CN220927466U

CN220927466U - Crack filling device

Info

Publication number: CN220927466U
Application number: CN202323031098.0U
Authority: CN
Inventors: 莫陈; 刘萌
Original assignee: Heilongjiang Province Tonghe Road Maintenance General Section
Current assignee: Heilongjiang Province Tonghe Road Maintenance General Section
Priority date: 2023-11-09
Filing date: 2023-11-09
Publication date: 2024-05-10
Anticipated expiration: 2033-11-09

Abstract

The utility model relates to the field of crack filling devices, in particular to a crack filling device. Technical problems: after the crack is filled, the hot-melting material often forms bulges higher than the pavement at the crack of the road, and the effective removal of the bulges is difficult, so that the running of the passing vehicle is influenced. The technical scheme is as follows: a crack filling device comprises a supporting component. After the crack is filled, the leveling component is started to level redundant materials, so that the surface of the pavement can be leveled, and when the pavement is used, pressurized water can be connected onto the dust falling component, so that atomization, water spraying and dust falling are realized near the supporting component, the leveling component is convenient to assemble, disassemble and maintain, and the problem that after the crack is filled, hot-melting materials often form bulges higher than the pavement at the crack of the pavement, and effective removal of the bulges is difficult to influence the running of a passing vehicle is solved.

Description

Crack filling device

Technical Field

The utility model belongs to the field of crack filling devices, and particularly relates to a crack filling device.

Background

In practical application of road crack filling, hot-melt materials are a common and effective filling method, and hot-melt adhesives or hot-melt adhesive tapes are generally used in the method, and are melted by heating, and then the melted materials are directly injected into road cracks to realize sealing and filling effects, but after the cracks are filled, the hot-melt materials often form protrusions higher than road surfaces at the road cracks, so that effective removal of the protrusions is difficult to influence the running of passing vehicles.

Disclosure of utility model

In order to overcome the problem that after the cracks are filled, the hot-melting material often forms bulges higher than the pavement at the cracks of the road, and the effective removal of the bulges can influence the running of the passing vehicle.

The technical scheme of the utility model is as follows: a crack filling device comprises a supporting component; the device also comprises a bearing assembly, a hot melting assembly, a crack pouring assembly, a shoveling assembly and a dust falling assembly; the lower end of the supporting component is provided with a bearing component; the bearing component is provided with a hot melting component for hot melting the joint filling material; the lower end of the bearing component is provided with a crack pouring component for pouring cracks; the lower end of the bearing component is provided with a shoveling component for shoveling off the part of the material protruding out of the ground after the crack pouring is completed; the support component is also provided with a dust falling component for falling dust nearby the support component.

Preferably, when using, promote the device to the region of waiting to crack, throw into the hot melt subassembly with the crack material, flow the material of hot melt after the material hot melt from the below of hot melt subassembly, open the crack subassembly and adjust ejection of compact position, conveniently pour into the crack on ground with the material of hot melt, after filling to the crack, open the shovel flat subassembly and level unnecessary material, can guarantee the level and smooth of road surface, during the use, can also insert the pressurized water on the dust fall subassembly, realize atomizing water spray dust fall near the supporting component, solve after the crack is filled, the hot melt material can often form the arch that is higher than the road surface in road crack department, be difficult to carry out effectual department of going to these archs and can influence the problem of going on the vehicle.

Preferably, the supporting component comprises a U-shaped block, a first groove body, a roller, a connecting rod, a push rod and a limiting groove; the lower end of the U-shaped block is provided with a symmetrical first groove body in a penetrating way; symmetrical idler wheels are rotatably arranged on the inner walls of the left end and the right end of the first groove body; the rear end of the U-shaped block is fixedly connected with a symmetrical connecting rod; the other end of the connecting rod is fixedly connected with a push rod; limiting grooves are fixedly formed in the inner walls of the left end and the right end of the U-shaped block; the front end and the rear end of the limiting groove are in the same plane with the front end and the rear end of the U-shaped block, when the device needs to be moved, the U-shaped block is pushed by the handheld push rod, and the four rollers roll on the road surface, so that the movement of the device is facilitated.

