Method and device for quickly demolishing cement concrete pavement slab

Abstract

The present invention belongs to the technical field of pavement demolishing devices, and particularly relates to a method and device for quickly demolishing a cement concrete pavement slab. The demolishing device comprises a mobile demolishing vehicle, wherein the mobile demolishing vehicle comprises a base, which is mounted at the bottom of the mobile demolishing vehicle. During pavement sawing, in the case of the first instance of sawing which is shallow sawing, the sawing amount of a first saw blade regarding a pavement cement layer is small, and the sawing speed thereof is increased; the second instance of sawing, which is deep sawing, involves performing secondary sawing on the basis of an original sawing groove of the first saw blade, although the amount of feed of a second saw blade is large, the sawing thickness of the second saw blade regarding the cement layer is reduced by the first saw blade, such that the sawing amount of the second saw blade is small, and the sawing speed is also increased; and the third instance of sawing is still the same as the above case, such that the sawing speed can also be increased when multiple instances of sawing are performed, thereby improving the pavement demolishing efficiency, and accelerating the replacement of pavement slabs, thus improving the pavement repair efficiency and achieving the effect of rapid navigation and traffic opening.

Description

A method and device for quickly dismantling cement concrete paving panels Technical Field

[0001] The invention belongs to the technical field of pavement demolition equipment, in particular to a method and equipment for quickly demolishing cement concrete pavement panels. Background Art

[0002] Today's airports and port terminals are all paved with cement concrete because they can withstand heavy loads, such as airplanes and container trucks. The bearing capacity of this type of pavement is far superior to that of asphalt pavement. If the cement concrete pavement is damaged and needs to be repaired, the general solution is to use a sledgehammer to break the pavement, remove the broken pieces, and then pour new cement. It takes more than 20 days to reach the required strength to meet the requirements for navigation and traffic. Maintenance is difficult and the cycle is long. Therefore, how to quickly replace the damaged cement concrete pavement panels to achieve rapid navigation and traffic is a fundamental technical problem that needs to be solved.

[0003] In the existing technology, the conventional technical solution is to demolish the pavement by hammering it into pieces. This is inefficient and requires more manpower and material resources to collect the broken pieces, which further prolongs the repair time of the damaged road surface and increases the subsequent road surface repair time, resulting in a decrease in the efficiency of road surface repair.

[0004] Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes a method and equipment for quickly dismantling cement concrete paving panels.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention proposes a method and equipment for rapid dismantling of cement concrete pavement panels, wherein the dismantling equipment includes a dismantling mobile vehicle; the dismantling mobile vehicle includes:

[0007] A base, the base is mounted on the bottom of the demolition mobile vehicle, and a road distance measuring device is installed on the bottom of the base; the base is square, and a positioning transceiver is slidably installed at the four corners of the bottom of the base;

[0008] Box No. 1, the bottom of the base is evenly slidably mounted with the box No. 1 having an opening at the bottom, and a lifting rod No. 1 is mounted inside the box No. 1; a saw No. 1 is mounted at the working end of the lifting rod No. 1; and a moving device No. 1 is mounted on the top of the box No. 1;

[0009] Box No. 2, the bottom of the base is evenly slidably mounted with the box No. 2 having an opening at the bottom, and a No. 2 lifting rod is mounted inside the box No. 2; a No. 2 saw is mounted at the working end of the No. 2 lifting rod; and a No. 2 moving device is mounted on the top of the box No. 2;

[0010] Box No. 3, the bottom of the base is evenly and slidably mounted with the box No. 3 having an opening at the bottom, and a lifting rod No. 3 is mounted inside the box No. 3; a saw No. 3 is mounted on the working end of the lifting rod No. 3; a moving device No. 3 is mounted on the top of the box No. 3; the box No. 1, box No. 2 and box No. 3 are arranged in sequence along a straight line, and the box No. 1, box No. 2 and box No. 3 form a group; a total of four groups are mounted on the bottom of the base, and the moving paths of the four groups of boxes No. 1, box No. 2 and box No. 3 form a rectangular road demolition area;

[0011] The driving beam is installed at the bottom of the base, and a driving longitudinal beam is installed at the bottom of the base between the driving beams; the No. 1 box, the No. 2 box and the No. 3 box are all installed at the bottom of the driving beam and the driving longitudinal beam, and the number of the driving beams and the driving longitudinal beams is two; a cooling device is installed at the bottom of the base, and the cooling device cools the No. 1 saw, the No. 2 saw and the No. 3 saw.

[0012] Preferably, the No. 1 saw and the No. 2 saw are circular saw-shaped, and the No. 1 saw is smaller than the No. 2 saw; and the No. 3 saw is a chain saw.

