A waterless dust collection multiple protection mechanism for commercial cleaning robots
By incorporating a dual filtration structure of dust collection bags and dust collection filter cartridges, along with a quick-release frame design, on commercial cleaning robots, the problem of negative pressure device damage caused by dust collection bag failure is solved, enabling continuous and stable operation and efficient maintenance of the robot.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI HAGONG AOTING INTELLIGENT TECH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-26
Smart Images

Figure CN224403570U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a waterless dust collection and multi-protection mechanism for commercial cleaning robots. Background Technology
[0002] In commercial spaces such as shopping malls, office buildings, and hotel lobbies, floor cleaning needs to balance efficiency and adaptability to different scenarios. Waterless cleaning solutions have become the mainstream choice for commercial cleaning robots because they do not rely on water sources and are suitable for various floor materials such as carpets and wooden floors. These robots achieve waterless dust collection through the principle of negative pressure adsorption. Their core structure is a dust collection device that uses negative pressure to generate suction, sucking dust, debris, hair, and other impurities from the floor into the dust collection box. The impurities are then filtered out by a filter component, and finally, clean air is discharged through the negative pressure device. The entire process requires no water, avoiding water stains or floor damage.
[0003] However, commercial cleaning robots operate in complex environments, handling large quantities of impurities of varying sizes daily. The dust collection bags operate under constant high loads, making them prone to failure due to wear, blockage, aging, or punctures by sharp impurities. Once the dust collection bags fail, unblocked impurities directly enter the negative pressure system (such as the negative pressure fan). Because commercial cleaning robots operate in compact spaces, and the negative pressure system has a more sophisticated structure, impurity intrusion can easily cause wear and jamming of the fan blades, leading to a drop in negative pressure or even shutdown, severely impacting the continuity of cleaning operations.
[0004] Therefore, a waterless dust collection and multi-protection mechanism for commercial cleaning robots is proposed to meet the high-load working requirements of commercial cleaning robots. Utility Model Content
[0005] This invention provides a waterless dust collection and multiple protection mechanism for commercial cleaning robots, which solves the technical problem that the failure of the filter components of existing dust collection devices will affect the normal operation of the negative pressure device.
[0006] To solve the above-mentioned technical problems, this utility model provides a waterless dust collection and multi-protection mechanism for commercial cleaning robots, including a filter box, a negative pressure device, a mounting base, a dust collection bag, a quick-release bracket, and a dust collection filter element; the negative pressure device is disposed on the filter box, the dust collection bag is snapped onto the mounting base, the mounting base is disposed on the filter box, the dust collection filter element is snapped onto the quick-release bracket, the quick-release bracket is disposed on the filter box, and the dust collection filter element is disposed at the air extraction end of the negative pressure device.
[0007] Preferably, the quick-release frame includes a mounting back plate, a movable plate, and a quick-release assembly; the mounting back plate is disposed on the inner wall of the filter box, one side of the movable plate is hinged to the mounting back plate, the quick-release assembly is disposed on the other side of the movable plate, and the dust collection filter element is disposed between the mounting back plate and the movable plate.
[0008] Preferably, the quick-release assembly includes a side plate, a fixed base, a sliding block, a lever, a guide post, and a return spring; the side plate is disposed on one side of the mounting back plate, and a slot is formed on the side plate; the fixed base is disposed on one side of the movable plate; the sliding block is movably mounted in the fixed base; the guide post is integrally formed on one side of the sliding block; a sliding groove is formed on one side of the fixed base; the lever is movably mounted in the sliding groove; the lever is disposed on one side of the sliding block; the return spring is movably sleeved on the surface of the guide post; both ends of the return spring abut against the inner wall of the fixed base and the side of the sliding block, respectively; and one end of the sliding block engages with the slot.
[0009] Preferably, the end of the sliding block that engages with the slot is wedge-shaped.
