Adjustable road and bridge asphalt pavement crack detection device

Abstract

The utility model discloses an adjustable road bridge asphalt pavement crack detection device belongs to bridge pavement detection equipment technical field, including support frame, and electric property connection's host computer and probe, support frame includes bottom plate, support rod and adjusting seat, the bottom plate is rectangular structure, and the bottom four all around of bottom plate is equipped with gyro wheel, and the probe is fixed in the bottom plate, and the support rod is perpendicular to connect with the bottom plate, and the support rod interval sets up 2, and the adjusting seat includes the sliding sleeve of sliding sleeve of two side support rods, and is equipped with the connecting rod between two side sliding sleeve, and the connecting rod is equipped with the sleeve, and the host computer is connected with the sleeve, and is equipped with the tight screw between sliding sleeve and support rod, and the tight screw is used for fixing the position of sliding sleeve on the support rod. The utility model discloses a bottom plate of rectangular structure forms stable fixed to the probe, adjusts the height position of connecting seat, and the use demand of accurate adaptation different height operating personnel is required, and the convenience and the comfort of operation are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge pavement testing equipment, and specifically relates to an adjustable road and bridge asphalt pavement crack detection device. Background Technology

[0002] In the routine maintenance and inspection of roads and bridges, the detection of asphalt pavement cracks is a crucial step in assessing the safety and service life of the pavement structure. During inspection, a portable pavement crack detector is needed to measure data such as crack width and depth.

[0003] Chinese utility model patent (CN220013302U) discloses a road and bridge asphalt pavement crack detection device. In this patent, the probe and main unit of the portable pavement crack detector are fixed on the connecting rod. When using it, the operator does not need to squat down. The anti-slip sleeve part is held and the probe is pushed along the ground surface by the connecting rod and roller to detect cracks.

[0004] Existing technologies still have some shortcomings:

[0005] 1. The handheld linkage is prone to shaking during the pushing process, making it difficult to maintain a fixed probe angle, which can easily lead to deviations in data acquisition and affect the accuracy of the data;

[0006] 2. Due to the inherent structure of the linkage, it requires continuous support from the operator, which is not conducive to the operator's operation of the main unit;

[0007] 3. Due to differences in operator height, the tilt angle of the connecting rod varies during use. It is necessary to repeatedly calibrate the perpendicularity of the probe to the road surface to ensure measurement accuracy, which not only prolongs the operation time but also increases the complexity of operation. Utility Model Content

[0008] The purpose of this invention is to provide an adjustable road and bridge asphalt pavement crack detection device, which aims to solve the problems existing in the prior art mentioned above.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] An adjustable asphalt pavement crack detection device for roads and bridges includes a support frame, a main unit and a probe electrically connected thereto. The support frame includes a base plate, support rods and an adjustment seat. The base plate has a rectangular structure and rollers are provided around its bottom perimeter. The probe is fixed to the base plate. The support rods are perpendicularly connected to the base plate and are spaced apart. The adjustment seat includes sliding sleeves that are slidably fitted onto the support rods on both sides. A connecting rod is provided between the two sliding sleeves. The connecting rod has a retaining sleeve, and the main unit engages with the retaining sleeve. A set screw is provided between the sliding sleeve and the support rod, and the set screw is used to lock the position of the sliding sleeve relative to the support rod.

[0011] Furthermore, the connecting rod is fitted with an adjusting sleeve that is rotatably connected to it, the ferrule is fixedly connected to the adjusting sleeve, the adjusting sleeve is used to adjust the tilt angle of the ferrule, and a positioning mechanism is provided between the adjusting sleeve and the connecting rod, the positioning mechanism is used to fix the relative position of the adjusting sleeve and the connecting rod.

