A semi-flexible pavement cement-based mortar pouring device and its pouring method

Abstract

The present invention discloses a semi-flexible pavement cement-based mortar pouring device and a pouring method thereof, comprising a pouring vehicle body, wherein the pouring vehicle body comprises a vehicle head, a vehicle frame connected to the vehicle head, a pouring carriage, and also comprises a pouring mechanism and a paving mechanism arranged on the pouring carriage. When the pouring vehicle body moves forward, the pouring mechanism pours cement-based mortar on the pavement, and then the paving mechanism paves the cement-based mortar. The semi-flexible pavement cement-based mortar pouring device and the pouring method thereof, by arranging a pouring mechanism in front and a paving mechanism in the back, enable the device to have the two functions of pouring and leveling, and identification devices are provided on the pouring mechanism and the paving mechanism. When the pouring pipe fittings and the paving assembly corresponding to the manhole cover position identify the manhole cover through the corresponding identification devices, the pouring pipe fittings do not perform a pouring operation on the manhole cover, and the paving assembly does not perform a leveling operation either.

Description

Technical Field

[0001] The present invention belongs to the technical field of semi-flexible pavement, in particular to a semi-flexible pavement cement-based mortar pouring device and a pouring method thereof. Background Art

[0002] Semi-flexible pavement is a new type of pavement that combines rigidity and flexibility. It has the advantages of asphalt pavement, good flexibility, strong crack resistance, and seamlessness, and cement concrete pavement, high rigidity, strong load-bearing capacity, and good rutting resistance. Its deflection value is only 1 / 5 to 1 / 2 of that of ordinary asphalt pavement, and its rutting resistance is more than 10 times that of ordinary asphalt pavement. It also has good water resistance, oil resistance, acid resistance and other functions, as well as good colorability. It can be used for repairing rutting diseases on old pavements and for new pavements. Due to its long service life and reduced maintenance frequency, it has significant social and economic benefits throughout its life cycle. The construction materials of semi-flexible pavement include asphalt mixture and cement The operation of pouring cement-based mortar during the construction process is also very important. Since manhole covers frequently appear on some sections of the road during the pavement construction process, and the pouring of cement-based mortar needs to avoid the manhole covers, in the existing technology, construction workers generally use pouring vehicles or mechanical equipment to pour large-scale and indiscriminately on the road section. In this process, the manhole covers will also be covered. Afterwards, the construction workers need to manually remove the cement-based mortar covering the manhole covers, or the construction workers manually fill and pour cement-based mortar to avoid the manhole covers. The above two conventional operation methods are relatively time-consuming and reduce the construction efficiency of semi-flexible pavements. Summary of the Invention

[0003] Purpose of the invention: To provide a semi-flexible pavement cement-based mortar pouring device and a pouring method thereof, so as to solve the problem in the prior art that construction workers generally first use pouring vehicles or mechanical equipment to cast a large area of the road section indiscriminately, and in this process the manhole covers will also be covered. Afterwards, the construction workers need to manually remove the cement-based mortar covering the manhole covers, or the construction workers manually fill and pour cement-based mortar to avoid the manhole cover position. The above two conventional operation methods are relatively time-consuming and reduce the construction efficiency of the semi-flexible pavement.

[0004] Technical solution:

[0005] A semi-flexible pavement cement-based mortar pouring device and pouring method thereof, comprising a pouring vehicle body, the pouring vehicle body comprising a vehicle head, a vehicle frame connected to the vehicle head, a pouring carriage for loading cement-based mortar provided on the vehicle frame, a stirring device provided in the pouring carriage, and a pouring mechanism and a paving mechanism provided on the pouring carriage, the pouring mechanism being connected to a discharge port provided at the bottom of the pouring carriage and being located in front of the paving mechanism. When the pouring vehicle body moves forward, the pouring mechanism pours cement-based mortar on the pavement, and then the paving mechanism paves the cement-based mortar.

[0006] The pouring mechanism includes a plurality of pouring pipes arranged along the width direction of the pouring carriage. The cement-based mortar in the pouring carriage is poured onto the road surface through the pouring pipes. The pouring pipes include pipes and switch pieces for opening and closing the pipes. A first identification device is provided in front of each pouring pipe under the pouring carriage. The first identification device is used to identify the position of a manhole cover on the pouring road surface. When any of the first identification devices identifies a manhole cover, the switch piece of the pouring pipe behind the first identification device closes the corresponding pipe.

