Sanitation cleaning vehicles capable of deep cleaning

Abstract

The present invention discloses a sanitation cleaning vehicle capable of achieving deep cleaning, comprising a cleaning device and a lifting mechanism thereof. The cleaning device comprises a support seat, a first mounting seat being provided on the side of the support seat for lifting, a second mounting seat being provided on the side of the first mounting seat for transverse movement, an extension frame being connected to the side of the second mounting seat by means of an ear shaft, a protective shell being provided on the lower side of the extension frame, a shell cover being provided on the top of the protective shell, two brush cylinders being symmetrically provided on the lower side of the protective shell, the upper ends of the brush cylinders being installed in a reinforcement member by bolts, a linear groove being provided on the lower inner wall of the protective shell corresponding to the position of the reinforcement member, the extension frame driving the protective shell and the brush cylinder to rotate as a whole by means of an internal revolution mechanism, thereby collaboratively solving the blind spot problem of unidirectional brushing of traditional cleaning devices. The lifting mechanism comprises a fixed frame, a connecting plate, a fixed hinged plate, a lower hinged plate, an upper hinged plate, a vertical hinged plate, an oil cylinder and a lifting fixed frame, thereby achieving smooth lifting and lowering of the cleaning device.

Description

Technical Field

[0001] The present invention relates to road cleaning equipment, in particular to a sanitation cleaning vehicle capable of achieving deep cleaning. Background Art

[0002] Sanitation vehicles are a common tool for cleaning urban roads, employing cleaning devices to clean road surfaces, guardrails, and the top surfaces of curbstones. During cleaning operations, the cleaning device sometimes needs to be close to the road surface, or at a very low distance, to collect leaves, dust, and stains. However, when the cleaning operation is complete and the vehicle needs to be moved, the cleaning device needs to be kept clear of the ground to avoid damage from collisions with raised obstacles during transport. Therefore, sanitation vehicles are typically equipped with a lifting mechanism to raise and lower the cleaning device for deeper cleaning.

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

[0004] The existing cleaning device cannot effectively clean the sides and top of the guardrail, especially the top of the curb is difficult to clean thoroughly. The existing cleaning device has poor adaptability and is difficult to adapt to guardrail structures of different heights and different spacings and complex road surfaces. The cleaning efficiency is low and multiple round trips are required to complete comprehensive cleaning.

[0005] Moreover, the lifting of the cleaning device in the prior art is usually achieved directly by using oil cylinders, air cylinders, and chains, which generally have no buffering function, and the lifting is unstable. During the lifting process, the lifting cleaning device is likely to collide with the ground, thereby causing damage to the cleaning device or reducing its service life, making it 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, so as to overcome the defects of the above-mentioned prior art.

[0007] In order to solve the above technical problems, the sanitation cleaning vehicle capable of achieving deep cleaning of the present invention comprises a cleaning device and a lifting mechanism thereof;

[0008] The cleaning device includes a support base, a side of the support base is provided with a first mounting base by a first hydraulic rod, a side of the first mounting base is laterally moved by a second hydraulic rod to provide a second mounting base, the side of the second mounting base is connected to the extension frame through an ear shaft, the angle between the second mounting frame and the extension frame is adjusted by an electric push rod, a protective shell is provided on the lower side of the extension frame, a shell cover is installed on the top of the protective shell, two brush cylinders are symmetrically provided on the lower side of the protective shell, the upper end of the brush cylinder is installed in the reinforcement by bolts, and a linear groove is provided on the lower inner wall of the protective shell corresponding to the reinforcement, a revolution mechanism is provided inside the extension frame to drive the protective shell and the brush cylinder to rotate as a whole, a spacing adjustment mechanism is provided between the extension frame and the protective shell to adjust the distance between the two brush cylinders, a slide rail is fixedly installed in the protective shell, and two sets of rotation mechanisms are provided on the slide rail, which respectively drive the corresponding brush cylinders to rotate;

[0009] Each set of the rotation mechanism includes a slide, a third motor, a sleeve and a first spur gear. The slide is installed on the surface of the slide rail, the third motor is fixedly connected to the top of the slide, the output end of the third motor is fixed to the first spur gear, the sleeve is fixedly connected to the lower side of the slide, and the sleeve is slidably connected to the linear groove, the upper end of the reinforcement is rotatably connected to the sleeve and fixedly connected to the second spur gear, and the first spur gear is meshed with the second spur gear.

