Multifunctional urban flood-prevention dredging vehicle

Abstract

The utility model discloses a multifunctional city flood prevention dredging vehicle relates to flood prevention vehicle technical field, including the car body, is equipped with cleaning assembly, uncovering subassembly and blocking net putting subassembly in the car body, the first elevating system, second elevating system and third elevating system of cleaning assembly are installed in the front side of the material collecting hopper from front to back in proper order, are connected with two edge brushes, horizontal collection gyro wheel and material collecting spade respectively, cleaning assembly still includes the dirt sucking mechanism, and the dirt sucking mechanism includes the fourth elevating system, sucking disc, vacuum pump and dirt storage box, the uncovering subassembly includes the row and hangs the mechanism, the fifth elevating system, mounting seat and the arm of taking, and the blocking net putting subassembly includes the cylindrical frame, and multiple cylindrical frames are coaxial and set up, and multiple cylindrical blocking nets are all set up on each cylindrical frame, this vehicle has multiple functions, and the rainwater grate can be realized automatic opening through the uncovering subassembly, and through cleaning assembly can effectively clean and collect the garbage such as sand, fallen leaves and so on that the silted sand on the road surface.

Description

Technical Field

[0001] This utility model relates to the field of flood control vehicle technology, specifically to a multi-functional urban flood control and dredging vehicle. Background Technology

[0002] During the rainy season, some road sections or bridge culverts may accumulate deep water, which can easily lead to problems such as cars getting flooded and pedestrians being unable to pass. The current method is to manually clean, dredge, and remove the storm drains one by one to increase drainage capacity, but this method is labor-intensive and poses significant safety hazards.

[0003] In addition, after the water is drained, there are often silt, gravel, fallen leaves, garbage and other debris on the road surface, which traditional sweepers find difficult to effectively clean and collect.

[0004] Therefore, there is an urgent need to develop a multi-functional urban flood control and dredging vehicle. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a multifunctional urban flood control and dredging vehicle.

[0006] The technical solution of this utility model is: a multi-functional urban flood control and drainage vehicle, including a vehicle body, a sweeping component at the front of the inner cavity of the vehicle body, an opening component for opening the rain grate in the middle of the inner cavity, and at least one set of barrier net delivery component at the rear of the inner cavity. The cleaning assembly includes a first lifting mechanism, a second lifting mechanism, a third lifting mechanism, a bucket elevator, and a collection hopper fixed in the vehicle's internal cavity. The first, second, and third lifting mechanisms are sequentially installed from front to back on the front side of the collection hopper, and are respectively connected to two side brushes, horizontal collecting rollers, and a collection shovel. A horizontal fixed bracket is fixed to the front side of the collection hopper. The bucket elevator is inclinedly positioned between the third lifting mechanism and the collection hopper, with its upper end above the collection hopper. A ring-shaped protective bracket fitted onto the fixed bracket is provided at its rear, and load-bearing wheels are provided on both sides of its lower end. The rear of the collection shovel is hinged to the lower end of the bucket elevator, and ground-contact wheels are provided on its sides and middle. Its sides are connected to the bucket elevator and the third lifting mechanism respectively through a first and a second buffer. An emergency brake protector is installed on the second buffer. The barrier net deployment assembly includes a cylindrical frame and an electric lock. Multiple cylindrical frames are coaxially arranged, and the upper ends of the cylindrical frames are fixedly connected to the roof of the vehicle. Multiple cylindrical barrier nets are sequentially fitted on each cylindrical frame from top to bottom. The electric lock is installed on the cylindrical frame to lock the barrier nets.

[0007] Preferably, the bucket elevator is suspended from the vehicle body by multiple third buffers on both sides of its upper end, and the first, second and third buffers are all elastic buffers.

[0008] Preferably, the first lifting mechanism includes a first lifter, a swing frame, and an adjustment bracket. The front end of the swing frame is connected to the adjustment bracket, and the rear end is hinged to the bottom of the vehicle body. The two side brushes are respectively installed at the left and right ends of the adjustment bracket. The main body of the first lifter is hinged to the vehicle body, and its output end is hinged to the swing frame.

