Asphalt pavement paving temperature detector and use method

Abstract

The application discloses an asphalt pavement paving temperature detector and a use method thereof. The asphalt pavement paving temperature detector comprises a base, an installation assembly for installing the base on a road roller is slidably arranged on the top of the base, a compression roller is rotatably arranged at each end of the base, a reciprocating screw rod is rotatably arranged at the center of the base, the reciprocating screw rod is in transmission connection with the two compression rollers, and a plurality of temperature measuring probes for measuring the temperature of the asphalt pavement are slidably arranged on the reciprocating screw rod. When the road roller moves linearly, the movement track of the temperature measuring probe is a sinusoidal curve about the midpoint of the reciprocating screw rod, so that the temperature measuring probe can measure the temperature at different positions on the asphalt pavement, the range of the temperature measuring probe for measuring the asphalt pavement is improved, and the temperature condition of the asphalt pavement can be comprehensively understood by a technician in a manner that the temperature measurement area of the asphalt pavement is increased.

Description

Technical Field

[0001] This invention relates to the field of asphalt temperature detection technology, specifically to an asphalt pavement paving temperature detector and its usage method. Background Technology

[0002] During the asphalt paving process, it is necessary to monitor the temperature of the asphalt pavement to facilitate compaction. Asphalt mixtures are very sensitive to temperature. Under the same rolling process, areas with low temperatures are difficult to compact, while areas with high temperatures are easier to compact. Therefore, temperature measurements need to be taken on the pavement after asphalt paving.

[0003] For example, patent application number 201721280492.X discloses an asphalt pavement paving and compaction temperature detector, which includes a temperature detection device, a display screen, an instrument panel, an input panel, an instrument base plate, and a controller, and has the advantage of improving detection accuracy.

[0004] However, the temperature detector in application number "201721280492.X" has a limited measuring area and can only be tested at fixed points by technicians. In order to obtain effective data, technicians often need to conduct large-scale and multi-point tests, which undoubtedly increases their workload. The temperature measurement of asphalt pavement is not comprehensive enough, so it is impossible to accurately analyze whether the asphalt pavement is compacted. At the same time, in order to observe whether the asphalt pavement is compacted, it is often necessary to measure the internal temperature of the asphalt pavement after rolling. Summary of the Invention

[0005] The purpose of this invention is to provide an asphalt pavement paving temperature detector and its usage method, thereby solving the problems in the prior art.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] An asphalt pavement paving temperature detector includes a base. A mounting assembly for mounting the base onto a road roller is slidably installed on the top of the base. Pressure rollers are rotatably mounted at both ends of the base. A reciprocating screw is rotatably mounted at the center of the base, and the reciprocating screw is connected to the two pressure rollers. Multiple temperature probes for measuring the temperature of the asphalt pavement are slidably mounted on the reciprocating screw. Temperature measuring needles for measuring the internal temperature of the asphalt pavement are slidably mounted inside both ends of the base. A heat dissipation assembly for dissipating heat from the temperature measuring probes is provided on the top of each temperature measuring needle.

[0008] Preferably, the mounting assembly includes a rectangular upright plate fixedly connected to the center of the top of the base. A rectangular slider is fixedly connected to one end of the rectangular upright plate away from the base. The rectangular slider is slidably fitted inside a rectangular sleeve. The rectangular sleeve is slidably fitted to the outside of the rectangular upright plate through the rectangular slider. A rectangular air tube is provided inside the rectangular upright plate. The two ends of the rectangular air tube pass through the top wall panel of the base and the wall panel of the rectangular slider, respectively. Two sliding grooves are provided inside the rectangular upright plate. The two sliding grooves are located on both sides of the rectangular air tube. A sliding rod is slidably fitted inside the sliding groove. The top of the sliding rod is fixedly connected to the inner top wall panel of the rectangular sleeve.

[0009] Preferably, the bottom of the base has an installation groove for installing a temperature probe. Rectangular air slots for gas flow are provided on both sides of the bottom of the installation groove. The bottom of the rectangular air pipe penetrates the top wall of the base and communicates with the installation groove, with a one-way air outlet valve at the connection point. Telescopic columns are provided on both sides of the top of the rectangular sleeve. The telescopic ends of the two telescopic columns are fixedly connected to the top sides of the rectangular sleeve, and the fixed ends of the two telescopic columns are fixedly connected to the bottom sides of the mounting plate. The mounting plate has multiple slots for mounting the base on a road roller. An air hole is provided at the center of the top of the rectangular sleeve, and a one-way air inlet valve is provided inside the air hole. A pressure spring is sleeved on the outside of the slider, and both ends of the pressure spring are fixedly connected to the inner top of the rectangular sleeve and the top wall of the rectangular slider, respectively.

