Obstacle removing robot for expressway and working method of obstacle removing robot

Abstract

The invention discloses an obstacle clearing robot for an expressway and a working method of the obstacle clearing robot, and relates to the field of road clearing. The obstacle removing robot for the expressway comprises two supporting frames which are symmetrically arranged and further comprises a roller shaft which is rotationally connected between the two supporting frames, a plurality of sliding cavities are formed in the circumference of the roller shaft at equal intervals, an electromagnetic block is slidably connected into each sliding cavity, and the two supporting frames are arranged on the roller shaft; the end, located outside the sliding cavity, of the electromagnetic block is a magnetic suction face. The two elastic air bags are symmetrically arranged in the sliding cavity; by combining two modes of stirring and spraying air into a gap, a metal object and a non-metal object can be better changed into a loose state from a tightly clamped state, the metal object can be conveniently adsorbed through a magnetic force subsequently, the non-metal object is cleaned through cooperation of a brush and a push shovel, and the cleaning efficiency is improved. The obstacle removing robot can better clean metal objects and non-metal objects clamped in gaps.

Description

Technical Field

[0001] The invention belongs to the technical field of highway clearing, and in particular relates to an obstacle-clearing robot for highways and a working method thereof. Background Art

[0002] When a vehicle collides on the highway, parts of the vehicle may fall off due to the force of the impact. For example, the bumper, body shell and other parts of the car are fixed with fasteners such as screws. Severe collisions may cause these screws to loosen or even fall off. In the process of the vehicle rolling, the chassis, suspension system and other components may also be damaged. The screws, bolts and other metal parts will be scattered on the road surface. Therefore, after an accident, the road surface needs to be cleaned in time to prevent the screws, bolts and other metal parts scattered on the road surface from puncturing the tires of passing vehicles and creating serious safety hazards.

[0003] However, currently, after a collision accident, cleaning equipment is often used to clean up the metal parts scattered on the road surface. However, for some metal parts stuck in the gaps of the road surface, it is not possible to effectively remove them by only cleaning them, so the present invention is proposed in view of this. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide an obstacle-clearing robot for highways and a working method thereof that can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: A roadblock-clearing robot for highways comprises two symmetrically arranged support frames, and further comprises: a roller shaft rotatably connected between the two support frames, wherein the roller shaft is provided with a plurality of sliding cavities equidistantly arranged on the circumference, each of the sliding cavities is slidably connected with an electromagnetic block, and one end of the electromagnetic block located outside the sliding cavity is a magnetic attraction surface; two elastic airbags are symmetrically arranged in the sliding cavity, wherein one end of the elastic airbag is fixedly connected to the electromagnetic block, and the other end is fixedly connected to the inner wall of the sliding cavity, a hollow cavity 1 is provided in the roller shaft between two adjacent electromagnetic blocks, an air jet hole connected to the hollow cavity 1 is provided on the roller shaft, a conduit 1 connected to the elastic airbag is provided on the roller shaft, and a conduit 2 is provided in the roller shaft, one end of the conduit 2 is connected to the elastic airbag, and the other end is connected to the hollow cavity 1.

[0006] Preferably, two springs 1 are further included, and the two springs 1 are symmetrically arranged in the sliding cavity, one end of the spring 1 is fixedly connected to the inner wall of the sliding cavity, and the other end is fixedly connected to the electromagnetic block.

[0007] In order to control the switch of the electromagnetic block and to facilitate the cleaning of the screws adsorbed on the electromagnetic block, preferably, it also includes a conductive block 1 and a conductive block 2 arranged in the sliding cavity to control the switch of the electromagnetic block, wherein the conductive block 1 is slidably connected in the sliding cavity, and the conductive block 2 is embedded in the electromagnetic block.

[0008] In order to enable the conductive block 1 to slide smoothly in the sliding cavity, it further includes two multi-stage telescopic rods, which are symmetrically fixedly connected to the inner wall of the sliding cavity, and the telescopic ends of the multi-stage telescopic rods are fixedly connected to the conductive block 1. A spring 2 is sleeved on the multi-stage telescopic rod, and one end of the spring 2 is fixedly connected to the conductive block 1, and the other end is fixedly connected to the inner wall of the sliding cavity.