[0012] Furthermore, the positioning mechanism includes a positioning sleeve fitted onto the connecting rod. A groove is provided on the surface of the connecting rod along its axial direction. A slider that is slidably connected to the groove is provided on the inner side of the positioning sleeve. A first annular plate is provided on the edge of the adjusting sleeve. A plurality of positioning holes are evenly distributed around the circumference of the adjusting sleeve on the first annular plate. A second annular plate is provided on the positioning sleeve. A plurality of positioning pins are evenly distributed around the circumference of the positioning sleeve on the second annular plate. The number and position of the positioning pins are adapted to the positioning holes. The positioning pins are used to insert into the positioning holes to limit the position of the adjusting sleeve.

[0013] Furthermore, the support rod surface is provided with a groove along its axial direction, and multiple threaded holes are evenly spaced in the groove. The sliding sleeve is provided with a corresponding through hole, and the set screw passes through the through hole and is threadedly connected to the corresponding threaded hole.

[0014] Furthermore, a handrail is provided on the outer side of the sliding sleeve.

[0015] Furthermore, a through slot is formed in the center of the base plate, and the probe is installed in the slot.

[0016] Compared with the shortcomings and deficiencies of the prior art, the present invention has the following beneficial effects.

[0017] 1. This utility model uses a rectangular base plate to stably fix the probe, ensuring that the probe's angle and position remain constant and preventing angle deviation caused by hand shaking. The overall support frame structure relies on the coordinated support of the rectangular base plate and double support rods to form a more stable force-bearing system, effectively reducing device shaking caused by operators during operation. The main unit is stably installed through an adjustable seat, and the height of the connecting seat can be flexibly adjusted using the set screw and support rods to precisely adapt to the usage needs of operators of different heights, greatly improving the convenience and comfort of operation.

[0018] 2. The adjusting base is equipped with an adjusting sleeve that can rotate relative to the connecting rod. The main unit is fixedly connected to the adjusting sleeve via a clamp. The operator can flexibly adjust the tilt angle of the main unit by rotating the adjusting sleeve. At the same time, with the cooperation of the positioning sleeve and the adjusting sleeve, the adjusted angle position can be stably fixed. This allows the operator to adjust to a more comfortable and convenient operating posture according to their own habits and outdoor lighting conditions, which not only improves the comfort of operation but also facilitates clear reading of the main unit data. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the crack detection device of this utility model.

[0020] Figure 2 This is a three-dimensional structural diagram of the adjustment seat in this utility model.

[0021] Figure 3 This is a schematic diagram of the positioning sleeve in this utility model.

[0022] Figure 4 This is a cross-sectional view of the positioning sleeve in this utility model.

[0023] Figure 5 This is a schematic diagram of the connection structure between the adjusting seat and the support rod in this utility model.

[0024] Figure 6 This is a cross-sectional view of the connection structure between the sliding sleeve and the support rod in this utility model.

[0025] In the diagram: 110, probe; 120, main unit; 211, base plate; 212, roller; 213, bracket; 214, slot; 215, support rod; 2151, groove; 2152, threaded hole; 220, adjusting seat; 221, sliding sleeve; 2211, through hole; 2212, set screw; 222, connecting rod; 2221, slide groove; 223, adjusting sleeve; 2231, first annular plate; 2232, positioning hole; 224, ferrule; 225, handrail; 226, positioning sleeve; 2261, second annular plate; 2262, positioning pin; 2263, slider. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] Reference Figure 1 This utility model discloses an adjustable road and bridge asphalt pavement crack detection device, including an adjustable support frame and a crack detection device. The crack detection device is prior art and is the same as the portable pavement crack detector in the prior art (CN220013302U) Chinese utility model patent. It has a main unit 120 and a probe 110. The crack detection device is installed on the support frame, and the height of the main unit 120 is adjusted by the support frame, so as to facilitate the use of operators of different heights.

[0028] The support frame includes a base plate 211, support rods 215, and an adjusting seat 220. The base plate 211 has a rectangular structure, with four sets of rollers 212 at the right angles of its bottom surface. The rollers 212 are self-locking rollers. The support rods 215 are vertically connected to the top surface of the base plate 211. Two support rods 215 are provided and symmetrically arranged on both sides of the center line of the top surface of the base plate 211. The base plate 211 has a through slot 214 in the center, located between the two support rods 215. A bracket 213 for mounting the probe 110 is provided in the slot 214.

