An asphalt pavement crack detection device

Abstract

The utility model provides a kind of asphalt pavement crack detection device, it is related to road engineering detection technical field, comprising: mobile main body, the both sides position of mobile main body is respectively equipped with moving wheel, the upper position of mobile main body is equipped with protective shell, the inboard position of protective shell is equipped with fan, controller, and the corner of fan is equipped with bolt mounting hole. The cooperation of setting locking frame and stabilizing rod quickly locks sealing cover, controller, after stretching locking frame, the quick unlocking of sealing cover, controller can be completed, the dismounting time of sealing cover and controller is shortened to within ten seconds, the quick overhaul of controller is convenient, solve the problem that controller and sealing cover are locked by bolt.

Description

Technical Field

[0001] This utility model relates to the field of road engineering testing technology, and in particular to an asphalt pavement crack detection device. Background Technology

[0002] In road infrastructure construction and maintenance, asphalt pavement is widely used due to its good comfort, skid resistance, and ease of construction. However, with the continuous increase in traffic flow, the increasing vehicle load, and the long-term effects of natural environmental factors, asphalt pavement inevitably develops cracks and other defects. Therefore, major and medium-sized repairs of asphalt pavement are necessary. Before these repairs, crack detection of the asphalt pavement is required. However, traditional crack detection devices still have the following problems:

[0003] The controller and sealing cover of the existing device are mostly fixed with bolts, which is time-consuming and laborious to disassemble and assemble. Moreover, it requires the use of disassembly tools such as screwdrivers. Under the tight schedule requirements of major and medium-sized maintenance, the traditional disassembly and assembly methods cannot meet the needs of rapid maintenance. In addition, the bolts are prone to stripping due to vibration, which can lead to the failure of the device's seal and cause the controller to collide.

[0004] Traditional scanners are mostly mounted on fixed brackets at the bottom of the inspection vehicle, and bolts are needed to secure the scanner's mounting position. When there are ruts, potholes, or unevenness in the road section where major and medium repairs are carried out, the distance or angle between the inspection probe and the road surface will be offset. In addition, it also reduces the convenience of disassembling and assembling the scanner. Utility Model Content

[0005] This utility model relates to an asphalt pavement crack detection device. When the connecting plate is pulled upward, the second locking rods on both sides are disengaged from the locking seat. At this time, the scanner can rotate around the hinge point. According to the pavement detection requirements, such as the direction of the crack, the tilt angle of the scanner can be adjusted. When the connecting plate is released, the second locking rod moves downward under the action of the support spring, so that the locking block at the bottom of the second locking rod engages with the locking groove, thus completing the angle locking of the scanner.

[0006] This utility model provides an asphalt pavement crack detection device, specifically comprising: a mobile main body, a set of moving wheels installed on each of the two sides of the mobile main body, a protective shell installed on the top of the mobile main body, a fan and a controller installed on the inner side of the protective shell, a set of bolt mounting holes opened at the corner of the fan, a sealing cover installed on the top of the protective shell, a locking frame installed on the top of the controller and the sealing cover, a positioning frame installed on the bottom of the mobile main body, a hinged scanner installed on one side of the positioning frame, a second locking rod installed on each of the two sides of the scanner, a connecting plate installed between the two second locking rods, the second locking rods and the connecting plate cooperating to form an angle locking structure, and a drainage shell installed on the top of the scanner.

[0007] Furthermore, a filter screen is installed on one side of the protective housing.

[0008] Furthermore, a set of mounting holes corresponding to the second stabilizing rod are opened at the corner of the controller, and the second stabilizing rod passes through the interior of the mounting holes.

[0009] Furthermore, a set of vertical first stabilizing rods is provided at the corner of the inner side of the protective housing, and a mounting hole corresponding to the first stabilizing rod is opened at the corner of the sealing cover, and the first stabilizing rod passes through the interior of the mounting hole.

[0010] Furthermore, an annular groove is formed above the first and second stabilizing rods respectively, and a set of locking blocks is provided on the inner side of the locking frame. The locking blocks have an arc structure and extend into the interior of the annular groove.

[0011] Furthermore, a positioning rod is provided on one side of the locking frame, and an ear plate is provided on the outer side of the sealing cover and the controller respectively. A sliding hole is opened above the ear plate, the positioning rod passes through the interior of the sliding hole, and a support spring is installed on the outer side of the positioning rod.