[0010] Preferably, the reciprocating screw is rotatably installed in the mounting groove, passing through the two end walls of the mounting groove and rotatably sleeved within the two end walls of the mounting groove. Both ends of the reciprocating screw are fixedly connected to a first sprocket. Both ends of the pressure roller are rotatably sleeved within extension plates. Four extension plates for mounting the two pressure rollers are fixedly connected to the two side walls at both ends of the base. One end of the pressure roller is fixedly connected to a second sprocket. The second sprockets on the two pressure rollers are located on both sides of the base. The two second sprockets are respectively meshed with the two first sprockets through two chains. The top of each chain is provided with a locking component.

[0011] Preferably, the locking assembly includes a horizontal plate fixedly connected to the top side plate of the base, a rectangular sliding column slidably sleeved at the center of the horizontal plate, a "U"-shaped support plate fixedly connected to the bottom of the rectangular sliding column, a locking sprocket rotatably connected to the bottom of the support plate, the locking sprocket meshing with a chain, a locking spring sleeved on the rectangular sliding column, and the two ends of the locking spring being fixedly connected to the bottom wall plate of the horizontal plate and the top wall plate of the support plate, respectively.

[0012] Preferably, the reciprocating screw has a reciprocating screw groove, a sliding box is slidably sleeved on the outer side of the reciprocating screw, a reciprocating slider is slidably connected in the reciprocating screw groove, a rotating column is fixedly connected to the reciprocating slider, the rotating column is rotatably sleeved in the sliding box, the sliding box is slidably mounted on the reciprocating screw through the reciprocating screw groove and the reciprocating slider, a heat dissipation groove is provided at the bottom of the sliding box, a mounting box is provided at the bottom of the heat dissipation groove, a plurality of temperature probes are fixedly connected to the bottom of the mounting box away from the sliding box, a rectangular air inlet is connected to both ends of the heat dissipation groove, a rectangular ring tube is connected to the rectangular air inlet, and two rectangular ring tubes are respectively fixedly connected to the two side walls of the sliding box.

[0013] Preferably, the base has two buffer grooves inside, which are located on the two side walls of the mounting groove. Both ends of the buffer groove are provided with spring winding rollers, and both ends of the rectangular ring tube are fixedly connected with sealing strips. The ends of the two sealing strips away from the rectangular ring tube are respectively wrapped around the two spring winding rollers. Both ends of the heat dissipation groove are provided with air outlet holes.

[0014] Preferably, air chambers are provided inside both ends of the base, and the two air chambers are located on both sides of the mounting groove. The fixed end of the telescopic rod is fixedly connected to the top of the air chamber, and the telescopic end of the telescopic rod is fixedly connected to the rectangular slide plate. The temperature measuring needle is fixedly connected to the top center of the rectangular slide plate. The rectangular slide plate is slidably connected inside the air chamber, and a collar is fixedly connected to the bottom of the air chamber. The temperature measuring needle is slidably sleeved inside the collar.

[0015] Preferably, a U-shaped air outlet pipe is connected to the top of the air chamber near the mounting groove. The end of the air outlet pipe away from the air chamber is connected to the buffer groove. An air inlet pipe is connected to the top of the air chamber away from the mounting groove. One-way valves are installed in both the air inlet pipe and the air outlet pipe. Mounting blocks are fixedly connected to the center of both ends of the base. Connecting rods are fixedly connected to both sides of the bottom of the mounting block away from the base. A scraper is fixedly connected to the end of the connecting rod away from the mounting block. The scraper extends to the center of the end of the extension plate away from the base. A connecting rod is fixedly connected to the end of the scraper away from the connecting rod. The connecting rod is fixedly connected to the center of the end of the extension plate away from the base.

[0016] A method for using an asphalt pavement paving temperature detector, the method comprising the following steps:

[0017] Step 1: First, use bolts to fix the device to the road roller through the holes and slots set on the mounting plate. Then, control the extension column to extend, so that the extension column drives the base to descend until the roller contacts the asphalt pavement.

[0018] Step 2: During the compaction of the asphalt pavement by the road roller, the temperature of the asphalt pavement is measured by a temperature probe. During this process, the reciprocating screw will rotate, and the rotation of the reciprocating screw will drive the temperature probe to move through the sliding box. The temperature probe will detect different positions of the asphalt pavement.

[0019] Step 3: When it is necessary to detect the internal temperature of the asphalt pavement, stop the operation of the road roller, and then control the extension rod to extend so that the temperature measuring needle is inserted into the asphalt pavement, so that the temperature measuring needle can detect the internal temperature of the asphalt pavement.

[0020] The beneficial effects of this invention are:

[0021] 1. By setting up a temperature probe, the movement trajectory of the temperature probe will be sinusoidal about the midpoint of the reciprocating screw when the road roller moves in a straight line. This allows the temperature probe to measure the temperature at different locations on the asphalt pavement, increasing the range of the temperature probe's measurement of the asphalt pavement. By increasing the area for measuring the temperature of the asphalt pavement, technicians can gain a more comprehensive understanding of the temperature condition of the asphalt pavement.

