Pavement construction quality detection device

Abstract

The invention belongs to the technical field of road quality detection, and particularly relates to a pavement construction quality detection device which comprises a detection frame and an operation table arranged on the left side of the detection frame, the inner wall of the right side of the detection frame is fixedly connected with a PLC, and the left side and the right side of the lower side wall of the detection frame are each fixedly connected with two rolling wheels. When the construction quality of the paved pavement is detected, the thickness of each functional layer of the paved pavement can be detected under the condition that a large hole is not formed in the paved pavement, so that the problems that the overall stress performance of the pavement is influenced by the large hole and the generation and development of diseases are accelerated are solved, and the construction quality of the paved pavement is improved. And the service life of the paved pavement is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of road quality detection, and in particular relates to a device for detecting the construction quality of a paved road surface. Background Art

[0002] Paved road surface refers to a road surface structure layer with certain strength and stability paved with various materials on the road base, such as asphalt pavement, cement concrete pavement, etc. After the construction of the paved road surface is completed, core drilling detection is required to deeply understand the actual conditions of the materials of each structural layer of the road surface and evaluate the construction quality and performance. For example, a paved road surface construction quality detection device is proposed in patent announcement number CN115854826B.

[0003] When the existing detection device uses the core drilling method to detect the quality of paved roads, the core drilling process requires drilling core samples from the road surface, which will inevitably leave large holes in the road surface and destroy the original continuous structure of the road surface. Especially for high-grade highways or roads with large traffic volume, this damage will affect the overall stress performance of the road surface and accelerate the occurrence and development of diseases. For example, after core sampling on the driving lane of a highway, stress concentration is prone to occur around the hole under the repeated action of vehicle loads, which in turn causes cracks and other diseases. Even if the hole is repaired with a repair material, if the repair material does not match the original road material in terms of thermal expansion coefficient, elastic modulus and other properties, and the hole area is large, under the action of temperature changes and vehicle loads, stress concentration is generated at the repair interface due to the incoordination of deformation, resulting in reflective cracks, reducing the smoothness and service life of the road surface.

[0004] Therefore, a pavement construction quality detection device is proposed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a device for detecting the construction quality of a paved road in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical scheme: a paved road construction quality detection device, comprising a detection frame and an operating table arranged on the left side of the detection frame, a PLC controller is fixedly connected to the right inner wall of the detection frame, two rollers are fixedly connected to the left and right sides of the lower side wall of the detection frame, and further comprising: A detection electric push rod is fixedly connected to the upper side wall of the detection frame, the moving end of the detection electric push rod passes through the detection frame and is fixedly connected to a lifting platform via a first pressure sensor, and a probe is fixedly connected to the lower side wall of the lifting platform; A lifting electric push rod is fixedly connected to the upper inner wall of the detection frame, a lifting plate is fixedly connected to the movable end of the lifting electric push rod, and three measuring components are fixedly connected to the upper side wall of the lifting plate for displaying the thickness of the pavement structure; A marking assembly, arranged on the upper side wall of the lifting plate, for marking areas where the pavement structure does not meet the standards; Two flatness detection components are arranged on the left and right sides of the lower side wall of the lifting plate and are used to measure the flatness of the road surface.

[0007] Preferably, the three measuring components all include a measuring box, and the three measuring boxes are all connected to the upper side wall of the lifting plate, the lower inner wall of the measuring box is fixedly connected to a sliding seat by a spring, the front side wall of the sliding seat is fixedly connected to a measuring block, the front side wall of the measuring block is provided with an index mark, the front side wall of the measuring box is provided with a first scale, the rear side wall of the sliding seat is provided with a placement groove, and the inner wall of the placement groove is fixedly connected to a small electric push rod, the moving end of the small electric push rod is connected to a friction block through a second pressure sensor, the right side wall of the lifting platform is fixedly connected to a square rod, the rear side wall of the square rod is fixedly connected to three pressure frames, the rear inner wall of the pressure frame is fixedly connected to a control box, the front inner wall of the control box is fixedly connected to an electromagnetic block, the rear side wall of the control box is plugged with a pressure frame, the front side wall of the pressure frame is fixedly connected to the rear inner wall of the control box by a spring, and the front side wall of the pressure frame is fixedly connected to a permanent magnet plate.

