Efficient crack detection device for water conservancy detection

Abstract

The utility model relates to crack detection device technical field discloses a kind of high-efficiency water conservancy detection crack detection devices, including box, the inside bottom side of box is equipped with multiple second slide rails, two sliding plates are jointly connected on multiple second slide rails, two limiting sliding grooves are provided in the side of box, each sliding plate is slidably connected in the same side limiting sliding groove, the upper side of two sliding plates is fixedly connected with clamping rod, the inside of box is fixedly connected with first slide rail in the side of the both ends of second slide rail, two first slide rails are jointly connected with push plate sliding, the utility model is cooperated by limiting clamping groove, clamping rod and first slide rail, second slide rail, two sliding plates and ultrasonic detection probe are mutually close or far away by the way of inner clamping, realize equidistant adjustment, with the advantages that system error is small, precision is high.

Description

Technical Field

[0001] This utility model relates to the technical field of crack detection devices, and in particular to a high-efficiency crack detection device for hydraulic testing. Background Technology

[0002] During the dry season, as the water level drops, the sloping sides of the dam's concrete surface are exposed. At this time, crack detection devices can be used to detect cracks on the dam, allowing for timely assessment of the dam's condition. When using the ultrasonic head of a comprehensive crack detection instrument to perform cross-crack detection on the concrete joints of the dam, two ultrasonic probes need to be placed at equal intervals on both sides of the crack. However, current crack detection devices for dams generally have a large error in setting the distance between the ultrasonic probes.

[0003] For example, Chinese utility model patent CN221650284U discloses a crack detection device for water conservancy testing. Although this solution can conveniently and stably attach the transducer to the water conservancy dam body through the setting of H-shaped frame, pressing mechanism, moving plate, support rod and anti-slip seat to achieve accurate crack detection, the distance between the two ultrasonic probes is indirectly determined by manually moving the moving plate and pointer and visually coordinating with the scale plate on the frame. This involves a lot of subjective human factors, which may cause the systematic error of the measurement to increase and lead to inaccurate crack detection data.

[0004] In view of this, a high-efficiency crack detection device for hydraulic testing is proposed to solve the above problems. Utility Model Content

[0005] To address the technical problem of large measurement errors in crack detection devices, this utility model provides a high-efficiency crack detection device for hydraulic engineering testing.

[0006] This utility model is achieved using the following technical solution: A high-efficiency crack detection device for hydraulic testing, comprising a housing, wherein multiple secondary slide rails are installed on the bottom side of the housing, and two slide plates are slidably connected to the multiple secondary slide rails. Two limiting slide grooves are opened on one side of the housing, and each slide plate is slidably connected to the inner side of the limiting slide groove on the same side. A locking rod is fixedly connected to the upper side of each of the two slide plates. A primary slide rail is fixedly connected to one side of the housing at both ends of the secondary slide rails, and a push plate is slidably connected to the two primary slide rails. Two mutually symmetrically distributed limiting slots are opened on the push plate, and each locking rod is slidably connected to the inner side of the limiting slot on the same side. A multi-angle detection mechanism is provided at one end of the slide plate, and a probe lifting mechanism is provided on one side of the multi-angle detection mechanism. An ultrasonic detection probe is installed on the probe lifting mechanism. An equidistant setting mechanism is provided on the side of the housing away from the ultrasonic detection probe to make the two ultrasonic detection probes move closer or further apart.

[0007] As a further improvement to the above solution, the multi-angle detection mechanism includes a positioning cover that is fixedly connected to one end of each of the two slide plates, and a limiting ball is movably connected to the inner side of each positioning cover.

[0008] As a further improvement to the above solution, a positioning bolt is threaded onto the positioning cover, and the lower end of the positioning bolt abuts against the outer side of the limiting ball.

