Portable ultrasonic crack detector

Abstract

The utility model relates to the field of ultrasonic detectors for engineering detection, and discloses a portable ultrasonic crack detector which comprises a bottom plate, electric wheels are arranged at the bottom of the bottom plate, a buffer mechanism is arranged at the bottom of the bottom plate, a battery box is fixedly connected to the top of the bottom plate, a moving groove is formed in the battery box, and the moving groove is fixedly connected with the bottom plate. A moving groove is formed in the battery box, a moving plate is slidably connected to the inner wall of the moving groove, a solar power generation module is arranged at the top of the moving plate, a protection mechanism is arranged in the battery box, the protection mechanism comprises a stepping motor, and the stepping motor is installed on the rear side of the battery box. According to the utility model, when the equipment is not used, the stepping motor drives the solar power generation module to be stored in the battery box, so that the possibility that the solar power generation module is possibly damaged by collision of external objects when the equipment is stored is reduced, the protection effect is improved, and the safety of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to an ultrasonic detector for engineering detection, in particular to a portable ultrasonic crack detector. Background Art

[0002] Portable ultrasonic crack detectors are widely used in roads, bridges, tunnels, water conservancy and other fields to detect internal cracks and defects in materials such as concrete structures and metal structures. Ultrasonic detection is mainly based on the propagation and diffraction characteristics of ultrasonic waves. When ultrasonic waves propagate in concrete, metal or other materials, if they encounter cracks, the sound waves will diffract at the end points of the cracks. This diffraction phenomenon allows the sound waves to bypass the cracks and continue to propagate. At the same time, their propagation path and propagation time will also change. The detector determines the location, depth and nature of the cracks by measuring and analyzing the propagation time and path changes of ultrasonic waves.

[0003] After searching, Chinese patent announcement number: CN113325078A discloses a portable ultrasonic detector for geological exploration, including a chassis, a base and a support frame; chassis: direction adjustment units are installed at the four corners of the bottom, and a moving mechanism is installed on the adjustment part of the direction adjustment unit. This patent can complete basic crack detection work, and is easy to move, accurate in surveying, and can protect the equipment during movement. However, the equipment in the above patent generally does not require personnel to follow, but is controlled remotely. When performing outdoor detection work, more electronic equipment is required, and it needs to be moved over a long distance, which consumes a lot of electricity. If the equipment is low on power during movement and cannot return, the staff needs to find the equipment themselves, which is inconvenient, increases the workload, and reduces work efficiency. Therefore, a portable ultrasonic crack detector is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a portable ultrasonic crack detector, which aims to improve the problem in the prior art that "the equipment is insufficient in power during movement and the staff have to find the equipment themselves, which is inconvenient."

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a portable ultrasonic crack detector, comprising a base plate, an electric wheel is provided at the bottom of the base plate, a buffer mechanism is provided at the bottom of the base plate, the top of the base plate is fixedly connected to a battery box, a shift groove is provided inside the battery box, a movable plate is slidably connected to the inner wall of the shift groove, a solar power generation module is provided on the top of the movable plate, a protective mechanism is provided inside the battery box, the protective mechanism comprises a stepper motor, the stepper motor is installed on the rear side of the battery box, a bidirectional screw rod is fixedly connected to the front side of the output shaft of the stepper motor, a slider is slidably connected to the surface of the bidirectional screw rod, a transmission rod is hinged to the surface of the slider, an end of the transmission rod away from the slider is hinged to the surface of the movable plate, an infrared obstacle avoidance sensor is provided on the top of the base plate, and an ultrasonic detector is provided on the top of the base plate.

[0006] As a further description of the above technical solution:

[0007] The surface of the bidirectional screw rod is provided with two sections of threads with opposite rotation directions. The number of the sliders is set to two groups, and the two groups of sliders are respectively sleeved on the threads of the bidirectional screw rod with different rotation directions.