[0010] Preferably, the negative pressure device includes a mounting housing, a negative pressure fan, and an exhaust pipe. The mounting housing is disposed on the back of the filter box, the negative pressure fan is disposed in the mounting housing, the exhaust pipe is disposed at the exhaust end of the negative pressure fan, and the suction end of the negative pressure fan is provided with a suction pipe, which is connected to the filter box.
[0011] Preferably, one end of the exhaust pipe is located on the side of the dust collection filter element.
[0012] Preferably, the filter housing has an air inlet pipe on its side, and the air inlet pipe is located on one side of the mounting base.
[0013] Compared with related technologies, the waterless dust collection and multi-protection mechanism for commercial cleaning robots provided by this utility model has the following beneficial effects:
[0014] This utility model provides a waterless dust collection and multiple protection mechanism for commercial cleaning robots. It forms a dual filtration structure through a dust collection bag and a dust collection filter. The dust collection bag intercepts larger particulate impurities, while the dust collection filter performs secondary filtration of the gas. When the dust collection bag is worn, clogged, aged, or damaged and fails, it can effectively prevent impurities from entering the negative pressure device, avoid wear and jamming of the negative pressure fan blades, significantly improve the protection capability of the negative pressure device, and ensure the continuous and stable operation of the commercial cleaning robot.
[0015] This utility model provides a waterless dust collection and multiple protection mechanism for commercial cleaning robots. The design of the quick-release frame and quick-release components enables the rapid replacement of the dust collection filter element without the need for tools. The filter element can be installed and removed by simply turning the lever. The wedge-shaped structure of the sliding block further simplifies the operation. When the movable plate is closed, it can automatically lock, which greatly shortens the maintenance time, reduces labor costs, and adapts to the maintenance needs of high-frequency operations of commercial cleaning robots. Attached Figure Description
[0016] Figure 1This is a schematic diagram of the overall structure of the present invention. Figure 1 ;
[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;
[0018] Figure 3 This is a schematic diagram of the internal structure of the filter box of this utility model;
[0019] Figure 4 This is a schematic diagram of the quick-release bracket structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the dust collection filter element installation structure of this utility model;
[0021] Figure 6 This is an enlarged cross-sectional view of the quick-release component of this utility model.
[0022] The following are the labeling elements in the diagram: 1. Filter housing; 2. Mounting shell; 3. Mounting base; 4. Dust collection bag; 5. Quick-release bracket; 6. Dust collection filter element; 7. Inlet pipe; 8. Exhaust pipe; 9. Negative pressure fan; 91. Extraction pipe; 51. Mounting back plate; 52. Movable plate; 53. Quick-release assembly; 531. Side plate; 532. Slot; 533. Fixed base; 534. Sliding block; 535. Toggle block; 536. Guide post; 537. Return spring. Detailed Implementation
[0023] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.
[0024] Example 1
[0025] like Figure 1-6 As shown, this embodiment provides a waterless dust collection multi-protection mechanism for commercial cleaning robots, including a filter box 1, a negative pressure device, a mounting base 3, a dust collection bag 4, a quick-release bracket 5, and a dust collection filter element 6; the negative pressure device is disposed on the filter box 1, the dust collection bag 4 is snapped onto the mounting base 3, the mounting base 3 is disposed on the filter box 1, the dust collection filter element 6 is snapped onto the quick-release bracket 5, the quick-release bracket 5 is disposed on the filter box 1, and the dust collection filter element 6 is disposed at the air extraction end of the negative pressure device.
[0026] In this embodiment, the dust collection bag 4 and the dust collection filter element 6 form a dual filtration and protection structure. The dust collection bag 4 acts as a primary filtration component to intercept larger particulate impurities, while the dust collection filter element 6 acts as a secondary filtration component to further filter the gas filtered by the dust collection bag 4. In this way, even if the dust collection bag 4 is damaged or clogged, impurities can still be blocked from entering the negative pressure device through the dust collection filter element 6, thus achieving dual protection for the negative pressure device.
