A highway asphalt paving apparatus

Abstract

This invention relates to the field of road construction technology, and more particularly to a highway asphalt paving device, comprising a support base, a storage box mounted on the support base, and a feed inlet on the storage box. In one embodiment, before asphalt paving, asphalt mixture is added to the storage box through the feed inlet for storage. A conveying cylinder is provided at the bottom of the support base, wherein a discharge port is provided at the bottom of the storage box for discharging asphalt material from the storage box into the conveying cylinder. A rotating drum is rotatably mounted inside the conveying cylinder, and spiral conveying blades are arranged opposite each other on the rotating drum. Several sets of discharge ends for discharging material are evenly distributed at the bottom of the conveying cylinder. The ends of the rotating drum are connected to a rotating mechanism that drives its rotation. This invention provides a wider asphalt paving range, and the evenly distributed discharge ports can simultaneously improve the uniformity of asphalt paving, resulting in higher road construction quality.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, and in particular to a highway asphalt paving equipment. Background Technology

[0002] Asphalt pavement refers to various types of pavement constructed by mixing road asphalt mixtures with mineral materials. Asphalt mixtures can improve the ability of paving aggregates to resist damage to the pavement from traffic and natural factors, making the pavement smooth, dust-free, impermeable, and durable.

[0003] In the prior art, such as the patent document with publication number CN114808642B, an asphalt mixture paving equipment and its construction method are disclosed. The patent document also discloses a base box with an opening at the bottom, several sets of rolling wheels rotatably installed on the two opposite side walls of the base box, a handle bracket set on the top of the base box for pushing the base box forward, and a storage cylinder installed on the top of the assembly box. The storage cylinder has openings on both the upper and lower sides. The base box is equipped with a paving mechanism for paving asphalt mixture. However, in actual application, since the road surface has a certain width, the prior art only uses a storage cylinder with an opening at the bottom for material discharge, which results in a small asphalt discharge range and uneven road surface paving. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a highway asphalt paving equipment.

[0005] The present invention provides a highway asphalt paving device, including a support base, a storage box on the support base, and a material inlet on the storage box; in one embodiment of this invention, before asphalt paving is carried out on the road surface, the asphalt mixture is added to the storage box through the material inlet for storage.

[0006] The bottom of the support base is equipped with a conveying cylinder, and the bottom of the storage box is equipped with a discharge port, which is used to discharge the asphalt material in the storage box into the conveying cylinder;

[0007] The conveying cylinder is rotatably arranged with a rotating drum, and spiral conveying blades are arranged opposite each other on the rotating drum. Several sets of material dropping ends are evenly arranged at the bottom of the conveying cylinder for material dropping. The end of the rotating drum is connected to the rotating mechanism that drives its rotation.

[0008] Preferably, two sets of walking wheels are arranged opposite each other at the bottom of the support base. The two walking wheels on the front side are fixedly connected by a rotating shaft, and the rotating shaft is fixedly connected to the output end of the first motor arranged on the support base through a first belt drive mechanism.

[0009] Telescopic brackets are arranged opposite each other on the front side of the support base. The telescopic brackets are equipped with camera mechanisms facing the road surface. The telescopic brackets on both sides are connected to the adjustment mechanism that drives them to extend and retract for length adjustment.

[0010] Preferably, the adjustment mechanism includes an adjustment box disposed on the front side of the support base, an adjustment groove is provided in the adjustment box, and two sets of first rack plates respectively fixedly connected to the telescopic bracket are slidably disposed in the adjustment groove. The first rack plates mesh with gears rotatably disposed in the adjustment groove, and the gears are fixedly connected to the output end of a second motor disposed on the outside of the adjustment box.

[0011] Preferably, the front side of the support base is provided with two sets of sliding grooves, and the adjustment box is fixedly connected to the slide seat that is slidably arranged in the sliding groove. The support base is also provided with a first cylinder, and the drive end of the first cylinder is fixedly connected to the adjustment box.

[0012] Preferably, a sealing plate is slidably arranged between the discharge ports, and a discharge groove for communicating with the discharge ports is opened between the sealing plates. The sealing plate is connected to a pushing mechanism that drives it to slide back and forth between the discharge ports.

[0013] Preferably, the pushing mechanism includes an L-shaped bracket fixedly connected to the sealing plate, and second rack plates slidably arranged on both sides of the storage box. The second rack plates on both sides are fixedly connected to the L-shaped bracket through support rods. The second rack plates mesh with half gears rotatably arranged on the side wall of the storage box. The half gears on both sides are connected to a rotating mechanism that drives them to rotate. An elastic mechanism connected to the L-shaped bracket is also arranged on the storage box.