[0029] Reference Figure 2 The adjusting base 220 includes a connecting rod 222, with sliding sleeves 221 at both ends. The sliding sleeves 221 are slidably fitted onto a support rod 215. A set screw 2212 is provided between the sliding sleeve 221 and the support rod 215 to fix the relative position of the sliding sleeve 221 on the support rod 215. A retaining sleeve 224 is provided on the connecting rod 222 to secure the main unit 120. By adjusting the height of the adjusting base 220, the height of the main unit 120 can be adjusted to accommodate operators of different heights.

[0030] A handle 225 is provided on the outside of the sliding sleeve 221, and the operator can push the crack detection device through the handle 225.

[0031] In one embodiment, an adjusting sleeve 223 is sleeved in the center of the connecting rod 222. The adjusting sleeve 223 is rotatably connected to the connecting rod 222. The retaining sleeve 224 is fixedly connected to the adjusting sleeve 223. Rotating the adjusting sleeve 223 adjusts the tilt angle of the retaining sleeve 224, that is, adjusts the tilt angle of the host 120, so that the operator can operate the host 120 more conveniently and comfortably.

[0032] Reference Figure 5 A positioning mechanism is provided between the adjusting sleeve 223 and the connecting rod 222. The positioning mechanism is used to fix the position of the adjusting sleeve 223 after rotation. (Ref) Figure 3 and Figure 4 The positioning mechanism includes a positioning sleeve 226, which is sleeved on the connecting rod 222. A second annular plate 2261 is provided at one end of the positioning sleeve 226 near the adjusting sleeve 223. A positioning pin 2262 is provided on the side of the second annular plate 2261 facing the adjusting sleeve 223. Multiple positioning pins 2262 are evenly distributed around the circumference of the positioning sleeve 226. Correspondingly, (refer to...) Figure 2The adjusting sleeve 223 has a first annular plate 2231 at its end, which is perpendicular to the axis of the adjusting sleeve 223. The first annular plate 2231 has positioning holes 2232, which are evenly distributed around the circumference of the adjusting sleeve 223. The number of positioning holes 2232 is the same as the number of positioning pins 2262, and their positions correspond. Multiple positioning holes 2232 facilitate multi-angle adjustment of the adjusting sleeve 223.

[0033] The upper part of the connecting rod 222 is provided with a sliding groove 2221 along its axial direction, and the inner side of the positioning sleeve 226 is provided with a corresponding slider 2263, which slides in conjunction with the sliding groove 2221. Moving the positioning sleeve 226 along the sliding groove 2221 separates the positioning pin 2262 from the positioning hole 2232, making it easy to rotate and adjust the angle position of the adjusting sleeve 223, that is, the tilt angle of the main unit 120.

[0034] In one embodiment, refer to Figure 6 The support rod 215 has a strip groove 2151 along its axial direction on its surface. Multiple threaded holes 2152 are evenly spaced in the strip groove 2151. The set screw 2212 is threadedly connected to the threaded hole 2152 to improve the stability of the connection between the adjusting seat 220 and the support rod 215.

[0035] The working principle of this adjustable road and bridge asphalt pavement crack detection device:

[0036] The portable road crack detector is installed on the support frame, and the probe 110 is fixed in the slot 214 in the center of the base plate 211 through the bracket 213, ensuring that the detection end of the probe 110 is facing down and perpendicular to the road surface; after the main unit 120 is connected to the probe 110 through the cable, it is snapped and fixed in the sleeve 224 of the adjusting seat 220.