[0009] In order to drive the roller shaft to drive the electromagnetic blocks to rotate so that the multiple electromagnetic blocks can better clean the screws on the road surface, preferably, a motor is fixedly mounted on the support frame, and the roller shaft is fixedly connected to the output end of the motor.

[0010] In order to facilitate the cleaning of large debris on the road surface, it further includes a bulldozer, and the two support frames are rotatably connected to the two ends of the bulldozer respectively. Both ends of the bulldozer are rotatably connected to hydraulic telescopic rods, and the support frame is rotatably connected to the telescopic end of the hydraulic telescopic rod.

[0011] In order to facilitate the cleaning of garbage and non-metallic parts on the road surface and improve the cleaning effect, further, the outer wall of the roller shaft is located between two adjacent electromagnetic blocks and a plurality of groups of brushes are fixedly installed, each group of brushes is provided with a plurality of brushes, and the brushes are used in conjunction with a push shovel.

[0012] In order to allow the metal to fall into the bulldozer better when it falls from the electromagnetic block, preferably, a second hollow cavity is opened in the electromagnetic block, and a plurality of air nozzles connected with the second hollow cavity are fixedly installed on one side of the electromagnetic block, and the air nozzles are arranged at an angle, and the electromagnetic block is provided with branch pipes respectively connected with the second hollow cavity and the first hollow cavity.

[0013] In order to increase the friction coefficient between the electromagnetic block and the metal part, preferably, one side of the electromagnetic block is provided with anti-slip grooves.

[0014] The working method of the obstacle removal robot includes the following steps: Step 1: When cleaning metal objects on the road surface, the electromagnetic block on the roller is brought close to the ground, and then the electromagnetic block is turned on. The magnetic surface of the electromagnetic block generates a magnetic field, which enables it to absorb and clean the metal objects on the road surface; Step 2: During cleaning, the electromagnetic block is driven to rotate synchronously by the rolling roller. When the electromagnetic block contacts the metal object stuck in the gap but exposed on the road surface, it can move the metal object to loosen it. Step 3: When the rotating electromagnetic block contacts the road surface, the electromagnetic block retracts into the sliding cavity and compresses the elastic airbag, so that the gas is transported into the air jet hole through the second conduit and sprayed toward the gap, so that the dust and debris around the metal object are blown away, and the metal object is loosened; Step 4: After completing the cleaning of metal objects on the road, turn off the electromagnetic block to make it lose its magnetic attraction, and then clean the metal objects that have fallen from the electromagnetic block.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention combines the two methods of pushing and spraying air into the gap, so that it can better change the metal objects and non-metallic objects from a tightly stuck state to a loose state, which is convenient for the subsequent magnetic adsorption of metal objects and the cleaning of non-metallic objects by a brush and a shovel. The obstacle removal robot can better clean the metal objects and non-metallic objects stuck in the gap.

[0016] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture: Figure 1 The structure of the present invention is schematically shown in FIG. Figure 1 ; Figure 2 The structure of the present invention is schematically shown in FIG. Figure 2 ; Figure 3 The cross-sectional view of the roller and electromagnetic block of the present invention is Figure 1 ; Figure 4 The cross-sectional view of the roller and electromagnetic block of the present invention is Figure 2 ; Figure 5 It is a schematic diagram of the internal structure of the roller shaft of the present invention; Figure 6 The present invention Figure 3 A magnified view of part A; Figure 7 The present invention Figure 5 Magnified view of part B.