[0014] Preferably, the rotating mechanism includes a third motor arranged on one side of the storage box, and a rotating rod rotatably arranged in the storage box and fixedly connected to the half gears on both sides, and the driving end of the third motor is fixedly connected to the half gear on the corresponding side.

[0015] Several sets of stirring rods are evenly distributed on the rotating rod.

[0016] Preferably, the elastic mechanism includes several sets of guide rods arranged on the storage box, an L-shaped bracket slidably arranged on the guide rods, a return spring arranged on the guide rod, one end of the return spring being fixedly connected to the storage box and the other end being fixedly connected to the L-shaped bracket.

[0017] Preferably, recycling bins are arranged opposite each other on both sides of the support base, and the end of the conveying cylinder is connected to the recycling bins through a recycling hole;

[0018] The recycling bin is equipped with a rotatable impeller, which is fixedly connected to the end of the rotating drum. Several sets of blades are arranged in a circumferential array on the impeller.

[0019] One of the impellers is connected to the half-gear drive via a second belt drive mechanism.

[0020] Preferably, the rotating drum is provided with several sets of exhaust holes at intervals. The rotating drum and the impeller are both hollow structures. The ends of the impellers on both sides are rotatably connected to the air intake pipes, which are connected to the air intake mechanism.

[0021] The air intake mechanism includes piston cylinders arranged opposite each other on both sides of the storage box. A piston is slidably arranged inside the piston cylinder. The piston is fixedly connected to the support plate through the piston rod. The support plate is fixedly arranged on the support rod. An air supply pipe is arranged on one side of the piston cylinder, and an air intake pipe is connected to the other side of the piston cylinder.

[0022] Compared with related technologies, the highway asphalt paving equipment provided by the present invention has the following beneficial effects:

[0023] This invention provides a highway asphalt paving device. During asphalt paving, the asphalt mixture in the storage tank falls into the conveying cylinder through the discharge port under the action of gravity. Then, the rotating mechanism drives the drum to rotate, and the rotating drum simultaneously drives the spiral conveying blades to rotate. The spiral conveying blades arranged on both sides of the drum then convey the asphalt material falling to the middle of the conveying cylinder to both sides. During the asphalt conveying process, the asphalt material in the conveying cylinder falls onto the road surface to be paved through the discharge port under the action of gravity. Compared with the existing technology that only uses one opening for material discharge, the asphalt paving range of this invention is wider. Through the evenly distributed discharge ports, the uniformity of asphalt paving can also be improved simultaneously, resulting in higher road construction quality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a preferred embodiment of a highway asphalt paving device provided by the present invention.

[0025] Figure 2 for Figure 1 The diagram shows the structure of a highway asphalt paving equipment. Figure 1 ;

[0026] Figure 3 for Figure 1 The diagram shows the structure of a highway asphalt paving equipment. Figure 2 ;

[0027] Figure 4 for Figure 1 The diagram shows the structure of a highway asphalt paving equipment. Figure 3 ;

[0028] Figure 5 for Figure 1 The diagram shows the structure of a highway asphalt paving equipment. Figure 4 ;

[0029] Figure 6 for Figure 1 The diagram shows the structure of the regulating box in a highway asphalt paving device.

[0030] Labels in the diagram: 1. Support base; 2. Storage box; 3. Piston cylinder; 4. Recycling box; 5. Second rack plate; 6. Discharge port; 7. Adjustment box; 8. Feeding cylinder; 9. Stirring rod; 101. Traveling wheel; 102. First motor; 103. First belt drive mechanism; 104. Rotating shaft; 201. Feed inlet; 301. Air supply pipe; 302. Piston rod; 303. Support rod; 304. Air inlet pipe; 305. Support plate; 306. Guide rod; 307. Return spring; 308. L-shaped bracket; 309. Second... Belt drive mechanism; 401, impeller; 402, blade; 501, half gear; 601, sealing plate; 602, discharge chute; 701, second motor; 702, adjusting groove; 703, slide chute; 704, first cylinder; 705, slide block; 706, telescopic bracket; 707, camera mechanism; 708, first rack plate; 709, gear; 801, rotating drum; 802, exhaust port; 803, spiral conveyor blade; 804, recovery hole; 805, discharge end; 901, rotating rod; 902, third motor. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0032] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0033] Example 1

[0034] Please see Figures 1 to 2 The present invention provides a highway asphalt paving device, which includes a support base 1, a storage box 2 on the support base 1, and a feed inlet 201 on the storage box 2. In one embodiment of the present invention, before asphalt paving is carried out on the road surface, asphalt mixture is added to the storage box 2 through the feed inlet 201 for storage.