[0010] 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 in the extension frame and fixedly connected to the output end of the first motor, the first mounting shaft is rotatably connected in the extension frame, and its lower end passes 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, and the synchronous belt transmission is connected between the driving wheel and the driven wheel.

[0011] The spacing adjustment mechanism includes a turntable, a second mounting shaft, a second motor and a reinforcement plate. The turntable is engaged and rotatably connected to the bottom of the protective shell. An arc groove is provided at the position of the turntable corresponding to the reinforcement member. The two reinforcement members are slidably connected in the corresponding arc grooves respectively. The second mounting shaft is rotatably connected in the first mounting shaft, and its lower end is fixedly connected to the turntable. The upper end of the first mounting shaft is fixedly connected to the reinforcement plate by bolts. The second motor is fixedly connected to the top of the reinforcement plate, and the output end of the second motor is fixedly connected to the second mounting shaft.

[0012] The top of the support seat is fixedly connected to the first hydraulic rod, the side of the support seat is fixedly connected to the slide, the first mounting seat is slidably connected in the slide, and the extended end of the first hydraulic rod is fixedly connected to the first mounting seat.

[0013] A telescopic rod is fixedly connected between the first mounting seat and the second mounting seat, a second hydraulic rod is fixedly connected to the side of the first mounting seat close to the support seat, and an extended end of the second hydraulic rod is fixedly connected to the second mounting seat; an electric push rod is installed between the second mounting seat and the top of the extension frame, and at least two electric push rods are provided; a distance sensor is installed at the bottom of the protective shell.

[0014] Water pipes are installed on the sides of the support seat and the extension frame, and spray heads are installed at the ends of the water pipes.

[0015] 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 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.

[0016] It also includes a buffer device, one end of which is hinged to the lower part of the fixed frame, and the other end is hinged between the two ends of the upper hinged 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 the two ends of the spring are respectively in contact with the cylinder body and the end of the piston rod; the inner ring of the sealing ring is in contact with the piston rod, and the outer ring is in contact with the cylinder body; an exhaust valve is provided at the end of the cylinder body away from the piston rod.

[0017] It also includes a limiting block, which is fixed to the lower end of the fixing frame and above the cleaning device; the bottom of the limiting block is made of non-metallic material.

[0018] It also includes an anti-loosening device, one end of which is hinged to the upper part of the fixing frame, and the other end is hinged between the two ends of the upper hinged plate; the anti-loosening device is a spring or a cylinder.

[0019] Technical effects and advantages of the present invention:

[0020] 1. The cleaning device of this invention, equipped with a revolution mechanism, a spacing adjustment mechanism, and a rotation mechanism, facilitates the three-dimensional synergy of global coverage, lateral spacing adaptation, and localized fine scrubbing through the combined action of the revolution mechanism, spacing adjustment mechanism, and rotation mechanism. This addresses the blind spot problem of conventional cleaning devices with one-way scrubbing, allowing cleaning of the entire circumference and top of the guardrail, eliminating blind spots between narrow-spaced guardrails or along the edges of wide curbstones. It also allows for deep cleaning of recessed areas difficult to reach with revolution, providing comprehensive coverage without blind spots and achieving deep cleaning.

[0021] 2. The cleaning device of this invention utilizes a displacement mechanism composed of an electric push rod, a first hydraulic rod, and a second hydraulic rod. This facilitates precise spatial positioning and posture adjustment of the cleaning component, enabling full-dimensional cleaning of guardrail surfaces and curbs, eliminating blind spots associated with traditional cleaning methods. This addresses the limitations of traditional cleaning devices in height, distance, and angle adjustment, significantly improving the efficiency, flexibility, and intelligence of sanitation operations.

[0022] 3. The cleaning device of the present invention, with its mechanical cleaning components, eliminates the need for complex electronic controls or hydraulic systems, achieving adjustments solely through mechanical coordination. This avoids the risk of electronic component failure in humid and dusty environments, making it suitable for the harsh working conditions of sanitation operations.

