Sanitation cleaning vehicle capable of realizing deep cleaning

Abstract

The invention discloses an environmental sanitation cleaning vehicle capable of achieving deep cleaning. The environmental sanitation cleaning vehicle comprises a cleaning device and a lifting mechanism of the cleaning device. The cleaning device comprises a supporting seat, a first mounting seat is arranged on the side portion of the supporting seat in a lifting mode, a second mounting seat is arranged on the side portion of the first mounting seat in a transverse moving mode, an extension frame is rotationally connected to the side portion of the second mounting seat through a trunnion, a protective shell is arranged on the lower side of the extension frame, and a shell cover is mounted on the top of the protective shell. Two brush barrels are symmetrically arranged on the lower side of the protective shell, the upper ends of the brush barrels are installed in the reinforcing pieces through bolts, linear grooves are formed in the positions, corresponding to the reinforcing pieces, of the lower inner wall of the protective shell, the extending frame drives the protective shell and the brush barrels to rotate integrally through a revolution mechanism arranged in the extending frame, and the problem of blind areas of one-way brushing of a traditional cleaning device is solved cooperatively. The lifting mechanism comprises a fixing frame, a connecting plate, a fixed hinge plate, a lower hinge plate, an upper hinge plate, a vertical hinge plate, an oil cylinder and a lifting fixing frame, and stable lifting of the cleaning device is achieved.

Description

Technical Field

[0001] The present invention relates to a road cleaning device, and particularly to a sanitation cleaning vehicle capable of achieving deep cleaning. Background Art

[0002] Sanitation cleaning vehicles have been commonly used equipment for urban road cleaning work, and cleaning devices are used to clean road surfaces, road guardrails, and the top surfaces of road shoulder stones, etc. During the cleaning work, sometimes the cleaning device needs to be close to the road surface or have a very small gap from it to facilitate the collection of leaves, dust, stains, etc.; and when the vehicle needs to move after the cleaning work is completed, the cleaning device needs to be far away from the ground to avoid collision with raised obstacles on the ground during transportation and resulting in damage. Therefore, a lifting mechanism is generally configured in sanitation vehicles to realize the lifting of the cleaning device for the convenience of deep cleaning.

[0003] There is a patent (CN119711391A) in the prior art that discloses a road guardrail cleaning device for sanitation vehicles, which relates to the technical field of road cleaning equipment; it includes: a support seat body; a support frame, there are multiple support frames, and the multiple support frames are arranged at intervals in the vertical direction; a support belt, the number of support belts is equal to and the positions correspond to the support frames; each support belt includes a middle part, and wing parts are respectively arranged at both ends of the middle part; a roller guiding assembly, two roller guiding assemblies are arranged on each support frame; a telescopic reset assembly, at least one telescopic reset assembly is connected to each wing part, and the telescopic reset assembly is installed on the support seat body; it can effectively improve the cleaning effect on road guardrails.

[0004] The cleaning device in the prior art cannot effectively clean the sides and tops of guardrails. In particular, the top surface of the curbstone is difficult to thoroughly clean. The existing cleaning device has poor adaptability and is difficult to adapt to guardrail structures and complex road surfaces with different heights and different spacings. The cleaning efficiency is low, and multiple round trips are required to complete a comprehensive cleaning.

[0005] Moreover, the lifting of the cleaning device in the prior art is usually directly realized by oil cylinders, air cylinders, and chains, and generally there is no buffering function. The lifting is not stable, and during the lifting process, the lifted cleaning device is prone to bumping against the ground, resulting in damage to the cleaning device or reducing its service life, and it is difficult to achieve deep cleaning. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a sanitation cleaning vehicle capable of achieving deep cleaning to overcome the above-mentioned defects of the prior art.

[0007] To solve the above technical problem, the sanitation cleaning vehicle capable of achieving deep cleaning of the present invention includes a cleaning device and its lifting mechanism; The cleaning device includes a support base. A first mounting seat is arranged on the side of the support base to be lifted by a first hydraulic rod. A second mounting seat is arranged on the side of the first mounting seat to be horizontally moved by a second hydraulic rod. An extension frame is connected to the side of the second mounting seat through a trunnion. The angle between the second mounting seat and the extension frame is adjusted by an electric push rod. A protective shell is arranged on the lower side of the extension frame. A shell cover is installed on the top of the protective shell. Two brush barrels are symmetrically arranged on the lower side of the protective shell. The upper ends of the brush barrels are installed in a reinforcement member through bolts. A linear groove is opened on the lower inner wall of the protective shell corresponding to the reinforcement member. A revolution mechanism is arranged inside the extension frame to drive the overall rotation of the protective shell and the brush barrels. A spacing adjustment mechanism is arranged between the extension frame and the protective shell to adjust the distance between the two brush barrels. A slide rail is fixedly installed inside the protective shell. Two sets of rotation mechanisms are arranged on the slide rail, which respectively drive the corresponding brush barrels to rotate. Each set of the rotation mechanisms includes a slide carriage, a third motor, a bushing, and a first straight gear. The slide carriage is installed on the surface of the slide rail. The third motor is fixedly connected to the top of the slide carriage. The output end of the third motor is fixedly connected to the first straight gear. The bushing is fixedly connected to the lower side of the slide carriage and is slidably connected in the linear groove. The upper end of the reinforcement member is rotatably connected in the bushing and is fixedly connected to a second straight gear. The first straight gear meshes with the second straight gear.