[0022] 2. This invention, through the arrangement of the installation components, ensures a tight fit between the pressure roller and the asphalt pavement, thereby effectively limiting the distance between the temperature probe and the asphalt pavement. This avoids significant deviations in the temperature measurement of the asphalt pavement caused by excessive distance between the temperature probe and the ground, thus improving the accuracy of the temperature measurement of the asphalt pavement. At the same time, by using a road roller to drive the device to inspect the asphalt pavement, the workload of technicians is effectively reduced, avoiding the need for technicians to measure the temperature of the asphalt pavement on the scorching hot surface.

[0023] 3. This invention utilizes a telescopic rod. The descent of the telescopic rod causes the rectangular sliding plate to descend. This descent allows air to be drawn from the outside through the air intake pipe into the chamber above the rectangular sliding plate. Simultaneously, it also causes the temperature-sensing needle to descend, penetrating the interior of the asphalt pavement. This allows the needle to detect the internal temperature of the asphalt pavement, facilitating real-time monitoring of different processes during asphalt compaction by technicians, and enabling them to determine whether the asphalt pavement needs further compaction. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is the present invention. Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0027] Figure 3 This is a bottom view of the overall structure of the invention;

[0028] Figure 4 This is a cross-sectional view of the air outlet pipe of the present invention;

[0029] Figure 5 This is the present invention. Figure 4 The diagram shown is an enlarged view of the structure of section B.

[0030] Figure 6 This is a schematic cross-sectional view of the rectangular vertical plate of the present invention;

[0031] Figure 7 This is a schematic diagram of the connection structure between the reciprocating lead screw and the first sprocket of the present invention;

[0032] Figure 8 This is a cross-sectional view of the buffer pool structure of the present invention;

[0033] Figure 9 This is a cross-sectional schematic diagram of the reciprocating lead screw of the present invention;

[0034] Figure 10 This is the present invention. Figure 9 The diagram shows an enlarged view of section C.

[0035] Figure 11 This is a schematic diagram of the connection structure between the spring take-up roller and the sealing strip of the present invention;

[0036] Figure 12 This is a cross-sectional schematic diagram of the air cavity structure of the present invention.

[0037] In the diagram: 1. Base; 2. Rectangular upright plate; 3. Rectangular sleeve; 4. Telescopic column; 5. Mounting plate; 6. Pressure roller; 7. Chain; 8. First sprocket; 9. Second sprocket; 10. Horizontal plate; 11. Rectangular sliding column; 12. Locking spring; 13. Support plate; 14. Locking sprocket; 15. Rectangular air groove; 16. Temperature probe; 18. Scraper; 19. Sliding box; 20. Reciprocating screw; 22. Collar; 23. Temperature measuring needle; 24. 25. Air chamber; 26. Telescopic rod; 27. Air outlet pipe; 28. Rectangular slide plate; 29. ​​Mounting box; 30. Pressure spring; 31. Rectangular air pipe; 32. Slide bar; 33. Rectangular slider; 34. Slide groove; 35. Heat dissipation groove; 36. Rectangular air inlet; 37. Rectangular ring pipe; 38. Sealing strip; 39. Buffer groove; 40. Rotating column; 41. Reciprocating slider; 42. Spring winding roller; 43. Air outlet round hole. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figure 1-12 As shown, an asphalt pavement paving temperature detector includes a base 1. A mounting assembly for mounting the base 1 onto a road roller is slidably installed on the top of the base 1. Pressure rollers 6 are rotatably mounted at both ends of the base 1. A reciprocating screw 20 is rotatably mounted at the center of the base 1, and the reciprocating screw 20 is connected to the two pressure rollers 6. Multiple temperature probes 16 for measuring the temperature of the asphalt pavement are slidably mounted on the reciprocating screw 20. Temperature measuring needles 23 for measuring the internal temperature of the asphalt pavement are slidably mounted inside both ends of the base 1. A heat dissipation assembly for dissipating heat from the temperature probes 16 is provided on the top of the temperature measuring needles 23. The temperature probes 16 are LETON HS-100V infrared thermometer probes.

