Tool for fixing hidden bag in nuclear power stainless steel welding seam radiographic inspection
By designing a tooling that includes components such as pressure plates, hinges, slides, bolts, etc., and using magnets and vacuum suction cups to fix the hidden bags, the problem of imperfection of the hidden bags in the ray detection of stainless steel welds in nuclear power is solved, and the effect of stable fixation and cost reduction is achieved.
Patent Information
- Application Number
- CN202421501247.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In the existing nuclear power stainless steel weld ray detection, the use of stainless steel special tape for fixed concealed bags is not firm, the cost is high, and the effect is not good when humidity changes, making it difficult to clean.
The tooling consists of a press plate, hinge, slide, bolts, nuts, connecting arms, connecting frames and vacuum suction cups. It is fixed to the stainless steel cover on both sides of the weld by magnet adsorption of the concealed bag and suction cup. After adjusting the angle, the fastening bolts are secured to achieve stable fixation.
The stable fixation of the hidden bag is achieved, the cost is reduced, the operation efficiency is improved, the waste of tape and the difficulty of cleaning are avoided, and the radiation detection effect is ensured.
Smart Images
Figure CN223091862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nuclear power non-destructive testing, in particular to a tool for fixing a dark bag in the radiographic inspection of nuclear power stainless steel welds. Background Art
[0002] When performing radiographic inspection on stainless steel welds in the nuclear island civil engineering project, special stainless steel adhesive tape is mostly used to fix the dark bag. When fixing the dark bag, the usage amount is large, there is a lot of waste and it is not firm. When the humidity is high or during the "southern moisture" period, the adhesiveness of the adhesive tape is poor, and more adhesive tape is required for fixing at this time, and at the same time, waste films are likely to occur; in high-temperature weather, the adhesive tape is easily stuck to the stainless steel cladding and is difficult to clean. Therefore, a tool for fixing the dark bag with convenient operation and simple structure is needed to be applied to the fixing of the dark bag for stainless steel welds to ensure the effective fixing of the dark bag, reduce costs and improve work efficiency. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a tool for fixing a dark bag in the radiographic inspection of nuclear power stainless steel welds to solve the technical problems existing in the above background art. Compared with the previous method of fixing the dark bag, the dark bag of this tool is fixed stably and reliably, and has convenient operation, simple structure, high work efficiency and good economic benefits.
[0004] To achieve the above purpose, the technical solution of the utility model is as follows:
[0005] A tool for fixing a dark bag in the radiographic inspection of nuclear power stainless steel welds includes: a pressing plate, hinges, sliding rails, bolts, nuts, connecting arms, connecting frames and suction cups. There are two hinges. The left and right sides of the pressing plate are symmetrically hinged with two sliding rails through the two hinges. The inner side of the sliding rail is slidably connected with a bolt along its length direction. A nut is threadedly connected to the bolt at the upper part of the sliding rail. One end of the connecting arm is also penetrated and fixedly connected by the bolt. The outer wall of the other end of the connecting arm is connected with a suction cup through a connecting frame. The two suction cups are adsorbed and fixed on both sides of the stainless steel cladding located at the weld. The pressing plate faces the weld. Two clamping blocks are symmetrically and fixedly connected to the left and right ends of the inner side of the pressing plate. A dark bag is adsorbed and fixed on the side of the two clamping blocks facing the weld.
[0006] Further, the pressing plate is made of stainless steel, the clamping blocks are made of carbon steel, the two clamping blocks are respectively welded and fixed on the pressing plate, magnets are arranged on both sides of the dark bag, and the dark bag is respectively adsorbed and fixed on the two clamping blocks through the magnets.
[0007] Further, one ends of the two hinges are respectively fixedly connected to the left and right sides of the outer end of the pressing plate, and the outer ends of the other ends of the two hinges are respectively fixedly connected to one ends of the sliding rails.
[0008] Further, the slideway is a strip-shaped plate body, and a strip-shaped chute is formed in the inner side thereof, and the screw part of the bolt penetrates through and is slidably connected to the strip-shaped chute from bottom to top.
[0009] Further, the connecting arm is of a rectangular steel pipe structure. A vertically penetrating circular hole is formed at one end of the connecting arm. The head of the bolt presses and contacts the bottom end of the connecting arm. Two nuts are also threadedly connected to the screw part of the bolt at the top end of the connecting arm. The top end of the upper nut among the two nuts closely adheres to the bottom end of the slideway, and the lower nut among the two nuts presses and contacts the top end of the connecting arm.
[0010] Further, one end of the connecting frame is fixedly connected to the outer side wall of the connecting arm, the top end of the suction cup is fixedly connected to the connecting frame, and the suction cup is vertically arranged with respect to the connecting arm.
[0011] Further, the suction cup is a vacuum suction cup.
