Fluorescent penetrating fluid developing powder applying device

Abstract

The utility model belongs to the technical field of nondestructive inspection, and discloses a fluorescent penetrating fluid developing powder applying device which comprises a device body and a powder storage tank, the device body comprises a connecting piece, a spray pipe and an air bag, a powder storage space is arranged in the connecting piece, and the spray pipe and the air bag are connected to the two ends of the connecting piece respectively and communicated with the powder storage space. A powder suction pipe communicated with the powder storage space is arranged at the bottom of the connecting piece; the powder storage tank is detachably connected with the connecting piece, and the powder suction pipe extends into the powder storage tank. By arranging the air bag and the spraying pipe, targeted spraying is achieved, and good accessibility is achieved; the air bag is small in air injection force, fine and thin in powder output, and accuracy of detection results is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to nondestructive testing technical field especially relates to a fluorescent penetrant liquid display powder applying device. BACKGROUND

[0002] In nondestructive testing technology, the main use fluorescent penetrant liquid penetrates the area to be detected, and then uses the developing powder to display the image. At present, the developing powder mainly has two ways of automatic application and manual application. The automatic application of developing powder mainly uses electrostatic spraying device / system to spray the parts, which is suitable for the inspection of independent components in fixed inspection site. The manual spraying sprays the surface of the components by handheld spray gun or spray tank. The manual spraying is more flexible and portable, especially the spray tank spraying, which has been widely used in online detection of large structure assembly production line such as aircraft assembly.

[0003] However, in the complex structure assembly process, when there is suspicious damage on the surface of the parts in the narrow space composed of multiple parts, or when there is damage on the surface of the components in the limited structure area, the traditional spraying device is easy to cause the measured surface to be inaccessible, thereby causing the secondary disassembly of the components or even being unable to detect. In addition, the traditional spray tank structure has large pressure and more one-time powder, which is easy to affect the detection result. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a fluorescent penetrant liquid display powder applying device, which has simple structure, good accessibility and fine and thin powder output, and ensures the accuracy of the detection result.

[0005] To achieve this purpose, the utility model adopts the following technical scheme: a fluorescent penetrant liquid display powder applying device, comprising a device main body and a powder storage tank, the device main body comprises a connecting piece, a spray pipe and an air bag, a powder storage space is arranged in the connecting piece, the spray pipe and the air bag are connected to the two ends of the connecting piece and are in communication with the powder storage space, and a powder suction pipe in communication with the powder storage space is arranged at the bottom of the connecting piece; the powder storage tank is detachably connected with the connecting piece, and the powder suction pipe extends into the powder storage tank.

[0006] As a preferred, the fluorescent penetrant liquid display powder applying device further comprises a protective cover, the protective cover is detachably connected with the end of the spray pipe away from the connecting piece, and the inner diameter of the protective cover gradually increases in the direction away from the connecting piece along the spray pipe.

[0007] As a preferred, the protective cover is a rubber piece, the protective cover is provided with a mounting port, and the mounting port is sleeved on the spray pipe.

[0008] As a preferred, the fluorescent penetrant liquid display powder applying device further comprises a nozzle, the nozzle is detachably connected with the end of the spray pipe away from the connecting piece, and the inner diameter of the nozzle is smaller than the inner diameter of the spray pipe.

[0009] As preferred, the air bag is inclined downwardly away from one end of the connecting piece.

[0010] As preferred, the device body further comprises a handle, the handle comprising a connecting part, a pressing part and a supporting part, the connecting part being above the air bag and connected with the connecting piece, the pressing part being connected with the connecting part, the pressing part being arranged at an angle with the connecting part and above the side of the air bag, the supporting part being connected at the angle between the connecting part and the pressing part, the supporting part being in the shape of an arc protruding towards the connecting position of the pressing part and the connecting part.

[0011] As preferred, the bottom of the connecting piece is provided with a first interface, and the powder storage tank is threadedly connected with the first interface.

[0012] As preferred, the connecting piece is provided with a second interface, the inner wall of the second interface is provided with an annular positioning groove, the opening of the air bag is provided with a protruding part, the protruding part is arranged around the opening of the air bag, the protruding part extends into the second interface and is matched with the positioning groove.

[0013] As preferred, the powder suction tube is provided with a flow resistance plug away from one end of the connecting piece, and the bottom surface of the flow resistance plug is provided with a hollow structure for passing the developing powder.

[0014] As preferred, the spray pipe and the connecting piece are alloy pieces fixed by welding.

