease, and the lubrication level of the top drive plug valve cannot be monitored. The lubrication level of the top drive plug valve is generally judged by the smoothness of turning the switch handle on the top drive plug valve, which is relatively cumbersome.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a lubricated top drive plug valve is provided in order to achieve a purpose with greater practical value. Utility Model Content

[0005] The purpose and effect of the lubricated top drive plug valve of this utility model are achieved by the following specific technical means:

[0006] A lubricated top-driven plug valve comprises a valve body, a valve core, a rotating shaft, a core seat and a handle. The lower end of the valve body is provided with a valve seat, the upper end of the valve body is provided with a valve cover, the lower end of the valve core is provided with a core seat, the upper end of the valve core is provided with a rotating shaft, the core seat is movably arranged on the valve seat, the rotating shaft is movably arranged in the valve cover, a handle is provided on the rotating shaft, the end of the handle away from the rotating shaft passes through the valve cover and extends out of the valve cover, a penetrating flow groove is provided on the surfaces of the valve core, the rotating shaft and the core seat, an injection hole is provided on one side of the valve cover, a closing component is provided in the injection hole, and a pushing component is provided on the outer sleeve of the injection hole.

[0007] Furthermore, the closing assembly includes a spring, an I-shaped part, a through hole and an intermediate cavity. The intermediate cavity is provided at one end of the injection hole away from the valve cover. The intermediate cavity is penetrated by a through hole. A spring is provided in the intermediate cavity. The spring is sleeved on the I-shaped part. One end of the I-shaped part is provided on the intermediate cavity, and the other end of the I-shaped part penetrates the through hole and extends into the injection hole.

[0008] Furthermore, the pushing assembly includes a placement chamber, a push plate, an opening, a closing cover, a connecting prism, an operating chamber, a movable sleeve, a rotating shaft, bevel gear 1, bevel gear 2, a connecting column and a motor. The injection hole outer sleeve is provided with a placement chamber, an opening is provided at the upper end of the placement chamber, a closing cover is provided on the opening, a push plate is provided at the end of the placement chamber away from the injection hole, a connecting prism is provided at the end of the push plate away from the injection hole, the connecting prism passes through the placement chamber and extends into the operating chamber provided with a movable sleeve, the movable sleeve is threadedly connected with a rotating shaft, a bevel gear 1 is provided on the rotating shaft, a bevel gear 2 is meshed with the bevel gear 1, the end of the rotating shaft away from the movable sleeve is provided on one side inner wall of the operating chamber, the bevel gear 2 is provided on the connecting column, and one end of the connecting column is movably provided at the top end of the operating chamber, the other end of the connecting column is provided with a motor, and the motor is provided at the bottom end of the operating chamber.

[0009] Furthermore, a sealing ring is provided on the side of the push plate that contacts the inner wall of the placement cavity.

[0010] Furthermore, the sealing ring is made of rubber.

[0011] Furthermore, a thread groove is provided at a portion where the placement cavity and the injection hole are in contact, a thread is provided outside the injection hole, the thread groove matches the thread, and a sealing layer is provided between the placement cavity and the injection hole.

[0012] Furthermore, sealing gaskets are provided at both ends of the I-shaped part.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By starting the motor to rotate, the connecting column is driven to rotate, the second bevel gear is driven to rotate, the first bevel gear is driven to rotate, and the rotating shaft is driven to rotate, and the movable sleeve is driven to move on the rotating shaft, and the connecting prism and the push plate are driven to move in the placement cavity toward the injection hole, so that the grease in the placement cavity moves toward the injection hole, and then the extrusion molding moves toward the valve cover. At this time, the through hole is opened, so that the grease is squeezed through the intermediate cavity, the through hole, and the injection hole to the rotating shaft, and then flows through the flow groove to the rotating shaft and the core seat. When the surface of the valve core, the rotating shaft and the core seat are soaked with grease, the start of the motor can be set at a certain time interval through the terminal, so that the top drive plug valve can be lubricated regularly, and the start time of the motor can also be set at a fixed time, so that the device can fully lubricate the top drive plug valve without over-lubrication.