[0040] As a technical optimization of the present invention, such as Figure 1 , Figure 4 and Figure 6 As shown, the mounting assembly includes a rectangular upright plate 2 fixedly connected to the center of the top of the base 1. A rectangular slider 32 is fixedly connected to one end of the rectangular upright plate 2 away from the base 1. The rectangular slider 32 is slidably fitted inside a rectangular sleeve 3. The rectangular sleeve 3 is slidably fitted to the outside of the rectangular upright plate 2 via the rectangular slider 32. A rectangular air pipe 30 is provided inside the rectangular upright plate 2. The two ends of the rectangular air pipe 30 pass through the top wall panel of the base 1 and the wall panel of the rectangular slider 32, respectively. Two sliding grooves 33 are provided inside the rectangular upright plate 2, located on both sides of the rectangular air pipe 30. A sliding rod 31 is slidably fitted inside the sliding groove 33. The top of the sliding rod 31 is fixedly connected to the inner top wall panel of the rectangular sleeve 3. The mounting assembly effectively allows the device to be installed on a road roller, facilitating temperature detection of the asphalt pavement during compaction.

[0041] As a technical optimization of the present invention, such as Figure 4 and Figure 6As shown, the bottom of the base 1 has an installation groove for installing the temperature probe 16. Both sides of the bottom of the installation groove have rectangular air slots 15 for gas flow. The bottom of the rectangular air pipe 30 passes through the top wall of the base 1 and communicates with the installation groove. A one-way air outlet valve is provided at the connection between the two. Both sides of the top of the rectangular sleeve 3 are provided with telescopic columns 4. The telescopic ends of the two telescopic columns 4 are fixedly connected to the top sides of the rectangular sleeve 3. The fixed ends of the two telescopic columns 4 are fixedly connected to the bottom sides of the mounting plate 5. The mounting plate 5 has multiple holes and slots for installing the base 1 on the road roller. An air hole is provided at the center of the top of the rectangular sleeve 3. A one-way air inlet valve is provided in the air hole. A pressure spring 29 is sleeved on the outside of the slide bar 31. The two ends of the pressure spring 29 are fixedly connected to the inner top of the rectangular sleeve 3 and the top wall of the rectangular slider 32, respectively. The one-way inlet valve allows outside gas to enter the rectangular sleeve 3 through the air hole, while the one-way outlet valve allows gas inside the rectangular sleeve 3 to enter the mounting groove.

[0042] As a technical optimization of the present invention, such as Figure 1-4 and Figure 6 The reciprocating screw 20 shown is rotatably installed in the mounting groove. The reciprocating screw 20 passes through both end plates of the mounting groove and is rotatably sleeved within them. Both ends of the reciprocating screw 20 are fixedly connected to a first sprocket 8. Both ends of the pressure roller 6 are rotatably sleeved within extension plates. Four extension plates for mounting the two pressure rollers 6 are fixedly connected to the side plates at both ends of the base 1. One end of each pressure roller 6 is fixedly connected to a second sprocket 9. The second sprockets 9 on the two pressure rollers 6 are located on both sides of the base 1. The two second sprockets 9 are respectively connected to the two first sprockets 8 via two chains 7. Each chain 7 has a locking assembly at its top. The arrangement of the pressure rollers 6 effectively transmits power to the reciprocating screw 20 via the chains 7, thereby causing the reciprocating screw 20 to rotate.

[0043] As a technical optimization of the present invention, such as Figure 1 and Figure 2 As shown, the locking assembly includes a horizontal plate 10 fixedly connected to the top side plate of the base 1. A rectangular slide post 11 is slidably sleeved at the center of the horizontal plate 10. A "U"-shaped support plate 13 is fixedly connected to the bottom of the rectangular slide post 11. A locking sprocket 14 is rotatably connected to the bottom of the support plate 13. The locking sprocket 14 is engaged with the chain 7. A locking spring 12 is sleeved on the rectangular slide post 11. The two ends of the locking spring 12 are fixedly connected to the bottom wall plate of the horizontal plate 10 and the top wall plate of the support plate 13, respectively. The locking sprocket 14 and the locking spring 12 ensure that the chain 7 is always taut, preventing the chain 7 from falling off.

[0044] As a technical optimization of the present invention, such as Figure 4-7 and Figure 9-10As shown, a reciprocating screw 20 has a reciprocating screw groove 35. A sliding box 19 is slidably sleeved on the outer side of the reciprocating screw 20. A reciprocating slider 41 is slidably connected inside the reciprocating screw groove 35. A rotating column 40 is fixedly connected to the reciprocating slider 41 and is rotatably sleeved inside the sliding box 19. The sliding box 19 is slidably mounted on the reciprocating screw 20 through the reciprocating screw groove 35 and the reciprocating slider 41. A heat dissipation groove 34 is provided at the bottom of the sliding box 19. A mounting box 28 is provided at the bottom of the heat dissipation groove 34. Multiple temperature probes 16 are fixedly connected to the bottom of the mounting box 28 away from the sliding box 19. Both ends of the heat dissipation groove 34 are connected to rectangular air inlets 36. The rectangular air inlets 36 are connected to rectangular ring pipes 37. The two rectangular ring pipes 37 are fixedly connected to the two side walls of the sliding box 19. The rectangular ring pipes 37 can limit the sliding box 19 on the one hand, and also dissipate heat by supplying gas to the heat dissipation groove 34 on the other hand.

