An inner wall detection light source and a pipeline inner wall defect detection device

Abstract

This utility model relates to the field of light source structure, and discloses an inner wall detection light source and a pipe inner wall defect detection device, including a light-emitting component, a light-cutting component, and a conical reflector installed on the light-emitting side of the light-emitting component. The light-cutting component is installed between the light-emitting component and the conical reflector, with the tip of the conical reflector facing the light-emitting component. The light-emitting component includes at least two LEDs arranged at intervals along a first direction, and the different LEDs emit different colors of light. The light-cutting component includes a reflector cup and a first diffuser plate. The reflector cup includes a light inlet facing one LED and a light outlet facing the conical reflector, and the first diffuser plate closes the light outlet of the reflector cup. The reflector cup can move back and forth along the first direction to align the light inlet with different LEDs. Each LED is connected to an independent switching component. The inner wall detection light source and pipe inner wall defect detection device of this utility model can meet the detection needs of cylindrical workpieces with inner walls of different colors.

Description

Technical Field

[0001] This utility model relates to the field of light source structure, and in particular to an inner wall detection light source and a pipe inner wall defect detection device. Background Technology

[0002] For cylindrical workpieces such as pipes and oil well casings, the quality of their inner walls directly affects the reliability and safety of the product. However, due to the limited location of the inner walls, traditional inspection methods (such as visual inspection or the use of flaw detectors) often cannot accurately detect defects such as cracks and corrosion on the inner walls.

[0003] When inspecting the inner wall of a cylindrical workpiece, it is necessary to illuminate the inner wall. However, existing flashlight-style illumination methods often result in uneven lighting. Furthermore, some cylindrical workpieces have inner walls of different colors, and a single light source cannot adequately meet the needs of detecting defects on inner walls of different colors.

[0004] Therefore, it is necessary to design an internal wall detection light source and a pipe internal wall defect detection device.

[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0006] This invention provides an inner wall detection light source and a pipe inner wall defect detection device to meet the detection needs of cylindrical workpieces with inner walls of different colors.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An inner wall detection light source includes a light-emitting component, a light-cutting component, and a conical reflector mounted on the light-emitting side of the light-emitting component. The light-cutting component is mounted between the light-emitting component and the conical reflector, and the tip of the conical reflector faces the light-emitting component.

[0009] The light-emitting component includes at least two LED beads arranged at intervals along a first direction, and the different LED beads emit different colors of light; the light-cutting component includes a reflector cup and a first diffuser plate, the reflector cup includes a light inlet for facing one of the LED beads and a light outlet opening towards the conical reflector, and the first diffuser plate closes the light outlet of the reflector cup;

[0010] The reflector cup can move back and forth along the first direction to align the light inlet with different LED beads; each LED bead is connected to an independent switch assembly.

[0011] Optionally, it also includes a support cylinder, in which the light-emitting component, the light-cutting component, and the conical reflector are all mounted;

[0012] The first diffuser plate is fixedly installed in the support cylinder, and the reflector cup can move relative to the first diffuser plate in a first direction;

[0013] An adjustment frame is also slidably installed on the wall of the support cylinder, and one end of the adjustment frame passes through the wall of the support cylinder and is fixedly connected to the reflector cup.

[0014] Optionally, an adjusting screw may also be included;

[0015] The adjusting frame is provided with an adjusting hole, and the screw of the adjusting screw passes through the adjusting hole and is threadedly connected to the wall of the supporting cylinder.

[0016] Optionally, it may also include a cylindrical diffuser surrounding the conical mirror, and the center lines of the cylindrical diffuser and the conical mirror are coaxial.

[0017] Optionally, it may also include a cylindrical stripe plate surrounding the conical mirror, and the center lines of the cylindrical stripe plate and the conical mirror are coaxial.

[0018] Optionally, the inner wall detection light source further includes an annular filter; the annular filter is located on the first diffuser plate and surrounds the reflector cup.

[0019] Optionally, the support cylinder includes a first cylinder section and a second cylinder section;

[0020] The first cylindrical section and the second cylindrical section are rotatably connected by a connecting shaft, the connecting shaft being perpendicular to the center of the support cylinder, and the top of the second cylindrical section is provided with a positioning groove for positioning the first diffuser plate;

[0021] The adjusting frame is installed on the first cylindrical section.

[0022] Optionally, the bottom end of the support cylinder is also equipped with a light-emitting cone-shaped reflector for reflecting the image of the inner wall toward the camera.