[0007] The paving mechanism includes several paving components along the width direction of the casting carriage, and the paving components include paving plates and lifting components for controlling the lifting of the paving plates. A second identification device is provided in front of each paving component under the casting carriage. The second identification device is used to identify the position of the manhole cover on the casting road surface. When any of the second identification devices identifies the manhole cover, the lifting component corresponding to the paving component behind the second identification device raises the corresponding paving plate.

[0008] In a further embodiment, the pipeline includes a telescopic pipeline and a fixed pipeline, one end of the telescopic pipeline is fixed to the casting carriage and connected to the discharge port, and the other end is connected to the fixed pipeline;

[0009] The switch element includes a solenoid valve, the first identification device includes a first metal detector and is located on the front side of the pipeline, the solenoid valve is electrically connected to the first metal detector, and the solenoid valve is arranged on the fixed pipeline.

[0010] In a further embodiment, the paving plate is connected to a bracket, the bracket includes a transverse plate and a telescopic link, the telescopic link includes a telescopic portion and a fixed portion, the fixed portion is connected to the casting carriage, and the telescopic portion is fixedly connected to the transverse plate;

[0011] The paving plate includes a spreading plate, the lifting assembly includes a fixed frame, an electromagnetic coil disposed in the fixed frame, and a lifting rod, the second identification device includes a second metal detector and is located on the front side of the spreading plate, the bottom end of the spreading plate is used to spread the cement-based mortar, and the top end is connected to the bottom of the fixed frame through a connector;

[0012] The upper portion of the fixed frame is fixedly connected to the lower end of the lifting rod, the top end of the lifting rod passes through the lifting hole provided on the horizontal plate and is slidably connected to the horizontal plate, and a first return spring is further connected between the horizontal plate and the fixed frame, and the first return spring is sleeved on the lifting rod;

[0013] The horizontal plate is provided with a magnet corresponding to the position of the electromagnetic coil.

[0014] In a further embodiment, the connecting element is elastic.

[0015] In a further embodiment, the pouring carriage is further provided with an adjustment mechanism, which is used to simultaneously adjust the vertical distance between the pouring mechanism and the paving mechanism and the road surface;

[0016] The adjustment mechanism includes a long plate and an adjustment component, one end of the long plate is connected to the connection between the telescopic pipe and the fixed pipe, and the other end is fixedly connected to the telescopic part; it can flexibly adjust the use height of the pouring mechanism and the paving mechanism.

[0017] In a further embodiment, the adjustment assembly includes an adjustment screw and an adjustment motor, the adjustment motor is provided on the casting carriage, and the adjustment screw is installed on the output end of the adjustment motor;

[0018] An adjusting screw hole is opened on the long plate, and the adjusting screw hole cooperates with the adjusting screw rod. The moving range of the long plate on the adjusting screw rod is adapted to the telescopic range of the telescopic pipe and the telescopic part.

[0019] In a further embodiment, the stirring device includes a first stirring mechanism and a second stirring mechanism, wherein the second stirring mechanism is arranged perpendicular to the first stirring mechanism and is located below the first stirring mechanism;

[0020] The first stirring mechanism includes a first stirring shaft and a power motor driving the first stirring shaft to rotate, and the first stirring shaft is provided with a plurality of first stirring rods;

[0021] The second stirring mechanism includes a plurality of stirring assemblies, and the plurality of stirring assemblies are distributed from low to high in the casting carriage along the length direction of the casting carriage;

[0022] The second stirring mechanism includes a second stirring shaft and a plurality of second stirring rods provided on the second stirring shaft;

[0023] The second stirring shaft and the first stirring shaft are both rotatably connected to the inner wall of the casting carriage, and a transmission member is provided between the first stirring shaft and the second stirring shaft; the stirring effect of the cement-based mortar can be improved.

[0024] In a further embodiment, the transmission member includes an eccentric cam fixed to the first agitator shaft, a drive bar and a drive gear, the drive bar includes a long strip and a rack fixed to one side of the long strip, the rack is meshed with the drive gear, and the drive gear is mounted on the second agitator shaft;

[0025] The strip is slidably connected to a support plate, the support plate is fixed in the casting carriage, a sphere is fixed on the top of the strip, and a second return spring for driving the strip to slide and return is provided in the support plate; it is more energy-efficient.

