Hydraulic engineering crack detection device

Abstract

The utility model discloses water conservancy project crack detection device relates to crack detection field, including scale and plane transducer still includes storage agent jar, and storage agent jar includes the jar body for storing coupling agent, applicator, and the applicator includes the smearing screen board of elasticity setting in storage agent jar, and the smearing screen board and jar body between reservation agent cavity, and the smearing screen board is fixed with the limit ring, and the limit ring inner diameter is less than the outer diameter of plane transducer, the jar body is detachable with scale, and the application adopts smearing screen board and limit ring cooperation to realize the even smearing of plane transducer coupling agent, and limit ring passes through the support of vertical rod, and through the rotary probe scraper, removes the extra coupling agent, and forms the agent layer of even thickness.

Description

Technical Field

[0001] This utility model relates to the field of crack detection, and in particular to a crack detection device for water conservancy projects. Background Technology

[0002] Crack detection in water conservancy projects is a crucial step in ensuring structural safety. Among them, crack depth testers are intelligent non-destructive testing devices based on the principle of acoustic wave diffraction. They are mainly used in water conservancy projects to measure the depth of cracks on concrete surfaces and the propagation speed of ultrasonic waves. In order to fill the tiny gaps between the probe and the concrete surface being tested, eliminate air interference, and reduce ultrasonic wave reflection loss, a coupling agent needs to be applied to both ends of the crack when using the ultrasonic method to detect crack depth to ensure effective transmission of sound waves.

[0003] Currently, the manual application of coupling agent requires repeated application to ensure uniform coverage of the planar transducer probe. Applying too much agent can cause ultrasonic reflection artifacts, while applying too little can impair sound wave transmission. Precise thickness control is difficult during manual operation. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the thickness and uniformity of the coupling agent cannot be accurately controlled when manually applying it during crack detection, and to propose a crack detection device for water conservancy projects.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a scale and a planar transducer, and also includes a storage tank, wherein the storage tank includes a tank body for storing a coupling agent; An applicator, comprising an applicator mesh plate elastically disposed within a storage tank, wherein an agent cavity is reserved between the applicator mesh plate and the tank body, and a limiting ring is fixed on the applicator mesh plate, wherein the inner diameter of the limiting ring is smaller than the outer diameter of the planar transducer; The tank and the scale are detachable.

[0006] As a further description of the above technical solution: multiple annularly distributed scrapers are fixed on the coating screen; The limiting ring is fixed to the coating mesh plate by multiple ring-shaped uprights. The uprights raise the limiting ring and the coating layer is formed by scraping with a scraper. The coating mesh is fixed to the can by springs.

[0007] As a further description of the above technical solution: multiple guide rails are distributed in a ring on the inner wall of the tank, and the coating mesh plate and the limiting ring are both provided with sliding grooves that are adapted to the guide rails; The edge of the planar transducer abuts against the outer wall of the annularly distributed guide rails.

[0008] As a further description of the above technical solution: a check valve is fixedly connected to one side of the bottom of the tank.

[0009] As a further description of the above technical solution: the top opening of the tank is provided with a cover plate.

[0010] As a further description of the above technical solution: the bottom of the tank is provided with a groove 311 that matches the scale, and a fixing bolt that abuts against the scale is threaded to one side of the bottom of the tank.

[0011] As a further description of the above technical solution: a sealing ring is embedded in the upper surface of the limiting ring.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: This application uses a coating mesh plate and a limiting ring to achieve uniform coating of coupling agent for planar transducers. The limiting ring is supported by a vertical rod, and the excess coupling agent is scraped off by a rotating probe scraper to form a uniformly thick layer of agent. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the scale structure of this utility model; Figure 3 This is a schematic diagram of the storage tank structure of this utility model; Figure 4 This is a schematic diagram showing the disassembled structure of the applicator and the storage tank of this utility model; Figure 5 This is a schematic diagram of the planar transducer of this utility model in the state of being coated with coupling agent.

[0014] Legend: 10. Ruler; 20. Planar transducer; 30. Storage tank; 31. Tank body; 311. Slot; 32. Cover plate; 33. Check valve; 34. Fixing bolt; 35. Guide rail; 40. Applicator; 41. Applicator mesh; 411. Agent chamber; 412. Slide groove; 42. Scraper; 43. Limiting ring; 431. Sealing ring; 44. Spring. Detailed Implementation

[0015] 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.

[0016] like Figure 1- Figure 5 As shown, the present invention provides a hydraulic engineering crack detection device, which includes a scale 10 and a planar transducer 20, and also includes a storage tank 30, which includes a tank body 31 for storing coupling agent. The applicator 40 includes an applicator mesh plate 41 elastically disposed inside the storage tank 30. The applicator mesh plate 41 has multiple evenly distributed fine holes. The outer edge of the applicator mesh plate 41 abuts against the inner wall of the storage tank 30 to prevent a large amount of coupling agent from overflowing through the edge gaps. An agent cavity 411 is reserved between the applicator mesh plate 41 and the tank 31. A limiting ring 43 is fixed on the applicator mesh plate 41. The inner diameter of the limiting ring 43 is smaller than the outer diameter of the planar transducer 20. Therefore, the probe part of the planar transducer 20 is inserted into the tank 31, and then the planar side of the bottom of the probe rests on the limiting ring 43. By pressing the planar transducer 20 downward, the coupling agent in the agent cavity 411 is evenly applied to the probe of the planar transducer 20 through the fine holes of the applicator mesh plate 41. Meanwhile, the tank 31 is detached and connected to the scale 10 so that the tank 31 can be assembled on the scale 10, thereby facilitating the positioning of the planar transducer 20 by the scale 10 after the coupling agent is applied.

