Laser scanning imaging instrument for concrete surface cracks

Abstract

The utility model relates to concrete crack detection technical field discloses concrete surface crack laser scanning imaging appearance, including mounting panel, the bottom fixed mounting of mounting panel has the support frame, the bottom of mounting panel is opened and has the plug -in interface, the inside mounting of support frame has the connecting sleeve, the inner wall bottom fixed mounting of connecting sleeve has the connecting ring, the inside fixed sleeve joint of connecting ring has the detection device body, the top of connecting ring installs the elastic piece, the inside installation of connecting sleeve top penetrates to the plug -in interface has the sliding ring, the top of elastic piece installs in the inner wall top of plug -in interface. In the utility model, the connecting sleeve extrusion elastic piece is contracted in the inside of plug -in interface, makes the connecting sleeve and detection device body resist at the crack of concrete outer surface, the gyro wheel rotation can drive detection device body to carry out laser scanning imaging to the crack, and detection device body can be fully attached to the concrete outer surface with the help of elastic piece and connecting sleeve.

Description

Technical Field

[0001] This utility model relates to the field of concrete crack detection technology, and in particular to a laser scanning imager for concrete surface cracks. Background Technology

[0002] The concrete surface crack laser scanning imager is a special equipment for concrete structure inspection that integrates a laser ranging system and an optical imaging system. It scans the concrete surface by emitting a laser beam, calculates the three-dimensional coordinates of the measured point by combining the laser pulse reflection time with the scanning angle to form point cloud data, and then reconstructs a three-dimensional model of the concrete surface by fusing optical image information, thereby achieving high-precision measurement of parameters such as crack location, width, and length.

[0003] When detecting cracks on the surface of concrete, personnel need to hold a concrete laser scanning imaging device to scan the cracks. The personnel need to hold the device with one hand to scan and hold the transmission display screen with the other hand to observe. The operation is inconvenient. Therefore, there is an urgent need for a concrete surface crack laser scanning imaging instrument. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a laser scanning imager for cracks on concrete surfaces, which aims to improve the problem that the detection device requires one hand to hold the device for scanning and the other hand to hold the transmission display screen for observation, which is inconvenient to operate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a laser scanning imager for cracks on concrete surfaces, comprising a mounting plate, a support frame fixedly mounted on the bottom of the mounting plate, an insertion interface provided on the bottom of the mounting plate, a connecting sleeve installed inside the support frame, a connecting ring fixedly mounted on the bottom of the inner wall of the connecting sleeve, a detection device body fixedly sleeved inside the connecting ring, an elastic element installed on the top of the connecting ring, a sliding ring installed through the top of the connecting sleeve into the insertion interface, and the top of the elastic element installed on the top of the inner wall of the insertion interface.

[0006] With the above technical solution, the support frame is installed at the bottom of the mounting plate. The inside of the support frame is hollow, so that the connecting sleeve can be inserted into the insertion interface opened at the bottom of the mounting plate from the inside of the support frame. The top of the connecting sleeve is fixedly installed with a sliding ring that fits against the inner wall of the insertion interface. The connecting sleeve can move vertically up and down inside the insertion interface with the help of the sliding ring. The detection device body can be inserted into the inside of the connecting ring. The outer wall of the connecting ring is fixedly installed on the inner wall of the connecting sleeve.

[0007] Preferably, four rollers are rotatably mounted on the outer wall of the support frame, and the four rollers are arranged in a rectangular array on the outer wall of the support frame.

[0008] Preferably, a placement rack is fixedly installed on the top of the mounting plate, and the outer wall of the placement rack has a slot.

[0009] Preferably, a display is installed inside the shelf, and the outer wall of the display has holes.

[0010] Preferably, a fixing plate is fixedly installed on the top of the mounting plate, and a fixing bracket is fixedly installed on the side of the fixing plate away from the placement frame.

[0011] Preferably, the fixing frame has a handle hinged inside, and a telescopic rod is slidably installed inside the handle.

[0012] Preferably, the end of the telescopic rod away from the handle is hinged with a snap-fit ​​plate.