[0012] Furthermore, an air outlet sleeve is provided on one side of the protective housing, which is connected to the interior of the protective housing and aligned with the fan. An air inlet sleeve is provided above the drainage housing, which is connected to the interior of the drainage housing. An exhaust hole is opened at the bottom of the drainage housing, which is aligned with the edge of the scanner.

[0013] Furthermore, a sliding hole is provided at the bottom of the protective housing, and a first horizontal locking rod is inserted inside the sliding hole. A retaining ring is provided on one side of the first locking rod, and a support spring is installed on one side of the retaining ring.

[0014] Furthermore, a positioning groove is formed at the bottom of the protective housing. The positioning groove has a rectangular structure. The upper part of the positioning frame extends into the interior of the positioning groove. A locking groove corresponding to the first locking rod is formed at the upper part of the positioning frame. One side of the first locking rod extends into the interior of the locking groove.

[0015] Furthermore, a locking seat is provided on each side of the positioning frame, and a set of locking grooves distributed in a circular array are opened on the outer edge of the locking seat. The locking grooves are rectangular. A set of locking blocks are provided at the bottom of the second locking rod. The locking blocks are rectangular. The locking grooves and locking blocks are engaged. A support spring is installed on the outer side of the second locking rod.

[0016] Furthermore, the scanner is provided with a positioning ear plate on each side, a sliding hole is opened on one side of the positioning ear plate, a vertical second locking rod is inserted inside the sliding hole, an annular groove is opened above the second locking rod, and a slot is opened on each side of the connecting plate, the slot and the annular groove corresponding to each other.

[0017] This utility model provides an asphalt pavement crack detection device, which has the following beneficial effects:

[0018] In this invention, a fan installed inside the protective housing generates negative pressure. Outside air enters the housing after being filtered by a filter screen, which dissipates heat from the controller. The filter screen can intercept dust particles in the air, preventing dust accumulation from affecting the lifespan of electronic components and extending the service life of the controller.

[0019] The locking bracket and stabilizing rod work together to quickly lock the sealing cover and controller. Pulling the locking bracket allows for quick unlocking of the sealing cover and controller, reducing the disassembly and assembly time of the sealing cover and controller to less than ten seconds. This facilitates rapid maintenance of the controller and solves the problem of locking the controller and sealing cover with bolts.

[0020] The scanner can be adjusted to any angle through an angle locking structure. Pulling up the connecting plate unlocks the scanner, and releasing it after adjusting the angle allows the scanner to be quickly locked by the locking block. This design can adapt to different road surface morphologies such as ruts and potholes during major and medium repairs, ensuring that the scanner is perpendicular to the crack surface.

[0021] The first locking lever, in conjunction with a spring, quickly locks the installation position of the positioning frame. The operator can unlock the positioning frame by pulling the first locking lever outward, at which point the positioning frame and scanner can be quickly assembled and disassembled.

[0022] The airflow generated by the fan is delivered to the airflow housing through the airflow tube. While cooling the controller, the airflow is also delivered to the airflow housing through the airflow tube. The exhaust port at the bottom of the airflow housing is aligned with the scanner surface. The airflow blows away the adhering dust, ensuring that the scanning lens is clear and avoiding missed detection of cracks caused by dirt. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0024] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0025] In the attached diagram:

[0026] Figure 1 A schematic diagram of the axial structure of the crack detection device of this utility model after assembly is shown;

[0027] Figure 2 This utility model illustrates Figure 1 A schematic diagram of the axonal structure from an elevation viewpoint;

[0028] Figure 3 This diagram shows the axial structure of the present invention after the sealing cover has been removed;

[0029] Figure 4 A schematic diagram of the internal axial structure of the protective housing of this utility model is shown;

[0030] Figure 5 The diagram shows a bottom-view axial side view of the cross-sectional structure of the protective shell of this utility model;

[0031] Figure 6 A schematic diagram of the axial structure of the protective shell and the drainage shell of this utility model is shown in cross-section.

[0032] Figure 7 A schematic diagram of the axial structure of the positioning frame and locking seat of this utility model is shown in cross section.

[0033] Figure 8 This utility model illustrates Figure 7 A magnified structural diagram at point A.