[0008] The revolution mechanism includes a first motor, a driving wheel, a synchronous belt, a first mounting shaft, and a driven wheel. The first motor is fixedly connected to the top of the extension frame. The driving wheel is rotatably connected inside the extension frame and is fixedly connected to the output end of the first motor. The first mounting shaft is rotatably connected inside the extension frame. Its lower end penetrates through the extension frame and is fixedly connected to the top of the shell cover. The driven wheel is fixedly connected to the circumferential surface of the first mounting shaft. The synchronous belt is drivingly connected between the driving wheel and the driven wheel.

[0009] The spacing adjustment mechanism includes a turntable, a second mounting shaft, a second motor, and a reinforcement plate. The turntable is fitted and rotatably connected to the bottom of the protective shell. An arc-shaped groove is opened on the turntable corresponding to the position of the reinforcement member. The two reinforcement members are respectively slidably connected in the corresponding arc-shaped grooves. The second mounting shaft is rotatably connected inside the first mounting shaft. Its lower end is fixedly connected to the turntable. The upper end of the first mounting shaft is fixedly connected to the reinforcement plate through bolts. The second motor is fixedly connected to the top of the reinforcement plate. The output end of the second motor is fixedly connected to the second mounting shaft.

[0010] The top of the support base is fixedly connected to the first hydraulic rod. The side of the support base is fixedly connected to a sliding seat. The first mounting seat is slidably connected inside the sliding seat. The extending end of the first hydraulic rod is fixedly connected to the first mounting seat.

[0011] A telescopic rod is fixedly connected between the first mounting seat and the second mounting seat. A second hydraulic rod is fixedly connected to one side of the first mounting seat close to the support seat, and the extending end of the second hydraulic rod is fixedly connected to the second mounting seat. An electric push rod is installed between the top of the second mounting seat and the extension frame, and at least two electric push rods are provided. A distance sensor is installed at the bottom of the protective shell.

[0012] A water pipe is installed on the side of the support seat and the extension frame, and a nozzle is installed at the end of the water pipe.

[0013] The lifting mechanism includes a fixed frame, a connecting plate, a fixed hinge plate, a lower hinge plate, an upper hinge plate, a vertical hinge plate, an oil cylinder and a lifting fixed frame. The fixed frame is fixedly connected to the connecting plate and is fixedly connected to the chassis frame of the sanitation vehicle through the connecting plate. The fixed hinge plate is fixed to the lower part of the fixed frame. One end of the oil cylinder is hinged to the upper part of the fixed frame, and the other end is hinged between the two ends of the lower hinge plate. One end of the lower hinge plate is hinged to the lower part of the fixed hinge plate, and the other end is hinged to the lower part of the vertical hinge plate. One end of the upper hinge plate is hinged to the upper part of the fixed hinge plate, and the other end is hinged to the upper part of the vertical hinge plate. The lifting fixed frame is fixed to the vertical hinge plate and is used to fix the cleaning device. The hinge points between the fixed hinge plate, the upper hinge plate, the lower hinge plate and the vertical hinge plate are connected to form a parallelogram.

[0014] A buffer device is further included. One end of the buffer device is hinged to the lower part of the fixed frame, and the other end is hinged between the two ends of the upper hinge plate. The buffer device includes a cylinder body, a spring, a sealing ring and a piston rod. The spring is sleeved on the piston rod, and both ends of the spring are in contact connection with the cylinder body and the end of the piston rod respectively. The inner ring of the sealing ring is in contact connection with the piston rod, and the outer ring is in contact connection with the cylinder body. An exhaust valve is provided at one end of the cylinder body away from the piston rod.

[0015] A limit block is further included. The limit block is fixed to the lower end of the fixed frame and above the cleaning device. The bottom of the limit block is made of non-metallic material.

[0016] An anti-loosening device is further included. One end of the anti-loosening device is hinged to the upper part of the fixed frame, and the other end is hinged between the two ends of the upper hinge plate. The anti-loosening device is a spring or a cylinder.

[0017] The technical effects and advantages of the present invention: 1. The cleaning device of the present invention is provided with a revolution mechanism, a spacing adjustment mechanism and a rotation mechanism. Beneficially, under the combined action of the revolution mechanism, the spacing adjustment mechanism and the rotation mechanism, three-dimensional coordination of global coverage movement + lateral spacing adaptation + local fine brushing can be achieved, solving the blind area problem of single-direction brushing of traditional cleaning devices. It can clean the entire circumference and top of the side of the guardrail, eliminate the cleaning blind areas of narrow-spacing guardrail gaps or the edges of wide road shoulders, deeply clean the depressions that are difficult to reach by the revolution movement, achieve dead-free cleaning with more comprehensive coverage, and realize deep cleaning.

[0018] 2. The cleaning device of the present invention is provided with a displacement mechanism composed of an electric push rod, a first hydraulic rod and a second hydraulic rod. Beneficially, it is conducive to realizing the precise positioning and attitude adjustment of the cleaning component in space, achieving full-dimensional cleaning of the three-dimensional surface of the guardrail and the road shoulder stone, avoiding the cleaning blind areas of the traditional method, solving the limitations of the traditional cleaning device in height, distance and angle adjustment, and significantly improving the efficiency, flexibility and intelligent level of sanitation operations.

