Concrete crack depth detection device

Abstract

The utility model belongs to the technical field of concrete crack depth detection, and particularly relates to a concrete crack depth detection device which comprises an ultrasonic crack detector, two transducers and a transverse pipe, fixing frames are sleeved on two sides outside the transverse pipe, a disc is fixed at the plane end of each fixing frame, and an adhesive layer is adhered to one end face, far away from the fixing frames, of each disc; clamping assemblies used for clamping and fixing the transducer are installed at the two ends of the transverse pipe in a sliding mode, and a bidirectional driving assembly used for driving the two clamping assemblies to move is installed in the transverse pipe. According to the concrete crack depth detection device, the transducer is clamped on the clamping assembly, and the transverse pipe is adhered to the wall surface through the adhesive layer, so that the transducer is fixed on the wall surface without being supported by a foreign object, and the transducer does not need to be manually held and positioned, the complexity of operation is reduced, and the working efficiency is improved. And the distance between the transducer and the crack is adjusted by the bidirectional driving assembly, so that the adjustment precision of the transducer is improved, and the detection effect is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete crack depth detection technology, and in particular to a concrete crack depth detection device. Background Technology

[0002] In the engineering field, concrete, as one of the most commonly used building materials, plays a crucial role in the long-term stability and service life of buildings due to the integrity and safety of its structure. However, due to various factors, cracks often appear in concrete structures. These cracks not only affect the aesthetics of buildings but, more importantly, may weaken the load-bearing capacity of the structure, thus causing safety hazards. To accurately assess the impact of concrete cracks on structural safety, precise measurements of the crack width, length, and depth are necessary. Traditional methods for crack depth detection include ultrasonic testing and radar detection.

[0003] When inspecting vertical walls, the lack of an adaptive fixing structure means that operators need to use external tools or manually press the device to temporarily fix it to the wall. This not only increases the complexity of the operation, but may also cause the device to shift due to uneven force during the inspection process, affecting the accuracy of data acquisition. At the same time, without stable support, adjusting and positioning the transmitter and receiver becomes extremely difficult, often resulting in low inspection efficiency and the inspection results being easily affected by human factors. Utility Model Content

[0004] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0005] Specifically, the technical problem to be solved by this utility model is to provide a concrete crack depth detection device to solve the current technical problem that the lack of an adaptive fixing structure increases the complexity of operation when detecting vertical walls.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A concrete crack depth detection device includes an ultrasonic crack detector, two transducers and a horizontal tube. The horizontal tube is fitted with a fixing frame on both sides. A disc is fixed to the flat end of the fixing frame. An adhesive layer is bonded to the end face of the disc away from the fixing frame.

[0008] Both ends of the horizontal tube are slidably equipped with clamping components for clamping and fixing the transducer. Inside the horizontal tube is a bidirectional drive component for driving the movement of the two clamping components. Both sides of the horizontal tube are provided with limiting slides for the moving ends of the bidirectional drive components to pass through. The moving ends of the bidirectional drive components pass through the limiting slides and are fixedly connected to the clamping components.

[0009] As an improved technical solution, a leveling rod is sleeved on the center of the outer wall of the horizontal tube, and the end of the leveling rod away from the horizontal tube is in the shape of a straight bar, and the end of the leveling rod away from the horizontal tube protrudes outward from the adhesive layer.

[0010] As an improved technical solution, the clamping assembly includes a sliding sleeve that slides on a horizontal tube. A fixing strip is welded to the protruding end of the sliding sleeve away from the horizontal tube. A translation plate is provided at the end of the fixing strip away from the sliding sleeve. A fixing seat is welded to the side of the translation plate away from the sliding sleeve. A movable seat is detachably installed on one side of the fixing seat. An arc-shaped clamping groove is formed on the opposite surface of the fixing seat and the movable seat.

[0011] As an improved technical solution, the inner wall of the arc-shaped clamping groove is bonded with a rubber layer, and a retaining ring is sleeved on the outer wall of the transducer at the end away from the movable seat.

[0012] As an improved technical solution, one-way lead screws are fixed at both ends of the movable seat near the fixed seat. The fixed seat has fixed holes at both ends of the arc-shaped clamping groove for the one-way lead screws to pass through. A hexagonal nut is threaded onto the threaded end of the one-way lead screw on the side of the fixed seat away from the movable seat.

