Defect quantitative nondestructive testing probe for oil casing

Abstract

The utility model belongs to the technical field of ultrasonic flaw detectors, and particularly relates to a flaw quantitative nondestructive testing probe for an oil casing, which comprises a flaw detector body and a shell, a probe body is placed in the shell and is electrically connected with the flaw detector body, two connecting blocks are fixed on the surface of the probe body, and the connecting blocks are connected with the shell. And clamping grooves are formed in the two side walls of the connecting block correspondingly, and two T-shaped rods slidably penetrate through the bottom of the shell. According to the ultrasonic flaw detector, by arranging the shell, the probe body, the connecting block, the clamping groove, the T-shaped rod, the push block, the first spring, the moving block and the clamping rod, in the using process of the ultrasonic flaw detector, the probe body of the ultrasonic flaw detector is fixed in the shell in a spring clamping mode, so that a worker can replace the ultrasonic flaw detector conveniently in the later period, the convenience of maintenance of the ultrasonic flaw detector is improved, and the working efficiency is improved. Meanwhile, by means of the arranged protection assembly, the probe body can be protected, and the situation that the detection head of the probe body is scratched is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic flaw detectors, in particular to a defect quantitative non-destructive testing probe for oil casing pipes. Background Technique

[0002] Electromagnetic ultrasonic flaw detection is a new non-destructive testing technology. Due to the characteristics of electromagnetic ultrasonic flaw detection such as no need for a coupling medium and being convenient for exciting various wave-mode ultrasounds, it has broad application prospects in the fields of metallurgy, railway, petroleum, electric power, chemical industry, nuclear energy and even military industry, and has attracted more and more attention. It is especially suitable for flaw detection in places where it is not suitable to use a coupling agent. For example, after the production of oil casing pipes, they need to be detected, and a ultrasonic flaw detector is required correspondingly during the detection. However, during the use of the current ultrasonic flaw detector, its defect quantitative non-destructive testing probe is not convenient for installation and replacement, thus causing many inconveniences during use. Therefore, we propose a defect quantitative non-destructive testing probe for oil casing pipes to solve the above problems. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the prior art, the utility model provides a defect quantitative non-destructive testing probe for oil casing pipes, which solves the problems put forward in the above background technique.

[0005] (2) Technical Solutions

[0006] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0007] A defect quantitative non-destructive testing probe for oil casing pipes, including a flaw detector body and a housing. A probe body is placed inside the housing. The probe body is electrically connected to the flaw detector body. Two connecting blocks are fixed on the surface of the probe body. Slots are opened on both side walls of the connecting blocks. Two T-shaped rods slidably penetrate through the bottom of the housing. Push blocks are fixed at the top ends of the T-shaped rods. Two first springs are fixed on both inner walls of the housing. The other ends of the first springs are fixed with moving blocks adapted to the push blocks. The moving blocks are respectively in contact with the corresponding push blocks. A clamping rod adapted to the slot is fixed on one side wall of each moving block. The clamping rods are respectively clamped inside the corresponding slots. A protection component is arranged on the top of the housing.

[0008] Further, the protection component includes an annular plate fixed on the top of the housing. A circular plate is threadedly connected to the surface of the annular plate. A transparent plate is fixed inside the through hole opened on the top of the circular plate.

[0009] Furthermore, guiding grooves are formed in the inner walls on both sides of the housing, and guiding blocks adapted to the guiding grooves are fixed to one side wall of each moving block.

[0010] Furthermore, anti-slip ridges are equidistantly fixed to both side walls of the housing.

[0011] Furthermore, second springs are fixed to the T-shaped rods, and the tops of the second springs are fixedly connected to the bottom of the housing.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the present utility model provides a defect quantitative non-destructive testing probe for oil casing pipes, having the following beneficial effects:

[0014] In the present utility model, by providing a housing, a probe body, a connecting block, a card slot, a T-shaped rod, a pushing block, a first spring, a moving block and a clamping rod, during the use of this ultrasonic flaw detector, the probe body is fixed inside the housing in a spring clamping manner, thus facilitating the replacement by the later staff and improving the convenience of its maintenance. At the same time, by using the provided protection assembly, the probe body can be protected to avoid scratches and other situations on its detection head part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the annular plate structure of the present utility model;

[0017] Figure 3 is a schematic diagram of the connecting block structure of the present utility model;

[0018] Figure 4 is a schematic diagram of the internal structure of the housing of the present utility model.