[0013] Preferably, a connecting plate is fixedly installed on the top of the mounting plate, and a snap-fit ​​groove is fixedly installed on the side of the connecting plate near the snap-fit ​​plate, and the snap-fit ​​plate snaps into the inside of the snap-fit ​​groove.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by pressing the roller against the outer surface of the concrete, the connecting sleeve can compress the elastic element inside the insertion interface and shrink, so that the connecting sleeve and the detection device body are pressed against the crack on the outer surface of the concrete. The rotation of the roller can drive the detection device body to perform laser scanning imaging on the crack. The detection device body can be fully fitted against the outer surface of the concrete with the help of the elastic element and the connecting sleeve, avoiding the inability to accurately align and scan if there are depressions on the outer surface of the concrete. Furthermore, the roller makes it more convenient to move the detection device body.

[0015] 2. In this utility model, pulling the telescopic rod extends it from inside the handle, which increases the overall length of the handle and the telescopic rod. When a person holds the telescopic rod and presses the roller against the outer surface of the concrete, it can scan and detect cracks at high locations. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the laser scanning imager for concrete surface cracks proposed in this utility model. Figure 2 This is a schematic diagram of the connecting sleeve of the laser scanning imager for concrete surface cracks proposed in this utility model. Figure 3 This is a schematic cross-sectional view of the support frame of the laser scanning imager for concrete surface cracks proposed in this utility model. Figure 4 This is a schematic diagram of the telescopic rod of the laser scanning imager for concrete surface cracks proposed in this utility model.

[0017] Legend: 1. Mounting plate; 101. Support frame; 102. Insertion interface; 103. Connecting sleeve; 104. Connecting ring; 105. Detection device body; 106. Elastic element; 107. Sliding ring; 2. Roller; 3. Placement frame; 31. Bayonet; 32. Display; 33. Hole; 4. Fixing plate; 41. Fixing bracket; 42. Handle; 43. Telescopic rod; 5. Snap-fit ​​plate; 6. Connecting plate; 61. Snap-fit ​​groove. Detailed Implementation

[0018] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Reference Figure 1-3 An embodiment of this utility model provides a laser scanning imager for cracks on concrete surfaces, comprising a mounting plate 1, a support frame 101 fixedly mounted on the bottom of the mounting plate 1, an insertion interface 102 opened on the bottom of the mounting plate 1, a connecting sleeve 103 installed inside the support frame 101, a connecting ring 104 fixedly mounted on the bottom of the inner wall of the connecting sleeve 103, a detection device body 105 fixedly sleeved inside the connecting ring 104, an elastic element 106 installed on the top of the connecting ring 104, a sliding ring 107 installed through the top of the connecting sleeve 103 into the inside of the insertion interface 102, and the top of the elastic element 106 installed on the top of the inner wall of the insertion interface 102.

[0020] Rollers 2 are rotatably mounted on the outer wall of the support frame 101. There are four rollers 2, which are arranged in a rectangular array on the outer wall of the support frame 101.

[0021] Specifically, the support frame 101 is installed at the bottom of the mounting plate 1. The inside of the support frame 101 is hollow, so that the connecting sleeve 103 can be inserted into the insertion interface 102 opened at the bottom of the mounting plate 1 from the inside of the support frame 101. A sliding ring 107 that fits against the inner wall of the insertion interface 102 is fixedly installed on the top of the connecting sleeve 103, so that the connecting sleeve 103 can move vertically up and down inside the insertion interface 102 with the help of the sliding ring 107. The detection device body 105 can be inserted into the inside of the connecting ring 104. The outer wall of the connecting ring 104 The connecting ring 104 is fixedly installed on the inner wall of the connecting sleeve 103, so that the connecting ring 104 can create a gap between the detection device body 105 and the connecting sleeve 103. The bottom of the elastic element 106 is fixedly installed on the top of the connecting ring 104. The top of the elastic element 106 passes through the support frame 101 and is fixedly installed on the top of the inner wall of the insertion interface 102. The bottom of the connecting sleeve 103 is lower than the detection device body 105. The four rollers 2 are rotatably installed on the outer wall of the support frame 101, so that the support frame 101 and the mounting plate 1 can move their positions with the help of the four rollers 2. When inspecting cracks on the outer surface of a concrete component, the detection device body 105 is aligned with the crack, and the roller 2 is pressed against the outer surface of the concrete. At this time, the connecting sleeve 103 compresses the elastic element 106 inside the insertion interface 102, causing the connecting sleeve 103 to press against the outer surface of the concrete. Thus, the detection device body 105 inside the connecting sleeve 103 can be aligned with the outside of the crack. By pushing the mounting plate 1, the roller 2 is moved, allowing the detection device body 105 to move along the crack, achieving the effect of using the detection device body 105 to perform laser scanning imaging of the crack. The detection device body 105 can fully fit against the outer surface of the concrete with the help of the elastic element 106 and the connecting sleeve 103, avoiding the inability to accurately align and scan in areas with depressions on the outer surface of the concrete. Furthermore, the roller 2 makes it easier to move the detection device body 105.

