Petroleum pipeline gate valve

Abstract

The utility model provides a petroleum pipeline gate valve, which belongs to the field of gate valves and comprises a gate valve body provided with a valve rod. The protection assembly comprises a sleeve cover, a positioning column and a movable column, the sleeve cover is fixedly arranged on the gate valve body, the valve rod is arranged in the sleeve cover, and the positioning column is fixedly arranged on the valve rod. The protection assembly is arranged, the valve rod can be limited, the gate valve body is prevented from loosening, the situation that the gate valve body is opened or closed due to mistaken touch is avoided, safety and stability are improved, the rotating assembly is further arranged, when the gate valve is not used, the annular rotating handle can be taken down, the situation that the production process is disturbed due to operation of non-staff is avoided, safety is improved, and production efficiency is improved. And an extension rod is further arranged and can assist in rotating the annular rotating handle, the situation that the annular rotating handle is stuck is avoided, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gate valve especially relates to a petroleum pipeline gate valve. BACKGROUND

[0002] The petroleum pipeline gate valve is a widely used valve type in the petroleum industry, mainly used for controlling the flow of petroleum, natural gas and other media. The gate valve realizes full opening or full closing function through the lifting of the gate plate, thereby effectively blocking the fluid. Its structure is simple, fluid resistance is small, and it is labor-saving to open and close, and can be used in the case of bidirectional flow of medium. The gate valve plays a key role in cutting off in the petroleum pipeline system, ensuring the safe operation of the pipeline and the normal transportation of the medium.

[0003] In the existing technology, the design of many pipeline gate valves generally lacks effective anti-mis-touch mechanism, which often leads to accidental opening or closing of the gate valve due to unexpected touch, thereby causing unnecessary interference to the production process, and in severe cases, it may even cause safety accidents, thereby reducing the safety and stability of the overall system. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a petroleum pipeline gate valve.

[0005] The embodiment of the utility model provides a petroleum pipeline gate valve, which comprises:

[0006] A gate valve body is provided with a valve stem;

[0007] A protection assembly comprises a cover, a positioning column and a movable column, the cover is fixedly arranged on the gate valve body, the valve stem is arranged in the cover, the positioning column is fixedly arranged on the valve stem, the movable column is movably arranged through the top of the cover, the bottom of the movable column is provided with a positioning groove, the positioning column is slidably arranged in the positioning groove, the top of the positioning column is fixedly provided with a spring, the other end of the spring is fixedly arranged on the inner top of the positioning groove, the bottom end of the movable column is fixedly provided with a plurality of clamping plates, the inner top of the cover is fixedly provided with an annular block, and a plurality of clamping grooves are arranged on the inner side of the annular block.

[0008] A rotating assembly is used to rotate the valve stem.

[0009] Further, the rotating assembly comprises a mounting block and an annular handle, the top of the movable column is fixedly provided with a clamping column, a clamping hole is arranged through the mounting block, a plurality of connecting columns are fixedly arranged on the side surface of the mounting block, and the other end of the connecting column is fixedly arranged on the inner side of the annular handle.

[0010] Further, the two connecting columns are hingedly connected with an extension column, and the two extension columns are symmetrically arranged.

[0011] Further, the bottom outer edge of the card slot is arc-shaped, and the top of the two sides of the card plate is arc-shaped.

[0012] Further, the positioning column is in the form of a rectangular column, and is matched with the positioning groove.

[0013] Further, the card column is in the form of a hexagonal prism, and is matched with the card hole.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The protective assembly is arranged, the movable column is pressed downward, the card plate is separated from the card slot, the valve rod can be rotated, the opening and closing of the gate valve body is controlled, the movable column is loosened, the movable column is reset under the action of the spring, the card plate is clamped into the card slot, the valve rod is clamped, the gate valve body is prevented from loosening, the gate valve body is prevented from being opened or closed due to accidental touch, and safety and stability are increased.

[0016] 2. The rotating assembly is arranged, the valve rod can be rotated through the annular handle, the annular handle can be removed, the production process is prevented from being disturbed due to the operation of non-working personnel, and safety is increased.

