Concrete structure crack detector

Abstract

The utility model discloses a concrete structure crack detector relates to detection equipment field, including detection head, the lens place of setting in detection head, threaded sleeve, detachable setting on the connecting sleeve, and the side end of threaded sleeve is provided with a plurality of protruding, thereby the effective protection of the lens on detection head, and when the protruding appears abrasion, can carry out quick replacement to it, and the ball and concrete surface form point contact, and when moving through the free rotation (not protruding direct sliding) reduce resistance, make detection head in the crack tracking process move more smoothly, especially suitable for long distance or wide range detection task, and the ball is fixed in telescopic piece end through the connecting barrel, and the protruding height is greater than protruding, ensures that the ball contacts the surface preferentially when moving, avoids protruding abrasion, and the even distribution of ball can prevent detection head from being inclined, and maintains the vertical alignment of lens and crack.

Description

Technical Field

[0001] This utility model relates to testing equipment technology, specifically to a concrete structure crack detector. Background Technology

[0002] Concrete cracks refer to cracks that form in concrete structures due to changes in their physical structure caused by the combined effects of internal and external factors. They are generally classified into three types: static cracks, active cracks, etc. The appearance of cracks is one of the main hazards to concrete structures: on the one hand, it leads to a decrease in structural stiffness and an increase in brittleness, thus affecting its service performance; on the other hand, it may also accelerate the aging effects of the environment on the structure, causing the surface protective layer to peel off, thereby impairing the durability of the structure.

[0003] When detecting concrete cracks, the detection head is typically placed on the ground and aligned with the crack. The detection is then completed by taking photos, analyzing, and recording the results. Because the detection head is a precision component, it should not be in direct contact with the ground. Therefore, its bottom usually has multiple raised structures for support. These raised structures maintain a certain distance between the detection head and the ground while ensuring sufficient light during imaging to guarantee image quality.

[0004] However, currently commonly used detection heads (such as Figure 5 The device shown has a certain drawback: its bottom support protrusion is an integrally molded design with the housing. If the protrusion is damaged or worn, it will be difficult to effectively support the detection head, thus affecting the accuracy of the detection results. Furthermore, due to the integral structure, the replacement process is complex and costly.

[0005] Based on this, the present invention provides a concrete structure crack detector. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a concrete structure crack detector, which effectively protects the lens on the detection head and allows for quick replacement when the protrusion wears out. The ball bearings form point contact with the concrete surface, and during movement, they rotate freely (rather than sliding directly on the protrusion), reducing resistance and making the detection head move more smoothly during crack tracking. This is especially suitable for long-distance or large-area detection tasks. The ball bearings are fixed to the end of the telescopic component via a connecting cylinder, and their protrusion height is greater than that of the protrusion, ensuring that the ball bearings preferentially contact the surface during movement and avoiding wear on the protrusion. At the same time, the uniform distribution of the ball bearings prevents the detection head from tilting and maintains the vertical alignment of the lens with the crack.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a concrete structure crack detector, including a detection head; a connecting sleeve disposed at the lens of the detection head; and a threaded sleeve detachably disposed on the connecting sleeve, wherein the side end of the threaded sleeve is provided with multiple protrusions.

[0008] Furthermore, a movable component is provided on the side end of the connecting sleeve for the detection head to move within the detection area.

[0009] Furthermore, the movable component includes multiple telescopic components, all disposed on the side end of the connecting sleeve; and multiple ball bearings, sequentially disposed on the side end of the corresponding telescopic component.

[0010] Furthermore, the ball bearings are mounted on the telescopic member via a connecting cylinder.

[0011] Furthermore, the telescopic component includes a movable rod slidably disposed on the connecting sleeve, with the side end of the movable rod arranged inside the connecting sleeve; an elastic member disposed in the middle of the movable rod for resetting the movable rod during extension and retraction; and a connecting cylinder disposed at the side end of the movable rod.

[0012] Furthermore, the side end of the connecting cylinder protrudes beyond the side end of the protrusion.

[0013] Compared with existing technologies, the concrete structure crack detector provided by this utility model has a connecting sleeve installed at the lens of the detection head, and a threaded sleeve is then installed on the side of the connecting sleeve. During concrete crack detection, the protrusion on the threaded sleeve contacts the concrete surface, thus preventing lens wear. If the protrusion is damaged, the threaded sleeve can be directly removed and replaced. This structural design effectively protects the lens on the detection head and allows for quick replacement of the protrusion when it wears out.