[0035] The bottom of the support base 1 is provided with a conveying cylinder 8, and the bottom of the storage box 2 is provided with a discharge port 6, which is used to discharge the asphalt material in the storage box 2 into the conveying cylinder 8.

[0036] A rotating drum 801 is rotatably arranged inside the conveying cylinder 8. Spiral conveying blades 803 are arranged opposite each other on the rotating drum 801. Several sets of material discharge heads 805 are evenly distributed at the bottom of the conveying cylinder 8. The end of the rotating drum 801 is connected to a rotating mechanism that drives its rotation. It can be explained that during asphalt paving, the asphalt mixture in the storage box 2 falls into the conveying cylinder 8 through the discharge port 6 under the action of gravity. Then, the rotating mechanism drives the rotating drum 801 to rotate, and the rotating drum 801 synchronously drives the spiral conveyor during its rotation. The conveying blades 803 rotate, and the asphalt material falling into the middle of the conveying cylinder 8 is conveyed to both sides by the spiral conveying blades 803 arranged on both sides of the rotating cylinder 801. During the asphalt conveying process, the asphalt material in the conveying cylinder 8 falls onto the road surface to be paved through the discharge port 6 under the action of gravity. Compared with the existing technology that only uses one opening for material discharge, the asphalt paving range of this embodiment is wider. Through the evenly arranged discharge ports 6, the uniformity of asphalt paving can also be improved at the same time, and the construction quality of the road is higher.

[0037] Example 2

[0038] Based on Example 1, please refer to Figures 3-4 The support base 1 has two sets of traveling wheels 101 arranged opposite each other at its bottom. The two traveling wheels 101 located on the front side are fixedly connected by a rotating shaft 104. The rotating shaft 104 is fixedly connected to the output end of the first motor 102 arranged on the support base 1 through a first belt transmission mechanism 103. It can be explained that when asphalt paving is carried out on the road surface, the first motor 102 is started. The output end of the first motor 102 drives the rotating shaft 104 to rotate through the first belt transmission mechanism 103. During the rotation of the rotating shaft 104, the traveling wheels 101 are rotated simultaneously, thereby realizing the automated movement of the asphalt paving equipment.

[0039] As a further embodiment, telescopic brackets 706 are arranged opposite each other on the front side of the support base 1. Camera mechanisms 707 are arranged on the telescopic brackets 706 facing the road surface. The telescopic brackets 706 on both sides are connected to an adjustment mechanism that drives their extension and retraction for length adjustment. It can be explained that when the asphalt paving equipment travels on the road surface, in order to ensure that the equipment travels along the center line of the road surface, the extension length of the telescopic brackets 706 on both sides is adjusted so that the camera mechanisms 707 on both sides can identify the edge line of the road. When the camera mechanisms 707 on both sides identify the road edge line as being in the center of the image, the asphalt paving equipment is at the center of the road surface, effectively avoiding errors during asphalt paving.

[0040] Furthermore, the adjustment mechanism includes an adjustment box 7 located on the front side of the support base 1. An adjustment groove 702 is provided in the adjustment box 7. Two sets of first rack plates 708, which are respectively fixedly connected to the telescopic brackets 706, are slidably arranged in the adjustment groove 702. The first rack plates 708 mesh with gears 709 rotatably arranged in the adjustment groove 702. The gears 709 are fixedly connected to the output end of a second motor 701 located on the outside of the adjustment box 7. It can be explained that when adjusting the position of the camera mechanisms 707 on both sides, the second motor 701 is started to drive the gears 709 to rotate. During the rotation, the gears 709 mesh with the first rack plates 708 to move the telescopic brackets 706 on both sides, thereby realizing the position adjustment of the camera mechanisms 707.

[0041] Two sets of sliding grooves 703 are arranged opposite each other on the front side of the support base 1. The adjustment box 7 is fixedly connected to the slide seat 705 that is slidably arranged in the sliding groove 703. The support base 1 is also equipped with a first cylinder 704, and the driving end of the first cylinder 704 is fixedly connected to the adjustment box 7. It can be explained that when adjusting the height position of the camera mechanism 707, the first cylinder 704 is activated, and the driving end of the first cylinder 704 drives the adjustment box 7 to rise and fall, so as to realize the height adjustment of the first cylinder 704.

