A selective treatment device and method for multiple types of garbage from a sanitation sweeper truck

Abstract

This invention relates to a selective waste treatment device for a sanitation sweeper truck. The suction nozzle is located on a suction cup platform. Waste is placed on the suction cup platform via a sensor. A first hydraulic column is connected to the suction cup platform and controls its raising or lowering. The first hydraulic column, a first fixed platform, and a second fixed platform are located above the suction cup platform. The first fixed platform is hinged to a first movable rod, and the second fixed platform is hinged to one end of a second hydraulic column. The other end of the second hydraulic column is hinged to the first movable rod, and the first movable rod is connected to a first suction nozzle baffle. Unlike existing technologies, this invention determines whether large waste is passing by by compressing the second movable rod with the first front baffle. The piezoelectric sensor sends a signal to the control module, controlling the movement of the first hydraulic column, which in turn moves the second hydraulic column, thereby raising the entire suction nozzle platform and effectively sucking up relatively high waste.

Description

Technical Field

[0001] This invention relates to the field of sanitation sweeper technology, and in particular to a device and method for selectively treating multiple types of waste in a sanitation sweeper. Background Technology

[0002] With social development and accelerated urbanization, the area requiring street cleaning is constantly increasing, making street cleaning increasingly arduous. Manual cleaning is inefficient and labor-intensive, no longer suitable for large-scale street cleaning. Promoting mechanized cleaning has become an inevitable trend. In recent years, the use of street sweepers and other urban street cleaning machinery has alleviated the pressure on street cleaning to some extent; however, certain problems still exist in the use of street sweepers.

[0003] To ensure suction power, the suction nozzles of existing sweepers are usually placed close to the ground. This makes them unable to effectively pick up garbage that is higher than a certain height on the road. Therefore, a device that can pick up relatively high garbage is needed. Summary of the Invention

[0004] Therefore, there is a need for a device and method for selectively treating multiple types of garbage on a sanitation sweeper truck, which can solve the technical problem that existing sweeper trucks typically have their suction nozzles close to the ground in order to ensure suction power, making it impossible to effectively pick up garbage that is higher than a certain height on the road.

[0005] To achieve the above objectives, in a first aspect, the inventor provides a multi-type selective waste treatment device for a sanitation sweeper, including a suction cup platform, a suction pipe inlet, a first hydraulic column, a first fixed platform, a second fixed platform, a second hydraulic column, a first movable rod, a first suction port baffle, a second suction port baffle, a first front baffle, a second movable rod, a piezoelectric sensor, a first connecting column, a waste passage sensor, a support spring, a spring support platform, and a third suction port baffle;

[0006] The suction nozzle is located on the suction cup platform. The waste is placed on the suction cup platform by a sensor. The first hydraulic column is connected to the suction cup platform and is used to control the rise or fall of the suction cup platform. The first hydraulic column, the first fixed platform, and the second fixed platform are located above the suction cup platform. The first fixed platform is hinged to the first movable rod, the second fixed platform is hinged to one end of the second hydraulic column, and the other end of the second hydraulic column is hinged to the first movable rod. The first movable rod is connected to the first suction nozzle baffle.

[0007] The first connecting post is located in front of the suction port of the suction tube. The first connecting post is connected to the bottom of the sanitation sweeper. The piezoelectric sensor is set at the bottom of the first connecting post. One end of the second movable rod is connected to the piezoelectric sensor, and the other end of the second movable rod is connected to the first front baffle. The piezoelectric sensor is connected to the control module. The control module is connected to and controls the first hydraulic column and the second hydraulic column.

[0008] The oil circuits of the first hydraulic column and the second hydraulic column are connected by a reversing valve. The first suction port baffle and the third suction port baffle are hinged. The second suction port baffle is positioned opposite to the first suction port baffle. The third suction port baffle is connected to the spring support platform. The spring support platform is connected to the support spring. The support spring is connected to the first suction port baffle.

[0009] Unlike existing technologies, the above technical solution determines whether large debris is passing by by compressing the second movable rod with the first front baffle. The piezoelectric sensor sends a signal to the control module to control the movement of the first hydraulic column, which in turn drives the movement of the second hydraulic column. This allows the entire suction platform to rise while maintaining the same distance between the first suction baffle and the ground, effectively sucking up relatively tall debris.

