An unmanned sanitation device and a method of using the same
By installing a protective mechanism at the bottom of the unmanned sanitation vehicle, using bellows rings and electromagnets to prevent foreign objects from entering, safety hazards and equipment damage problems have been solved, and the efficiency of garbage screening and cleaning has been improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANG HAI JING YAO ZHONG ZHI NENG KE JI YOU XIAN GONG SI
- Filing Date
- 2023-12-14
- Publication Date
- 2026-07-21
AI Technical Summary
Existing driverless sanitation vehicles cannot effectively prevent foreign objects, animals, or children from entering the bottom of the vehicle, leading to safety hazards and equipment damage. At the same time, they cannot avoid blockage of the cleaning card or vacuum cleaner, affecting cleaning efficiency.
A protective mechanism is installed at the bottom of the vehicle body, including a bellows ring, guide cylinder, guide rod and compression spring, combined with electromagnets and magnetic bodies to prevent foreign objects from entering, and to achieve garbage screening by adjusting the magnitude of the electromagnet current to avoid jamming.
It effectively prevents foreign objects from entering, avoids equipment damage, ensures the normal operation of the sweeping brush, improves sweeping efficiency, and prevents clogging by screening the size of the garbage, thus enhancing safety and reliability.
Smart Images

Figure CN117468399B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of sanitation equipment technology, specifically relating to an unmanned sanitation equipment and its usage method. Background Technology
[0002] Sanitation vehicles are a new type of high-efficiency cleaning equipment that integrates road sweeping, garbage collection, and transportation. Sweeping trucks are widely used for cleaning highways, municipal areas, and residential areas.
[0003] Sanitation vehicles are sanitation equipment that integrates road sweeping, garbage collection and transportation. As an emerging industry, unmanned driving is gradually entering our lives with the continuous breakthroughs in 5G and artificial intelligence technologies. Using unmanned sanitation equipment can prevent sanitation workers from being exposed to severe cold and heat, wind and sun for a long time, and at the same time avoid traffic accidents caused by driver fatigue. Unmanned sanitation equipment usually first sweeps the ground with a sweeping mechanism, and then sucks up the swept garbage with a vacuum cleaner and stores it in the storage box.
[0004] Existing driverless sanitation vehicles are equipped with sweeping mechanisms and vacuum cleaners at the bottom to clean up garbage. However, they cannot filter ground garbage in terms of size, and cannot prevent the sweeping mechanism from getting stuck or the vacuum cleaner port from becoming clogged. In addition, they cannot prevent moving foreign objects, animals, or playful children from reaching under the vehicle. The entry of such objects or creatures will cause certain safety accidents or damage to the equipment. Summary of the Invention
[0005] In view of the problems raised in the background art above, the purpose of this invention is to provide an unmanned sanitation equipment and its usage method.
[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:
[0007] An unmanned sanitation equipment includes a sweeping brush installed on the bottom of the vehicle body, wherein the vehicle body is in the shape of a right triangle, the inclined surface of the vehicle body is covered with photovoltaic panels, and the bottom skirt of the vehicle body is provided with a protective mechanism to prevent foreign objects larger than the standard size from entering the bottom of the vehicle body.
[0008] The protective mechanism includes a bellows ring distributed around the edge of the vehicle body, and a guide cylinder, a guide rod, and a compression spring located inside the bellows ring. The bellows ring has a top plate, a bottom plate, and a folded piece connecting the top plate and the bottom plate. The guide cylinder is fixedly connected to the upper surface of the bottom plate, and the guide rod is fixedly connected to the lower surface of the top plate. The guide cylinder and the guide rod are inserted into each other. The compression spring is sleeved on the outer ring of the guide rod and the guide cylinder. The upper end of the compression spring is fixedly connected to the guide rod, and the lower end of the compression spring is fixedly connected to the guide cylinder.
[0009] The guide rod is equipped with an electromagnet, and the bottom of the guide cavity of the guide cylinder is equipped with a magnetic body.
[0010] Furthermore, the bottom of the vehicle body is supported by three casters, which are arranged in an isosceles triangle. This structural design, with the casters arranged in a triangular shape, saves more space at the bottom, leaving more room for installing the sweeping brush.
[0011] Further defining the caster, the caster includes a front non-powered support caster and two rear independently powered casters. The lower end of the vehicle body is the front end, and the upper end of the vehicle body is the rear end. With this structural design, the casters are independent of each other, and the two casters can perform left turns, right turns, forward movement, and backward movement.
[0012] Furthermore, the sweeping brush is positioned between the support caster and the drive wheel, and is distributed on the left and right sides of the support caster. With this structural design, the sweeping brush can effectively utilize the large remaining space on both sides of the support caster for symmetrical arrangement.