[0019] 3. The cleaning device of the present invention is provided with a cleaning component of a mechanical structure. Beneficially, it does not require a complex electric control or hydraulic system, and only realizes adjustment through mechanical cooperation, avoiding the failure risk of electronic components in humid and dusty environments, and is suitable for the harsh working conditions of sanitation operations.

[0020] 4. For the lifting mechanism of the present invention, the fixed frame is connected to the vehicle chassis girder through a connecting plate. The fixed frame is connected to the lifting fixed frame through a fixed hinge plate, upper and lower hinge plates and a vertical connecting plate. The lifting fixed frame is connected to the cleaning equipment. The oil cylinder is connected between the fixed frame and the lower hinge plate. The hinge points between the fixed hinge plate, upper hinge plate, lower hinge plate and vertical hinge plate are connected into a parallelogram. The up-and-down movement of the oil cylinder transfers the movement to the lifting fixed frame through the upper and lower hinge plates and the vertical hinge plate, thus realizing the stable lifting of the cleaning device and smoothly realizing deep cleaning.

[0021] 5. For the lifting mechanism of the present invention, since the spring in the buffer device is compressed during the descending process, the descending speed is reduced under the reaction of the spring, realizing the function of buffering the descent of the equipment. Due to the provision of a limit block, the limit block is fixed at the lower end of the fixed frame and above the cleaning device, and the cleaning device can be stopped from moving when it rises to the upper limit position. A loosening prevention device is also provided. One end of the loosening prevention device is hinged to the upper part of the fixed frame, and the other end is hinged between the two ends of the upper hinge plate, which can make the entire lifting mechanism not easy to shake during the repeated working process and play a role in preventing loosening. Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of the cleaning device of the present invention; Figure 2 is the bottom view structural schematic diagram of the cleaning device of the present invention; Figure 3 Overall sectional view structure diagram of the cleaning device of the present invention; Figure 4 of the present invention Figure 3 Enlarged schematic view at position A; Figure 5 Schematic diagram of the revolution mechanism of the cleaning device of the present invention; Figure 6 Schematic diagram of the position structure of the first mounting shaft of the cleaning device of the present invention; Figure 7 Schematic diagram of the position structure of the second mounting shaft of the cleaning device of the present invention; Figure 8 Schematic diagram of the internal structure of the protective shell of the cleaning device of the present invention; Figure 9 Schematic diagram of the rotation mechanism of the cleaning device of the present invention and its exploded structure; Figure 10 Schematic diagram of the structure of the lifting mechanism of the present invention; Figure 11 Schematic diagram of the buffer device structure of the lifting mechanism of the present invention. Detailed implementation manners

[0023] The present invention will be described in detail below in conjunction with the drawings and specific implementation manners: The sanitation cleaning vehicle capable of achieving deep cleaning provided by the present invention includes a cleaning device and its lifting mechanism.

[0024] Referring to Figures 1 - 9 , the cleaning device includes a support base 1. A first mounting base 2 is arranged on the side of the support base 1 in a lifting manner through a first hydraulic rod 601. A second mounting base 3 is arranged on the side of the first mounting base 2 in a lateral movement manner through a second hydraulic rod 603. The side of the second mounting base 3 is connected to an extension frame 4 through a trunnion. The angle between the second mounting base 3 and the extension frame 4 is adjusted through an electric push rod 6. A protective shell 5 is arranged on the lower side of the extension frame 4. A shell cover 501 is installed on the top of the protective shell 5. Two brush barrels 7 are symmetrically arranged on the lower side of the protective shell 5. The upper end of the brush barrel 7 is installed in a reinforcement member 701 through a bolt. A linear groove 502 is opened on the lower inner wall of the protective shell 5 corresponding to the reinforcement member 701. A revolution mechanism 8 is arranged inside the extension frame 4 to drive the overall rotation of the protective shell 5 and the brush barrels 7. A distance adjustment mechanism 9 is arranged between the extension frame 4 and the protective shell 5 to adjust the distance between the two brush barrels 7. A slide rail 11 is fixedly installed inside the protective shell 5. Two groups of rotation mechanisms 10 are arranged on the slide rail 11, which respectively drive the corresponding brush barrels 7 to rotate.

[0025] The side of the support base 1 is provided with a first mounting base 2 through the lifting of the first hydraulic rod 601. The side of the first mounting base 2 is provided with a second mounting base 3 through the lateral movement of the second hydraulic rod 603. The side of the second mounting base 3 is connected to the extension frame 4 through a trunnion. The angle between the second mounting base 3 and the extension frame 4 is adjusted by an electric push rod 6. A protective shell 5 is arranged on the lower side of the extension frame 4. A cover 501 is installed on the top of the protective shell 5. Two brush barrels 7 are symmetrically arranged on the lower side of the protective shell 5. The upper end of the brush barrel 7 is installed in the reinforcement member 701 through a bolt. A linear groove 502 is formed in the lower inner wall of the protective shell 5 corresponding to the reinforcement member 701. A revolution mechanism 8 is arranged inside the extension frame 4 to drive the overall rotation of the protective shell 5 and the brush barrels 7. A spacing adjustment mechanism 9 is arranged between the extension frame 4 and the protective shell 5 to adjust the distance between the two brush barrels 7. A slide rail 11 is fixedly installed inside the protective shell 5. Two sets of rotation mechanisms 10 are arranged on the slide rail 11, which respectively drive the corresponding brush barrels 7 to rotate.