Preferably, the bearing assembly comprises a fixed block, a bearing block and a mounting groove; the lower end of the U-shaped block is fixedly connected with a fixed block; the front end of the fixed block is fixedly connected with a bearing block; the lower end of the fixed block is fixedly provided with a mounting groove; the rear end of mounting groove and the rear end of fixed block are in the coplanar, and the fixed block can bear the weight of the feed cylinder down, and the installation of the convenient flat subassembly of shovel of setting up of mounting groove.

Preferably, the hot melting assembly comprises a blanking cylinder, a heat preservation cylinder, a supporting block, a fixed body, a first electric cylinder, a pressing block, a filling cylinder, an intermediate frequency induction coil and a discharging nozzle; the upper end and the lower end of the bearing block are fixedly connected with a blanking cylinder in a penetrating way; the upper end of the blanking cylinder is fixedly connected with a heat preservation cylinder; symmetrical supporting blocks are fixedly connected to the upper end of the heat preservation cylinder; the upper end of the supporting block is fixedly connected with a fixing body; the upper end of the fixed body is fixedly connected with a first electric cylinder; the lower end of the telescopic rod of the first electric cylinder penetrates through the fixed body and is fixedly connected with a pressing block; a packing cylinder and an intermediate frequency induction coil are fixedly connected to the inner wall of the lower end of the heat preservation cylinder; the packing cylinder is positioned in the middle frequency induction coil; the outer wall of the pressing block and the inner wall of the filling cylinder are positioned on the same plane; the lower extreme fixedly connected with discharge gate of feed cylinder, put into the feed cylinder with filling material in, open intermediate frequency induction coil and heat the feed cylinder, heat transfer makes the material melt on the material, the crack of filling into the road surface that can be better, opens first electronic jar and makes the briquetting down move, and the briquetting down moves along the inner wall of feed cylinder, can squeeze into the feed cylinder with the material of hot melt in the feed cylinder in, finally follow discharge gate and flow.

Preferably, the joint filling assembly comprises a second electric cylinder, a connecting block and a joint filling barrel; the lower end of the bearing block is fixedly connected with a second electric cylinder; the outer wall of the lower end of the telescopic rod of the second electric cylinder is fixedly connected with a connecting block; the upper end and the lower end of the connecting block are fixedly connected with a crack pouring barrel in a penetrating way; the upper end outer wall of the crack pouring barrel is attached to the lower end inner wall of the discharge nozzle, hot-melt crack pouring liquid is injected into the crack pouring barrel through the discharge nozzle and flows downwards along the inside of the crack pouring barrel, when the crack pouring barrel is used, a second electric cylinder is started to enable a connecting block to move downwards according to the condition of an actual road surface to enable the connecting block to move downwards, the crack pouring barrel is driven to move downwards, and the crack pouring barrel can be injected into the crack deep, so that the crack pouring effect is improved.

Preferably, the shoveling assembly comprises a mounting body, a bolt, a limiting plate, a third electric cylinder, a cutting shovel and a limiting block; the inner wall of the mounting groove is movably provided with a mounting body; bolts which are uniformly distributed are arranged at the left end threads of the mounting groove; the bolts penetrate through the mounting grooves and are arranged in the wall layers of the mounting body in a threaded manner; limiting plates are fixedly connected at the left end and the right end of the mounting body; the left end and the right end of the limiting plate are attached to the inner walls of the left end and the right end of the limiting groove; the lower end of the mounting body is fixedly connected with a third electric cylinder; the front end of the telescopic rod of the third electric cylinder is fixedly connected with a cutting shovel; the lower end of the cutting shovel and the lower end of the roller are positioned on the same plane; a limiting block is fixedly connected to the upper end of the cutting shovel; when the inner walls of the left end and the right end of the limiting block are attached to the inner walls of the left end and the right end of the mounting body, and the part higher than the road surface after the joint filling is required to be shoveled, the third electric cylinder is started to enable the cutting shovel to move forwards, and the sharp shovel head on the cutting shovel can be utilized to shoveling the redundant part after the joint filling, so that the flatness of the road surface can be improved.