[0009] Preferably, the cleaning assembly further includes a spray washing system, which includes a first water pump, a second water pump, a high-pressure nozzle, a spray pipe, and a water tank fixed in the vehicle body cavity. The first and second water pumps are both installed in the water tank, and their outlets are respectively connected to the high-pressure nozzle and the spray pipe through water pipes. There are two high-pressure nozzles, which are arranged side by side and fixed to the front side of the adjustment bracket by support frames. The spray pipe is horizontally arranged above the front side of the collecting roller, and its left and right ends are respectively fixedly connected to the left and right ends of the collecting roller mounting bracket by connecting rods.

[0010] Preferably, the cover opening assembly includes a gantry crane mechanism, a fifth lifting mechanism, and a mounting base arranged sequentially from top to bottom, and the output end of the gantry crane mechanism is connected to the mounting base through the fifth lifting mechanism; The mounting base has at least two receiving cavities, each with a through hole at the center of its bottom, and each cavity is equipped with a lifting arm that can move up and down. Each cavity is equipped with a buffer spring that provides cushioning for the lifting arm to move upward. The lifting arm passes through the through hole and has a stop switch on its lower outer wall. It also includes a fixed frame and a telescopic device. The lifting arm is a hollow tube with a vertical pull rod inside its cavity. Multiple lifting arms are connected by the fixed frame. The telescopic device is vertically mounted on the fixed frame, and its output end is connected to all the pull rods through a connecting frame. The lower end of the pull rod is connected to an expander located in the cavity of the lifting arm. The expander is located below the position switch. When the telescopic device moves the pull rod, the pull rod moves the expander to expand and lock the drain hole of the rain grate. The upper end of the lifting arm is provided with a contact element, and the top of the receiving cavity is provided with a limit switch. When the contact element triggers the limit switch, the fifth lifting mechanism stops descending.

[0011] Preferably, the lower end of the lifting arm is provided with a sliding ball, the outer diameter of the lifting arm is smaller than the diameter of the through hole, and an offset stop is fixed on the outer wall of the lifting arm on the lower side of the through hole; the offset stop is used in conjunction with the through hole, and when the offset stop is inserted into the through hole, it causes the lifting arm to shift in the through hole.

[0012] Preferably, the expander includes a cone and multiple vertical clamping plates. The upper end of the cone is fixedly connected to the lower end of the pull rod. The upper part of the clamping plates is rotatably installed in the inner cavity of the lifting arm via a rotating shaft, and the multiple clamping plates are arranged in a circumferential array in the inner cavity of the lifting arm. Each rotating shaft is equipped with a torsion spring. When the pull rod drives the cone to move upward, the cone drives the multiple clamping plates to expand outward synchronously. When the cone returns to its original position, the multiple clamping plates retract into the inner cavity of the lifting arm under the action of the torsion springs.

[0013] Compared with the prior art, this utility model has the following advantages: This vehicle has multiple functions. The cover-opening component can automatically open the rain grate, and the barrier net deployment component can deploy a barrier net to cover the opened rain grate, effectively reducing the labor intensity of the staff and eliminating safety hazards. The high-pressure nozzle, two side brushes, collection rollers, collection shovel and bucket elevator can effectively sweep and collect sand, gravel, fallen leaves, garbage and other debris accumulated on the road. The suction mechanism can also be activated to clean up the remaining fine debris using suction cups. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cleaning component. Figure 3 This is a schematic diagram of the opening mechanism; Figure 4 This is a schematic diagram of the expander in Example 3.

