A fluorescent penetrant detection developer spraying device
By designing a multi-directional spraying component and a fluorescent penetrant detection developer spraying device with an expanded loading area, the problems of numerous spraying dead angles and limited loading area in traditional devices have been solved, improving spraying efficiency and imaging effect, and making it suitable for processing large batches of workpieces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XUNDA FLAW DETECTION TECH CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional fluorescent penetrant testing developer spraying devices suffer from problems such as numerous spraying dead zones, limited carrying area, and low spraying efficiency, especially when processing a large number of workpieces, resulting in poor imaging effects.
A fluorescent penetrant detection developer spraying device was designed, comprising a spraying box, a waste cleaning box, and a liquid storage box. It is equipped with multiple spraying components to spray the developer from multiple directions. Combined with a material support mesh and locking components, the material carrying area is expanded. The developer is cleaned and mixed by a liquid pump and a stirring component.
It reduces spraying dead zones, expands the carrying area, improves spraying efficiency and imaging effect, facilitates the processing of large batches of workpieces, and ensures uniform spraying and cleaning of the developer.
Smart Images

Figure CN224581425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flaw detection technology, specifically to a fluorescent penetrant detection developer spraying device. Background Technology
[0002] Penetrant testing involves coating a part surface with a dye-containing coloring or fluorescent penetrant. Under capillary action, the penetrant penetrates into surface defects due to the wetting and capillary action of the liquid. Excess penetrant is then removed, and a thin layer of developer is applied. The penetrant in the defects is reabsorbed onto the part surface under capillary action, forming a magnified image of the defect, which is observed under black or white light. Fluorescent methods use a penetrant containing fluorescent substances; after spraying the developer, defects are observed under black light.
[0003] Applying developer to workpieces is usually done manually with a handheld spray gun or by placing the workpieces into a corresponding spraying device. Manual spraying is slow and labor-intensive. Traditional spraying devices have a single spraying direction and many blind spots, which affects the development effect. In addition, the internal carrying plane usually only has a single grid plate, which has a limited carrying area. When there are many workpieces, it is not possible to expand them in a targeted manner, and they need to be processed in batches multiple times, which reduces the development efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a fluorescent penetrant detection developer spraying device, which has the advantages of small spraying dead angle, large carrying area and convenient cleaning.
[0005] The technical solution of this utility model is as follows:
[0006] A fluorescent penetrant detection developer spraying device includes a spraying box, a waste removal box, and a storage tank. The top opening of the spraying box is hinged with a cover. A grid plate is installed inside the spraying box. Spraying components A, B, and C are respectively installed at the bottom of the cover, on the four side walls inside the spraying box, and below the grid plate. The spraying direction of spraying components A, B, and C faces the grid plate. A waste removal box is located at the back of the spraying box, and a pump D is installed on the waste removal box to draw liquid from the bottom inside the spraying box. A storage tank is located at the back of the waste removal box. The storage tank is equipped with pumps A, B, and C, which draw liquid from spraying components A, B, and C respectively via infusion pipes. A filling port is located at the top of the storage tank, and a cover plate is hinged to the filling port. A stirring assembly for stirring the developer is also provided on the storage tank. A support mesh plate is placed on the grid plate, and each of the four corners of the support mesh plate has a vertically oriented guide rod. The grid plate has guide holes that slidably connect with the guide rods. A locking assembly is located at the bottom of each guide rod, and a corresponding locking hole is located at the bottom of each guide hole.
[0007] Preferably, the spraying assembly A includes a spraying pipe A and a dispensing pipe A. A plurality of spraying pipes A are evenly arranged along the left-right direction at the bottom of the cap and along the front-back direction. Nozzles are evenly arranged along the extension direction at the bottom of the spraying pipe A. A dispensing pipe A is provided at the top of the cap. The inlet of the spraying pipe A is connected to the same dispensing pipe A. The inlet of the dispensing pipe A is connected to the outlet of the pump A via a delivery pipe. The inlet of the pump A is connected to the bottom of the storage tank via a delivery pipe.