[0023] Optionally, it also includes an electric adjustment device for driving the light-cutting assembly to move along the first direction.

[0024] A pipe inner wall defect detection device includes an inner wall detection light source as described in any of the preceding claims.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention provides an inner wall detection light source and a pipe inner wall defect detection device. The light emitted by the lamp beads in the light-emitting component passes through the reflector cup and is directed to the first diffuser plate. Then the light is evenly directed to the conical reflector, and finally the light is directed to the inner wall of the cylindrical workpiece under the reflection of the conical reflector. When the color of the inner wall of the cylindrical workpiece changes, the position of the light-cutting component can be moved so that the light inlet of the reflector cup is aligned with the lamp beads of different light-emitting colors, thereby adjusting the light-emitting color of the inner wall detection light source to meet the detection requirements.

[0027] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a cross-sectional structural schematic diagram of the inner wall detection light source provided in this embodiment of the utility model;

[0030] Figure 2 This is a schematic diagram showing the position of the inner wall detection light source after the position of the light cutting component has been moved, according to an embodiment of this utility model.

[0031] Figure 3 This is a cross-sectional structural schematic diagram of the second type of inner wall detection light source provided in this embodiment of the utility model;

[0032] Figure 4 This is a cross-sectional structural diagram of the third type of inner wall detection light source provided in this embodiment of the utility model.

[0033] Reference numerals: 1. Light-emitting component; 11. Lamp bead; 2. Light-cutting component; 21. Reflector cup; 22. First diffuser plate; 3. Conical reflector; 4. Support cylinder; 41. First cylinder section; 42. Second cylinder section; 43. Connecting shaft; 5. Adjusting bracket; 6. Adjusting screw; 7. Cylindrical diffuser plate; 8. Cylindrical striped plate; 9. Annular filter; 001. Light-emitting conical reflector. Detailed Implementation

[0034] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0035] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0036] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0037] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0038] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0039] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0040] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0041] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0042] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0043] Example 1

[0044] In view of the aforementioned deficiencies in existing internal wall detection light sources, the applicant, based on years of extensive practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, has actively conducted research and innovation in order to overcome the shortcomings of the existing technology and make the internal wall detection light source more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value has finally been created.

[0045] Please refer to Figures 1 to 2This utility model embodiment provides an inner wall detection light source, including a support cylinder 4, a light-emitting component 1, a light-cutting component 2, and a conical reflector 3 installed on the light-emitting side of the light-emitting component 1. The light-cutting component 2 is installed between the light-emitting component 1 and the conical reflector 3, with the tip of the conical reflector 3 facing the light-emitting component 1. The support cylinder 4 supports the light-emitting component 1, the light-cutting component 2, and the conical reflector 3 installed on the light-emitting side of the light-emitting component 1. The first direction is... Figure 1 The horizontal direction.

[0046] The light-emitting component 1 includes at least two LED beads 11 arranged at intervals along a first direction, where the first direction is... Figure 1 The light can be emitted from left to right or right to left, and different LED beads 11 emit different colors of light. The number of LED beads 11 can be set to more, such as three, four, five or even more. The light cutting component 2 includes a reflector cup 21 and a first diffuser plate 22. The reflector cup 21 is horn-shaped and includes a light inlet for facing one LED bead 11 and a light outlet facing the conical reflector 3. The aperture of the light outlet is larger than the aperture of the light inlet, and the first diffuser plate 22 closes the light outlet of the reflector cup 21. Generally, only one LED bead 11 can be lit. The light emitted by the LED bead 11 is reflected by the reflector cup 21 and diffused by the first diffuser plate 22 before being evenly directed toward the conical reflector 3.

[0047] In this embodiment, the reflector cup 21 can move back and forth along the first direction so that the light inlet is aligned with different lamp beads 11. The aligned lamp beads 11 light up, and the misaligned lamp beads 11 turn off, thereby changing the color of the light illuminating the inner wall of the cylindrical workpiece to meet the detection requirements.

[0048] In summary, during the inner wall detection process, the light emitted by the LED beads 11 in the light-emitting component 1 passes through the reflector cup 21 and then shines onto the first diffuser plate 22. The light then shines evenly onto the conical reflector 3, and finally shines onto the inner wall of the cylindrical workpiece under the reflection of the conical reflector 3. When the color of the inner wall of the cylindrical workpiece changes, the position of the light-cutting component 2 can be moved so that the light inlet of the reflector cup 21 is aligned with the LED beads 11 of different light-emitting colors, thereby adjusting the light-emitting color of the inner wall detection light source to meet the detection requirements.