[0015] In the diagram: 1. First lifting mechanism; 2. Second lifting mechanism; 3. Third lifting mechanism; 4. Bucket elevator; 5. Collection hopper; 6. Side brush; 7. Collection roller; 8. Collection shovel; 9. Fixed bracket; 10. Circular protective bracket; 11. Bearing wheel; 12. Ground wheel; 13. First buffer; 14. Second buffer; 15. Emergency brake protector; 16. Third buffer; 17. Fourth lifting mechanism; 18. Waste storage tank; 19. Buffer; 20. Suction cup; 21. Suction pipe; 22. Swing frame; 23. Adjustment bracket; 24. Water tank; 25. First water pump; 26. Second... 27. Water pump, 28. Water pipe, 29. High-pressure nozzle, 30. Sprinkler pipe, 31. Hoisting mechanism, 32. Fifth lifting mechanism, 33. Mounting base, 3201. Receiving cavity, 34. Lifting arm, 35. Tie rod, 36. Connecting frame, 37. Expansion joint, 38. Sliding ball, 39. Offset stop, 40. Buffer spring, 41. Lifting arm stop, 42. Position switch, 43. Contact element, 44. Limit switch, 45. Rain grate, 46. Cylindrical frame, 47. Barrier net, 48. Electric lock, 49. Cone, 50. Card plate, 5001. Guide slope, 51. Rotating shaft. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0017] Reference Figure 1-3 As shown, a multi-functional urban flood control and dredging vehicle includes a vehicle body, a sweeping component at the front of the inner cavity, an opening component for opening the rain grate 45 in the middle of the inner cavity, and at least one set of barrier net 47 delivery component at the rear of the inner cavity.

[0018] The cleaning assembly includes a first lifting mechanism 1, a second lifting mechanism 2, a third lifting mechanism 3, a bucket elevator 4, and a collection hopper 5 fixed in the vehicle body cavity. The first lifting mechanism 1, the second lifting mechanism 2, and the third lifting mechanism 3 are installed sequentially from front to back on the front side of the collection hopper 5, and are respectively connected to two side brushes 6, horizontal collecting rollers 7, and a collection shovel 8. A horizontal fixed bracket 9 is fixed on the front side of the collection hopper 5. The bucket elevator 4 is inclinedly set between the third lifting mechanism 3 and the collection hopper 5, with its upper end above the collection hopper 5. A ring-shaped protective bracket 10 is provided at its rear, which is fitted on the fixed bracket 9. Bearing wheels 11 are provided on both sides of its lower end. The rear of the collection shovel 8 is hinged to the lower end of the bucket elevator 4. Ground-contact wheels 12 are provided on its sides and middle part. Its side is connected to the bucket elevator 4 and the third lifting mechanism 3 respectively through a first buffer 13 and a second buffer 14. An emergency brake protector 15 is installed on the second buffer 14.

[0019] More specifically, the upper sides of the bucket elevator 4 are suspended from the vehicle body by two third buffers 16 on each side. The first buffer 13, the second buffer 14 and the third buffer 16 are all elastic buffers 19.

[0020] The cleaning assembly also includes a sludge suction mechanism installed between the bucket elevator 4 and the receiving hopper 5. The sludge suction mechanism includes a fourth lifting mechanism 17, a suction cup 20, a vacuum pump, and a sludge storage tank 18 fixed in the inner cavity of the vehicle body. The fourth lifting mechanism 17 is installed in the vehicle body, and its output end is connected to the suction cup 20 through a buffer 19. The vacuum pump is installed on the sludge storage tank 18, and its inlet is connected to the suction cup 20 through a suction pipe 21, and its outlet is connected to the sludge storage tank 18.

[0021] The cover opening assembly includes a gantry crane 30, a fifth lifting mechanism 31, and a mounting base 32 arranged sequentially from top to bottom. The output end of the gantry crane 30 is connected to the mounting base 32 through the fifth lifting mechanism 31.

[0022] The mounting base 32 has two receiving cavities 3201. Each receiving cavity 3201 has a through hole at the center of its bottom, and each receiving cavity 3201 is equipped with a lifting arm 33 that can move up and down. The receiving cavity 3201 is equipped with a buffer spring 40 to provide a buffer for the lifting arm 33 to move up. The lifting arm 33 passes through the through hole, and a position switch 42 is provided on its lower outer wall. When the position switch 42 is triggered, it indicates that the lifting arm 33 has been inserted into the drain hole of the rain grate 45.