[0008] Preferably, the spraying assembly B includes a spraying pipe B and a dispensing pipe B. Several spraying pipes B are evenly arranged vertically along the contour of the side wall inside the spraying box. Nozzles are evenly arranged along the extension direction of the spraying pipes B facing the grid plate. A dispensing pipe B is provided outside the spraying box. The inlet of each spraying pipe B is connected to the same dispensing pipe B. The inlet of the dispensing pipe B is connected to the outlet of a pump B via a delivery pipe. The inlet of the pump B is connected to the bottom of the storage tank via a delivery pipe.
[0009] Preferably, the spraying assembly C includes a spraying pipe C and a dispensing pipe C. Inside the spraying box, several spraying pipes C are evenly arranged in the left-right direction below the grid plate and in the front-back direction. Nozzles are evenly arranged in the extension direction of the top of the spraying pipe C. The dispensing pipe C is provided outside the spraying box. The inlet of the spraying pipe C is connected to the same dispensing pipe C. The inlet of the dispensing pipe C is connected to the outlet of the pump C via a delivery pipe. The inlet of the pump C is connected to the bottom of the storage tank via a delivery pipe.
[0010] Preferably, the locking assembly includes a rotating block, a rotating rod, and a handle. The rotating block is rotatably connected to the bottom of the guide rod, the rotating rod is rotatably connected to the guide rod on its internal axis, and the handle is rotatably connected to the top of the guide rod. The upper and lower ends of the rotating rod are coaxially connected to the handle and the rotating block, respectively. The rotating block has a protrusion on its side for inserting into a locking hole. The locking hole is divided into a vertical part along the vertical direction and an arc-shaped part in the horizontal plane. The vertical part of the locking hole leads to the bottom of the guide hole, and the front end of the arc-shaped part of the locking hole is connected to the top end of the vertical part.
[0011] Preferably, the inlet of the pump D is provided with a delivery pipe leading to the bottom of the spray box, and the outlet of the pump D is provided with a delivery pipe leading to the waste removal box.
[0012] Preferably, the grating plate is provided with a groove corresponding to the shape of the support mesh plate, and when the support mesh plate is placed in the groove, the upper surface of the support mesh plate is flush with the upper surface of the grating plate.
[0013] Preferably, the stirring assembly includes a motor and a stirring frame. The stirring frame is rotatably connected inside the liquid storage tank. The upper end of the rotating shaft of the stirring frame is rotatably connected to the top of the liquid storage tank. The top of the liquid storage tank is equipped with a motor, and the drive rod of the motor is coaxially connected to the upper end of the rotating shaft of the stirring frame.
[0014] The beneficial technical effects of this utility model are as follows:
[0015] 1. By using spraying components A, B, and C in combination, the developer is sprayed onto the workpiece placed on the grating or support mesh from multiple directions, reducing spraying dead angles and allowing the penetrating liquid from defects in the workpiece to seep out, ensuring the development effect. The spraying box is kept closed during the application of the developer by the cap to prevent leakage. The operator pours the prepared developer into the storage tank through the filling port, then places the workpiece to be sprayed on the grating or support mesh, closes the cap, and starts the pumps A, B, and C. The developer in the storage tank flows through the delivery pipe to spraying components A, B, and C, forming a mist of developer that is sprayed onto the workpiece from multiple directions.
[0016] 2. By using the combination of support mesh, guide rod, guide hole and locking assembly, when there are a large number of workpieces to be processed, the staff can pull up the support mesh and fix it with the locking assembly to provide a new platform for the workpieces and make it convenient to place the workpieces.
[0017] 3. The waste developer at the bottom of the spray booth is pumped into the waste cleaning tank by the liquid pump D, which facilitates timely cleaning of the spray booth.
[0018] 4. The stirring component agitates the developer in the reservoir to help keep it mixed and facilitate spraying. Attached Figure Description
[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings.
[0020] Appendix Figure 1 This is the front view of the present invention.