[0008] Preferably, the marking component includes a paint box fixedly connected to the side wall of the lifting plate, the inner wall of the paint box is fixedly connected to two partition plates, the two partition plates divide the interior of the paint box into three storage chambers, the lower side walls of the three storage chambers are fixedly connected with a discharge pipe, the lower end of the discharge pipe passes through the lifting plate and is fixedly connected with a nozzle, the interior of the discharge pipe is provided with a control valve and a normally open solenoid valve, the three measuring components are electrically connected to the corresponding normally open solenoid valves through a trigger component, the control valve is located above the normally open solenoid valve, and the upper side walls of the three storage chambers are fixedly connected with a discharge pipe. There is a pressurizing pipe fixedly connected, and an electromagnetic one-way valve is provided in the pressurizing pipe. The upper ends of the three pressurizing pipes are fixedly connected to the same cross pipe. The upper side wall of the cross pipe is fixedly connected to a telescopic airbag. The upper end of the telescopic airbag is fixedly connected to the upper inner wall of the detection frame. The upper side wall of the cross pipe is fixedly connected to an intake pipe, and a mechanical one-way valve is provided in the intake pipe. The upper side wall of the cross pipe is fixedly connected to an exhaust pipe, and a pressure valve is provided in the exhaust pipe. The upper side walls of the three storage chambers are all connected to air pressure sensors, and the air pressure sensors are electrically connected to the corresponding electromagnetic one-way valves through a PLC controller.

[0009] Preferably, the trigger assembly includes a conductive plate slidably arranged inside the measuring box, a sliding groove matching the conductive plate is provided on the rear inner wall of the measuring box, the conductive plate is slidably arranged in the sliding groove, a conductive frame is fixedly connected to the lower side wall of the sliding seat, the conductive frame is electrically connected to an external power supply, the conductive plate is electrically connected to a PLC controller, a bent plate is fixedly connected to the rear side wall of the conductive plate, a sliding opening matching the bent plate is provided on the side wall of the sliding groove, a threaded pin is fixedly connected to the rear side wall of the bent plate, a threaded cap is provided on the outer threaded sleeve of the threaded pin, a rubber ring is fixedly connected to the side wall of the threaded cap close to the measuring box, an adjustment mark is provided on the rear side wall of the threaded cap, and a second scale is provided on the rear side wall of the measuring box.

[0010] Preferably, the two flatness detection components include a detection box, and the two detection boxes are symmetrically installed on the left and right sides of the lower side wall of the lifting plate, the upper inner wall of the detection box is fixedly connected with a detection plate by a spring, the upper side wall of the detection plate is fixedly connected with a conduction frame, the conduction frame is electrically connected to an external power supply, the left side wall of the detection box is inlaid with two resistor plates, the ends of the two resistor plates away from each other are electrically connected to the PLC controller, the lower side wall of the detection plate is fixedly connected with a vertical rod, the lower end of the vertical rod extends out of the detection box and is fixedly connected with a detection wheel.

[0011] Preferably, a positioning plate is fixedly connected to the left side wall of the detection frame, a positioning electric push rod is fixedly connected to the lower side wall of the positioning plate, and a nail plate is fixedly connected to the movable end of the positioning electric push rod.

[0012] Preferably, a carrying plate is fixedly connected to the right side of the detection frame, a measuring electric push rod is fixedly connected to the lower side wall of the carrying plate, a wheeled distance meter is fixedly connected to the movable end of the measuring electric push rod, and the wheeled distance meter is electrically connected to the PLC controller.

[0013] Preferably, the lower side wall of the lifting plate is fixedly connected to a guide cylinder via a bracket, and the lower end of the probe passes through the guide cylinder.

[0014] Compared with the existing technology, the advantages of a paved road construction quality detection device are: Through the set measuring components, when inspecting the construction quality of the paved road surface, the thickness of each functional layer of the paved road surface can be inspected without drilling large holes in the paved road surface, thereby avoiding the problem that larger holes will affect the overall stress performance of the road surface and accelerate the occurrence and development of diseases, thereby extending the service life of the paved road surface.

[0015] By setting up the marking component, when the thickness of each functional layer of the paved road surface is detected by the detection device, if a functional layer that does not meet the standards is found, the non-standard functional layer can be marked in the detection area in time, so that the operator can record the unqualified sections later.