Preferably, the dust falling component comprises a second groove body, a fixed pipe, a water injection pipe, a valve body, an elbow pipe and an atomization nozzle; the upper end of the U-shaped block is fixedly provided with symmetrical second groove bodies; the front end and the rear end of the U-shaped block are fixedly connected with a fixed pipe in a penetrating way; the front end of the fixed pipe is communicated with a water injection pipe; a valve body is fixedly arranged on the water injection pipe; an elbow is fixedly connected to the inner wall of one second groove body; one end of the bent pipe penetrates through the wall layer of the U-shaped block and is communicated with the fixed pipe; the pipe bending is fixedly connected with a plurality of atomizing nozzles, when dust fall needs to be carried out on the vicinity of the U-shaped block, the pressure water is connected into the water injection pipe, the valve body is opened, the pressure water enters the pipe bending through the water injection pipe and the water injection pipe, and finally is sprayed out from the plurality of atomizing nozzles, so that the vicinity of the U-shaped block can be atomized and dust reduced, the dust reducing effect of the device can be improved, and the protection of the surrounding environment is improved when the device is used.

The utility model has the beneficial effects that:

1. When the device is used, the device is pushed to an area to be subjected to crack pouring, the crack pouring material is thrown into the hot melting assembly, the hot melting material after the material is hot melted flows out from the lower part of the hot melting assembly, the crack pouring assembly is started to adjust the discharging position, the hot melting material is conveniently poured into cracks on the ground, after the cracks are filled, the third electric cylinder is started to enable the cutting shovel to move forwards, the sharp shovel head on the cutting shovel can be utilized to shovel out redundant parts after the crack pouring, so that the flatness of a road surface can be improved, the shoveling assembly is convenient to assemble and disassemble and maintain, and the problem that after the cracks are filled, the hot melting material often forms bulges higher than the road surface at the crack positions of the road, and the effective removal of the bulges is difficult to influence the running of a passing vehicle is solved;

2. The filling material is placed in the filling cylinder, the medium-frequency induction coil is started to heat the filling cylinder, heat is transferred to the material to enable the material to be melted, the filling cylinder can be better filled in cracks of a road surface, the first electric cylinder is started to enable the pressing block to move downwards, the pressing block moves downwards along the inner wall of the filling cylinder, the hot-melted material in the filling cylinder can be extruded into the discharging cylinder, finally, the hot-melted material flows out from the discharging nozzle, and the hot-melted material in the filling cylinder can be better discharged when the pressure is utilized;

3. The hot-melt crack pouring liquid is injected into the crack pouring barrel through the discharging nozzle and flows downwards along the inside of the crack pouring barrel, when the crack pouring barrel is used, according to the condition of an actual pavement, the second electric cylinder is started to enable the connecting block to move downwards for the pavement with deeper cracks, the crack pouring barrel is driven to move downwards, the crack pouring barrel can be injected into the depth of the cracks, and the crack pouring effect is improved;

4. When the dust fall needs to be atomized near the U-shaped block, the pressure water is connected into the water injection pipe, the valve body is opened, the pressure water enters the bent pipe through the water injection pipe and the water injection pipe, and finally is sprayed out from a plurality of atomizing spray heads, so that the dust fall can be atomized near the U-shaped block, the dust fall effect of the device can be improved, and the protection of the surrounding environment is improved when the device is used.