[0021] Appendix Figure 2 This is a front-view cross-sectional view of the present invention.
[0022] Appendix Figure 3 This is a top view of the present invention.
[0023] Appendix Figure 4 This is a rear view of the present invention.
[0024] Appendix Figure 5 This is a top view of the interior of the spray booth.
[0025] Appendix Figure 6 This is a cross-sectional view of the support mesh after it has been raised and fixed.
[0026] Appendix Figure 7 This is a schematic diagram of the bottom of the guide hole.
[0027] Appendix Figure 8 This is a right-side cross-sectional view of the waste disposal tank and the liquid storage tank.
[0028] In the diagram: 1-Spraying box, 2-Waste removal box, 3-Liquid storage tank, 4-Cap, 5-Grate plate, 6-Spraying component A, 7-Spraying component B, 8-Spraying component C, 9-Liquid pump A, 10-Liquid pump B, 11-Liquid pump C, 12-Liquid pump D, 13-Liquid inlet, 14-Cover plate, 15-Stirring component, 16-Supporting mesh plate, 17-Guide rod, 18-Guide hole, 19-Locking component, 20-Locking hole, 21-Nozzle, 22-Spraying pipe A, 23-Distribution pipe A, 24-Spraying pipe B, 25-Distribution pipe B, 26-Spraying pipe C, 27-Distribution pipe C, 28-Rotating block, 29-Rotating rod, 30-Turner, 32-Groove, 33-Motor, 34-Stirring frame. Detailed Implementation
[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0030] Example:
[0031] like Figures 1 to 8As shown, this embodiment provides a fluorescent penetrant detection developer spraying device, including a spraying box 1, a waste removal box 2, and a storage tank 3. The top opening of the spraying box 1 is hinged with a cover 4. A grid plate 5 is provided inside the spraying box 1. Spraying components A6, B7, and C8 are respectively provided at the bottom of the cover 4, on the four side walls inside the spraying box 1, and below the grid plate 5. The spraying direction of spraying components A6, B7, and C8 faces the grid plate 5. The waste removal box 2 is located at the back of the spraying box 1, and a pump D12 is provided on the waste removal box 2 to draw liquid from the bottom inside the spraying box 1. The storage tank 3 is located at the back of the waste removal box 2. The liquid tank 3 is equipped with pumps A9, B10, and C11 that draw liquid from the spraying components A6, B7, and C8 respectively via infusion pipes. The top of the liquid tank 3 is equipped with a filling port 13, and a cover plate 14 is hinged to the filling port 13. The liquid tank 3 is equipped with a stirring component 15 for stirring the developer. A material support mesh plate 16 is placed on the grid plate 5. Each of the four corners of the material support mesh plate 16 is equipped with a guide rod 17 in the vertical direction. The grid plate 5 is equipped with a guide hole 18 that is slidably connected to the guide rod 17. A locking component 19 is provided at the bottom of the guide rod 17, and a locking hole 20 corresponding to the locking component is provided at the bottom of the guide hole 18.
[0032] By using the spraying components A6, B7, and C8 together, the developer is sprayed onto the workpiece placed on the grid plate 5 or the support mesh plate 16 from multiple directions, reducing spraying dead angles and allowing the penetrating liquid from defects in various parts of the workpiece to seep out, ensuring the development effect. The spraying box 1 is kept in a closed state when the developer is sprayed by the cover 4 to prevent the developer from leaking out. The operator pours the prepared developer into the storage tank through the liquid inlet 13, then places the workpiece to be sprayed with the developer on the grid plate 5 or the support mesh plate 16, then closes the cover 4 and starts the liquid pumps A9, B10, and C11. The developer in the storage tank is delivered to the spraying components A6, B7, and C8 through the liquid delivery pipe and forms a mist of developer that is sprayed onto the workpiece from multiple directions. Waste developer at the bottom of spray booth 1 is pumped into waste disposal tank 2 by pump D12, facilitating timely cleaning of spray booth 1. The combination of the support mesh 16, guide rod 17, guide hole 18, and locking assembly 19 allows workers to lift the support mesh 16 and secure it with the locking assembly 19 when there are many workpieces to be processed, providing a new platform for placing the workpieces. The stirring assembly 15 agitates the developer in storage tank 3, helping to maintain uniform mixing and facilitating spraying.