[0026] In this embodiment, it should be specifically noted that: the support base 1 is the basic structure of this device and is fixed on the sanitation cleaning vehicle through a lifting mechanism. The first hydraulic rod 601 is used to drive the up and down movement of the first mounting base 2. The second hydraulic rod 603 is used to drive the lateral movement of the second mounting base 3. The electric push rod 6 is used to adjust the angle of the extension frame 4 relative to the second mounting base 3. The electric push rod 6, the first hydraulic rod 601 and the second hydraulic rod 603 together constitute a displacement mechanism, which can adjust the position of the brush barrel 7 according to the position to be cleaned. The brush barrel 7 and the water pipe 13 constitute a cleaning component. Through the cooperation of multi-dimensional movements, the precise positioning and attitude adjustment of the cleaning component in space are realized, and the three-dimensional surface of the guardrail and the road shoulder stone are cleaned in all dimensions, avoiding the cleaning blind area of the traditional method, solving the limitations of the traditional cleaning device in height, distance and angle adjustment, significantly improving the efficiency, flexibility and intelligent level of sanitation operations, especially suitable for the cleaning needs of guardrails and road shoulders in the complex environment of urban roads. The upper end of the brush barrel 7 is inserted into the lower end of the reinforcement member 701, and then the brush barrel 7 and the reinforcement member 701 are fixed through bolts. The reinforcement member 701 passes through the turntable 901 and extends into the extension frame 4. The revolution mechanism 8 is used to control the overall rotation of the protective shell 5 and the brush barrels 7. The rotation mechanism 10 is used to drive the brush barrel 7 to rotate. The spacing adjustment mechanism 9 is used to dynamically adjust the lateral spacing between the two brush barrels 7 so that it can adapt to the guardrail structures of different widths, the sizes of road shoulder stones or the cleaning scene requirements.

[0027] The main difference between the present embodiment and the prior art is that the present embodiment adopts a revolution mechanism 8, a spacing adjustment mechanism 9 and a rotation mechanism 10 to realize a composite motion, specifically: the revolution mechanism 8 is used to control the overall rotation of the two brush cylinders 7. When the first motor 801 rotates, the synchronous belt transmission drives the first installation shaft 804 to rotate, thereby driving the protective shell 5 and the internal brush cylinder 7 to make a circular motion around the axis of the extension frame 4, providing a first cleaning method. The revolution motion of the brush cylinder 7 can cover the entire circumference and top of the side of the guardrail, avoiding the missed areas of the traditional fixed-angle cleaning, and is particularly suitable for the surrounding cleaning of cylindrical or special-shaped guardrails; the rotation mechanism 10 is used to control the two brush cylinders 7 to rotate independently, and the first spur gear 1003 is driven to rotate by the third motor 1002. Under the meshing action of the second spur gear 1005, the reinforcing member 701 and the brush cylinder 7 are finally driven to rotate. Through the precise transmission design, the brush cylinder 7 produces a self-rotation motion, and the stains on the surface of the guardrail, the curb stone and other cleaning objects are stripped and scrubbed. The friction between the bristles and the cleaning surface can remove dust, oil, dirt and other attachments, and the lateral spacing between the two brush barrels 7 can be dynamically adjusted through the spacing adjustment mechanism 9. When the traditional fixed-spacing brush device is used to clean narrow guardrails, the brushes on both sides are easy to exceed the width of the guardrail, resulting in idling and wasting energy. The spacing adjustment mechanism 9 can shrink the spacing in real time so that the brushes only work in the effective area, thereby improving the cleaning efficiency. Under the combined action of the revolution mechanism 8, the spacing adjustment mechanism 9 and the rotation mechanism 10, the three-dimensional coordination of global coverage movement + lateral spacing adaptation + local fine brushing can be achieved, solving the blind spot problem of unidirectional brushing of traditional cleaning devices, and can clean the entire circumference and top of the side of the guardrail, eliminating the cleaning blind spots of the gap between narrow-spacing guardrails or the edge of wide-width shoulder stones, and deeply cleaning the depressions that are difficult to reach during the revolution movement, so as to provide more comprehensive cleaning without dead angles. The revolution mechanism 8, the spacing adjustment mechanism 9 and the rotation mechanism 10 are all modularly designed, and the worn parts can be replaced independently. The maintenance cost is lower than that of the traditional integrated structure, and the scope of use is wider.

[0028] The above structure is the main structure of this embodiment, which solves the problems of incomplete cleaning of the guardrail and poor adaptability. The brush cylinder 7 is an existing structure. The specific structure and connection method of how the brush cylinder 7 is connected to the reinforcement 701 are not described in detail in this embodiment. In addition, the first hydraulic rod 601, the second hydraulic rod 603, the electric push rod 6, the first motor 801, etc. also belong to the existing technology. Therefore, this application does not make detailed limitations.

[0029] Reference Figures 3 - 6, the revolution mechanism 8 includes a first motor 801, a driving wheel 802, a synchronous belt 803, a first mounting shaft 804 and a driven wheel 805. The first motor 801 is fixedly connected to the top of the extension frame 4. The driving wheel 802 is rotatably connected inside the extension frame 4 and fixedly connected to the output end of the first motor 801. The first mounting shaft 804 is rotatably connected inside the extension frame 4, and its lower end penetrates through the extension frame 4 and is fixedly connected to the top of the housing cover 501. The driven wheel 805 is fixedly connected to the circumferential surface of the first mounting shaft 804. The synchronous belt 803 is drivingly connected between the driving wheel 802 and the driven wheel 805.