[0016] By setting up a flatness detection component, when the detection device is moved to the sampling location to detect the quality of the road section, the flatness of the moving path can be automatically detected, and after detecting uneven areas on the road surface, this situation can be recorded and displayed in time to facilitate subsequent maintenance by the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a pavement construction quality detection device provided by the present invention; Figure 2 It is a three-dimensional structural schematic diagram of a pavement construction quality detection device provided by the present invention; Figure 3 It is a partial front view of a measuring box in a pavement construction quality detection device provided by the present invention; Figure 4 It is a right side cross-sectional view of a measuring box in a pavement construction quality detection device provided by the present invention; Figure 5 The invention provides a pavement construction quality detection device Figure 4 A magnified schematic diagram of part A; Figure 6 It is a right side cross-sectional view of a pressure frame in a pavement construction quality detection device provided by the present invention; Figure 7 It is a partial rear view of a measuring box in a pavement construction quality detection device provided by the present invention; Figure 8 It is a schematic diagram of the internal structure of a detection box in a pavement construction quality detection device provided by the present invention; Fig. 9 It is a structural schematic diagram of a marking component in a pavement construction quality detection device provided by the present invention.

[0018] In the figure: 1 detection frame, 2 operating table, 3 PLC controller, 4 roller, 5 detection electric push rod, 6 lifting platform, 7 probe, 8 lifting electric push rod, 9 lifting plate, 10 measuring component, 101 measuring box, 102 sliding seat, 11 measuring block, 12 index mark, 13 first scale, 14 small electric push rod, 15 first pressure sensor, 16 friction block, 17 square rod, 18 pressure frame, 19 control box, 20 electromagnetic block, 21 pressure frame, 22 permanent magnetic plate, 23 marking component, 231 paint box, 232 partition plate, 24 storage chamber, 25 discharge pipe, 26 nozzle, 27 control valve, 28 normally open electromagnetic valve, 29 pressurized pipe, 3 0 electromagnetic one-way valve, 31 cross pipe, 32 telescopic airbag, 33 intake pipe, 34 mechanical one-way valve, 35 exhaust pipe, 36 pressure valve, 37 air pressure sensor, 38 trigger assembly, 381 conductive plate, 382 conductive frame, 39 sliding groove, 40 bending plate, 41 threaded pin, 42 threaded cap, 43 rubber ring, 44 adjustment mark, 45 second scale, 46 flatness detection assembly, 461 detection box, 462 detection plate, 47 conductive frame, 48 resistor plate, 49 vertical rod, 50 detection wheel, 51 positioning plate, 52 positioning electric push rod, 53 nail plate, 54 bearing plate, 55 measuring electric push rod, 56 wheel distance meter, 57 guide cylinder. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 1-Figure 9 As shown, a paved road construction quality detection device includes a detection frame 1 and an operating table 2 arranged on the left side of the detection frame 1, a PLC controller 3 is fixedly connected to the right inner wall of the detection frame 1, and two rollers 4 are fixedly connected to the left and right sides of the lower side wall of the detection frame 1, and also includes: The detection electric push rod 5 is fixedly connected to the upper side wall of the detection frame 1. The moving end of the detection electric push rod 5 passes through the detection frame 1 and is fixedly connected to the lifting platform 6 through the first pressure sensor 15. The lower side wall of the lifting platform 6 is fixedly connected to the probe 7. The lifting electric push rod 8 is fixedly connected to the upper inner wall of the detection frame 1. The moving end of the lifting electric push rod 8 is fixedly connected to the lifting plate 9. The upper side wall of the lifting plate 9 is fixedly connected to three measuring components 10 for displaying the thickness of the pavement structure. The three measuring components 10 all include a measuring box 101. The three measuring boxes 101 are all connected to the upper side wall of the lifting plate 9. The lower inner wall of the measuring box 101 is fixedly connected to a sliding seat 102 through a spring. The front side wall of the sliding seat 102 is fixedly connected to a measuring block 11. The front side wall of the measuring block 11 is provided with an index mark 12. The front side wall of the measuring box 101 is provided with a first scale 13. The rear side wall of the sliding seat 102 is provided with a placement groove, and the inner wall of the placement groove is fixedly connected to a small electric push rod 14. The moving end of the small electric push rod 14 is connected to the second pressure sensor. A friction block 16 is connected, a square rod 17 is fixedly connected to the right side wall of the lifting platform 6, three pressing frames 18 are fixedly connected to the rear side wall of the square rod 17, a control box 19 is fixedly connected to the rear inner wall of the pressing frame 18, an electromagnetic block 20 is fixedly connected to the front inner wall of the control box 19, a pressing frame 21 is plugged into the rear side wall of the control box 19, the front side wall of the pressing frame 21 is fixedly connected to the rear inner wall of the control box 19 through a spring, and a permanent magnetic plate 22 is fixedly connected to the front side wall of the pressing frame 21. Through this component, when the construction quality of the paved road surface is tested, the thickness of each functional layer of the paved road surface can be tested without drilling large holes in the paved road surface, thereby avoiding the problem that large holes will affect the overall force performance of the road surface, accelerate the generation and development of diseases, and extend the service life of the paved road surface; The marking component 23 is arranged on the upper side wall of the lifting plate 9 and is used to mark the area where the pavement structure does not meet the standards. The marking component 23 includes a paint box 231 fixedly connected to the upper side wall of the lifting plate 9. The inner wall of the paint box 231 is fixedly connected to two partition plates 232. The two partition plates 232 divide the interior of the paint box 231 into three storage chambers 24. The lower side walls of the three storage chambers 24 are fixedly connected with a discharge pipe 25. The lower end of the discharge pipe 25 passes through the lifting plate 9 and is fixedly connected with a nozzle 26. The interior of the discharge pipe 25 is provided with a control valve 27 and a normally open solenoid valve 28. The three measuring components 10 are electrically connected to the corresponding normally open solenoid valve 28 through a trigger component 38. The control valve 27 is located above the normally open solenoid valve 28. The upper side walls of the three storage chambers 24 are fixedly connected with a pressurizing pipe 29. The pressurizing pipe 29 is provided with an electromagnetic one-way valve 30. The three pressurizing pipes 29 are fixedly connected with the pressurizing pipes 29. The upper end of the tube 29 is fixedly connected to the same transverse tube 31, and the upper side wall of the transverse tube 31 is fixedly connected to a telescopic airbag 32. The upper end of the telescopic airbag 32 is fixedly connected to the upper inner wall of the detection frame 1. The upper side wall of the transverse tube 31 is fixedly connected to an air intake pipe 33, and a mechanical one-way valve 34 is provided in the air intake pipe 33. The upper side wall of the transverse tube 31 is fixedly connected to an exhaust pipe 35, and a pressure valve 36 is provided in the exhaust pipe 35. The upper side walls of the three storage chambers 24 are all connected to air pressure sensors 37, and the air pressure sensors 37 are electrically connected to the corresponding electromagnetic one-way valves 30 through the PLC controller 3. Through this component, when the thickness of each functional layer of the paved road surface is detected by using the detection device, when a functional layer that does not meet the standard is found, the functional layer that does not meet the standard can be marked in the detection area in time, so that the operator can record the unqualified road sections later. Two flatness detection components 46 are arranged on the left and right sides of the lower side wall of the lifting plate 9 for measuring the flatness of the road surface. The two flatness detection components 46 include a detection box 461. The two detection boxes 461 are symmetrically installed on the left and right sides of the lower side wall of the lifting plate 9. The upper inner wall of the detection box 461 is fixedly connected with a detection plate 462 through a spring. The upper side wall of the detection plate 462 is fixedly connected with a conductive frame 47. The conductive frame 47 is electrically connected to an external power supply. The left side wall of the detection box 461 is inlaid with two resistor plates 48. The ends of the two resistor plates 48 that are away from each other are electrically connected to the PLC controller 3. The lower side wall of the detection plate 462 is fixedly connected with a vertical rod 49. The lower end of the vertical rod 49 extends out of the detection box 461 and is fixedly connected with a detection wheel 50. Through this component, when the detection device is moved to the sampling location to detect the quality of the road section, the flatness of the moving path can be automatically detected. After detecting an uneven area on the road surface, this situation can be recorded and displayed in time to facilitate subsequent maintenance by the operator.