[0014] The ball bearings make point contact with the concrete surface and reduce resistance by rotating freely (rather than sliding directly on the protrusion) during movement, making the detection head move more smoothly during crack tracking. This is especially suitable for long-distance or large-area detection tasks. The ball bearings are fixed to the end of the telescopic component by a connecting cylinder, and their protrusion height is greater than that of the protrusion, ensuring that the ball bearings contact the surface first during movement and avoiding wear on the protrusion. At the same time, the even distribution of the ball bearings can prevent the detection head from tilting and maintain the vertical alignment of the lens with the crack. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of the concrete structure crack detector in this embodiment of the present invention;

[0017] Figure 2 This is a side view of the concrete structure crack detector in this embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the connecting sleeve, threaded sleeve and protrusion in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the moving part in an embodiment of this utility model;

[0020] Figure 5 This is a schematic diagram of the detection head structure of a concrete crack detector in the existing technology.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Detection head; 2. Connecting sleeve; 3. Threaded sleeve; 4. Protrusion; 5. Moving part; 500. Ball bearing; 501. Connecting cylinder; 502. Moving rod; 503. Elastic component. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] As attached Figure 1 To be continued Figure 4 As shown:

[0025] Example 1:

[0026] This utility model provides a concrete structure crack detector, including a detection head 1, a connecting sleeve 2, and a threaded sleeve 3. The detection head 1 is used in conjunction with the main unit, specifically the HC-F800 model (HC-F600, HC-CK103, or ZBL-F120 model). The detection head 1 captures images of cracks on the concrete surface using a high-definition camera (such as a microscope lens or industrial camera). Some devices support 40-60x optical magnification to ensure that crack details are clearly visible. The color image is converted into a grayscale image, and then the crack and background are segmented using an algorithm (such as the Otsu's method) to generate a black and white binary image. The crack boundary is scanned pixel by pixel, the coordinates of the two edges are extracted, and the actual width of the crack is calculated.

[0027] The connecting sleeve 2 is located at the lens of the detection head 1; the threaded sleeve 3 is detachably mounted on the connecting sleeve 2, and the side end of the threaded sleeve 3 is provided with multiple protrusions 4. The threaded sleeve 3 and the protrusions 4 are integrally formed and made of plastic. The threaded sleeve 3 and the connecting sleeve 2 are connected by threads.

[0028] Specifically, a connecting sleeve 2 is installed on the lens of the detection head 1, and then a threaded sleeve 3 is installed on the side of the connecting sleeve 2. When detecting concrete cracks, the protrusion 4 on the threaded sleeve 3 can contact the concrete surface, thereby avoiding lens wear. When the protrusion 4 is damaged, the threaded sleeve 3 can be directly removed and replaced. By having the protrusion 4 on the threaded sleeve 3 directly contact the concrete surface, the lens of the detection head 1 is always in an elevated state, completely avoiding friction or collision with the rough contact surface, significantly reducing the risk of lens wear, ensuring image clarity and equipment lifespan. The threaded connection method is stable and reliable, easy to install and remove, and requires no professional tools or complicated procedures. Ordinary operators can complete the replacement, which is conducive to rapid on-site operation.

[0029] This structural design effectively protects the lens on the detection head 1, and allows for quick replacement of the protrusion 4 when it becomes worn.

[0030] Example 2:

[0031] This embodiment is a further optimization based on the first embodiment described above. The parts that are the same as those in the aforementioned technical solution will not be repeated here. Figure 2 and Figure 3 As shown, in order to better realize this utility model, the following arrangement is adopted. In this embodiment, a movable part 5 is provided on the side end of the connecting sleeve 2 for the detection head 1 to move in the detection area.

[0032] like Figure 4 As shown, the movable component 5 includes multiple telescopic components and multiple ball bearings 500; the multiple telescopic components are all disposed on the side end of the connecting sleeve 2; the multiple ball bearings 500 are sequentially disposed on the side end of the corresponding telescopic component.