[0042] Please see Figure 3 A sealing plate 601 is slidably arranged between the discharge ports 6, and a discharge groove 602 for communicating with the discharge ports 6 is opened between the sealing plates 601. The sealing plates 601 are connected to a pushing mechanism that drives them to slide back and forth between the discharge ports 6. It can be explained that when the asphalt material falls from the storage tank 2 toward the discharge port 6, in order to avoid the asphalt material falling into the conveying cylinder 8 at once and causing excessive material discharge, this embodiment uses a pushing mechanism to reciprocate to push the sealing plate 601 in the discharge port 6. When the discharge chute 602 and the discharge port 6 are in a connected state, the asphalt material in the storage tank 2 passes through the discharge port 6 and the discharge chute 602 and falls into the conveying cylinder 8. When the discharge chute 602 and the discharge port 6 are in a misaligned state, the sealing plate 601 seals the discharge port 6, so that the material in the storage tank 2 cannot pass through the discharge port 6. In this embodiment, the sealing plate 601 is used to intermittently seal the discharge port 6 to prevent the asphalt material from falling from the storage tank 2 into the conveying cylinder 8 all at once.

[0043] The pushing mechanism includes an L-shaped bracket 308 fixedly connected to the sealing plate 601. Second rack plates 5 are slidably arranged on both sides of the storage box 2, and the second rack plates 5 on both sides are fixedly connected to the L-shaped bracket 308 via support rods 303. The second rack plates 5 mesh with half-gears 501 rotatably arranged on the side wall of the storage box 2. The half-gears 501 on both sides are connected to a rotating mechanism that drives their rotation. An elastic mechanism connected to the L-shaped bracket 308 is also provided on the storage box 2. It can be explained that the rotating mechanism drives the half-gears 501 to rotate. During rotation, the half-gears 501 mesh with the second rack plates 5, causing the support rods 303 to move. During this movement, the support rods 303 move the sealing plate 601 via the L-shaped bracket 308. When the half-gears 501 lose mesh with the second rack plates 5, the elastic mechanism causes the second rack plates 5 to reset.

[0044] Please see Figure 2 and Figure 4 The rotating mechanism includes a third motor 902 arranged on one side of the storage box 2. A rotating rod 901 fixedly connected to the half gears 501 on both sides is rotatably arranged in the storage box 2. The driving end of the third motor 902 is fixedly connected to the half gear 501 on the corresponding side. It can be explained that when the third motor 902 is started, the third motor 902 drives the half gear 501 on the other side to rotate synchronously through the rotating rod 901 while driving the half gear 501 on one side to rotate.

[0045] Furthermore, several sets of stirring rods 9 are evenly arranged on the rotating rod 901; it can be explained that when the rotating rod 901 is driven to rotate, the rotating rod 901 synchronously drives the stirring rods 9 to rotate, so as to achieve the mixing and stirring treatment of the asphalt material in the storage box 2 and improve the asphalt mixing quality.

[0046] The elastic mechanism includes several sets of guide rods 306 arranged on the storage box 2. An L-shaped bracket 308 is slidably arranged on the guide rods 306. A return spring 307 is arranged on the guide rods 306. One end of the return spring 307 is fixedly connected to the storage box 2, and the other end is fixedly connected to the L-shaped bracket 308. It can be explained that during the transfer process, the L-shaped bracket 308 synchronously drives the return spring 307 to stretch, and the return spring 307 drives the L-shaped bracket 308 to return to its original position.

[0047] The support base 1 has recycling bins 4 arranged opposite each other on both sides. The end of the conveying cylinder 8 is connected to the recycling bin 4 through the recycling hole 804. Specifically, the asphalt that does not completely fall onto the road surface through the discharge end 805 in the conveying cylinder 8 is finally stored in the recycling bin 4 through the recycling hole 804 for reuse.

[0048] As a further embodiment, a rotatable impeller 401 is rotatably arranged inside the recycling tank 4. The impeller 401 is fixedly connected to the end of the rotating drum 801. Several sets of blades 402 are arranged in a circumferential array on the impeller 401. It can be explained that during the rotation of the rotating drum 801, the impeller 401 is driven to rotate, and the impeller 401 synchronously drives the blades 402 to rotate, which pushes the asphalt material that enters the recycling tank 4 through the recycling hole 804 to one side of the recycling tank 4, so asphalt material is not piled up at the recycling hole 804 and is more uniform.

