Device for detecting anti-freezing and anti-cracking performance of modified asphalt

Abstract

The utility model relates to the technical field of asphalt detection, and discloses a modified asphalt anti-freezing and anti-cracking performance detection device which comprises a frame, the top wall of the frame is fixedly connected with a fixed beam, the top wall of the fixed beam is fixedly connected with a rotating motor, the bottom wall of the fixed beam is fixedly connected with a fixed sleeve, and the fixed sleeve is fixedly connected with the rotating motor. A driving rod is fixedly connected to the output end of the rotating motor, a drilling barrel is slidably connected to the outer wall of the driving rod, lifting rods are fixedly connected to the left side and the right side of the bottom wall of the fixed beam, and the inner walls of the lifting rods are rotatably connected to the upper middle portion of the outer wall of the drilling barrel; and a liquid nitrogen tank is fixedly connected to the rear side of the inner bottom wall of the frame. According to the device, after the position of a drilled hole is cooled through liquid nitrogen, the crack resistance of modified asphalt on the inner wall of the hole is detected through the cross clamping rod, and it is guaranteed that a road can still keep a good working state under the extremely cold condition.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt detection, in particular to a device for detecting the antifreeze and anti-cracking properties of modified asphalt. Background Art

[0002] Modified asphalt refers to an asphalt mixture made by adding rubber, resin, high molecular polymer, ground rubber powder or other fillers as admixtures, or taking measures such as mild oxidation of asphalt to improve the performance of asphalt or asphalt mixture. Compared with traditional ordinary asphalt, it has higher high-temperature stability and can reduce rutting and sliding of the road surface in hot summer.

[0003] Under low temperature conditions, asphalt will become hard and brittle. Low temperature reduces the flexibility of asphalt, making it harder and more brittle, making asphalt more likely to crack when subjected to external forces. In the cold winter, the asphalt pavement on the road will crack due to frequent vehicle rolling and sudden drops in temperature.

[0004] Cracks and loose asphalt pavement will reduce the friction between tires and the road surface and increase the risk of vehicle skidding. Especially in rainy and snowy weather conditions, cracks and loose asphalt pavement will cause traffic accidents. Before the arrival of winter, anti-freeze and anti-cracking performance tests should be carried out on each road section to ensure that the asphalt pavement will not crack or become loose when winter comes. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a modified asphalt antifreeze and anti-cracking performance detection device, which aims to improve the problem that under low temperature conditions, asphalt will harden and brittle, causing cracks and looseness in the road surface, thereby causing traffic accidents.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a modified asphalt antifreeze and anti-cracking performance testing device, comprising a frame, the top wall of the frame is fixedly connected to a fixed beam, the top wall of the fixed beam is fixedly connected to a rotating motor, the bottom wall of the fixed beam is fixedly connected to a fixed sleeve, the output end of the rotating motor is fixedly connected to a driving rod, the outer wall of the driving rod is slidably connected to a drill barrel, the driving rod and the drill barrel are slidably connected, the left and right sides of the bottom wall of the fixed beam are fixedly connected to lifting rods, the inner wall of the lifting rod is rotatably connected to the middle and upper part of the outer wall of the drill barrel, the rear side of the inner bottom wall of the frame is fixedly connected to a liquid nitrogen tank, the output end of the liquid nitrogen tank is connected to a nitrogen supply pipe, the nitrogen supply pipe passes through the bottom wall of the frame, the front end of the nitrogen supply pipe is connected to a nozzle, the front side of the bottom wall of the frame is fixedly connected to a lifting rod, the bottom end of the lifting rod is fixedly connected to a cross clamp rod, the front ends of the cross clamp rods are rotatably connected to pressure gauges, and a filling mechanism is provided on the front side of the top wall of the frame.

[0007] Through the above technical solution: the motor is used to drive the drill barrel to rotate and drill a hole, the modified asphalt on the road surface is drilled out, and the liquid nitrogen is used to cool the hole using a nozzle to simulate an extremely cold environment. The cross clamp rod is lowered into the hole and pressure is applied outward through the two ends of the pressure gauge to test the crack resistance of the modified asphalt on the inner wall of the hole, ensuring that the road can still maintain good working condition under extremely cold conditions.