[0013] As an improved technical solution, the fixing bar is threaded with a one-way screw through a threaded hole at one end, and the end of the one-way screw near the translation plate is rotatably mounted on the translation plate through a bearing. The fixing bar is slidably mounted with a positioning rod through a sliding hole at the other end, and the end of the positioning rod near the translation plate is fixed to the translation plate.

[0014] As an improved technical solution, the bidirectional drive assembly includes a bidirectional lead screw rotatably installed inside the horizontal tube, and a drive rod rotatably located near the middle of the horizontal tube via a bearing. A bevel gear transmission component is installed between the end of the drive rod near the bidirectional lead screw and the bidirectional lead screw. Both sides of the outer surface of the bidirectional lead screw are threaded with transmission discs. Both sides of the peripheral surface of the transmission discs are fixed with linkage bars, and the linkage bars are fixed to the inner wall surface of the sliding sleeve after passing through the limiting slide.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are:

[0016] 1. This utility model clamps the transducer between a fixed base and a movable base. The transducer is detachably mounted on the clamping assembly, facilitating quick assembly and use, and also making it easy to replace and maintain damaged transducers later. Furthermore, the rubber layer increases the coefficient of friction between the transducer and the wall during clamping, improving the clamping firmness. It also provides protection during transducer clamping. The distance between the transducer and the wall is adjustable, preventing the transducer's detection end from rubbing against the wall when adjusting the transducer's detection points horizontally, thus protecting the transducer and extending its service life.

[0017] 2. In this utility model, the drive rod rotates, and under the transmission action of the bevel gear transmission component, the bidirectional lead screw rotates with the drive rod. Under the threaded transmission action of the drive rod and the threaded hole on the transmission disk, the transmission disks on both sides can be started to move towards the center or both sides at the same time. Then, the clamping component is moved through the linkage bar, which realizes the fine adjustment of the distance between the transducers on both sides and the crack. It is convenient to adjust the distance between the transducers and the crack, and multiple adjustments and measurements can be performed by adjusting the distance between the transducers and the crack.

[0018] 3. In this utility model, the transducer is clamped on the clamping assembly, and the horizontal tube is adhered to the wall by the adhesive layer, thus fixing the transducer to the wall. No external support is required, and no manual hand-held positioning of the transducer is needed, reducing the complexity of operation. At the same time, the bidirectional drive assembly adjusts the distance between the transducer and the crack, which not only facilitates the positioning and adjustment of the transducers on both sides, but also allows for simultaneous adjustment of the positions of the transducers on both sides, improving the accuracy of transducer adjustment and effectively improving the detection effect. Furthermore, during the movement of the transducer, it does not come into contact with or rub against the wall, thus providing a protective effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of a concrete crack depth detection device according to the present invention.

[0021] Figure 2 This is a schematic diagram of the clamping assembly of a concrete crack depth detection device according to the present invention.

[0022] Figure 3This is a schematic diagram of the bidirectional drive assembly of a concrete crack depth detection device according to the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Ultrasonic crack detector; 2. Transducer; 3. Horizontal tube; 31. Limiting slide; 4. Alignment rod; 5. Fixing frame; 6. Clamping assembly; 61. Sliding sleeve; 62. One-way lead screw; 63. Fixing strip; 64. Translation plate; 65. Hexagonal nut; 66. Retaining ring; 67. Fixing seat; 68. Rubber layer; 69. Arc-shaped clamping groove; 610. Positioning rod; 611. Movable seat; 612. One-way lead screw; 7. Two-way drive assembly; 71. Two-way lead screw; 72. Bevel gear transmission component; 73. Drive rod; 74. Transmission disc; 75. Linkage bar; 8. Disc; 9. Adhesive layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0028] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0029] like Figures 1 to 3As shown in the figure, this embodiment provides a concrete crack depth detection device. This concrete crack depth detection device includes an ultrasonic crack detector 1, two transducers 2 and a horizontal tube 3. The two transducers 2 are a receiving transducer and a transmitting transducer, respectively, and are connected to the ultrasonic crack detector 1 through wires. Fixing frames 5 are fitted on both sides of the outside of the horizontal tube 3. A disc 8 is fixed to the flat end of the fixing frame 5. An adhesive layer 9 is bonded to the end face of the disc 8 away from the fixing frame 5. The adhesive layer 9 is double-sided adhesive. Each time it is used, the residual adhesive layer 9 on the disc 8 is removed and a brand new adhesive layer 9 is bonded to the disc 8 to ensure the adhesion of the adhesive layer 9. A fixing point is selected at the crack in the wall and cleaned and dried to ensure the cleanliness and dryness of the fixing point. Then the adhesive layer 9 is bonded to the fixing point on the wall, thereby fixing the horizontal tube 3 to the wall.

