Left-right translation type washing and sucking disc with nozzle active rotation and cleaning vehicle

Abstract

The present application relates to the field of environmental protection vehicles, and proposes a left-right translation type washing and sucking disc with a rotating nozzle and a cleaning vehicle, which comprises a bottom-opened washing and sucking disc shell, the upper surface of the washing and sucking disc shell is provided with a rack, the rack is drivingly connected with a gear, the gear is connected with a gear motor for driving the rotation of the gear, and the gear motor is connected with a vehicle body; the inside of the washing and sucking disc shell is rotatably connected with at least one spray rod with a horizontal axis, both ends of the spray rod are respectively provided with a water spraying head, and each water spraying head is obliquely arranged at a set angle with the ground; and a suction port for sucking away sewage and garbage is arranged on the top of the washing and sucking disc. The device can solve the problems that the existing nozzle cannot effectively clean the position close to the curb stone and the stubborn stains on the road surface are not clean enough.

Description

Technical Field

[0001] This invention relates to the field of cleaning vehicles, and more particularly to a left-right translational suction cup with an actively rotating nozzle and a cleaning vehicle. Background Technology

[0002] Currently, most deep cleaning trucks use fixed nozzles for their suction cups. Fixed-position suction cups cannot effectively clean areas near curbs, and because the nozzles are fixed inside the suction cup, they can only effectively clean a unit area once per unit time, failing to remove stubborn stains. A few large fuel-powered deep cleaning trucks use passively rotating nozzles, meaning they have multiple freely rotating nozzles. The reaction force from pressurized water drives the nozzles to rotate. While this increases the number of cleaning passes per unit time, the passive rotation and the resulting water flow reaction force significantly weaken the spray energy, resulting in a significantly reduced cleaning power and only mediocre road cleaning effect. Furthermore, because existing nozzles spray water vertically, the water bounces off the road surface, blowing gravel and other debris deeper into crevices, hindering debris collection. Summary of the Invention

[0003] This invention proposes a left-right translational cleaning suction cup with an actively rotating nozzle and a cleaning cart to solve the problems of existing nozzles being unable to effectively clean areas near curbs and not thoroughly cleaning stubborn stains on the road surface.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] A left-right translating suction cup with an actively rotating nozzle includes a suction cup housing with an open bottom. A rack is provided on the upper surface of the suction cup housing, and a gear is driven and connected to the rack. The gear is connected to a gear motor that drives the rack to rotate, and the gear motor is connected to a vehicle body. At least one spray bar with a horizontally arranged axis is rotatably connected inside the suction cup housing. Each end of the spray bar is equipped with a water nozzle, and each water nozzle is inclined at a set angle to the ground. A suction port for sucking up sewage and garbage is provided at the top of the suction cup.

[0006] Preferably, the spray bar consists of three parts, each of which is connected to a pulley. Each pulley is rotatably connected to the top of the suction cup housing, and the three pulleys are connected by a belt drive.

[0007] Preferably, there are three spray bars, which are arranged in a straight line along the horizontal plane. Each spray bar is connected to a passive pulley, and an active pulley is provided between each pair of adjacent spray bars. Each active pulley is connected to a pulley motor, and the pulley motor is installed outside the washing suction cup housing.

[0008] Preferably, the spray directions of the spray nozzles at both ends of each spray bar are set opposite to each other.

[0009] Preferably, the outer surface of the suction cup housing is provided with a guide shaft, and a slider is slidably connected to the guide shaft, the slider being connected to the vehicle body.

[0010] Preferably, there are two suction ports, which are symmetrically arranged on the left and right sides of the upper surface of the suction cup housing.

[0011] Preferably, the suction port is located outside the nozzle.

[0012] The present invention also discloses a cleaning vehicle having a washing suction cup as described above.