[0010] In one embodiment of the present invention, the first suction port baffle and the third suction port baffle are V-shaped baffles.

[0011] In this way, the V-shaped first suction port baffle can concentrate the debris at the edge of the suction nozzle to the area directly below the suction port, thereby improving suction efficiency.

[0012] In one embodiment of the present invention, the sanitation sweeper is operating normally. The first front baffle is vertically downward, the second movable rod is not extended or retracted, the piezoelectric sensor has no signal, the first hydraulic column lowers the suction cup platform to a preset height, the first hydraulic column moves downward, and its return port is connected to the inlet oil of the second hydraulic column through a reversing valve. The second hydraulic column raises the first movable rod to a preset height, the first movable rod drives the first suction port baffle to maintain a preset distance between the first suction port baffle and the ground, and the second suction port baffle contacts the first suction port baffle to maintain a preset angle.

[0013] In one embodiment of the present invention, when garbage passes by, the first front baffle encounters the garbage and rotates backward by a preset angle, causing the compressible second movable rod to trigger the piezoelectric sensor. The piezoelectric sensor transmits a signal to the control module, which controls the first hydraulic column to rise to a preset height. The first hydraulic column controls the return port of the second hydraulic column to connect with the inlet port of the first hydraulic column through a reversing valve. This achieves the following: during the rising process of the first hydraulic column, the second hydraulic column and the first movable rod are controlled to lower their height, causing the first suction baffle to descend by a preset height, keeping the distance between the first suction baffle and the ground constant. The second suction baffle contacts the first suction baffle, keeping the first suction baffle at a preset angle. When the sensor of the second hydraulic column detects that the second hydraulic column has descended to the preset height, it sends a signal to the control module to stop the first hydraulic column from rising further and maintain its original state.

[0014] In one embodiment of the present invention, when an obstacle passes by and cannot be sucked in by the suction cup platform, the obstacle is blocked by the third suction port baffle. The third suction port baffle drives the spring support platform to compress the support spring clockwise, allowing the obstacle to pass smoothly.

[0015] In one embodiment of the present invention, after the piezoelectric sensor receives a signal of debris collision through the second movable rod, it sends a signal to the control module. The control module controls the first hydraulic column to rise. When the oil level of the second hydraulic column sensor is at its minimum, the second hydraulic column descends to its maximum height. The height of the first hydraulic column is maintained. When the sensor detects the debris passing through, it transmits the signal to the control module. If no signal is input to the control module within 20 seconds, the control module controls the first hydraulic column to descend.

[0016] Thus, road debris can be selectively processed through three different modes: normal wastewater treatment, treatment of large, light obstacles, and treatment of large, heavy obstacles. The suction port baffle has a spring-loaded support structure at its bottom, which allows it to move backward when heavy stones pass by, preventing them from accumulating at the suction port and obstructing normal waste collection.

[0017] To achieve the above objectives, in a second aspect, the inventors provide a method for selectively treating multiple types of waste using a sanitation sweeper truck, including a sanitation sweeper truck device for selectively treating multiple types of waste as described in any of the above-mentioned items.

[0018] After receiving a signal that it has come into contact with the debris, the piezoelectric sensor located below the first connecting column transmits the signal to the control module. The control module then controls the first hydraulic column to adjust the height of the suction cup platform.

[0019] Once the sensor detects the passage of debris above the suction nozzle, it transmits the signal to the control module. The control module then controls the first hydraulic column to adjust the height of the suction cup platform to restore it to normal cleaning and sweeping mode.

[0020] Unlike existing technologies, the technical solution of this application determines whether large garbage is passing through based on the information from the piezoelectric sensor on the undercarriage baffle; based on the electrical signal emitted by the undercarriage sensor, the height of the bottom suction nozzle is adjusted while the suction nozzle baffle is lowered so that the suction nozzle has sufficient height to pick up the garbage; based on the large garbage on the suction nozzle pipe, the sensor detects whether large garbage has passed through, and if large garbage is detected, the suction nozzle platform is lowered to resume normal sewage suction.

