A quick-clamping structure for an oil and gas pipeline weld inspection probe

Abstract

This utility model discloses a quick-clamping structure for an oil and gas pipeline weld inspection probe, belonging to weld inspection equipment. It includes a first connecting member and a second connecting member. The probe body is detachably mounted on the second connecting member in the vertical direction. The first connecting member has a downward-opening fan-shaped cavity. The upper end of the probe body extends to the top of the fan-shaped cavity. When there is a predetermined distance between the first and second connecting members, the probe body can swing at a predetermined angle within the central angle range of the fan-shaped cavity. In the vertical state, the probe body is engaged with the first connecting member via a locking component. This structure allows the probe body to be in a rotatable or vertical state by changing the distance between the first and second connecting members, and the probe body can be removed or fixed according to the two different states, thus achieving a quick-clamping effect. It features low installation time, high efficiency, and simple structure.

Description

Technical Field

[0001] This utility model relates to the technical field of weld inspection equipment, and in particular to a quick clamping structure for an oil and gas pipeline weld inspection probe. Background Technology

[0002] In oil and gas pipeline projects, multiple pipelines are usually connected by welding. After the pipeline welding is completed, the circumferential weld of the pipeline needs to be inspected. If the inspection result of the circumferential weld is unqualified, it needs to be re-welded to ensure the welding quality.

[0003] In the inspection of weld seams in oil and gas pipelines, the structural characteristics of circumferential welds and the relatively small size of the inspection probes make the process cumbersome, especially for larger diameter pipelines. It requires walking around the pipeline with the probe in hand to complete the inspection, affecting the accuracy of the results. To address this issue, existing technologies typically employ a walking mechanism to fix the probe at a designated position on the mechanism. For example, patent application CN202222152792.7 discloses a probe support device for circumferential weld seams in oil and gas pipelines, which uses a mounting plate to fix the probe; another example is patent application CN202322942353.0, which discloses a probe clamping device for weld seams in oil and gas pipelines, which connects the probe via a probe assembly plate. In these existing technologies, bolts are typically used to mount the probe onto the mounting plate or assembly plate, and the probe is then removed after use, a cumbersome and time-consuming process. Therefore, there is an urgent need for a structure that can quickly clamp the probe. Utility Model Content

[0004] The purpose of this utility model is to propose a quick clamping structure for an oil and gas pipeline weld inspection probe, so as to solve the problem of cumbersome and inefficient installation of the inspection probe, and enable the inspection probe to be quickly clamped to complete the weld inspection.

[0005] To achieve the above objectives, the following technical solution is adopted: a quick-clamping structure for an oil and gas pipeline weld inspection probe, comprising a first connector and a second connector. The second connector is detachably fitted with a probe body in the vertical direction. The first connector has a downward-opening fan-shaped cavity. The upper end of the probe body extends to the top of the fan-shaped cavity. When there is a predetermined distance between the first and second connectors, the probe body can swing at a predetermined angle within the central angle range of the fan-shaped cavity. In the vertical state, the probe body is engaged with the first connector via a locking component. This solution allows the probe body to be in a vertical or rotatable state within the fan-shaped cavity by changing the distance between the first and second connectors. When the probe body is in the vertical state, the locking component limits its vertical movement, resulting in the minimum distance between the first and second connectors. The lower end face of the first connector is in contact with the upper end face of the second connector, restricting the rotation of the probe body, thus keeping it in a fixed state. When the distance between the first and second connectors is larger, the probe body is rotatable, allowing it to be removed when rotated to a predetermined angle. Therefore, this structure allows the probe body to be in a rotatable or vertical state by changing the distance between the first and second connectors, and the probe body can be removed or fixed according to the two different states, thereby achieving the effect of quick clamping.

[0006] Preferably, the lower end of the first connector has a first abutting surface, and the upper end of the second connector has a second abutting surface. When the probe body is engaged with the first connector, the first abutting surface and the second abutting surface are in contact, thereby restricting the rotation of the probe body and keeping the probe body in a fixed state.