Drawings

FIG. 1 is a schematic perspective view showing a crack filling device according to the present utility model;

FIG. 2 shows a schematic perspective view of a support assembly of a crack filling device according to the present utility model;

FIG. 3 is a schematic perspective view of a carrier assembly, a hot melt assembly and a crack pouring assembly of a crack filling device according to the present utility model;

FIG. 4 shows a schematic perspective view of a shoveling assembly of a crack filling device in accordance with the present utility model;

FIG. 5 shows a partially enlarged perspective view of a crack filling device according to the present utility model;

Fig. 6 shows a schematic perspective view of a dust settling assembly of a crack filling device according to the present utility model.

The marks in the drawings are: 1-supporting component, 101-U-shaped block, 102-first cell body, 103-gyro wheel, 104-connecting rod, 105-push rod, 106-spacing groove, 2-bearing component, 201-fixed block, 202-bearing block, 203-mounting groove, 3-hot melt component, 301-blanking cylinder, 302-thermal insulation cylinder, 303-supporting block, 304-fixed body, 305-first electric cylinder, 306-briquetting, 307-packing cylinder, 308-intermediate frequency induction coil, 309-discharge nozzle, 4-pouring assembly, 401-second electric cylinder, 402-connecting block, 403-pouring cylinder, 5-leveling component, 501-mounting body, 502-bolt, 503-limiting plate, 504-third electric cylinder, 505-cutting shovel, 506-limiting block, 6-dust fall component, 601-second cell body, 602-fixed pipe, 603-water injection pipe, 604-valve body, 605-elbow pipe, 606-atomizer.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

Referring to fig. 1, the present utility model provides an embodiment: a crack filling device comprises a supporting component 1; the device also comprises a bearing component 2, a hot melting component 3, a crack pouring component 4, a shoveling component 5 and a dust falling component 6; the lower end of the supporting component 1 is provided with a bearing component 2; the bearing component 2 is provided with a hot melting component 3 for hot melting the joint filling material; the lower end of the bearing component 2 is provided with a crack pouring component 4 for pouring cracks; the lower end of the bearing component 2 is provided with a shoveling component 5 for shoveling off the part of the material protruding out of the ground after the crack filling is completed; the support assembly 1 is further provided with a dust settling assembly 6 for settling dust in the vicinity of the support assembly 1.

Referring to fig. 2, in the present embodiment, the support assembly 1 includes a U-shaped block 101, a first groove 102, a roller 103, a connecting rod 104, a push rod 105 and a limiting groove 106; the lower end of the U-shaped block 101 is provided with a symmetrical first groove body 102 in a penetrating way; symmetrical rollers 103 are rotatably arranged on the inner walls of the left end and the right end of the first groove body 102; the rear end of the U-shaped block 101 is fixedly connected with a symmetrical connecting rod 104; the other end of the connecting rod 104 is fixedly connected with a push rod 105; limiting grooves 106 are fixedly formed in the inner walls of the left end and the right end of the U-shaped block 101; the front and rear ends of the limit groove 106 and the front and rear ends of the U-shaped block 101 are in the same plane.