[0015] By placing the grease extrusion tooling in the cavity, the tooling can be moved toward the valve cover, at which time the through hole is open. When the tooling is no longer squeezed by the grease, the tooling moves toward the push plate under the action of the spring, thereby closing the through hole. Through the design of the closing component, when the lubrication operation of the top drive plug valve is completed, the grease in the top drive plug valve can be prevented from overflowing out of the through hole, thereby reducing the lubrication effect of the top drive plug valve;

[0016] The design of the flow groove allows the grease on the rotating shaft to flow smoothly to the rotating shaft and the core seat;

[0017] Through the design of the sealing ring, when the push plate squeezes the grease in the placement cavity, the grease will not flow into the operating cavity through the gap between the push plate and the placement cavity, affecting the operation of the pushing component, and the grease can be smoothly squeezed out of the molding to open the through hole, making it convenient for the grease to enter the rotating shaft and the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional schematic diagram of the utility model lubricated top drive plug valve.

[0019] Figure 2 This is a new type of lubricated top drive plug valve Figure 1 Enlarged schematic diagram of point A.

[0020] Figure 3 This is a new type of lubricated top drive plug valve Figure 1 Enlarged schematic diagram at point B.

[0021] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0022] 1. Valve body; 2. Valve cover; 3. Handle; 4. Rotating shaft; 6. Core seat; 7. Flow groove; 8. Valve seat; 9. Intermediate cavity; 10. Valve core; 12. Injection hole; 13. Placement cavity; 14. Opening; 15. Closing cover; 16. Connecting prism; 17. Push plate; 18. I-shaped part; 19. Spring; 20. Through hole; 21. Operating cavity; 22. Moving sleeve; 23. Rotating shaft; 24. Bevel gear 1; 25. Bevel gear 2; 26. Motor; 27. Connecting column; 28. Sealing ring. DETAILED DESCRIPTION

[0023] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] Example:

[0027] As attached Figure 1 To the attached Figure 3 As shown:

[0028] The utility model provides a lubricated top-driven plug valve, comprising a valve body 1, a valve core 10, a rotating shaft 4, a core seat 6 and a handle 3. The lower end of the valve body 1 is provided with a valve seat 8, the upper end of the valve body 1 is provided with a valve cover 2, the lower end of the valve core 10 is provided with a core seat 6, the upper end of the valve core 10 is provided with a rotating shaft 4, the core seat 6 is movably arranged on the valve seat 8, the rotating shaft 4 is movably arranged in the valve cover 2, a handle 3 is provided on the rotating shaft 4, the end of the handle 3 away from the rotating shaft 4 passes through the valve cover 2 and extends out of the valve cover 2, a penetrating flow groove 7 is provided on the surfaces of the valve core 10, the rotating shaft 4 and the core seat 6, an injection hole 12 is provided on one side of the valve cover 2, a closing component is provided in the injection hole 12, and a pushing component is provided on the outer cover of the injection hole 12;

[0029] Through the design of the flow groove 7, the grease on the rotating shaft 4 can flow smoothly to the rotating shaft 4 and the core seat 6.

[0030] The closure assembly includes a spring 19, an I-shaped piece 18, a through hole 20, and an intermediate cavity 9. The injection hole 12 is provided with an intermediate cavity 9 at one end away from the valve cover 2. The intermediate cavity 9 is penetrated by a through hole 20. A spring 19 is provided in the intermediate cavity 9. The spring 19 is sleeved on the I-shaped piece 18. One end of the I-shaped piece 18 is provided on the intermediate cavity 9, and the other end of the I-shaped piece 18 penetrates the through hole 20 and extends into the injection hole 12.

[0031] By placing the grease extrusion I-piece 18 in the cavity 13, the I-piece 18 can be moved toward the valve cover 2. At this time, the through hole 20 is open. When the I-piece 18 is not squeezed by the grease, the I-piece 18 moves toward the push plate 17 under the action of the spring 19, thereby closing the through hole 20. Through the design of the closing component, when the lubrication operation of the top drive plug valve is completed, the grease in the top drive plug valve can be prevented from overflowing out of the through hole 20, thereby reducing the lubrication effect of the top drive plug valve.