[0045] As a technical optimization of the present invention, such as Figure 8 and Figure 11 As shown, the base 1 has two buffer grooves 39 inside, located on the two side walls of the mounting groove. Each buffer groove 39 has a winding roller 42 at both ends. A sealing strip 38 is fixedly connected to both ends of the rectangular annular tube 37. The ends of the two sealing strips 38 furthest from the rectangular annular tube 37 are respectively wound around the two winding rollers 42. Vent holes 43 are provided at both ends of the heat dissipation groove 34. The winding roller 42 contains a winding spring for winding the sealing strip 38, similar to the winding of a measuring tape. This technology is existing and will not be disclosed further here.

[0046] As a technical optimization of the present invention, such as Figure 3-4 and Figure 12 As shown, air chambers 24 are formed inside both ends of the base 1, located on opposite sides of the mounting groove. A fixed end of a telescopic rod 25 is fixedly connected to the top of each air chamber 24. The telescopic end of the telescopic rod 25 is fixedly connected to a rectangular sliding plate 27. A temperature-sensing needle 23 is fixedly connected to the center of the top of the rectangular sliding plate 27, which is slidably connected within the air chamber 24. A collar 22 is fixedly connected to the bottom of the air chamber 24, and the temperature-sensing needle 23 is slidably fitted within the collar 22. The temperature-sensing needle 23 is a GUNTER-370 model temperature-sensing needle, with a display for temperature display connected to its end. This technology is existing and will not be disclosed further here.

[0047] As a technical optimization of the present invention, such as Figure 1-4As shown, a U-shaped air outlet pipe 26 is connected to the top of the air chamber 24 near the mounting groove. The end of the air outlet pipe 26 away from the air chamber 24 is connected to the buffer groove 39. An air inlet pipe is connected to the top of the air chamber 24 away from the mounting groove. Both the air inlet pipe and the air outlet pipe 26 are equipped with one-way valves. Mounting blocks are fixedly connected to the center of both ends of the base 1. Connecting rods are fixedly connected to both sides of the bottom of the mounting blocks away from the base 1. A scraper 18 is fixedly connected to the end of the connecting rod away from the mounting block. The end of the scraper 18 away from the connecting rod extends to the center of the end of the extension plate away from the base 1. A connecting rod is fixedly connected to the end of the scraper 18 away from the connecting rod. The end of the connecting rod away from the scraper 18 is fixedly connected to the center of the end of the extension plate away from the base 1. The scraper 18 effectively prevents asphalt from sticking and remaining on the pressure roller 6. The one-way valve installed in the air inlet pipe allows outside gas to enter the air chamber 24, and the one-way valve installed in the air outlet pipe 26 allows gas in the air chamber 24 to enter the buffer tank 39.

[0048] A method for using an asphalt pavement paving temperature detector, the method comprising the following steps:

[0049] Step 1: First, fix the device to the road roller with bolts through the holes and slots set on the mounting plate 5. Then, control the extension column 4 to extend, so that the extension column 4 drives the base 1 to descend until the roller 6 contacts the asphalt pavement.

[0050] Step 2: During the compaction of the asphalt pavement by the road roller, the temperature of the asphalt pavement is measured by the temperature probe 16. During this process, the reciprocating screw 20 will rotate. The rotation of the reciprocating screw 20 will drive the temperature probe 16 to move through the sliding box 19. The temperature probe 16 will detect different positions of the asphalt pavement.

[0051] Step 3: When it is necessary to detect the internal temperature of the asphalt pavement, stop the operation of the road roller, and then control the extension rod 25 to extend so that the temperature measuring needle 23 is inserted into the asphalt pavement, so that the temperature measuring needle 23 can detect the internal temperature of the asphalt pavement.

[0052] In use, the device is first bolted to the road roller using the holes and slots on the mounting plate 5. Then, the telescopic column 4 is extended, causing the base 1 to descend until the roller 6 contacts the asphalt pavement. During the extension of the telescopic column 4, the base 1 descends via the rectangular sleeve 3 and the rectangular upright plate 2. As the base 1 descends, the roller 6 contacts the paved asphalt pavement. After the roller 6 contacts the ground, the rectangular sleeve 3 causes the pressure spring 29 to contract as the telescopic column 4 descends. This pressure spring 29 then applies a spring force to the base 1 via the rectangular slider 32 and the rectangular upright plate 2, increasing the contact force between the roller 6 and the asphalt pavement. This prevents the roller 6 from becoming suspended due to uneven asphalt pavement during the roller's movement. By ensuring close contact between the pressure roller 6 and the asphalt pavement, the distance between the temperature probe 16 and the asphalt pavement is effectively limited. This avoids a large deviation in the temperature measurement of the asphalt pavement caused by the excessive distance between the temperature probe 16 and the ground, thereby improving the accuracy of the temperature measurement of the asphalt pavement by the temperature probe 16.