[0021] The trigger assembly 38 includes a conductive plate 381 slidably arranged inside the measuring box 101, a sliding groove 39 matching the conductive plate 381 is provided on the inner wall of the rear side of the measuring box 101, the conductive plate 381 is slidably arranged in the sliding groove 39, a conductive frame 382 is fixedly connected to the lower side wall of the sliding seat 102, the conductive frame 382 is electrically connected to the external power supply, the conductive plate 381 is electrically connected to the PLC controller 3, a bent plate 40 is fixedly connected to the rear side wall of the conductive plate 381, a sliding opening matching the bent plate 40 is provided on the side wall of the sliding groove 39, a threaded pin 41 is fixedly connected to the rear side wall of the bent plate 40, a threaded cap 42 is provided on the outer thread sleeve of the threaded pin 41, a rubber ring 43 is fixedly connected to the side wall of the threaded cap 42 close to the measuring box 101, an adjustment mark 44 is provided on the rear side wall of the threaded cap 42, and a second scale 45 is provided on the rear side wall of the measuring box 101. Through this assembly, the position of the conductive plate 381 can be adjusted according to the construction standard.

[0022] A positioning plate 51 is fixedly connected to the left side wall of the detection frame 1, a positioning electric push rod 52 is fixedly connected to the lower side wall of the positioning plate 51, and a nail plate 53 is fixedly connected to the moving end of the positioning electric push rod 52, which can ensure the stability of the device placement.

[0023] A carrying plate 54 is fixedly connected to the right side of the detection frame 1, a measuring electric push rod 55 is fixedly connected to the lower side wall of the carrying plate 54, a wheeled distance meter 56 is fixedly connected to the moving end of the measuring electric push rod 55, and the wheeled distance meter 56 is electrically connected to the PLC controller 3, so as to detect the moving distance of the device.

[0024] The lower side wall of the lifting plate 9 is fixedly connected with a guide cylinder 57 through a bracket, and the lower end of the probe 7 passes through the guide cylinder 57, thereby improving the stability of the probe 7 moving up and down.