[0032] The pushing assembly includes a placement cavity 13, a push plate 17, an opening 14, a closing cover 15, a connecting prism 16, an operating cavity 21, a movable sleeve 22, a rotating shaft 23, a bevel gear 1 24, a bevel gear 2 25, a connecting column 27 and a motor 26. The injection hole 12 is provided with a placement cavity 13 on the outer cover, an opening 14 is provided on the upper end of the placement cavity 13, a closing cover 15 is provided on the opening 14, a push plate 17 is provided at one end of the placement cavity 13 away from the injection hole 12, a connecting prism 16 is provided at one end of the push plate 17 away from the injection hole 12, and the connecting prism The column 16 passes through the placement cavity 13 and extends into the operating cavity 21, and is provided with a movable sleeve 22. The movable sleeve 22 is internally threadedly connected to a rotating shaft 23. A bevel gear 1 24 is provided on the rotating shaft 23. A bevel gear 25 is meshed with the bevel gear 1 24. The end of the rotating shaft 23 away from the movable sleeve 22 is provided on the inner wall of one side of the operating cavity 21. The bevel gear 25 is provided on a connecting column 27, and one end of the connecting column 27 is movably provided at the top end of the operating cavity 21. The other end of the connecting column 27 is provided with a motor 26, and the motor 26 is provided at the bottom end of the operating cavity 21.

[0033] When the placement chamber 13 is filled with grease, the motor 26 is started to rotate, driving the connecting column 27 to rotate, driving the bevel gear 25 to rotate, driving the bevel gear 1 24 to rotate, and at the same time driving the rotating shaft 23 to rotate, driving the movable sleeve 22 to move on the rotating shaft 23, driving the connecting prism 16 and the push plate 17 to move in the placement chamber 13 towards the injection hole 12, so that the grease in the placement chamber 13 moves toward the injection hole 12, and then the extrusion molding 18 moves toward the valve cover 2. At this time, the through hole 20 is opened, so that the grease is squeezed through the intermediate chamber 9, the through hole 20, and the injection hole 12 to the rotating shaft 4, and then flows through the flow groove 7 to the rotating shaft 4 and the core seat 6. When the surfaces of the valve core 10, the rotating shaft 4 and the core seat 6 are soaked with grease, the start of the motor 26 can be set at a certain time interval through the terminal, so that the top drive plug valve can be lubricated regularly, and the start time of the motor 26 can also be set at a fixed time, so that the device can fully lubricate the top drive plug valve without over-lubrication.

[0034] The side of the push plate 17 that contacts the inner wall of the placement cavity 13 is provided with a sealing ring 28;

[0035] Through the design of the sealing ring 28, when the push plate 17 squeezes the grease in the placement chamber 13, the grease will not flow into the operating chamber 21 through the gap between the push plate 17 and the placement chamber 13, affecting the operation of the pushing component, and the grease can be smoothly squeezed out of the molding 18 to open the through hole 20, making it convenient for the grease to enter the rotating shaft 4 and the valve body 1.

[0036] The sealing ring 28 is made of rubber.

[0037] A thread groove is provided at the portion where the placement cavity 13 and the injection hole 12 meet, and threads are provided on the outside of the injection hole 12 . The thread groove matches the threads, and a sealing layer is provided between the placement cavity 13 and the injection hole 12 .

[0038] Wherein, sealing gaskets are provided at both ends of the I-shaped member 18 .

[0039] The specific usage and function of this embodiment are as follows:

[0040] When using this device, first check the integrity of the device. After installing the top drive plug valve, the operator can open the closing cover 15 at the upper end of the placement chamber 13 and inject grease into the placement chamber 13 from the opening 14. At this time, the push plate 17 is located at the end of the placement chamber 13 away from the injection hole 12. When the placement chamber 13 is filled with grease, the opening 14 is closed. When it is necessary to inject grease into the valve core 10, the rotating shaft 4 and the core seat 6, the motor 26 is started to rotate, driving the connecting column 27 to rotate, driving the bevel gear 25 to rotate, driving the bevel gear 1 24 to rotate, and at the same time driving the rotating shaft 23 to rotate, driving the movable sleeve 22 to move on the rotating shaft 23, driving the connecting prism 16 and the push plate 17 to move in the placement chamber 13 toward the injection hole 12, so that the grease in the placement chamber 13 moves toward the injection hole 12, and then the extrusion molding 18 moves toward the valve cover 2. At this time The through hole 20 is opened, so that the grease is squeezed through the intermediate cavity 9, the through hole 20, and the injection hole 12 to the rotating shaft 4, and then flows through the flow groove 7 to the rotating shaft 4 and the core seat 6. When the surfaces of the valve core 10, the rotating shaft 4 and the core seat 6 are soaked with grease, the motor 26 is turned off. The start-up of the motor 26 can be set at a certain time interval through the terminal, so that the top drive plug valve can be lubricated regularly, and the start-up time of the motor 26 can also be set at a fixed time, so that the device can fully lubricate the top drive plug valve without over-lubrication; at this time, the I-shaped part 18 moves toward the push plate 17 under the action of the spring 19, thereby closing the through hole 20 and isolating the valve cover 2 from the placement chamber 13, thereby realizing the automatic lubrication action of the top drive plug valve; wherein, a certain amount of grease can be placed in the placement chamber 13, and lubrication operations can be performed multiple times.