Referring to fig. 3, in the present embodiment, the bearing assembly 2 includes a fixed block 201, a bearing block 202 and a mounting groove 203; a fixed block 201 is fixedly connected to the lower end of the U-shaped block 101; the front end of the fixed block 201 is fixedly connected with a bearing block 202; the lower end of the fixed block 201 is fixedly provided with an installation groove 203; the rear end of the mounting groove 203 and the rear end of the fixing block 201 are in the same plane; the hot melting assembly 3 comprises a blanking cylinder 301, a heat preservation cylinder 302, a supporting block 303, a fixed body 304, a first electric cylinder 305, a pressing block 306, a filling cylinder 307, an intermediate frequency induction coil 308 and a discharging nozzle 309; the upper end and the lower end of the bearing block 202 are fixedly connected with a blanking cylinder 301 in a penetrating manner; the upper end of the blanking cylinder 301 is fixedly connected with a heat preservation cylinder 302; the upper end of the heat preservation cylinder 302 is fixedly connected with a symmetrical supporting block 303; a fixing body 304 is fixedly connected to the upper end of the supporting block 303; the upper end of the fixed body 304 is fixedly connected with a first electric cylinder 305; the lower end of the telescopic rod of the first electric cylinder 305 penetrates through the fixed body 304 and is fixedly connected with a pressing block 306; a packing cylinder 307 and an intermediate frequency induction coil 308 are fixedly connected to the inner wall of the lower end of the heat preservation cylinder 302; the packing cylinder 307 is positioned inside the intermediate frequency induction coil 308; the outer wall of the pressing block 306 is in the same plane with the inner wall of the packing cylinder 307; a discharge nozzle 309 is fixedly connected to the lower end of the lower charging barrel 301; the joint filling assembly 4 comprises a second electric cylinder 401, a connecting block 402 and a joint filling cylinder 403; the lower end of the bearing block 202 is fixedly connected with a second electric cylinder 401; a connecting block 402 is fixedly connected to the outer wall of the lower end of the telescopic rod of the second electric cylinder 401; the upper end and the lower end of the connecting block 402 are fixedly connected with a crack pouring barrel 403 in a penetrating manner; the upper outer wall of the pouring spout 403 is attached to the lower inner wall of the spout 309.

Referring to fig. 4 and 5, in the present embodiment, the leveling assembly 5 includes a mounting body 501, a bolt 502, a limiting plate 503, a third electric cylinder 504, a cutting blade 505 and a limiting block 506; the inner wall of the mounting groove 203 is movably provided with a mounting body 501; the left end of the mounting groove 203 is provided with uniformly distributed bolts 502 in a threaded manner; the bolts 502 are threadedly mounted in the wall layer of the mounting body 501 through the mounting grooves 203; limiting plates 503 are fixedly connected at the left end and the right end of the mounting body 501; the left and right ends of the limiting plate 503 are attached to the inner walls of the left and right ends of the limiting groove 106; a third electric cylinder 504 is fixedly connected to the lower end of the mounting body 501; a cutting shovel 505 is fixedly connected to the front end of the telescopic rod of the third electric cylinder 504; the lower end of the cutting shovel 505 and the lower end of the roller 103 are in the same plane; a limiting block 506 is fixedly connected to the upper end of the cutting shovel 505; the left and right ends of the stopper 506 are attached to the inner walls of the left and right ends of the mounting body 501.

Referring to fig. 6, in the present embodiment, the dust settling assembly 6 includes a second tank 601, a fixed pipe 602, a water injection pipe 603, a valve body 604, a bent pipe 605 and an atomization nozzle 606; the upper end of the U-shaped block 101 is fixedly provided with a symmetrical second groove body 601; the front end and the rear end of the U-shaped block 101 are fixedly connected with a fixed pipe 602 in a penetrating manner; the front end of the fixed pipe 602 is communicated with a water injection pipe 603; a valve body 604 is fixedly arranged on the water injection pipe 603; an elbow 605 is fixedly connected to the inner wall of one second tank body 601; one end of the bent pipe 605 penetrates through the wall layer of the U-shaped block 101 and is communicated with the fixed pipe 602; a plurality of atomizing nozzles 606 are fixedly connected on the bent pipe 605.