[0025] The operating principle of the present invention is now described as follows: the detection device and the traction vehicle are connected together through the traction frame on the rear side of the detection frame 1, and then an electrical signal is transmitted to the PLC controller 3 through the operating table 2. After receiving the electrical signal, the PLC controller 3 first controls the lifting electric push rod 8 to work, and the lifting electric push rod 8 will drive the lifting plate 9 to move downward, and the lifting plate 9 drives the detection box 461 to move downward together, and the detection box 461 drives the detection plate 462, the vertical rod 49 and the detection wheel 50 to move downward together. When the detection wheel 50 contacts the road surface, it will stop moving immediately, and the detection box 461 is on the lifting plate. 9, the detection wheel 50 will drive the detection plate 462 and the conductive frame 47 to move upward relatively together in the detection box 461 through the vertical rod 49. When the lifting electric push rod 8 drives the detection box 461 to stop moving, the detection plate 462 and the conductive frame 47 will also stop moving in the detection box 461. At this time, the conductive frame 47 will stay between the two resistor plates 48 and will not contact the resistor plates 48. Then the PLC controller 3 will also control the measuring electric push rod 55 to work, and the measuring electric push rod 55 will drive the wheeled distance meter 56 to move downward, so that the wheel part of the wheeled distance meter 56 The detection wheel 50 contacts the road surface, and then the traction device drives the detection device to move. When the detection wheel 50 passes through the raised or recessed part on the road surface during the movement, the detection wheel 50 will drive the detection plate 462 and the conductive frame 47 to move upward or downward relatively in the detection box 461 through the vertical rod 49, so that the conductive frame 47 contacts the upper or lower resistor plate 48, and the more serious the protrusion or recess is, the farther the conductive frame 47 moves upward or downward. The conductive frame 47 is electrically connected to the external power supply, and the ends of the two resistor plates 48 that are far away from each other are electrically connected to the PLC controller 3. Therefore, when the conductive frame 47 contacts the upper or lower resistor plate 48, the conductive frame 47 is electrically connected to the external power supply, and the ends of the two resistor plates 48 that are far away from each other are electrically connected to the PLC controller 3. The farther the frame 47 moves, the smaller the resistance length connected to the circuit of the PLC controller 3 will be. Under the condition that the external voltage remains unchanged, the current intensity transmitted to the circuit of the PLC controller 3 will be greater (the PLC controller 3 converts the transmitted current signal into an analog quantity by means of a current sensor, converts it into a digital quantity through an analog quantity input module, processes the digital quantity through an internal program, and finally transmits the processing result to the display screen on the surface of the operating console 2 through a communication interface to display the corresponding number), and the distance of the convex or concave on the road surface is marked on the display screen on the surface of the operating console 2 through the wheel distance meter 56; After the detection device is moved to the sampling location, the operator adjusts the positions of the multiple conductive plates 381 according to the thickness of each structural layer of the paved road. For example, if the thickness of the surface asphalt layer is 10 cm, the operator needs to move the threaded pin 41 to 10 cm of the second scale 45 and fix the position of the threaded pin 41 through the threaded cap 42, thereby fixing the position of the conductive plate 381. Similarly, according to the thickness of other structural layers, the position of other conductive plates 381 is adjusted. Then, the operator transmits an electrical signal to the PLC controller 3 through the operating table 2. After receiving the electrical signal, the PLC controller 3 controls The positioning electric push rod 52 works, and the positioning electric push rod 52 drives the nail plate 53 to move downward, and the nail plate 53 is used to fix the position of the detection frame 1. Then the PLC controller 3 controls the detection electric push rod 5 to work, and the detection electric push rod 5 drives the lifting platform 6, the probe 7 and the square rod 17 to move downward together through the first pressure sensor 15. When the probe 7 contacts the asphalt layer on the surface of the road surface, the first pressure sensor 15 detects that the resistance of the probe 7 changes for the first time, and when the probe 7 just contacts the asphalt layer, the square rod 17 drives the three pressure frames 21 to squeeze the measuring block 11 downward through the three pressure frames 18, so that the measuring block 11 moves downward. After the lower end of the probe 7 passes through the asphalt layer and contacts the semi-rigid base layer, the resistance encountered by the probe 7 will increase suddenly. When the first pressure sensor 15 detects this change, it will immediately control the electromagnetic block 20 on the far right to be energized to generate magnetic force. The electromagnetic block 20 on the far right will attract the permanent magnetic plate 22 on the far right, so that the permanent magnetic plate 22 on the far right drives the pressure frame 21 on the far right to retract into the control box 19, thereby separating the pressure frame 21 from the measuring block 11, stopping the measuring block 11 and the sliding seat 102 from moving, and under the action of the friction force between the friction block 16 and the inner wall