[0023] 4. The lifting mechanism of the present invention is that the fixed frame is connected to the vehicle chassis beam through a connecting plate, the fixed frame is connected to the lifting fixed frame through the fixed hinge plate, the upper and lower hinge plates and the vertical connecting plate, and the lifting fixed frame is connected to the cleaning equipment, the cylinder is connected to the fixed frame and the lower hinge plate, 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, and the rising and falling movement of the cylinder is transmitted to the lifting fixed frame through the upper and lower hinge plates and the vertical hinge plate, thereby realizing the smooth lifting and lowering of the cleaning device, thereby smoothly achieving deep cleaning.

[0024] 5. The lifting mechanism of the present invention utilizes a spring in the buffer device that is compressed during descent, reducing the descent speed under the reaction of the spring, thereby providing a buffer for the equipment's descent. A stop block, secured to the lower end of the mounting bracket and above the cleaning device, allows the cleaning device to stop when it reaches its upper limit. A locking device is also provided, one end hinged to the upper portion of the mounting bracket and the other end hinged between the ends of the upper hinge plate. This prevents the entire lifting mechanism from shaking during repeated operation, thus preventing loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the overall structure of the cleaning device of the present invention;

[0026] Figure 2 It is a bottom view structural diagram of the cleaning device of the present invention;

[0027] Figure 3 It is an overall cross-sectional structural diagram of the cleaning device of the present invention;

[0028] Figure 4 For the present invention Figure 3 A magnified schematic diagram of point A;

[0029] Figure 5 Schematic diagram of the revolution mechanism of the cleaning device of the present invention;

[0030] Figure 6 This is a schematic diagram of the position structure of the first installation shaft of the cleaning device of the present invention;

[0031] Figure 7 This is a schematic diagram of the position structure of the second installation shaft of the cleaning device of the present invention;

[0032] Figure 8 This is a schematic diagram of the internal structure of the protective shell of the cleaning device of the present invention;

[0033] Figure 9 A schematic diagram of the self-rotating mechanism and explosion structure of the cleaning device of the present invention;

[0034] Figure 10 It is a structural schematic diagram of the lifting mechanism of the present invention;

[0035] Figure 11 It is a structural schematic diagram of the buffer device of the lifting mechanism of the present invention. DETAILED DESCRIPTION

[0036] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments:

[0037] The sanitation cleaning vehicle capable of achieving deep cleaning provided by the present invention comprises a cleaning device and a lifting mechanism thereof.

[0038] Reference Figures 1-9The cleaning device includes a support base 1, the side of the support base 1 is raised and lowered to set the first mounting base 2 by a first hydraulic rod 601, and the side of the first mounting base 2 is laterally moved to set the second mounting base 3 by a second hydraulic rod 603. The side of the second mounting base 3 is connected to the extension frame 4 through an ear shaft, and 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 provided on the lower side of the extension frame 4, and a shell cover 501 is installed on the top of the protective shell 5. Two brush cylinders 7 are symmetrically arranged on the lower side of the protective shell 5. The upper ends of the brush cylinders 7 are mounted in the reinforcement 701 by bolts. A linear groove 502 is provided on the lower inner wall of the protective shell 5 corresponding to the reinforcement 701. A revolution mechanism 8 is provided inside the extension frame 4 to drive the protective shell 5 and the brush cylinder 7 to rotate as a whole. A spacing adjustment mechanism 9 is provided between the extension frame 4 and the protective shell 5 to adjust the distance between the two brush cylinders 7. A slide rail 11 is fixedly installed in the protective shell 5, and two sets of rotation mechanisms 10 are provided on the slide rail 11, which respectively drive the corresponding brush cylinder 7 to rotate.

[0039] The side of the support seat 1 is raised and lowered to set the first mounting seat 2 by the first hydraulic rod 601, and the side of the first mounting seat 2 is laterally moved to set the second mounting seat 3 by the second hydraulic rod 603. The side of the second mounting seat 3 is connected to the extension frame 4 through the ear shaft, and the angle between the second mounting seat 3 and the extension frame 4 is adjusted by the electric push rod 6. A protective shell 5 is set on the lower side of the extension frame 4, and a shell cover 501 is installed on the top of the protective shell 5. Two brush cylinders 7 are symmetrically arranged on the lower side of the protective shell 5. The upper end of the brush cylinder 7 is installed in the reinforcement 701 by bolts, and a linear groove 502 is provided on the lower inner wall of the protective shell 5 corresponding to the reinforcement 701. A revolution mechanism 8 is set inside the extension frame 4 to drive the protective shell 5 and the brush cylinder 7 to rotate as a whole, and a spacing adjustment mechanism 9 is set between the extension frame 4 and the protective shell 5 to adjust the distance between the two brush cylinders 7. A slide rail 11 is fixedly installed in the protective shell 5, and two sets of rotation mechanisms 10 are provided on the slide rail 11, which respectively drive the corresponding brush cylinder 7 to rotate.