[0017] 3. The extension rod is arranged, when the annular handle is clamped and cannot be smoothly rotated, the user can rotate the annular handle by using the extension rod, more labor is saved, greater force is exerted, the situation that the annular handle is clamped is effectively avoided, smooth operation is ensured, and practicality is increased.

[0018] In summary, the protective assembly is arranged, the valve rod can be limited, the gate valve body is prevented from loosening, and the situation that the gate valve body is opened or closed due to accidental touch is avoided, safety and stability are increased, the rotating assembly is arranged, the annular handle can be removed when not in use, the production process is prevented from being disturbed due to the operation of non-working personnel, safety is increased, the extension rod is arranged, the annular handle can be rotated, the situation that the annular handle is clamped is avoided, and practicality is increased. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a perspective view of the petroleum pipeline gate valve.

[0020] Figure 2 It is a sectional view of the side of the cover of the petroleum pipeline gate valve.

[0021] Figure 3 It is a sectional view of the bottom of the cover of the petroleum pipeline gate valve.

[0022] Figure 4 Part of the three-dimensional schematic view of the petroleum pipeline gate valve is shown in the embodiments of the present application.

[0023] In the above figure: 1 gate valve body, 2 valve stem, 3 cover, 4 positioning column, 5 movable column, 6 spring, 7 clamping plate, 8 annular block, 9 clamping groove, 10 clamping column, 11 mounting block, 12 clamping hole, 13 connecting column, 14 annular handle, 15 extension column. DETAILED DESCRIPTION

[0024] The technical solutions in the present application will be further described below with reference to the drawings and embodiments.

[0025] As Figures 1-4 shown, the embodiments of the present application propose a petroleum pipeline gate valve, comprising:

[0026] The gate valve body 1 is provided with a valve stem 2, and the valve stem 2 is used to control the opening and closing of the gate valve body 1.

[0027] The protection assembly comprises a cover 3, a positioning column 4 and a movable column 5. The cover 3 is fixedly arranged on the gate valve body 1, the valve stem 2 is arranged in the cover 3, the positioning column 4 is fixedly arranged on the valve stem 2, the positioning column 4 is arranged in a rectangular column shape, and the movable column 5 is movably arranged through the top of the cover 3, so that the movable column 5 can slide up and down and can also rotate. The bottom of the movable column 5 is provided with a positioning groove, the positioning column 4 is slidably arranged in the positioning groove, the positioning column 4 is arranged in cooperation with the positioning groove, and the positioning groove is slidably arranged in close contact with the outer side of the positioning column 4. Thus, the movable column 5 rotates the positioning column 4 through the positioning groove, and in turn rotates the valve stem 2. The top of the positioning column 4 is fixedly provided with a spring 6, and the other end of the spring 6 is fixedly arranged at the inner top of the positioning groove. The spring 6 is used to reset the movable column 5. The bottom end of the movable column 5 is fixedly provided with a plurality of clamping plates 7, which are evenly distributed in a circle. The inner top of the cover 3 is fixedly provided with an annular block 8, and the inner side of the annular block 8 is provided with a plurality of clamping grooves 9, which are evenly distributed in a circle. The plurality of clamping plates 7 are slidably arranged by being clamped into the plurality of clamping grooves 9, thereby limiting the movable column 5 to avoid loosening, and in turn avoiding the gate valve body 1 from being opened or closed due to accidental touch. The bottom outer edge of the clamping groove 9 is arranged in an arc shape, and the top of the clamping plate 7 is arranged in an arc shape on both sides, so that the clamping plate 7 can be more smoothly clamped into the clamping groove 9, reducing the mutual abutting of the clamping plate 7 and the bottom of the annular block 8.

[0028] The rotating assembly is used for rotating the valve rod 2, and comprises a mounting block 11 and a ring-shaped rotating handle 14; the top of the movable column 5 is fixedly provided with a clamping column 10 in the shape of a hexagonal prism; the mounting block 11 is provided with a clamping hole 12 penetrating therethrough; the clamping column 10 is arranged in cooperation with the clamping hole 12; the clamping hole 12 is arranged in sliding fit with the outer side of the clamping column 10, so that the mounting block 11 can rotate the clamping column 10 through the clamping hole 12; a plurality of connecting columns 13 are fixedly arranged on the side surface of the mounting block 11, and the other ends of the connecting columns 13 are fixedly arranged on the inner side of the ring-shaped rotating handle 14; and the ring-shaped rotating handle 14 is used for being held by a user.