[0026] In a further embodiment, the bottom end of one of the several long strips is inserted into the discharge port and is rotatably connected to the stirring piece, and a connecting spring is provided between the bottom end of the other long strip and the bottom of the casting carriage; it can play a role in clearing the discharge port.

[0027] A method for pouring a pavement using the semi-flexible pavement cement-based mortar pouring device comprises the following steps:

[0028] Step 1: Pour cement-based mortar into the pouring carriage and start the mixing device;

[0029] Step 2: The pouring vehicle body moves forward, the switch is turned on, the cement-based mortar is first poured on the road surface through the pipe, and the paving mechanism then levels the cement-based mortar laid on the road surface;

[0030] Step 3: During the pouring process, when the first recognition device recognizes the manhole cover, the pipeline at the corresponding position is closed by the switch member; when the first recognition device does not recognize the manhole cover, the switch member opens the pipeline;

[0031] Step 4: When the second recognition device recognizes the manhole cover, the paving plate is lifted away from the road surface by the lifting assembly; when the second recognition device does not recognize the manhole cover, the paving plate is reset.

[0032] The beneficial effects of the present invention are as follows: by arranging a pouring mechanism first and a paving mechanism afterwards, the device has two functions of pouring and leveling, and both functionality and practicability can better meet the construction needs of semi-flexible pavements, and identification devices are provided on the pouring mechanism and the paving mechanism. The pouring mechanism includes a plurality of pouring pipes, and the paving mechanism includes a plurality of leveling components arranged corresponding to the pouring pipes. Each pouring pipe and each leveling component is provided with an identification device for identifying the manhole cover. When the pouring pipe and the leveling component corresponding to the position of the manhole cover identify the manhole cover through the corresponding identification device, the pouring pipe will not perform a pouring operation on the manhole cover, and the leveling component will not perform a leveling operation either. There is no need to manually and frequently remove the cement-based mortar on the manhole cover, thereby improving the construction efficiency of the semi-flexible pavement. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention.

[0034] Figure 2 The present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0035] Figure 3 The present invention Figure 1 Enlarged structural diagram at point B in the middle.

[0036] Figure 4 It is a partial structural diagram of the side of the pouring mechanism of the present invention.

[0037] Figure 5 It is a schematic diagram of the partial structure of the paving mechanism of the present invention from the side.

[0038] Figure 6 It is a schematic diagram of the partial structure of the second stirring mechanism of the present invention from a top view.

[0039] The figures are marked as follows: casting vehicle body 1, vehicle head 11, vehicle frame 12, casting vehicle compartment 13, stirring device 131, material inlet 132, material outlet 133, support plate 134, casting mechanism 2, paving mechanism 3, paving assembly 4, second identification device 41, spreading plate 42, connecting piece 43, telescopic pipe 5, long plate 51, adjusting screw hole 511, adjusting screw rod 512, adjusting motor 513, fixed pipe 6, solenoid valve 61, first identification device 62, bracket 7, cross plate 71, lifting hole 711, magnet 712, telescopic connecting rod 72, lifting assembly 8, electromagnetic coil 81, fixed frame 82, first return spring 83, lifting rod 84, second stirring mechanism 9, second stirring shaft 91, second stirring rod 911, long strip 92, stirring piece 921, rack 93, transmission part 10, eccentric cam 101, ball 102, driving gear 103. DETAILED DESCRIPTION

[0040] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without one or more of these details. In other instances, certain technical features well known in the art are not described to avoid confusion with the present invention.

[0041] The present invention will be further described in detail below with reference to the accompanying drawings.