[0013] Preferably, the No. 1 saw and the No. 2 saw are composed of multiple saw blades, and the saw blades in the No. 1 saw and the No. 2 saw are evenly arranged side by side; the cutting widths of the No. 1 saw, the No. 2 saw and the No. 3 saw are the same.

[0014] Preferably, the width between the sides of the adjacent No. 1 saw, No. 2 saw and No. 3 saw that are away from each other is the same as the width of the road demolition area.

[0015] Preferably, a telescopic rod is installed on the side of the No. 2 box away from the No. 1 box, and a No. 1 plate is installed on the working end of the telescopic rod; the bottom of the No. 1 plate is symmetrically and slidably connected to the No. 1 block, and a limit plate is provided on the top of the No. 1 block, and the limit plate passes through the No. 1 plate and is located at its top; the top of the No. 1 plate is slidably connected to the limit rod, and a spring is provided between the limit rod and the No. 1 plate; the side of the No. 1 plate facing the limit rod is serrated, and the middle part of the limit rod is engaged with the serrated part of the No. 1 plate; a reset plate is provided on one side of the No. 2 box, and the reset plate is located above the limit plate, and the reset plate is inclined.

[0016] Preferably, the cross-section of block No. 1 is triangular, and the side of the blocks No. 1 that are close to each other is a vertical surface; the side of the No. 2 box close to the telescopic rod is slidably connected to a guide plate, and the guide plate is inclined, and a spring is provided between the No. 1 plate and the guide plate; a collection box is installed on one side of the No. 2 box, and the top opening of the collection box is close to one end of the guide plate.

[0017] Preferably, the side of the No. 1 blocks that are close to each other is serrated, and the serrated portion of the No. 1 blocks is inclined toward the No. 1 plate.

[0018] Preferably, each of the No. 1 saw, the No. 2 saw and the No. 3 saw is equipped with a dust cover.

[0019] Preferably, cleaning brushes are installed in sliding connection on all four sides of the demolition mobile vehicle, and a limiting pin is installed below the cleaning brush on the demolition mobile vehicle.

[0020] A method for quickly dismantling cement concrete paving panels, the method using the above-mentioned dismantling equipment, and the steps of the method are as follows:

[0021] S1: Before construction, the control module in the demolition mobile vehicle controls the driving module to complete the movement until the demolition mobile vehicle moves to the set rectangular road demolition area; then the control module controls the driving beam and driving beam to drive the No. 1 box, No. 2 box and No. 3 box to move to the rectangular edge line planned for the road demolition area;

[0022] S2: When cutting again, the No. 1 lifting rod first drives the No. 1 saw to contact the road surface, and the No. 1 moving device drives the No. 1 box and the No. 1 saw to cut the road surface in a straight line. After the No. 1 saw cuts the road surface to a specified length, the No. 2 saw cuts the road surface a second time along the cutting path of the No. 1 saw.

[0023] S3: Finally, the No. 3 saw cuts the road surface for the third time along the cutting path of the No. 2 saw, completing the cutting of the cement concrete layer on the road surface. The construction workers lift and replace the cut road surface slabs by replacing the equipment, and finally complete the removal of the cement concrete road surface slabs.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The present invention provides a method and equipment for quickly dismantling cement concrete paving panels. The method uses a No. 1 saw, a No. 2 saw, and a No. 3 saw to repeatedly cut the road surface in sequence. Compared with the prior art method of using a single saw blade to cut the road surface in one go, the present invention uses a multiple-step cutting method from shallow to deep to effectively avoid the safety hazards caused by the operation of a single saw blade, thereby improving construction safety.

[0026] 2. A method and device for quickly dismantling cement concrete paving panels of the present invention, during the pavement cutting process, the first shallow cutting, the No. 1 saw blade cuts a small amount of the pavement cement layer, and its cutting speed is increased. The second deeper cutting is based on the original cutting groove of the No. 1 saw blade. Although the feed amount of the No. 2 saw blade is large, the cutting thickness of the cement layer is reduced by the No. 1 saw blade, so that the cutting amount of the No. 2 saw blade is small while the cutting speed is increased. The third cutting is still the same as the above, so that the cutting speed can be increased while cutting in multiple times, thereby improving the efficiency of pavement demolition construction, speeding up the pavement paving panels, and then improving the efficiency of pavement repair, and achieving the effect of rapid navigation and traffic. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] FIG1 is a perspective view of a dismantling device according to the present invention;

[0029] FIG2 is a perspective view of the base of the present invention;

[0030] FIG3 is a top view of the dismantling device of the present invention;

[0031] FIG4 is a perspective view of the driving beam of the present invention;

[0032] FIG5 is a perspective view of the driving longitudinal beam of the present invention;

[0033] FIG6 is a perspective view of block No. 1 of the present invention;

[0034] FIG7 is a partial enlarged view of point A in FIG3 ;

[0035] FIG8 is a partial enlarged view of point B in FIG6;

[0036] FIG9 is a step diagram of the dismantling method of the present invention.

