Petroleum pipeline plugging flashboard

Abstract

The utility model belongs to the technical field of petroleum pipelines, and particularly relates to a petroleum pipeline plugging flashboard which comprises a petroleum pipeline gate valve, an oil inlet is formed in the petroleum pipeline gate valve, a flashboard body is slidably connected into the petroleum pipeline gate valve, and a sealing gasket is fixedly connected to the inner wall of the petroleum pipeline gate valve and located below the flashboard body. A limiting rod is fixedly connected to the side, close to the gate plate body, of the interior of the petroleum pipeline gate valve, sealing plates are slidably connected to the two sides of the exterior of the limiting rod, and a transmission assembly is arranged in the petroleum pipeline gate valve. The utility model provides a petroleum pipeline plugging flashboard which solves the problems that in the prior art, plugging and sealing of petroleum are achieved through single flashboard lifting of a valve, but the flashboard can be loosened due to abrasion and interaction force after being used for a long time, so that the sealing performance is reduced, and seriously, fluid leakage can be caused.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of petroleum pipeline, specifically is a petroleum pipeline plugging gate. BACKGROUND

[0002] In the transportation of petroleum by pipeline, various valves are needed on some high-pressure pipelines to obtain the functions of cutoff, discharge, etc. to achieve different purposes. According to the actual situation, some valves need to have multiple functions, but the valves in some places only serve to block the flow of petroleum. In this case, a gate with a relatively simple structure and low cost can be used.

[0003] The valve in the prior art only realizes the plugging and sealing of petroleum by the lifting of a single gate. However, the gate will loosen due to wear and interaction force after long-term use, thereby reducing the sealing performance and even causing fluid leakage in severe cases. UTILITY MODEL CONTENTS

[0004] In view of the above problems in the prior art, the main purpose of the utility model is to provide a petroleum pipeline plugging gate.

[0005] The technical scheme of the utility model is as follows: a petroleum pipeline plugging gate, comprising a petroleum pipeline gate valve, an oil inlet is formed in the inside of the petroleum pipeline gate valve, a gate body is slidably connected in the inside of the petroleum pipeline gate valve, a sealing gasket is fixedly connected to the inner wall of the petroleum pipeline gate valve below the gate body, a limiting rod is fixedly connected to the side of the petroleum pipeline gate valve close to the gate body, sealing plates are slidably connected to the outer sides of the limiting rod, and a transmission assembly is arranged in the inside of the petroleum pipeline gate valve.

[0006] As a preferred embodiment, the transmission assembly comprises a fixed frame and a linkage unit, the fixed frame is fixedly connected to the top of the petroleum pipeline gate valve, a threaded rod is rotatably connected to the top of the inside of the petroleum pipeline gate valve, the gate body is threadedly connected to the outside of the threaded rod, and the sealing plates can slide through the linkage unit.

[0007] As a preferred embodiment, the linkage unit comprises a first gear, the first gear is fixedly connected to the top of the outside of the threaded rod, a worm is rotatably connected to the side of the inside of the petroleum pipeline gate valve close to the threaded rod, a second gear is fixedly connected to the top of the worm, the first gear and the second gear are meshingly connected, a bidirectional screw rod is rotatably connected to the side of the inside of the petroleum pipeline gate valve close to the worm, the bidirectional screw rod is fixedly connected to the outside of a worm wheel, the worm and the worm wheel are meshingly connected, and the two sealing plates are threadedly connected to the outer sides of the bidirectional screw rod.

[0008] As a preferred implementation form, the gate body and the sealing plate are both in sliding connection with the inner wall of the petroleum pipeline gate valve, and the gate body and the sealing plate are both in close contact with the inner wall of the petroleum pipeline gate valve.

[0009] As a preferred implementation form, the top of the threaded rod is fixedly connected with a rotating disc, the outer sides of the petroleum pipeline gate valve are both fixedly connected with a flange plate, and the inner side of the flange plate is equidistantly provided with a mounting hole.

[0010] As a preferred implementation form, the outer sides and the inner sides of the two sealing plates are both provided with sealing layers.

[0011] The petroleum pipeline gate valve has the following beneficial effects.

[0012] The device realizes double sealing by the cooperation of the two sealing plates and the gate body for the plugging of the oil inlet, effectively improves the sealing effect of the petroleum pipeline gate valve, avoids the loosening of the gate body or the sealing gasket due to the abrasion and the interaction force after long-term use, and thus avoids the problem of affecting the sealing effect, and the flange plate and the mounting hole can be used to connect the device with the petroleum pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0013] The petroleum pipeline gate valve will be further described below with reference to the drawings.