[0030] In this embodiment, it should be specifically noted that: during operation, the first motor 801 drives the driving wheel 802 to rotate, and the output shaft drives the driving wheel 802 to rotate. The power is transmitted to the driven wheel 805 through the synchronous belt 803, driving the first mounting shaft 804 to rotate, and then driving the protective shell 5 and the brush cylinder 7 to rotate around the first mounting shaft 804. The first motor 801 controls the revolution direction through forward and reverse rotation to adapt to different cleaning path requirements, such as surrounding the guardrail from left to right or from right to left. The centrifugal force generated when the brush cylinder 7 revolves causes the outer bristles to expand outwards, enhancing the fitting degree to the curved surface of the guardrail, especially suitable for the surrounding cleaning of cylindrical guardrails. The first motor 801 can be connected to a frequency converter, and the rotation speed can be adjusted in real time through the vehicle-mounted PLC or remote terminal. Low-speed rotation is suitable for cleaning curved guardrails or narrow spaces to ensure that the brush fully fits the curved surface and avoid collisions. High-speed rotation is suitable for large-area flat cleaning to improve the coverage efficiency.

[0031] Refer to Figures 4 - 7 , the spacing adjustment mechanism 9 includes a turntable 901, a second mounting shaft 903, a second motor 904 and a reinforcement plate 905. The turntable 901 is fitted and rotatably connected to the bottom of the protective shell 5. The turntable 901 is provided with an arc-shaped groove 902 corresponding to the position of the reinforcement member 701. The two reinforcement members 701 are respectively slidably connected in the corresponding arc-shaped grooves 902. The second mounting shaft 903 is rotatably connected inside the first mounting shaft 804, and its lower end is fixedly connected to the turntable 901. The upper end of the first mounting shaft 804 is fixedly connected to the reinforcement plate 905 by bolts. The second motor 904 is fixedly connected to the top of the reinforcement plate 905, and the output end of the second motor 904 is fixedly connected to the second mounting shaft 903.

[0032] In this embodiment, it should be specifically noted that: The second motor 904 is fixed to the first mounting shaft 804 through the reinforcement plate 905, which will not affect the overall rotation of the protective shell 5. During operation, the output end of the second motor 904 drives the second mounting shaft 903 to rotate, and the second mounting shaft 903 drives the turntable 901 to rotate. The reinforcement member 701 moves under the restriction of the arc-shaped groove 902. The output end of the second motor 904 can rotate forward and backward. As the turntable 901 rotates, the distance between the two reinforcement members 701 gradually approaches or moves away, thereby adjusting the distance between the two brush cylinders 7. A limiting block is provided on the surface of the reinforcement member 701 to prevent the reinforcement member 701 from sliding excessively or deviating in angle. The lateral distance between the two brush cylinders 7 is dynamically adjusted through mechanical transmission to adapt to cleaning objects such as guardrails and road shoulder stones of different widths. When cleaning a guardrail with a narrow spacing, by shrinking the spacing between the two brush cylinders 7, the two brush cylinders 7 can penetrate into the gap between the guardrail columns, avoiding the idling waste of traditional brushes with a fixed spacing and improving the cleaning efficiency. When cleaning a road shoulder stone, the spacing between the two brush cylinders 7 is enlarged to cover the entire width of the road shoulder stone at one time, and in cooperation with the vertical angle of the extension frame 4, dead-angle-free brushing of the top surface is achieved. When cleaning a special-shaped structure, by dynamically fine-tuning the spacing, the brush cylinder 7 is fitted to the complex contour, eliminating the cleaning blind area and greatly improving the cleaning effect; there is no need for a complex electric control or hydraulic system, and the adjustment is only achieved through mechanical cooperation, avoiding the failure risk of electronic components in a humid and dusty environment, suitable for the harsh working conditions of sanitation operations, and can be linked with vehicle-mounted sensors, such as pre-scanning the guardrail spacing with a lidar, which is prior art and will not be elaborated too much, reducing manual intervention; through the simplicity of mechanical transmission and the flexibility of dynamic adaptation, the core pain points of the traditional cleaning device of "fixed spacing and single scenario" are solved. Its technical essence is to change from "passive adaptation" to "active adjustment", enabling the cleaning components to automatically optimize the layout according to the real-time detected environmental parameters, and finally realizing the efficient operation mode of "one device, multiple scenarios".

[0033] Refer to Figure 1 , the top of the support base 1 is fixedly connected to the first hydraulic rod 601, the side of the support base 1 is fixedly connected to the sliding seat 602, the first mounting seat 2 is slidably connected within the sliding seat 602, and the extending end of the first hydraulic rod 601 is fixedly connected to the first mounting seat 2.

[0034] In this embodiment, it should be specifically noted that: The extending end of the first hydraulic rod 601 drives the first mounting seat 2 to rise and fall, the first mounting seat 2 drives the second mounting seat 3 to rise and fall, and finally drives the second mounting seat 3, the extension frame 4, the protective shell 5 and the brush cylinder 7 to rise and fall as a whole, realizing the height adjustment in the vertical direction to adapt to guardrails, road shoulder stones or road slopes of different heights.