[0030] Both ends of the horizontal tube 3 are slidably equipped with clamping components 6 for clamping and fixing the transducer 2. Inside the horizontal tube 3, there is a bidirectional drive component 7 for driving the two clamping components 6 to move. The drive end of the bidirectional drive component 7 is located outside the horizontal tube 3. Both sides of the horizontal tube 3 are provided with limiting slides 31 for the moving end of the bidirectional drive component 7 to pass through. The moving end of the bidirectional drive component 7 passes through the limiting slides 31 and is fixedly connected to the clamping component 6.

[0031] The transducer 2 is clamped onto the clamping assembly 6, and the horizontal tube 3 is adhered to the wall by the adhesive layer 9, thus fixing the transducer 2 to the wall. No external support is required, and no manual hand positioning of the transducer 2 is needed, reducing the complexity of the operation. At the same time, the bidirectional drive assembly 7 adjusts the distance between the transducer 2 and the crack, which not only facilitates the positioning and adjustment of the transducers 2 on both sides, but also allows for the simultaneous adjustment of the positions of the transducers 2 on both sides, improving the accuracy of the adjustment of the transducer 2 and effectively improving the detection effect. Furthermore, during the movement of the transducer 2, the transducer 2 does not come into contact with or rub against the wall, thus providing a protective effect.

[0032] like Figure 1 As shown, in this embodiment, a locating rod 4 is sleeved on the center of the outer wall of the horizontal tube 3. The end of the locating rod 4 away from the horizontal tube 3 is in the shape of a straight strip, and the end of the locating rod 4 away from the horizontal tube 3 protrudes outward from the adhesive layer 9. When the two transducers 2 need to span across the two ends of the crack, the locating rod 4 is inserted into the crack when the fixing point of the adhesive layer 9 is found, and the locating rod 4 is adjusted to the middle of the crack. At this time, the position of the disc 8 facing the wall is the adhesive point of the adhesive layer 9, which makes it easier to fix the horizontal tube 3 more accurately at the crack and improves the accuracy of crack detection.

[0033] like Figures 1 to 2As shown in the figure, in this embodiment, the clamping assembly 6 includes a sliding sleeve 61 that slides on the horizontal tube 3. A fixing strip 63 is welded to the protruding end of the sliding sleeve 61 away from the horizontal tube 3. A translation plate 64 is provided at the end of the fixing strip 63 away from the sliding sleeve 61. A fixing seat 67 is welded to the side of the translation plate 64 away from the sliding sleeve 61. A movable seat 611 is detachably installed on one side of the fixing seat 67. An arc-shaped clamping groove 69 is formed on the opposite surface of the fixing seat 67 and the movable seat 611. The two arc-shaped clamping grooves 69 are... A clamping hole is formed between the fixed base 67 and the movable base 611 to hold the transducer 2. The transducer 2 is placed inside the arc-shaped clamping groove 69 on the fixed base 67. Then, the one-way lead screw 612 is passed through the fixed hole and the hexagonal nut 65 is threaded onto the one-way lead screw 612. Finally, the transducer 2 is clamped between the fixed base 67 and the movable base 611. The transducer 2 is detachably installed on the clamping assembly 6, which facilitates quick assembly and use, and also facilitates the replacement and maintenance of the damaged transducer 2 in the future.

[0034] like Figure 2 As shown, in this embodiment, a rubber layer 68 is bonded to the inner wall of the arc-shaped clamping groove 69. When clamping the transducer 2, the rubber layer 68 can increase the friction coefficient between the transducer 2 and the transducer 2, thereby improving the firmness of clamping the transducer 2. At the same time, it plays a protective role when clamping the transducer 2. A retaining ring 66 is sleeved on the outer wall of the transducer 2 at the end away from the movable seat 611. When clamping the transducer 2, the transducer 2 is moved towards the sliding sleeve 61, so that the retaining ring 66 abuts against the side of the fixed seat 67, ensuring that the transducer 2 is clamped at the same position point each time it is clamped and fixed, and when both sides of the transducer 2 are fixed.