[0013] The beneficial effects of this invention are:

[0014] In this invention, the suction cup can achieve left-right translation via a gear and rack mechanism, increasing the effective working area of ​​the cleaning vehicle and solving the problem that conventional suction cups cannot get close enough to clean curbs. The suction cup has multiple rotating spray heads internally, significantly increasing the number of cleaning cycles per unit area per unit time compared to conventional suction cups, ensuring a cleaner road surface. Furthermore, the entire suction cup has dual-channel suction ports, located on both sides, effectively recovering wastewater. The two spray heads on the spray bar are angled at a certain angle to the ground, creating a shoveling motion rather than a vertical water jet. A vertical water jet would blow gravel and other debris deeper into road crevices, hindering debris collection. The rotation direction of the spray bar overcomes the reaction force of the high-pressure water jet, effectively combining the kinetic energy of the water jet with the mechanical energy of the spray bar for a cleaner road surface. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the upper surface of the suction cup.

[0016] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the suction cup.

[0017] Figure 3 This is a schematic diagram of the internal planar structure of the suction cup.

[0018] In the diagram, 1. Washing suction cup housing, 2. Rack, 3. Gear motor, 4. Guide shaft, 5. Suction port, 6. Water pipe, 7. Pulley motor, 8. Rotary nozzle, 9. Spray bar, 10. Spray head, 11. First driving pulley, 12. Second driven pulley, 13. Fourth belt, 14. Third driven pulley, 15. Second driving pulley, 16. Third belt, 17. Second belt, 18. First belt, 19. First driven pulley. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. To make the objectives, features, and advantages of the present invention more apparent and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0020] Reference Figure 1-3 This invention discloses a left-right translating cleaning suction cup with an actively rotating nozzle. The suction cup includes a rectangular suction cup housing 1 with an open bottom. A rack 2 is mounted on the upper surface of the housing, driven by a gear. The gear is connected to a gear motor 7, which drives the rack's rotation. The gear motor is connected to the vehicle frame. A guide shaft 4 is mounted on the upper surface of the suction cup housing. The axis of the guide shaft is aligned with the extension direction of the rack, both running left-right relative to the vehicle body. A slider is slidably connected to the guide shaft surface, and the slider is connected to the vehicle frame. The gear motor drives the gear to rotate, and under the transmission of the gear, the rack moves the suction cup left and right. This left-right translation of the suction cup effectively increases the working area of ​​the cleaning vehicle, allowing for the cleaning of wider roads. Furthermore, since conventional suction cups are installed at the bottom of the vehicle, and due to the limitations of the vehicle frame, they cannot approach the curb, the suction cup in this application can slide along the vehicle body to the outside, effectively cleaning the curb. The guide shaft and slider structure can provide guidance and support for the left and right translation of the washing suction cup, making the translation of the washing suction cup more stable and reliable.

[0021] Water pipe 6 connects to the water tank on the vehicle body and three rotating nozzles 8 on the top surface of the suction cup housing. These three nozzles are arranged in a straight line on the top surface of the suction cup, with each nozzle extending downwards into the suction cup housing 1. Inside the suction cup housing, each nozzle is connected to a spray bar 9, whose axis is horizontally positioned, and whose center in the left-right direction is connected to the rotating nozzle 8. A water nozzle 10 is installed at both ends of the spray bar, with the water outlet direction forming an angle greater than 45 degrees and less than 90 degrees with the ground. The multiple sets of rotating nozzles significantly increase the number of cleaning cycles per unit area per unit time, ensuring a cleaner road surface. The angle between the spray nozzles and the ground creates a shoveling motion, rather than a vertical spray, which more effectively removes stubborn stains from the ground.

[0022] Each rotating nozzle has a passive pulley mounted inside the suction cup housing. An active pulley is installed between two adjacent passive pulleys, with its drive shaft extending upwards through the upper surface of the suction cup housing and connecting to the pulley motor. The active and passive pulleys are connected by belts; four belts are used here. The first belt 18 connects the leftmost first passive pulley 19 to the leftmost first active pulley 11. The second belt 17 connects the first passive pulley 19 to the middle second passive pulley 12. The third belt 16 connects the second passive pulley 12 to the rightmost third passive pulley 14. The fourth belt 13 connects the second active pulley 15 to the third passive pulley 14. This connection method allows both pulley motors to start simultaneously, or, if one pulley motor fails, the other pulley motor can continue to drive all three sets of nozzles simultaneously. The direction of rotation of the spray bar is to overcome the reaction force of the high-pressure water flow on the spray bar. It is equivalent to the combined effect of the kinetic energy of the water flow and the mechanical energy of the spray bar. The water flow has a strong force, and the road surface is washed more cleanly.