[0021] In one embodiment of the present invention, a second hydraulic sensor is provided at the position of the second hydraulic column. After the second hydraulic column is lowered to a preset height, the second hydraulic column sensor sends a signal to the first hydraulic column, and the lifting action stops.

[0022] As one embodiment of the present invention, if the control module does not receive any signal after 20 seconds, it will control the first hydraulic column to adjust the height of the suction cup platform to restore the normal cleaning state.

[0023] Thus, the piezoelectric sensor receives a signal and transmits it to the control module. The control module then controls the lifting device to a certain height, which is signaled by the second hydraulic sensor. When the oil level in the second hydraulic column sensor is at its minimum, the second hydraulic column has descended to its maximum height, at which point the lifting device stops moving. When a large piece of debris passes through, the sensor detects the debris and transmits the signal to the control module. Alternatively, if no signal is input to the control module within 20 seconds, the control module controls the lifting device to descend.

[0024] The above description of the invention is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0025] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0026] In the accompanying drawings of the instruction manual:

[0027] Figure 1 This is a schematic diagram showing the state of the suction nozzle device when a sanitation sweeper is working normally (sucking sewage) according to an embodiment of this application;

[0028] Figure 2This is a schematic diagram showing the state of the suction nozzle device when a sweeper truck encounters a large, lightweight obstacle (such as a plastic bottle or a packaging box) according to one embodiment of this application.

[0029] Figure 3 This is a schematic diagram showing the state of the suction nozzle when a sweeper truck encounters a large, heavy obstacle (such as a rock) according to one embodiment of this application.

[0030] Figure 4 This is a schematic diagram of a V-shaped baffle according to an embodiment of this application;

[0031] Figure 5 This is a flowchart illustrating the working modes under three different scenarios in one embodiment of this application;

[0032] Figure 6 This is a simplified illustration of the cleaning process according to one embodiment of this application.

[0033] The reference numerals used in the above figures are explained as follows:

[0034] 1. Suction cup platform; 2. Suction tube inlet; 3. First hydraulic column; 4. First fixed platform; 5. Second fixed platform; 6. Second hydraulic column; 7. First movable rod; 8. First suction port baffle; 9. Second suction port baffle; 10. First front baffle; 11. Second movable rod; 12. Piezoelectric sensor; 13. First connecting column; 14. Waste passing sensor; 15. Support spring; 16. Spring support platform; 17. Third suction port baffle. Detailed Implementation

[0035] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0036] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0037] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0038] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, X and / or Y means: X exists, Y exists, and X and Y exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0039] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0040] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0041] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0042] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0043] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0044] According to some embodiments of this application, please refer to Figures 1 to 6 This embodiment relates to a selective treatment device for multiple types of garbage in a sanitation sweeper, including a suction cup platform 1, a suction pipe 2, a first hydraulic column 3, a first fixed platform 4, a second fixed platform 5, a second hydraulic column 6, a first movable rod 7, a first suction port baffle 8, a second suction port baffle 9, a first front baffle 10, a second movable rod 11, a piezoelectric sensor 12, a first connecting column 13, a garbage passing sensor 14, a support spring 15, a spring support platform 16, and a third suction port baffle 17.

[0045] The suction nozzle 2 is located on the suction cup platform 1. The waste is placed on the suction cup platform 1 through the sensor 14. The first hydraulic column 3 is connected to the suction cup platform 1. The first hydraulic column 3 is used to control the rise or fall of the suction cup platform 1. The first hydraulic column 3, the first fixed platform 4, and the second fixed platform 5 are located above the suction cup platform 1. The first fixed platform 4 is hinged to the first movable rod 7. The second fixed platform 5 is hinged to one end of the second hydraulic column 6. The other end of the second hydraulic column 6 is hinged to the first movable rod 7. The first movable rod 7 is connected to the first suction nozzle baffle 8.