[0013] Furthermore, the bottom surface of the vehicle body is also equipped with a suction head, which is located between two sweeping brushes. The suction head is connected to a storage tank via a hose, and the storage tank is connected to an adsorption motor. With this structural design, the adsorption motor generates suction by drawing a vacuum, and the suction head adsorbs the garbage on the ground and the garbage collected by the sweeping brushes. The garbage is stored in the storage tank for centralized placement.
[0014] Further specifying, the front side of the vehicle body is provided with a front distance sensor, the rear side of the vehicle body is provided with a rear distance sensor, and the left and right sides of the vehicle body are provided with side distance sensors. With this structural design, the front distance sensor is used to detect the distance between the vehicle body and obstacles in front, the side distance sensors are used to detect the distance between the vehicle body and obstacles on the side, and the rear distance sensor is used to detect the distance between the vehicle body and obstacles behind.
[0015] Furthermore, the top of the vehicle body is equipped with a speaker that plays warning voice messages. This structural design allows the speaker to play warning voice messages to alert pedestrians in the surrounding area and prevent them from colliding with the vehicle body when they are walking with their heads down. At the same time, the speaker can also play other voice messages, such as soothing music, to improve the public environment.
[0016] Furthermore, the input current of the electromagnet is adjustable. With this structural design, the electromagnet can generate different magnitudes of attraction force depending on the magnitude of the current.
[0017] Furthermore, the upper end of the guide rod is provided with a top plate for limiting and installing. With this structural design, the top plate can fix the guide rod and abut against the end of the compression spring on the one hand, and abut against the guide cylinder when the guide rod moves downward relative to the guide cylinder to complete the downward limiting.
[0018] The present invention also provides a method for using sanitation equipment, which performs sanitation work using the aforementioned unmanned sanitation equipment.
[0019] The beneficial effects of this invention are:
[0020] 1. It can prevent moving foreign objects, animals, and playful children from reaching into the bottom of the vehicle. Specifically, a protective mechanism is set at the bottom edge of the vehicle. The bellows ring in the protective mechanism is opened by a compression spring, the top and bottom plates move in opposite directions, the folding plate stretches, and fills the space between the bottom edge of the vehicle and the ground, thus preventing moving foreign objects, animals, and playful children from reaching into the bottom of the vehicle. The position of the compression spring is regulated by the guide rod and guide cylinder. At this time, the sweeping brush can sweep the dust on the ground.
[0021] 2. It can screen ground garbage, avoiding the need for the sweeper to stop due to card swiping. The height of the bottom plate of the accordion ring is adjustable, thus reserving a certain amount of space for garbage to pass through. Attached Figure Description
[0022] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;
[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of an unmanned sanitation equipment and its usage method according to the present invention;
[0024] Figure 2 This is a schematic diagram of the protective mechanism in an embodiment of an unmanned sanitation equipment and its usage method according to the present invention;
[0025] Figure 3 This is a schematic diagram of the cooperation between the guide rod and the guide cylinder in an embodiment of an unmanned sanitation equipment and its usage method according to the present invention;
[0026] The symbols for the main components are explained below:
[0027] 1. Vehicle body;
[0028] 21. Drive wheel; 22. Support caster;
[0029] 3. Cleaning brush;
[0030] 4. Suction head;
[0031] 5. Storage barrels;
[0032] 6. Photovoltaic panels;
[0033] 71. Front-end distance sensor; 72. Side-end distance sensor; 73. Rear-end distance sensor;
[0034] 8. Speaker;
[0035] 9. Protective mechanism; 91. Bellows ring; 911. Top plate; 912. Folding plate; 913. Bottom plate; 92. Guide rod; 921. Top plate; 922. Electromagnet; 93. Guide cylinder; 931. Guide cavity; 932. Magnetic body; 94. Compression spring. Detailed Implementation
[0036] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0037] like Figure 1-3 As shown, an unmanned sanitation equipment of the present invention includes a sweeping brush 3 installed on the bottom surface of the vehicle body 1. The vehicle body 1 is in the shape of a right triangle. A photovoltaic panel 6 is laid on the inclined surface of the vehicle body 1. A protective mechanism 9 is provided at the bottom skirt of the vehicle body 1 to prevent foreign objects larger than the standard size from entering the bottom of the vehicle body 1.