[0008] As a further description of the above technical solution:

[0009] The buffer mechanism includes a connecting rod 1, the top of the connecting rod 1 is rotatably connected to the bottom of the base plate, and the end of the connecting rod 1 away from the base plate is rotatably connected to the connecting rod 2.

[0010] As a further description of the above technical solution:

[0011] The number of the electric wheels is set to be multiple, and the sides of the multiple electric wheels that are close to each other are rotatably connected to the end of the connecting rod 2 that is away from the connecting rod 1.

[0012] As a further description of the above technical solution:

[0013] The connecting rod 1 and the connecting rod 2 are elastically connected via a spring.

[0014] As a further description of the above technical solution:

[0015] The connecting rod 1 and the connecting rod 2 are both arranged in an inclined state, the connecting rod 1 and the connecting rod 2 form a V shape, and the spring is arranged inside the opening formed by the V shape by the connecting rod 1 and the connecting rod 2.

[0016] As a further description of the above technical solution:

[0017] The buffer mechanism further includes a limit plate and a limit column. The limit plate is fixedly mounted on the surface of the second connecting rod, and the limit column is fixedly mounted on the surface of the first connecting rod. A limit groove is provided on the inner wall of the limit plate.

[0018] As a further description of the above technical solution:

[0019] The limiting groove is configured to be arc-shaped, and the limiting column slides on the inner wall of the limiting groove.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, through the cooperation of the battery box, the stepper motor, the bidirectional screw rod, the slider, the transmission rod, the movable plate and the solar power generation module, the outdoor endurance of the equipment can be improved and the possibility of insufficient power during work can be reduced. At the same time, when the equipment is not in use, the solar power generation module is driven by the stepper motor to be stored in the battery box, which reduces the possibility that the solar power generation module may be damaged by collision with external objects when the equipment is stored, thereby improving the protection effect and increasing the safety of the equipment.

[0022] 2. In the present invention, the cooperation of connecting rod 1, connecting rod 2, spring, limit plate, limit column and limit groove plays a role of protection and buffering, thereby reducing the possibility of damage to the electronic equipment and further increasing the safety of the equipment during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic top view of the overall three-dimensional structure of the present invention;

[0024] Figure 2 It is a bottom view schematic diagram of the overall three-dimensional structure of the present utility model;

[0025] Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of the battery box, protective mechanism, and solar power generation module in the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the buffer mechanism in the utility model.

[0027] Legend:

[0028] 1. Base plate; 2. Electric wheel; 3. Battery box; 4. Stepper motor; 5. Bidirectional screw; 6. Slider; 7. Transmission rod; 8. Moving plate; 9. Moving slot; 10. Solar power generation module; 11. Infrared obstacle avoidance sensor; 12. Ultrasonic detector; 13. Connecting rod 1; 14. Connecting rod 2; 15. Spring; 16. Limit plate; 17. Limit column; 18. Limit slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1 - Figure 3 , the utility model provides an embodiment: a portable ultrasonic crack detector, including a base plate 1, an electric wheel 2 is provided at the bottom of the base plate 1, the electric wheel 2 includes an electric hub and a tire, and the electric wheel 2 is driven by electricity, which is a prior art. A buffer mechanism is provided at the bottom of the base plate 1, and a battery box 3 for providing power to the equipment is fixedly connected to the top of the base plate 1. A battery pack is provided inside the battery box 3 for storing energy. A shift groove 9 is provided inside the battery box 3 to match the movable plate 8, and the movable plate 8 is slidably connected to the inner wall of the shift groove 9. A solar power generation module 10 is provided on the top of the movable plate 8, which can convert solar energy into electrical energy and store it in the battery pack to improve the outdoor endurance of the equipment, which is a prior art. A protective mechanism is provided inside the battery box 3.