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

[0009] The filling mechanism includes a supporting base, a filling liquid barrel is provided on the top wall of the supporting base, a water pump is fixedly connected to the front end of the top wall of the frame, the top end of the water pump is connected to a discharge pipe, the top end of the discharge pipe is connected to the bottom end of the filling liquid barrel, the front end of the discharge pipe is connected to a discharge hose, the front end of the discharge hose is connected to a conical discharge nozzle, the front bottom end of the frame is fixedly connected to a hose bracket, the top end of the hose bracket is fitted to the bottom wall of the conical discharge nozzle, handles are fixedly connected to the left and right sides of the top wall of the filling liquid barrel, and a sealed feed cover is connected to the middle part of the top wall of the filling liquid barrel.

[0010] Through the above technical solution: the filling liquid in the filling liquid barrel is extracted by a water pump and transported forward along the pipeline, and the conical discharge nozzle is aligned with the gap between the hole and the drilled modified asphalt to pour the filling liquid, thereby achieving rapid and accurate filling of the road surface after inspection, ensuring the flatness and safety of the road surface.

[0011] As a further description of the above technical solution:

[0012] The front end of the top wall of the frame is fixedly connected with a fixed carrier plate, and the front end of the fixed carrier plate is fixedly connected with a cylindrical push tube.

[0013] Through the above technical solution: the fixed carrier plate serves as a centralized mounting plate for the control equipment mounted on the frame, and the cylindrical push tube installed at its front end is used to facilitate pushing the entire device for position change.

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

[0015] The front bottom end of the fixed carrier plate is fixedly connected with a console, and the top of the console is fixedly connected with a plurality of control buttons.

[0016] Through the above technical solution: the control console on the front side of the fixed carrier serves as a centralized carrier for controlling the entire equipment, and the multiple control buttons on the top can respectively control the water pump, rotating motor, pulling rod, lifting rod, pressure gauge and camera.

[0017] As a further description of the above technical solution:

[0018] A pressure gauge is fixedly connected to the middle portion of the front side of the fixed carrier plate, and the pressure gauge is electrically connected to the pressure tester.

[0019] Through the above technical solution: the pressure gauge is electrically connected to the pressure tester to display in real time the pressure value borne by the tested material during the test process.

[0020] As a further description of the above technical solution:

[0021] Universal wheels are fixedly connected to the four corners of the bottom wall of the frame, and the outer walls of the plurality of universal wheels are provided with anti-slip grooves.

[0022] Through the above technical solution: the universal wheels at the bottom of the frame can make the entire device movable, which is convenient for testing in different places. At the same time, the anti-slip grooves on the outer wall of the universal wheels improve the stability and safety of the device during movement and prevent slipping due to wet and slippery ground.

[0023] As a further description of the above technical solution:

[0024] A camera is fixedly connected to the right side of the bottom wall of the frame, and the camera is electrically connected to the console.

[0025] Through the above technical solution: the camera fixed on the right side of the bottom wall of the frame is electrically connected to the console, so that the operator can view the images during the inspection process in real time on the console, which is convenient for remote monitoring and recording of inspection data.

[0026] As a further description of the above technical solution:

[0027] The outer wall of the frame is fixedly connected with a plurality of diagonal braces, and the plurality of diagonal braces are fixedly connected to each other in a cross state.

[0028] Through the above technical solution, the diagonal braces fixedly connected to the outer wall of the frame are fixedly connected to each other in a cross state, thereby enhancing the overall stability and load-bearing capacity of the device.

[0029] The utility model has the following beneficial effects:

[0030] 1. In the present invention, a motor is driven to rotate the drill barrel to drill a hole, thereby drilling out the modified asphalt on the road surface. A nozzle is used to cool the hole with liquid nitrogen to simulate an extremely cold environment. A cross clamp is lowered into the hole and pressure is applied outwards through the two ends of the pressure gauge to test the crack resistance of the modified asphalt on the inner wall of the hole, thereby ensuring that the road can still maintain good working condition under extremely cold conditions.