[0038] The protective mechanism 9 includes a bellows ring 91 distributed around the edge of the vehicle body 1, and a guide cylinder 93, a guide rod 92, and a compression spring 94 located inside the bellows ring 91. The bellows ring 91 has a top plate 911, a bottom plate 913, and a folding piece 912 connected between the top plate 911 and the bottom plate 913. The guide cylinder 93 is fixedly connected to the upper surface of the bottom plate 913, and the guide rod 92 is fixedly connected to the lower surface of the top plate 911. The guide cylinder 93 and the guide rod 92 are inserted into each other. The compression spring 94 is sleeved on the outer ring of the guide rod 92 and the guide cylinder 93. The upper end of the compression spring 94 is fixedly connected to the guide rod 92, and the lower end of the compression spring 94 is fixedly connected to the guide cylinder 93.
[0039] The guide rod 92 is equipped with an electromagnet 922, and the bottom of the guide cavity 931 of the guide tube 93 is equipped with a magnetic body 932.
[0040] In this embodiment:
[0041] To prevent moving objects, animals, or mischievous children from reaching under the vehicle body, a protective mechanism 9 is installed at the skirt edge of the bottom of the vehicle body 1.
[0042] In the protective mechanism 9, the bellows ring 91 is opened by the compression spring 94, the top plate 911 and the bottom plate 913 move in opposite directions, the folding plate 912 is stretched, and fills the space between the lower edge of the vehicle body 1 and the ground, thereby preventing moving foreign objects, animals, and naughty children from probing into the bottom of the vehicle body 1. The position of the compression spring 94 is regulated by the guide rod 92 and the guide cylinder 93. At this time, the sweeping brush 3 can sweep the dust on the ground.
[0043] To achieve the desired size for screening ground debris and avoid the sweeper stopping due to card blockage, the lower part of the bellows ring 91, i.e., the height of the base plate 913, is adjustable, thus reserving a certain amount of space for debris to pass through. Specifically, when the electromagnet 922 is not working, the compression spring 94 is at its minimum compression, the bellows ring 91 is fully extended, and the base plate 913 needs to move upward. When the folding plate 912 retracts, the electromagnet 922 is energized, generating magnetic force. The electromagnet 922 and the magnetic body 932 are attracted to each other, and the guide cylinder 93 where the magnetic body 932 is located is attracted upward by the magnetic force. Under the guidance of the guide rod 92, the guide cylinder 93 drives the base plate 913 upward until the compression spring 94 is further compressed, generating sufficient elastic force to counteract the magnetic force.
[0044] Furthermore, by adjusting the amount of current flowing through the electromagnet 922, different magnetic forces can be obtained, causing the substrate 913 to rise to different distances. This allows for height adjustment between the substrate and the ground, thus enabling the screening of waste by size.
[0045] Preferably, the bottom of the vehicle body 1 is supported by three casters, with the casters arranged in an isosceles triangle. This structural design, with the casters arranged in a triangular shape, saves more space at the bottom, leaving more room for installing the sweeping brush 3. In practice, other support structures for the vehicle body 1 can also be considered depending on the specific circumstances.
[0046] Preferably, the caster includes one front-mounted, non-powered support caster 22 and two rear-mounted, independently powered drive wheels 21. The lower end of the vehicle body 1 is the front end, and the higher end of the vehicle body 1 is the rear end. With this structural design, the drive wheels 21 are independent of each other, and the two drive wheels 21 can perform left turns, right turns, forward movement, and backward movement. In practice, other structural shapes of the caster can also be considered depending on the specific circumstances.
[0047] Preferably, the sweeping brush 3 is positioned between the support caster 22 and the drive wheel 21, and distributed on both sides of the support caster 22. This structural design allows the sweeping brush 3 to effectively utilize the large remaining space on both sides of the support caster 22 for symmetrical arrangement. In practice, other distribution forms of the sweeping brush 3 can also be considered depending on the specific circumstances.
[0048] Preferably, a suction head 4 is also installed on the bottom surface of the vehicle body 1. The suction head 4 is located between the two sweeping brushes 3. The suction head 4 is connected to the storage tank 5 via a hose. The storage tank 5 is connected to the adsorption motor. With this structural design, the adsorption motor generates suction by creating a vacuum. The suction head 4 adsorbs the garbage on the ground and the garbage collected by the sweeping brushes 3. The garbage is stored in the storage tank 5 for centralized placement. In practice, other garbage adsorption structures can also be considered depending on the specific situation.
[0049] Preferably, a front distance sensor 71 is provided on the front side of the vehicle body 1, a rear distance sensor 73 is provided on the rear side of the vehicle body 1, and side distance sensors 72 are provided on the left and right sides of the vehicle body 1. With this structural design, the front distance sensor 71 is used to detect the distance of the vehicle body 1 from obstacles in front, the side distance sensors 72 are used to detect the distance of the vehicle body 1 from obstacles on the sides, and the rear distance sensor 73 is used to detect the distance of the vehicle body 1 from obstacles behind. In practice, other distance detection structures can also be considered depending on the specific circumstances.
