Gap depth measuring device for road survey

Abstract

The utility model relates to the technical field of crack measuring equipment, and discloses a crack depth measuring device for road survey, which comprises an operation box, a display screen is fixedly mounted on the operation box, an observation port is formed in the operation box at the front side of the display screen, and first sliding chutes are formed in the operation box at the two sides of the observation port; a seam aligning plate is fixedly installed at the lower end of the operation box, two guide shafts are fixedly installed in the operation box, and two adjusting bases are arranged between the two guide shafts. The two guide shafts are arranged in the operation box, the two adjusting seats provided with the ultrasonic detection heads are installed on the two guide shafts in a sliding mode, and the movable sliding rods are arranged in the adjusting seats, so that one ends of the ultrasonic detection heads can abut against the road surface more stably, and the two adjusting plates are arranged on the operation box; an adjusting groove is formed in each of the two adjusting plates, and a plurality of positioning rubber pads are arranged in the adjusting grooves, so that the distance between the two ultrasonic detection heads can be quickly and synchronously adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of crack measuring equipment, in particular to a crack depth measuring device for highway surveying. Background Art

[0002] Ultrasonic pavement crack depth measuring equipment is an instrument that uses the ultrasonic principle to detect the depth of pavement cracks. The ultrasonic pavement crack depth measuring equipment measures the depth of pavement cracks by emitting ultrasonic waves to the pavement and then receiving the reflected waves.

[0003] Ultrasonic pavement crack depth measuring equipment is usually composed of ultrasonic probes, signal processing units and displays, such as the Chinese utility model patent disclosed by publication number CN217425307U: a positioning device for ultrasonic detection of concrete cracks. The application uses an adjustment device to enable two transducers to reach the predetermined measuring point more accurately, and the clamping device also avoids the probe offset caused by uneven force of workers, which ultimately causes measurement errors. However, the main carrier of the application is composed of structures such as a base and a support rod. Therefore, when measuring cracks in buildings or pavement, convenient handheld operation cannot be achieved, which brings certain inconvenience to the crack measurement operation. In addition, when the application performs synchronous position adjustment on the two ultrasonic probes, it is necessary to manually rotate the bevel gear two to drive the bevel gear one and the screw rod to achieve the adjustment of the sliding block. Therefore, since the screw rod needs to rotate a certain process to achieve the displacement adjustment of the sliding block, the adjustment movement of the sliding block requires repeated rotation of the bevel gear one for several circles, so that the position adjustment of the sliding block cannot be adjusted quickly and accurately. Utility Model Content

[0004] The utility model aims to provide a gap depth measuring device for highway surveying, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A gap depth measuring device for highway surveying comprises an operation box, a display screen is fixedly mounted on the operation box, an observation port is provided on the operation box located in front of the display screen, and a first slide slot is provided on the operation boxes located on both sides of the observation port, a seam-matching plate is fixedly mounted on the lower end of the operation box, two guide shafts are fixedly mounted in the operation box, two adjustment seats are arranged between the two guide shafts, ultrasonic detection heads are fixedly mounted in the middle of the lower ends of the two adjustment seats, a sleeve is fixedly mounted in the middle of the upper ends of the adjustment seats, two sliding rods are movably mounted in the adjustment seats, and the adjustment seats are movably mounted between the two guide shafts through the two sliding rods, and two adjustment plates are movably mounted on the operation box.

[0007] As a further preferred embodiment of the present invention, handles are fixedly mounted on both sides of the operation box, and a plurality of control buttons are movably mounted on the operation box, and the control buttons are electrically connected to a main control board in the operation box via connecting wires.

[0008] As a further preferred solution of the utility model, second slide grooves are provided on both sides of the display screen, and the display screen is electrically connected to the main control board in the operation box through a connecting line;

[0009] Based on this, a second sliding groove is provided on both sides of the display screen to achieve stable pushing of the adjustment plate.

[0010] As a further preferred embodiment of the present invention, the seam plates are made of transparent acrylic material.

[0011] As a further preferred solution of the utility model, two mounting grooves are provided in the adjusting seat, two countersunk holes are provided at the bottom of the mounting groove, connecting screws are inserted and installed in the countersunk holes, a sliding hole is provided in the sliding rod, the sliding rod is inserted and installed in the mounting groove, and one end of the countersunk hole is also threadedly connected to the lower end of the sliding rod, and a compression spring is provided at the countersunk hole sleeve located at the bottom of the sliding rod and the mounting groove, and the sliding hole is inserted and connected to the guide shaft, that is, the adjusting seat is slidably connected between the two guide shafts through the two sliding rods, and the upper end of the sleeve passes through the corresponding first sliding groove and extends to the top of the operation box;

[0012] Based on this, the adjustment seat is slidably connected to the two guide shafts with the help of two sliding rods, and the force displacement of one end of the ultrasonic detection head can be achieved by cooperating with the connecting screws and compression springs, so that one end of the ultrasonic detection head can fully fit and contact the road surface during measurement.