[0042] Reference Figure 1-6, is a semi-flexible pavement cement-based mortar pouring device disclosed in the present invention, comprising a pouring vehicle body 1 and a master control unit arranged in the pouring vehicle body 1, the pouring vehicle body 1 comprising a vehicle head 11, a vehicle frame 12 connected to the vehicle head 11, a pouring vehicle compartment 13 for loading cement-based mortar is provided on the vehicle frame 12, a stirring device 131 is provided in the pouring vehicle compartment 13, the pouring vehicle compartment 13 has a heating and heat preservation function, a material inlet 132 is provided on the top of the pouring vehicle compartment 13, and further comprising a pouring mechanism 2 and a paving mechanism arranged on the pouring vehicle compartment 13 The pouring mechanism 2 is connected to the discharge port 133 provided at the bottom of the pouring carriage 13 and is located in front of the paving mechanism 3. When the pouring vehicle body 1 moves forward, the pouring mechanism 2 pours cement-based mortar on the road surface, and then the paving mechanism 3 paves the cement-based mortar. The distribution range of the pouring mechanism 2 is greater than or equal to the distribution range of the paving mechanism 3. The main control unit is provided in the vehicle head 11, and the main control unit includes a signal receiving module, a signal processing module and a signal sending module. The pouring mechanism 2 includes a plurality of channels along the pouring carriage 13. A pouring pipe is provided in the width direction of the pouring carriage 13. The cement-based mortar in the pouring carriage 13 is poured on the road surface through the pouring pipe. The pouring pipe includes a pipe and a switch for opening and closing the pipe. A first identification device 62 is provided in front of each pouring pipe under the pouring carriage 13. The first identification device 62 is used to identify the position of the manhole cover on the pouring road surface. When any of the first identification devices 62 identifies the manhole cover, the switch of the pouring pipe corresponding to the first identification device 62 is opened. The first identification device 62 is located at the front side of the casting pipe and can identify the casting pipe before it reaches the manhole cover. When the casting pipe approaches the manhole cover, the first identification device 62 corresponding to the manhole cover position first identifies the manhole cover, and the main control unit receives the signal through the signal receiving module, and then processes the signal and inputs the signal to the casting mechanism 2 through the signal sending module, so that the switch at the corresponding position closes the pipe, and the casting pipe does not cast cement-based mortar on the manhole cover, while other pipes not corresponding to the manhole cover remain in the casting state;The paving mechanism 3 includes several paving components 4 along the width direction of the casting carriage 13. The paving components 4 include paving plates and lifting components 8 for controlling the lifting of the paving plates. A second identification device 41 is provided in front of each paving component 4 under the casting carriage 13. The second identification device 41 is used to identify the position of the manhole cover on the casting road surface. When any of the second identification devices 41 identifies the manhole cover, the lifting component 8 of the paving component 4 behind the second identification device 41 raises the corresponding paving plate. The second recognition device 41 is located at the front side of the paving assembly 4 and can be used to identify the paving assembly 4 before it reaches the manhole cover. When the paving assembly 4 approaches the manhole cover, the second recognition device 41 corresponding to the manhole cover position first identifies the manhole cover. The main control unit receives the signal through the signal receiving module, processes the signal, and then inputs the signal into the paving mechanism 3 through the signal sending module, so that the lifting assembly 8 at the corresponding position rises, thereby lifting the paving plate, so that the paving plate does not contact the road surface and the manhole cover, avoiding friction between the paving plate and the manhole cover and smearing the cement-based mortar around the manhole cover onto the manhole cover. The main control unit also includes an infrared camera module, which is used to control the operation of the infrared camera mechanism provided on the front of the vehicle 11. The infrared camera mechanism includes a camera. The main control unit receives the signal transmitted by the first recognition device 62 and the second recognition device 41 and sends a control signal to the control object after processing. The control object includes the pouring mechanism 2 and the paving mechanism 3. There are two preset usage modes in the main control unit, one is the normal mode and the other is the manhole cover mode. The two modes are switched according to the signal transmitted by the infrared camera module. The normal mode is that the pouring mechanism 2 and the paving mechanism 3 are in the absence of a manhole cover. Concreting and paving operations are always performed on the road surface, that is, the pouring pipes remain open and the paving assembly 4 does not rise or fall. Manhole cover mode is when a manhole cover is present on the road surface, that is, the pouring pipes and paving assembly 4 need to be adjusted accordingly. As the pouring vehicle 1 moves on the road surface, the infrared camera mechanism on the vehicle head 11 captures the manhole cover before the pouring mechanism 2 and transmits a signal to the main control unit, switching from normal mode to manhole cover mode. Subsequently, the pouring assembly and paving assembly 4 can cooperate according to the recognition results of the first recognition device 62 and the second recognition device 41, respectively.