of the measuring box 101, the sliding seat 102 and the measuring block 11 will stop moving. This can be observed later. The thickness of the asphalt layer is determined by the position of the first scale 13 where the indicator mark 12 is located. Similarly, when the probe 7 passes through the base layer and contacts the cushion layer, the cushion layer material, such as permeable materials such as sand and gravel, or stable soil materials such as lime soil, has lower strength and rigidity than the base layer, and the resistance of the probe 7 will be reduced immediately. When the first pressure sensor 15 detects this change, it will immediately control the second electromagnetic block 20 on the right side to be energized. Referring to the above principle, the second measuring block 11 on the right side will stop moving, and the thickness of the base layer can be determined by observing the position of the first scale 13 where the second indicator mark 12 is located on the right side. In addition, according to this method, the thickness of the cushion layer can be detected. For example, when the thickness of the asphalt layer does not meet the standard, while the thickness of the base layer and the cushion layer meet the standard, after the rightmost sliding seat 102 stops moving, the rightmost conductive frame 382 will not contact the conductive plate 381 below, while the left and middle conductive frames 382 will contact the corresponding conductive plates 381 below, and the conductive frames 382 are electrically connected to the external power supply, and the conductive plates 381 are electrically connected to the corresponding normally open solenoid valves 28 through the PLC controller 3. Therefore, the rightmost normally open solenoid valve 28 will not be closed by current, and the left and middle two normally open solenoid valves will not be closed. 28 will be closed by passing current. When the probe 7 finishes the detection, the PLC controller 3 will control the three control valves 27 to be energized and opened for one second at the same time. Since the middle and left normally open solenoid valves 28 are energized and closed, the pigments in the middle and left storage chambers 24 will not be sprayed out, while the right normally open solenoid valve 28 is in an open state, which will cause the green pigment in the right storage chamber 24 to spray out (the pigments in the storage chamber 24 are red, yellow and green from left to right), indicating that the thickness of the asphalt layer in this area does not meet the standard, which is convenient for the operator to carry out subsequent repairs; After the PLC controller 3 detects that the air pressure in the corresponding storage chamber 24 decreases through the provided air pressure sensor 37, the PLC controller 3 will control the lifting electric push rod 8 to drive the lifting plate 9 to move up and down when the equipment is idle, and at the same time control the corresponding electromagnetic one-way valve 30 to open, so that the lifting plate 9 will drive the paint box 231 to move up and down, and use the paint box 231 to squeeze the telescopic airbag 32 above to increase the air pressure inside the telescopic airbag 32. The gas inside the telescopic airbag 32 will enter the storage chamber 24 with relatively low air pressure through the cross pipe 31, the pressurizing pipe 29 and the corresponding electromagnetic one-way valve. When the paint box 231 drives the lower end of the telescopic airbag 32 to move downward, the inside of the telescopic airbag 32 The air pressure will decrease, and the external gas will enter the cross pipe 31 and the telescopic airbag 32 through the air intake pipe 33 and the mechanical one-way valve 34 under the action of atmospheric pressure for storage. When the air pressure sensor 37 detects that the air pressure inside all storage chambers 24 has reached the set threshold value (50kPa), the air pressure sensor 37 will control the lifting electric push rod 8 to stop working through the PLC controller 3, and during the subsequent device detection process, when the lifting plate 9 drives the paint box 231 to move upward and squeeze the telescopic airbag 32, the gas inside the telescopic airbag 32 will be discharged from the cross pipe 31 through the exhaust pipe 35 and the pressure valve 36, so that a certain air pressure is maintained in each storage chamber 24, which is convenient for the subsequent discharge of paint.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A paved road construction quality inspection device, comprising an inspection frame (1) and an operating table (2) arranged on the left side of the inspection frame (1), a PLC controller (3) being fixedly connected to the right inner wall of the inspection frame (1), and two rollers (4) being fixedly connected to the left and right sides of the lower side wall of the inspection frame (1), characterized in that: Also includes: A detection electric push rod (5) is fixedly connected to the upper side wall of the detection frame (1); the movable end of the detection electric push rod (5) passes through the detection frame (1) and is fixedly connected to a lifting platform (6) via a first pressure sensor (15); and a probe (7) is fixedly connected to the lower side wall of the lifting platform (6); A lifting electric push rod (8) is fixedly connected to the upper inner wall of the detection frame (1); a moving end of the lifting electric push rod (8) is fixedly connected to a lifting plate (9); and an upper side wall of the lifting plate (9) is fixedly connected to three measuring components (10) for displaying the thickness of the pavement structure; A marking assembly (23), arranged on the upper side wall of the lifting plate (9), and used to mark areas where the pavement structure does not meet the standards; Two flatness detection components (46) are arranged on the left and right sides of the lower side wall of the lifting plate (9) and are used to measure the flatness of the road surface.