[0046] The first connecting post 13 is located in front of the suction port 2 of the suction tube. The first connecting post 13 is connected to the bottom of the sanitation sweeper. The piezoelectric sensor 12 is set at the bottom of the first connecting post 13. One end of the second movable rod 11 is connected to the piezoelectric sensor 12, and the other end of the second movable rod 11 is connected to the first front baffle 10. The piezoelectric sensor 12 is connected to the control module. The control module is connected to and controls the first hydraulic column 3 and the second hydraulic column 6.

[0047] The oil circuits of the first hydraulic column 3 and the second hydraulic column 6 are connected by a reversing valve. The first suction port baffle 8 and the third suction port baffle 17 are hinged. The second suction port baffle 9 is positioned opposite to the first suction port baffle 8. The third suction port baffle 17 is connected to the spring support platform 16. The spring support platform 16 is connected to the support spring 15. The support spring is connected to the first suction port baffle 8.

[0048] Unlike existing technologies, the above technical solution determines whether large debris is passing by by compressing the second movable rod 11 with the first front baffle 10 to trigger the piezoelectric sensor 12. The piezoelectric sensor 12 sends a signal to the control module to control the movement of the first hydraulic column 3, which in turn drives the movement of the second hydraulic column 6. This allows the entire suction platform to rise while maintaining the distance between the first suction baffle 8 and the ground, effectively sucking up relatively tall debris.

[0049] According to some embodiments of this application, optionally, the first suction port baffle 8 and the third suction port baffle are V-shaped baffles.

[0050] Thus, the V-shaped first suction port baffle 8 can concentrate the debris on the edge of the suction nozzle to the area directly below the suction port, improving suction efficiency.

[0051] According to some embodiments of this application, optionally, when the sanitation sweeper is working normally, the first front baffle 10 is vertically downward, the second movable rod 11 is not extended or retracted, the piezoelectric sensor 12 has no signal, the first hydraulic column 3 lowers the suction cup platform 1 to a preset height, the first hydraulic column 3 moves downward, and its return oil port is connected to the inlet oil of the second hydraulic column 6 through a reversing valve. The second hydraulic column 6 raises the first movable rod 7 to a preset height, the first movable rod 7 drives the first suction port baffle 8, so that the first suction port baffle 8 maintains a preset distance from the ground, and the second suction port baffle 9 contacts the first suction port baffle 8, so that the first suction port baffle 8 maintains a preset angle.

[0052] According to some embodiments of this application, optionally, when garbage passes by, the first front baffle 10 encounters the garbage and rotates backward by a preset angle, driving the compressible second movable rod 11 to trigger the piezoelectric sensor 12. The piezoelectric sensor 12 transmits a signal to the control module, and the control module controls the first hydraulic column 3 to rise to a preset height. The first hydraulic column 3 controls the return port of the second hydraulic column 6 to connect with the inlet port of the first hydraulic column 3 through a reversing valve, thereby realizing that during the rising process of the first hydraulic column 3, the second hydraulic column 6 and the first movable rod 7 are controlled to lower their height, so that the first suction baffle 8 drops to a preset height, keeping the distance between the first suction baffle 8 and the ground unchanged. The second suction baffle 9 contacts the first suction baffle 8, keeping the first suction baffle 8 at a preset angle. When the sensor of the second hydraulic column 6 detects that the second hydraulic column 6 has dropped to the preset height, it sends a signal to the control module to stop the first hydraulic column 3 from rising further and maintain its original state.

[0053] According to some embodiments of this application, optionally, when an obstacle passes by and cannot be sucked in by the suction cup platform 1, the obstacle is blocked by the third suction port baffle 17, and the third suction port baffle 17 drives the spring support platform 16 to compress the support spring clockwise, so that the obstacle can pass smoothly.

[0054] According to some embodiments of this application, optionally, after the piezoelectric sensor 12 receives a signal of garbage collision through the second movable rod 11, it sends a signal to the control module. The control module controls the first hydraulic column 3 to rise. When the oil level of the second hydraulic column 6 sensor is at its minimum, it is the state where the second hydraulic column 6 descends to its maximum height, maintaining the height of the first hydraulic column 3. When the garbage passes through the sensor 14, it transmits the signal to the control module after detecting the garbage passage. Alternatively, if there is no signal input to the control module within 20 seconds, the control module controls the first hydraulic column 3 to descend.