[0009] As a further improvement to the above solution, the probe lifting mechanism includes a sleeve fixedly connected to one side of each of the two limiting balls. A threaded rod is rotatably connected to the upper side of each sleeve. The lower end of each threaded rod is threadedly sleeved to the upper side of the ultrasonic testing probe. A handle is fixedly connected to the upper end of each threaded rod. Multiple clamping plates are fixedly connected to the side of the ultrasonic testing probe. Each clamping plate is slidably connected to the inner side of the sleeve.

[0010] As a further improvement to the above solution, the equal spacing setting mechanism includes a lead screw rotatably connected to both sides of the inside of the box. The lead screw is threadedly connected to the lower side of the push plate. The end of the lead screw away from the ultrasonic detection probe extends outward from the box and is fixedly connected to a handwheel. A scale plate is fixedly connected to the side of the box closest to the ultrasonic detection probe. The scale plate is configured to cooperate with the two slide plates.

[0011] As a further improvement to the above solution, an LED display panel is installed on the upper side of the box, and the LED display panel is electrically connected to the two ultrasonic detection probes.

[0012] As a further improvement to the above solution, multiple rubber friction pads are installed on the lower side of the box.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a limiting slot, a locking rod, and a first and second slide rail to work together to push the two slide plates closer to or further away from the ultrasonic testing probe through an internal locking mechanism, thereby achieving equal spacing adjustment. It has the advantages of small setting system error and high precision.

[0015] 2. This utility model uses a probe lifting mechanism and a multi-angle detection mechanism to work together. When irregularities appear on the slope of a reservoir dam, the height and angle of the ultrasonic detection probe can be adjusted to make the crack detection device suitable for various scenarios, thus having high practicality. Attached Figure Description

[0016] Figure 1A schematic diagram of the overall structure of a high-efficiency crack detection device for hydraulic testing provided by this utility model;

[0017] Figure 2 for Figure 1 Top view;

[0018] Figure 3 for Figure 1 Internal structure diagram;

[0019] Figure 4 for Figure 3 A schematic diagram of the explosion structure.

[0020] Explanation of key symbols:

[0021] 1. Box body; 2. Handwheel; 3. LED display panel; 4. Scale plate; 5. Slide plate; 6. Sleeve; 7. Positioning cover; 8. Handle; 9. Positioning bolt; 10. Threaded rod; 11. Ultrasonic testing probe; 12. Limit ball; 13. Limiting groove; 14. Push plate; 15. No. 1 slide rail; 16. Rubber friction pad; 17. Limiting slot; 18. Lead screw; 19. Locking rod; 20. No. 2 slide rail; 21. Locking plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] Example:

[0024] Please combine Figures 1-3 This embodiment of a high-efficiency crack detection device for hydraulic testing includes a housing 1. In this embodiment, two second-order slide rails 20 are installed on the bottom side of the inside of the housing 1.

[0025] Please combine Figure 4 As shown, two slide plates 5 are slidably connected to two slide rails 20. Two limiting grooves 13 are provided on one side of the box body 1. Each slide plate 5 is slidably connected to the inner side of the limiting groove 13 on the same side. A locking rod 19 is fixedly connected to the upper side of each slide plate 5. A slide rail 15 is fixedly connected to one side of each end of the slide rail 20 inside the box body 1. A push plate 14 is slidably connected to the two slide rails 15. Two mutually symmetrically distributed limiting grooves 17 are provided on the push plate 14. It should be noted that in this embodiment, the limiting grooves 17 are provided as follows: Figure 3 As shown, this is a diagonal layout; other embodiments may be adjusted accordingly.

[0026] Please combine Figure 2As shown, each lever 19 is slidably connected to the inner side of the limiting slot 17 on the same side. One end of the slide plate 5 is provided with a multi-angle detection mechanism. One side of the multi-angle detection mechanism is provided with a probe lifting mechanism. An ultrasonic detection probe 11 is installed on the probe lifting mechanism. The core structure inside the ultrasonic detection probe 11 is an ultrasonic transducer, which can send the detected data to the LED display panel 3 for display. At the same time, the CPU logic calculation unit built into the LED display panel 3 can calculate the width and depth data of the crack based on the detected data and perform relevant processing based on the detection data.