[0013] As a further preferred embodiment of the present invention, an oblique adjustment groove is provided in the adjustment plate, a plurality of positioning rubber pads are fixedly installed on both sides of the adjustment groove, a slider is fixedly installed on opposite sides of the two adjustment plates, a connecting rod is fixedly connected between the two adjustment plates, the adjustment groove is inserted into the outer side of the corresponding sleeve, and the slider is slidably connected in the corresponding second slide groove;

[0014] Based on this, by setting up two adjustment plates and cooperating with the oblique adjustment slots and sleeves, the use positions of the two ultrasonic detection heads can be adjusted quickly and synchronously.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the utility model, two guide shafts are arranged in the operation box, and two adjustment seats with ultrasonic detection heads installed are slidably installed on the two guide shafts, and a displaceable sliding rod is arranged in the adjustment seat, so that one end of the ultrasonic detection head can be more stably pressed against the road surface, and two adjustment plates are arranged on the operation box, and an adjustment groove is respectively provided in the two adjustment plates, and a plurality of positioning rubber pads are arranged in the adjustment groove, so that the distance between the two ultrasonic detection heads can be quickly and synchronously adjusted, and the whole device is more convenient to be handheld. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0019] Figure 3 This is a bottom view of the main structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the disassembly structure of the adjustment seat of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the adjustment plate of the utility model;

[0022] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0023] In the figure: 1. operation box; 2. display screen; 3. observation port; 4. first slide groove; 5. seam plate; 6. adjustment seat; 7. ultrasonic detection head; 8. sleeve; 9. slide rod; 10. adjustment plate; 11. handle; 12. guide shaft; 13. mounting groove; 14. countersunk hole; 15. connecting screw; 16. compression spring; 17. slide hole; 18. adjustment groove; 19. positioning rubber pad; 20. slider; 21. connecting rod; 22. second slide groove; 23. control button. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-Figure 6As shown, the utility model provides a gap depth measuring device for highway survey, including an operation box 1, a display screen 2 is fixedly installed on the operation box 1, an observation port 3 is provided on the operation box 1 located in front of the display screen 2, and a first slide groove 4 is also provided on the operation box 1 located on both sides of the observation port 3, a seam plate 5 is fixedly installed on the lower end of the operation box 1, two guide shafts 12 are fixedly installed in the operation box 1, two adjustment seats 6 are arranged between the two guide shafts 12, ultrasonic detection heads 7 are fixedly installed in the middle of the lower ends of the two adjustment seats 6, a sleeve 8 is fixedly installed in the middle of the upper ends of the adjustment seats 6, two slide bars 9 are movably installed in the adjustment seats 6, and the adjustment seats 6 are movably installed between the two guide shafts 12 through the two slide bars 9, and two adjustment plates 10 are also movably installed on the operation box 1.

[0026] like Figure 1 , Figure 3 As shown, handles 11 are fixedly installed on both sides of the operation box 1, and multiple control buttons 23 are movably installed on the operation box 1. The control buttons 23 are electrically connected to the main control board in the operation box 1 through connecting lines. Second slide grooves 22 are opened on both sides of the display screen 2, and the display screen 2 is electrically connected to the main control board in the operation box 1 through connecting lines. A second slide groove 22 is opened on both sides of the display screen 2, which can realize the stable pushing of the adjustment plate 10, and the seam plate 5 is made of transparent acrylic material.

[0027] like Figure 1-Figure 6 As shown, two mounting grooves 13 are provided in the adjusting seat 6, and two countersunk holes 14 are provided at the bottom of the mounting groove 13. Connecting screws 15 are inserted and installed in the countersunk holes 14. A sliding hole 17 is provided in the sliding rod 9. The sliding rod 9 is inserted and installed in the mounting groove 13, and one end of the countersunk hole 14 is also threadedly connected to the lower end of the sliding rod 9. The countersunk holes 14 located at the bottom of the sliding rod 9 and the mounting groove 13 are sleeved with compression springs 16, and the sliding hole 17 is inserted and connected to the guide shaft 12, that is, the adjusting seat 6 is slidably connected between the two guide shafts 12 through the two sliding rods 9, and the upper end of the sleeve 8 passes through the corresponding first sliding groove 4 and extends to the top of the operating box 1, and the adjusting seat 6 is slidably connected to the two guide shafts 12 with the help of the two sliding rods 9, and cooperates with the connecting screws The wire 15 and the compression spring 16 can realize the force displacement of one end of the ultrasonic detection head 7, so that one end of the ultrasonic detection head 7 can fully fit and contact with the road surface during measurement. An oblique adjustment groove 18 is opened in the adjustment plate 10, and a plurality of positioning rubber pads 19 are fixedly installed on both sides of the adjustment groove 18. Slide blocks 20 are fixedly installed on opposite sides of the two adjustment plates 10. A connecting rod 21 is also fixedly connected between the two adjustment plates 10. The adjustment groove 18 is inserted into the outer side of the corresponding sleeve 8, and the slider 20 is slidably connected in the corresponding second slide groove 22. Through the setting of the two adjustment plates 10, and in conjunction with the oblique adjustment groove 18 and the sleeve 8, the use position of the two ultrasonic detection heads 7 can be quickly and synchronously adjusted.