In operation, the hand-held push rod 105 pushes the U-shaped block 101, and the four rollers 103 roll on the road surface to move the device to a required area;

Then, filling material is put into the filling cylinder 307, the medium frequency induction coil 308 is started to heat the filling cylinder 307, heat is transferred to the material to melt the material, the filling material can be better filled into cracks of a pavement, the first electric cylinder 305 is started to enable the pressing block 306 to move downwards, the pressing block 306 moves downwards along the inner wall of the filling cylinder 307, the hot-melted material in the filling cylinder 307 can be extruded into the blanking cylinder 301, the hot-melt crack pouring liquid is injected into the crack pouring barrel 403 through the discharging nozzle 309 and then flows downwards along the inside of the crack pouring barrel 403, when the crack pouring barrel 403 is used, according to the condition of an actual road surface, the second electric cylinder 401 is started to enable the connecting block 402 to move downwards for the road surface with deeper cracks, the crack pouring barrel 403 is driven to move downwards, and the crack pouring barrel 403 can be injected into the depths of the cracks;

When the part higher than the pavement after the crack is irrigated is required to be shoveled, the third electric cylinder 504 is started to enable the cutting shovel 505 to move forwards, and the sharp shovel head on the cutting shovel 505 can be utilized to shovel the redundant part after the crack is irrigated;

When the dust is atomized near the U-shaped block 101, the pressure water is connected into the water injection pipe 603, the valve body 604 is opened, the pressure water enters the elbow 605 through the water injection pipe 603 and the water injection pipe 603, and finally is sprayed out from the plurality of atomizing nozzles 606, so that the dust is atomized near the U-shaped block 101.

Through the above-mentioned step, during the use, promote the device to the region of waiting to crack, throw into the crack material into hot melt subassembly 3, flow the material of hot melt after the material hot melt from the below of hot melt subassembly 3, open crack subassembly 4 and adjust the ejection of compact position, conveniently pour into the crack on ground with the material of hot melt, after filling the crack, open the shovel flat subassembly 5 and level unnecessary material, can guarantee the level and smooth of road surface, during the use, still can insert on the dust fall subassembly 6 with the pressurized water, realize carrying out atomizing water spray dust fall to support assembly 1 nearby, solve after the crack is filled, the hot melt material can often form the arch that is higher than the road surface in road crack department, be difficult to carry out effectual department of removing can influence the problem of going on the vehicle.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. A crack filling device comprises a supporting component (1); the method is characterized in that: the device also comprises a bearing component (2), a hot melting component (3), a crack pouring component (4), a shoveling component (5) and a dust settling component (6); the lower end of the supporting component (1) is provided with a bearing component (2); the bearing component (2) is provided with a hot melting component (3) for hot melting the joint filling material; the lower end of the bearing component (2) is provided with a crack pouring component (4) for pouring cracks; the lower end of the bearing component (2) is provided with a shoveling component (5) for shoveling off the part of the material protruding out of the ground after the crack pouring is completed; the support component (1) is also provided with a dust settling component (6) for settling dust nearby the support component (1).

2. A crack filling device as claimed in claim 1, characterized in that: the supporting component (1) comprises a U-shaped block (101), a first groove body (102), a roller (103), a connecting rod (104), a push rod (105) and a limiting groove (106); the lower end of the U-shaped block (101) is provided with a symmetrical first groove body (102) in a penetrating way; symmetrical rollers (103) are rotatably arranged on the inner walls of the left end and the right end of the first groove body (102); the rear end of the U-shaped block (101) is fixedly connected with a symmetrical connecting rod (104); the other end of the connecting rod (104) is fixedly connected with a push rod (105); limiting grooves (106) are fixedly formed in the inner walls of the left end and the right end of the U-shaped block (101);

the front end and the rear end of the limiting groove (106) are in the same plane with the front end and the rear end of the U-shaped block (101).

3. A crack filling device as claimed in claim 2, characterized in that: the bearing assembly (2) comprises a fixed block (201), a bearing block (202) and an installation groove (203); the lower end of the U-shaped block (101) is fixedly connected with a fixed block (201); the front end of the fixed block (201) is fixedly connected with a bearing block (202); the lower end of the fixed block (201) is fixedly provided with an installation groove (203); the rear end of the mounting groove (203) and the rear end of the fixed block (201) are in the same plane.