[0027] I. Crack Classification:

[0028] Grade A: Cracks with a width ≤ 0.2 mm and in a static state can be left untreated but require observation.

[0029] Grade B: Cracks with a width of 0.2mm or less and a crack width of ≤0.3mm, or those showing signs of development, require sealing treatment.

[0030] Grade C: Cracks with a width of 0.3mm or less and a crack width of ≤0.5mm, or locally dense cracks, require structural reinforcement.

[0031] Grade d: Crack width > 0.5 mm or seriously affects structural safety, requiring immediate structural reinforcement measures.

[0032] I. Legal basis for crack assessment:

[0033] The Work Safety Law of the People's Republic of China (2021 Revised Edition).

[0034] Standard for Safety Inspection and Evaluation of Small Hydropower Stations GB / T50876.

[0035] Other relevant standards and specifications include GB50201 "Flood Control Standard" and GB50487 "Code for Geological Investigation of Water Conservancy and Hydropower Projects".

[0036] II. Processing Results:

[0037] Level A: No action will be taken at this time, but continuous monitoring and detection are required.

[0038] Grade B: Requires sealing.

[0039] Grade C: Structural reinforcement is required.

[0040] Grade D: Structural reinforcement measures are required immediately.

[0041] Please combine Figure 2 As shown, the side of the housing 1 away from the ultrasonic probe 11 is provided with an equidistant setting mechanism that allows the two ultrasonic probes 11 to move closer or further apart.

[0042] Please combine Figure 4As shown, the multi-angle detection mechanism includes positioning covers 7 that are fixedly connected to one end of the two slide plates 5 respectively. The inner side of each positioning cover 7 is movably connected to a limiting ball 12. Through the limiting ball 12, not only can the angle be adjusted in the up, down, left and right directions, but also the three-dimensional angle can be adjusted in space.

[0043] Please combine Figure 4 As shown, a positioning bolt 9 is threaded onto the positioning cover 7. The lower end of the positioning bolt 9 abuts against the outer side of the limiting ball 12. The positioning bolt 9 can fix the limiting ball 12 after the angle is adjusted to prevent slippage.

[0044] Please combine Figure 4 As shown, the probe lifting mechanism includes sleeves 6 that are fixedly connected to one side of two limiting balls 12 respectively. Each sleeve 6 has a threaded rod 10 rotatably connected to its upper side. The lower end of each threaded rod 10 is threadedly sleeved to the upper side of the ultrasonic testing probe 11. Each threaded rod 10 has a handle 8 fixedly connected to its upper end. By rotating the handle 8, the ultrasonic testing probe 11 can be moved up and down.

[0045] Please combine Figure 4 As shown, in this embodiment, two clamping plates 21 are fixedly connected to the side of the ultrasonic detection probe 11, and each clamping plate 21 is slidably connected to the inner side of the sleeve 6.

[0046] Please combine Figure 4 The equal spacing setting mechanism shown includes a lead screw 18 rotatably connected to the two sides inside the box 1. The lead screw 18 is threadedly connected to the lower side of the push plate 14. The end of the lead screw 18 away from the ultrasonic detection probe 11 extends outward from the box 1 and is fixedly connected to a handwheel 2. A scale plate 4 is fixedly connected to the side of the box 1 closest to the ultrasonic detection probe 11. The scale plate 4 is set in cooperation with two sliding plates 5.

[0047] Please combine Figure 1 As shown, an LED display panel 3 is installed on the upper side of the box 1, and the LED display panel 3 is electrically connected to two ultrasonic detection probes 11.

[0048] Please combine Figure 2 As shown, multiple rubber friction pads 16 are installed on the lower side of the box 1. The dam slope is an inclined structure. The rubber friction pads 16 can help fix the device and prevent displacement.

