Petroleum and gas pipeline test pile door

By designing a detachable test pile gate for oil and gas pipelines, and utilizing a combination structure of baffles and plates or cards with locks, the problems of high maintenance difficulty, high cost, and safety hazards in existing technologies are solved, enabling rapid and safe maintenance and replacement.

CN224135697UActive Publication Date: 2026-04-17SHENYANG TIANSHIDAO TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG TIANSHIDAO TECHNOLOGY CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The maintenance of existing oil and gas pipeline test pile gates is difficult, costly, and poses safety hazards, especially when maintenance is carried out in the field.

Method used

A test gate for oil and gas pipelines was designed, which adopts a combination structure of a stop bar and a baffle or card with a lock body to achieve a detachable connection, avoiding cutting and welding, and enabling quick replacement of the gate by rotating the lock body.

Benefits of technology

It reduces the difficulty and cost of repair and replacement, avoids the safety hazards caused by cutting and welding, and improves the safety and efficiency of repair.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a petroleum and natural gas pipeline test pile door, relates to the technical field of natural gas pipeline test equipment, and aims to solve the problems of high maintenance difficulty, high maintenance cost and potential safety hazards of the test pile door. The test pile body is provided with a window for detection, the test pile body is provided with a detection box corresponding to the window, the detection box is detachably connected with a rectangular pile door body, and the pile door body is provided with a lock body for locking the pile door body.
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Description

Technical Field

[0001] This utility model relates to the technical field of natural gas pipeline testing equipment, specifically to a test pile gate for oil and gas pipelines. Background Technology

[0002] Natural gas pipeline test piles are important facilities used to monitor, maintain, and evaluate the operational status of pipeline systems, playing a key role, especially in corrosion protection, leak detection, and pipeline integrity management.

[0003] With the operation of pipelines in service, the corrosion, damage, and loss of test piles, especially the pile gates, of domestic oil and gas pipelines are very serious, affecting the appearance integrity and the inspection and evaluation process. Currently, the pile gates of test piles are all connected to the test piles via rotating shafts and are original equipment manufacturer (OEM) products. Products from different manufacturers vary significantly in shape, size, and opening / closing methods, resulting in poor maintenance compatibility. Furthermore, maintenance requires on-site cutting and welding, but since test piles are generally installed in the field, and cutting and welding require specific equipment, this undoubtedly increases the difficulty and cost of field maintenance. Additionally, because test piles are used for testing oil and gas pipelines, using cutting and welding equipment for maintenance carries a high risk factor, leading to significant safety hazards during the maintenance process. Utility Model Content

[0004] To address the aforementioned issues—namely, the high difficulty and cost of maintaining test pile gates, as well as the potential safety hazards—this utility model proposes a test pile gate for oil and gas pipelines. The gate includes a test pile body with a window for testing. A testing box is installed on the test pile body corresponding to the window. A rectangular gate body is detachably connected to the testing box, and a lock is installed on the gate body for securing it.

[0005] A further feature of this invention is that: a stop bar is vertically arranged inside the detection box, the stop bar is tangent to one side surface of the detection box, two baffles are arranged on the side surface of the detection box opposite to the stop bar, the outer surface of the pile gate body abuts against the stop bar, the inner surface of the pile gate body abuts against one of the outer baffles, and the locking plate of the lock body abuts against one of the inner baffles, thereby locking the pile gate body.

[0006] This utility model also proposes a test pile gate for oil and gas pipelines, which includes a test pile body, a window for testing is provided on the test pile body, an arc-shaped pile gate body is detachably connected to the window, and a lock body for locking the pile gate body is installed on the pile gate body.

[0007] A further feature of this invention is that two cards are installed on the inner surface of the pile gate body, and the two cards are symmetrically arranged about the axis of the test pile body to be snapped into the bottom edge of the window.

[0008] A further feature of this invention is that the card is L-shaped.

[0009] A further feature of this invention is that a vertically planar locking part is provided on the inner wall of the test pile body, and the locking piece of the lock body abuts against the locking part to lock the pile gate body.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. By cooperating with the stop bar and two baffles and the lock body, the main body of the pile gate can be locked, and it can also be detached. Therefore, when the main body of the pile gate is corroded, damaged or lost, the main body of the pile gate can be repaired or replaced more quickly. The repair and replacement process does not require cutting and welding, which further reduces the difficulty and cost of repair and replacement, and also avoids the safety hazards caused by cutting and welding.

[0012] 2. The combination of the card and the lock body can achieve the locking effect of the gate body and also achieve the purpose of detachable connection. Therefore, when the gate body is corroded, damaged or lost, the gate body can be repaired or replaced more quickly. The repair and replacement process does not require cutting and welding, which further reduces the difficulty and cost of repair and replacement, and also avoids the safety hazards caused by cutting and welding. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of Embodiment 1 is shown.

[0014] Figure 2 A partial cross-sectional view of Embodiment 1 is shown.

[0015] Figure 3 A schematic diagram of the structure of Embodiment 2 is shown.

[0016] Figure 4 A partial cross-sectional view of Embodiment 2 is shown.

[0017] Figure 5 A schematic diagram of the structure of the pile gate body in Embodiment 2 is shown.

[0018] Reference numerals in the attached drawings: 1. Test pile body; 11. Window; 12. Clamping part; 2. Testing box; 21. Stop bar; 22. Baffle; 3. Pile gate body; 31. Lock body; 32. Card. Detailed Implementation

[0019] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0020] Example 1

[0021] This utility model proposes a test pile gate for oil and gas pipelines, including a test pile body 1, on which a test window 11 is provided for testing.