[0033] Furthermore, the spraying assembly A6 includes a spraying pipe A22 and a liquid distribution pipe A23. Several spraying pipes A22 are evenly arranged along the left-right direction at the bottom of the cover 4 and along the front-back direction. Nozzles 21 are evenly arranged along the extension direction at the bottom of the spraying pipes A22. A liquid distribution pipe A23 is provided at the top of the cover 4. The liquid inlet of the spraying pipe A22 is connected to the same liquid distribution pipe A23. The liquid inlet of the liquid distribution pipe A23 is connected to the liquid outlet of the pump A9 via a liquid delivery pipe. The liquid inlet of the pump A9 is connected to the bottom of the storage tank 3 via a liquid delivery pipe.
[0034] The developer is drawn out of the storage tank 3 by the pump A9. The developer flows into the distribution pipe A23 along the delivery pipe. Then the developer flows from the distribution pipe A23 into each spray pipe A22. Finally, the developer forms a spray at the nozzle 21 and is directed toward the workpiece.
[0035] Furthermore, the spraying assembly B7 includes a spraying pipe B24 and a liquid distribution pipe B25. Several spraying pipes B24 are evenly arranged in the vertical direction around the side wall contour inside the spraying box 1. Nozzles 21 are evenly arranged in the extension direction of the spraying pipes B24 facing the grid plate 5. A liquid distribution pipe B25 is provided outside the spraying box 1. The liquid inlet of the spraying pipe B24 is connected to the same liquid distribution pipe B25. The liquid inlet of the liquid distribution pipe B25 is connected to the liquid outlet of the liquid pump B10 through a liquid delivery pipe. The liquid inlet of the liquid pump B10 is connected to the bottom of the liquid storage tank 3 through a liquid delivery pipe.
[0036] The developer is drawn out of the storage tank 3 by the pump B10. The developer flows into the distribution pipe B25 along the delivery pipe. Then the developer flows from the distribution pipe B25 into each spray pipe B24. Finally, the developer forms a spray at the nozzle 21 and is directed toward the workpiece.
[0037] Furthermore, the spraying assembly C8 includes a spraying pipe C26 and a liquid distribution pipe C27. Inside the spraying box 1, several spraying pipes C26 are evenly arranged in the left-right direction below the grid plate 5 and in the front-back direction. Nozzles 21 are evenly arranged in the extension direction of the top of the spraying pipe C26. The liquid distribution pipe C27 is provided outside the spraying box 1. The liquid inlet of the spraying pipe C26 is connected to the same liquid distribution pipe C27. The liquid inlet of the liquid distribution pipe C27 is connected to the liquid outlet of the liquid pump C11 through the liquid delivery pipe. The liquid inlet of the liquid pump C11 is connected to the bottom of the liquid storage tank 3 through the liquid delivery pipe.
[0038] The developer is drawn out of the storage tank 3 by the pump C11. The developer flows into the distribution pipe C27 along the delivery pipe. Then the developer flows from the distribution pipe C27 into each spray pipe C26. Finally, the developer forms a spray at the nozzle 21 and is directed toward the workpiece.
[0039] Furthermore, the locking assembly 19 includes a rotating block 28, a rotating rod 29, and a handle 30. The rotating block 28 is rotatably connected to the bottom of the guide rod 17, the rotating rod 29 is rotatably connected to the inner axis of the guide rod 17, and the handle 30 is rotatably connected to the top of the guide rod 17. The upper and lower ends of the rotating rod 29 are coaxially connected to the handle 30 and the rotating block 28, respectively. The side of the rotating block 28 is provided with a protrusion for inserting into the locking hole 20. The locking hole 20 is divided into a vertical part along the vertical direction and an arc-shaped part in the horizontal plane. The vertical part of the locking hole 20 leads to the bottom of the guide hole 18, and the front end of the arc-shaped part of the locking hole 20 is connected to the top end of the vertical part.