[0055] Thus, road debris can be selectively processed through three different modes: normal wastewater treatment, treatment of large, light obstacles, and treatment of large, heavy obstacles. The suction port baffle has a spring-loaded support structure at its bottom, which allows it to move backward when heavy stones pass by, preventing them from accumulating at the suction port and obstructing normal waste collection.

[0056] This embodiment also relates to a method for selectively treating multiple types of waste from a sanitation sweeper, including a sanitation sweeper device for selectively treating multiple types of waste as described in any of the above embodiments.

[0057] After receiving a signal that it has come into contact with the garbage, the piezoelectric sensor 12 located below the first connecting column 13 transmits the signal to the control module, which then controls the first hydraulic column 3 to adjust the height of the suction cup platform 1.

[0058] When the garbage located above the suction port 2 is detected by the sensor 14, the sensor transmits the signal to the control module. The control module then controls the first hydraulic column 3 to adjust the height of the suction cup platform 1 to restore it to the normal cleaning state.

[0059] Unlike existing technologies, the technical solution of this application determines whether large garbage is passing through based on the information from the piezoelectric sensor on the undercarriage baffle; based on the electrical signal emitted by the undercarriage sensor, the height of the bottom suction nozzle is adjusted while the suction nozzle baffle is lowered so that the suction nozzle has sufficient height to pick up the garbage; based on the large garbage passing through the suction nozzle pipe, the sensor 14 detects whether large garbage has passed through, and if large garbage is detected, the suction nozzle platform 1 is lowered to resume normal sewage suction.

[0060] According to some embodiments of this application, optionally, a second hydraulic sensor is provided at the position of the second hydraulic column 6. After the second hydraulic column 6 is lowered to a preset height, the second hydraulic column 6 sensor sends a signal to the first hydraulic column 3, and the lifting action stops.

[0061] According to some embodiments of this application, optionally, if the control module does not receive any signal after 20 seconds, it will control the first hydraulic column 3 to adjust the height of the suction cup platform 1 to restore it to the normal cleaning state.

[0062] Thus, the piezoelectric sensor 12 receives a signal and transmits it to the control module. The control module then controls the lifting device to a certain height, which is signaled to the lifting device by the second hydraulic sensor. When the oil level in the second hydraulic column 6 sensor is at its minimum, the second hydraulic column 6 has descended to its maximum height, at which point the lifting device stops moving. When a large piece of debris passes through, the sensor 14 detects the passage and transmits the signal to the control module. Alternatively, if no signal is input to the control module within 20 seconds, the control module controls the lifting device to descend.

[0063] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present invention. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of the present invention, or equivalent structural or procedural transformations made using the content of the present invention's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection of the present invention.

Claims

1. A selective waste treatment device for multiple types of garbage from a sanitation sweeper truck, characterized in that, It includes a suction cup platform, a suction tube inlet, a first hydraulic column, a first fixed platform, a second fixed platform, a second hydraulic column, a first movable rod, a first suction port baffle, a second suction port baffle, a first front baffle, a second movable rod, a piezoelectric sensor, a first connecting column, a waste passing sensor, a support spring, a spring support platform, and a third suction port baffle; The suction nozzle is located on the suction cup platform. The waste is placed on the suction cup platform by a sensor. The first hydraulic column is connected to the suction cup platform and is used to control the rise or fall of the suction cup platform. The first hydraulic column, the first fixed platform, and the second fixed platform are located above the suction cup platform. The first fixed platform is hinged to the first movable rod, the second fixed platform is hinged to one end of the second hydraulic column, and the other end of the second hydraulic column is hinged to the first movable rod. The first movable rod is connected to the first suction nozzle baffle. The first connecting post is located in front of the suction port of the suction tube. The first connecting post is connected to the bottom of the sanitation sweeper. The piezoelectric sensor is set at the bottom of the first connecting post. One end of the second movable rod is connected to the piezoelectric sensor, and the other end of the second movable rod is connected to the first front baffle. The piezoelectric sensor is connected to the control module. The control module is connected to and controls the first hydraulic column and the second hydraulic column. The oil circuits of the first hydraulic column and the second hydraulic column are connected by a reversing valve. The first suction port baffle and the third suction port baffle are hinged. The second suction port baffle is positioned opposite to the first suction port baffle. The third suction port baffle is connected to the spring support platform. The spring support platform is connected to the support spring. The support spring is connected to the first suction port baffle.