[0015] The user uses the developing powder applying device, presses the air bag, the airflow generated by the air bag blows the developing powder in the powder storage space to the area to be detected through the spray tank, releases the air bag, the air bag is inflated and generates negative pressure in the powder storage space, the developing powder in the powder storage tank is sucked into the powder storage space, and the next powder application is prepared. By arranging the air bag and the spray pipe, on the one hand, the air bag and the spray pipe are simple in structure and convenient to operate, the spray pipe is slender in structure and can extend into the surface of the parts or components in the narrow space formed by multiple parts or the structure limited area, the powder can be sprayed on the surface of the parts in the narrow space without disassembling the parts again, targeted spraying is realized, and good accessibility is achieved; on the other hand, the air bag is small in force when spraying, and the capacity of the powder storage space is limited, the powder is thin and fine during single spraying, and the accuracy of the detection result is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a structural schematic view of the fluorescent penetrant liquid developing powder applying device of the utility model embodiment;

[0017] Fig. 2 is an installation schematic view of the protective cover of the utility model embodiment;

[0018] Fig. 3 This is a schematic diagram of the nozzle installation according to an embodiment of the present invention.

[0019] In the diagram: 100, main body of the device; 110, connecting part; 111, powder storage space; 112, powder suction pipe; 113, first interface; 114, second interface; 115, flow-blocking plug; 120, nozzle; 130, air bag; 200, powder storage tank; 300, protective cover; 310, mounting port; 400, nozzle; 500, handle; 510, connecting part; 520, pressing part; 530, support part. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0024] With reference to Figs. 1 to 3 As shown in the drawings, the fluorescent penetrant powder applying device provided by the embodiment of the present application comprises a device main body 100 and a powder storage tank 200. The device main body 100 comprises a connecting piece 110, a spray pipe 120 and an air bag 130. The connecting piece 110 is approximately T-shaped in shape. The connecting piece 110 is internally provided with a powder storage space 111. The spray pipe 120 and the air bag 130 are respectively connected to two ends of the connecting piece 110 and are both in communication with the powder storage space 111. The bottom of the connecting piece 110 is provided with a powder suction pipe 112 in communication with the powder storage space 111. The powder storage tank 200 is detachably connected to the connecting piece 110. The powder suction pipe 112 extends into the powder storage tank 200. Optionally, the spray pipe 120 and the connecting piece 110 can be connected by clamping, screwing, bonding, welding or the like. The powder storage tank 200 and the connecting piece 110 can be detachably connected by clamping, screwing, locking or the like. Details are not described herein again.

[0025] It can be understood that when a user uses the powder applying device, the air bag 130 is pressed. The airflow generated by the air bag 130 blows the penetrant powder in the powder storage space 111 to the area to be inspected through the spray pipe. When the air bag 130 is released, the air bag 130 is inflated and generates negative pressure in the powder storage space 111. The penetrant powder in the powder storage tank 200 is sucked into the powder storage space 111, preparing for the next powder application. By arranging the air bag 130 and the spray pipe 120, on the one hand, the air bag 130 and the spray pipe 120 are simple in structure and convenient to operate. The spray pipe 120 is slender in structure and can extend into the surface of a part or a component in a narrow space or a structure-restricted area formed by multiple parts. The powder can be sprayed on the surface of the part in the narrow space without disassembling the parts twice, realizing targeted spraying and having good accessibility. On the other hand, the air bag 130 has small force when spraying. The capacity of the powder storage space 111 is limited. The powder is thin and fine during single powder spraying, ensuring the accuracy of the detection result.

[0026] Further, the end of the powder suction pipe 112 away from the connecting piece 110 is provided with a flow resistance plug 115. The bottom surface of the flow resistance plug 115 is provided with a hollow structure for the penetrant powder to pass through. Optionally, the hollow structure can be a plurality of small holes, a filter screen or the like arranged on the bottom of the flow resistance plug 115. Details are not described herein again.

[0027] By arranging the flow resistance plug 115, the flow resistance plug 115 can limit the flow of the penetrant powder, avoiding the penetrant powder from flowing into the powder suction pipe 112 rapidly and in large quantity, increasing the powder output of the spray pipe 120 and ensuring that the powder stored in the spray pipe 120 is thin and uniform.

[0028] With reference to Fig. 1 It can be understood that the end of the air bag 130 away from the connecting piece 110 is inclined downward.