[0014] Figure 1 It is a perspective view of the petroleum pipeline gate valve;

[0015] Figure 2 It is a first sectional view of the petroleum pipeline gate valve;

[0016] Figure 3 It is a second sectional view of the petroleum pipeline gate valve;

[0017] Figure 4 It is a third sectional view of the petroleum pipeline gate valve;

[0018] Figure 5 It is a perspective view of the petroleum pipeline gate valve; Figure 3 It is an enlarged view of A in the petroleum pipeline gate valve;

[0019] Figure 6 It is a perspective view of the petroleum pipeline gate valve; Figure 4 It is an enlarged view of B in the petroleum pipeline gate valve.

[0020] In the drawings: 1, petroleum pipeline gate valve; 2, oil inlet; 3, gate body; 4, sealing gasket; 5, limiting rod; 6, sealing plate; 7, fixing frame; 8, threaded rod; 9, first gear; 10, worm; 11, second gear; 12, bidirectional screw; 13, worm gear; 14, rotating disc; 15, flange plate; 16, mounting hole. DETAILED DESCRIPTION

[0021] In order to make the technical means, creation characteristics, achieve the purpose and effect of the utility model easy to understand, the following will be further described in conjunction with specific embodiments.

[0022] Please refer to Figures 1-6 The utility model relates to an oil pipeline plugging gate plate, including oil pipeline gate valve 1, the inside of oil pipeline gate valve 1 is set up and enters the oil port 2, the inside sliding joint of oil pipeline gate valve 1 has the gate plate main part 3, the inner wall of oil pipeline gate valve 1 and be located the below fixed connection of gate plate main part 3 has sealing pad 4, the inside fixed connection of oil pipeline gate valve 1 is close to the side of gate plate main part 3 and is limited to the rod 5, the both sides of the outside of limit rod 5 all sliding joint has sealing plate 6, the inside setting of oil pipeline gate valve 1 has transmission assembly.

[0023] Specifically, transmission assembly includes fixed frame 7 and linkage unit, fixed frame 7 fixed connection in the top of oil pipeline gate valve 1, the inside upper rotation of oil pipeline gate valve 1 is connected with screw rod 8, the gate plate main part 3 is connected on the outside of screw rod 8, sealing plate 6 can slide through linkage unit, linkage unit includes first gear 9, first gear 9 fixed connection on the outside upper of screw rod 8, the inside close to the side of screw rod 8 of oil pipeline gate valve 1 rotation is connected with worm 10, the top fixed connection of worm 10 has second gear 11, first gear 9 and second gear 11 meshed connection, the inside close to the side of worm 10 of oil pipeline gate valve 1 rotation is connected with two -way screw 12, the outside fixed connection of two -way screw 12 has worm wheel 13, meshed connection between worm 10 and worm wheel 13, two sealing plate 6 are respectively connected on the outside both sides of two -way screw 12.

[0024] By the above technical scheme, when the gate valve 1 needs to be sealed by the gate body 3, the rotary disc 14 is rotated to drive the threaded rod 8 to rotate, so that the threaded rod 8 drives the gate body 3 to move downward through the threaded connection, until the gate body 3 moves to the lowermost position and is tightly attached to the sealing gasket 4, so that the oil inlet 2 is sealed, thereby completing the isolation of the pipeline and achieving the sealing of the oil to prevent fluid leakage. During the rotation of the threaded rod 8, the first gear 9 can be driven to rotate synchronously, so that the first gear 9 drives the second gear 11 and the worm 10 to rotate through the meshing relationship, and the worm 10 drives the worm wheel 13 and the bidirectional screw 12 to rotate through the meshing relationship, so that the bidirectional screw 12 drives the two sealing plates 6 to move inward through the threaded connection, until the two sealing plates 6 complete the sealing of the oil inlet 2. The gate body 3 and the sealing gasket 4 can realize effective sealing of the oil inlet 2, avoiding loosening of the gate body 3 or the sealing gasket 4 due to wear and interaction force after long-term use, thereby affecting the sealing effect. The device realizes double sealing of the oil inlet 2 by the two sealing plates 6 cooperating with the gate body 3, effectively improves the sealing effect of the oil pipeline gate valve 1, and avoids loosening of the gate body 3 or the sealing gasket 4 due to wear and interaction force after long-term use, thereby affecting the sealing effect.