[0034] List of reference numerals

[0035] 1. Moving subject;

[0036] 2. Protective housing; 201. First stabilizing rod; 202. Second stabilizing rod; 203. Filter screen; 204. First locking rod;

[0037] 3. Fan;

[0038] 4. Controller;

[0039] 5. Sealing cap;

[0040] 6. Locking bracket; 601. Positioning rod;

[0041] 7. Positioning bracket; 701. Locking seat;

[0042] 8. Scanner;

[0043] 9. Angle locking structure; 901. Second locking rod; 902. Connecting plate;

[0044] 10. Drainage shell. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0046] Example 1: Please refer to Figures 1 to 8 :

[0047] This utility model proposes an asphalt pavement crack detection device, comprising: a movable body 1, with a set of movable wheels installed on each of the two sides of the movable body 1; a protective shell 2 installed on the top of the movable body 1; a fan 3 and a controller 4 installed inside the protective shell 2; the specific models of the fan 3 and controller 4 are selected according to actual needs, and the fan 3 and controller 4 are electrically connected according to the wiring structure of the prior art; a filter screen 203 is installed on one side of the protective shell 2; when the fan 3 rotates, it generates negative pressure, at which time the external air passes through the filter screen 203 and enters the interior of the protective shell 2 to dissipate heat from the controller 4; the filter screen 203 removes pollutants from the air. Large particles and dust are blocked. A set of mounting holes corresponding to the second stabilizing rod 202 are opened at the corner of the controller 4. The second stabilizing rod 202 passes through the inside of the mounting holes and quickly positions the controller 4. A sliding hole is opened at the bottom of the protective housing 2. A horizontal first locking rod 204 is inserted into the sliding hole. The sliding hole supports and positions the movement of the first locking rod 204, so that the first locking rod 204 can move up and down stably in the position of the sliding hole. A retaining ring is provided on one side of the first locking rod 204, and a support spring is installed on one side of the retaining ring. With the cooperation of the retaining ring, the support spring pushes the first locking rod 204 to reset inward.

[0048] In this embodiment, a set of bolt mounting holes are opened at the corner of the fan 3. The bolt mounting holes are positioned according to actual needs to install matching bolts. After the bolts are installed, the mounting position of the fan 3 is stabilized. A sealing cover 5 is installed on the upper part of the protective housing 2. After the sealing cover 5 is installed, the upper part of the protective housing 2 is sealed. A set of vertical first stabilizing rods 201 are provided at the corner of the inner side of the protective housing 2. A mounting hole corresponding to the first stabilizing rod 201 is opened at the corner of the sealing cover 5. The first stabilizing rod 201 passes through the inside of the mounting hole.

[0049] In this embodiment, a locking frame 6 is installed above the controller 4 and the sealing cover 5, respectively. An annular groove is formed above the first stabilizing rod 201 and the second stabilizing rod 202. A set of locking blocks with an arc structure is provided on the inner side of the locking frame 6, extending into the annular groove. The locking frame 6, in conjunction with the locking blocks, quickly and securely positions the sealing cover 5 and the controller 4. A positioning rod 601 is provided on one side of the locking frame 6. An ear plate is provided on the outer side of the sealing cover 5 and the controller 4, respectively. A sliding hole is formed above the ear plate. Positioning rod 601 passes through the interior of the sliding hole. Ear plate, in conjunction with positioning rod 601, positions locking frame 6 vertically. A support spring is installed on the outer side of positioning rod 601. The support spring pushes locking frame 6 to reset, quickly locking the installation positions of sealing cover 5 and controller 4. Pulling positioning rod 601 to one side moves locking frame 6 until sealing cover 5 and controller 4 unlock. At this point, sealing cover 5 and controller 4 can quickly complete the disassembly and assembly steps. A positioning frame 7 is installed at the bottom of moving body 1. A hinged scanner 8 is installed on one side of positioning frame 7. The scanner 8... Select a standard road crack detection model according to actual needs. A positioning groove with a rectangular structure is opened at the bottom of the protective housing 2. The upper part of the positioning frame 7 extends into the positioning groove, which positions the installation position of the positioning frame 7. A locking groove corresponding to the first locking rod 204 is opened at the upper part of the positioning frame 7. One side of the first locking rod 204 extends into the locking groove. The first locking rod 204, in conjunction with a spring, quickly locks the installation position of the positioning frame 7. The operator can complete the positioning by pulling the first locking rod 204 outwards. 7 is unlocked. At this time, the positioning frame 7 can be quickly disassembled and assembled. On one side of the positioning frame 7, there is a locking seat 701 on each side. The edge of the locking seat 701 is provided with a set of locking grooves distributed in a ring array. The locking grooves are rectangular. The bottom of the second locking rod 901 is provided with a set of locking blocks. The locking blocks are rectangular. The locking grooves and locking blocks engage. A support spring is installed on the outer side of the second locking rod 901. The support spring presses the second locking rod 901 downward, so that the second locking rod 901 cooperates with the locking blocks to lock the angle of the scanner 8.