[0049] It should also be noted that, in this embodiment, the first diffuser plate 22 is creatively used to close the light outlet of the reflector cup 21, so that the light emitted from the reflector cup 21 is uniformly projected onto the conical reflector 3. After the reflector cup 21 moves, the light on the opposite sides of the conical reflector 3 is prevented from having a large difference, thereby ensuring the effect of illuminating the inner wall of the cylindrical workpiece.

[0050] Optionally, the inner wall detection light source also includes a support cylinder 4, in which the light-emitting component 1, the light-cutting component 2, and the conical reflector 3 are all installed. A first diffuser plate 22 is positioned within the support cylinder 4, and the reflector cup 21 can slide relative to the first diffuser plate 22 along a first direction without scratching the first diffuser plate 22. An adjustment frame 5 is also slidably mounted on the cylinder wall of the support cylinder 4, with one end of the adjustment frame 5 passing through the cylinder wall and fixedly connected to the reflector cup 21. In this embodiment, by moving the adjustment frame 5 along the first direction, the position of the reflector cup 21 can be changed, allowing the reflector cup 21 to be aligned with different LED beads 11. In this embodiment, the adjustment of the reflector cup 21 is simple, reliable, and easy to operate.

[0051] Optionally, the inner wall detection light source also includes an adjusting screw 6; the adjusting bracket 5 is provided with an adjusting hole, and the screw of the adjusting screw 6 passes through the adjusting hole and is threadedly connected to the wall of the support cylinder 4. In this embodiment, by rotating the adjusting screw, the position of the reflector cup 21 can be changed so that the reflector cup 21 is aligned with different LED beads 11.

[0052] Optionally, such as Figure 1 The inner wall detection light source also includes a cylindrical diffuser plate 7 surrounding the conical reflector 3, and the center lines of the cylindrical diffuser plate 7 and the conical reflector 3 are coaxial. The light emitted by the conical reflector 3 passes through the cylindrical diffuser plate 7 and is directed onto the inner wall of the cylindrical workpiece, improving the uniformity of illumination to facilitate subsequent photographic inspection.

[0053] Optionally, such as Figure 3 The inner wall detection light source also includes a cylindrical stripe plate 8 surrounding the conical reflector 3, and the center lines of the cylindrical stripe plate 8 and the conical reflector 3 are coaxial. It should be further noted that the light reflected from the conical reflector 3 passes through the cylindrical stripe plate 8 and strikes the inner wall of the cylindrical workpiece, forming stripes on the inner wall. This makes it easier to observe whether there are abnormal protrusions or depressions on the inner wall, effectively improving detection accuracy.

[0054] Optionally, the inner wall detection light source also includes an annular filter 9; the annular filter 9 is located on the first diffuser plate 22 and surrounds the reflector cup 21; each lamp bead 11 is connected to an independent switching assembly. In this embodiment, the lamp bead 11 facing the light inlet normally emits light into the reflector cup 21, while the light emitted by other lamp beads 11 can be filtered by the annular filter 9 and then emitted into the conical reflector 3, thereby achieving a good supplementary lighting effect.

[0055] Optionally, such as Figure 4 The support cylinder 4 includes a first cylinder section 41 and a second cylinder section 42; the first cylinder section 41 and the second cylinder section 42 are rotatably connected by a connecting shaft 43, the connecting shaft 43 is perpendicular to the center of the support cylinder 4, and the top of the second cylinder section 42 is provided with a positioning groove for positioning the first diffuser plate 22; the adjustment frame 5 is installed on the first cylinder section 41.

[0056] It should be noted that when the reflector cup 21 moves, the shape of the required annular filter 9 also needs to be changed accordingly, thus requiring the replacement of annular filters 9 with different shapes. In this embodiment, the first cylindrical section 41 is rotated around the connecting shaft 43, thereby separating the first cylindrical section 41 and the second cylindrical section 42 from each other. The reflector cup 21 moves along with the first cylindrical section 41, causing the first cylindrical section 41 and the annular filter 9 to completely separate. At this time, different annular filters 9 can be directly replaced, making the replacement of the annular filter 9 simple and convenient.

[0057] Optionally, the inner wall of the first cylindrical section 41 is a diffuse reflective surface, which can better supplement light downward through the annular filter 9 and improve the uniformity of the supplementary light.

