Self-fixing dark bag device for ray flaw detector

Abstract

The utility model discloses a kind of ray flaw detector self-fixing dark bag devices, including flexible dark bag matrix and flexible frame;The surface of flexible dark bag matrix is provided with the bendable grid structure of auxiliary adaptation different curvature pipe fittings, the bottom of flexible dark bag matrix is provided with the matrix clamping groove of cooperation flexible frame sealing clamping;The outer surface of flexible frame is provided with assembly groove, and the inside of assembly groove is provided with the clamping positioning mechanism of auxiliary flexible dark bag matrix position fixation;The surface of bendable grid structure is provided with one-way sealing air nozzle of control flexible dark bag matrix negative pressure fit;The bottom of flexible frame is provided with sealed antiskid silica gel for improving the adsorption stability of flexible dark bag matrix;The utility model can further improve the use film dark bag, when detecting pipeline curved surface or inclined surface, the stability of dark bag, and improve the tightness of dark bag and pipeline curved surface fit, reduce the air gap generated, ensure the precision of detection and the quality of imaging.

Description

Technical Field

[0001] This utility model relates to the field of X-ray inspection technology, specifically to a self-fixing dark bag device for X-ray flaw detectors. Background Technology

[0002] In X-ray flaw detector inspection, traditional film dark bags are typically used to hold X-ray film or imaging plates to record images of the internal structure of the inspected object. However, when using film dark bags to inspect curved or inclined surfaces of pipes, the dark bags are prone to displacement due to gravity or improper operation. Furthermore, they are difficult to fit tightly against the curved surface of the pipe, easily creating air gaps, leading to blurred images or repeated exposures, affecting inspection accuracy and reducing image quality. Although temporary fixation with tape or magnets is possible, tape fixation easily leaves stains, and its adhesion decreases in high-temperature or humid environments, affecting adhesion. Magnetic fixation is limited to ferromagnetic materials, limiting its applicability. Therefore, we need to propose a self-fixing dark bag device for X-ray flaw detectors. Utility Model Content

[0003] The purpose of this invention is to provide a self-fixing dark bag device for a radiographic flaw detector, which can further improve the stability of the dark bag when using film dark bags to inspect curved or inclined surfaces of pipes, improve the tightness of the dark bag's fit with the curved surface of the pipe, reduce air gaps, and ensure the accuracy of the inspection and the quality of the image, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides: a self-fixing dark bag device for a radiographic flaw detector, comprising a flexible dark bag substrate and a flexible frame; the surface of the flexible dark bag substrate is provided with a bendable mesh structure to assist in adapting to pipe fittings with different curvatures, and the bottom of the flexible dark bag substrate is provided with a substrate slot for sealing and clamping with the flexible frame; the outer surface of the flexible frame is provided with an assembly groove, and the interior of the assembly groove is provided with a clamping and positioning mechanism to assist in fixing the position of the flexible dark bag substrate; the surface of the bendable mesh structure is equipped with a one-way sealing air nozzle to control the negative pressure adhesion of the flexible dark bag substrate; the four corners of the flexible frame are provided with elastic straps to assist in fixing the flexible dark bag substrate; and the bottom of the flexible frame is connected with a sealing and anti-slip silicone to improve the adsorption stability of the flexible dark bag substrate.

[0005] Preferably, the mounting and positioning mechanism includes: a permanent magnet sheet detachably installed inside the assembly slot, and limiting strips distributed on the inner wall of the assembly slot; wherein, the surface of the permanent magnet sheet is provided with an assembly slot, and the inner wall of the assembly slot is movably inserted into the surface of the limiting strip.

[0006] Preferably, a fixing ring is installed at each of the four corners of the surface of the flexible frame, and a connecting buckle is movably installed on the surface of the fixing ring, and the elastic strap is fixedly connected to the surface of the connecting buckle.

[0007] Preferably, the bottom of the flexible dark bag substrate is provided with an adhesive surface, which is configured to cooperate with the flexible frame through a substrate slot.