[0029] The air bag 130 is obliquely arranged, which can avoid the problems that the air bag 130 is horizontally arranged, the air outlet direction of the air bag 130 is parallel to the spray pipe 120, the powder outlet amount of the spray pipe 120 is large, the air bag 130 is vertically arranged, the air outlet direction of the air bag 130 is perpendicular to the spray pipe 120, the air flow resistance is increased, and the powder outlet of the spray pipe 120 is not smooth. On the other hand, the obliquely arranged air bag 130 also conforms to ergonomics, is convenient for the user to hold, and enhances the use feeling of the developer application device.

[0030] Further, the device body 100 further comprises a handle 500, the handle 500 comprises a connecting portion 510, a pressing portion 520 and a supporting portion, the connecting portion 510 is horizontally arranged, the connecting portion 510 is located above the air bag 130 and connected with the connecting piece 110, the pressing portion 520 is connected with the connecting portion 510, the pressing portion 520 is arranged at an angle with the connecting portion 510 and located above the side of the air bag 130, and the supporting portion is connected at the angle between the connecting portion 510 and the pressing portion 520, and the shape of the supporting portion is arc-shaped protruding towards the connecting portion 510 and the pressing portion 520.

[0031] By arranging the handle 500, the pressing portion 520 of the handle 500 can provide support for the air bag 130, and the arc-shaped supporting portion protruding towards the connecting portion 510 and the pressing portion 520 can provide support for the user's tiger mouth, which is convenient for the user to hold and exert force, and thus facilitates the user to control the powder outlet and improves the user experience.

[0032] Continuing to refer to Figs. 1 to 3 It can be understood that the bottom of the connecting piece 110 is provided with a first interface 113, the inner peripheral wall of the first interface 113 is provided with an internal thread, and the powder storage tank 200 is threadedly connected with the first interface 113.

[0033] The threaded connection mode is adopted to fix the powder storage tank 200, which ensures the sealing between the powder storage tank 200 and the connecting piece 110, improves the installation stability and the convenience of disassembly and assembly of the powder storage tank 200.

[0034] Further, the connecting piece 110 is provided with a second interface 114, the inner wall of the second interface 114 is provided with an annular positioning groove, the opening of the air bag 130 is provided with a protruding portion, the protruding portion is arranged around the opening of the air bag 130, the protruding portion extends into the second interface 114 and is connected with the positioning groove.

[0035] By arranging the protruding portion and the positioning groove, the connection structure between the air bag 130 and the connecting piece 110 is simplified, the air bag 130 is plug and play, which is convenient for the user to disassemble and assemble the air bag 130 with elasticity, ensures the installation stability of the air bag 130, and the protruding portion is connected into the positioning groove, which can also ensure the sealing between the air bag 130 and the connecting piece 110, avoid the air leakage of the air bag 130 affecting the powder outlet during use, and improve the working stability of the developer application device.

[0036] In some embodiments, the protrusion and the positioning groove are both circular arc-shaped in cross section, so as to increase the contact area between the protrusion and the inner wall of the positioning groove, and further improve the mounting stability of the air bag 130.

[0037] Further, the spray pipe 120 and the connecting piece 110 are alloy pieces fixed by welding. Alternatively, the spray pipe 120 and the connecting piece 110 can be made of brass, stainless steel or other materials, which will not be described here.

[0038] The spray pipe 120 and the connecting piece 110 are both alloy pieces fixed by welding. On the one hand, the sealing between the spray pipe 120 and the connecting piece 110 can be greatly improved, so as to avoid leakage of the developing powder. On the other hand, the structural strength and service life of the developing powder applying device can be improved.

[0039] Referring to Fig. 2 It can be understood that the fluorescent penetrant developing powder applying device further comprises a protective cover 300, which is detachably connected to the end of the spray pipe 120 away from the connecting piece 110. In the direction of the spray pipe 120, the inner diameter of the protective cover 300 gradually increases away from the connecting piece 110. That is, the spray pipe 120 has a shape of a horn-shaped opening gradually expanding away from the connecting piece 110.

[0040] By setting the flared protective cover 300, for the complex assembly of peripheral components and the working condition requiring additional protection, the protective cover 300 can prevent the developing powder from spreading to other areas and avoid subsequent cleaning.

[0041] Further, the protective cover 300 is a rubber piece, and the center of the protective cover 300 is provided with an elastic mounting opening 310. The mounting opening 310 is sleeved on the spray pipe 120, and the inner wall of the mounting opening 310 and the outer wall of the spray pipe 120 abut.