[0040] In this embodiment, it is necessary to specifically explain that: the support seat 1 is the basic structure of the device, which 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 seat 2, the second hydraulic rod 603 is used to drive the lateral movement of the second mounting seat 3, and the electric push rod 6 is used to adjust the angle of the extension frame 4 relative to the second mounting seat 3. The electric push rod 6, the first hydraulic rod 601 and the second hydraulic rod 603 form a displacement mechanism, which can adjust the position of the brush cylinder 7 according to the position to be cleaned. The brush cylinder 7 and the water pipe 13 constitute a cleaning component. Through multi-dimensional motion coordination, the precise positioning and posture adjustment of the cleaning component in space are realized, and the full-dimensional cleaning of the three-dimensional surface of the guardrail and the shoulder stone is achieved, avoiding The traditional cleaning blind spot solves the limitations of traditional cleaning devices in height, distance and angle adjustment, and significantly improves the efficiency, flexibility and intelligence level of sanitation operations. It is especially suitable for the cleaning needs of guardrails and shoulders in complex urban road environments. The upper end of the brush cylinder 7 is inserted into the lower end of the reinforcement 701, and then the brush cylinder 7 and the reinforcement 701 are fixed by bolts. The reinforcement 701 passes through the turntable 901 and extends to the inside of the extension frame 4. The revolution mechanism 8 is used to control the overall rotation of the protective shell 5 and the brush cylinder 7, and the rotation mechanism 10 is used to drive the brush cylinder 7 to rotate. The spacing adjustment mechanism 9 is used to dynamically adjust the horizontal spacing between the two brush cylinders 7, so that it can adapt to guardrail structures of different widths, shoulder stone sizes or cleaning scene requirements.

[0041] The main difference between this embodiment and the prior art is that this embodiment adopts a combination of a revolution mechanism 8, a spacing adjustment mechanism 9 and a rotation mechanism 10 to realize a compound motion, specifically: the revolution mechanism 8 is used to control the overall rotation of the two brush drums 7, and 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 drum 7 to perform a circular motion around the axis of the extension frame 4, providing a first cleaning method, and the revolution motion of the brush drum 7 can cover the entire side and top of the guardrail, avoiding the missed areas of traditional fixed-angle cleaning, and is particularly suitable for surrounding cleaning of cylindrical or special-shaped guardrails; the rotation mechanism 10 is used to control the two brush drums 7 to rotate independently, and the first spur gear 1003 is driven to rotate by the third motor 1002, and finally the reinforcement 701 and the brush drum 7 are driven to rotate under the meshing action of the second spur gear 1005. Through the precise transmission design, the brush drum 7 produces a rotation motion, completing the stain removal and scrubbing of the cleaning objects such as the guardrail surface and the curb stone, using The friction between the bristles and the cleaning surface removes attachments such as dust, oil, and mud, and the lateral spacing between the two brush barrels 7 can be dynamically adjusted through the spacing adjustment mechanism 9. When a traditional fixed-spacing brush device is used to clean a narrow guardrail, the brushes on both sides are prone 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 cleaning efficiency. Under the combined action of the revolution mechanism 8, the spacing adjustment mechanism 9 and the rotation mechanism 10, a 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. It can clean the entire circumference and top of the guardrail, eliminating the cleaning blind spots of narrow-spacing guardrail gaps or wide-width shoulder stone edges, and deeply cleaning depressions that are difficult to reach during revolution movement, with more comprehensive cleaning without dead angles. The revolution mechanism 8, the spacing adjustment mechanism 9 and the rotation mechanism 10 all adopt a modular design, and wear parts can be replaced independently. The maintenance cost is lower than that of the traditional integrated structure, and the scope of use is wider.

[0042] The above structure is the main structure of this embodiment, which solves the problems of incomplete guardrail cleaning 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.