[0035] like Figure 2 As shown, in this embodiment, one-way screw rods 612 are fixed at both ends of the movable seat 611 near the fixed seat 67. The fixed seat 67 has fixed holes at both ends of the arc-shaped clamping groove 69 for the one-way screw rods 612 to pass through. A hexagonal nut 65 is threaded on the threaded end of the one-way screw rod 612 on the side of the fixed seat 67 away from the movable seat 611.

[0036] like Figure 2As shown, in this embodiment, a one-way screw 62 is threadedly installed on the fixing bar 63 through a threaded hole at one end. The end of the one-way screw 62 near the translation plate 64 is rotatably mounted on the translation plate 64 via a bearing. A knob is sleeved on the end of the one-way screw 62 away from the translation plate 64. A positioning rod 610 is slidably installed on the fixing bar 63 through a sliding hole at the other end. The end of the positioning rod 610 near the translation plate 64 is fixed to the translation plate 64. After the transducer 2 is adjusted to the detection point, the one-way screw 62 is driven to rotate. The rotation of the screw thread on the one-way screw 62 and the fixed bar 63 is modified to drive the translation plate 64 towards the wall, so that the transducer 2 is in contact with the wall. After the test is completed, the one-way screw 62 is rotated in the reverse direction to release the contact between the transducer 2 and the wall. The distance between the transducer 2 and the wall is adjustable, which avoids the detection end of the transducer 2 rubbing against the wall when the detection point of the transducer 2 is adjusted horizontally, thus protecting the transducer 2 and extending its service life.

[0037] like Figure 1 and Figure 3 As shown in the figure, in this embodiment, the bidirectional drive assembly 7 includes a bidirectional lead screw 71 rotatably mounted inside the horizontal tube 3, and a drive rod 73 rotatably located near the middle of the horizontal tube 3 via bearings. A knob is installed at one end of the drive rod 73 outside the horizontal tube 3. A bevel gear transmission component 72 is installed between the end of the drive rod 73 near the bidirectional lead screw 71 and the bidirectional lead screw 71. The bevel gear transmission component 72 consists of two meshing bevel gears. A transmission disk 74 is threadedly mounted on both sides of the outer surface of the bidirectional lead screw 71, and a threaded hole for threaded connection with the bidirectional lead screw 71 is opened at the center of one end of the transmission disk 74. Linkage is fixed on both sides of the peripheral surface of the transmission disk 74. Linkage bar 75 passes through the limiting slide 31 and is fixed on the inner wall of the sliding sleeve 61, driving the drive rod 73 to rotate. Under the transmission action of the bevel gear transmission component 72, the bidirectional lead screw 71 rotates with the drive rod 73. Under the threaded transmission action of the drive rod 73 and the threaded hole on the transmission disk 74, the transmission disks 74 on both sides can be started to move towards the center or both sides at the same time. Then, the clamping component 6 is moved through the linkage bar 75, which realizes the fine adjustment of the distance between the transducers 2 on both sides and the crack. It is convenient to adjust the distance between the transducers 2 and the crack. It can also be used to make multiple adjustments and measurements through the distance between the transducers 2 and the crack.

[0038] When in use, when the two transducers 2 need to span across the two ends of the crack, when the fixing point of the adhesive layer 9 is found, the aiming rod 4 is inserted into the crack and the aiming rod 4 is adjusted to the middle of the crack. At this time, the position of the disc 8 facing the wall is the adhesive layer 9.

[0039] The process of fixing transducer 2 to clamping assembly 6 is as follows:

[0040] The transducer 2 is placed inside the arc-shaped clamping groove 69 on the fixed seat 67. Then, the one-way lead screw 612 is passed through the fixed hole and the hexagonal nut 65 is threaded onto the one-way lead screw 612. Finally, the transducer 2 is clamped between the fixed seat 67 and the movable seat 611.

[0041] The drive rod 73 is rotated, and under the transmission action of the bevel gear transmission component 72, the bidirectional lead screw 71 rotates with the drive rod 73. Under the thread transmission action of the drive rod 73 and the threaded hole on the transmission disk 74, the transmission disks 74 on both sides can be started to move towards the center or both sides, and then the clamping component 6 is moved through the linkage bar 75, which means that the distance between the transducers 2 on both sides and the crack can be finely adjusted.