[0031] 2. In the present invention, the filling liquid in the filling liquid barrel is pumped out by a water pump and transported forward along the pipeline. The conical discharge nozzle is aligned with the gap between the hole and the drilled modified asphalt to pour the filling liquid, thereby achieving rapid and accurate filling of the road surface after inspection, ensuring the flatness and safety of the road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a three-dimensional diagram of a device for testing the antifreeze and anti-cracking properties of modified asphalt proposed in the present invention;

[0033] Figure 2 This is a bottom view of a device for testing the antifreeze and anti-cracking properties of modified asphalt proposed in the present invention;

[0034] Figure 3 This is a structural diagram of a driving rod of a modified asphalt antifreeze and anti-cracking performance testing device proposed in the present invention;

[0035] Figure 4 This is a structural diagram of a filling mechanism of a modified asphalt antifreeze and anti-cracking performance testing device proposed in the utility model;

[0036] Figure 5 This is a front view of a device for detecting the antifreeze and anti-cracking properties of modified asphalt proposed by the utility model.

[0037] Legend:

[0038] 1. Frame; 2. Filling mechanism; 201. Support base; 202. Filling liquid barrel; 203. Water pump; 204. Discharge pipe; 205. Discharge hose; 206. Conical discharge nozzle; 207. Hose bracket; 208. Handle; 209. Sealed feed cover; 3. Fixed beam; 4. Rotating motor; 5. Fixed sleeve; 6. Drive rod; 7. Drill barrel; 8. Lifting rod; 9. Liquid nitrogen tank; 10. Nitrogen delivery pipe; 11. Nozzle; 12. Lifting rod; 13. Cross clamp rod; 14. Manometer; 15. Fixed carrier plate; 16. Cylindrical push tube; 17. Control console; 18. Control button; 19. Pressure gauge; 20. Universal wheel; 21. Anti-slip groove; 22. Camera; 23. Diagonal brace. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Reference Figure 1 、 Figure 2and Figure 3 The utility model provides an embodiment: a modified asphalt antifreeze and anti-cracking performance detection device, including a frame 1, the top wall of the frame 1 is fixedly connected to a fixed beam 3, the top wall of the fixed beam 3 is fixedly connected to a rotating motor 4, the bottom wall of the fixed beam 3 is fixedly connected to a fixed sleeve 5, the output end of the rotating motor 4 is fixedly connected to a driving rod 6, the outer wall of the driving rod 6 is slidably connected to a drill tube 7, the driving rod 6 is slidably connected to the drill tube 7, the bottom wall of the fixed beam 3 is fixedly connected to a lifting rod 8, the lifting rod 8 The inner wall is rotatably connected to the middle and upper part of the outer wall of the drill tube 7, the rear side of the inner bottom wall of the frame 1 is fixedly connected to a liquid nitrogen tank 9, the output end of the liquid nitrogen tank 9 is connected to a nitrogen delivery pipe 10, the nitrogen delivery pipe 10 passes through the bottom wall of the frame 1, and the front end of the nitrogen delivery pipe 10 is connected to a nozzle 11. The front side of the bottom wall of the frame 1 is fixedly connected to a lifting rod 12, the bottom end of the lifting rod 12 is fixedly connected to a cross clamping rod 13, and the front end of the cross clamping rod 13 is rotatably connected to a pressure gauge 14 between adjacent ones, and a filling mechanism 2 is provided on the front side of the top wall of the frame 1;