[0007] Preferably, the second connecting member includes a first movable plate, a second movable plate, and a plurality of elastic members connected between the first movable plate and the second movable plate. The first movable plate is provided with a first mounting hole, and the second movable plate is provided with a second mounting hole with a diameter smaller than the first mounting hole. The probe body includes a rotating part that slides with the first mounting hole and a probe connected to the lower end of the rotating part and slidingly engaging with the second mounting hole. This design, by pressing down the first movable plate, causes it to move away from the first connecting member, and the elastic members are compressed until the distance between the first movable plate and the first connecting member is at its maximum. At this point, the probe body can rotate a predetermined angle and be withdrawn from the fan-shaped cavity. Furthermore, because the probe body slides with the second mounting hole of the first mounting hole, the probe body can be withdrawn from the fan-shaped cavity and then pulled out of the second connecting member. This allows the probe body to be stored together with the weld inspection instrument after inspection, ensuring that the equipment's inspection function is not affected.

[0008] Preferably, the locking component includes a locking hole on the rotating part and a locking rod on the inner wall of the fan-shaped cavity, with a fitting clearance between the locking rod and the locking hole. This solution involves pressing down the first moving plate, causing it to move away from the first connecting member. The elastic element is compressed until the distance between the first moving plate and the first connecting member is at its maximum. At this point, the probe body can rotate a predetermined angle to disengage the locking hole from the locking rod, thereby allowing the probe body to be removed and stored.

[0009] Preferably, the first connector has a threaded hole communicating with the sector cavity, and the clamping rod has an external thread that is threadedly connected to the threaded hole. In this design, depending on whether locking is required, the clamping rod is rotated to extend into the sector cavity a predetermined distance. In this state, the rotation of the probe body is restricted. Therefore, while achieving the aforementioned quick clamping effect, the operator can choose whether locking is necessary.

[0010] Preferably, the inner wall of the top of the sector cavity has a first rotating surface, and the upper end of the rotating part has a second rotating surface that cooperates with the first rotating surface, so that the rotating part fits better during rotation.

[0011] Preferably, the first movable plate has pressing plates rotatably connected to both ends via connecting shafts, so that the structure can be adapted to the inspection of pipes of different sizes.

[0012] Preferably, the connecting shaft is a damping shaft.

[0013] Preferably, the elastic element is a spring.

[0014] The beneficial effects achieved by this utility model are as follows: Compared to existing technologies, this utility model provides a quick-clamping structure for an oil and gas pipeline weld inspection probe. This structure adjusts the distance between the first and second connecting members to allow the probe body to be in a vertical or rotatable state within a fan-shaped cavity. When the probe body is vertical, the locking mechanism limits its vertical position, with the lower end face of the first connecting member and the upper end face of the second connecting member in contact, restricting the probe body's rotation and thus fixing it in a fixed state. When the distance between the first and second connecting members is greater, the probe body is rotatable, allowing it to be removed when rotated to a predetermined angle. Therefore, this structure achieves quick clamping by adjusting the distance between the first and second connecting members to allow the probe body to be in either a rotatable or vertical state, and by removing or fixing the probe body according to these two different states. Compared to existing technologies, this utility model features low installation time, high efficiency, and a simple structure. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0017] Figure 3 This is an internal sectional view of the present invention.

[0018] In the figure: First connector-1, sector cavity-11, second connector-2, first moving plate-21, second moving plate-22, elastic element-23, first mounting hole-211, second mounting hole-222, probe body-3, rotating part-31, probe-32, locking element-4, locking hole-41, locking rod-42. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "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 limitations on this utility model.