[0035] Refer to Figure 2, a telescopic rod 604 is fixedly connected between the first mounting seat 2 and the second mounting seat 3. On one side of the first mounting seat 2 close to the support seat 1, a second hydraulic rod 603 is fixedly connected, and the extending end of the second hydraulic rod 603 is fixedly connected to the second mounting seat 3.

[0036] In this embodiment, it should be specifically noted that: both ends of the telescopic rod 604 are respectively fixed to the first mounting seat 2 and the second mounting seat 3, and it is located at the four corners between the two, forming a rigid connection to offset the lateral force generated when the second hydraulic rod 603 drives laterally, preventing the second mounting seat 3 from tilting or shaking due to uneven stress.

[0037] Refer to Figure 1 , an electric push rod 6 is installed between the top of the second mounting seat 3 and the extension frame 4, and at least two electric push rods 6 are provided.

[0038] In this embodiment, it should be specifically noted that: the electric push rod 6 is located between the top of the extension frame 4 and the side of the second mounting seat 3. By adjusting the electric push rod 6, the tilt angle of the extension frame 4 can be adjusted, so that the brush barrel 7 can lean forward to clean the top plane or arc surface of the guardrail, vertically downward clean the top surface of the road shoulder stone, the vertical facade such as the side wall of the tunnel, and lean backward to adapt to the tilt angle of the guardrail when the vehicle climbs the slope, and can fit non-vertical surfaces such as the top of the guardrail and the top surface of the road shoulder stone to achieve multi-angle cleaning.

[0039] Refer to Figure 2 , a distance sensor 12 is installed at the bottom of the protective shell 5.

[0040] In this embodiment, it should be specifically noted that: the distance sensor 12 real-time monitors the distance and angle between the brush barrel 7 and cleaning objects such as the guardrail and the road shoulder stone, provides feedback data, and realizes the automation and precision of the cleaning process.

[0041] Refer to Figure 1 , a water pipe 13 is installed on the side of the support seat 1 and the extension frame 4, and a nozzle is installed at the end of the water pipe 13.

[0042] In this embodiment, it should be specifically noted that: the water pipe 13 sprays water flow to the cleaning area through the nozzle at the end. The nozzle can be designed as a nozzle with a rotatable angle, which is linked with the brushing action of the brush barrel 7 to realize the integrated operation of "brushing + flushing", improving the cleaning effect and efficiency.

[0043] The working principle of the cleaning device of the present invention: The main problem solved by this embodiment is: by combining the revolution mechanism 8, the spacing adjustment mechanism 9 and the rotation mechanism 10 to realize compound motion, solving the blind area problem of the single-direction brushing of traditional cleaning devices, and can clean the entire circumference and top of the guardrail side, eliminating the cleaning blind area of the narrow-spacing guardrail gap or the edge of the wide-width road shoulder stone.

[0044] The specific steps are as follows: S1. Preparation before operation: Check whether the machine is firmly installed and whether the power equipment is in normal use. Set the initial value of the distance between the two brush cylinders 7 according to the type of municipal guardrail. S2. Sprinkler system: Connect the water pipe 13 to the vehicle-mounted water tank, open the valve of the water pipe 13, test the spraying direction and water pressure of the nozzle. If the foam or disinfection function is required, connect to the corresponding storage tank and debug the proportioning pump. S3. Vehicle driving and positioning: When the sanitation vehicle slowly approaches the guardrail, pre-scan the height and distance of the guardrail ahead through the vehicle-mounted camera or lidar. According to the pre-scanned data, the system automatically adjusts the first hydraulic rod 601, the second hydraulic rod 603 and the electric push rod 6 to align the brush cylinder 7 with the target area. S4. Execution of cleaning operation: S401. Cleaning of the side and top of the guardrail: Drive the first spur gear 1003 to rotate through the third motor 1002. Under the meshing action of the second spur gear 1005, finally drive the reinforcement 701 and the brush cylinder 7 to rotate. Through precise transmission design, the brush cylinder 7 generates a self-rotation motion to complete the stripping and brushing of the stains on the cleaning objects such as the surface of the guardrail and the road shoulder stone, and open the nozzle of the water pipe 13. The water flow is directed at the rotating area of the brush cylinder 7 to synchronously wash the stripped stains. At the same time, the distance sensor 12 continuously monitors the distance and automatically commands the second hydraulic rod 603 to finely adjust the lateral distance to prevent collision. When encountering an arc-shaped guardrail, the electric push rod 6 automatically adjusts the angle of the extension frame to ensure that the brush cylinder 7 always fits the curved surface. S402. Cleaning of the top surface of the road shoulder stone: Tilt the extension frame 4 backward by 90° through the electric push rod 6 to make the brush cylinder 7 vertically downward and align with the road shoulder stone. The second hydraulic rod 603 extends greatly to make the brush cylinder 7 close to the edge of the road shoulder stone. Then when the first motor 801 rotates, the synchronous belt drive drives the first mounting shaft 804 to rotate, and then drives the protective shell 5 and the internal brush cylinder 7 to make a circular motion around the axis of the extension frame 4 to achieve full coverage brushing of the top surface. The water pipe 13 sprays atomized water flow to suppress dust and wash away the remaining stains. S403. Spacing adjustment: When the distance between the brush cylinders 7 needs to be adjusted, drive the second mounting shaft 903 to rotate through the output end of the second motor 904. The second mounting shaft 903 drives the turntable 901 to rotate. The reinforcement 701 moves under the restriction of the arc-shaped groove 902, and the distance between the two reinforcements 701 gradually approaches or moves away, thereby adjusting the distance between the two brush cylinders 7.