[0041] Specifically, the fixed beam 3 on the frame 1 is used as the support structure of the rotating motor 4, and its output end is connected to the driving rod 6, and the driving rod 6 is slidably connected to the drill barrel 7. When the rotating motor 4 is started, it will drive the driving rod 6 to rotate, and then drive the drill barrel 7 to rotate. The rotation of the drill barrel 7 is further supported and stabilized by the lifting rod 8, and its inner wall is rotatably connected to the middle and upper part of the outer wall of the drill barrel 7, which not only enables the rotation of the drill barrel 7, but also makes the drill barrel 7 have a certain stability in the vertical direction. After the drill barrel 7 completes the rotary drilling, the liquid nitrogen tank 9 provides liquid nitrogen to the nozzle 11 through the nitrogen pipe 10. The nozzle 11 is located at the rear side of the drill barrel 7. When the drill barrel 7 drills into the modified asphalt, it During the removal process, the nozzle 11 will spray liquid nitrogen into the borehole. The low temperature of the liquid nitrogen can quickly reduce the temperature of the modified asphalt to simulate an extremely cold environment. The lifting rod 12 and the cross clamp rod 13 are used to install and fix the pressure gauge 14. The pressure gauge 14 is located between the front ends of the cross clamp rod 13. When the drill barrel 7 drills into a certain depth to remove the modified asphalt, the pressure gauge 14 will contact the surface of the material after the internal temperature has been cooled. At the same time, the two ends will perform contraction pressure measurement and record the deformation of the modified asphalt under pressure, so as to evaluate the crack resistance of the modified asphalt, realize the detection of the crack resistance of the modified asphalt under extremely cold temperatures, and ensure that the road can still maintain good working condition under extremely cold conditions.

[0042] Reference Figure 1 and Figure 4The filling mechanism 2 includes a supporting base 201, a filling liquid barrel 202 is provided on the top wall of the supporting base 201, a water pump 203 is fixedly connected to the front end of the top wall of the frame 1, the top of the water pump 203 is connected to a discharge pipe 204, the top of the discharge pipe 204 is connected to the bottom end of the filling liquid barrel 202, the front end of the discharge pipe 204 is connected to a discharge hose 205, the front end of the discharge hose 205 is connected to a conical discharge nozzle 206, the bottom end of the front side of the frame 1 is fixedly connected to a hose bracket 207, the top of the hose bracket 207 is attached to the bottom wall of the conical discharge nozzle 206, handles 208 are fixedly connected to the left and right sides of the top wall of the filling liquid barrel 202, and a sealed feed cover 209 is connected to the middle of the top wall of the filling liquid barrel 202;

[0043] Specifically, the filling mechanism 2 is based on a stable supporting base 201, so that a filling liquid barrel 202 with a sufficient amount of filling liquid can be carried on its top. The handles 208 on the left and right sides of the top wall of the filling liquid barrel 202 are convenient for gripping. The water pump 203 installed at the front end of the top wall of the frame 1 is used as a power source. When the water pump 203 is started, the filling liquid in the filling liquid barrel 202 is pumped out through the discharge pipe 204 and transported forward along the pipeline. In order to more accurately transport the filling material to the position of the road surface that needs to be filled, a soft discharge hose 205 is connected to the front end of the discharge pipe 204 to enhance the flexibility of the filling process. At the end of the discharge hose 205, there is a conical discharge nozzle 206 connected, which can accurately control the flow direction and distribution range of the filling material to ensure the filling effect. A hose bracket 207 is also fixedly connected to the bottom end of the front side of the frame 1. The top of the hose bracket 207 fits tightly with the bottom wall of the conical discharge nozzle 206, which plays a supporting and stabilizing role. When adding new filling material to the filling liquid barrel 202, the material is added through the sealed feed cover 209 in the middle of the top wall of the filling liquid barrel 202, thereby achieving rapid and accurate filling of the road surface after inspection and ensuring the flatness and safety of the road surface.

[0044] Reference Figure 1 and Figure 5 The front end of the top wall of the frame 1 is fixedly connected to a fixed carrier plate 15, and the front end of the fixed carrier plate 15 is fixedly connected to a cylindrical push tube 16; the front bottom end of the fixed carrier plate 15 is fixedly connected to a console 17, and the top of the console 17 is fixedly connected to a plurality of control buttons 18; the middle part of the front side of the fixed carrier plate 15 is fixedly connected to a pressure gauge 19, and the pressure gauge 19 is electrically connected to the pressure gauge 14;

[0045] Specifically, the fixed carrier plate 15 serves as a centralized mounting plate for the control equipment on the frame 1, and the cylindrical push tube 16 installed at its front end is used to facilitate pushing the entire device to change position. The control console 17 on the front side of the fixed carrier plate 15 serves as a centralized carrier for controlling the entire equipment. The multiple control buttons 18 on the top can respectively control the water pump 203, the rotating motor 4, the lifting rod 8, the lifting rod 12, the pressure gauge 14 and the camera 22. The pressure gauge 19 is electrically connected to the pressure gauge 14 and is used to display the pressure value of the material being tested during the test in real time.