[0037] In the figure: dismantling mobile vehicle 1, base 11, road distance measuring device 12, positioning transceiver 13, driving beam 14, driving longitudinal beam 15, cooling device 16, dust cover 17, cleaning brush 18, limit pin 19, No. 1 box 2, No. 1 lifting rod 21, No. 1 saw 22, No. 1 moving device 23, No. 2 box 3, No. 2 lifting rod 31, No. 2 saw 32, No. 2 moving device 33, telescopic rod 34, No. 1 plate 35, No. 1 block 36, limit plate 37, limit rod 38, No. 3 box 4, No. 3 lifting rod 41, No. 3 saw 42, No. 3 moving device 43, reset plate 5, guide plate 6, collection box 61. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings shown in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Example 1:

[0040] The pavements of current airports and port terminals are all made of cement concrete because they can withstand heavy loads, such as airplanes and container trucks. The load-bearing capacity of this type of pavement is far superior to that of asphalt pavement. If a cement concrete pavement is damaged and needs to be repaired, the solution generally adopted is to use a blasting hammer to break the pavement, remove the broken pieces, and then pour new cement. It takes more than 20 days to reach the required strength to meet the requirements for navigation and traffic. The maintenance is difficult and the cycle is long. Therefore, how to quickly replace the damaged cement concrete pavement with new pavement panels to achieve rapid navigation and traffic is a fundamental technical problem to be solved.

[0041] In the existing technology, the conventional technical solution is to demolish the pavement by hammering it, which is inefficient and requires more manpower and material resources to collect the broken pieces, which further prolongs the repair time of the damaged road surface and increases the subsequent road surface repair time, resulting in reduced road surface repair efficiency.

[0042] In order to effectively solve the above problems, as shown in Figures 1 to 8 of the accompanying drawings of the specification, a cement concrete pavement panel removal device includes a demolition mobile vehicle 1. The demolition mobile vehicle 1 is equipped with a power supply, a drive module and a control module. The drive module drives the demolition mobile vehicle 1 to move, and the control module controls the moving direction, trajectory and working parameters of the demolition mobile vehicle 1. The demolition mobile vehicle 1 includes:

[0043] The base 11 is installed at the bottom of the demolition mobile vehicle 1, and a road distance measuring device 12 is installed at the bottom of the base 11. The road distance measuring device 12 is a conventional device for measuring the thickness of cement concrete pavement in this field, such as a laser rangefinder; the base 11 is square, and a positioning transceiver 13 is slidably installed at the four corners of the bottom of the base 11; the positioning transceiver 13 in the present invention is a conventional positioning supporting component in the prior art, including a positioning device and a transceiver, such as a wireless positioning transmitter and receiver. Before construction, the positioning devices are respectively installed at four target points in the road demolition area, and the positioning device is directed to the receiver. The transmitting device sends a signal, and after the transceiver receives the signal, the control module in the demolition mobile vehicle 1 controls the driving module to move toward the positioning device until the demolition mobile vehicle 1 moves to the rectangular pavement demolition area formed by the positioning device, thereby completing the automatic positioning of the working area of ​​the demolition mobile vehicle 1 and the pavement demolition area; during construction, the positioning transceiver 13 controls the driving crossbeam 14 and the driving longitudinal beam 15 through the control module according to the area of ​​the pavement demolition area formed by the positioning device, driving the No. 1 box 2, the No. 2 box 3 and the No. 3 box 4 to move to the rectangular edge line planned for the pavement demolition area, thereby completing the calibration and positioning of the pavement cutting position;

[0044] Box 2 No. 1, the bottom of the base 11 is evenly slidably installed with a box 2 No. 1 with an opening at the bottom, and a lifting rod 21 No. 1 is installed in the box 2; a saw 22 No. 1 is installed at the working end of the lifting rod 21; a moving device 23 No. 1 is installed on the top of the box 2;

[0045] The second box 3 is evenly slidably mounted on the bottom of the base 11, and a second box 3 with an opening at the bottom is mounted inside the second box 3; a second lifting rod 31 is mounted on the working end of the second lifting rod 31; and a second moving device 33 is mounted on the top of the second box 3;

[0046] The third box 4 is evenly slidably installed at the bottom of the base 11, and the third box 4 with an opening at the bottom is installed in the third box 4; the working end of the third lifting rod 41 is installed with a No. 3 saw 42; the top of the third box 4 is installed with a No. 3 moving device 43; the No. 1 box 2, the No. 2 box 3 and the No. 3 box 4 are arranged in sequence along a straight line, and the No. 1 box 2, the No. 2 box 3 and the No. 3 box 4 are a group; a total of four groups are installed at the bottom of the base 11, and the moving paths of the four groups of No. 1 box 2, No. 2 box 3 and No. 3 box 4 constitute a rectangular road demolition area; the No. 1 moving device 23, the No. 2 moving device 33 and the No. 3 moving device 43 are conventional components in this field for driving parts to move, such as motor drive wheels, and the No. 1 moving device 23, the No. 2 moving device 33 and the No. 3 moving device 43 respectively drive the No. 1 box 2, the No. 2 box 3 and the No. 3 box 4 to move in sequence along the same straight line to complete the cutting work of the road surface;