[0023] More specifically, the upper outer wall of the lifting arm 33 is provided with a lifting arm stop 41 that is always located above the through hole. The buffer spring 40 is sleeved on the lifting arm 33, with its upper end supported on the stepped seat on the inner wall of the receiving cavity 3201 and its lower end supported on the lifting arm stop 41.

[0024] It also includes a fixed frame and a telescopic device 36. The lifting arm 33 is a hollow tube with a vertical pull rod 34 inside its cavity. The two lifting arms 33 are connected by the fixed frame. The telescopic device 36 is vertically installed on the fixed frame, and its output end is connected to all the pull rods 34 through the connecting frame 35. The lower end of the pull rod 34 is connected to an expander 37 located in the cavity of the lifting arm 33. The expander 37 is located below the position switch 42. When the telescopic device 36 moves the pull rod 34, the pull rod 34 moves the expander 37 to expand and lock the drain hole of the rain grate 45.

[0025] The upper end of the lifting arm 33 is provided with a contact element 43, and the top of the receiving cavity 3201 is provided with a limit switch 44. When the contact element 43 triggers the limit switch 44, the fifth lifting mechanism 31 stops descending.

[0026] The lower end of the lifting arm 33 is tapered and has a sliding ball 38 at the end. The outer diameter of the lifting arm 33 is smaller than the diameter of the through hole, and an offset stop 39 is fixed on the outer wall of the lifting arm 33 on the lower side of the through hole. The offset stop 39 is used in conjunction with the through hole. When the offset stop 39 is inserted into the through hole, it causes the lifting arm 33 to shift in the through hole.

[0027] More specifically, the offset stop 39 is a vertically set triangular plate.

[0028] In addition, the cover opening assembly also includes a controller, which is electrically connected to the overhead crane mechanism 30, the fifth lifting mechanism 31, the telescopic device 36, the position switch 42, and the limit switch 44, respectively.

[0029] The barrier net 47 deployment assembly includes a cylindrical frame 46 and an electronically controlled lock 48. Multiple cylindrical frames 46 are coaxially arranged, and the upper ends of each cylindrical frame 46 are fixedly connected to the vehicle roof. Multiple cylindrical barrier nets 47 are sequentially mounted on each cylindrical frame 46 from top to bottom. The electronically controlled lock 48 is installed on the cylindrical frame 46 to lock the barrier nets 47. More specifically, the barrier net 47 deployment assembly corresponds to an opening in the vehicle floor. When the electronically controlled lock 48 on the corresponding barrier net 47 is opened, the barrier net 47 immediately slides down the cylindrical frame 46 and leaves the vehicle body.

[0030] In use, drive the vehicle to a flooded section of road and activate the second lifting mechanism 2. The second lifting mechanism 2 will cause the collecting roller 7 to touch the ground. Then, drive the vehicle forward and use the collecting roller 7 to sweep away debris from the rain grate 45, preventing debris from interfering with the operation of the cover opening assembly. Then, position the cover opening assembly directly above the rain grate 45 and activate the fifth lifting mechanism 31. The fifth lifting mechanism 31 will cause the mounting base 32 to descend.

[0031] Scenario 1: During descent, both lifting arms 33 are inserted into the drain holes of the rain grate 45. When the positioning switch 42 contacts the grid of the rain grate 45, it is triggered. After receiving the signal from the positioning switch 42, the controller first controls the fifth lifting mechanism 31 to stop descent, then controls the telescopic device 36 to move the pull rod 34, causing the pull rod 34 to expand and jam the expander 37 to block the drain hole of the rain grate 45. Then, the controller controls the fifth lifting mechanism 31 to raise the mounting base 32 to lift the rain grate 45, and the gantry crane 30 moves the mounting base 32 to one side a distance. Finally, the fifth lifting mechanism 31 lowers the mounting base 32 a distance before controlling the expander 37 to reset and release the rain grate 45.