[0018] In the figure: 1. dozer; 101. support frame; 102. roller; 103. hydraulic telescopic rod; 104. motor; 2. sliding chamber; 201. electromagnetic block; 202. spring one; 203. multi-stage telescopic rod; 204. conductive block one; 205. conductive block two; 206. spring two; 207. anti-slip groove; 3. brush; 4. elastic airbag; 401. catheter one; 402. catheter two; 403. hollow cavity one; 404. jet hole; 5. branch pipe; 501. hollow cavity two; 502. jet nozzle. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0020] Embodiment 1: Reference Figure 3 , Figure 4 , Figure 5 A roadblock-clearing robot for highways, comprising two symmetrically arranged support frames 101, and further comprising: a roller shaft 102 rotatably connected between the two support frames 101, wherein a plurality of sliding cavities 2 are equidistantly provided on the circumference of the roller shaft 102, wherein an electromagnetic block 201 is slidably connected in each sliding cavity 2, wherein one end of the electromagnetic block 201 located outside the sliding cavity 2 is a magnetic attraction surface; two elastic airbags 4, symmetrically arranged in the sliding cavity 2, wherein one end of the elastic airbag 4 is connected to the electromagnetic block 201 is fixedly connected, and the other end is fixedly connected to the inner wall of the sliding cavity 2. A hollow cavity 403 is opened in the roller shaft 102 between two adjacent electromagnetic blocks 201. An injection hole 404 connected to the hollow cavity 403 is opened on the roller shaft 102. A conduit 1 401 connected to the elastic airbag 4 is arranged on the roller shaft 102. A conduit 2 402 is arranged in the roller shaft 102. One end of the conduit 2 402 is connected to the elastic airbag 4, and the other end is connected to the hollow cavity 403.

[0021] It also includes two springs 1 202 , which are symmetrically arranged in the sliding cavity 2 , one end of the spring 1 202 is fixedly connected to the inner wall of the sliding cavity 2 , and the other end is fixedly connected to the electromagnetic block 201 .

[0022] A motor 104 is fixedly mounted on the support frame 101 , and the roller 102 is fixedly connected to the output end of the motor 104 .

[0023] When clearing obstacles on the road, the electromagnetic block 201 on the roller 102 is brought close to the ground, and then the electromagnetic block 201 is turned on. The magnetic surface of the electromagnetic block 201 generates an adsorption force, so that the electromagnetic block 201 can adsorb and clean metal objects on the road. In addition, for some sharp metal objects stuck in the gap but exposed on the road surface, they can also be adsorbed and cleaned by the magnetic surface on the electromagnetic block 201. At the same time, when cleaning, the motor 104 is started, the motor 104 drives the roller 102 to rotate, and the roller 102 drives the electromagnetic block 201 to rotate synchronously. When one side of the electromagnetic block 201 contacts the metal object stuck in the gap but exposed on the road surface, the relatively firm metal object stuck in the gap can be moved to loosen it, which is conducive to the magnetic surface of the electromagnetic block 201 to adsorb and clean the metal object stuck in the gap, thereby improving the cleaning effect; At the same time, when the rotating electromagnetic block 201 contacts the road surface, the electromagnetic block 201 is squeezed and retracts into the sliding cavity 2, and the spring 1 202 and the elastic airbag 4 are compressed (it should be noted that since the magnetic surface of the electromagnetic block 201 is an arc surface, when the electromagnetic block 201 contacts the road surface, it can avoid being stuck with the ground, so that the electromagnetic block 201 can smoothly retract into the sliding cavity 2). At this time, the gas in the elastic airbag 4 is filled into the hollow cavity 1 403 through the conduit 2 402, and is ejected through the jet hole 404, so that it is sprayed into the gap, thereby making the metal The dust and debris around the object are blown away, which helps to loosen the metal object. At the same time, the impact force of the gas can also slightly loosen the metal object, making it easier for the electromagnetic block 201 to absorb and clean it. Then, when the electromagnetic block 201 is separated from the road surface, the compressed spring 1 202 generates a thrust to push the electromagnetic block 201 out of the sliding cavity 2 and stretch the elastic airbag 4. At the same time, when the elastic airbag 4 is stretched, it can absorb external gas through the conduit 1 401 to restore it to an expanded state. Both the conduit 1 401 and the conduit 2 402 are provided with a one-way valve; In summary, by combining the two methods of flicking and spraying air into the gap, it is possible to better change the metal object from a tightly stuck state to a loose state. Therefore, when the electromagnetic block 201 cleans the metal object in the gap, the cleaning effect can be significantly improved.

[0024] Embodiment 2: Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 , a roadblock clearing robot for highways, which is substantially the same as that of the first embodiment, and further comprises a bulldozer 1, two support frames 101 are rotatably connected to the two ends of the bulldozer 1, and both ends of the bulldozer 1 are rotatably connected to hydraulic telescopic rods 103, and the support frames 101 are rotatably connected to the telescopic ends of the hydraulic telescopic rods 103; When clearing obstacles on the road, the shovel 1 can be used to clear large obstacles on the road, and at the same time, metal objects adsorbed on the magnetic surface of the electromagnetic block 201 can be collected; When it is necessary to clear large obstacles on the road surface, the support frame 101 can be pushed by the hydraulic telescopic rod 103 to raise the roller 102 located in front of the dozer 1, so that the dozer 1 can clear the large obstacles on the road surface.