[0047] A driving crossbeam 14 is installed at the bottom of the base 11, and a driving longitudinal beam 15 is installed at the bottom of the base 11 between the driving crossbeams 14; box No. 1 2, box No. 2 3 and box No. 3 4 are all installed at the bottom of the driving crossbeam 14 and the driving longitudinal beam 15, and the number of the driving crossbeam 14 and the driving longitudinal beam 15 are two; a cooling device 16 is installed at the bottom of the base 11, and the cooling device 16 cools the No. 1 saw 22, the No. 2 saw 32 and the No. 3 saw 42; the driving crossbeam 14 and the driving longitudinal beam 15 are conventional driving parts, and the driving crossbeam 14 and the driving longitudinal beam 15 drive each group of box No. 1 2, box No. 2 3 and box No. 3 4 to move together, and adjust the cutting range of the four groups of box No. 1 2, box No. 2 3 and box No. 3 4 to achieve the purpose of overlapping with the road demolition area; the cooling device 16 is a conventional cooling component, and is used to cool the No. 1 saw 22, the No. 2 saw 32 and the No. 3 saw 42 during the cutting process;

[0048] Specific work flow: Before construction, the positioning devices are respectively installed at the four target points in the pavement demolition area, and the positioning device sends a signal to the transceiver. After receiving the signal, the transceiver controls the driving module through the control module in the demolition mobile vehicle 1 to move toward the positioning device until the demolition mobile vehicle 1 moves to the rectangular pavement demolition area formed by the positioning device, completing the automatic positioning of the working area of ​​the demolition mobile vehicle 1 and the pavement demolition area; during construction, the positioning transceiver 13 controls the driving crossbeam 14 and the driving longitudinal beam 15 through the control module according to the area of ​​the pavement demolition area formed by the positioning device, driving the No. 1 box 2, the No. 2 box 3 and the No. 3 box 4 to move to the rectangular edge line planned for the pavement demolition area, completing the calibration and positioning of the pavement cutting position;

[0049] During the cutting process, the two driving beams 14 first drive the No. 1 saw 22, the No. 2 saw 32 and the No. 3 saw 42 to the designated position, and then the No. 1 saw 22, the No. 2 saw 32 and the No. 3 saw 42 start cutting; after the No. 1 saw 22, the No. 2 saw 32 and the No. 3 saw 42 on the driving beam 14 have completed cutting, the No. 1 saw 22, the No. 2 saw 32 and the No. 3 saw 42 on the two driving beams 14 are respectively raised by the No. 1 lifting rod 21, the No. 2 lifting rod 31 and the No. 3 lifting rod 41, and the two driving longitudinal beams 15 then drive the No. 1 saw 22, the No. 2 saw 32 and the No. 3 saw 42 to move After passing over the No. 1 saw 22, No. 2 saw 32 and No. 3 saw 42 on the two driving crossbeams 14 and reaching the designated position, the No. 1 saw 22, No. 2 saw 32 and No. 3 saw 42 on the two driving longitudinal beams 15 continue cutting until the cement layer of the road surface is cut. Through the cooperation between the driving crossbeam 14 and the driving longitudinal beam 15, the two side lines of the rectangular road surface demolition area can be cut at the same time, so that the road surface demolition area only needs two sets of cutting steps to complete the cutting of the rectangular road surface demolition area, which speeds up the cutting speed, improves the road surface demolition efficiency, and thus improves the subsequent road surface repair efficiency.

[0050] In the prior art, when the road surface is demolished, a saw blade with a radius greater than the thickness of the cement concrete layer of the road surface is used for cutting. However, when such a large saw blade is used to cut cement under high load, the vibration and shaking amplitude generated are large, which leads to a slow road cutting and demolition speed, reduced demolition efficiency and affected road repair efficiency. In addition, due to the large saw blade radius and the deep position of the saw blade in the cement layer, it is easy to be stuck by operating errors or axial forces, and even the saw blade is damaged and flies out, which again affects the road cutting and demolition efficiency and increases construction safety hazards. Therefore, when cutting the road demolition area, the present invention first drives the No. 1 lifting rod 21 to drive the No. 1 saw 22 to contact the road surface, and the No. 1 moving device 23 drives the No. 1 box 2 The road surface is cut along a straight line with the No. 1 saw 22, so that a shallow cutting groove is formed on the road surface. After the No. 1 saw 22 cuts the road surface to a specified length, the No. 2 lifting rod 31 drives the No. 2 saw 32 to contact the road surface, and the No. 2 moving device 33 drives the No. 2 box 3 and the No. 2 saw 32 to perform a second cutting on the road surface along the cutting path of the No. 1 saw 22, so that a deeper cutting groove is formed on the road surface. Finally, after the No. 2 saw 32 cuts the road surface to a specified length, the No. 3 lifting rod 41 drives the No. 3 saw 42 to contact the road surface, and the No. 3 moving device 43 drives the No. 3 box 4 and the No. 3 saw 42 to perform a third cutting on the road surface along the cutting path of the No. 2 saw 32. The cooling device 16 cools the No. 1 saw 22, the No. 2 saw 32 and the No. 3 saw 42, and finally completes the cutting of the cement concrete layer on the road surface.