[0050] In this embodiment, a second locking rod 901 is installed on each side of the scanner 8, and a connecting plate 902 is installed between the two second locking rods 901. The second locking rods 901 and the connecting plate 902 cooperate to form an angle locking structure 9. A flow-guiding housing 10 is installed above the scanner 8. An air outlet sleeve is provided on one side of the protective housing 2, and the air outlet sleeve is connected to the interior of the protective housing 2. The air outlet sleeve is aligned with the fan 3, so the air outlet sleeve can concentrate the airflow generated by the fan 3. An air inlet sleeve is provided above the flow-guiding housing 10, and the air inlet sleeve is connected to the interior of the flow-guiding housing 10. A flow-guiding pipe is installed between the air outlet sleeve and the air inlet sleeve according to actual needs and with reference to existing technology. The material of the flow-guiding pipe is selected to be flexible. After the flow-guiding pipe is installed, the fan 3 can deliver airflow to the interior of the flow-guiding housing 10. An exhaust hole is opened at the bottom of the flow-guiding housing 10, and the exhaust hole is aligned with the edge of the scanner 8. Therefore, the airflow inside the flow-guiding housing 10... The scanner 8 can blow away dust and impurities adhering to its surface, allowing it to better scan and detect cracks in asphalt pavement. Each side of the scanner 8 has a positioning ear plate with a sliding hole on one side. A vertical second locking rod 901 is inserted through the sliding hole. The positioning ear plate, in conjunction with the sliding hole, positions the second locking rod 901 laterally, allowing it to move vertically up and down. An annular groove is located above the second locking rod 901. A slot is located on each side of the connecting plate 902, corresponding to the annular groove. Therefore, the connecting plate 902 can stably connect the two second locking rods 901. Pulling the connecting plate 902 upwards causes the two second locking rods 901 to move synchronously, unlocking the scanner 8. The scanner 8 can be adjusted to a suitable angle as needed. After stopping the pulling of the connecting plate 902, the second locking rods 901 move downwards to reset, quickly locking the scanner 8. This achieves convenient angle adjustment and locking of the scanner 8.

[0051] Example 2, based on Example 1, such as Figures 1-6 As shown, a power supply and control module need to be installed inside the mobile body 1, and the power supply, control module and controller 4 are electrically connected. The controller 4 and fan 3 are electrically connected in accordance with the prior art, so that the whole device, together with the power supply and module, forms an asphalt pavement crack detection device.

[0052] The working principle of this embodiment:

[0053] First, place the mobile body 1 on the section of road to be inspected, adjust the moving wheels to a stable state, and make the positioning groove at the bottom of the protective housing 2 cooperate with the positioning frame 7. Push the positioning frame 7 into the positioning groove of the protective housing 2, and the first locking rod 204 resets and locks the positioning frame 7 through the support spring, thus completing the installation of the positioning frame 7.

[0054] The scanner 8 is adjusted and locked by lifting the connecting plate 902 upwards, which causes the second locking rods 901 on both sides to disengage from the locking seat 701. At this time, the scanner 8 can rotate around the hinge point. According to the road surface inspection requirements, such as the direction of cracks, the tilt angle of the scanner 8 is adjusted. The connecting plate 902 is released, and the second locking rod 901 moves downwards under the action of the support spring, so that the locking block at the bottom of the second locking rod 901 engages with the locking groove, thus completing the angle locking of the scanner 8. The air outlet sleeve and the air inlet sleeve are connected through the bendable drainage pipe to ensure smooth airflow between the fan 3 and the drainage housing 10. The filter screen 203 is installed on the side of the protective housing 2. If necessary, the surface of the filter screen 203 is blown with compressed air. The power switch inside the moving body 1 is turned on to power the power supply and control module. The indicator light of the controller 4 lights up. This step is the conventional existing operation step.

[0055] When the controller 4 is activated, the fan 3 starts to generate negative pressure. Outside air enters the protective housing 2 through the filter screen 203 to dissipate heat for the controller 4. At the same time, airflow is delivered to the drainage housing 10 through the drainage pipe. The exhaust hole at the bottom of the drainage housing 10 is aligned with the surface of the scanner 8. The airflow blows away the adhering dust to ensure that the scanning lens is clear.

[0056] The mobile body 1 is driven along the road surface, and the scanner 8 transmits detection signals in real time to collect three-dimensional data on the road surface cracks and simultaneously record parameters such as the location, width, and length of the cracks. This step is a conventional existing operation procedure.