[0053] During the compaction of the asphalt pavement by the road roller, the temperature probe 16 measures the temperature of the asphalt pavement. As the road roller moves, it pushes the roller 6 to roll against the asphalt pavement. The roller 6 initially flattens uneven sections of the asphalt pavement. Simultaneously, the asphalt adhering to the roller 6 is scraped off by the scraper 18 as the roller 6 rotates. With the rotation of the roller 6, the asphalt adhering to the roller 6 falls back onto the asphalt pavement through the scraper 18 at the end away from the connecting rod. The road roller then compacts the fallen asphalt, preventing it from adhering to the roller 6.

[0054] The rotation of the pressure roller 6 causes the second sprocket 9 to rotate as well. The second sprocket 9 then drives the first sprocket 8 to rotate via the chain 7. The rotation of the first sprocket 8 in turn drives the reciprocating screw 20 to rotate. After rotating, the reciprocating screw 20 drives the sliding box 19 to slide on the reciprocating screw 20 via the reciprocating slider 41 and the reciprocating screw groove 35. The sliding box 19 then drives the temperature probe 16 to move on the reciprocating screw 20. When the road roller moves in a straight line, the trajectory of the temperature probe 16 will be a sine curve about the midpoint of the reciprocating screw 20. This allows the temperature probe 16 to measure the temperature at different locations on the asphalt pavement, increasing the measurement range of the asphalt pavement. By increasing the area for measuring the temperature of the asphalt pavement, technicians can gain a more comprehensive understanding of the temperature condition of the asphalt pavement.

[0055] After compaction, it is often necessary to test the internal temperature of the asphalt pavement to observe whether it needs to be rolled again. At this time, the operation of the roller is stopped, and then the extension rod 25 is extended. When the extension rod 25 extends, it will drive the rectangular slide plate 27 to descend. The descent of the rectangular slide plate 27 will, on the one hand, allow the chamber above the rectangular slide plate 27 in the air chamber 24 to draw air from the outside through the air inlet pipe, and on the other hand, it will also drive the temperature measuring needle 23 to descend. After descending, the temperature measuring needle 23 will penetrate into the interior of the asphalt pavement, thereby allowing the temperature measuring needle 23 to detect the internal temperature of the asphalt pavement. This allows technicians to effectively monitor the different processes in the asphalt compaction process in real time, so as to determine whether the asphalt pavement needs to be rolled again.

[0056] After measuring the internal temperature of the asphalt pavement using the temperature measuring needle 23, the temperature measuring needle 23 is retracted into the air chamber 24 by the retraction of the telescopic rod 25. When the telescopic rod 25 retracts, it drives the temperature measuring needle 23 upward through the rectangular sliding plate 27. When the temperature measuring needle 23 rises, the collar 22 can scrape off the asphalt adhering to the periphery of the temperature measuring needle 23. At the same time, the collar 22 can also provide effective protection for the temperature measuring needle 23. Secondly, when the rectangular sliding plate 27 rises, it will also squeeze the gas in the air chamber 24, which will then enter the buffer groove 39 through the air outlet pipe 26, and then enter the heat dissipation groove 34 through the rectangular air inlet 36. After the gas enters the heat dissipation groove 34, it will cause the gas in the heat dissipation groove 34 to flow out through the air outlet hole 43. The air circulation in the heat dissipation groove 34 effectively reduces the temperature of the temperature measuring probe 16, preventing the temperature measuring probe 16 from burning out due to overheating.

[0057] As the sliding box 19 moves along the reciprocating screw 20, the rectangular annular tubes 37 fixed on both sides of the heat dissipation groove 34 slide within the buffer groove 39. The buffer groove 39 and the rectangular annular tubes 37 effectively position the sliding box 19, preventing it from rotating or shifting. This ensures that the temperature probe 16 remains vertically downward, effectively guaranteeing the temperature detection of the asphalt pavement. During the sliding of the rectangular annular tube 37, the sealing strips 38 on both sides of the rectangular annular tube 37 are wound and unwound on the winding roller 42. This effectively seals the connection between the buffer groove 39 and the mounting groove, preventing significant airflow loss from the buffer groove 39. Simultaneously, the sealing strips 38 also provide insulation for the buffer groove 39 and the air chamber 24, reducing the heat conducted from the asphalt pavement into the air chamber 24.