[0050] Preferably, the top of the vehicle body 1 is equipped with a speaker 8 that plays warning voice messages. This structural design allows the speaker 8 to play warning voice messages to alert pedestrians in the vicinity, preventing them from colliding with the vehicle body 1 when they are walking with their heads down. At the same time, the speaker 8 can also play other voice messages, such as soothing music, to improve the public environment. In fact, other warning structures can also be considered depending on the specific circumstances.
[0051] Preferably, the input current of the electromagnet 922 is adjustable. This structural design allows the electromagnet 922 to generate different magnitudes of attraction force depending on the current. In practice, other attraction force adjustments can also be considered depending on the specific situation.
[0052] Preferably, the upper end of the guide rod 92 is provided with a top plate 921 for limiting and mounting. With this structural design, the top plate 921 can fix the guide rod 92 and abut against the end of the compression spring 94, and can also abut against the guide cylinder 93 when the guide rod 92 moves downward relative to the guide cylinder 93, thus completing the downward limiting. In fact, other structural shapes of the guide rod 92 can also be considered according to specific circumstances.
[0053] The present invention also provides a method for using sanitation equipment, which performs sanitation work using the aforementioned unmanned sanitation equipment.
[0054] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.
Claims
1. An unmanned sanitation equipment, comprising a sweeping brush (3) installed on the underside of a vehicle body (1), characterized in that: The vehicle body (1) is a right triangle in shape. Photovoltaic panels (6) are laid on the sloping surface of the vehicle body (1). A protective mechanism (9) is provided at the bottom skirt of the vehicle body (1) to prevent foreign objects larger than the standard size from entering the bottom of the vehicle body (1). The protective mechanism (9) includes a bellows ring (91) distributed around the edge of the vehicle body (1), a guide cylinder (93), a guide rod (92), and a compression spring (94) located inside the bellows ring (91). The bellows ring (91) is provided with a top plate (911), a bottom plate (913), and a folding piece (912) connected between the top plate (911) and the bottom plate (913). The guide cylinder (93) is fixedly connected to the upper surface of the bottom plate (913), and the guide rod (92) is fixedly connected to the lower surface of the top plate (911). The guide cylinder (93) and the guide rod (92) are inserted into each other. The compression spring (94) is sleeved on the outer ring of the guide rod (92) and the guide cylinder (93). The upper end of the compression spring (94) is fixedly connected to the guide rod (92), and the lower end of the compression spring (94) is fixedly connected to the guide cylinder (93). The guide rod (92) is equipped with an electromagnet (922), and the bottom of the guide cavity (931) of the guide tube (93) is equipped with a magnetic body (932).
2. The unmanned sanitation equipment according to claim 1, characterized in that: The bottom of the vehicle body (1) is supported by three casters, which are arranged in an isosceles triangle.
3. The unmanned sanitation equipment according to claim 2, characterized in that: The casters include a front non-powered support caster (22) and two rear independently powered drive wheels (21). The lower end of the vehicle body (1) is the front end, and the upper end of the vehicle body (1) is the rear end.
4. The unmanned sanitation equipment according to claim 3, characterized in that: The cleaning brush (3) is positioned between the support caster (22) and the drive wheel (21), and is distributed on the left and right sides of the support caster (22).
5. The unmanned sanitation equipment according to claim 4, characterized in that: The bottom surface of the vehicle body (1) is also provided with a suction head (4), which is located between two cleaning brushes (3). The suction head (4) is connected to the storage tank (5) through a hose, and the storage tank (5) is connected to the adsorption motor.
6. The unmanned sanitation equipment according to claim 1, characterized in that: The front side of the vehicle body (1) is provided with a front distance sensor (71), the rear side of the vehicle body (1) is provided with a rear distance sensor (73), and the left and right sides of the vehicle body (1) are provided with side distance sensors (72).
7. The unmanned sanitation equipment according to claim 6, characterized in that: The top of the vehicle body (1) is equipped with a speaker (8) that plays warning voice messages.
8. The unmanned sanitation equipment according to claim 1, characterized in that: The input current of the electromagnet (922) is adjustable.
9. The unmanned sanitation equipment according to claim 1, characterized in that: The upper end of the guide rod (92) is provided with a top plate (921) for limiting and installing.
10. A method of using sanitation equipment, characterized in that: Sanitation work is carried out using an unmanned sanitation equipment as described in any one of claims 1 to 9.