[0032] Scenario 2: During descent, the lower end of the lifting arm 33 does not insert precisely into the drain hole of the rain grate, but instead touches the grid of the rain grate 45. The mounting base 32 continues to descend. When the offset stop 39 is inserted into the through hole, it causes the lifting arm 33 to shift within the through hole. At this time, the sliding ball 38 at the lower end of the lifting arm 33 slides to one side on the grid of the rain grate 45. Then, after shifting, both lifting arms 33 are inserted into the drain hole of the rain grate 45. Subsequently, the positioning switch 42 is triggered when it contacts the grid of the rain grate 45, and the subsequent actions are the same as in Scenario 1.

[0033] Scenario 3: During descent, if both lifting arms 33 fail to insert into the drain holes of the rain grate 45 after shifting, the mounting base 32 continues to descend. When the contact element 43 triggers the limit switch 44, the controller controls the fifth lifting mechanism 31 to stop descending, then raises the mounting base 32. The gantry crane 30 then moves the mounting base 32 to a different position. Subsequently, the controller controls the fifth lifting mechanism 31 to lower the mounting base 32 again until both lifting arms 33 are inserted into the drain holes of the rain grate 45. Once both lifting arms 33 are inserted into the drain holes of the rain grate 45, the subsequent actions are the same as in Scenario 1.

[0034] After opening the storm drain grate 45, adjust the vehicle according to the storm drain positioning indicator so that a set of barrier net 47 deployment components are facing the storm drain, and control it to release a barrier net 47 to cover the storm drain: open the electronic lock 48 on the corresponding barrier net 47, and the barrier net 47 will slide down along the cylindrical frame 46 away from the vehicle body and finally cover the storm drain, thereby preventing accidents from happening.

[0035] After the accumulated water is drained, cleaning is carried out using the cleaning components: the first lifting mechanism 1, the second lifting mechanism 2, and the third lifting mechanism 3 operate, respectively driving the two side brushes 6, the collecting rollers 7, and the collecting shovel 8 to the ground; the fourth lifting mechanism 17 operates, driving the suction cup 20 to descend; then the vehicle is driven forward, the two side brushes 6 rotate inward to gather the garbage and dirt towards the center, the collecting rollers 7 rotate to sweep the garbage and dirt onto the bucket elevator 4 through the collecting shovel 8, the bucket elevator 4 then transports the garbage into the collecting hopper 5, and the suction cup 20 at the rear is responsible for sucking the remaining fine garbage and dirt into the waste storage box 18. During the forward movement, the first buffer 13 and the second buffer 14 provide cushioning for the collecting shovel 8, and the third buffer 16 provides cushioning for the bucket elevator 4.

[0036] A rubber pad is installed at the front end of the receiving shovel 8 to ensure its close contact with the ground during operation. The rubber pad also allows the receiving shovel 8 to cross small, low, fixed obstacles, thereby improving the continuity and stability of the sweeping operation. When the receiving shovel 8 hits a fixed obstacle, it will rotate counterclockwise and drive the bucket elevator 4 to shift obliquely upward with the cooperation of the annular protective bracket 10 and the fixed bracket 9, causing it to press against the third buffer 16. When the second buffer 14 is stretched beyond a certain limit or pressure, the emergency brake protector 15 can send an emergency stop signal to stop the vehicle, thereby protecting the first buffer 13, the second buffer 14, and the third buffer 16 and other auxiliary accessories from damage. Example 2

[0037] As a preferred embodiment of this utility model, this embodiment modifies the first lifting mechanism 1 based on embodiment one and adds a spray rinsing system, specifically as follows: The first lifting mechanism 1 includes a first lifter, a swing frame 22 and an adjustment bracket 23. The front end of the swing frame 22 is connected to the adjustment bracket 23, and the rear end is hinged to the bottom of the vehicle body. Two side brushes 6 are respectively installed at the left and right ends of the adjustment bracket 23. The main body of the first lifter is hinged to the vehicle body, and its output end is hinged to the swing frame 22.

[0038] During operation, the output end of the first lifter extends and drives the swing frame 22 to rotate downward, causing the two side brushes 6 to touch the ground.