[0045] In order for the entire cleaning device to be able to lift smoothly and be more conducive to achieving deep cleaning, the present invention also provides a lifting mechanism for the cleaning device.

[0046] As Figure 10As shown in the figure, the lifting structure includes a fixed frame 220, a connecting plate 216, a fixed hinge plate 210, a lower hinge plate 211, an upper hinge plate 215, a vertical hinge plate 213, an oil cylinder 219, and a lifting fixed frame 212. The fixed frame 220 is fixedly connected to the connecting plate 216 and is fixedly connected to the chassis frame of the sanitation vehicle through the connecting plate. The fixed hinge plate 210 is fixed to the lower part of the fixed frame. One end of the oil cylinder 219 is hinged to the upper part of the fixed frame, and the other end is hinged between the two ends of the lower hinge plate 211. One end of the lower hinge plate 211 is hinged to the lower part of the fixed hinge plate 210, and the other end is hinged to the lower part of the vertical hinge plate 213. One end of the upper hinge plate 215 is hinged to the upper part of the fixed hinge plate 210, and the other end is hinged to the upper part of the vertical hinge plate 213. The lifting fixed frame 212 is fixed to the vertical hinge plate 213, and the lifting fixed frame is used to fix the cleaning device: the lifting fixed frame 212 is fixedly connected to the support seat 1 of the cleaning device by bolts. The hinge points between the fixed hinge plate, the upper hinge plate, the lower hinge plate, and the vertical hinge plate are connected to form a parallelogram.

[0047] The ascending and descending movements of the oil cylinder are transmitted to the lifting fixed frame through the upper and lower hinge plates and the vertical hinge plate, so as to realize the ascending and descending movements of the entire cleaning device.

[0048] In order to realize the slow lifting and lowering of the cleaning device, a buffer device 218 is further included. One end of the buffer device is hinged to the lower part of the fixed frame 220, and the other end is hinged between the two ends of the upper hinge plate 215.

[0049] As Figure 11 shown, the buffer device includes a cylinder body 2181, a spring 2182, a sealing ring 2184, and a piston rod 2185. The spring is sleeved on the piston rod, and both ends of the spring are in contact connection with the cylinder body and the end of the piston rod respectively. The inner ring of the sealing ring is in contact connection with the piston rod, and the outer ring is in contact connection with the cylinder body. An exhaust valve 2183 is provided at one end of the cylinder body away from the piston rod. Its function is to prevent the existence of huge gas pressure after compressed gas, which may cause the equipment to not reach the proper position during rising, and also prevent the damage of the sealing ring caused by the impact during the compression process.

[0050] In order to limit the upper limit position of the rising of the cleaning device, a limit block 217 is further included. The limit block is fixed to the lower end of the fixed frame 220 and above the cleaning device. The bottom of the limit block is made of non-metallic material.

[0051] In order to make the entire lifting mechanism not easy to shake and prevent loosening during repeated work, a loosening prevention device 214 is further included. One end of the loosening prevention device is hinged to the upper part of the fixed frame 220, and the other end is hinged between the two ends of the upper hinge plate 215. The loosening prevention device is preferably a spring or a cylinder.

Claims

1. A sanitation cleaning vehicle capable of achieving deep cleaning, characterized in that: Comprising a cleaning device and its lifting mechanism; The cleaning device includes a support base (1). A first mounting base (2) is arranged on the side of the support base (1) in a lifting manner through a first hydraulic rod (601). A second mounting base (3) is arranged on the side of the first mounting base (2) in a lateral movement manner through a second hydraulic rod (603). An extension frame (4) is connected to the side of the second mounting base (3) through a trunnion. The angle between the second mounting base (3) and the extension frame (4) is adjusted by an electric push rod (6). A protective shell (5) is arranged on the lower side of the extension frame (4). A shell cover (501) is installed on the top of the protective shell (5). Two brush barrels (7) are symmetrically arranged on the lower side of the protective shell (5). The upper end of the brush barrel (7) is installed in a reinforcing member (701) through a bolt. A linear groove (502) is formed on the lower inner wall of the protective shell (5) corresponding to the reinforcing member (701). A revolution mechanism (8) is arranged inside the extension frame (4) to drive the overall rotation of the protective shell (5) and the brush barrels (7). A spacing adjustment mechanism (9) is arranged between the extension frame (4) and the protective shell (5) to adjust the distance between the two brush barrels (7). A slide rail (11) is fixedly installed inside the protective shell (5). Two sets of rotation mechanisms (10) are arranged on the slide rail (11), which respectively drive the corresponding brush barrels (7) to rotate; Each set of the rotation mechanisms (10) includes a slide carriage (1001), a third motor (1002), a bushing (1004), and a first spur gear (1003). The slide carriage (1001) is installed on the surface of the slide rail (11). The third motor (1002) is fixedly connected to the top of the slide carriage (1001). The output end of the third motor (1002) is fixedly connected to the first spur gear (1003). The bushing (1004) is fixedly connected to the lower side of the slide carriage (1001), and the bushing (1004) is slidably connected inside the linear groove (502). The upper end of the reinforcing member (701) is rotatably connected inside the bushing (1004) and fixedly connected to a second spur gear (1005). The first spur gear (1003) meshes with the second spur gear (1005).