[0058] Optionally, the inner wall detection light source also includes an electric adjustment device, which drives the light-cutting assembly 2 to move along the first direction. When the inner wall detection light source enters the inner hole of the cylindrical workpiece, it can automatically adjust the position of the reflector cup 21 according to actual needs, thus eliminating the need for manual adjustment by the worker, and enabling the detection of a cylindrical workpiece with multiple color rings on its inner wall.

[0059] Preferably, the aperture of the light outlet is not larger than the outer diameter of the LED 11. This prevents interference caused by the light from two LEDs 11 simultaneously entering the reflector cup 21.

[0060] like Figure 4 The inner wall detection light source also includes a light-emitting conical reflector 001. The tip of the light-emitting conical reflector 001 faces the camera. The light-emitting conical reflector 001 can reflect the light on the inner wall of the cylindrical workpiece towards the camera, so that the camera can take pictures for detection.

[0061] Example 2

[0062] A pipe inner wall defect detection device includes an inner wall detection light source as described in any one of Embodiment 1.

[0063] Preferably, the camera is mounted on the support cylinder 4 and located on the bottom side of the inner wall detection light source.

[0064] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. An inner wall detecting light source characterized by, It includes a light-emitting component (1), a light-cutting component (2), and a conical reflector (3) installed on the light-emitting side of the light-emitting component (1). The light-cutting component (2) is installed between the light-emitting component (1) and the conical reflector (3), and the tip of the conical reflector (3) faces the light-emitting component (1). The light-emitting component (1) includes at least two LED beads (11) arranged at intervals along a first direction, and the different LED beads (11) emit different colors of light; the light-cutting component (2) includes a reflector cup (21) and a first diffuser plate (22), the reflector cup (21) includes a light inlet facing one of the LED beads (11) and a light outlet facing the conical reflector (3), and the first diffuser plate (22) closes the light outlet of the reflector cup (21); The reflector cup (21) can move back and forth along the first direction so that the light inlet is aligned with different LED beads (11); each LED bead (11) is connected to an independent switch assembly.

2. The inner wall detection light source according to claim 1, characterized in that, It also includes a support cylinder (4), in which the light-emitting component (1), the light-cutting component (2) and the conical reflector (3) are all installed; The first diffuser plate (22) is fixedly installed in the support cylinder (4), and the reflector cup (21) can move relative to the first diffuser plate (22) in a first direction; An adjustment frame (5) is also slidably installed on the wall of the support cylinder (4), and one end of the adjustment frame (5) passes through the wall of the support cylinder (4) and is fixedly connected to the reflector cup (21).

3. The inner wall detecting light source according to claim 2, characterized by It also includes the adjusting screw (6); The adjusting frame (5) is provided with an adjusting hole, and the screw of the adjusting screw (6) passes through the adjusting hole and is threaded to the wall of the support cylinder (4).

4. The inner wall detecting light source according to claim 2, wherein It also includes a cylindrical diffuser plate (7) surrounding the conical reflector (3), and the center lines of the cylindrical diffuser plate (7) and the conical reflector (3) are coaxial.

5. The inner wall detecting light source according to claim 2, wherein It also includes a cylindrical stripe plate (8) surrounding the conical reflector (3), and the center lines of the cylindrical stripe plate (8) and the conical reflector (3) are coaxial.

6. The inner wall detecting light source according to claim 2, wherein It also includes an annular filter (9); the annular filter (9) is located on the first diffuser plate (22) and surrounds the reflector cup (21).

7. The inner wall detecting light source according to claim 6, characterized by The support cylinder (4) includes a first cylinder section (41) and a second cylinder section (42); The first cylindrical section (41) and the second cylindrical section (42) are rotatably connected by a connecting shaft (43), the connecting shaft (43) being perpendicular to the center of the support cylinder (4), and the top of the second cylindrical section (42) is provided with a positioning groove for positioning the first diffuser plate (22); The adjusting frame (5) is installed on the first cylindrical section (41).

8. The inner wall detecting light source according to claim 7, wherein The bottom end of the support cylinder (4) is also equipped with a light-emitting cone-shaped reflector (001) for reflecting the image of the inner wall toward the camera.

9. The inner wall detecting light source according to claim 1, wherein It also includes an electric adjustment device, which is used to drive the light-cutting component (2) to move along the first direction.

10. A device for detecting defects in the inner wall of a pipe, characterized in that It includes an inner wall detection light source as described in any one of claims 1 to 9.

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