2. A paved road construction quality detection device according to claim 1, characterized in that: The three measuring assemblies (10) each comprise a measuring box (101), the three measuring boxes (101) each being connected to the upper side wall of the lifting plate (9), the lower inner wall of the measuring box (101) being fixedly connected to a sliding seat (102) via a spring, the front side wall of the sliding seat (102) being fixedly connected to a measuring block (11), the front side wall of the measuring block (11) being provided with an index mark (12), the front side wall of the measuring box (101) being provided with a first scale (13), the rear side wall of the sliding seat (102) being provided with a placement groove, the inner wall of the placement groove being fixedly connected to a small electric push rod (14), the small electric push rod The movable end of (14) is connected to a friction block (16) via a second pressure sensor, the right side wall of the lifting platform (6) is fixedly connected to a square rod (17), the rear side wall of the square rod (17) is fixedly connected to three pressure frames (18), the rear inner wall of the pressure frame (18) is fixedly connected to a control box (19), the front inner wall of the control box (19) is fixedly connected to an electromagnetic block (20), the rear side wall of the control box (19) is plugged with a pressure frame (21), the front side wall of the pressure frame (21) is fixedly connected to the rear inner wall of the control box (19) via a spring, and the front side wall of the pressure frame (21) is fixedly connected to a permanent magnet plate (22).