[0046] Reference Figure 1 and Figure 2 Universal wheels 20 are fixedly connected to the four corners of the bottom wall of the frame 1, and the outer walls of the multiple universal wheels 20 are provided with anti-slip grooves 21; a camera 22 is fixedly connected to the right side of the bottom wall of the frame 1, and the camera 22 is electrically connected to the console 17; a plurality of diagonal braces 23 are fixedly connected to the outer wall of the frame 1, and the multiple diagonal braces 23 are fixedly connected to each other in a cross state;

[0047] Specifically, the universal wheel 20 at the bottom of the frame 1 can make the entire device movable, which is convenient for testing in different places. At the same time, the anti-slip groove 21 on the outer wall of the universal wheel 20 improves the stability and safety of the device during movement, preventing slipping due to wet and slippery ground. The camera 22 fixedly connected to the right side of the bottom wall of the frame 1 is electrically connected to the console 17, so that the operator can view the images during the testing process in real time on the console 17, which is convenient for remote monitoring and recording of test data. The diagonal braces 23 fixedly connected to the outer wall of the frame 1 are fixedly connected to each other in a cross state, which enhances the overall stability and carrying capacity of the device.

[0048] Working principle: The fixed beam 3 on the frame 1 is used as the support structure of the rotating motor 4, and its output end is connected to the driving rod 6, and the driving rod 6 is slidably connected to the drill barrel 7. When the rotating motor 4 is started, it will drive the driving rod 6 to rotate, and then drive the drill barrel 7 to rotate. The rotation of the drill barrel 7 is further supported and stabilized by the lifting rod 8. The inner wall of the lifting rod is rotatably connected to the middle and upper part of the outer wall of the drill barrel 7, which not only enables the rotation of the drill barrel 7, but also makes the drill barrel 7 have a certain stability in the vertical direction. After the drill barrel 7 completes the rotary drilling, the liquid nitrogen tank 9 provides liquid nitrogen to the nozzle 11 through the nitrogen pipe 10, and the nozzle 11 is located at the rear side of the drill tube 7. When the drill tube 7 is drilled into the modified asphalt and is removed, the nozzle 11 will spray liquid nitrogen into the borehole. The low temperature of the liquid nitrogen can quickly reduce the temperature of the modified asphalt to simulate an extremely cold environment. The lifting rod 12 and the cross clamp rod 13 are used to install and fix the pressure gauge 14. The pressure gauge 14 is located between the front ends of the cross clamp rod 13. When the drill tube 7 drills to a certain depth and the modified asphalt is removed, the pressure gauge 14 will contact the surface of the material after the internal temperature has been cooled. At the same time, the two ends will perform contraction pressure measurement and record the deformation of the modified asphalt under pressure, thereby evaluating the crack resistance of the modified asphalt.

[0049] Furthermore, the filling mechanism 2 is based on a stable support base 201, so that a filling liquid barrel 202 with a sufficient amount of filling liquid can be carried on its top. The handles 208 on the left and right sides of the top wall of the filling liquid barrel 202 are convenient for gripping. The water pump 203 installed at the front end of the top wall of the frame 1 is used as a power source. When the water pump 203 is started, the filling liquid in the filling liquid barrel 202 is pumped out through the discharge pipe 204 and transported forward along the pipeline. In order to more accurately transport the filling material to the road surface location that needs to be filled, a soft discharge hose 2 is connected to the front end of the discharge pipe 204. 05, which enhances the flexibility in the filling process. A conical discharge nozzle 206 is connected to the end of the discharge hose 205, so that it can accurately control the flow direction and distribution range of the filling material to ensure the filling effect. A hose bracket 207 is also fixedly connected to the bottom end of the front side of the frame 1. The top of the hose bracket 207 fits tightly with the bottom wall of the conical discharge nozzle 206, which plays a supporting and stabilizing role. When adding new filling material to the filling liquid barrel 202, the material is added through the sealed feed cover 209 in the middle of the top wall of the filling liquid barrel 202.