[0051] The road surface is repeatedly cut in sequence by the No. 1 saw 22, the No. 2 saw 32 and the No. 3 saw 42. Compared with the prior art method of using a single saw blade to cut the road surface at one time, the present invention uses a multiple-step cutting method from shallow to deep to effectively avoid the safety hazards caused by the operation of a single saw blade, thereby improving the safety of construction. In addition, in the first shallow cutting, the No. 1 saw 22 cuts a small amount of cement layer on the road surface, and its cutting speed is improved. The second deeper cutting is cut again on the basis of the original cutting groove of the No. 1 saw 22. Although the feed amount of the No. 2 saw 32 is large, the thickness of the cement layer cut by the No. 1 saw 22 is reduced by the No. 1 saw, so that the cutting amount of the No. 2 saw 32 is small while the cutting speed is improved. The third cutting is still the same as the above, so that the cutting speed can be improved while cutting in multiple steps, thereby improving the efficiency of road demolition construction, speeding up the removal of road paving panels, and further improving the efficiency of road repair, thereby achieving the effect of rapid navigation and traffic opening.

[0052] The construction workers then replaced and repaired the cut panels by replacing equipment.

[0053] Example 2:

[0054] On the basis of the first embodiment, as shown in FIG. 3 to FIG. 7 of the accompanying drawings of the specification, the first saw 22 and the second saw 32 are circular saws, and the first saw 22 is smaller than the second saw 32; the third saw 42 is a chain saw;

[0055] The No. 1 saw 22 and the No. 2 saw 32 are composed of multiple saw blades, and the saw blades in the No. 1 saw 22 and the No. 2 saw 32 are evenly arranged side by side; the cutting widths of the No. 1 saw 22, the No. 2 saw 32 and the No. 3 saw 42 are the same;

[0056] The width between the sides of the adjacent No. 1 saw 22, No. 2 saw 32 and No. 3 saw 42 that are away from each other is the same as the width of the road demolition area;

[0057] Specific working process: By setting the No. 1 saw 22 and the No. 2 saw 32 to be circular saw-shaped, and the size of the No. 1 saw 22 is smaller than the No. 2 saw 32, the No. 1 saw 22 can be reduced in size when cutting shallowly, thereby reducing the jitter generated by the No. 1 saw 22 during fast cutting, thereby accelerating the cutting speed of the No. 1 saw 22 and improving the cutting speed of road demolition; in addition, during the installation process, a camera can be installed at the bottom of the base 11 to observe and confirm whether the cutting groove formed by the No. 1 saw 22 during the cutting process conforms to the specified cutting route, facilitating timely adjustments, avoiding large cutting errors that affect construction, and improving the practicality of the present invention;

[0058] When an ordinary circular saw cuts a rectangular demolition area on the road surface, if the road cement layer needs to be cut, the circular saw needs to cut through the four corners of the road demolition area. This results in the circular saw having four cutting grooves in a crisscross shape after the cutting is completed. The central rectangular part is the road surface to be demolished, and a large number of additional cutting grooves are formed outside the road surface demolition area, which requires construction workers to select additional materials to repair them. Moreover, these additional cutting grooves are difficult to repair due to their small width and will also leave repair hidden dangers, reducing the service life after the repair is completed. Therefore, the road surface demolition effect will directly affect the quality and efficiency of subsequent road surface repair. Therefore, the present invention uses a chain saw for the No. 3 saw 42, and the chain saw is a special cement concrete cutting tool in this field, so that the cutting surfaces of the No. 3 saw 42 in the front and rear directions are all vertical surfaces. After the No. 3 saw 42 moves to cut to the specified position, the No. 3 saw 42 is raised, and the side walls formed in the road surface cutting groove are vertical planes, which avoids cutting too many cutting grooves on the road surface, improves the cutting effect of the No. 3 saw 42, thereby improving the road surface demolition effect, reducing the subsequent road surface repair construction operations, and facilitating subsequent road surface repair.