[0058] As the device moves with the road roller, the roller 6 vibrates when it passes over uneven areas of the asphalt pavement. During this vibration, the pressure spring 29 contracts, compressing the gas inside the rectangular sleeve 3. This gas then enters the mounting groove through the rectangular air pipe 30. Since the unevenness on the asphalt pavement is usually small, the rectangular slider 32 does not slide significantly, and the amount of gas flowing into the mounting groove is limited. This airflow helps dissipate heat within the mounting groove, preventing the temperature probe 16 from exceeding the actual temperature of the asphalt pavement due to prolonged exposure to high temperatures. This avoids inaccurate measurements from the temperature probe 16. Furthermore, the limited heat dissipation from the vibration within the mounting groove prevents excessive heat dissipation, ensuring that the temperature probe 16 does not measure a temperature significantly lower than the actual temperature.

[0059] After the asphalt pavement is compacted, the telescopic column 4 is controlled to retract, causing the base 1 to rise, which in turn separates the roller 6 from the ground. Then, the roller moves to move the device effectively, avoiding the situation where the temperature probe 16 is baked by the residual heat of the asphalt pavement after the temperature measurement of the asphalt pavement is completed.

[0060] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An asphalt pavement paving temperature detector comprising a base (1), characterized in that, The top of the base (1) is slidably provided with a mounting assembly for mounting the base (1) on a road roller, both ends of the base (1) are rotatably provided with a compression roller (6), the center of the base (1) is rotatably provided with a reciprocating screw rod (20), the reciprocating screw rod (20) is in transmission connection with the two compression rollers (6), the reciprocating screw rod (20) is slidably provided with a plurality of temperature measuring probes (16) for measuring the temperature of the asphalt pavement, both ends of the base (1) are slidably provided with a temperature measuring needle (23) for measuring the temperature inside the asphalt pavement, and the top of the temperature measuring needle (23) is provided with a heat dissipation assembly for dissipating heat of the temperature measuring probe (16). The mounting assembly comprises a rectangular vertical plate (2) fixedly connected to the top center of the base (1), one end of the rectangular vertical plate (2) away from the base (1) is fixedly connected with a rectangular sliding block (32), the rectangular sliding block (32) is slidably sleeved in a rectangular sleeve (3), the rectangular sleeve (3) is slidably sleeved on the outside of the rectangular vertical plate (2) through the rectangular sliding block (32), a rectangular air pipe (30) is formed in the inside of the rectangular vertical plate (2), both ends of the rectangular air pipe (30) penetrate through the top wall plate of the base (1) and the wall plate of the rectangular sliding block (32) respectively, two sliding grooves (33) are formed in the inside of the rectangular vertical plate (2), and the two sliding grooves (33) are located on the two sides of the rectangular air pipe (30) respectively; a sliding rod (31) is slidably sleeved in the sliding groove (33), and the top of the sliding rod (31) is fixedly connected to the inner top wall plate of the rectangular sleeve (3). Both ends of the base (1) are internally provided with an air cavity (24), and the two air cavities (24) are located on the two sides of the mounting groove respectively; the inner top of the air cavity (24) is fixedly connected with the fixed end of an extension rod (25), the extension end of the extension rod (25) is fixedly connected with a rectangular sliding plate (27), the temperature measuring needle (23) is fixedly connected to the top center of the rectangular sliding plate (27), the rectangular sliding plate (27) is slidably connected in the air cavity (24), and the bottom of the air cavity (24) is fixedly connected with a sleeve ring (22); the temperature measuring needle (23) is slidably sleeved in the sleeve ring (22).

2. The asphalt pavement paving temperature detector according to claim 1, characterized in that, The bottom of the base (1) is provided with a mounting groove for mounting the temperature measuring probe (16), both sides of the bottom of the mounting groove are provided with a rectangular air groove (15) for gas circulation, the bottom of the rectangular air pipe (30) penetrates through the top wall plate of the base (1) and communicates with the mounting groove, and a one-way air outlet valve is arranged at the communication position, both sides of the top of the rectangular sleeve (3) are provided with an extension column (4), the extension ends of the two extension columns (4) are fixedly connected to the top of the rectangular sleeve (3), the fixed ends of the two extension columns (4) are fixedly connected to the bottom of the mounting plate (5), a plurality of hole grooves for mounting the base (1) on the road roller are formed in the mounting plate (5), a gas hole is formed in the top center of the rectangular sleeve (3), a one-way air inlet valve is arranged in the gas hole, a pressurizing spring (29) is sleeved on the outside of the sliding rod (31), and both ends of the pressurizing spring (29) are fixedly connected to the inner top of the rectangular sleeve (3) and the top wall plate of the rectangular sliding block (32) respectively.