[0050] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for detecting the antifreeze and anti-cracking properties of modified asphalt, comprising a frame (1), characterized in that: The top wall of the vehicle frame (1) is fixedly connected to a fixed beam (3), the top wall of the fixed beam (3) is fixedly connected to a rotating motor (4), the bottom wall of the fixed beam (3) is fixedly connected to a fixed sleeve (5), the output end of the rotating motor (4) is fixedly connected to a driving rod (6), the outer wall of the driving rod (6) is slidably connected to a drill tube (7), the driving rod (6) and the drill tube (7) are slidably connected, the left and right sides of the bottom wall of the fixed beam (3) are fixedly connected to lifting rods (8), the inner wall of the lifting rod (8) is rotatably connected to the middle and upper part of the outer wall of the drill tube (7), The rear side of the inner bottom wall of the frame (1) is fixedly connected to a liquid nitrogen tank (9), the output end of the liquid nitrogen tank (9) is connected to a nitrogen delivery pipe (10), the nitrogen delivery pipe (10) passes through the bottom wall of the frame (1), the front end of the nitrogen delivery pipe (10) is connected to a nozzle (11), the front side of the bottom wall of the frame (1) is fixedly connected to a lifting rod (12), the bottom end of the lifting rod (12) is fixedly connected to a cross clamp rod (13), the front end of the cross clamp rod (13) is rotatably connected to a pressure gauge (14) between adjacent ones, and a filling mechanism (2) is provided on the front side of the top wall of the frame (1).

2. A device for detecting the antifreeze and anti-cracking properties of modified asphalt according to claim 1, characterized in that: The filling mechanism (2) comprises a support base (201), the top wall of the support base (201) is provided with a filling liquid barrel (202), the front end of the top wall of the frame (1) is fixedly connected to a water pump (203), the top end of the water pump (203) is connected to a discharge pipe (204), the top end of the discharge pipe (204) is connected to the bottom end of the filling liquid barrel (202), the front end of the discharge pipe (204) is connected to a discharge hose (205), the front end of the discharge hose (205) is connected to a conical discharge nozzle (206), the bottom end of the front side of the frame (1) is fixedly connected to a hose bracket (207), the top end of the hose bracket (207) is attached to the bottom wall of the conical discharge nozzle (206), the left and right sides of the top wall of the filling liquid barrel (202) are fixedly connected to handles (208), and the middle part of the top wall of the filling liquid barrel (202) is connected to a sealed feed cover (209).

3. The device for detecting the antifreeze and anti-cracking properties of modified asphalt according to claim 1, characterized in that: The front end of the top wall of the vehicle frame (1) is fixedly connected to a fixed carrier plate (15), and the front end of the fixed carrier plate (15) is fixedly connected to a cylindrical push tube (16).

4. A device for detecting the antifreeze and anti-cracking properties of modified asphalt according to claim 3, characterized in that: The front bottom end of the fixed carrier plate (15) is fixedly connected to a console (17), and the top of the console (17) is fixedly connected to a plurality of control buttons (18).

5. The device for detecting the antifreeze and anti-cracking properties of modified asphalt according to claim 3, characterized in that: A pressure gauge (19) is fixedly connected to the middle portion of the front side of the fixed carrier plate (15), and the pressure gauge (19) is electrically connected to the pressure measuring device (14).

6. The device for detecting the antifreeze and anti-cracking properties of modified asphalt according to claim 1, characterized in that: Universal wheels (20) are fixedly connected to the four corners of the bottom wall of the vehicle frame (1), and the outer walls of the plurality of universal wheels (20) are provided with anti-slip grooves (21).

7. The device for detecting the antifreeze and anti-cracking properties of modified asphalt according to claim 1, characterized in that: A camera (22) is fixedly connected to the right side of the bottom wall of the vehicle frame (1), and the camera (22) is electrically connected to the console (17).

8. The device for detecting the antifreeze and anti-cracking properties of modified asphalt according to claim 1, characterized in that: The outer wall of the vehicle frame (1) is fixedly connected to a plurality of diagonal braces (23), and the plurality of diagonal braces (23) are fixedly connected to each other in a cross state.

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