[0041] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A lubricated top-driven plug valve comprising a valve body (1), a valve core (10), a rotating shaft (4), a core seat (6) and a handle (3), characterized in that: The valve body (1) is provided with a valve seat (8) at the lower end, the valve body (1) is provided with a valve cover (2) at the upper end, the valve core (10) is provided with a core seat (6) at the lower end, the valve core (10) is provided with a rotating shaft (4) at the upper end, the core seat (6) is movably arranged on the valve seat (8), the rotating shaft (4) is movably arranged in the valve cover (2), a handle (3) is provided on the rotating shaft (4), the end of the handle (3) away from the rotating shaft (4) passes through the valve cover (2) and extends out of the valve cover (2), the surfaces of the valve core (10), the rotating shaft (4) and the core seat (6) are provided with a penetrating flow groove (7), one side of the valve cover (2) is provided with an injection hole (12), a closing component is provided in the injection hole (12), and a pushing component is provided on the outer cover of the injection hole (12).

2. The lubricated top drive plug valve according to claim 1, characterized in that: The sealing assembly comprises a spring (19), an I-shaped part (18), a through hole (20) and an intermediate cavity (9); the injection hole (12) is provided with an intermediate cavity (9) at one end away from the valve cover (2); the intermediate cavity (9) is provided with a through hole (20); a spring (19) is provided in the intermediate cavity (9); the spring (19) is sleeved on the I-shaped part (18); one end of the I-shaped part (18) is provided on the intermediate cavity (9); the other end of the I-shaped part (18) passes through the through hole (20) and extends into the injection hole (12).

3. The lubricated top drive plug valve according to claim 1, characterized in that: The pushing assembly comprises a placement chamber (13), a push plate (17), an opening (14), a closing cover (15), a connecting prism (16), an operating chamber (21), a moving sleeve (22), a rotating shaft (23), a bevel gear 1 (24), a bevel gear 2 (25), a connecting column (27) and a motor (26). The injection hole (12) is provided with a placement chamber (13) on its outer cover. The placement chamber (13) is provided with an opening (14) at its upper end. The closing cover (15) is provided on the opening (14). The placement chamber (13) is provided with a push plate (17) at one end away from the injection hole (12). The push plate (17) is provided with a connecting prism (16) at one end away from the injection hole (12). The connecting The prism (16) passes through the placement cavity (13) and extends into the operation cavity (21) and is provided with a movable sleeve (22). The movable sleeve (22) is internally threadedly connected to a rotating shaft (23). A bevel gear 1 (24) is provided on the rotating shaft (23). A bevel gear 2 (25) is meshed with the bevel gear 1 (24). One end of the rotating shaft (23) away from the movable sleeve (22) is provided on an inner wall of one side of the operation cavity (21). The bevel gear 2 (25) is provided on a connecting column (27). One end of the connecting column (27) is movably provided at the top end of the operation cavity (21). The other end of the connecting column (27) is provided with a motor (26). The motor (26) is provided at the bottom end of the operation cavity (21).

4. The lubricated top drive plug valve according to claim 3, characterized in that: A sealing ring (28) is provided on the side of the push plate (17) that contacts the inner wall of the placement cavity (13).

5. The lubricated top drive plug valve according to claim 4, characterized in that: The sealing ring (28) is made of rubber.

6. The lubricated top drive plug valve according to claim 5, characterized in that: A thread groove is provided at the portion where the placement cavity (13) and the injection hole (12) are in contact. The injection hole (12) is provided with threads on the outside. The thread groove matches the threads, and a sealing layer is provided between the placement cavity (13) and the injection hole (12).

7. The lubricated top drive plug valve according to claim 2, characterized in that: Both ends of the I-shaped part (18) are provided with sealing pads.

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