[0043] The pipeline includes a telescopic pipeline 5 and a fixed pipeline 6, one end of the telescopic pipeline 5 is fixed on the casting carriage 13 and connected to the discharge port 133, and the other end is connected to the fixed pipeline 6; the switch component includes a solenoid valve 61, the first identification device 62 includes a first metal detector and is located on the front side of the pipeline, the solenoid valve 61 is electrically connected to the first metal detector, the solenoid valve 61 is arranged on the fixed pipeline 6, the metal detector includes a detector and a sensor, the detector is a circuit system consisting of a transmitter and a receiver, both of which are placed on an annular bracket 7, when the detector is close to a piece of metal, the metal will induce an induced current through the electric field of the transmitter, so that when the current is generated, the magnetic field related to the metal can be detected, and the function of the sensor is to detect the signal of the detector and convert the signal into an output. After the first metal detector detects the metal manhole cover, the signal is sent to the solenoid valve 61, and the solenoid valve 61 closes the pipeline, so that the cement-based mortar is not poured at the location with the manhole cover.

[0044] The paving plate is connected to the bracket 7, and the bracket 7 includes a transverse plate 71 and a telescopic link 72. The telescopic link 72 includes a telescopic part and a fixed part. The fixed part is connected to the casting carriage 13, and the telescopic part is fixedly connected to the transverse plate 71. The length of the telescopic part is always greater than the length of the lifting rod 84, so as to avoid the lifting rod 84 from being unable to rise after the telescopic part is arbitrarily contracted. The telescopic part is located between the casting mechanism 2 and the lifting assembly 8; the paving plate includes a spreading plate 42, and the lifting assembly 8 includes a fixed frame 82, an electromagnetic coil 81 arranged in the fixed frame 82 and a lifting rod 84, the second identification device 41 includes a second metal detector and is located on the front side of the spreading plate 42, the bottom end of the spreading plate 42 paves the cement-based mortar, and the top end is connected to the bottom of the fixed frame 82 through a connector 43; the top of the fixed frame 82 is connected to the lifting rod 84 The bottom end is fixedly connected, and the top end of the lifting rod 84 passes through the lifting hole 711 opened on the horizontal plate 71 and is slidably connected to the horizontal plate 71. A first return spring 83 is also connected between the horizontal plate 71 and the fixed frame 82, and the first return spring 83 is sleeved on the lifting rod 84; a magnet 712 corresponding to the position of the electromagnetic coil 81 is provided on the horizontal plate 71. When the second metal detector detects the manhole cover, a signal is sent to the main control unit, so that the electromagnetic coil 81 is energized to generate magnetic force and adsorb it with the magnet 712. At this time, the lifting rod 84 is driven upward by the upward fixed frame 82, compressing the first return spring 83, and the spreading plate 42 also rises away from the road surface. When the second metal detector does not detect metal, the electromagnetic coil 81 is de-energized and the magnet 712 is no longer adsorbed, the first return spring 83 is reset and extended, the lifting rod 84 falls, and the spreading plate 42 continues to perform the paving operation.

[0045] The connecting piece 43 is elastic and the material may be rubber with a certain hardness. This setting can prevent the spreading plate 42 from having excessive friction with the road surface during movement, which may affect the movement of the spreading plate 42 and damage the spreading plate 42. A small gap is left between the two adjacent spreading plates 42 on the left and right to avoid friction between the two spreading plates 42, which is not conducive to the lifting and lowering of the spreading plate 42.

[0046] The pouring carriage 13 is also provided with an adjustment mechanism, which is used to simultaneously adjust the vertical distances between the pouring mechanism 2 and the paving mechanism 3 and the road surface; the adjustment mechanism includes a long plate 51 and an adjustment component, one end of the long plate 51 is connected to the connection between the telescopic pipe 5 and the fixed pipe 6, and the other end is fixedly connected to the telescopic part; the setting of the adjustment mechanism can adjust the height distance between the fixed pipe 6 and the road surface and between the spreading plate 42 and the road surface according to the height of the road surface or the pouring thickness, etc. Before the device enters the construction road surface for pouring operation, the height data that needs to be adjusted is set in the main control unit in advance according to the construction conditions of the road surface. When reaching the construction road surface, the adjustment mechanism is controlled to adjust the pouring mechanism 2 and the paving mechanism 3 according to the pre-set data. When the device moves on an ordinary road surface, the pouring mechanism 2 and the paving mechanism 3 can also be retracted to the highest position through the adjustment mechanism to avoid large friction between the spreading plate 42 and the ground. The first recognition device 62 and the second recognition device 41 can also be set on the long plate 51 to ensure that the recognition device can perform recognition first.