[0043] Reference Figure 3-Figure 6The 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 in the extension frame 4 and fixedly connected to the output end of the first motor 801, the first mounting shaft 804 is rotatably connected in the extension frame 4, and its lower end passes 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, and the synchronous belt 803 is transmission-connected between the driving wheel 802 and the driven wheel 805.

[0044] In this embodiment, it is necessary to specifically explain that: during operation, the first motor 801 drives the driving wheel 802 to rotate, the output shaft drives the driving wheel 802 to rotate, and the power is transmitted to the driven wheel 805 through the synchronous belt 803, driving the first installation shaft 804 to rotate, and then driving the protective shell 5 and the brush cylinder 7 to rotate around the first installation shaft 804. The first motor 801 controls the revolution direction by 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 by the revolution of the brush cylinder 7 causes the outer bristles to expand outward, enhancing the fit to the curved surface of the guardrail, which is especially suitable for surrounding cleaning of cylindrical guardrails. The first motor 801 can be connected to a frequency converter, and the speed can be adjusted in real time through the on-board 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 to avoid collision. High-speed rotation is suitable for cleaning large-area flat surfaces to improve coverage efficiency.

[0045] Reference Figure 4-Figure 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 engaged and rotatably connected to the bottom of the protective shell 5. The turntable 901 is provided with an arc groove 902 at the position corresponding to the reinforcement 701. The two reinforcements 701 are respectively slidably connected in the corresponding arc 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.

[0046] In this embodiment, it should be specifically explained 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 second mounting shaft 903 is driven to rotate by the output end of the second motor 904, and the second mounting shaft 903 drives the turntable 901 to rotate. The reinforcement 701 moves under the restriction of the arc 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 reinforcements 701 gradually approaches or moves away, thereby adjusting the distance between the two brush cylinders 7. A limit block is provided on the surface of the reinforcement 701 to prevent the reinforcement 701 from excessive sliding or angular displacement. The lateral spacing between the two brush cylinders 7 is dynamically adjusted through mechanical transmission to adapt to cleaning objects such as guardrails and curb stones of different widths. When cleaning narrow-pitch guardrails, the spacing between the two brush cylinders 7 is contracted so that the two brush cylinders 7 can penetrate deep into the gap between the guardrail posts, thereby avoiding the idling waste of traditional fixed-pitch brushes. The cleaning efficiency is improved. When cleaning wide shoulder stones, the distance between the two brush cylinders 7 is expanded to cover the full width of the shoulder stones at one time. The vertical angle of the extension frame 4 is used to achieve brushing without dead angles on the top surface. When cleaning special-shaped structures, the distance is dynamically fine-tuned to make the brush cylinder 7 fit the complex contour, eliminating cleaning blind spots and greatly improving the cleaning effect. No complex electronic control or hydraulic system is required, and adjustment is achieved only through mechanical coordination to avoid the risk of failure of electronic components in humid and dusty environments. It is suitable for the harsh working conditions of sanitation operations and can be linked with vehicle-mounted sensors, such as laser radar pre-scanning the guardrail spacing. This is an existing technology and will not be elaborated on to reduce manual intervention. The simplicity of mechanical transmission and the flexibility of dynamic adaptation solve the core pain points of "fixed spacing and single scene" of traditional cleaning devices. The technical essence is to transform "passive adaptation" into "active adjustment", so that the cleaning components can automatically optimize the layout according to the real-time detected environmental parameters, and ultimately achieve an efficient operation mode of "one set of devices, multiple scenes".

[0047] Reference Figure 1 The top of the support seat 1 is fixedly connected to the first hydraulic rod 601, the side of the support seat 1 is fixedly connected to the slide 602, the first mounting seat 2 is slidably connected in the slide 602, and the extended end of the first hydraulic rod 601 is fixedly connected to the first mounting seat 2.

[0048] In this embodiment, it should be specifically explained that: the extended 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 tube 7 to rise and fall as a whole, thereby realizing vertical height adjustment to adapt to guardrails, curb stones or road slopes of different heights.

[0049] Reference Figure 2The telescopic rod 604 is fixedly connected between the first mounting seat 2 and the second mounting seat 3, the second hydraulic rod 603 is fixedly connected to the side of the first mounting seat 2 close to the support seat 1, and the extended end of the second hydraulic rod 603 is fixedly connected to the second mounting seat 3.