[0059] Since the No. 1 saw 22 and the No. 2 saw 32 are composed of multiple saw blades, and the saw blades in the No. 1 saw 22 and the No. 2 saw 32 are evenly arranged side by side, the cutting width of the No. 1 saw 22 and the No. 2 saw 32 is the same as the cutting width of the No. 3 saw 42. Since the thickness of the chain saw is greater than that of the circular saw, the cutting groove width of the No. 3 saw 42 is greater than the cutting groove width of the No. 1 saw 22 and the No. 2 saw 32. The width of the multiple cutting grooves formed by the No. 1 saw 22 and the No. 2 saw 32 composed of multiple sets of saw blades is the same as the cutting groove width of the No. 3 saw 42. After the No. 2 saw 32 cuts the multiple cutting grooves, the cutting amount of the No. 3 saw 42 is reduced during the cutting process, and the cutting speed of the No. 3 saw 42 is increased, thereby improving the road surface cutting efficiency and further improving the road surface demolition efficiency.

[0060] Furthermore, by setting the width between the sides of the adjacent No. 1 saw 22, No. 2 saw 32 and No. 3 saw 42 that are away from each other to be the same as the width of the road demolition area, the cutting groove becomes wider while the spacing between the relative No. 1 saw 22, No. 2 saw 32 and No. 3 saw 42 is reduced. While ensuring that the road demolition size remains unchanged, the spacing between the relative No. 1 saw 22, No. 2 saw 32 and No. 3 saw 42 is shortened, so that the cutting groove is extended toward the road demolition area and becomes wider, avoiding the cutting groove affecting the part outside the road demolition area, causing errors in the size of the demolition area.

[0061] Example 3:

[0062] The cam 35 is provided with a plurality of springs, each of which is provided with a plurality of springs, and the plurality of springs are provided with plurality of springs.

[0063] The cross section of the No. 1 block 36 is triangular, and the side of the No. 1 blocks 36 that are close to each other is a vertical surface; the side of the No. 2 box 3 close to the telescopic rod 34 is slidably connected to the guide plate 6, and the guide plate 6 is set at an angle, and a spring is provided between the No. 1 plate 35 and the guide plate 6; a collection box 61 is installed on one side of the No. 2 box 3, and the top opening of the collection box 61 is close to one end of the guide plate 6;

[0064] The side of the No. 1 block 36 that is close to each other is serrated, and the serrated portion of the No. 1 block 36 is inclined toward the No. 1 plate 35;

[0065] Specific working process: During the cutting process of the No. 2 saw 32, the telescopic rod 34 located between the No. 2 saw 32 and the No. 2 saw 32 is controlled by the control module in the demolition mobile vehicle 1 to work periodically. The telescopic rod 34 drives the No. 1 plate 35 to descend at a specified time interval, and the descent of the No. 1 plate 35 drives the No. 1 block 36 to descend, and the end of the No. 1 block 36 away from the No. 1 plate 35 enters the cutting groove; at this time, the multiple cutting grooves formed by the cutting of the No. 2 saw 32 are gradually squeezed by the No. 1 block 36 and broken into thin sheets, and because the cross-section of the No. 1 block 36 is triangular, the inclined surface of the No. 1 plate 35 contacts the cutting groove and guides the No. 1 block 36, so that the No. 1 blocks 36 approach each other while extending into the cutting groove, clamping the broken fragments in the cutting groove The first block 36 moves closer to each other, driving the limit plate 37 to move. The serrated portion on one side of the limit plate 37 continuously squeezes over the limit rod 38 until the adjacent first block 36 clamps the debris in the cutting groove. At this time, the limit rod 38 is engaged with the serrated portion of the limit plate 37, locking the limit plate 37. The telescopic rod 34 drives the first block 36 to rise through the first plate 35. The first block 36 clamps the debris in the cutting groove and rises to clean the cutting groove, reducing the amount of cement remaining in the cutting groove after the second saw 32 is cut, thereby reducing the amount of cement remaining in the cutting groove during the cutting process of the third saw 42, thereby reducing the amount of cement cut by the third saw 42 in the cutting groove, increasing the cutting speed of the third saw 42, and thus improving the road demolition efficiency.

[0066] During the descent of block 36, block 36 contacts the surface of guide plate 6. After one end of block 36 presses guide plate 6 along the inclined surface of guide plate 6, guide plate 6 moves away from collection box 61, so that block 36 passes between guide plate 6 and collection box 61 to clamp the fragments in the cutting groove; when block 36 rises after clamping the fragments, block 36 carries the fragments to box 3 No. 2, block 36 no longer presses guide plate 6, and guide plate 6 is reset to a state where one end extends into the opening of collection box 61 by a spring; plate 35 drives block 36 and limit plate 37 During the rising process of the limit rod 38, the limit rod 38 contacts the reset plate 5, and the inclined surface of the reset plate 5 guides the limit rod 38, so that the limit rod 38 is away from the serrated portion of the limit plate 37. After the limit rod 38 no longer locks the limit plate 37, the spring between the adjacent No. 1 blocks 36 drives the No. 1 blocks 36 and the limit plate 37 to move away from each other and reset. The fragments clamped by the No. 1 blocks 36 fall onto the surface of the guide plate 6 and slide into the collection box 61, completing the collection of road cement fragments, reducing the labor intensity of construction workers, and improving the practicality of the present invention.