[0025] Specifically, the gate body 3 and the sealing plate 6 are slidably connected with the inner wall of the oil pipeline gate valve 1, and the gate body 3 and the sealing plate 6 are attached to the inner wall of the oil pipeline gate valve 1. The top of the threaded rod 8 is fixedly connected with the rotary disc 14. The outer sides of the oil pipeline gate valve 1 are fixedly connected with the flange plates 15. The inside of the flange plate 15 is equally provided with the mounting holes 16. The outer sides and the inner sides of the two sealing plates 6 are provided with sealing layers.

[0026] Through the above technical scheme, the device can be connected with the oil pipeline through the flange plate 15 cooperating with the mounting hole 16.

[0027] When sealing the oil pipeline gate valve 1 via the gate body 3, the turntable 14 is rotated, causing the threaded rod 8 to rotate. This causes the threaded rod 8 to move the gate body 3 downwards through the threaded connection until it reaches its lowest point and is tightly pressed against the sealing gasket 4. This seals the oil inlet 2, isolating the pipeline and preventing oil leakage. During the rotation of the threaded rod 8, the external first gear 9 rotates synchronously. The first gear 9, through meshing, drives the second gear 11 and worm gear 10 to rotate. The worm gear 10, in turn, meshes with the worm wheel 13 and double-acting screw 12, causing the double-acting screw 12 to rotate through the threaded connection. The system moves the sealing plates 6 on both sides inward until they seal the oil inlet 2. This, combined with the gate body 3, effectively seals the oil inlet 2, preventing the gate body 3 or sealing gasket 4 from loosening due to wear and interaction forces after long-term use, which would affect the sealing effect. This device achieves double sealing by using two sealing plates 6 in conjunction with the gate body 3 to block the oil inlet 2, effectively improving the sealing effect of the oil pipeline gate valve 1. It also prevents the gate body 3 or sealing gasket 4 from loosening due to wear and interaction forces after long-term use, which would affect the sealing effect. The device can be connected to the oil pipeline through the flange 15 and the mounting hole 16.

[0028] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 limiting the scope of protection of this utility model.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A petroleum pipeline blanking gate, comprising a petroleum pipeline gate valve (1), characterized in that, The inside of the petroleum pipeline gate valve (1) is provided with an oil inlet (2), the inside of the petroleum pipeline gate valve (1) is slidably connected with a gate body (3), the inner wall of the petroleum pipeline gate valve (1) and below the gate body (3) is fixedly connected with a sealing pad (4), the inside of the petroleum pipeline gate valve (1) is fixedly connected with a limiting rod (5) on the side close to the gate body (3), the outer sides of the limiting rod (5) are slidably connected with sealing plates (6), and the inside of the petroleum pipeline gate valve (1) is provided with a transmission assembly.

2. A pipe plug as claimed in claim 1, wherein, The transmission assembly comprises a fixed frame (7) and a linkage unit, the fixed frame (7) is fixedly connected to the top of the petroleum pipeline gate valve (1), a threaded rod (8) is rotatably connected to the upper part of the inside of the petroleum pipeline gate valve (1), the gate body (3) is threadedly connected to the outside of the threaded rod (8), and the sealing plates (6) can slide through the linkage unit.

3. A pipe plug as claimed in claim 2, wherein, The linkage unit comprises a first gear (9), the first gear (9) is fixedly connected to the upper part of the outside of the threaded rod (8), a worm (10) is rotatably connected to the side close to the threaded rod (8) of the inside of the petroleum pipeline gate valve (1), a second gear (11) is fixedly connected to the top of the worm (10), the first gear (9) and the second gear (11) are meshedly connected, a bidirectional screw (12) is rotatably connected to the side close to the worm (10) of the inside of the petroleum pipeline gate valve (1), a worm wheel (13) is fixedly connected to the outside of the bidirectional screw (12), the worm (10) and the worm wheel (13) are meshedly connected, and the two sealing plates (6) are threadedly connected to the outer sides of the bidirectional screw (12) respectively.

4. A pipe plug as claimed in claim 3, wherein, The gate body (3) and the sealing plates (6) are slidably connected with the inner wall of the petroleum pipeline gate valve (1), and the gate body (3) and the sealing plates (6) are attached to the inner wall of the petroleum pipeline gate valve (1).

5. A pipe plug as claimed in claim 4, wherein, The top of the threaded rod (8) is fixedly connected with a rotating disc (14), the outer sides of the petroleum pipeline gate valve (1) are fixedly connected with flange plates (15), and the inside of the flange plate (15) is equidistantly provided with mounting holes (16).

6. A pipe plug as claimed in claim 5, wherein, The outer sides and the inner sides of the two sealing plates (6) are provided with sealing layers.

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