[0022] A test box 2 is welded to the test pile body 1 corresponding to the window 11. A rectangular pile door body 3 is detachably connected to the test box 2. A lock body 31 for locking the pile door body 3 is installed on the pile door body 3. The lock hole of the lock body 31 is located on the outer surface of the pile door body 3, and the lock plate of the lock hole is located on the inner side of the pile door body 3.

[0023] A vertical stop bar 21 is installed inside the testing box 2. The two ends of the stop bar 21 are welded to the upper and lower surfaces of the testing box 2, respectively. The stop bar 21 is tangent to one side of the testing box 2. Two baffles 22 are welded to the side of the testing box 2 facing away from the stop bar 21. The two stop bars 21 are arranged parallel to each other. The outer surface of the pile gate body 3 abuts against the stop bar 21, and the inner surface of the pile gate body 3 abuts against the outer baffle 22, thereby locking the pile gate body 3.

[0024] When the lock cylinder of the lock body 31 is turned with the key, the lock plate can rotate accordingly. When the lock plate rotates to the vertical position, the lock plate will no longer abut against the baffle 22. At this time, the gate can be directly removed. When the lock plate rotates to the horizontal position and the lock plate is located on one side of the baffle 22, the gate body 3 can be locked onto the detection box 2.

[0025] In summary, the locking effect of the gate body 3 can be achieved by the cooperation of the stop bar 21 and the two baffles 22 with the lock body 31, and the purpose of detachable connection can also be achieved. Therefore, when the gate body 3 is corroded, damaged or lost, the gate body 3 can be repaired or replaced more quickly. The repair and replacement process does not require cutting and welding, which further reduces the difficulty and cost of repair and replacement, and also avoids the safety hazards caused by cutting and welding.

[0026] Example 2

[0027] This embodiment discloses a test pile gate for oil and gas pipelines, including a test pile body 1, on which a window 11 for testing is provided.

[0028] A curved gate body 3 is detachably connected to the window 11, and a lock body 31 for locking the gate body 3 is installed on the gate body 3.

[0029] Two cards 32 are installed on the inner surface of the pile gate body 3. The cards 32 are set in an L-shape and are symmetrical about the axis of the test pile body 1. The two cards 32 are snapped into the bottom edge of the window 11 to achieve the function of supporting and snapping the pile gate body 3.

[0030] A vertically planar clamping part 12 is integrally provided on the inner wall of the test pile body 1. The clamping part 12 is located at the top of the window 11. The lock hole of the lock body 31 is located on the outer surface of the pile door body 3. The lock plate is located on the inner side of the pile door body 3. The lock plate can extend into the window 11 and abut against the clamping part 12 to lock the pile door body 3.

[0031] When the lock cylinder of the lock body 31 is turned with the key, the lock plate can rotate accordingly. When the lock plate rotates to a horizontal position, the lock plate will no longer abut against the locking part 12. At this time, the gate body 3 can be lifted upwards to disengage the card 32 from the window 11, and then the gate body 3 can be removed. When the lock plate rotates to a vertical position and is located on one side of the locking part 12, the lock plate will abut against the locking part 12, and the gate body 3 will be locked onto the window 11.

[0032] In summary, this utility model, through the cooperation of the card 32 and the lock body 31, can achieve the locking effect of the pile gate body 3 and also achieve the purpose of detachable connection. Therefore, when the pile gate body 3 is corroded, damaged or lost, the repair and replacement of the pile gate body 3 can be achieved more quickly. The repair and replacement process does not require cutting and welding, which further reduces the difficulty and cost of repair and replacement, and also avoids the safety hazards caused by cutting and welding.

[0033] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0034] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0037] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A test pile gate for petroleum and natural gas pipeline testing, comprising a test pile body (1) having a window (11) for detection, characterized in that: A test box (2) is installed on the test pile body (1) corresponding to the window (11). A rectangular pile door body (3) is detachably connected to the test box (2). A lock body (31) for locking the pile door body (3) is installed on the pile door body (3). A stop bar (21) is vertically arranged inside the test box (2). Two baffles (22) are arranged on the side surface of the test box (2) away from the stop bar (21). The outer surface of the pile door body (3) abuts against the stop bar (21), and the inner surface of the pile door body (3) abuts against one of the baffles (22) located on the outside.

2. The petroleum and natural gas pipeline test pad pig door of claim 1, wherein: The stop bar (21) is tangent to one side surface of the detection box (2), and the locking plate of the lock body (31) abuts against a baffle (22) located on the inner side to lock the pile gate body (3).

3. A test pile gate for petroleum and natural gas pipeline testing, comprising a test pile body (1) having a window (11) for detection, characterized in that: An arc-shaped pile gate body (3) is detachably connected to the window (11). A lock body (31) for locking the pile gate body (3) is installed on the pile gate body (3). Two cards (32) are installed on the inner surface of the pile gate body (3). The two cards (32) are symmetrically arranged about the axis of the test pile body (1) to be snapped into the bottom edge of the window (11).

4. The oil and gas pipeline test pad piggy gate of claim 3, wherein: The card (32) is configured in an L-shape.

5. The petroleum and natural gas pipeline test pad pit door of claim 3, wherein: The test pile body (1) has a vertically planar locking part (12) on its inner wall. The locking piece of the lock body (31) abuts against the locking part (12) to lock the pile gate body (3).