[0047] The adjusting assembly includes an adjusting screw rod 512 and an adjusting motor 513. The adjusting motor 513 is provided on the casting carriage 13, and the adjusting screw rod 512 is installed on the output end of the adjusting motor 513. An adjusting screw hole 511 is provided on the long plate 51, and the adjusting screw hole 511 cooperates with the adjusting screw rod 512. The moving range of the long plate 51 on the adjusting screw rod 512 is adapted to the telescopic range of the telescopic pipe 5 and the telescopic part. When the casting height of the fixed pipe 6 needs to be adjusted, the adjusting motor 513 runs to drive the adjusting screw rod 512 to rotate. The telescopic pipe 5 is always connected to the fixed pipe 6 and will not affect the discharge of materials, and the height position of the fixed pipe 6 can also be adjusted. At the same time, the telescopic part also slides and retracts with the fixed part, thereby driving the position of the cross plate 71 to change, thereby adjusting the height position of the spreading plate 42. The end of the cross plate 71 that is not connected to the telescopic part is slidably connected to the casting carriage 13 to ensure the stability of the cross plate 71 and the components arranged on the cross plate 71.

[0048] The stirring device 131 includes a first stirring mechanism and a second stirring mechanism 9, the second stirring mechanism 9 is arranged perpendicular to the first stirring mechanism and is located below the first stirring mechanism; the first stirring mechanism includes a first stirring shaft and a power motor that drives the first stirring shaft to rotate, and a plurality of first stirring rods are provided on the first stirring shaft; the second stirring mechanism 9 includes a plurality of stirring assemblies, and the plurality of stirring assemblies are distributed from low to high in the casting carriage 13 along the length direction of the casting carriage 13, and the position of the second stirring mechanism 9 at the lowest point corresponds to the discharge port 133; the second stirring mechanism 9 includes a second stirring shaft 91 and a plurality of second stirring rods 911 provided on the second stirring shaft 91; the second stirring shaft 91 and the first stirring shaft are both rotatably connected to the inner wall of the casting carriage 13, and a transmission member 10 is provided between the first stirring shaft and the second stirring shaft 91. When the first stirring shaft rotates under the action of the power motor, the first stirring shaft drives the second stirring shaft 91 to rotate through the transmission member 10. The two vertically distributed stirring mechanisms can further improve the stirring effect.

[0049] The transmission member 10 includes an eccentric cam 101 fixed on the first stirring shaft, a driving bar and a driving gear 103, the driving bar includes a long strip 92 and a rack 93 fixed on one side of the long strip 92, the rack 93 is meshed with the driving gear 103, and the driving gear 103 is installed on the second stirring shaft 91; the long strip 92 is slidably connected to the support plate 134, the support plate 134 is fixed in the casting carriage 13, the top of the long strip 92 is fixed with a sphere 102, and the support plate 134 is provided with a means for driving the long strip 92 to slide The second return spring is dynamically reset. When the first stirring shaft rotates, the eccentric cam 101 rotates accordingly to press down the ball 102, thereby driving the long strip 92 to slide downward. As the long strip 92 slides downward, the rack 93 drives the driving gear 103 to rotate forward, thereby driving the second stirring shaft 91 to rotate forward, so that the second stirring mechanism 9 can further stir. When the eccentric cam 101 is away from the ball 102, no pressure is generated on the long strip 92. At this time, the second return spring resets and drives the long strip 92 to move upward, and the rack 93 can drive the driving gear 103 to rotate in the opposite direction.