[0050] In this embodiment, it should be specifically explained that the two ends of the telescopic rod 604 are respectively fixed to the first mounting base 2 and the second mounting base 3, and are located at the four corners between the two to form a rigid connection, thereby offsetting the lateral force generated when the second hydraulic rod 603 is driven laterally, and preventing the second mounting base 3 from tilting or shaking due to uneven force.

[0051] Reference Figure 1 An electric push rod 6 is installed between the second mounting seat 3 and the top of the extension frame 4, and at least two electric push rods 6 are provided.

[0052] In this embodiment, it should be specifically explained 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. The inclination angle of the extension frame 4 can be adjusted by the electric push rod 6, so that the brush barrel 7 can be tilted forward to clean the flat or curved surface of the top of the guardrail, vertically downward to clean vertical surfaces such as the top surface of the shoulder stone and the side wall of the tunnel, and tilted backward to adapt to the inclination angle of the guardrail when the vehicle climbs the slope. It can fit non-vertical surfaces such as the top of the guardrail and the top surface of the shoulder stone to achieve multi-angle cleaning.

[0053] Reference Figure 2 A distance sensor 12 is installed at the bottom of the protective shell 5.

[0054] In this embodiment, it should be specifically explained that the distance sensor 12 monitors the distance and angle between the brush barrel 7 and the cleaning objects such as guardrails and curb stones in real time, provides feedback data, and realizes the automation and precision of the cleaning process.

[0055] Reference Figure 1 A water pipe 13 is installed on the side of the support base 1 and the extension frame 4, and a nozzle is installed at the end of the water pipe 13.

[0056] In this embodiment, it should be specifically explained that the water pipe 13 sprays water to the cleaning area through the end nozzle. The nozzle can be designed as a rotatable nozzle, which is linked with the brushing action of the brush barrel 7 to achieve an integrated "brushing + flushing" operation, thereby improving the cleaning effect and efficiency.

[0057] The working principle of the cleaning device of the present invention:

[0058] The main problem solved by this embodiment is: using the revolution mechanism 8, the spacing adjustment mechanism 9 and the rotation mechanism 10 to achieve compound motion, solving the blind spot problem of the traditional cleaning device's one-way brushing, and being able to clean the entire circumference and top of the guardrail, eliminating the cleaning blind spots in the gaps between narrow-spaced guardrails or the edges of wide shoulder stones.

[0059] The specific steps are as follows:

[0060] S1. Preparation before operation: Check whether the mechanical installation is firm and whether the electrical equipment is in normal use. According to the municipal guardrail model, set the initial value of the distance between the two brush cylinders 7;

[0061] S2. Water spray system: Connect the water pipe 13 to the vehicle water tank, open the valve of the water pipe 13, test the spray direction and water pressure of the nozzle, if foam or disinfection function is required, connect the corresponding storage tank and debug the proportional pump;

[0062] S3. Vehicle driving and positioning: When the sanitation vehicle approaches the guardrail at a slow speed, the vehicle's onboard camera or laser radar pre-scans the height and spacing of the guardrail in front. Based on the pre-scan 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;

[0063] S4. Execution of cleaning operations:

[0064] S401, cleaning the sides and top of the guardrail: The third motor 1002 drives the first spur gear 1003 to rotate, and under the meshing action of the second spur gear 1005, the reinforcement 701 and the brush cylinder 7 are finally driven to rotate. Through the precise transmission design, the brush cylinder 7 is caused to produce self-rotation motion, completing the stripping and scrubbing of stains on the guardrail surface, curb stones and other cleaning objects. The nozzle of the water pipe 13 is turned on, and the water flow is aimed at the rotating area of the brush cylinder 7 to simultaneously rinse the stripped stains; at the same time, the distance sensor 12 monitors the distance in real time and automatically instructs the second hydraulic rod 603 to fine-tune the lateral distance to prevent collision; when encountering a curved 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;

[0065] S402, cleaning the top surface of the curb stone: The extension frame 4 is tilted backward 90° by the electric push rod 6, so that the brush cylinder 7 is vertically aligned downward with the curb stone. The second hydraulic rod 603 is greatly extended, so that the brush cylinder 7 is close to the edge of the curb stone. Then, when the first motor 801 rotates, the synchronous belt drive drives the first installation shaft 804 to rotate, thereby driving the protective shell 5 and the internal brush cylinder 7 to perform a circular motion around the axis of the extension frame 4, achieving full coverage and cleaning of the top surface. The water pipe 13 sprays atomized water to suppress dust and rinse away residual stains;

[0066] S403, spacing adjustment: When the spacing between the brush cylinders 7 needs to be adjusted, the second installation shaft 903 is driven to rotate by the output end of the second motor 904, and the second installation shaft 903 drives the turntable 901 to rotate. The reinforcement 701 moves under the restriction of the arc 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.