3. The asphalt pavement paving temperature detector according to claim 2, characterized in that, The reciprocating wire rod (20) is rotatably installed in the installation slot, penetrates through the two end wall plates of the installation slot and is rotatably sleeved in the two end wall plates of the installation slot, both ends of the reciprocating wire rod (20) are fixedly connected with the first chain wheels (8), both ends of the compression rollers (6) are rotatably sleeved in the extension plates, the four extension plates for installing the two compression rollers (6) are fixedly connected to the two side wall plates at the two ends of the base (1), one end of each compression roller (6) is fixedly connected with a second chain wheel (9), the second chain wheels (9) arranged on the two compression rollers (6) are located on the two sides of the base (1) respectively, and the two second chain wheels (9) are meshingly connected with the two first chain wheels (8) through the two chains (7). The top of each chain (7) is provided with a fastening assembly.

4. The asphalt pavement paving temperature detector according to claim 3, characterized in that, The fastening assembly comprises a cross plate (10) fixedly connected to the top side plate of the base (1), a rectangular slide column (11) slidably sleeved at the center of the cross plate (10), a "U"-shaped supporting plate (13) fixedly connected to the bottom of the rectangular slide column (11), a fastening sprocket (14) rotatably connected to the bottom of the supporting plate (13), the fastening sprocket (14) being meshingly connected with the chain (7), a fastening spring (12) sleeved on the rectangular slide column (11), and both ends of the fastening spring (12) being fixedly connected to the bottom wall plate of the cross plate (10) and the top wall plate of the supporting plate (13) respectively.

5. The asphalt pavement paving temperature detector according to claim 4, characterized in that, The reciprocating wire rod (20) is rotatably installed in the installation slot, penetrates through the two end wall plates of the installation slot and is rotatably sleeved in the two end wall plates of the installation slot, both ends of the reciprocating wire rod (20) are fixedly connected with the first chain wheels (8), both ends of the compression rollers (6) are rotatably sleeved in the extension plates, the four extension plates for installing the two compression rollers (6) are fixedly connected to the two side wall plates at the two ends of the base (1), one end of each compression roller (6) is fixedly connected with a second chain wheel (9), the second chain wheels (9) arranged on the two compression rollers (6) are located on the two sides of the base (1) respectively, and the two second chain wheels (9) are meshingly connected with the two first chain wheels (8) through the two chains (7). The top of each chain (7) is provided with a fastening assembly.

6. The asphalt pavement paving temperature detector according to claim 5, characterized in that, The reciprocating wire rod (20) is rotatably installed in the installation slot, penetrates through the two end wall plates of the installation slot and is rotatably sleeved in the two end wall plates of the installation slot, both ends of the reciprocating wire rod (20) are fixedly connected with the first chain wheels (8), both ends of the compression rollers (6) are rotatably sleeved in the extension plates, the four extension plates for installing the two compression rollers (6) are fixedly connected to the two side wall plates at the two ends of the base (1), one end of each compression roller (6) is fixedly connected with a second chain wheel (9), the second chain wheels (9) arranged on the two compression rollers (6) are located on the two sides of the base (1) respectively, and the two second chain wheels (9) are meshingly connected with the two first chain wheels (8) through the two chains (7). The top of each chain (7) is provided with a fastening assembly.

7. The asphalt pavement paving temperature detector according to claim 1, characterized in that, The side of the air cavity (24) top close to the installation groove is communicated with "U" shaped air outlet pipe (26), the end of air outlet pipe (26) away from air cavity (24) is communicated with buffer groove (39), the end of air cavity (24) top away from installation groove is communicated with air inlet pipe, one-way valve is arranged in air inlet pipe and air outlet pipe (26), the both ends of base (1) are fixedly connected with mounting block, the bottom of the end of mounting block away from base (1) is fixedly connected with connecting rod, the end of connecting rod away from mounting block is fixedly connected with scraping strip (18), the end of scraping strip (18) away from connecting rod extends to the end of extension plate away from base (1) center, the end of scraping strip (18) away from connecting rod is fixedly connected with connecting rod, the end of connecting rod away from scraping strip (18) is fixedly connected at the end of extension plate away from base (1) center.

8. The method of using a bituminous paving temperature detector according to claim 7, wherein, The use method comprises the following steps: Step one: first, the asphalt pavement paving temperature detector is fixed on the road roller by the bolt through the hole groove arranged on the mounting plate (5), then the telescopic column (4) is extended, so that the telescopic column (4) drives the base (1) to descend to the abutment of the compression roller (6) and the asphalt pavement; Step two: in the process of the road roller compaction of the asphalt pavement, the temperature of the asphalt pavement is measured by the temperature measuring probe (16), in the process, the reciprocating screw rod (20) will rotate, the reciprocating screw rod (20) rotates and drives the temperature measuring probe (16) to move through the sliding box (19), the temperature measuring probe (16) detects different positions of the asphalt pavement; Step three: when the temperature inside the asphalt pavement needs to be detected, the operation of the road roller is stopped, then the telescopic rod (25) is extended, so that the temperature measuring needle (23) is inserted into the asphalt pavement, so that the temperature measuring needle (23) detects the internal temperature of the asphalt pavement.

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