[0028] It should be noted that the utility model is a crack depth measuring device for highway survey. Before measuring the cracks in the road surface, it is necessary to apply coupling agent to one end of the two ultrasonic detection heads 7. Then, the handles 11 on both sides of the operation box 1 can be held with both hands, and the lower end of the operation box 1 can be pressed against the road surface through the two handles 11, so that the lower end of the ultrasonic detection head 7 is pressed against the road surface, and the ultrasonic detection head 7 is restricted by the road surface and moves up, that is, the ultrasonic detection head 7 drives the adjustment seat 6 to move up between the two slide bars 9 through the two mounting grooves 13, and the mounting groove 13 compresses the compression spring 16 toward the bottom of the slide bar 9, so that the lower end of the ultrasonic detection head 7 can fit tightly on the road surface. Then, the seam plate 5 can be observed through the observation port 3 and the seam plate 5 can be adjusted to the upper position of the crack. Moreover, when the ultrasonic method is used for crack depth detection, each crack At least three measuring areas are arranged at representative locations, with the crack as the center. When detecting each measuring area, there should be no less than four pairs of measuring points. Each pair of measuring points is symmetrically located on both sides of the crack. The two adjusting plates 10 can be pushed synchronously by directly using two fingers, so that the adjusting plates 10 can be moved synchronously on the operating box 1, and the sliders 20 on one side of the two adjusting plates 10 can slide in the corresponding second slide grooves 22 respectively, and the adjusting plates 10 can slide on the outside of the corresponding sleeve 8 through the internal adjustment groove 18, so that the sleeve 8 is pushed to move horizontally in the corresponding first slide groove 4, and the sleeve 8 can be used to drive the adjustment seat 6 to slide and adjust between the two guide shafts 12 through the two sliding rods 9, and the outer side of the sleeve 8 can be moved between the two positioning rubber pads 19 opposite to each other on the inner side of the adjustment groove 18, so as to quickly locate the current moving position of the ultrasonic detection head 7, thereby improving the synchronous movement and adjustment of the two ultrasonic detection heads 7.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A gap depth measuring device for highway survey, characterized in that: The invention comprises an operation box (1), wherein a display screen (2) is fixedly mounted on the operation box (1), an observation port (3) is provided on the operation box (1) located in front of the display screen (2), and first slide slots (4) are provided on the operation boxes (1) located on both sides of the observation port (3), a butt joint plate (5) is fixedly mounted on the lower end of the operation box (1), two guide shafts (12) are fixedly mounted inside the operation box (1), two adjustment seats (6) are arranged between the two guide shafts (12), an ultrasonic detection head (7) is fixedly mounted on the middle part of the lower end of the two adjustment seats (6), a sleeve (8) is fixedly mounted on the middle part of the upper end of the adjustment seat (6), two slide bars (9) are movably mounted inside the adjustment seat (6), and the adjustment seat (6) is movably mounted between the two guide shafts (12) via the two slide bars (9), and two adjustment plates (10) are movably mounted on the operation box (1).

2. A gap depth measuring device for highway surveying according to claim 1, characterized in that: Handles (11) are fixedly mounted on both sides of the operation box (1), and a plurality of control buttons (23) are movably mounted on the operation box (1), wherein the control buttons (23) are electrically connected to a main control panel in the operation box (1) via connecting wires.

3. A gap depth measuring device for highway surveying according to claim 1, characterized in that: Second sliding grooves (22) are provided on both sides of the display screen (2), and the display screen (2) is electrically connected to a main control board in the operation box (1) via a connecting line.

4. A gap depth measuring device for highway surveying according to claim 1, characterized in that: The seam plates (5) are made of transparent acrylic material.

5. The gap depth measuring device for highway surveying according to claim 3, characterized in that: The adjusting seat (6) is provided with two mounting grooves (13), and the bottom of the mounting groove (13) is provided with two countersunk holes (14). A connecting screw (15) is inserted and installed in the countersunk holes (14). The sliding rod (9) is provided with a sliding hole (17). The sliding rod (9) is inserted and installed in the mounting groove (13), and one end of the countersunk hole (14) is also threadedly connected to the lower end of the sliding rod (9). The countersunk hole (14) located at the bottom of the sliding rod (9) and the mounting groove (13) is sleeved with a compression spring (16), and the sliding hole (17) is inserted and connected to the guide shaft (12), that is, the adjusting seat (6) is slidably connected between the two guide shafts (12) through the two sliding rods (9), and the upper end of the sleeve (8) passes through the corresponding first sliding groove (4) and extends to the upper part of the operation box (1).

6. A crack depth measuring device for highway surveying according to claim 5, characterized in that: An oblique adjustment groove (18) is provided in the adjustment plate (10), and a plurality of positioning rubber pads (19) are fixedly installed on both sides of the adjustment groove (18). A sliding block (20) is fixedly installed on opposite sides of the two adjustment plates (10), and a connecting rod (21) is fixedly connected between the two adjustment plates (10). The adjustment groove (18) is inserted into the outside of the corresponding sleeve (8), and the sliding block (20) is slidably connected in the corresponding second sliding groove (22).

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