[0040] When the support mesh plate 16 is placed on the grid plate 5, the rotating block 28 is stopped directly below the vertical part of the locking hole 20. When the worker lifts the support mesh plate 16 to the highest point, the protrusion rises to the top of the vertical part of the locking hole 20. Then, by rotating the handle 30, the rotating block 28 is indirectly rotated, so that the protrusion on the rotating block 28 moves from the vertical part of the locking hole 20 into the arc-shaped part, thereby fixing the height of the guide rod 17, so that the support mesh plate 16 is kept at a high position for placing workpieces.
[0041] Furthermore, the inlet of the liquid pump D12 is provided with a liquid delivery pipe leading to the bottom of the spraying box 1, and the outlet of the liquid pump D12 is provided with a liquid delivery pipe leading to the waste removal box 2.
[0042] Furthermore, the grid plate 5 is provided with a groove 32 corresponding to the shape of the support net plate 16. When the support net plate 16 is placed in the groove 32, the upper surface of the support net plate 16 is flush with the upper surface of the grid plate 5.
[0043] The groove 32 allows the support mesh plate 16 to be aligned with the grid plate 5 to form a flat loading surface when not raised, making it convenient to place workpieces.
[0044] Furthermore, the stirring assembly 15 includes a motor 33 and a stirring frame 34. The stirring frame 34 is rotatably connected inside the storage tank 3. The upper end of the rotating shaft of the stirring frame 34 is rotatably connected to the top of the storage tank 3. The top of the storage tank 3 is equipped with a motor 33, and the drive rod of the motor 33 is coaxially connected to the upper end of the rotating shaft of the stirring frame 34.
[0045] The motor 33 drives the stirring rack 34 to rotate, and the rotating stirring rack 34 agitates the developer in the storage tank 3.
[0046] Working principle and usage process of this utility model:
[0047] Workers pour the prepared developer into the storage tank through the filling port 13. Then, they place the workpieces to be sprayed with the developer on the grid plate 5 or the support mesh plate 16. After that, they close the cap 4 and start the pumps A9, B10 and C11. The developer in the storage tank is delivered to the spraying components A6, B7 and C8 through the infusion pipe. At the nozzle 21, it forms a mist of developer that is sprayed onto the workpiece from multiple directions. After the spraying is completed, the workers open the cap 4 and take out the workpieces. They start the pump D12 to pump the waste developer into the waste removal box 2. Then, they put a new batch of workpieces into the spraying box 1. Afterwards, they clean up the waste developer that has accumulated in the waste removal box 2.
[0048] When there are many workpieces, the worker lifts the support mesh plate 16 to the highest point by hand, and then turns the four handles 30 to make the protrusions on the rotating block 28 turn into the arc-shaped part of the locking hole 20 to fix the support mesh plate 16. Finally, the workpieces are placed on the grid plate 5 and the raised support mesh plate 16.
[0049] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.
Claims
1. A fluorescent penetrant inspection developer spray apparatus characterized by: The system includes a spraying box, a waste removal box, and a liquid storage tank. The spraying box has a hinged lid at its top opening. A grid plate is installed inside the spraying box. Spraying components A, B, and C are respectively installed at the bottom of the lid, on the four side walls inside the spraying box, and below the grid plate. The spraying direction of spraying components A, B, and C faces the grid plate. A waste removal box is located at the back of the spraying box, and a liquid pump D is installed on the waste removal box to draw liquid from the bottom inside the spraying box. A liquid storage tank is located at the back of the waste removal box, and the liquid storage tank is equipped with a pump... The infusion tubes are equipped with pumps A, B, and C for drawing liquid into spraying components A, B, and C, respectively. A liquid inlet is located on the top of the storage tank, and a cover plate is hinged to the inlet. A stirring assembly for stirring the developer is also provided on the storage tank. A material support mesh is placed on the grid plate, and each of the four corners of the mesh is equipped with a vertically oriented guide rod. The grid plate has guide holes that slide with the guide rods. A locking assembly is located at the bottom of each guide rod, and a corresponding locking hole is located at the bottom of each guide hole.