[0049] One side impeller 401 is connected to the half gear 501 via the second belt drive mechanism 309; it can be explained that the half gear 501 drives the impeller 401 to rotate via the second belt drive mechanism 309 during rotation.

[0050] Specifically, the rotating drum 801 is provided with several sets of exhaust holes 802 at intervals. Both the rotating drum 801 and the impeller 401 are hollow structures. The ends of the impellers 401 on both sides are rotatably connected to air inlet pipes 304, which are connected to the air inlet mechanism. It can be explained that in order to avoid the material discharge end 805 from becoming blocked, the air inlet mechanism supplies air into the rotating drum 801 through the air inlet pipes 304 during the rotation of the rotating drum 801. The gas is blown out through the exhaust holes 802. When the material discharge end 805 becomes blocked, the exhaust holes 802 accelerate the discharge of material from the material discharge end 805 based on the blowing force of the exhaust holes 802. At the same time, the exhaust of the exhaust holes 802 in the conveying drum 8 can also improve the mixing effect of asphalt.

[0051] The air intake mechanism includes piston cylinders 3 arranged opposite to each other on both sides of the storage box 2. A piston is slidably arranged inside the piston cylinder 3. The piston is fixedly connected to the support plate 305 through the piston rod 302. The support plate 305 is fixedly arranged on the support rod 303. An air supply pipe 301 is arranged on one side of the piston cylinder 3. A one-way valve limited to air intake is provided between the air supply pipe 301 and the piston cylinder 3. An air intake pipe 304 is connected to the other side of the piston cylinder 3. A one-way valve limited to exhaust is arranged between the air intake pipe 304 and the piston cylinder 3. It can be explained that when the support rod 303 reciprocates, it synchronously drives the piston to move in the piston cylinder 3. At this time, the piston cylinder 3 draws in the outside air through the air supply pipe 301 and then transports it to the rotating drum 801 through the air intake pipe 304.

[0052] The working principle of the asphalt paving equipment provided by this invention is as follows: When paving the road surface with asphalt, by adjusting the extension length of the telescopic supports 706 on both sides, the camera mechanisms 707 on both sides identify the edge line of the road. When the camera mechanisms 707 on both sides identify the edge line of the road as being in the center of the image, the asphalt paving equipment is in the center of the road surface. The pushing mechanism reciprocates to push the sealing plate 601 to slide in the discharge port 6. When the discharge trough 602 is in a connected state with the discharge port 6, the asphalt material in the storage box 2 passes through the discharge port 6 and the discharge trough 602 and falls into the conveying cylinder 8. Then, the rotating mechanism drives the rotating cylinder 801 to rotate. During the rotation of the rotating cylinder 801, the spiral conveying blades 80 are driven synchronously. 3. The rotating drum 801 rotates, and the spiral conveying blades 803 arranged on both sides of the rotating drum 801 transport the asphalt material falling into the middle of the conveying drum 8 to both sides. During the asphalt conveying process, the asphalt material in the conveying drum 8 falls onto the road surface to be paved through the discharge port 6 under the action of gravity. Asphalt in the conveying drum 8 that does not completely fall onto the road surface through the discharge end 805 is finally stored in the recycling box 4 through the recycling hole 804. During the rotation of the rotating drum 801, the air intake mechanism supplies air into the rotating drum 801 through the air intake pipe 304. The gas is blown out through the exhaust hole 802. When the discharge end 805 is blocked, the exhaust hole 802 accelerates the discharge of the discharge end 805 based on the blowing force of the discharge end 805.