[0025] Multiple groups of brushes 3 are fixedly installed on the outer wall of the roller shaft 102 between two adjacent electromagnetic blocks 201. Each group of brushes 3 is provided with multiple brushes. The brushes 3 are used in conjunction with the push shovel 1. When clearing obstacles on the road, the brush 3 that rotates with the roller 102 can clean small non-metallic objects on the road. At the same time, when cleaning, the brush 3 is used in conjunction with the shovel 1 to clean non-metallic objects, thereby improving the practicality of the obstacle removal robot. At the same time, the gas is sprayed into the gap through the gas jet hole 404, so that the dust and debris around the non-metallic object are blown away, which helps to loosen the non-metallic object. At the same time, when the gas is sprayed, the airflow will exert an impact force on the non-metallic object, so that it can overcome the friction between it and the gap and other possible resistances, so as to blow it out of the gap, so that the brush 3 cooperates with the shovel 1 to clean the non-metallic object stuck in the gap but exposed outside the road surface; In the specific implementation, in order to ensure that the gas ejected from the jet hole 404 exerts impact force on the non-metallic object and can overcome the friction between it and the gap and other possible resistances, thereby blowing it out of the gap, an external booster pump can be used to supply air to the hollow cavity 403 connected to the jet hole 404.

[0026] It should be noted that, since the electromagnetic block 201 can be retracted into the sliding chamber 2 and the final state of being retracted into the sliding chamber 2 is flush with the end of the brush 3 away from the roller 102 , the electromagnetic block 201 will not interfere with the use of the brush 3 .

[0027] Embodiment 3: Reference Figure 1 , Figure 2 , Figure 5 , Figure 7 , a roadblock clearing robot for highways, which is basically the same as that of Example 1, and further, a second hollow cavity 501 is provided in the electromagnetic block 201, a plurality of air jets 502 connected to the second hollow cavity 501 are fixedly installed on one side of the electromagnetic block 201, and the air jets 502 are arranged obliquely, and a branch pipe 5 connected to the second hollow cavity 501 and the first hollow cavity 403 is provided on the electromagnetic block 201; When clearing obstacles on the road, when the electromagnetic block 201 follows the roller 102 to rotate to the side facing the dozer 1 (such as Figure 5As shown in a), the electromagnetic block 201 is turned off, and the metal objects adsorbed on the magnetic surface of the electromagnetic block 201 can fall into the push shovel 1, so that they can be cleaned up in a centralized manner later. At the same time, the magnetic attraction performance of the magnetic surface of the electromagnetic block 201 can be ensured, and the magnetic surface of the electromagnetic block 201 can be prevented from adsorbing too many metal objects, thereby reducing the magnetic attraction performance of the magnetic surface of the electromagnetic block 201, thereby improving the cleaning effect of the electromagnetic block 201 on metal objects; At the same time, Figure 5 As shown, the three electromagnetic blocks 201 are a, b, and c respectively, and the roller 102 rotates clockwise, a contacts the ground first, then b contacts the ground, and finally c contacts the ground. When b contacts the ground, the elastic airbag 4 at b will be compressed, and will not only supply air to the hollow cavity 1 403 connected thereto through the conduit 2 402, but will also supply air to the hollow cavity 2 501 at a through the hollow cavity 1 403 and the branch pipe 5. The gas is ejected from the air nozzle 502, and a one-way valve is provided on the branch pipe 5. At this time, a has been in contact with the ground, and the magnetic force has attracted the metal object. At the same time, the electromagnetic block at a is powered off and closed, the magnetic force disappears, and the metal object falls downward. The air nozzle 502 blows out airflow, exerting wind force in the direction of the dozer 1 on the metal object, blowing the metal object to fall into the dozer 1 better. When c contacts the ground, the air nozzle 502 at b blows out airflow to blow the metal object adsorbed by b.