[0057] When the moving body 1 encounters a bumpy road surface, the angle of the scanner 8 can be temporarily adjusted to avoid detection errors caused by bumps.

[0058] Pull the positioning rod 601 to unlock the locking frame 6, remove the sealing cover 5, and clean the dust from the controller 4 and fan 3 inside the protective housing 2;

[0059] The scanner 8 is adjusted to a vertical position and fixed by the second locking rod 901 to prevent damage from shaking during transportation. Through the above steps, the device can efficiently complete the automated detection of cracks in asphalt pavement, providing accurate data support for major and medium-sized road repairs.

Claims

1. An asphalt pavement crack detection device, comprising: The mobile body (1), controller (4) and locking structure (9) are provided. The mobile body (1) is equipped with moving wheels on both sides. The mobile body (1) is equipped with a protective shell (2) on the top. A filter screen (203) is installed on one side of the protective shell (2). A fan (3) and controller (4) are installed on the inner side of the protective shell (2). A bolt mounting hole is provided at the corner of the fan (3). The protective shell (2) is equipped with a sealing cover (5) on the top. The controller (4) and the sealing cover (5) are equipped with locking frames (6) on the top. The mobile body (1) is equipped with a positioning frame (7) on the bottom. A hinged scanner (8) is installed on one side of the positioning frame (7). A second locking rod (901) is installed on both sides of the scanner (8). A connecting plate (902) is installed between the two second locking rods (901). The second locking rods (901) and the connecting plate (902) cooperate to form an angle locking structure (9). A drainage shell (10) is installed on the top of the scanner (8).

2. The asphalt pavement crack detection device according to claim 1, characterized in that, The controller (4) has a mounting hole at one corner corresponding to the second stabilizing rod (202), and the second stabilizing rod (202) passes through the interior of the mounting hole.

3. The asphalt pavement crack detection device according to claim 1, characterized in that, The protective housing (2) has a vertical first stabilizing rod (201) at the corner of the inner side. The sealing cover (5) has mounting holes corresponding to the first stabilizing rod (201) at the corner of the sealing cover (5). The first stabilizing rod (201) passes through the interior of the mounting hole.

4. The asphalt pavement crack detection device according to claim 3, characterized in that, The first stabilizing rod (201) and the second stabilizing rod (202) are respectively provided with annular grooves at their upper positions, and the locking frame (6) is provided with a locking block at its inner side. The locking block has an arc structure and extends into the interior of the annular groove.

5. The asphalt pavement crack detection device according to claim 1, characterized in that, The locking frame (6) has a positioning rod (601) on one side, and the outer sides of the sealing cover (5) and the controller (4) are respectively provided with ear plates. A sliding hole is opened at the top of the ear plate. The positioning rod (601) passes through the inside of the sliding hole, and a support spring is installed on the outer side of the positioning rod (601).

6. The asphalt pavement crack detection device according to claim 1, characterized in that, The protective housing (2) has an exhaust sleeve on one side, which is connected to the interior of the protective housing (2). The exhaust sleeve is aligned with the fan (3). An intake sleeve is provided above the flow housing (10), which is connected to the interior of the flow housing (10). An exhaust hole is opened at the bottom of the flow housing (10), which is aligned with the edge of the scanner (8).

7. The asphalt pavement crack detection device according to claim 1, characterized in that, A sliding hole is provided at the bottom of the protective housing (2), and a first locking rod (204) is inserted horizontally inside the sliding hole. A retaining ring is provided on one side of the first locking rod (204), and a support spring is installed on one side of the retaining ring.

8. The asphalt pavement crack detection device according to claim 1, characterized in that, The protective housing (2) has a positioning groove at its bottom. The positioning frame (7) extends into the positioning groove from its upper position. The positioning frame (7) has a locking groove corresponding to the first locking rod (204) from its upper position. One side of the first locking rod (204) extends into the locking groove.

9. The asphalt pavement crack detection device according to claim 1, characterized in that, The positioning frame (7) has locking seats (701) on both sides. The locking seats (701) have locking grooves arranged in a ring array on the outer edge. The bottom of the second locking rod (901) has a locking block. The locking groove and the locking block are engaged. A support spring is installed on the outer side of the second locking rod (901).

10. An asphalt pavement crack detection device according to claim 1, characterized in that, The scanner (8) is provided with positioning ear plates on both sides. A sliding hole is provided on one side of the positioning ear plate. A vertical second locking rod (901) is inserted inside the sliding hole. An annular groove is provided above the second locking rod (901). Slots are provided on both sides of the connecting plate (902).

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