4. A crack filling device as claimed in claim 3, characterized in that: the hot melting assembly (3) comprises a blanking barrel (301), a heat preservation barrel (302), a supporting block (303), a fixing body (304), a first electric cylinder (305), a pressing block (306), a filling barrel (307), an intermediate frequency induction coil (308) and a discharging nozzle (309); the upper end and the lower end of the bearing block (202) are fixedly connected with a blanking cylinder (301) in a penetrating way; the upper end of the blanking cylinder (301) is fixedly connected with a heat preservation cylinder (302); the upper end of the heat preservation cylinder (302) is fixedly connected with symmetrical supporting blocks (303); the upper end of the supporting block (303) is fixedly connected with a fixing body (304); the upper end of the fixed body (304) is fixedly connected with a first electric cylinder (305); the lower end of the telescopic rod of the first electric cylinder (305) penetrates through the fixed body (304) and is fixedly connected with a pressing block (306); a packing cylinder (307) and an intermediate frequency induction coil (308) are fixedly connected to the inner wall of the lower end of the heat preservation cylinder (302); the packing cylinder (307) is positioned inside the medium-frequency induction coil (308); the outer wall of the pressing block (306) and the inner wall of the filling cylinder (307) are positioned on the same plane; the lower end of the blanking cylinder (301) is fixedly connected with a discharging nozzle (309).

5. A crack filling device as claimed in claim 3, characterized in that: the joint filling assembly (4) comprises a second electric cylinder (401), a connecting block (402) and a joint filling barrel (403); the lower end of the bearing block (202) is fixedly connected with a second electric cylinder (401); a connecting block (402) is fixedly connected to the outer wall of the lower end of the telescopic rod of the second electric cylinder (401); the upper end and the lower end of the connecting block (402) are fixedly connected with a joint filling cylinder (403) in a penetrating way;

The outer wall of the upper end of the crack pouring cylinder (403) is attached to the inner wall of the lower end of the discharging nozzle (309).

6. A crack filling device as claimed in claim 3, characterized in that: the shoveling assembly (5) comprises an installation body (501), a bolt (502), a limiting plate (503), a third electric cylinder (504), a cutting shovel (505) and a limiting block (506); the inner wall of the mounting groove (203) is movably provided with a mounting body (501); the left end of the mounting groove (203) is provided with uniformly distributed bolts (502) in a threaded manner; the bolts (502) penetrate through the mounting grooves (203) and are arranged in the wall layer of the mounting body (501) in a threaded mode; limiting plates (503) are fixedly connected at the left end and the right end of the mounting body (501); the left end and the right end of the limiting plate (503) are attached to the inner walls of the left end and the right end of the limiting groove (106); the lower end of the mounting body (501) is fixedly connected with a third electric cylinder (504); the front end of the telescopic rod of the third electric cylinder (504) is fixedly connected with a cutting shovel (505); the lower end of the cutting shovel (505) and the lower end of the roller (103) are positioned on the same plane; a limiting block (506) is fixedly connected to the upper end of the cutting shovel (505); the left and right ends of the limiting block (506) are attached to the inner walls of the left and right ends of the mounting body (501).

7. A crack filling device as claimed in claim 2, characterized in that: the dust falling component (6) comprises a second groove body (601), a fixed pipe (602), a water injection pipe (603), a valve body (604), an elbow pipe (605) and an atomization nozzle (606); the upper end of the U-shaped block (101) is fixedly provided with a symmetrical second groove body (601); the front end and the rear end of the U-shaped block (101) are fixedly connected with a fixed pipe (602) in a penetrating way; the front end of the fixed pipe (602) is communicated with a water injection pipe (603); a valve body (604) is fixedly arranged on the water injection pipe (603); an elbow (605) is fixedly connected to the inner wall of the second groove body (601); one end of the bent pipe (605) penetrates through the wall layer of the U-shaped block (101) and is communicated with the fixed pipe (602); a plurality of atomizing nozzles (606) are fixedly connected on the bent pipe (605).