[0008] Preferably, a protective valve cap is movably installed at the end of the one-way sealing nozzle, and the one-way sealing nozzle is connected to a miniature vacuum pump through a negative pressure pipe.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This invention utilizes a combination of a flexible dark bag substrate, a one-way sealing nozzle, a flexible frame, sealing and anti-slip silicone, and a clamping and positioning mechanism. The flexible dark bag substrate is placed over the detection position and pressed to adhere to the pipe surface. The permanent magnet, along with the limiting strip, allows for quick mounting and dismounting of the permanent magnet on the flexible frame. Simultaneously, the permanent magnet magnetically attracts metal pipe surfaces, enhancing positioning stability. For non-metallic pipes, a retaining ring and connecting buckle elastic strap provide fixation, adapting to different pipe diameters and further reinforcing the dark bag's adhesion. An external vacuum pump connected to the one-way sealing nozzle evacuates the space between the adhesive surfaces, and the sealing and anti-slip silicone at the bottom of the flexible frame ensures stable adhesion between the flexible dark bag substrate and the workpiece, improving airtightness, preventing negative pressure leakage, and adapting to rough surfaces. This further enhances the adhesion of the flexible dark bag substrate to the pipe, ensuring detection accuracy and imaging quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the flexible dark bag substrate structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the flexible frame structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the sealing and anti-slip silicone structure of this utility model.

[0015] In the diagram: 1. Flexible dark bag substrate; 2. Substrate slot; 3. Flexible mesh structure; 4. Adhesive surface; 5. One-way sealing nozzle; 6. Protective valve cap; 7. Flexible frame; 8. Assembly slot; 9. Limiting strip; 10. Permanent magnet; 11. Assembly slot; 12. Fixing ring; 13. Connecting buckle; 14. Elastic strap; 15. Sealing and anti-slip silicone. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 This utility model provides: a self-fixing dark bag device for a radiographic flaw detector, including a flexible dark bag base 1 and a flexible frame 7; the surface of the flexible dark bag base 1 is provided with a bendable mesh structure 3 to assist in adapting to pipe fittings with different curvatures, and the bottom of the flexible dark bag base 1 is provided with a base slot 2 for sealing and clamping with the flexible frame 7; the outer surface of the flexible frame 7 is provided with an assembly groove 8, and the interior of the assembly groove 8 is provided with a clamping and positioning mechanism to assist in fixing the position of the flexible dark bag base 1; the surface of the bendable mesh structure 3 is equipped with a one-way sealing nozzle 5 to control the negative pressure adhesion of the flexible dark bag base 1; the four corners of the flexible frame 7 are provided with elastic straps 14 to assist in fixing the flexible dark bag base 1; the bottom of the flexible frame 7 is connected with a sealing and anti-slip silicone 15 to improve the adsorption stability of the flexible dark bag base 1.

[0018] It is worth noting that the combination of the flexible dark bag substrate 1, the one-way sealing nozzle 5, the flexible frame 7, the sealing and anti-slip silicone 15, and the clamping and positioning mechanism can further improve the stability of the dark bag when using film dark bags to inspect curved or inclined surfaces of pipes, and improve the tightness of the fit between the dark bag and the curved surface of the pipe, reduce the generation of air gaps, and ensure the accuracy of detection and the quality of imaging.

[0019] Specifically, the mounting and positioning mechanism includes: a permanent magnet 10 that can be detachably installed inside the assembly slot 8, and limiting strips 9 distributed on the inner wall of the assembly slot 8; wherein, the surface of the permanent magnet 10 is provided with an assembly slot 11, and the inner wall of the assembly slot 11 is movably inserted into the surface of the limiting strips 9.

[0020] The assembly slot 8 is designed for the detachable installation of the permanent magnet sheet 10. This allows the permanent magnet sheet 10 to automatically fix the dark bag when inspecting metal workpieces with a radiographic flaw detector. At the same time, the permanent magnet sheet 10 can be easily installed on the limit strip 9 through the assembly slot 11, or the permanent magnet sheet 10 can be disassembled and its position adjusted.

[0021] Fixed rings 12 are installed at the four corners of the surface of the flexible frame 7. Connecting buckles 13 are movably installed on the surface of the fixed rings 12, and elastic straps 14 are fixedly connected to the surface of the connecting buckles 13.

[0022] In addition, the fixing ring 12 is a structure that connects the elastic strap 14 in conjunction with the connecting buckle 13. This makes it convenient for the flexible dark bag substrate 1 to be fixed to complex structures with the help of the elastic strap 14. When inspecting simple workpieces, the elastic strap 14 can be removed from the fixing ring 12 through the connecting buckle 13.