[0039] The cleaning assembly also includes a spray washing system, which includes a first water pump 25, a second water pump 26, a high-pressure nozzle 28, a spray pipe 29, and a water tank 24 fixed in the vehicle body cavity. The first water pump 25 and the second water pump 26 are both installed in the water tank 24, and their outlets are connected to the high-pressure nozzle 28 and the spray pipe 29 respectively through water pipes 27. There are two high-pressure nozzles 28, which are arranged side by side and fixed to the front side of the adjustment bracket 23 by support brackets. The spray pipe 29 is horizontally arranged above the front side of the collecting roller 7, and its left and right ends are fixedly connected to the left and right ends of the mounting bracket of the collecting roller 7 by connecting rods.

[0040] During the cleaning process, the spray flushing system is activated, using two high-pressure nozzles 28 at the front to flush up the accumulated mud, sand and other debris, thus facilitating the cleaning of the side brush 6 and the collection roller 7. Water is sprayed onto the ground through the spray pipe 29 to reduce dust. Example 3

[0041] As a preferred embodiment of this utility model, this embodiment is based on the design of the expander 37 in Embodiment 1, specifically as follows: Reference Figure 4 As shown, the expander 37 includes a cone 49 and four vertical clamping plates 50. The upper end of the cone 49 is fixedly connected to the lower end of the pull rod 34. The upper part of the clamping plates 50 is rotatably installed in the inner cavity of the lifting arm 33 via a rotating shaft 51, and the four clamping plates 50 are arranged in a circumferential array in the inner cavity of the lifting arm 33. Each rotating shaft 51 is equipped with a torsion spring, which provides an inward rotational force for the clamping plates 50.

[0042] More specifically, the lower inner edge of the clamping plate 50 is provided with a guide slope 5001. When the cone 49 moves upward, its conical surface first contacts the guide slope 5001, thereby facilitating the clamping plate 50 to be pushed outward.

[0043] When the pull rod 34 moves the cone 49 upward, the cone 49 moves the four clamping plates 50 outward in sync; when the cone 49 returns to its original position, the four clamping plates 50 retract into the inner cavity of the lifting arm 33 under the action of the torsion spring.

[0044] In summary, this vehicle has multiple functions. The cover opening component can automatically open the rain grate 45. The barrier net 47 can be deployed by the barrier net 47 deployment component to cover the opened rain grate, effectively reducing the labor intensity of the staff and eliminating safety hazards. The high-pressure nozzle 28, two side brushes 6, collection rollers 7, collection shovel 8 and bucket elevator 4 can effectively sweep and collect sand, fallen leaves, garbage and other debris accumulated on the road. The suction mechanism can also be activated to use the suction cup 20 to clean up the remaining fine debris.

[0045] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.

Claims

1. A multi-functional urban flood control and dredging vehicle, comprising a vehicle body, characterized in that: The front of the vehicle's internal cavity is equipped with a sweeping assembly, the middle of the internal cavity is equipped with an opening assembly for opening the rain grate, and the rear of the internal cavity is equipped with at least one set of barrier net delivery assembly. The cleaning assembly includes a first lifting mechanism, a second lifting mechanism, a third lifting mechanism, a bucket elevator, and a collection hopper fixed in the vehicle's internal cavity. The first, second, and third lifting mechanisms are sequentially installed from front to back on the front side of the collection hopper, and are respectively connected to two side brushes, horizontal collecting rollers, and a collection shovel. A horizontal fixed bracket is fixed to the front side of the collection hopper. The bucket elevator is inclinedly positioned between the third lifting mechanism and the collection hopper, with its upper end above the collection hopper. A ring-shaped protective bracket fitted onto the fixed bracket is provided at its rear, and load-bearing wheels are provided on both sides of its lower end. The rear of the collection shovel is hinged to the lower end of the bucket elevator, and ground-contact wheels are provided on its sides and middle. Its sides are connected to the bucket elevator and the third lifting mechanism respectively through a first and a second buffer. An emergency brake protector is installed on the second buffer. The barrier net deployment assembly includes a cylindrical frame and an electric lock. Multiple cylindrical frames are coaxially arranged, and the upper ends of the cylindrical frames are fixedly connected to the roof of the vehicle. Multiple cylindrical barrier nets are sequentially fitted on each cylindrical frame from top to bottom. The electric lock is installed on the cylindrical frame to lock the barrier nets.