[0067] In order to enable the entire cleaning device to be lifted and lowered smoothly and to facilitate deep cleaning, the present invention further provides a lifting mechanism for the cleaning device.

[0068] like Figure 10 As shown, 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, a 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 portion of the fixed frame. One end of the cylinder 219 is hinged to the upper portion 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 portion of the fixed hinge plate 210, and the other end is hinged to the lower portion of the vertical hinge plate 213. One end of the upper hinge plate 215 is hinged to the upper portion of the fixed hinge plate 210, and the other end is hinged to the upper portion of the vertical hinge plate 213. The lifting bracket 212 is fixed to the vertical hinge plate 213 and is used to fix the cleaning device: the lifting bracket 212 is fixedly connected to the support base 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.

[0069] The rising and falling motions of the oil cylinder are transmitted to the lifting fixed frame through the upper and lower hinged plates and the vertical hinged plate, thereby realizing the rising and lowering motions of the entire cleaning device.

[0070] In order to achieve the slow lifting 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 fixing frame 220, and the other end is hinged between the two ends of the upper hinge plate 215.

[0071] like Figure 11 As shown, the buffer device comprises a cylinder 2181, a spring 2182, a sealing ring 2184, and a piston rod 2185. The spring is sleeved onto the piston rod, with its ends contacting the cylinder and the piston rod, respectively. The inner ring of the sealing ring contacts the piston rod, while the outer ring contacts the cylinder. An exhaust valve 2183 is located at the end of the cylinder away from the piston rod. This valve prevents the device from rising to its full height due to the excessive pressure of compressed gas, and also prevents damage to the sealing ring caused by the impact of the compression process.

[0072] In order to limit the upper limit of the cleaning device rising, a limit block 217 is also included. The limit block is fixed to the lower end of the fixing frame 220 and the top of the cleaning device. The bottom of the limit block is made of non-metallic material.

[0073] In order to prevent the entire lifting mechanism from shaking and loosening during repeated operation, an anti-loosening device 214 is also included. One end of the anti-loosening device is hinged to the upper part of the fixing frame 220, and the other end is hinged between the two ends of the upper hinge plate 215. The anti-loosening device is preferably a spring or a cylinder.

Claims

1. A sanitation cleaning vehicle capable of achieving deep cleaning, characterized by: Including cleaning device and lifting mechanism; The cleaning device comprises a support base (1), a first mounting base (2) is arranged on the side of the support base (1) by lifting and lowering the first mounting base (2) via a first hydraulic rod (601), a second mounting base (3) is arranged on the side of the first mounting base (2) by moving laterally via a second hydraulic rod (603), a side of the second mounting base (3) is connected to an extension frame (4) via an ear shaft, an angle between the second mounting base (3) and the extension frame (4) is adjusted via 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 arranged on the top of the protective shell (5), and two brushes are symmetrically arranged on the lower side of the protective shell (5) The upper end of the brush cylinder (7) is mounted in the reinforcement member (701) by means of bolts, and a linear groove (502) is provided on the lower inner wall of the protective shell (5) corresponding to the reinforcement member (701). A revolution mechanism (8) is provided inside the extension frame (4) to drive the protective shell (5) and the brush cylinder (7) to rotate as a whole. A spacing adjustment mechanism (9) is provided between the extension frame (4) and the protective shell (5) to adjust the distance between the two brush cylinders (7). A slide rail (11) is fixedly installed in the protective shell (5), and two sets of rotation mechanisms (10) are provided on the slide rail (11), which respectively drive the corresponding brush cylinder (7) to rotate. Each group of the self-rotating mechanism (10) includes a slide (1001), a third motor (1002), a shaft sleeve (1004) and a first spur gear (1003), the slide (1001) is mounted on the surface of the slide rail (11), the third motor (1002) is fixedly connected to the top of the slide (1001), the output end of the third motor (1002) is fixed to the first spur gear (1003), the shaft sleeve (1004) is fixedly connected to the lower side of the slide (1001), and the shaft sleeve (1004) is slidably connected in the linear groove (502), the upper end of the reinforcement (701) is rotatably connected in the shaft sleeve (1004) and fixedly connected to the second spur gear (1005), and the first spur gear (1003) is meshed with the second spur gear (1005).