2. The fluorescent penetrant developer spray apparatus of claim 1, wherein: The spraying assembly A includes a spraying pipe A and a dispensing pipe A. Several spraying pipes A are evenly arranged along the left-right direction and along the front-back direction at the bottom of the cap. Nozzles are evenly arranged along the extension direction at the bottom of the spraying pipe A. A dispensing pipe A is provided at the top of the cap. The inlet of the spraying pipe A is connected to the same dispensing pipe A. The inlet of the dispensing pipe A is connected to the outlet of the pump A via a delivery pipe. The inlet of the pump A is connected to the bottom of the storage tank via a delivery pipe.
3. The fluorescent penetrant developer spray apparatus of claim 1, wherein: The spraying assembly B includes a spraying pipe B and a dispensing pipe B. Several spraying pipes B are evenly arranged vertically along the contour of the side wall inside the spraying box. Nozzles are evenly arranged on the side of the spraying pipe B facing the grid plate. A dispensing pipe B is provided outside the spraying box. The inlet of the spraying pipe B is connected to the same dispensing pipe B. The inlet of the dispensing pipe B is connected to the outlet of the pump B via a delivery pipe. The inlet of the pump B is connected to the bottom of the storage tank via a delivery pipe.
4. The fluorescent penetrant developer spray apparatus of claim 1, wherein: The spraying assembly C includes a spraying pipe C and a liquid distribution pipe C. Inside the spraying box, several spraying pipes C are evenly arranged in the left-right direction below the grid plate and in the front-back direction. Nozzles are evenly arranged in the extension direction of the top of the spraying pipe C. A liquid distribution pipe C is provided outside the spraying box. The liquid inlet of the spraying pipe C is connected to the same liquid distribution pipe C. The liquid inlet of the liquid distribution pipe C is connected to the liquid outlet of the liquid pump C through a liquid delivery pipe. The liquid inlet of the liquid pump C is connected to the bottom of the liquid storage tank through a liquid delivery pipe.
5. The fluorescent penetrant developer spray apparatus of claim 1, wherein: The locking assembly includes a rotating block, a rotating rod, and a handle. The rotating block is rotatably connected to the bottom of the guide rod, and the rotating rod is rotatably connected to the guide rod on its internal axis. The handle is rotatably connected to the top of the guide rod. The upper and lower ends of the rotating rod are coaxially connected to the handle and the rotating block, respectively. The rotating block has a protrusion on its side for inserting into a locking hole. The locking hole is divided into a vertical part along the vertical direction and an arc-shaped part in the horizontal plane. The vertical part of the locking hole leads to the bottom of the guide hole, and the front end of the arc-shaped part of the locking hole is connected to the top end of the vertical part.
6. The fluorescent penetrant detection developer spraying device according to claim 1, characterized in that: The inlet of the pump D is provided with a delivery pipe leading to the bottom of the spraying box, and the outlet of the pump D is provided with a delivery pipe leading to the waste removal box.
7. The fluorescent penetrant developer spray apparatus of claim 1, wherein: The grating plate is provided with a groove corresponding to the shape of the support mesh plate. When the support mesh plate is placed in the groove, the upper surface of the support mesh plate is flush with the upper surface of the grating plate.
8. The fluorescent penetrant detection developer spraying device according to claim 1, characterized in that: The stirring assembly includes a motor and a stirring frame. The stirring frame is rotatably connected inside the liquid storage tank. The upper end of the rotating shaft of the stirring frame is rotatably connected to the top of the liquid storage tank. The motor is located on the top of the liquid storage tank. The drive rod of the motor is coaxially connected to the upper end of the rotating shaft of the stirring frame.