[0050] The bottom end of one of the several strips 92 is inserted into the discharge port 133 and is rotatably connected to the stirring piece 921. A connecting spring is provided between the bottom end of the other strip 92 and the bottom of the casting carriage 13. When the strip 92 moves up and down, the connecting spring cooperates to expand and contract, further ensuring the stability of the strip 92 and smooth reset. The strip 92 inserted into the discharge port 133 cooperates with the self-rotating stirring piece 921 to effectively clear the discharge port 133. The stirring piece 921 includes a bearing rotatably connected to the bottom end of the strip 92, and a number of stirring rods are provided on the wall of the bearing. The device can also be used to pour asphalt mixed slurry before being used to pour cement-based mortar. The pouring of asphalt slurry also needs to avoid the manhole cover.

[0051] A method for pouring a pavement using the semi-flexible pavement cement-based mortar pouring device comprises the following steps:

[0052] Step 1: Pour cement-based mortar into the pouring carriage 13 and start the stirring device 131;

[0053] Step 2: The pouring vehicle body 1 moves forward. When the infrared camera does not capture the manhole cover, the normal mode is maintained, all switches are turned on, and cement-based mortar is first poured on the road surface through the pipe. The paving mechanism 3 then levels the cement-based mortar laid on the road surface.

[0054] Step 3: During the pouring process, the infrared camera on the front of the vehicle 11 first recognizes the presence of a manhole cover on the road ahead, and then switches from the normal mode to the manhole cover mode. When the first recognition device 62 recognizes the manhole cover, the pipe at the corresponding position is closed by the switch. If the first recognition device 62 does not recognize the manhole cover, the switch opens the pipe.

[0055] Step 4: When the second recognition device 41 recognizes the manhole cover, the paving plate is lifted away from the road surface by the lifting assembly 8. When the second recognition device 41 does not recognize the manhole cover, the paving plate is reset.

[0056] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

[0057] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. A semi-flexible pavement cement-based mortar pouring device, comprising a pouring vehicle body, the pouring vehicle body comprising a head, a frame connected to the head, a pouring carriage for loading cement-based mortar provided on the frame, a stirring device provided in the pouring carriage, and characterized in that: The vehicle also includes a pouring mechanism and a paving mechanism provided on the pouring carriage, wherein the pouring mechanism is connected to a discharge port provided at the bottom of the pouring carriage and is located in front of the paving mechanism. When the pouring carriage moves forward, the pouring mechanism pours cement-based mortar on the road surface, and then the paving mechanism paves the cement-based mortar. The pouring mechanism includes a plurality of pouring pipes arranged along the width direction of the pouring carriage, and the cement-based mortar in the pouring carriage is poured on the road surface through the pouring pipes. The pouring pipes include pipes and switch pieces for opening and closing the pipes. A first identification device is provided in front of each pouring pipe under the pouring carriage, and the first identification device is used to identify the position of a manhole cover on the pouring road surface. When any of the first identification devices identifies a manhole cover, the switch piece of the pouring pipe behind the first identification device closes the corresponding pipe, and the pouring pipe does not pour cement-based mortar on the manhole cover, while other pouring pipes that do not correspond to the manhole cover remain in the pouring state; The paving mechanism includes several paving components along the width direction of the casting carriage, and the paving components include paving plates and lifting components for controlling the lifting of the paving plates. A second identification device is provided in front of each paving component under the casting carriage. The second identification device is used to identify the position of the manhole cover on the casting road surface. When the second identification device identifies the manhole cover, the lifting component of the paving assembly behind the second identification device raises the corresponding paving plate, so that the paving plate does not contact the road surface and the manhole cover, thereby avoiding friction between the paving plate and the manhole cover and smearing the cement-based mortar around the manhole cover onto the manhole cover.

2. A semi-flexible pavement cement-based mortar pouring device according to claim 1, characterized in that: The pipeline includes a telescopic pipeline and a fixed pipeline, one end of the telescopic pipeline is fixed on the casting carriage and connected to the discharge port, and the other end is connected to the fixed pipeline; The switch element includes a solenoid valve, the first identification device includes a first metal detector and is located on the front side of the pipeline, the solenoid valve is electrically connected to the first metal detector, and the solenoid valve is arranged on the fixed pipeline.