2. The multi-type selective waste treatment device for sanitation sweepers according to claim 1, characterized in that, The first suction port baffle and the third suction port baffle are V-shaped baffles.

3. The multi-type selective waste treatment device for sanitation sweepers according to claim 2, characterized in that, When the sanitation sweeper is working normally, the first front baffle is vertically downward, the second movable rod is not extended or retracted, the piezoelectric sensor has no signal, the first hydraulic column lowers the suction cup platform to a preset height, the first hydraulic column moves downward, and its return oil port is connected to the inlet oil of the second hydraulic column through a reversing valve. The second hydraulic column raises the first movable rod to a preset height, the first movable rod drives the first suction port baffle to maintain a preset distance between the first suction port baffle and the ground, the second suction port baffle contacts the first suction port baffle, and maintains the first suction port baffle at a preset angle.

4. The selective waste treatment device for sanitation sweepers according to claim 3, characterized in that, When trash passes by, the first front baffle encounters it and rotates backward by a preset angle, causing the compressible second movable rod to trigger the piezoelectric sensor. The piezoelectric sensor transmits a signal to the control module, which then controls the first hydraulic column to rise to a preset height. The first hydraulic column, through a reversing valve, controls the return port of the second hydraulic column to connect with the inlet port of the first hydraulic column. This allows the second hydraulic column and the first movable rod to decrease in height during the ascent of the first hydraulic column, causing the first suction baffle to descend by a preset height, maintaining a constant distance between the first suction baffle and the ground. The second suction baffle then contacts the first suction baffle, keeping the first suction baffle at a preset angle. When the sensor of the second hydraulic column detects that the second hydraulic column has descended to the preset height, it sends a signal to the control module to stop the first hydraulic column from rising further and maintain its original position.

5. The multi-type selective waste treatment device for sanitation sweepers according to claim 4, characterized in that, When an obstacle passes by and cannot be sucked into the suction cup platform, the obstacle is blocked by the third suction port baffle. The third suction port baffle drives the spring support platform to compress the support spring clockwise, allowing the obstacle to pass smoothly.

6. The selective waste treatment device for sanitation sweepers according to claim 5, characterized in that, After the piezoelectric sensor receives a signal of debris collision through the second movable rod, it sends a signal to the control module. The control module controls the first hydraulic column to rise. When the oil level of the second hydraulic column sensor is at its minimum, the second hydraulic column descends to its maximum height, maintaining the height of the first hydraulic column. When debris passes through, the sensor detects the debris passing through and sends a signal to the control module. Alternatively, if there is no signal input to the control module within 20 seconds, the control module controls the first hydraulic column to descend.

7. A method for selectively treating multiple types of waste using a sanitation sweeper truck, characterized in that, Includes a multi-type selective waste treatment device for sanitation sweepers as described in any one of claims 1-6; After receiving a signal that it has come into contact with the debris, the piezoelectric sensor located below the first connecting column transmits the signal to the control module. The control module then controls the first hydraulic column to adjust the height of the suction cup platform. Once the sensor detects the passage of debris above the suction nozzle, it transmits the signal to the control module. The control module then controls the first hydraulic column to adjust the height of the suction cup platform to restore it to normal cleaning and sweeping mode.

8. The method for selectively treating multiple types of waste using a sanitation sweeper according to claim 7, characterized in that, A second hydraulic sensor is located at the second hydraulic column position. After the second hydraulic column descends to a preset height, the second hydraulic column sensor sends a signal to the first hydraulic column, and the lifting action stops.

9. The method for selectively treating multiple types of waste using a sanitation sweeper according to claim 7, characterized in that, If the control module does not receive any signal after 20 seconds, it will control the first hydraulic column to adjust the height of the suction cup platform to restore the normal cleaning state.

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