[0017] like Figure 4 , Figure 5 As shown, multiple circularly distributed scrapers 42 are fixed on the coating mesh plate 41; Furthermore, the limiting ring 43 is fixed to the coating screen 41 by multiple ring-shaped uprights. The uprights raise the limiting ring 43 and the coating is formed by the scraper 42. After the coupling agent is applied to the lower surface of the planar transducer 20 through the coating screen 41, the excess coupling agent is scraped off by rotating the planar transducer 20, thereby ensuring the uniformity of the coating coupling agent thickness. Meanwhile, the coating screen 41 is fixedly connected to the tank 31 by a spring 44, so that the coating screen 41 can be reset under the elastic support of the spring 44.

[0018] like Figure 4 , Figure 5 As shown, multiple guide rails 35 are distributed in a ring on the inner wall of the tank 31. The guide rails 35 are vertically arranged on the inner wall of the tank 31. The coating screen 41 and the limiting ring 43 are both provided with grooves 412 that are adapted to the guide rails 35, so that the coating screen 41 and the limiting ring 43 can slide stably in the tank 31 with the cooperation of the grooves 412. Furthermore, the planar transducer 20 is positioned by the edge of the planar transducer 20 abutting against the outer wall of the annularly distributed guide rails 35, thereby ensuring that the planar transducer 20 and the limiting ring 43 are coaxially arranged.

[0019] like Figure 3 , Figure 4As shown, a check valve 33 is fixedly connected to one side of the bottom of the tank 31. The end of the check valve 33 away from the tank 31 is threadedly connected to the head of the coupling agent hose. The check valve 33 opens in one direction toward the coupling agent chamber 411. When the coupling agent in the coupling agent chamber 411 is used up, the coupling agent in the hose is squeezed into the coupling agent chamber 411 by threading the hose head to the check valve 33.

[0020] like Figure 3 , Figure 4 As shown, a cover plate 32 is provided at the top opening of the tank 31. The outer wall of the cover plate 32 is wrapped with a rubber layer to increase the friction coefficient with the inner wall of the tank 31. When the tank 31 is not in use, the cover plate 32 is placed on the opening of the tank 31 to prevent the coupling agent in the agent cavity 411 from flowing out.

[0021] like Figure 1 , Figure 3 As shown, the bottom of the tank 31 has a slot 311 that matches the scale 10. The scale 10 is inserted into the slot 311, and then the fixing bolt 34 that abuts the scale 10 is connected by rotating the threaded connection on one side of the bottom of the tank 31, which facilitates the assembly and disassembly of the tank 31 and the scale 10.

[0022] like Figure 4 As shown, a sealing ring 431 is embedded in the upper surface of the limiting ring 43. The sealing ring 431 is coaxially arranged with the limiting ring 43 so that when the probe plane side of the planar transducer 20 abuts against the sealing ring 431, the sealing ring 431 prevents the coupling agent from overflowing from the contact part between the probe and the limiting ring 43.

[0023] Working principle: The hose head is threadedly connected to the check valve 33, squeezing the coupling agent in the hose into the agent chamber 411. Then, the scale 10 is clipped into the slot 311 at the bottom of the tank 31, and the tank 31 is fixed to the scale 10 by rotating the fixing bolt 34 clockwise. The probe of the planar transducer 20 is then inserted into the can 31 and pressed against the limiting ring 43. The planar transducer 20 is then pressed down, so that the coupling agent in the agent chamber 411 is applied to the probe under the squeezing action of the application mesh plate 41. The planar transducer 20 is then released and rebounded under the elastic rebound action of the spring 44. The planar transducer 20 is then rotated so that the scraper 42 scrapes off the excess coupling agent, thus forming a thick and evenly applied agent layer.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crack detection device for hydraulic engineering, comprising a scale (10) and a planar transducer (20), characterized in that, It also includes a storage tank (30), which includes a tank body (31) for storing the coupling agent. The applicator (40) includes an applicator mesh plate (41) elastically disposed in the storage tank (30), with a cavity (411) reserved between the applicator mesh plate (41) and the tank body (31), and a limiting ring (43) fixed on the applicator mesh plate (41), the inner diameter of the limiting ring (43) being smaller than the outer diameter of the planar transducer (20); The tank (31) and the scale (10) are detachable.

2. The hydraulic engineering crack detection device according to claim 1, characterized in that, Multiple circularly distributed scrapers (42) are fixed on the coating mesh plate (41). The limiting ring (43) is fixed to the coating mesh plate (41) by multiple ring-shaped uprights. The uprights raise the limiting ring (43) and the coating layer is formed by scraping with the scraper (42). The coating mesh (41) is fixed to the tank (31) by a spring (44).

3. The hydraulic engineering crack detection device according to claim 1, characterized in that, The inner wall of the tank (31) has multiple guide rails (35) arranged in a ring. The coating mesh plate (41) and the limiting ring (43) are both provided with grooves (412) that are adapted to the guide rails (35). The edge of the planar transducer (20) abuts against the outer wall of the annularly distributed guide rails (35).

4. The hydraulic engineering crack detection device according to claim 1, characterized in that, A check valve (33) is fixedly connected to one side of the bottom of the tank (31).

5. The hydraulic engineering crack detection device according to claim 1, characterized in that, The top opening of the tank (31) is provided with a cover plate (32).

6. The hydraulic engineering crack detection device according to claim 1, characterized in that, The bottom of the tank (31) is provided with a slot 311 (311) that is compatible with the scale (10), and a fixing bolt (34) that abuts against the scale (10) is threaded on one side of the bottom of the tank (31).

7. The hydraulic engineering crack detection device according to claim 1, characterized in that, The upper surface of the limiting ring (43) is inlaid with a sealing ring (431).

Images