[0022] It is important to note that laser scanning imagers for concrete surface cracks typically integrate a laser ranging system and an optical imaging system. The instrument emits a laser beam to scan the concrete surface, and calculates the distance between the target point and the scanner by measuring the time it takes for the laser pulse to travel from emission to reflection. Simultaneously, a built-in encoder measures the lateral and longitudinal scanning angles of the laser pulse, thereby acquiring the three-dimensional coordinate information of the measured point and forming point cloud data. After processing, this point cloud data, combined with image information acquired by the optical imaging system, can reconstruct a three-dimensional model of the concrete surface, and then analyze parameters such as the location, width, and length of cracks. The internal wiring and structural connections of the detection device body 105 are existing technologies, and their working principle is common knowledge to those skilled in the art, and will not be elaborated here. The elastic element 106 is a metal helical spring that provides elastic force to the connecting sleeve 103.

[0023] Considering the issue of how to achieve real-time observation of the scanned cracks, refer to Figure 1 A mounting bracket 3 is fixedly mounted on the top of the mounting plate 1, and a slot 31 is provided on the outer wall of the mounting bracket 3. A display 32 is installed inside the mounting bracket 3, and a hole 33 is provided on the outer wall of the display 32.

[0024] Specifically, the placement frame 3 is fixedly installed on the top of the mounting plate 1, and the interior of the placement frame 3 is provided with a slot that fits the shape and size of the display 32, so that the display 32 can be snapped into the interior of the placement frame 3. When the personnel push the detection device body 105 to move and scan the data generated by the cracks on the outer surface of the concrete, the data can be transmitted to the display 32 in real time. The personnel can judge the detected cracks by viewing the display screen of the display 32. The hole 33 on the outer wall of the display 32 is located inside the slot 31, and the personnel can pry open the hole 33 to disassemble the display 32, and then connect it to the detection device body 105 through the data cable, so that the display 32 can be picked up and observed.

[0025] Secondly, considering how personnel should move mounting plate 1, refer to... Figure 3 and Figure 4 A fixing plate 4 is fixedly installed on the top of the mounting plate 1, and a fixing bracket 41 is fixedly installed on the side of the fixing plate 4 away from the placement bracket 3.

[0026] A handle 42 is hinged inside the fixed frame 41, and a telescopic rod 43 is slidably installed inside the handle 42. A snap-fit ​​plate 5 is hinged to the end of the telescopic rod 43 away from the handle 42.

[0027] A connecting plate 6 is fixedly installed on the top of the mounting plate 1. A snap-fit ​​groove 61 is fixedly installed on the side of the connecting plate 6 near the snap-fit ​​plate 5. The snap-fit ​​plate 5 snaps into the inside of the snap-fit ​​groove 61.

[0028] Specifically, the fixing plate 4 and the connecting plate 6 are fixedly installed on the top of the mounting plate 1, so that the head end of the handle 42 can be hinged to the inside of the fixing frame 41 installed on the outer wall of the fixing plate 4. The telescopic rod 43 is slidably inserted into the inside of the handle 42 and can be stretched. The tail end of the telescopic rod 43 is hinged to a snap-fit ​​plate 5. The snap-fit ​​plate 5 can rotate a certain angle at the tail end of the telescopic rod 43, so that the snap-fit ​​plate 5 can be inserted into the inside of the snap-fit ​​groove 61 opened on the outer wall of the connecting plate 6, so that the telescopic rod 43 and the handle 42 are in a retracted state between the connecting plate 6 and the fixing plate 4, so that the personnel can hold the handle 42 and push the mounting plate 1, so that the roller 2 installed on the outer wall of the support frame 101 moves along the outer surface of the concrete. When the crack is higher than the highest point of a person's raised arm, pulling the handle 42 upwards can pull the snap plate 5 out of the snap groove 61. Pulling the telescopic rod 43 can increase the overall length of the handle 42 and the telescopic rod 43, so that the person can hold the telescopic rod 43 and press the roller 2 against the outer surface of the concrete to scan and detect the crack at a high position.