[0053] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0054] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A highway asphalt paving device, comprising a support base (1), characterized in that, A storage box (2) is installed on the support base (1), and an inlet (201) is provided on the storage box (2); before the asphalt is laid on the road surface, the asphalt mixture is added to the storage box (2) through the inlet (201) for storage. The support base (1) is provided with a conveying cylinder (8) at the bottom, wherein the storage box (2) is provided with a discharge port (6) at the bottom, and the discharge port (6) is used to discharge the asphalt material in the storage box (2) into the conveying cylinder (8); A rotating drum (801) is rotatably arranged inside the conveying cylinder (8). Spiral conveying blades (803) are arranged opposite each other on the rotating drum (801). Several sets of material dropping ends (805) for material dropping are evenly arranged at the bottom of the conveying cylinder (8). The end of the rotating drum (801) is connected to a rotating mechanism that drives its rotation. A sealing plate (601) is slidably arranged between the discharge ports (6). A discharge groove (602) for communicating with the discharge ports (6) is opened between the sealing plates (601). The sealing plate (601) is connected to a pushing mechanism that drives it to slide back and forth between the discharge ports (6). The pushing mechanism includes an L-shaped bracket (308) fixedly connected to the sealing plate (601). Second rack plates (5) are slidably arranged opposite each other on both sides of the storage box (2). The second rack plates (5) on both sides are connected to the L-shaped bracket through the support rod (303). (308) Fixed connection; wherein, the second rack plate (5) meshes with the half gear (501) rotatably arranged on the side wall of the storage box (2), the two half gears (501) are connected to the rotating mechanism that drives them to rotate, the storage box (2) is also provided with an elastic mechanism connected to the L-shaped bracket (308), the elastic mechanism includes several sets of guide rods (306) arranged on the storage box (2), the L-shaped bracket (308) is slidably arranged on the guide rod (306), the guide rod (306) is provided with a return spring (307), one end of the return spring (307) is fixedly connected to the storage box (2), and the other end is fixedly connected to the L-shaped bracket (308), the support base (1) is provided with recycling boxes (4) on both sides, and the end of the conveying cylinder (8) is connected to the recycling box (4) through the recycling hole (804); Inside the recycling box (4), a rotatable impeller (401) is arranged. The impeller (401) is fixedly connected to the end of the rotating drum (801). Several sets of blades (402) are arranged in a circumferential array on the impeller (401). One side impeller (401) is connected to the half gear (501) through the second belt drive mechanism (309). Several sets of exhaust holes (802) are arranged at intervals on the drum (801). The drum (801) and the impeller (401) are both hollow structures. The ends of the two impellers (401) are rotatably connected to the air intake pipe (304), which is connected to the air intake mechanism. The air intake mechanism includes piston cylinders (3) arranged on opposite sides of the storage box (2). A piston is slidably arranged inside the piston cylinder (3). The piston is fixedly connected to the support plate (305) via the piston rod (302). The support plate (305) is fixedly arranged on the support rod (303). An air supply pipe (301) is arranged on one side of the piston cylinder (3), and an air intake pipe (304) is connected to the other side of the piston cylinder (3). A one-way valve limited to air intake is provided between the air supply pipe (301) and the piston cylinder (3). The other side of the piston cylinder (3) is connected to the air intake pipe (304), and a one-way valve limited to exhaust is arranged between the air intake pipe (304) and the piston cylinder (3).

2. The highway asphalt paving equipment according to claim 1, characterized in that, Two sets of walking wheels (101) are arranged opposite each other on the bottom of the support base (1). The two walking wheels (101) on the front side are fixedly connected by a rotating shaft (104). The rotating shaft (104) is fixedly connected to the output end of the first motor (102) arranged on the support base (1) through the first belt drive mechanism (103). Telescopic brackets (706) are arranged opposite each other on the front side of the support base (1). A camera mechanism (707) is arranged on the telescopic brackets (706) facing the road surface. The telescopic brackets (706) on both sides are connected to the adjustment mechanism that drives them to extend and retract for length adjustment.

3. The highway asphalt paving equipment according to claim 2, characterized in that, The adjustment mechanism includes an adjustment box (7) located on the front side of the support base (1). An adjustment groove (702) is provided in the adjustment box (7). Two sets of first rack plates (708) are slidably arranged in the adjustment groove (702) and fixedly connected to the telescopic bracket (706). The first rack plate (708) meshes with a gear (709) rotatably arranged in the adjustment groove (702). The gear (709) is fixedly connected to the output end of a second motor (701) located on the outside of the adjustment box (7).

4. The highway asphalt paving equipment according to claim 3, characterized in that, The front side of the support base (1) is provided with two sets of sliding grooves (703), and the adjustment box (7) is fixedly connected to the sliding seat (705) which is slidably arranged in the sliding groove (703). The support base (1) is also provided with a first cylinder (704), and the driving end of the first cylinder (704) is fixedly connected to the adjustment box (7).

5. The highway asphalt paving equipment according to claim 1, characterized in that, The rotating mechanism includes a third motor (902) arranged on one side of the storage box (2). A rotating rod (901) fixedly connected to the half gears (501) on both sides is rotatably arranged in the storage box (2). The driving end of the third motor (902) is fixedly connected to the half gear (501) on the corresponding side. Several sets of stirring rods (9) are evenly arranged on the rotating rod (901).

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