3. A paved road construction quality detection device according to claim 2, characterized in that: The marking component (23) comprises a paint box (231) fixedly connected to the upper side wall of the lifting plate (9); the inner wall of the paint box (231) is fixedly connected to two partition plates (232); the two partition plates (232) divide the interior of the paint box (231) into three storage chambers (24); the lower side walls of the three storage chambers (24) are all fixedly connected to a discharge pipe (25); the lower end of the discharge pipe (25) passes through the lifting plate (9) and is fixedly connected to a nozzle (26); a control valve (27) and a normally open solenoid valve (28) are provided inside the discharge pipe (25); the three measuring components (10) are all electrically connected to the corresponding normally open solenoid valve (28) via a trigger component (38); the control valve (27) is located above the normally open solenoid valve (28); the upper side walls of the three storage chambers (24) are all fixedly connected to a discharge pipe (25); the lower end of the discharge pipe (25) passes through the lifting plate (9) and is fixedly connected to a nozzle (26); a control valve (27) and a normally open solenoid valve (28) are provided inside the discharge pipe (25); A pressurizing tube (29) is fixedly connected, and an electromagnetic one-way valve (30) is arranged in the pressurizing tube (29). The upper ends of the three pressurizing tubes (29) are fixedly connected to the same transverse tube (31). The upper side wall of the transverse tube (31) is fixedly connected to a telescopic airbag (32). The upper end of the telescopic airbag (32) is fixedly connected to the upper inner wall of the detection frame (1). The upper side wall of the transverse tube (31) is fixedly connected to an air intake pipe (33), and a mechanical one-way valve (34) is arranged in the air intake pipe (33). The upper side wall of the transverse tube (31) is fixedly connected to an exhaust pipe (35), and a pressure valve (36) is arranged in the exhaust pipe (35). The upper side walls of the three storage chambers (24) are all connected to air pressure sensors (37). The air pressure sensors (37) are electrically connected to the corresponding electromagnetic one-way valves (30) through a PLC controller (3).

4. A paved road construction quality detection device according to claim 3, characterized in that: The trigger assembly (38) comprises a conductive plate (381) slidably disposed inside the measuring box (101); a sliding groove (39) matching the conductive plate (381) is provided on the rear inner wall of the measuring box (101); the conductive plate (381) is slidably disposed in the sliding groove (39); a conductive frame (382) is fixedly connected to the lower side wall of the sliding seat (102); the conductive frame (382) is electrically connected to an external power supply; the conductive plate (381) is electrically connected to a PLC controller (3); and the conductive plate (381) is electrically connected to a PLC controller (3). 1) is fixedly connected to a bent plate (40), a side wall of the sliding groove (39) is provided with a sliding opening that matches the bent plate (40), a threaded pin (41) is fixedly connected to the rear side wall of the bent plate (40), a threaded cap (42) is provided on the outer thread sleeve of the threaded pin (41), a rubber ring (43) is fixedly connected to the threaded cap (42) near the side wall of the measuring box (101), an adjustment mark (44) is provided on the rear side wall of the measuring box (101), and a second scale (45) is provided on the rear side wall of the measuring box (101).

5. A paved road construction quality detection device according to claim 1, characterized in that: The two flatness detection assemblies (46) comprise a detection box (461), the two detection boxes (461) are symmetrically mounted on the left and right sides of the lower side wall of the lifting plate (9), the upper inner wall of the detection box (461) is fixedly connected to a detection plate (462) via a spring, the upper side wall of the detection plate (462) is fixedly connected to a conduction frame (47), the conduction frame (47) is electrically connected to an external power supply, the left side wall of the detection box (461) is inlaid with two resistor plates (48), the ends of the two resistor plates (48) that are away from each other are both electrically connected to a PLC controller (3), the lower side wall of the detection plate (462) is fixedly connected to a vertical rod (49), the lower end of the vertical rod (49) extends out of the detection box (461) and is fixedly connected to a detection wheel (50).

6. A paved road construction quality detection device according to claim 1, characterized in that: A positioning plate (51) is fixedly connected to the left side wall of the detection frame (1), a positioning electric push rod (52) is fixedly connected to the lower side wall of the positioning plate (51), and a nail plate (53) is fixedly connected to the movable end of the positioning electric push rod (52).

7. A paved road construction quality detection device according to claim 1, characterized in that: A bearing plate (54) is fixedly connected to the right side of the detection frame (1); a measuring electric push rod (55) is fixedly connected to the lower side wall of the bearing plate (54); a wheeled distance meter (56) is fixedly connected to the movable end of the measuring electric push rod (55); and the wheeled distance meter (56) is electrically connected to the PLC controller (3).

8. A paved road construction quality detection device according to claim 1, characterized in that: The lower side wall of the lifting plate (9) is fixedly connected to a guide cylinder (57) via a bracket, and the lower end of the probe (7) passes through the guide cylinder (57).

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