[0023] The bottom of the flexible dark bag substrate 1 is provided with an adhesion and adsorption surface 4, which is fitted with the flexible frame 7 through the substrate slot 2. A protective valve cap 6 is movably installed at the end of the one-way sealing nozzle 5, and the one-way sealing nozzle 5 is connected to a miniature vacuum pump through a negative pressure pipe.

[0024] Furthermore, the protective valve cap 6 is a structure that protects the one-way sealing nozzle 5. The adhesive adsorption surface 4 is the adhesion effect of the flexible dark bag substrate 1 adsorbed onto the workpiece when vacuum is drawn by an external vacuum pump connected to the one-way sealing nozzle 5, thereby fixing the position of the dark bag, making the flexible dark bag substrate tightly adhere to the workpiece, and reducing scattering interference.

[0025] In use, the flexible dark bag substrate 1 is placed over the detection position and pressed to adhere to the surface of the pipe fitting. The permanent magnet 10, in conjunction with the limiting clip 9, allows for quick mounting and dismounting on the flexible frame 7. Simultaneously, the permanent magnet 10 magnetically attracts the surface of the metal pipe fitting, enhancing positioning stability. For non-metallic pipe fittings, the elastic strap 14, connected by the fixing ring 12 and connecting buckle 13, is used for fixation, adapting to different pipe diameters and further reinforcing the dark bag's fit to prevent displacement. A one-way sealing nozzle 5 connected to an external vacuum pump evacuates the space of the adhesion and adsorption surface 4. Combined with the sealing and anti-slip silicone 15 at the bottom of the flexible frame 7, this ensures a stable adhesion of the flexible dark bag substrate 1's adhesion and adsorption surface 4 to the workpiece, improving airtightness, preventing negative pressure leakage, and adapting to rough surfaces. This further enhances the adhesion of the flexible dark bag substrate 1's adhesion and adsorption surface 4 to the pipe fitting, ensuring detection accuracy and imaging quality.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-fixing dark bag device for a radiographic flaw detector, characterized in that, include: Flexible dark bag substrate (1) and flexible frame (7); The surface of the flexible dark bag substrate (1) is provided with a bendable mesh structure (3) to help adapt to pipe fittings with different curvatures, and the bottom of the flexible dark bag substrate (1) is provided with a substrate slot (2) for sealing and fastening with a flexible frame (7). The outer surface of the flexible frame (7) is provided with an assembly groove (8), and the interior of the assembly groove (8) is provided with a clamping and positioning mechanism for fixing the position of the flexible dark bag substrate (1). The surface of the flexible mesh structure (3) is fitted with a one-way sealing nozzle (5) that controls the negative pressure bonding of the flexible dark bag substrate (1). The four corners of the flexible frame (7) are provided with elastic straps (14) to help fix the flexible dark bag base (1). The bottom of the flexible frame (7) is connected to a sealing and anti-slip silicone (15) that improves the adsorption stability of the flexible dark bag substrate (1).

2. The self-fixing dark bag device for a radiographic flaw detector according to claim 1, characterized in that: The card-mounting positioning mechanism includes: The permanent magnet sheet (10) can be detachably installed inside the assembly slot (8), and Limiting strips (9) are distributed on the inner wall of the assembly groove (8); The permanent magnet sheet (10) has an assembly slot (11) on its surface, and the inner wall of the assembly slot (11) is movably connected to the surface of the limiting strip (9).

3. The self-fixing dark bag device for a radiographic flaw detector according to claim 1, characterized in that: Fixed rings (12) are installed at the four corners of the surface of the flexible frame (7). Connecting buckles (13) are movably installed on the surface of the fixed rings (12). The elastic straps (14) are fixedly connected to the surface of the connecting buckles (13).

4. The self-fixing dark bag device for a radiographic flaw detector according to claim 1, characterized in that: The bottom of the flexible dark bag substrate (1) is provided with an adhesive adsorption surface (4), which is configured to cooperate with the flexible frame (7) through the substrate slot (2).

5. The self-fixing dark bag device for a radiographic flaw detector according to claim 1, characterized in that: The end of the one-way sealing nozzle (5) is movably fitted with a protective valve cap (6), and the one-way sealing nozzle (5) is connected to a miniature vacuum pump through a negative pressure pipe.

Images