[0027] Among them, such as Figure 4As shown, the quick-release frame 5 includes a mounting back plate 51, a movable plate 52, and a quick-release assembly 53; the mounting back plate 51 is disposed on the inner wall of the filter box 1, one side of the movable plate 52 is hinged to the mounting back plate 51, the quick-release assembly 53 is disposed on the other side of the movable plate 52, and the dust collection filter element 6 is disposed between the mounting back plate 51 and the movable plate 52.
[0028] The quick-release bracket 5 is designed to enable the quick installation and removal of the dust collection filter element 6. It is connected to the mounting back plate 51 by the hinge of the movable plate 52 and the quick-release component 53, so that the replacement of the dust collection filter element 6 can be completed without complicated tools, simply by operating the quick-release component 53, which greatly improves the convenience of maintenance.
[0029] Among them, such as Figure 5 , 6 As shown, the quick-release assembly 53 includes a side plate 531, a fixed base 533, a sliding block 534, a lever 535, a guide post 536, and a return spring 537. The side plate 531 is located on one side of the mounting back plate 51, and a slot 532 is provided on the side plate 531. The fixed base 533 is located on one side of the movable plate 52. The sliding block 534 is movably installed in the fixed base 533. The guide post 536 is integrally formed on one side of the sliding block 534. A sliding groove is provided on one side of the fixed base 533. The lever 535 is movably installed in the sliding groove and is located on one side of the sliding block 534. The return spring 537 is movably sleeved on the surface of the guide post 536. The two ends of the return spring 537 abut against the inner wall of the fixed base 533 and the side of the sliding block 534, respectively. One end of the sliding block 534 is engaged with the slot 532.
[0030] The specific working process of the quick-release assembly 53 is as follows: In its natural state, the return spring 537 is in the extended state, pushing the sliding block 534 to move towards the slot 532, so that one end of the sliding block 534 is engaged in the slot 532, thereby locking the movable plate 52 and the mounting back plate 51 to ensure the stable installation of the dust collection filter element 6; when it is necessary to remove the dust collection filter element 6, the toggle block 535 is moved along the slide groove, the toggle block 535 drives the sliding block 534 to compress the return spring 537 and move towards the fixed seat 533, the sliding block 534 disengages from the slot 532, and the movable plate 52 can be rotated around the hinge axis to open, so that the old filter element can be taken out and the new filter element can be replaced; after the replacement is completed, the movable plate 52 is closed, and the sliding block 534 is re-engaged into the slot 532 under the elastic force of the return spring 537, completing the fixation.
[0031] The end of the sliding block 534 that engages with the slot 532 is wedge-shaped. This design allows the wedge-shaped surface of the sliding block 534 to automatically retract into the fixed seat 533 after contacting the edge of the slot 532 when the movable plate 52 is closed, eliminating the need for manual operation of the lever 535 and further simplifying the installation process.
[0032] The negative pressure device includes a mounting housing 2, a negative pressure fan 9, and an exhaust pipe 8. The mounting housing 2 is located on the back of the filter box 1. The negative pressure fan 9 is located in the mounting housing 2. The exhaust pipe 8 is located at the exhaust end of the negative pressure fan 9. The suction end of the negative pressure fan 9 is provided with a suction pipe 91, which is connected to the filter box 1.
[0033] The core function of the negative pressure device is to provide negative pressure suction inside the filter box 1. The suction force generated by the operation of the negative pressure fan 9 allows the dust-laden gas from the outside to enter the filter box 1 smoothly and pass through the filter structure. The filtered clean gas is then discharged through the exhaust pipe 8. The mounting housing 2 provides encapsulation, protection, and fixed support for the negative pressure fan 9.
[0034] One end of the exhaust pipe 91 is located on the side of the dust collection filter element 6. This arrangement ensures that the exhaust end of the negative pressure fan 9 directly draws out the clean gas filtered by the dust collection filter element 6, and avoids unfiltered gas being sucked into the negative pressure fan 9.
[0035] In this embodiment, an air inlet pipe 7 is provided on the side of the filter box 1. The air inlet pipe 7 is located on one side of the mounting base 3. Dust-laden gas can enter the interior of the filter box 1 through the air inlet pipe 7 and flow firstly through the dust collection bag 4 for primary filtration.