[0031] Reference Figure 1 、 Figure 3 The protective mechanism includes a stepper motor 4. The stepper motor 4 can accurately control the rotation angle of its output shaft, which is convenient for adjusting the rotation speed and rotation angle of its rotation shaft. It can be adjusted accordingly according to different needs to improve the control accuracy. The stepper motor 4 is installed on the rear side of the battery box 3. The front side of the output shaft of the stepper motor 4 is fixedly connected with a bidirectional screw rod 5 arranged in a horizontal state. The surface of the bidirectional screw rod 5 is slidably connected with a slider 6. The surface of the bidirectional screw rod 5 is provided with two sections of threads with opposite rotation directions. The number of sliders 6 is set to two groups. The two groups of sliders 6 are respectively sleeved on the threads of the bidirectional screw rod 5 with different rotation directions. When the bidirectional screw rod 5 rotates, the two groups of sliders 6 move away from or approach each other. The surface of the slider 6 is hinged with a transmission rod 7 arranged in an inclined state. The end of the transmission rod 7 away from the slider 6 is hinged to the surface of the movable plate 8. An infrared obstacle avoidance sensor 11 is provided on the top of the base plate 1, and an ultrasonic detector 12 for detecting cracks in concrete during project acceptance inspection is provided on the top of the base plate 1.

[0032] Reference Figure 1 、 Figure 2 、 Figure 4The buffer mechanism includes a connecting rod 13, the top of the connecting rod 13 is rotatably connected to the bottom of the base plate 1, and the end of the connecting rod 13 away from the base plate 1 is rotatably connected to the connecting rod 2 14. The number of electric wheels 2 is set to multiple. By setting multiple electric wheels 2, the equipment is more stable and convenient when moving. The side where the multiple electric wheels 2 are close to each other is rotatably connected to the end of the connecting rod 2 14 away from the connecting rod 13.

[0033] Reference Figure 2 、 Figure 4 , connecting rod 13 and connecting rod 2 14 are elastically connected by spring 15, and spring 15 is initially set to a compressed state. By setting spring 15, the angle of the V-shaped angle formed by connecting rod 1 13 and connecting rod 2 14 tends to become larger, thereby providing a supporting force to the base plate 1, and connecting rod 1 13 and connecting rod 2 14 are both set to an inclined state. The lengths of connecting rod 1 13 and connecting rod 2 14 are equal, and connecting rod 1 13 and connecting rod 2 14 form a V shape. The spring 15 is set inside the V-shaped opening formed by connecting rod 1 13 and connecting rod 2 14. By setting spring 15, the bumps caused by uneven ground when the equipment is moved can be reduced, and a certain degree of buffering protection effect is played, thereby improving safety performance.

[0034] Reference Figure 4 The buffer mechanism also includes a limit plate 16 and a limit column 17. The limit plate 16 is fixedly mounted on the surface of the connecting rod 2 14, and the limit column 17 is fixedly mounted on the surface of the connecting rod 1 13. A limit groove 18 is provided on the inner wall of the limit plate 16, which cooperates with the limit column 17. The limit groove 18 is set to an arc shape, and the limit column 17 slides on the inner wall of the limit groove 18. Through the cooperation of the limit column 17 and the limit groove 18, the angle at which the connecting rod 1 13 and the connecting rod 2 14 can rotate is limited, which can play a protective role and prevent the connecting rod 13 and the connecting rod 2 14 from being damaged due to excessive rotation angle.

[0035] Working principle: When in use, by starting the stepper motor 4, the stepper motor 4 drives the bidirectional screw rod 5 to rotate, and the rotation of the bidirectional screw rod 5 drives the two sets of sliders 6 to move away from each other. The displacement of the slider 6 drives the movable plate 8 to move through the transmission rod 7, thereby making the solar power generation module 10 on the top of the movable plate 8 move to the outside of the battery box 3 and exposed to the sun, so as to facilitate power generation and improve the outdoor endurance of the equipment. When not in use, the bidirectional screw rod 5 is driven by the stepper motor 4 to rotate in the opposite direction, so that the two sets of sliders 6 are close to each other, and the movable plate 8 and the solar power generation module 10 are stored in the interior of the battery box 3, reducing the possibility of damage to the solar power generation module 10 by collision with external objects and improving the protection effect.