[0023] On the upper surface of the suction cup housing, on the outside of the two pulley motors, there is a suction port 5 connected to each of them. The suction port extends downward into the interior of the suction cup housing and is used to suck up sewage and garbage from the ground.

[0024] All systems utilize precision servo motor control, offering fast response, high accuracy, and high controllability. The servo motors can be configured to control the smooth start and stop of the suction cup movement, effectively protecting the lifespan of structural components and ensuring stable vehicle handling—features difficult to achieve with hydraulic drives. Hydraulic control, due to hysteresis, can cause a slight impact or fluctuation as the cylinder initially moves, requiring work to overcome static friction. Compared to hydraulic systems, this approach is more compact, offers better controllability, and has fewer actuators, effectively saving space and reducing overall vehicle weight, thus decreasing the energy consumption of the pure electric deep cleaning vehicle. The servo motor unit drives the rotating nozzles via pulleys to rotate at high speeds of thousands of revolutions per minute, repeatedly rinsing the road surface within a unit area for a more thorough cleaning.

[0025] The present invention also discloses a cleaning vehicle having a washing suction cup as described above.

[0026] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the concept and technical solution of the present invention, or the direct application of the concept and technical solution of the present invention to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A left-right translational suction cup with an actively rotating nozzle, characterized in that, The system includes a suction cup housing (1) with an open bottom. A rack (2) is provided on the upper surface of the suction cup housing. The rack is driven by a gear, which is connected to a gear motor (3) that drives it to rotate. The gear motor is connected to the vehicle body. The gear motor (3) drives the gear to rotate. Under the transmission of the gear, the rack (2) drives the suction cup to move left and right. The left and right translation of the suction cup can slide along the vehicle body to the outside of the vehicle body to effectively clean the curb stones. At least one spray bar (9) with a horizontally arranged axis is rotatably connected inside the suction cup housing. A water spray head (10) is installed at each end of the spray bar. Each water spray head is inclined at a set angle to the ground. A suction port (5) for sucking up sewage and garbage is provided at the top of the suction cup. The spray bar (9) consists of three pieces, which are arranged in a straight line along the horizontal plane. Each spray bar is connected to a passive pulley, and an active pulley is set between two adjacent spray bars. The active pulley and the passive pulley are connected by a belt. Each active pulley is connected to a pulley motor (7), which is installed outside the washing suction cup housing. Four belts are installed here. The first belt connects the leftmost first driven pulley to the leftmost first driving pulley. The second belt connects the first driven pulley to the middle second driven pulley. The third belt connects the second driven pulley to the rightmost third driven pulley. The fourth belt connects the second driving pulley to the third driven pulley. This connection method allows both pulley motors to start simultaneously, or if one pulley motor fails, the other pulley motor can continue to drive all three sets of spray heads simultaneously. The spray directions of the nozzles at both ends of each spray bar are set opposite to each other; There are two suction ports (5), which are symmetrically arranged on the left and right sides of the upper surface of the suction cup housing. The suction ports (5) are located on the outside of the spray head. The rotation direction of the spray bar (9) is the direction of the reaction force against the high-pressure water flow on the spray bar, which is equivalent to the work effect of the water kinetic energy plus the mechanical energy of the spray bar.

2. The left-right translational suction cup with actively rotating nozzle according to claim 1, characterized in that, The outer surface of the suction cup housing is provided with a guide shaft (4), and a slider is slidably connected to the guide shaft. The slider is connected to the vehicle body.

3. A cleaning vehicle, characterized in that, The cleaning vehicle includes the washing suction cup as described in claim 1 or 2.

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