[0067] Furthermore, by setting the side of the No. 1 block 36 that is close to each other to be serrated, and the serrated portion of the No. 1 block 36 being inclined toward the No. 1 plate 35, when the No. 1 block 36 extends into the cutting groove to clamp the fragments, the serrated portion of the No. 1 block 36 is embedded in the fragments, thereby improving the stability of the No. 1 block 36 in clamping the cement fragments in the cutting groove and promoting the collection of road cement fragments.

[0068] Example 4:

[0069] On the basis of the third embodiment, as shown in FIG. 1 to FIG. 7 of the accompanying drawings of the specification, each of the first saw 22, the second saw 32 and the third saw 42 is equipped with a dust cover 17;

[0070] Cleaning brushes 18 are installed and slidably connected on all sides of the demolition mobile vehicle 1, and a limit pin 19 is installed below the cleaning brush 18 on the demolition mobile vehicle 1;

[0071] Specific work flow: by installing a dust cover 17 on each No. 1 saw 22, No. 2 saw 32 and No. 3 saw 42, the dust and cooling water of No. 1 saw 22, No. 2 saw 32 and No. 3 saw 42 are reduced from splashing and scattering during the cutting process, thereby improving the construction environment of the construction workers; in addition, before the demolition mobile vehicle 1 moves to the road demolition area, the construction workers remove the limit pin 19, and the cleaning brush 18 slides down along the side of the demolition mobile vehicle 1 under the influence of gravity to contact the road surface, so that the demolition mobile vehicle 1 can sweep away the debris in the road demolition area while moving, thereby avoiding the situation where the debris on the road surface affects the operation of the road surface distance measuring device 12, thereby improving the practicality of this application; after the demolition is completed, the cleaning brush 18 is moved up for reset, and the limit pin 19 is reinserted to support and limit the cleaning brush 18; in addition, when installing the cleaning brush 18, a lifting device can be added and connected to the cleaning brush 18 to realize the function of automatically lifting the cleaning brush 18.

[0072] Embodiment 5:

[0073] A method for quickly dismantling cement concrete paving panels, as shown in FIG9 of the accompanying drawings of the specification, uses the above-mentioned dismantling equipment, and the steps of the dismantling method are as follows:

[0074] S1: Before construction, the control module in the demolition mobile vehicle 1 controls the driving module to complete the movement until the demolition mobile vehicle 1 moves to the set rectangular road demolition area; then the control module controls the driving beam 14 and the driving longitudinal beam 15 to drive the No. 1 box 2, No. 2 box 3 and No. 3 box 4 to move to the rectangular edge line planned for the road demolition area;

[0075] S2: When cutting again, first the No. 1 lifting rod 21 drives the No. 1 saw 22 to contact the road surface, and the No. 1 moving device 23 drives the No. 1 box 2 and the No. 1 saw 22 to cut the road surface in a straight line. After the No. 1 saw 22 cuts the road surface to a specified length, the No. 2 saw 32 cuts the road surface a second time along the cutting path of the No. 1 saw 22.

[0076] S3: Finally, the third saw 42 cuts the road surface for the third time along the cutting track of the second saw 32, completing the cutting of the cement concrete layer on the road surface; the construction workers lift and replace the cut road surface slabs by replacing the equipment, and finally complete the removal of the cement concrete road surface slabs.