[0036] When the equipment moves, due to the uneven ground, a certain degree of up and down vibration will be generated. The vibration is transmitted to the connecting rod 1 13 through the bottom plate 1, so that the angle of the V-shaped angle formed by the connecting rod 1 13 and the connecting rod 2 14 becomes smaller, and the spring 15 is compressed. The compression and rebound of the spring 15 absorb part of the vibration energy, reducing the hard impact and collision of the battery pack, solar power generation module 10, infrared obstacle avoidance sensor 11, and ultrasonic detector 12 inside the battery box 3, thereby reducing the possibility of damage to the electronic equipment, improving the protection performance, and increasing the safety of the equipment during movement.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A portable ultrasonic crack detector, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is provided with an electric wheel (2), the bottom of the base plate (1) is provided with a buffer mechanism, the top of the base plate (1) is fixedly connected to a battery box (3), a shifting groove (9) is provided inside the battery box (3), a movable plate (8) is slidably connected to the inner wall of the shifting groove (9), a solar power generation module (10) is provided on the top of the movable plate (8), a protective mechanism is provided inside the battery box (3), the protective mechanism comprises a stepping motor (4), the stepping motor (4) is installed on the rear side of the battery box (3), a bidirectional screw rod (5) is fixedly connected to the front side of the output shaft of the stepping motor (4), a slider (6) is slidably connected to the surface of the bidirectional screw rod (5), a transmission rod (7) is hinged to the surface of the slider (6), and an end of the transmission rod (7) away from the slider (6) is hinged to the surface of the movable plate (8), an infrared obstacle avoidance sensor (11) is provided on the top of the base plate (1), and an ultrasonic detector (12) is provided on the top of the base plate (1).

2. The portable ultrasonic crack detector according to claim 1, characterized in that: The surface of the bidirectional screw rod (5) is provided with two sections of threads with opposite rotation directions. The number of the sliders (6) is set to two groups, and the two groups of sliders (6) are respectively sleeved on the threads of the bidirectional screw rod (5) with different rotation directions.

3. The portable ultrasonic crack detector according to claim 1, characterized in that: The buffer mechanism comprises a connecting rod 1 (13), the top of the connecting rod 1 (13) is rotatably connected to the bottom of the base plate (1), and the end of the connecting rod 1 (13) away from the base plate (1) is rotatably connected to the connecting rod 2 (14).

4. The portable ultrasonic crack detector according to claim 3, characterized in that: The number of the electric wheels (2) is set to be multiple, and the multiple electric wheels (2) are rotatably connected to one end of the connecting rod 2 (14) away from the connecting rod 1 (13) at a side close to each other.

5. The portable ultrasonic crack detector according to claim 4, characterized in that: The connecting rod 1 (13) and the connecting rod 2 (14) are elastically connected via a spring (15).

6. The portable ultrasonic crack detector according to claim 5, characterized in that: The connecting rod 1 (13) and the connecting rod 2 (14) are both arranged in an inclined state, the connecting rod 1 (13) and the connecting rod 2 (14) form a V shape, and the spring (15) is arranged inside the opening formed by the connecting rod 1 (13) and the connecting rod 2 (14).

7. The portable ultrasonic crack detector according to claim 6, characterized in that: The buffer mechanism further comprises a limit plate (16) and a limit column (17), wherein the limit plate (16) is fixedly mounted on the surface of the second connecting rod (14), and the limit column (17) is fixedly mounted on the surface of the first connecting rod (13), and a limit groove (18) is provided on the inner wall of the limit plate (16).

8. The portable ultrasonic crack detector according to claim 7, characterized in that: The limiting groove (18) is configured to be arc-shaped, and the limiting column (17) slides on the inner wall of the limiting groove (18).

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