[0033] like Figure 3 and Figure 4 As shown, the ball bearing 500 is mounted on the telescopic member via the connecting cylinder 501, and the ball bearing 500 and the connecting cylinder 501 are rotatably mounted.

[0034] like Figure 4 As shown, the telescopic component includes a movable rod 502 and an elastic member 503; the movable rod 502 is slidably disposed on the connecting sleeve 2, and the side end of the movable rod 502 is arranged inside the connecting sleeve 2; the elastic member 503 is disposed in the middle of the movable rod 502 and is used for the telescopic return of the movable rod 502, and the elastic member 503 is a spring structure; the connecting cylinder 501 is disposed at the side end of the movable rod 502, a baffle is disposed in the middle of the movable rod 502, the spring passes through the middle of the movable rod 502, and one end of the spring contacts the baffle, and the other end contacts the cavity in the connecting sleeve 2.

[0035] Specifically, the telescopic component can also be a spring telescopic rod installed in the connecting sleeve 2, with the ball bearing 500 disposed at the movable end of the spring telescopic rod via the connecting cylinder 501 and arranged outside the connecting sleeve 2.

[0036] like Figure 1 and Figure 2 As shown, the side end of the connecting cylinder 501 protrudes from the side end of the protrusion 4, and both the protrusion 4 and the moving part 5 are arranged in a ring array.

[0037] Specifically, the detection head 1 needs to move on the concrete surface during the detection operation. To reduce the wear of the protrusion 4 and extend the service life of the component, this solution adds a moving part 5. This component contacts the concrete surface through ball bearings 500. When the detection head 1 is moved, the ball bearings 500 can rotate freely, thereby achieving smooth displacement of the detection head 1 and reducing frictional resistance;

[0038] During the inspection, the operator only needs to lightly press the inspection head 1 to make the protrusion 4 contact the concrete surface. At this time, each moving rod 502 retracts under pressure, driving the ball bearing 500 to retract, thereby ensuring that the protrusion 4 is stably attached to the concrete surface. After the inspection is completed, the inspection head 1 is released, and the elastic component 503 quickly extends, pushing the moving rod 502 to reset, causing the protrusion 4 to automatically separate from the concrete surface, playing a role in assisting separation and buffering protection.

[0039] Through this structural design, the ball bearing 500 forms point contact with the concrete surface. During movement, it reduces resistance by rotating freely (rather than sliding directly on the protrusion 4), making the movement of the detection head 1 smoother during crack tracking. This is especially suitable for long-distance or large-area detection tasks. The ball bearing 500 is fixed to the end of the telescopic component through the connecting cylinder 501. Its protrusion height is greater than that of the protrusion 4, ensuring that the ball bearing 500 contacts the surface first during movement and avoiding wear on the protrusion 4. At the same time, the uniform distribution of the ball bearing 500 can prevent the detection head 1 from tilting and maintain the vertical alignment of the lens with the crack.

[0040] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concrete structure crack detector, characterized in that, include: Detection head (1); A connecting sleeve (2) is provided at the lens of the detection head (1); A threaded sleeve (3) is detachably mounted on the connecting sleeve (2), and the side end of the threaded sleeve (3) is provided with a plurality of protrusions (4).

2. The concrete structure crack detector according to claim 1, characterized in that, The side end of the connecting sleeve (2) is provided with a movable part (5) for the detection head (1) to move in the detection area.

3. The concrete structure crack detector according to claim 2, characterized in that, The movable component (5) includes: Multiple telescopic components are provided on the side end of the connecting sleeve (2); Multiple balls (500) are sequentially arranged on the side of the corresponding telescopic component.

4. The concrete structure crack detector according to claim 3, characterized in that, The ball bearing (500) is mounted on the telescopic member via a connecting cylinder (501).

5. The concrete structure crack detector according to claim 4, characterized in that, The telescopic component includes: The movable rod (502) is slidably disposed on the connecting sleeve (2), and the side end of the movable rod (502) is arranged inside the connecting sleeve (2); An elastic member (503) is disposed in the middle of the movable rod (502) for resetting the movable rod (502) during extension and retraction. The connecting cylinder (501) is disposed on the side end of the moving rod (502).

6. The concrete structure crack detector according to claim 4, characterized in that, The side end of the connecting cylinder (501) protrudes from the side end of the protrusion (4).

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