[0012] Further, the pressing plate is rectangular and a through hole is formed in the middle thereof. The clamping block is L-shaped. A lead plate is clamped and placed between the two clamping blocks, and the lead plate is directly opposite to and completely covers the through hole.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. In the present utility model, the lead plate is loaded into the card slot formed by the two clamping blocks and the pressing plate, adsorbed on the two clamping blocks by the dark bag with a magnet, fixed on the stainless steel cladding on both sides of the weld by the two suction cups, and the angle is adjusted through the slideway and the hinge. After adjusting to the standard angle, the bolt is tightened by the nut to achieve the purpose of fixing the dark bag; the operation is convenient, the structure is simple, and the dark bag can be stably fixed;
[0015] 2. Compared with fixing the dark bag with tape in the past, the cost is low and the economic benefit is obvious by using the tooling for fixing the dark bag provided by the present utility model, and the effect of ray detection can be ensured. Description of the Drawings
[0016] Figure 1 is a schematic structural diagram of the present utility model;
[0017] Figure 2 is a schematic connection diagram of the pressing plate and the clamping block in the present utility model;
[0018] Figure 3 is a schematic connection diagram of the hinge and the slideway in the present utility model.
[0019] The reference numerals in the drawings are: 1 - pressing plate, 2 - hinge, 3 - slideway, 4 - bolt, 5 - nut, 6 - connecting arm, 7 - connecting frame, 8 - suction cup, 9 - clamping block. Detailed Embodiment
[0020] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0021] See Figures 1 to 3 As shown, a tooling for a fixed dark bag in radiographic inspection of a nuclear power stainless steel weld includes: a pressing plate 1, a hinge 2, a slideway 3, a bolt 4, a nut 5, a connecting arm 6, a connecting frame 7 and a suction cup 8. There are two hinges 2. The left and right sides of the pressing plate 1 are symmetrically hinged with two slideways 3 through the two hinges 2. A bolt 4 is slidably connected along the length direction inside the slideway 3. A nut 5 is threadedly connected to the bolt 4 at the upper part of the slideway 3. One end of a connecting arm 6 is also penetrated and fixedly connected by the bolt 4. The outer wall of the other end of the connecting arm 6 is connected with a suction cup 8 through a connecting frame 7. The two suction cups 8 are adsorbed and fixed on both sides of the stainless steel cladding where the weld is located. The pressing plate 1 faces the weld. Two clamping blocks 9 are symmetrically and fixedly connected to the left and right ends inside the pressing plate 1. A dark bag is adsorbed and fixed on the side of the two clamping blocks 9 facing the weld.
[0022] In this embodiment, the pressing plate 1 is made of stainless steel, the clamping blocks 9 are made of carbon steel, the two clamping blocks 9 are respectively welded and fixed on the pressing plate 1, magnets are arranged on both sides of the dark bag, and the dark bag is adsorbed and fixed on the two clamping blocks 9 through the magnets respectively.
[0023] In this embodiment, one end of each of the two hinges 2 is fixedly connected to the left and right sides of the outer end of the pressing plate 1, and one end of the slideway 3 is fixedly connected to the outer side of the other end of each of the two hinges 2. The slideway 3 is placed horizontally and welded and fixed at a 90° angle with the hinge.
[0024] In this embodiment, the slideway 3 is a strip-shaped plate body, and a strip-shaped chute is opened inside it. The screw part of the bolt 4 penetrates and is slidably connected to the strip-shaped chute from bottom to top.
[0025] In this embodiment, the connecting arm 6 is of a rectangular steel pipe structure. A vertical circular hole penetrating up and down is opened at one end of the connecting arm 6. The head of the bolt 4 presses and contacts the bottom end of the connecting arm 6. Two nuts 5 are also threadedly connected to the screw part of the bolt 4 at the top end of the connecting arm 6. The top end of the upper nut 5 among the two nuts 5 is closely attached to the bottom end of the slideway 3, and the lower nut 5 among the two nuts 5 presses and contacts the top end of the connecting arm 6.
[0026] In this embodiment, one end of the connecting frame 7 is fixedly connected to the outer side wall of the connecting arm 6. The top end of the suction cup 8 is fixedly connected to the connecting frame 7. The suction cup 8 is perpendicular to the connecting arm 6. The suction cup 8 is a vacuum suction cup, and the entire tooling can be stably fixed on the stainless steel cladding on both sides of the weld through the suction cup 8.
[0027] In this embodiment, the pressing plate 1 is rectangular and a through hole is opened in the middle of it. The clamping blocks 9 are L-shaped. A lead plate is clamped and placed between the two clamping blocks 9. The lead plate faces and completely covers the through hole. The lead plate can further block the rays and avoid harm to the staff.