[0037] The height of the main unit 120 is adjusted by loosening the set screw 2212 on the sliding sleeve 221 according to the operator's height, allowing the sliding sleeve 221 to slide up and down along the support rod 215, thus driving the main unit 120 to rise and fall synchronously. Once the height of the main unit 120 is suitable for the operator's line of sight, the set screw 2212 is passed through the through hole 2211 of the sliding sleeve 221, tightened, and embedded into the corresponding threaded hole 2152 in the groove 2151 of the support rod 215, thus achieving a stable fixation between the adjusting seat 220 and the support rod 215, ensuring that the height of the main unit 120 no longer changes.

[0038] The angle adjustment of the main unit 120 can push the positioning sleeve 226 to move away from the adjusting sleeve 223 along the slide groove 2221 of the connecting rod 222, causing the positioning pin 2262 on the second annular plate 2261 to disengage from the positioning hole 2232 of the first annular plate 2231 of the adjusting sleeve 223. At this time, rotating the adjusting sleeve 223 will drive the main unit 120 to rotate synchronously to a suitable tilt angle, and then push the positioning sleeve 226 in the opposite direction to re-insert the positioning pin 2262 into the corresponding positioning hole 2232, thus completing the angle fixation.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable road and bridge asphalt pavement crack detection device, comprising a support frame, and an electrically connected main unit (120) and probe (110), characterized in that, The support frame includes a base plate (211), support rods (215), and an adjusting seat (220). The base plate (211) has a rectangular structure and rollers (212) are provided around the bottom of the base plate (211). The probe (110) is fixed to the base plate (211). The support rods (215) are vertically connected to the base plate (211) and are spaced apart in twos. The adjusting seat (220) includes a sliding sleeve (221) that is slidably fitted onto the two side support rods (215). A connecting rod (222) is provided between the two side sliding sleeves (221). The connecting rod (222) is provided with a retainer (224). The main unit (120) is engaged with the retainer (224). A set screw (2212) is provided between the sliding sleeve (221) and the support rod (215). The set screw (2212) is used to lock the position of the sliding sleeve (221) relative to the support rod (215).

2. The crack detection device as described in claim 1, characterized in that, The connecting rod (222) is fitted with an adjusting sleeve (223) that is rotatably connected to it. The retaining sleeve (224) is fixed to the adjusting sleeve (223). The adjusting sleeve (223) is used to adjust the tilt angle of the retaining sleeve (224). A positioning mechanism is provided between the adjusting sleeve (223) and the connecting rod (222). The positioning mechanism is used to fix the relative position of the adjusting sleeve (223) and the connecting rod (222).

3. The crack detection device as described in claim 2, characterized in that, The positioning mechanism includes a positioning sleeve (226) sleeved on the connecting rod (222). The surface of the connecting rod (222) is provided with a groove (2221) along its axial direction. The inner side of the positioning sleeve (226) is provided with a slider (2263) that is slidably connected to the groove (2221). The edge of the adjusting sleeve (223) is provided with a first annular plate (2231). The first annular plate (2231) is evenly provided with a plurality of positioning holes (2232) around the circumference of the adjusting sleeve (223). The positioning sleeve (226) is provided with a second annular plate (2261). The second annular plate (2261) is evenly provided with a plurality of positioning pins (2262) around the circumference of the positioning sleeve (226). The number and position of the positioning pins (2262) are adapted to the positioning holes (2232). The positioning pins (2262) are used to insert into the positioning holes (2232) to limit the position of the adjusting sleeve (223).

4. The crack detection device as described in claim 1, characterized in that, The support rod (215) has a groove (2151) along its axial direction on its surface. Multiple threaded holes (2152) are evenly spaced in the groove (2151). The sliding sleeve (221) has a corresponding through hole (2211). The set screw (2212) passes through the through hole (2211) and is threaded to the corresponding threaded hole (2152).

5. The crack detection device as described in claim 1, characterized in that, The sliding sleeve (221) is provided with a handrail (225) on the outside.

6. The crack detection device as described in claim 1, characterized in that, The base plate (211) has a through slot (214) in the center, and the probe (110) is installed in the slot (214).

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