[0028] It should be noted that the branch pipe 5 is a stretchable and shrinkable hose, so the branch pipe 5 will not interfere with the movement of the electromagnetic block 201.

[0029] Embodiment 4: Reference Figure 3 , Figure 5 , Figure 6 , a roadblock clearing robot for highways, which is basically the same as Example 1, and further includes a conductive block 1 204 and a conductive block 205 arranged in a sliding cavity 2 to control the switch of an electromagnetic block 201, wherein the conductive block 1 204 is slidably connected in the sliding cavity 2, and the conductive block 205 is embedded in the electromagnetic block 201.

[0030] It also includes two multi-stage telescopic rods 203, which are symmetrically fixedly connected to the inner wall of the sliding cavity 2, and the telescopic ends of the multi-stage telescopic rods 203 are fixedly connected to the conductive block 1 204. The multi-stage telescopic rods 203 are sleeved with a spring 206, one end of the spring 206 is fixedly connected to the conductive block 1 204, and the other end is fixedly connected to the inner wall of the sliding cavity 2.

[0031] Method for controlling the switch of electromagnetic block 201: When the electromagnetic block 201 contacts the road surface and retracts into the sliding cavity 2, the conductive block 205 moves synchronously with the electromagnetic block 201. When the conductive block 205 moves the first preset distance and contacts the conductive block 1 204, the electromagnetic block 201 is turned on to generate magnetic attraction, so that the metal objects on the road surface can be adsorbed and cleaned. At the same time, the conductive block 205 will continue to push the conductive block 1 204 to move the second preset distance and compress the spring 206 and the multi-stage telescopic rod 203. Then, when the electromagnetic block 201 is separated from the road surface, it loses the reverse thrust of the ground, and the electromagnetic block 201 will extend out of the sliding cavity 2 under the push of the spring 1 202. At the same time, the compressed spring 206 and the multi-stage telescopic rod 2 03 will push the conductive block 1 204, so that the conductive block 1 204 continues to contact and resist the conductive block 2 205, so that the electromagnetic block 201 still maintains the magnetic attraction until the conductive block 1 204 is reset and the conductive block 2 205 reaches the second preset distance, and then the conductive block 1 204 stops moving, and the conductive block 2 205 continues to reset and move the first preset distance to return to its original position. The conductive block 1 204 and the conductive block 2 205 are no longer in contact and resist each other, and the electromagnetic block 201 loses its magnetic attraction. At this time, the metal object falls downward. During the reset and movement process of the conductive block 1 204 and the conductive block 2 205, the air nozzle 502 always blows air to apply wind force to the metal object in the direction of the dozer 1, blowing the metal object to fall into the dozer 1 better.

[0032] Embodiment 5: Reference Figure 5 , an obstacle-clearing robot for highways, which is substantially the same as that of the first embodiment, and further, an anti-slip pattern 207 is provided on one side of the electromagnetic block 201; When cleaning metal and non-metal objects on the road surface, when the electromagnetic block 201 approaches a metal or non-metal object stuck in a gap but exposed on the road surface, the anti-slip groove 207 increases the friction coefficient between one side of the electromagnetic block 201 and the contact point or surface of the object, thereby further helping the electromagnetic block 201 to move the object to loosen it, thereby helping to clean the metal and non-metal objects stuck in the gap.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as above with a preferred embodiment, it is not used to limit the present invention.

Claims

1. A highway obstacle-clearing robot, comprising two symmetrically arranged support frames (101), characterized in that: Also includes: Rotating a roller shaft (102) connected between the two support frames (101), A plurality of sliding cavities (2) are equidistantly provided on the circumference of the roller shaft (102), each of the sliding cavities (2) is slidably connected to an electromagnetic block (201), and one end of the electromagnetic block (201) located outside the sliding cavity (2) is a magnetic attraction surface; Two elastic air bags (4) are symmetrically arranged in the sliding cavity (2). One end of the elastic airbag (4) is fixedly connected to the electromagnetic block (201), and the other end is fixedly connected to the inner wall of the sliding cavity (2); a hollow cavity (403) is provided in the roller shaft (102) between two adjacent electromagnetic blocks (201); an air injection hole (404) connected to the hollow cavity (403) is provided on the roller shaft (102); a conduit (401) connected to the elastic airbag (4) is provided on the roller shaft (102); a conduit (402) is provided in the roller shaft (102); one end of the conduit (402) is connected to the elastic airbag (4), and the other end is connected to the hollow cavity (403).