[0028] When performing radiographic testing on the stainless steel fillet welds of nuclear power projects, the lead plate is inserted into the card slot formed by two clamping blocks 9 and a pressing plate 1, and adsorbed on one side of the two clamping blocks 9 facing the weld by a light-tight bag with a magnet. It is fixed on the stainless steel claddings on both sides of the weld through two suction cups 8. The angle is adjusted through a slideway 3 and a hinge 2. After adjusting to the standard angle, the bolt 4 is tightened through a nut 5 to achieve the purpose of fixing the light-tight bag. This tooling is convenient to operate, simple in structure, and can stably fix the light-tight bag. At the same time, compared with the previous method of fixing the light-tight bag with tape, it has low cost and obvious economic benefits, and can achieve the effect of radiographic testing.
[0029] It should be noted that the stainless steel claddings on both sides of the weld are often arranged at an angle of 180° or 90°. Through the auxiliary fixation of this tooling, the light-tight bag is arranged at an angle of 0° or 45° relative to the stainless steel claddings on both sides of the weld. At the same time, this tooling can also be applied to the fixation of the light-tight bag when the stainless steel claddings on both sides of the weld are at any angle between 90° and 180°.
[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0031] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any person skilled in the relevant art, without departing from the scope of the technical solution of the present invention, based on the technical essence of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments shall still fall within the protection scope of the technical solution of the present invention.
Claims
1. An industrial tool for a fixed dark bag in the radiographic inspection of a nuclear power stainless steel weld, characterized in that, Including: A pressing plate (1), hinges (2), slideways (3), bolts (4), nuts (5), connecting arms (6), connecting brackets (7), suction cups (8) and clamping blocks (9). There are two hinges (2). The left and right sides of the pressing plate (1) are symmetrically hinged with two slideways (3) through the two hinges (2). A bolt (4) is slidably connected along the length direction inside the slideway (3). A nut (5) is threadedly connected to the upper part of the bolt (4) located in the slideway (3). One end of the connecting arm (6) is also penetrated and fixedly connected by the bolt (4). The outer wall of the other end of the connecting arm (6) is connected with a suction cup (8) through a connecting bracket (7). The two suction cups (8) are adsorbed and fixed on both sides of the stainless steel cladding located at the weld. The pressing plate (1) faces the weld. Two clamping blocks (9) are symmetrically and fixedly connected to the left and right ends inside the pressing plate (1). A dark bag is adsorbed and fixed on the side of the two clamping blocks (9) facing the weld.
2. The tooling for the fixed dark bag used in the ray detection of nuclear power stainless steel welds according to claim 1, characterized in that: The pressing plate (1) is made of stainless steel, and the clamping blocks (9) are made of carbon steel. The two clamping blocks (9) are respectively welded and fixed on the pressing plate (1). Magnets are arranged on both sides of the dark bag, and the dark bag is adsorbed and fixed on the two clamping blocks (9) through the magnets respectively.
3. The tooling for a fixed dark bag used in the ray detection of a nuclear power stainless steel weld seam according to claim 1, characterized in that: One end of each of the two hinges (2) is respectively fixedly connected to the left and right sides of the outer end of the pressing plate (1), and the outer ends of the other ends of the two hinges (2) are both fixedly connected to one end of the slideway (3).
4. The tooling for a fixed dark bag used in radiographic inspection of nuclear power stainless steel welds according to claim 1, characterized in that: The slideway (3) is a strip-shaped plate body, and a strip-shaped chute is opened inside it. The screw part of the bolt (4) penetrates and is slidably connected to the strip-shaped chute from bottom to top.
5. The tooling for a fixed dark bag used in the ray detection of a nuclear power stainless steel weld seam according to claim 1, characterized in that: The connecting arm (6) is of a rectangular steel pipe structure. A vertical circular hole penetrating up and down is opened at one end of the connecting arm (6). The head of the bolt (4) presses and contacts the bottom end of the connecting arm (6). Two nuts (5) are also threadedly connected to the top end of the screw part of the bolt (4) in the connecting arm (6). The top end of the upper nut (5) among the two nuts (5) closely adheres to the bottom end of the slideway (3), and the lower nut (5) among the two nuts (5) presses and contacts the top end of the connecting arm (6).
6. The tooling for a fixed dark bag used in the radiographic inspection of a nuclear power stainless steel weld seam according to claim 1, characterized in that: One end of the connecting bracket (7) is fixedly connected to the outer side wall of the connecting arm (6), and the top end of the suction cup (8) is fixedly connected to the connecting bracket (7). The suction cup (8) is vertically arranged with the connecting arm (6).
7. The tooling for the fixed dark bag used in the ray detection of the nuclear power stainless steel weld seam according to claim 1, wherein: The suction cup (8) is a vacuum suction cup.
8. The tooling for a fixed dark bag used in the radiographic inspection of nuclear power stainless steel welds according to claim 1, characterized in that: The pressing plate (1) is rectangular and has a through hole in the middle. The clamping blocks (9) are L-shaped. A lead plate is clamped and placed between the two clamping blocks (9), and the lead plate faces and completely covers the through hole.