2. The sanitation cleaning vehicle according to claim 1, wherein: The revolution mechanism (8) includes a first motor (801), a driving wheel (802), a synchronous belt (803), a first mounting shaft (804), and a driven wheel (805). The first motor (801) is fixedly connected to the top of the extension frame (4). The driving wheel (802) is rotatably connected inside the extension frame (4) and fixedly connected to the output end of the first motor (801). The first mounting shaft (804) is rotatably connected inside the extension frame (4), and its lower end penetrates through the extension frame (4) and is fixedly connected to the top of the shell cover (501). The driven wheel (805) is fixedly connected to the circumferential surface of the first mounting shaft (804). The synchronous belt (803) is drivingly connected between the driving wheel (802) and the driven wheel (805).

3. The sanitation cleaning vehicle according to claim 1, wherein: The spacing adjustment mechanism (9) includes a turntable (901), a second mounting shaft (903), a second motor (904), and a reinforcement plate (905). The turntable (901) is fitted and rotatably connected to the bottom of the protective housing (5). An arc-shaped groove (902) is provided at the position of the turntable (901) corresponding to the reinforcement member (701). The two reinforcement members (701) are respectively slidably connected in the corresponding arc-shaped grooves (902). The second mounting shaft (903) is rotatably connected in the first mounting shaft (804), and its lower end is fixedly connected to the turntable (901). The upper end of the first mounting shaft (804) is fixedly connected to the reinforcement plate (905) by bolts. The second motor (904) is fixedly connected to the top of the reinforcement plate (905), and the output end of the second motor (904) is fixedly connected to the second mounting shaft (903).

4. The sanitation cleaning vehicle according to claim 1, characterized in that: A first hydraulic rod (601) is fixedly connected to the top of the support base (1), and a sliding seat (602) is fixedly connected to the side of the support base (1). The first mounting seat (2) is slidably connected in the sliding seat (602), and the extending end of the first hydraulic rod (601) is fixedly connected to the first mounting seat (2).

5. The sanitation cleaning vehicle according to claim 1, characterized in that: An expansion link (604) is fixedly connected between the first mounting seat (2) and the second mounting seat (3). A second hydraulic rod (603) is fixedly connected to one side of the first mounting seat (2) close to the support base (1), and the extending end of the second hydraulic rod (603) is fixedly connected to the second mounting seat (3). An electric push rod (6) is installed between the top of the second mounting seat (3) and the extension frame (4), and at least two electric push rods (6) are provided. A distance sensor (12) is installed at the bottom of the protective housing (5).

6. The sanitation cleaning vehicle according to claim 1, characterized in that: A water pipe (13) is installed on the sides of the support base (1) and the extension frame (4), and a nozzle is installed at the end of the water pipe (13).

7. The sanitation cleaning vehicle according to claim 1, wherein: The lifting mechanism includes a fixed frame (220), a connecting plate (216), a fixed hinge plate (210), a lower hinge plate (211), an upper hinge plate (215), a vertical hinge plate (213), an oil cylinder (219), and a lifting fixed frame (212). The fixed frame (220) is fixedly connected to the connecting plate (216) and is fixedly connected to the chassis frame of the sanitation vehicle through the connecting plate. The fixed hinge plate (210) is fixed to the lower part of the fixed frame. One end of the oil cylinder (219) is hinged to the upper part of the fixed frame, and the other end is hinged between the two ends of the lower hinge plate (211). One end of the lower hinge plate (211) is hinged to the lower part of the fixed hinge plate (210), and the other end is hinged to the lower part of the vertical hinge plate (213). One end of the upper hinge plate (215) is hinged to the upper part of the fixed hinge plate (210), and the other end is hinged to the upper part of the vertical hinge plate (213). The lifting fixed frame (212) is fixed to the vertical hinge plate (213), and the lifting fixed frame is used to fix the cleaning equipment. The hinge points between the fixed hinge plate, the upper hinge plate, the lower hinge plate, and the vertical hinge plate are connected to form a parallelogram.

8. The sanitation cleaning vehicle according to claim 7, wherein: It further includes a buffer device (218), one end of the buffer device is hinged to the lower part of the fixed frame (220), and the other end is hinged between both ends of the upper hinge plate (215); the buffer device includes a cylinder body (2181), a spring (2182), a sealing ring (2184), and a piston rod (2185); the spring is sleeved on the piston rod, and both ends of the spring are in contact connection with the cylinder body and the end of the piston rod respectively; the inner ring of the sealing ring is in contact connection with the piston rod, and the outer ring is in contact connection with the cylinder body; an exhaust valve (2183) is provided at one end of the cylinder body away from the piston rod.

9. The sanitation cleaning vehicle according to claim 7, wherein: It further includes a limit block (217), the limit block is fixed to the lower end of the fixed frame (220) and above the cleaning device; the bottom of the limit block is made of a non-metallic material.

10. The sanitation cleaning vehicle according to claim 7, wherein: It further includes a loosening prevention device (214), one end of the loosening prevention device is hinged to the upper part of the fixed frame (220), and the other end is hinged between both ends of the upper hinge plate (215); the loosening prevention device is a spring or a cylinder.

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