[0029] It should be noted that the telescopic rod 43 can be locked in a limited position after being pulled inside the grip rod 42, so as not to cause retraction. In addition, multiple telescopic rods 43 can be installed inside the grip rod 42 to connect. By stretching multiple telescopic rods 43, the overall length of the grip rod 42 and the telescopic rod 43 can be greatly increased.

[0030] Working principle: When inspecting cracks on the outer surface of concrete, the operator can hold the handle 42 and push the mounting plate 1, causing the rollers 2 mounted on the outer wall of the support frame 101 to fit against the outer surface of the concrete. At this time, the connecting sleeve 103 compresses the elastic element 106 inside the insertion interface 102, causing the connecting sleeve 103 to press against the outer surface of the concrete. This allows the detection device body 105 to engage with the outside of the crack. Pushing the mounting plate 1 then moves the rollers 2, allowing the detection device body 105 to move along the crack, achieving the effect of using the detection device body 105 to perform laser scanning imaging of the crack. The detection device body 105, with the help of the elastic element 106 and the connecting sleeve 103, can fully fit against the outer surface of the concrete, avoiding inaccurate alignment and scanning in areas with depressions on the outer surface of the concrete. Furthermore, the rollers 2 make it easier to move the detection device body 105. When the crack is higher than the highest point of a person's raised arm, pulling the handle 42 upwards can pull the snap plate 5 out of the snap groove 61. Then, pulling the telescopic rod 43 out of the handle 42 increases the overall length of the handle 42 and the telescopic rod 43. The person can then hold the telescopic rod 43 and press the roller 2 against the outer surface of the concrete to scan and detect the crack at a high position.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A laser scanning imager for cracks on concrete surfaces, comprising a mounting plate (1), characterized in that: A support frame (101) is fixedly installed at the bottom of the mounting plate (1). An insertion interface (102) is provided at the bottom of the mounting plate (1). A connecting sleeve (103) is installed inside the support frame (101). A connecting ring (104) is fixedly installed at the bottom of the inner wall of the connecting sleeve (103). A detection device body (105) is fixedly sleeved inside the connecting ring (104). An elastic element (106) is installed at the top of the connecting ring (104). A sliding ring (107) is installed through the top of the connecting sleeve (103) into the inside of the insertion interface (102). The top of the elastic element (106) is installed at the top of the inner wall of the insertion interface (102).

2. The laser scanning imager for concrete surface cracks according to claim 1, characterized in that: The outer wall of the support frame (101) is rotatably mounted with rollers (2), and four rollers (2) are arranged in a rectangular array on the outer wall of the support frame (101).

3. The laser scanning imager for concrete surface cracks according to claim 2, characterized in that: The mounting plate (1) is fixedly mounted with a placement rack (3), and the outer wall of the placement rack (3) is provided with a slot (31).

4. The laser scanning imager for concrete surface cracks according to claim 3, characterized in that: The display (32) is installed inside the placement rack (3), and the outer wall of the display (32) has holes (33).

5. The laser scanning imager for concrete surface cracks according to claim 1, characterized in that: A fixing plate (4) is fixedly installed on the top of the mounting plate (1), and a fixing bracket (41) is fixedly installed on the side of the fixing plate (4) away from the placement bracket (3).

6. The laser scanning imager for concrete surface cracks according to claim 5, characterized in that: The fixing frame (41) has a handle (42) hinged inside, and a telescopic rod (43) is slidably installed inside the handle (42).

7. The laser scanning imager for concrete surface cracks according to claim 6, characterized in that: The telescopic rod (43) has a snap-fit ​​plate (5) hinged to the end away from the handle (42).

8. The laser scanning imager for concrete surface cracks according to claim 7, characterized in that: A connecting plate (6) is fixedly installed on the top of the mounting plate (1). A snap-fit ​​groove (61) is fixedly installed on the side of the connecting plate (6) near the snap-fit ​​plate (5). The snap-fit ​​plate (5) is snapped into the inside of the snap-fit ​​groove (61).

Images