2. The obstacle-clearing robot for highways according to claim 1, characterized in that: It also includes two springs one (202), the two springs one (202) being symmetrically arranged in the sliding cavity (2), one end of the spring one (202) being fixedly connected to the inner wall of the sliding cavity (2), and the other end of the spring one (202) being fixedly connected to the electromagnetic block (201).

3. The obstacle-clearing robot for highways according to claim 1, characterized in that: It also includes a conductive block 1 (204) and a conductive block 2 (205) which are arranged in the sliding cavity (2) and are located to control the switch of the electromagnetic block (201); the conductive block 1 (204) is slidably connected in the sliding cavity (2), and the conductive block 2 (205) is embedded in the electromagnetic block (201).

4. The obstacle-clearing robot for highways according to claim 3, characterized in that: It also includes two multi-stage telescopic rods (203), the two multi-stage telescopic rods (203) are symmetrically fixedly connected to the inner wall of the sliding cavity (2), the telescopic ends of the multi-stage telescopic rods (203) are fixedly connected to the first conductive block (204), and the multi-stage telescopic rods (203) are sleeved with a second spring (206), one end of the second spring (206) is fixedly connected to the first conductive block (204), and the other end is fixedly connected to the inner wall of the sliding cavity (2).

5. The obstacle-clearing robot for highways according to claim 1, characterized in that: A motor (104) is fixedly mounted on the support frame (101), and the roller shaft (102) is fixedly connected to an output end of the motor (104).

6. The obstacle-clearing robot for highways according to claim 5, characterized in that: It also comprises a bulldozer (1), wherein the two support frames (101) are rotatably connected to the two ends of the bulldozer (1), respectively, and the two ends of the bulldozer (1) are rotatably connected to hydraulic telescopic rods (103), and the support frames (101) are rotatably connected to the telescopic ends of the hydraulic telescopic rods (103).

7. The obstacle-clearing robot for highways according to claim 6, characterized in that: Multiple groups of brushes (3) are fixedly mounted on the outer wall of the roller shaft (102) between two adjacent electromagnetic blocks (201), each group of the brushes (3) being provided with a plurality of brushes, and the brushes (3) are used in conjunction with a push shovel (1).

8. The obstacle-clearing robot for highways according to claim 1, characterized in that: A second hollow cavity (501) is provided in the electromagnetic block (201); a plurality of air nozzles (502) connected to the second hollow cavity (501) are fixedly mounted on one side of the electromagnetic block (201); the air nozzles (502) are arranged in an inclined manner; and branch pipes (5) respectively connected to the second hollow cavity (501) and the first hollow cavity (403) are arranged on the electromagnetic block (201).

9. The obstacle-clearing robot for highways according to claim 1, characterized in that: An anti-slip pattern (207) is provided on one side of the electromagnetic block (201).

10. A working method of an obstacle-clearing robot, using the obstacle-clearing robot for highways as claimed in claim 1, characterized in that: The steps include: Step 1: When cleaning metal objects on the road surface, the electromagnetic block (201) on the roller (102) is brought close to the ground, and then the electromagnetic block (201) is turned on, so that the magnetic absorption surface of the electromagnetic block (201) generates a magnetic field, so that the electromagnetic block (201) can absorb and clean the metal objects on the road surface; Step 2: During cleaning, the electromagnetic block (201) is driven to rotate synchronously by the rolling roller (102), so that when the electromagnetic block (201) contacts the metal object stuck in the gap but exposed on the road surface, the electromagnetic block (201) can move the metal object to loosen it; Step 3: When the rotating electromagnetic block (201) contacts the road surface, the electromagnetic block (201) retracts into the sliding chamber (2) and compresses the elastic airbag (4), so that the gas is transported into the air injection hole (404) through the second conduit (402) and sprayed toward the gap, so that dust and debris around the metal object are blown away, and the metal object is loosened; Step 4: After the metal objects on the road surface are cleaned, the electromagnetic block (201) is turned off to make the electromagnetic block (201) lose its magnetic attraction, and then the metal objects dropped from the electromagnetic block (201) can be cleaned.

Images