[0036] In this embodiment, the gas filtration process is as follows: After the dust-laden gas enters the filter housing 1 through the inlet pipe 7, it first passes through the dust collection bag 4 on the mounting base 3, where larger particles are trapped. The gas, after preliminary filtration, continues to flow towards the dust collection filter element 6, where the remaining fine impurities are intercepted. Finally, the gas that meets the cleanliness requirements is drawn into the negative pressure fan 9 through the exhaust pipe 91 and then discharged from the outside of the filter housing 1 through the exhaust pipe 8. During this process, the dual filtration structure ensures that even if the dust collection bag 4 fails, impurities will still be blocked by the dust collection filter element 6, effectively preventing the negative pressure fan 9 from being damaged by impurities.
[0037] In summary, this embodiment achieves multiple protections for the negative pressure device by setting up a dual filtration structure of dust collection bag 4 and dust collection filter element 6, fundamentally solving the problem of damage to the negative pressure device due to the failure of dust collection bag 4 when filtering alone; at the same time, the design of quick-release bracket 5 makes the replacement operation of dust collection filter element 6 simple and efficient, taking into account both protective performance and maintenance convenience, and meeting the actual needs of long-term stable operation of dust collection device.
Claims
1. A waterless dust collection multi-guard mechanism for a commercial cleaning robot, characterized by: It includes a filter housing, a negative pressure device, a mounting base, a dust collection bag, a quick-release bracket, and a dust collection filter element; the negative pressure device is mounted on the filter housing, the dust collection bag is snapped onto the mounting base, the mounting base is mounted on the filter housing, the dust collection filter element is snapped onto the quick-release bracket, the quick-release bracket is mounted on the filter housing, and the dust collection filter element is located at the air extraction end of the negative pressure device.
2. The waterless dust collection multi-protection mechanism for a commercial cleaning robot according to claim 1, wherein The quick-release frame includes a mounting back plate, a movable plate, and a quick-release assembly; the mounting back plate is disposed on the inner wall of the filter box, one side of the movable plate is hinged to the mounting back plate, the quick-release assembly is disposed on the other side of the movable plate, and the dust collection filter element is disposed between the mounting back plate and the movable plate.
3. The waterless dust collection multi-protection mechanism for a commercial cleaning robot according to claim 2, wherein, The quick-release assembly includes a side plate, a fixed base, a sliding block, a lever, a guide post, and a return spring. The side plate is located on one side of the mounting back plate and has a slot. The fixed base is located on one side of the movable plate. The sliding block is movably mounted in the fixed base. The guide post is integrally formed on one side of the sliding block. A sliding groove is located on one side of the fixed base. The lever is movably mounted in the sliding groove and is located on one side of the sliding block. The return spring is movably sleeved on the surface of the guide post. Both ends of the return spring abut against the inner wall of the fixed base and the side of the sliding block, respectively. One end of the sliding block engages with the slot.
4. The waterless dust collection and multi-protection mechanism for a commercial cleaning robot according to claim 3, characterized in that, The end of the sliding block that engages with the slot is wedge-shaped.
5. A waterless dust collection and multi-protection mechanism for commercial cleaning robots according to claim 1, characterized in that, The negative pressure device includes a mounting housing, a negative pressure fan, and an exhaust pipe. The mounting housing is located on the back of the filter box, the negative pressure fan is located in the mounting housing, the exhaust pipe is located at the exhaust end of the negative pressure fan, and the suction end of the negative pressure fan is provided with a suction pipe, which is connected to the filter box.
6. A waterless dust collection and multi-protection mechanism for commercial cleaning robots according to claim 5, characterized in that, One end of the exhaust pipe is located on the side of the dust collection filter element.
7. A waterless dust collection and multi-protection mechanism for commercial cleaning robots according to claim 1, characterized in that, The filter housing has an air inlet pipe on its side, which is located on one side of the mounting base.