[0077] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A cement concrete paving slab demolition device, comprising a demolition mobile vehicle (1); characterized in that, The demolition mobile vehicle (1) includes: A base (11), the base (11) is installed at the bottom of the demolition mobile vehicle (1), and a road surface ranging device (12) is installed at the bottom of the base (11); the base (11) is square, and positioning transceiver devices (13) are slidably installed at the four corners of the bottom of the base (11); A first box (2), the first box (2) with an opening at the bottom is slidably installed uniformly at the bottom of the base (11), and a first lifting rod (21) is installed in the first box (2); a first saw (22) is installed at the working end of the first lifting rod (21); a first moving device (23) is installed at the top of the first box (2); A second box (3), the second box (3) with an opening at the bottom is slidably installed uniformly at the bottom of the base (11), and a second lifting rod (31) is installed in the second box (3); a second saw (32) is installed at the working end of the second lifting rod (31); a second moving device (33) is installed at the top of the second box (3); A third box (4), the third box (4) with an opening at the bottom is slidably installed uniformly at the bottom of the base (11), and a third lifting rod (41) is installed in the third box (4); a third saw (42) is installed at the working end of the third lifting rod (41); a third moving device (43) is installed at the top of the third box (4); the first box (2), the second box (3) and the third box (4) are arranged in a straight line sequence, and the first box (2), the second box (3) and the third box (4) are a group; a total of four groups are installed at the bottom of the base (11), and the moving paths of the four groups of the first box (2), the second box (3) and the third box (4) form a rectangular road surface demolition area; A driving cross beam (14), the driving cross beam (14) is installed at the bottom of the base (11), and driving longitudinal beams (15) are installed between the driving cross beams (14) at the bottom of the base (11); the first box (2), the second box (3) and the third box (4) are all installed at the bottom of the driving cross beam (14) and the driving longitudinal beam (15), and the number of both the driving cross beam (14) and the driving longitudinal beam (15) is two; a cooling device (16) is installed at the bottom of the base (11), and the cooling device (16) cools the first saw (22), the second saw (32) and the third saw (42); On one side of the second box (3) away from the first box (2), a telescopic rod (34) is installed, and a first plate (35) is installed at the working end of the telescopic rod (34); two first blocks (36) are symmetrically and slidably connected to the bottom of the first plate (35), and a limiting plate (37) is arranged at the top of the first block (36). The limiting plate (37) penetrates through the first plate (35) and is located at its top; a limiting rod (38) is slidably connected to the top of the first plate (35), and a spring is arranged between the limiting rod (38) and the first plate (35); one side of the first plate (35) facing the limiting rod (38) is serrated, and the middle part of the limiting rod (38) is engaged with the serrated part of the first plate (35); a reset plate (5) is arranged on one side of the second box (3), and the reset plate (5) is located above the limiting plate (37). The reset plate (5) is inclined. The cross-section of the first block (36) is triangular, and the mutually approaching sides of the first block (36) are vertical planes; a guide plate (6) is slidably connected to one side of the second box (3) close to the telescopic rod (34), and the guide plate (6) is inclined. A spring is arranged between the first plate (35) and the guide plate (6); a collection box (61) is installed on one side of the second box (3), and the top opening of the collection box (61) is close to one end of the guide plate (6). The mutually approaching sides of the first block (36) are serrated, and the serrated part in the first block (36) is inclined towards the first plate (35).

2. The demolition equipment for cement concrete paving slabs according to claim 1, characterized in that: The first saw (22) and the second saw (32) are circular saws, and the size of the first saw (22) is smaller than that of the second saw (32); the third saw (42) is a chain saw.

3. The demolition equipment for a cement concrete paving slab according to claim 2, characterized in that: The first saw (22) and the second saw (32) are composed of multiple saw blades, and the saw blades in the first saw (22) and the second saw (32) are arranged side by side evenly; the cutting widths of the first saw (22), the second saw (32) and the third saw (42) are the same.

4. The demolition equipment for cement concrete paving slabs according to claim 3, characterized in that: The width between the mutually remote sides of adjacent first saws (22), second saws (32) and third saws (42) is the same as the width of the road surface demolition area.

5. The demolition equipment for a cement concrete paving slab according to claim 1, characterized in that: A dust-proof cover (17) is installed on each of the first saw (22), the second saw (32) and the third saw (42).

6. The demolition equipment for a cement concrete paving slab according to claim 1, characterized in that: Sweeping brushes (18) are slidably connected to the four sides of the demolition mobile vehicle (1), and a limiting pin (19) is installed below the demolition mobile vehicle (1) and at the position of the sweeping brushes (18).

7. A method for rapid removal of cement concrete paving slabs, characterized in that, The demolition method uses the demolition equipment described in any one of the above claims 1-6, and the steps of the demolition method are as follows: S1: Before construction, the control module in the demolition mobile vehicle (1) controls the driving module to complete the movement until the demolition mobile vehicle (1) moves to the set rectangular road surface demolition area; then, the control module controls the driving cross beam (14) and the driving longitudinal beam (15) to drive the first box (2), the second box (3) and the third box (4) to move to the rectangular side lines planned in the road surface demolition area. S2: Then, when cutting again, first the first lifting rod (21) drives the first saw (22) to contact the road surface, and the first moving device (23) drives the first box (2) and the first saw (22) to cut the road surface in a straight line direction; after the first saw (22) cuts the specified length of the road surface, the second saw (32) performs a secondary cut on the road surface along the cutting track of the first saw (22); S3: Finally, the third saw (42) performs a third cut on the road surface along the cutting track of the second saw (32) to complete the cutting work of the cement concrete layer on the road surface; the construction workers lift and replace the cut road surface plates by replacing the equipment, and finally complete the removal work of the paving plates of the cement concrete road surface.

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