2. The multi-functional urban flood control and dredging vehicle according to claim 1, characterized in that: The bucket elevator is suspended from the vehicle body by multiple third buffers on both sides of its upper end. The first, second and third buffers are all elastic buffers.

3. The multi-functional urban flood control and dredging vehicle according to claim 1, characterized in that: The first lifting mechanism includes a first lifter, a swing frame, and an adjustment bracket. The front end of the swing frame is connected to the adjustment bracket, and the rear end is hinged to the bottom of the vehicle body. The two side brushes are respectively installed at the left and right ends of the adjustment bracket. The main body of the first lifter is hinged to the vehicle body, and its output end is hinged to the swing frame.

4. The multi-functional urban flood control and dredging vehicle according to claim 3, characterized in that: The cleaning assembly also includes a spray washing system, which includes a first water pump, a second water pump, a high-pressure nozzle, a spray pipe, and a water tank fixed in the vehicle body cavity. The first and second water pumps are both installed in the water tank, and their outlets are connected to the high-pressure nozzle and the spray pipe, respectively, through water pipes. There are two high-pressure nozzles, which are arranged side by side and fixed to the front of the adjustment bracket by support frames. The spray pipe is horizontally arranged above the front of the collection roller, and its left and right ends are fixedly connected to the left and right ends of the collection roller mounting bracket by connecting rods.

5. A multi-functional urban flood control and dredging vehicle according to claim 1, characterized in that: The opening assembly includes a gantry crane mechanism, a fifth lifting mechanism, and a mounting base arranged sequentially from top to bottom. The output end of the gantry crane mechanism is connected to the mounting base through the fifth lifting mechanism. The mounting base has at least two receiving cavities, each with a through hole at the center of its bottom, and each cavity is equipped with a lifting arm that can move up and down. Each cavity is equipped with a buffer spring that provides cushioning for the lifting arm to move upward. The lifting arm passes through the through hole and has a stop switch on its lower outer wall. It also includes a fixed frame and a telescopic device. The lifting arm is a hollow tube with a vertical pull rod inside its cavity. Multiple lifting arms are connected by the fixed frame. The telescopic device is vertically mounted on the fixed frame, and its output end is connected to all the pull rods through a connecting frame. The lower end of the pull rod is connected to an expander located in the cavity of the lifting arm. The expander is located below the position switch. When the telescopic device moves the pull rod, the pull rod moves the expander to expand and lock the drain hole of the rain grate. The upper end of the lifting arm is provided with a contact element, and the top of the receiving cavity is provided with a limit switch. When the contact element triggers the limit switch, the fifth lifting mechanism stops descending.

6. A multi-functional urban flood control and dredging vehicle according to claim 5, characterized in that: The lower end of the lifting arm is provided with a sliding ball, the outer diameter of the lifting arm is smaller than the diameter of the through hole, and an offset stop is fixed on the outer wall of the lifting arm on the lower side of the through hole; the offset stop is used in conjunction with the through hole, and when the offset stop is inserted into the through hole, it causes the lifting arm to shift in the through hole.

7. A multi-functional urban flood control and dredging vehicle according to claim 5, characterized in that: The expander includes a cone and multiple vertical clamping plates. The upper end of the cone is fixedly connected to the lower end of the pull rod. The upper part of the clamping plates is rotatably installed in the inner cavity of the lifting arm via a rotating shaft, and the multiple clamping plates are arranged in a circumferential array in the inner cavity of the lifting arm. Each rotating shaft is equipped with a torsion spring. When the pull rod moves the cone upward, the cone moves the multiple clamping plates outward synchronously. When the cone returns to its original position, the multiple clamping plates retract into the inner cavity of the lifting arm under the action of the torsion springs.

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