[0042] After the transducer 2 is adjusted to the detection point, the one-way screw 62 is driven to rotate. The thread transmission between the one-way screw 62 and the threaded hole on the fixing bar 63 is modified. The one-way screw 62 pushes the translation plate 64 to move towards the wall, so that the transducer 2 is in contact with the wall. After the detection is completed, the one-way screw 62 is driven to rotate in the opposite direction to release the contact between the transducer 2 and the wall.

[0043] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A device for detecting the depth of concrete cracks, characterized in that: It includes an ultrasonic crack detector (1), two transducers (2) and a horizontal tube (3). The horizontal tube (3) is fitted with a fixing frame (5) on both sides. A disc (8) is fixed to the flat end of the fixing frame (5). An adhesive layer (9) is bonded to the end face of the disc (8) away from the fixing frame (5). Both ends of the horizontal tube (3) are slidably fitted with clamping components (6) for clamping and fixing the transducer (2). Inside the horizontal tube (3) is a bidirectional drive component (7) for driving the two clamping components (6) to move. Both sides of the horizontal tube (3) are provided with limiting slides (31) for the moving end of the bidirectional drive component (7) to pass through. The moving end of the bidirectional drive component (7) passes through the limiting slides (31) and is fixedly connected to the clamping component (6).

2. The concrete crack depth detection device according to claim 1, characterized in that: A leveling rod (4) is sleeved on the center of the outer wall of the horizontal tube (3), and the end of the leveling rod (4) away from the horizontal tube (3) is in the shape of a straight bar. The end of the leveling rod (4) away from the horizontal tube (3) protrudes outward from the adhesive layer (9).

3. The concrete crack depth detection device according to claim 2, characterized in that: The clamping assembly (6) includes a sliding sleeve (61) that slides on the horizontal tube (3). A fixing strip (63) is welded to the protruding end of the sliding sleeve (61) away from the horizontal tube (3). A translation plate (64) is provided at one end of the fixing strip (63) away from the sliding sleeve (61). A fixing seat (67) is welded to the side of the translation plate (64) away from the sliding sleeve (61). A movable seat (611) is detachably installed on one side of the fixing seat (67). An arc-shaped clamping groove (69) is opened on the opposite surface of the fixing seat (67) and the movable seat (611).

4. The concrete crack depth detection device according to claim 3, characterized in that: The inner wall of the arc-shaped clamping groove (69) is bonded with a rubber layer (68), and a retaining ring (66) is sleeved on the outer wall of the transducer (2) at the end away from the movable seat (611).

5. The concrete crack depth detection device according to claim 4, characterized in that: One-way screws (612) are fixed at both ends of the movable seat (611) near the fixed seat (67). The fixed seat (67) has fixed holes at both ends of the arc-shaped clamping groove (69) for the one-way screws (612) to pass through. A hexagonal nut (65) is threaded on the threaded end of the one-way screws (612) on the side of the fixed seat (67) away from the movable seat (611).

6. The concrete crack depth detection device according to claim 5, characterized in that: The fixing bar (63) is threaded with a one-way screw (62) through a threaded hole at one end, and the end of the one-way screw (62) near the translation plate (64) is rotatably mounted on the translation plate (64) through a bearing. The fixing bar (63) is slidably mounted with a positioning rod (610) through a sliding hole at the other end, and the end of the positioning rod (610) near the translation plate (64) is fixed on the translation plate (64).

7. The concrete crack depth detection device according to claim 6, characterized in that: The bidirectional drive assembly (7) includes a bidirectional lead screw (71) rotatably installed inside the horizontal tube (3) and a drive rod (73) rotatably located near the middle of the horizontal tube (3) via a bearing. A bevel gear transmission component (72) is installed between the end of the drive rod (73) near the bidirectional lead screw (71) and the bidirectional lead screw (71). Both sides of the outer side of the bidirectional lead screw (71) are threaded with a transmission disc (74). Both sides of the peripheral surface of the transmission disc (74) are fixed with a linkage bar (75), and the linkage bar (75) passes through the limiting slide (31) and is fixed on the inner wall of the sliding sleeve (61).

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