[0019] In the figure: 1, flaw detector body; 2, housing; 3, probe body; 4, connecting block; 5, card slot; 6, T-shaped rod; 7, pushing block; 8, first spring; 9, moving block; 10, clamping rod; 11, protection assembly; 1101, annular plate; 1102, circular plate; 1103, transparent plate; 12, guiding groove; 13, guiding block; 14, anti-slip ridge; 15, second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment

[0022] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, a defect quantitative non-destructive testing probe for oil casing proposed in an embodiment of the present utility model includes a flaw detector body 1 and a housing 2. Anti-slip ridges 14 are equally spaced and fixed on both side walls of the housing 2, which can increase the friction between the hand and the surface of the housing 2, so as to play an anti-slip effect when the staff holds the housing 2 for the detection process. A probe body 3 is placed inside the housing 2. The probe body 3 is electrically connected to the flaw detector body 1. Two connecting blocks 4 are fixed on the surface of the probe body 3. Slots 5 are opened on both side walls of the connecting blocks 4. Two T-shaped rods 6 penetrate through the bottom of the housing 2 in a sliding manner. Second springs 15 are fixed on the T-shaped rods 6. The top ends of the second springs 15 are fixedly connected to the bottom of the housing 2, which facilitates the automatic rebound of the T-shaped rods 6 after the pressing is released. Push blocks 7 are fixed on the top ends of the T-shaped rods 6. Two first springs 8 are fixed on both inner walls of the housing 2. The other ends of the first springs 8 are fixed with moving blocks 9 adapted to the push blocks 7. The moving blocks 9 are respectively in contact with the corresponding push blocks 7. Clamping rods 10 adapted to the slots 5 are fixed on one side wall of each moving block 9. The clamping rods 10 are respectively clamped inside the corresponding slots 5. A protection assembly 11 is arranged on the top of the housing 2. When the probe body 3 needs to be replaced, the two T-shaped rods 6 can be simultaneously squeezed to move upward. After the T-shaped rods 6 move upward, they will drive the push blocks 7 to move upward. After the push blocks 7 move upward, the moving blocks 9 can be simultaneously squeezed to move to both sides. At this time, the first springs 8 will be in a compressed state, and the moving blocks 9 will drive the clamping rods 10 to move after moving. At this time, the moving clamping rods 10 will respectively slide out from the inside of the slots 5. Thus, after the restriction on the connecting blocks 4 is released, the probe body 3 can be removed from the inside of the housing 2 for replacement. During installation, repeat the above operations. When the probe body 3 is placed in the housing 2 in a fitting manner, release the T-shaped rods 6. At this time, under the restoring force of the first springs 8, the clamping rods 10 can be driven to be re-clamped inside the slots 5, and at this time, the probe body 3 can be fixed.

[0023] As Figure 1 and Figure 2As shown, in some embodiments, the protection component 11 includes an annular plate 1101 fixed to the top of the housing 2. A circular plate 1102 is threadedly connected to the surface of the annular plate 1101. A transparent plate 1103 is fixed inside the through hole opened at the top of the circular plate 1102. By means of the cooperation of the annular plate 1101 and the circular plate 1102, the detection part of the probe body 3 can be protected to avoid scratches and other situations, and the transparent plate 1103 is made of glass material.

[0024] As Figure 4 shown, in some embodiments, guide grooves 12 are formed on both inner walls of the housing 2. Guide blocks 13 adapted to the guide grooves 12 are fixed to one side wall of the moving block 9, which can limit the moving block 9 and make it more stable during movement.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A defect quantitative non-destructive testing probe for oil casing pipes, comprising a flaw detector body (1) and a housing (2), characterized in that: Inside the housing (2), a probe body (3) is placed. The probe body (3) is electrically connected to the flaw detector body (1). Two connecting blocks (4) are fixed on the surface of the probe body (3). Slots (5) are formed on both side walls of the connecting block (4). Two T-shaped rods (6) slidably penetrate through the bottom of the housing (2). Push blocks (7) are fixed at the top ends of the T-shaped rods (6). Two first springs (8) are fixed on both inner walls of the housing (2). The other ends of the first springs (8) are fixed with moving blocks (9) adapted to the push blocks (7). The moving blocks (9) are respectively in contact with the corresponding push blocks (7). A clamping rod (10) adapted to the slot (5) is fixed on one side wall of each moving block (9). The clamping rods (10) are respectively clamped inside the corresponding slots (5). A protection component (11) is arranged on the top of the housing (2).

2. The defect quantitative non-destructive testing probe for oil casing pipes according to claim 1, characterized in that: The protection component (11) includes an annular plate (1101) fixed on the top of the housing (2). A circular plate (1102) is threadedly connected to the surface of the annular plate (1101). A transparent plate (1103) is fixed inside the through hole formed on the top of the circular plate (1102).

3. A defect quantitative non-destructive testing probe for oil casing pipes according to claim 1, characterized in that: Guide grooves (12) are formed on both inner walls of the housing (2). Guide blocks (13) adapted to the guide grooves (12) are fixed on one side wall of each moving block (9).

4. A defect quantitative non-destructive testing probe for oil casing pipes according to claim 1, characterized in that: Anti-slip ridges (14) are equidistantly fixed on both side walls of the housing (2).

5. A defect quantitative non-destructive testing probe for oil casing pipes according to claim 1, characterized in that: Second springs (15) are fixed on the T-shaped rods (6). The top ends of the second springs (15) are fixedly connected to the bottom of the housing (2).

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