[0029] Two extension columns 15 are hingedly connected to the two connecting columns 13, respectively; the two extension columns 15 are symmetrically arranged; when the ring-shaped rotating handle 14 is difficult to rotate smoothly due to clamping, the user can unfold the two extension columns 15 as auxiliary tools to rotate the ring-shaped rotating handle 14 by using the two extension columns 15, so that more labor can be saved and more power can be exerted, thereby effectively avoiding the situation that the ring-shaped rotating handle 14 is stuck and ensuring smooth operation.

[0030] The detailed working process of the utility model is as follows:

[0031] 1. When in use, the mounting block 11 is sleeved on the clamping column 10, and then the ring-shaped rotating handle 14 is pressed downward to press the spring 6 and move the movable column 5 and the plurality of clamping plates 7 downward to separate from the clamping grooves 9; at this time, the movable column 5 can be rotated by the ring-shaped rotating handle 14, the movable column 5 rotates the valve rod 2 through the positioning column 4, and then the opening and closing of the gate valve body 1 is controlled.

[0032] 2. After the control is completed, the ring-shaped rotating handle 14 is loosened, the movable column 5 is moved upward to reset under the action of the spring 6, and then the plurality of clamping plates 7 are clamped into the clamping grooves 9 in the corresponding positions, so as to limit the movable column 5 and avoid the rotation of the valve rod 2, thereby avoiding the opening or closing of the gate valve body 1 due to accidental touch.

[0033] 3. Finally, the mounting block 11 is pulled out, and the ring-shaped rotating handle 14 is removed, so that the production process can be avoided from being disturbed by non-working personnel.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited thereto; although the utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the utility model, and all of them should be covered in the scope of the claims of the utility model.

Claims

1. A gate valve for petroleum pipelines, characterized by, The utility model relates to a gate valve with protection function, including: The gate valve body (1) is provided with valve stem (2) on the gate valve body (1); Protective assembly includes cover (3), positioning column (4) and movable column (5), cover (3) is fixedly arranged on the gate valve body (1), valve stem (2) is arranged in cover (3), positioning column (4) is fixedly arranged on valve stem (2), movable column (5) is movably arranged through the top of cover (3), the bottom of movable column (5) is provided with positioning groove, positioning column (4) is slidably arranged in positioning groove, the top of positioning column (4) is fixedly provided with spring (6), the other end of spring (6) is fixedly arranged in the inner top of positioning groove, the bottom end of movable column (5) is fixedly provided with a plurality of clamping plates (7), the inner top of cover (3) is fixedly provided with annular block (8), the inner side of annular block (8) is provided with a plurality of clamping grooves (9); Rotating assembly is used to rotate valve stem (2).

2. A gate valve for petroleum pipelines according to claim 1, characterized in that Wherein: The rotating assembly includes mounting block (11) and annular handle (14), the top of movable column (5) is fixedly provided with clamping column (10), clamping hole (12) is arranged through mounting block (11), a plurality of connecting columns (13) are fixedly arranged on the side of mounting block (11), the other end of connecting column (13) is fixedly arranged in the inner side of annular handle (14).

3. A gate valve for petroleum pipelines according to claim 2, characterized in that Wherein: Two connecting columns (13) are hingedly connected with extension column (15), and two extension columns (15) are symmetrically arranged.

4. A gate valve for petroleum pipelines according to claim 1, characterized in that, Wherein: The bottom of clamping groove (9) is arc-shaped, and the top of clamping plate (7) is arc-shaped.

5. A gate valve for petroleum pipelines according to claim 1, characterized in that Wherein: Positioning column (4) is rectangular column, and positioning column (4) is arranged in cooperation with positioning groove.

6. A gate valve for petroleum pipelines according to claim 2, characterized in that Wherein: Clamping column (10) is hexagonal column, and clamping column (10) is arranged in cooperation with clamping hole (12).

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