2. The sanitation cleaning vehicle according to claim 1, characterized in that: The revolution mechanism (8) comprises a first motor (801), a driving wheel (802), a synchronous belt (803), a first mounting shaft (804) and a driven wheel (805), wherein the first motor (801) is fixedly connected to the top of the extension frame (4), the driving wheel (802) is rotatably connected to the extension frame (4) and fixedly connected to the output end of the first motor (801), the first mounting shaft (804) is rotatably connected to the extension frame (4), the lower end of which passes 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), and the synchronous belt (803) is transmission-connected between the driving wheel (802) and the driven wheel (805).

3. The sanitation cleaning vehicle according to claim 1, characterized in that: The spacing adjustment mechanism (9) comprises a rotating disk (901), a second mounting shaft (903), a second motor (904) and a reinforcement plate (905); the rotating disk (901) is engaged and rotatably connected to the bottom of the protective shell (5); an arcuate groove (902) is provided on the rotating disk (901) at a position corresponding to the reinforcement member (701); the two reinforcement members (701) are respectively slidably connected in the corresponding arcuate grooves (902); the second mounting shaft (903) is rotatably connected in the first mounting shaft (804); the lower end of the second mounting shaft (903) is fixedly connected to the rotating disk (901); the upper end of the first mounting shaft (804) is fixedly connected to the reinforcement plate (905) by a bolt; 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: The top of the support seat (1) is fixedly connected to the first hydraulic rod (601), the side of the support seat (1) is fixedly connected to the slide seat (602), the first mounting seat (2) is slidably connected in the slide seat (602), and the extended 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: A telescopic rod (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 a side of the first mounting seat (2) close to the support seat (1); and an extended 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 second mounting seat (3) and the top of the extension frame (4); and at least two electric push rods (6) are provided; and a distance sensor (12) is installed at the bottom of the protective shell (5).

6. The sanitation cleaning vehicle according to claim 1, characterized in that: Water pipes (13) are 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, characterized in that: The lifting mechanism comprises a fixing frame (220), a connecting plate (216), a fixed hinged plate (210), a lower hinged plate (211), an upper hinged plate (215), a vertical hinged plate (213), an oil cylinder (219), and a lifting fixing frame (212); the fixing frame (220) is fixedly connected to the connecting plate (216), and is fixedly connected to the chassis frame of the sanitation vehicle via the connecting plate; the fixed hinged plate (210) is fixed to the lower part of the fixing frame; one end of the oil cylinder (219) is hinged to the upper part of the fixing frame, and the other end is hinged to the lower hinged plate (211); one end of the lower hinged plate (211) is hinged to the lower part of the fixed hinged plate (210), and the other end is hinged to the lower part of the vertical hinged plate (213); one end of the upper hinged plate (215) is hinged to the upper part of the fixed hinged plate (210), and the other end is hinged to the upper part of the vertical hinged plate (213); the lifting and fixing frame (212) is fixed to the vertical hinged plate (213), and the lifting and fixing frame is used to fix the cleaning equipment; the hinge points between the fixed hinged plate, the upper hinged plate, the lower hinged plate, and the vertical hinged plate are connected to form a parallelogram.

8. The sanitation cleaning vehicle according to claim 7, characterized in that: The utility model further comprises a buffer device (218), one end of which is hinged to the lower part of the fixing frame (220), and the other end of which is hinged between the two ends of the upper hinge plate (215); the buffer device comprises 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 the two ends of the spring are respectively in contact with the cylinder body and the end of the piston rod; the inner ring of the sealing ring is in contact with the piston rod, and the outer ring is in contact with the cylinder body; and an exhaust valve (2183) is provided at the end of the cylinder body away from the piston rod.

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

10. The sanitation cleaning vehicle according to claim 7, characterized in that: It also includes an anti-loosening device (214), one end of which is hinged to the upper part of the fixing frame (220), and the other end of which is hinged between the two ends of the upper hinge plate (215); the anti-loosening device is a spring or a cylinder.

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