[0021] In the inspection of weld seams in oil and gas pipelines, the structural characteristics of circumferential welds and the relatively small size of the inspection probes make the process cumbersome, especially for larger diameter pipelines. It is often necessary to walk around the pipeline with the probe in hand to complete the inspection. Therefore, existing technologies typically employ a walking mechanism, with the inspection probe mounted at a designated position on the mechanism for easier inspection. After inspection, the probe needs to be removed and stored along with the weld inspection instrument to ensure its functionality and prevent detection failure due to harsh environments caused by prolonged installation in the designated position. To enable faster installation of the inspection probe onto the appropriate device for weld seam inspection, this invention proposes a quick-clamping structure for oil and gas pipeline weld seam inspection probes. Please refer to the appendix. Figure 1-3The device includes a first connector 1 and a second connector 2. The second connector 2 is detachably fitted with a probe body 3 along a vertical direction. The first connector 1 has a downward-opening fan-shaped cavity 11, and its upper end is fixed at a designated position, such as to a mounting plate or probe assembly plate in the prior art, or it can be used independently. The upper end of the probe body 3 extends to the top of the fan-shaped cavity 11. When there is a predetermined distance between the first connector 1 and the second connector 2, the probe body 3 can swing at a predetermined angle within the central angle range of the fan-shaped cavity 11. In a vertical state, the probe body 3 is engaged with the first connector 1 via a locking member 4. This structure... By changing the distance between the first connector 1 and the second connector 2, the probe body 3 can be positioned vertically or rotatably within the fan-shaped cavity 11. When the probe body 3 is vertical, the locking member 4 limits its vertical movement, resulting in the smallest distance between the first connector 1 and the second connector 2. For example, when the lower end face of the first connector 1 is in contact with the upper end face of the second connector 2, the rotation of the probe body 3 is restricted, thus keeping the probe body in a fixed state. When the distance between the first connector 1 and the second connector 2 is larger, the probe body 3 can be rotatable, allowing it to be removed when rotated to a predetermined angle. Therefore, this structure allows the probe body to be positioned in either a rotatable or vertical state by changing the distance between the first connector 1 and the second connector 2, and the probe body can be removed or locked depending on the two states, achieving a quick clamping effect. Compared to existing technologies, this invention features low installation time, high efficiency, and a simple structure.

[0022] In this embodiment, the lower end of the first connector 1 has a first abutting surface, and the upper end of the second connector 2 has a second abutting surface. When the probe body 3 is engaged with the first connector 1, the first abutting surface and the second abutting surface are in contact. When the probe body 3 is in a vertical state, the engaging member 4 limits its vertical position. At this time, the first abutting surface of the first connector 1 is in contact with the second abutting surface of the second connector, thereby restricting the rotation of the probe body 3 and keeping the probe body 3 in a fixed state.

[0023] In this embodiment, specifically, the second connecting member 2 includes a first moving plate 21, a second moving plate 22, and a plurality of elastic members 23 connected between the first moving plate 21 and the second moving plate 22. The elastic members 23 are springs. The first moving plate 21 is provided with a first mounting hole 211, and the second moving plate 22 is provided with a second mounting hole 222 with a diameter smaller than the first mounting hole 211. The probe body 3 includes a rotating part 31 that slides with the first mounting hole 211 and a probe 32 connected to the lower end of the rotating part 31 and slidingly engaging with the second mounting hole 222. In this embodiment, by pressing down the first moving plate 21, the first moving plate 21 moves away from the first connecting member relative to the second moving plate 22. The elastic member 23 is in a compressed state until the distance between the first moving plate 21 and the first connecting member is at its maximum. Then, the probe body 3 can rotate at a predetermined angle and be pulled out from the fan-shaped cavity 11. Furthermore, since the probe body 3 is slidably fitted with the second mounting hole 222 of the first mounting hole 211, the probe body 3 can be pulled out from the second connecting member after being pulled out from the fan-shaped cavity 11. This allows the probe body 3 to be stored together with the weld inspection instrument after the inspection is completed, so as to ensure that the inspection function of the equipment is not affected.

[0024] In this embodiment, the locking component 4 includes a locking hole 41 disposed on the rotating part 31 and a locking rod 42 disposed on the inner wall of the fan-shaped cavity 11, and the locking rod 42 and the locking hole 41 have a fitting gap. In this embodiment, by pressing down the first moving plate 21, the first moving plate 21 moves away from the first connecting member relative to the second moving plate 22, and the elastic member 23 is in a compressed state until the distance between the first moving plate 21 and the first connecting member is the maximum. Then, the probe body 3 can rotate a predetermined angle to disengage the locking hole 41 from the locking rod 42, thereby removing and storing the probe body 3.