[0049] The implementation principle of a high-efficiency crack detection device for water conservancy testing in this embodiment is as follows: First, align the crack to be detected on the dam with the center line on the scale plate 4 of the device. Then, adjust the angle of the limiting ball 12 by using the positioning bolt 9. By rotating the handle 8, under the limiting action of the clamping plate 21, the ultrasonic detection probe 11 can be raised or lowered in the sleeve 6. Then, rotate the handwheel 2, and push the push plate 14 along the first slide rail 15 back and forth through the screw 18. When the push plate 14 slides, the limiting groove 17 drives the clamping rod 19 to move, thereby achieving the function of the two sliding plates 15 moving closer or further away from each other, indirectly driving the ultrasonic detection probe 11 at one end of the sliding plate 15 to move closer or further away from each other, ensuring that when detecting cross-crack cracks, the distance between the two ultrasonic detection probes 11 and the crack is equal.

[0050] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A high-efficiency crack detection device for hydraulic testing, comprising a housing (1), characterized in that, Multiple second-order slide rails (20) are installed on the bottom side of the inner side of the box (1). Two slide plates (5) are slidably connected on the multiple second-order slide rails (20). Two limiting slide grooves (13) are opened on one side of the box (1). Each slide plate (5) is slidably connected to the inner side of the limiting slide groove (13) on the same side. A locking rod (19) is fixedly connected to the upper side of each of the two slide plates (5). A first-order slide rail (15) is fixedly connected to one side of the box (1) at both ends of the second-order slide rails (20). The two first-order slide rails (15) slide together. A push plate (14) is connected, and two mutually symmetrically distributed limiting slots (17) are opened on the push plate (14). Each of the locking rods (19) is slidably connected to the inner side of the limiting slot (17) on the same side. A multi-angle detection mechanism is provided at one end of the sliding plate (5). A probe lifting mechanism is provided on one side of the multi-angle detection mechanism. An ultrasonic detection probe (11) is installed on the probe lifting mechanism. An equidistant setting mechanism is provided on the side of the box (1) away from the ultrasonic detection probe (11) to make the two ultrasonic detection probes (11) approach or move away from each other.

2. The high-efficiency crack detection device for hydraulic testing as described in claim 1, characterized in that, The multi-angle detection mechanism includes positioning covers (7) that are fixedly connected to one end of the two slide plates (5), and a limiting ball (12) is movably connected to the inner side of each positioning cover (7).

3. The high-efficiency crack detection device for hydraulic testing as described in claim 2, characterized in that, The positioning cover (7) is threaded with a positioning bolt (9), and the lower end of the positioning bolt (9) abuts against the outer side of the limiting ball (12).

4. The high-efficiency crack detection device for hydraulic testing as described in claim 2, characterized in that, The probe lifting mechanism includes sleeves (6) that are fixedly connected to one side of the two limiting balls (12), and threaded rods (10) are rotatably connected to the upper side of each sleeve (6). The lower end of each threaded rod (10) is threadedly sleeved to the upper side of the ultrasonic detection probe (11). A handle (8) is fixedly connected to the upper end of each threaded rod (10). Multiple clamping plates (21) are fixedly connected to the side of the ultrasonic detection probe (11). Each clamping plate (21) is slidably connected to the inner side of the sleeve (6).

5. The high-efficiency crack detection device for hydraulic testing as described in claim 1, characterized in that, The equal spacing setting mechanism includes a lead screw (18) rotatably connected to the two sides inside the box (1). The lead screw (18) is threadedly connected to the lower side of the push plate (14). The end of the lead screw (18) away from the ultrasonic detection probe (11) extends outward from the box (1) and is fixedly connected to a handwheel (2). A scale plate (4) is fixedly connected to the side of the box (1) near the ultrasonic detection probe (11). The scale plate (4) is configured to cooperate with the two slide plates (5).

6. The high-efficiency crack detection device for hydraulic testing as described in claim 1, characterized in that, An LED display panel (3) is installed on the upper side of the box (1), and the LED display panel (3) is electrically connected to the two ultrasonic detection probes (11).

7. The high-efficiency crack detection device for hydraulic testing as described in claim 1, characterized in that, Multiple rubber friction pads (16) are installed on the lower side of the box (1).

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