3. A semi-flexible pavement cement-based mortar pouring device according to claim 2, characterized in that: The paving plate is connected to a bracket, the bracket includes a transverse plate and a telescopic connecting rod, the telescopic connecting rod includes a telescopic portion and a fixed portion, the fixed portion is connected to the casting carriage, and the telescopic portion is fixedly connected to the transverse plate; The paving plate includes a spreading plate, the lifting assembly includes a fixed frame, an electromagnetic coil disposed in the fixed frame, and a lifting rod, the second identification device includes a second metal detector and is located on the front side of the spreading plate, the bottom end of the spreading plate is used to spread the cement-based mortar, and the top end is connected to the bottom of the fixed frame through a connector; The upper portion of the fixed frame is fixedly connected to the lower end of the lifting rod, the top end of the lifting rod passes through the lifting hole provided on the horizontal plate and is slidably connected to the horizontal plate, and a first return spring is further connected between the horizontal plate and the fixed frame, and the first return spring is sleeved on the lifting rod; The horizontal plate is provided with a magnet corresponding to the position of the electromagnetic coil.

4. A semi-flexible pavement cement-based mortar pouring device according to claim 3, characterized in that: The connecting piece is elastic.

5. The semi-flexible pavement cement-based mortar pouring device according to claim 3, characterized in that: The pouring carriage is also provided with an adjustment mechanism, which is used to simultaneously adjust the vertical distance between the pouring mechanism and the paving mechanism and the road surface; The adjustment mechanism includes a long plate and an adjustment assembly. One end of the long plate is connected to the connection between the telescopic pipe and the fixed pipe, and the other end is fixedly connected to the telescopic part.

6. A semi-flexible pavement cement-based mortar pouring device according to claim 5, characterized in that: The adjusting assembly includes an adjusting screw and an adjusting motor, wherein the adjusting motor is provided on the casting carriage, and the adjusting screw is installed on the output end of the adjusting motor; An adjusting screw hole is opened on the long plate, and the adjusting screw hole cooperates with the adjusting screw rod. The moving range of the long plate on the adjusting screw rod is adapted to the telescopic range of the telescopic pipe and the telescopic part.

7. A semi-flexible pavement cement-based mortar pouring device according to claim 1, characterized in that: The stirring device includes a first stirring mechanism and a second stirring mechanism, wherein the second stirring mechanism is arranged vertically to the first stirring mechanism and is located below the first stirring mechanism; The first stirring mechanism includes a first stirring shaft and a power motor driving the first stirring shaft to rotate, and the first stirring shaft is provided with a plurality of first stirring rods; The second stirring mechanism includes a plurality of stirring assemblies, and the plurality of stirring assemblies are distributed from low to high in the casting carriage along the length direction of the casting carriage; The second stirring mechanism includes a second stirring shaft and a plurality of second stirring rods provided on the second stirring shaft; The second stirring shaft and the first stirring shaft are both rotatably connected to the inner wall of the casting carriage, and a transmission member is provided between the first stirring shaft and the second stirring shaft.

8. A semi-flexible pavement cement-based mortar pouring device according to claim 7, characterized in that: The transmission member includes an eccentric cam, a driving bar and a driving gear fixed to the first stirring shaft, the driving bar includes a long strip and a rack fixed to one side of the long strip, the rack is meshed with the driving gear, and the driving gear is installed on the second stirring shaft; The strip is slidably connected to a support plate, the support plate is fixed in the casting carriage, a sphere is fixed on the top of the strip, and a second return spring for driving the strip to slide and return is provided in the support plate.

9. A semi-flexible pavement cement-based mortar pouring device according to claim 8, characterized in that: The bottom end of one of the plurality of long strips is inserted into the discharge port and is rotatably connected to the stirring piece, and a connecting spring is provided between the bottom end of the other long strip and the bottom of the casting carriage.

10. A method for pouring a pavement using the semi-flexible pavement cement-based mortar pouring device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step 1: Pour cement-based mortar into the pouring carriage and start the mixing device; Step 2: The pouring vehicle body moves forward, the switch is turned on, the cement-based mortar is first poured on the road surface through the pipe, and the paving mechanism then levels the cement-based mortar laid on the road surface; Step 3: During the pouring process, when the first recognition device recognizes the manhole cover, the pipeline at the corresponding position is closed by the switch member; when the first recognition device does not recognize the manhole cover, the switch member opens the pipeline; Step 4: When the second recognition device recognizes the manhole cover, the paving plate is lifted away from the road surface by the lifting assembly; when the second recognition device does not recognize the manhole cover, the paving plate is reset.

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