[0025] In this embodiment, as an optional method of the above embodiments, the first connector 1 is provided with a threaded hole communicating with the sector cavity 11, and the clamping rod 42 is provided with an external thread and threadedly connected to the threaded hole. In this embodiment, the clamping rod 42 can be rotated as needed to extend into the sector cavity 11 by a predetermined distance. In this state, the rotation of the probe body 3 is restricted. Therefore, while achieving the above-mentioned quick clamping effect, the operator can choose whether to lock it in place.

[0026] In this embodiment, the inner wall of the top of the fan-shaped cavity 11 has a first rotating surface, and the upper end of the rotating part 31 has a second rotating surface that cooperates with the first rotating surface, so that the rotating part 31 fits better during rotation.

[0027] In this embodiment, the first movable plate 21 is rotatably connected to the pressing plate 24 at both ends via connecting shafts, so that the structure can adapt to the detection of pipes of different sizes and automatically engage. The connecting shaft is a damping rotating shaft; or a torsion spring is installed on the connecting shaft, with one end of the torsion spring fixed on the first movable plate and the other end fixed on the pressing plate.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-clamping structure for an oil and gas pipeline weld inspection probe, comprising a first connecting member (1) and a second connecting member (2), characterized in that, The second connector (2) is detachably provided with a probe body (3) in the vertical direction. The first connector (1) has a downward-opening fan-shaped cavity (11) inside. The upper end of the probe body (3) extends to the top of the fan-shaped cavity (11). When there is a predetermined distance between the first connector (1) and the second connector (2), the probe body (3) can swing at a predetermined angle within the central angle range of the fan-shaped cavity (11). The probe body (3) is engaged with the first connector (1) in the vertical state through a locking member (4).

2. The quick-clamping structure for the oil and gas pipeline weld inspection probe according to claim 1, characterized in that: The first connector (1) has a first abutting surface at its lower end and the second connector (2) has a second abutting surface at its upper end. When the probe body (3) is engaged with the first connector (1), the first abutting surface and the second abutting surface are in contact.

3. The quick-clamping structure for the oil and gas pipeline weld inspection probe according to claim 1, characterized in that: The second connector (2) includes a first movable plate (21), a second movable plate (22), and a plurality of elastic members (23) connected between the first movable plate (21) and the second movable plate (22). The first movable plate (21) is provided with a first mounting hole (211), and the second movable plate (22) is provided with a second mounting hole (222) with a diameter smaller than the first mounting hole (211). The probe body (3) includes a rotating part (31) that slides with the first mounting hole (211) and a probe (32) connected to the lower end of the rotating part (31) and sliding with the second mounting hole (222).

4. The quick-clamping structure for the oil and gas pipeline weld inspection probe according to claim 3, characterized in that: The locking component (4) includes a locking hole (41) provided on the rotating part (31) and a locking rod (42) provided on the inner wall of the fan-shaped cavity (11), and the locking rod (42) and the locking hole (41) have a fitting gap.

5. The quick-clamping structure for the oil and gas pipeline weld inspection probe according to claim 4, characterized in that: The first connector (1) is provided with a threaded hole that communicates with the fan-shaped cavity (11), and the clasp (42) is provided with an external thread that is threadedly connected to the threaded hole.

6. The quick-clamping structure for the oil and gas pipeline weld inspection probe according to claim 3, characterized in that: The top inner wall of the fan-shaped cavity (11) has a first rotating surface, and the upper end of the rotating part (31) has a second rotating surface that cooperates with the first rotating surface.

7. The quick-clamping structure for the oil and gas pipeline weld inspection probe according to claim 3, characterized in that: The first movable plate (21) has pressing plates (24) rotatably connected to both ends via connecting shafts.

8. The quick-clamping structure for the oil and gas pipeline weld inspection probe according to claim 7, characterized in that: The connecting shaft is a damped rotating shaft.

9. The quick-clamping structure for the oil and gas pipeline weld inspection probe according to claim 3, characterized in that: The elastic element (23) is a spring.

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