[0042] The user moves the protective cover 300 forward to reduce the length of the spray pipe 120 extending into the protective cover 300, so as to increase the distance between the outlet of the spray pipe 120 and the edge of the protective cover 300, which can reduce the spraying thickness of the developing powder. The user moves the protective cover 300 backward to increase the length of the spray pipe 120 extending into the protective cover 300, so as to reduce the distance between the outlet of the spray pipe 120 and the edge of the protective cover 300, which can increase the spraying thickness of the developing powder. By using the elastic mounting of the protective cover 300, in addition to ensuring the stable installation of the protective cover 300, the user can also conveniently control the installation position of the protective cover 300 on the spray pipe 120. Since the protective cover 300 limits the spraying area of the developing powder, moving the protective cover 300 can adjust the spraying thickness of the developing powder, thereby improving the controllability of the developing powder applying device.

[0043] Referring to Fig. 3As shown, it can be understood that the fluorescent penetrant developing powder applying device further comprises a nozzle 400, which is detachably connected with the one end of the spray pipe 120 away from the connecting piece 110, and the inner diameter of the nozzle 400 is smaller than that of the spray pipe 120.

[0044] By additionally arranging the nozzle 400 with a smaller inner diameter, the user can spray a smaller area or a smaller space of the region to be inspected, further expand the application range of the developing powder applying device, and improve the practicability of the developing powder applying device.

[0045] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fluorescent penetrant image developing powder applicator characterized by, The application relates to a fluorescent permeating liquid imaging powder applying device. The device body (100) comprises a connecting piece (110), a spray pipe (120) and an air bag (130), the connecting piece (110) is internally provided with a powder storage space (111), the spray pipe (120) and the air bag (130) are connected to two ends of the connecting piece (110) and are in communication with the powder storage space (111), and the bottom of the connecting piece (110) is provided with a powder suction pipe (112) in communication with the powder storage space (111). The powder storage tank (200) is detachably connected with the connecting piece (110), and the powder suction pipe (112) extends into the powder storage tank (200).

2. The fluorescent penetrant visualization powder applicator of claim 1, wherein, The fluorescent permeating liquid imaging powder applying device further comprises a protective cover (300) which is detachably connected with one end of the spray pipe (120) away from the connecting piece (110), and the inner diameter of the protective cover (300) gradually increases in the direction away from the connecting piece (110).

3. The fluorescent penetrant visualization powder applicator of claim 2, wherein, The protective cover (300) is a rubber part, and the protective cover (300) is provided with a mounting port (310) which is sleeved on the spray pipe (120).

4. The fluorescent penetrant visualization powder applicator of claim 1, wherein, The fluorescent permeating liquid imaging powder applying device further comprises a nozzle (400) which is detachably connected with one end of the spray pipe (120) away from the connecting piece (110), and the inner diameter of the nozzle (400) is smaller than that of the spray pipe (120).

5. The fluorescent penetrant visualization powder applicator of any of claims 1-4, wherein, One end of the air bag (130) away from the connecting piece (110) is arranged in a downward inclination.

6. The fluorescent penetrant visualization powder applicator of claim 5, wherein, The device body (100) further comprises a handle (500) which comprises a connecting part (510), a pressing part (520) and a supporting part (530), the connecting part (510) is located above the air bag (130) and is connected with the connecting piece (110), the pressing part (520) is connected with the connecting part (510), the pressing part (520) is arranged at an angle with the connecting part (510) and is located above the side of the air bag (130), and the supporting part (530) is connected at the angle between the connecting part (510) and the pressing part (520), and the shape of the supporting part (530) is in an arc shape which is convex towards the connecting position of the pressing part (520) and the connecting part (510).

7. The fluorescent penetrant visualization powder applicator of any one of claims 1-4, wherein, The bottom of the connecting piece (110) is provided with a first interface (113), and the powder storage tank (200) is threadedly connected with the first interface (113).

8. The fluorescent penetrant visualization powder applicator of any one of claims 1-4, wherein, The connecting piece (110) is provided with a second interface (114), the inner wall of the second interface (114) is provided with an annular positioning groove, the opening of the air bag (130) is provided with a protruding part which surrounds the opening of the air bag (130), the protruding part extends into the second interface (114) and is in clamping cooperation with the positioning groove.

9. The fluorescent penetrant visualization powder applicator of any one of claims 1-4, wherein, One end of the powder suction pipe (112) away from the connecting piece (110) is provided with a flow resistance plug (115), and the bottom surface of the flow resistance plug (115) is provided with a hollow structure for the imaging powder to pass through.

10. The fluorescent penetrant visualization powder applicator of any one of claims 1-4, wherein, The nozzle (120) and the connecting piece (110) are welded fixed alloy pieces.

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