A cleaning device for a cleaning robot

Abstract

The utility model relates to cleaning robot technology discloses a cleaning device of cleaning robot, it includes lower bottom unit, upper shell unit, mechanical arm unit and cleaning unit, the mechanical arm unit includes mechanical arm body and connecting end, the cleaning unit with connecting end magnetic suction cooperation connects, the cleaning unit includes cleaning spray head subassembly, the cleaning spray head subassembly includes first spray head and deflectable second spray head. Through setting first spray head and deflectable second spray head, the flexibility and coverage of cleaning device have been improved significantly. First spray head is responsible for the cleaning of conventional large area, and the second spray head controlled by the drive motor can flexibly adjust the angle, accurately aim at and clean the cleaning blind area of traditional cleaning robot such as wall skirting line gap, furniture bottom edge, closestool base periphery etc.

Description

Technical Field

[0001] This utility model relates to cleaning robot technology, and more particularly to a cleaning device for a cleaning robot. Background Technology

[0002] With the rapid development of smart home technology, cleaning robots have become common cleaning tools in modern homes and commercial environments. Existing cleaning robots are typically equipped with fixed cleaning devices, such as roller brushes, suction nozzles, or simple water spray systems, for performing floor cleaning tasks. However, these traditional cleaning devices have certain limitations.

[0003] Most cleaning robots have fixed nozzles with non-adjustable spray angles and directions, making it difficult to effectively cover complex surfaces and narrow crevices during cleaning. For example, when cleaning hard-to-reach areas such as the junction of walls and floors, the bottom edges of furniture, and around toilet bases, fixed nozzles often fail to accurately spray water or cleaning solution onto the target locations, leaving cleaning blind spots and affecting the overall cleaning effect.

[0004] Currently, the cleaning modules of cleaning robots are mostly connected to the robot body using mechanical clips or threads, which makes disassembly and installation cumbersome and inconvenient for maintenance and replacement. Furthermore, during cleaning operations, the cleaning modules are prone to loosening or shifting due to robot movement and the reaction force of the nozzles, leading to unstable connections and further reducing cleaning efficiency.

[0005] Some high-end cleaning robots attempt to use robotic arm structures to improve cleaning flexibility, but the connection mechanism between the robotic arm and the cleaning unit is often complex and unreliable, lacking an effective locking mechanism, which may lead to disconnection during high-speed movement or high-intensity cleaning tasks.

[0006] Therefore, there is an urgent need in this field for a new type of cleaning robot cleaning device that can achieve rapid and stable connection of cleaning units and has a flexible and adjustable nozzle system to cope with various complex cleaning scenarios and improve cleaning coverage and efficiency. Utility Model Content

[0007] Based on the above-mentioned technical problems, this utility model proposes a cleaning device for a cleaning robot.

[0008] The technical solution of this utility model is implemented as follows: A cleaning device for a cleaning robot includes a lower base unit, an upper shell unit, a robotic arm unit, and a cleaning unit. The robotic arm unit comprises a robotic arm body and a connecting end, and the cleaning unit is magnetically connected to the connecting end. The cleaning unit includes a cleaning nozzle assembly, which includes a first nozzle and a deflectable second nozzle.

[0009] Preferably, the connecting end includes an end shaft, one end of which is provided with an extension plate, and one side of the extension plate is provided with a first electromagnetic block.

[0010] Preferably, the connecting end further includes a locking shaft coaxially arranged with the end shaft, and at least one positioning pin is provided on one circumferential side of the locking shaft, and a plurality of locking ball grooves are provided circumferentially at equal intervals on the outer surface of the locking shaft.

[0011] Preferably, the cleaning nozzle assembly includes a base and an end block slidably connected to the base. The end block has a locking groove in the middle, which is sleeved with the locking shaft. A positioning hole is provided on one side of the locking groove, which cooperates with the positioning pin to restrict the circumferential rotation of the end block.

[0012] Preferably, a second electromagnetic block is disposed above the end block, and the second electromagnetic block attracts the first electromagnetic block to restrict the sliding of the end block axis.

[0013] Preferably, the inner diameter of the locking groove is provided with a plurality of locking beads, which cooperate with the locking bead groove to assist in locking the connection.

[0014] Preferably, the cleaning nozzle assembly further includes a rod body, a water inlet is provided on one side of the rod body, a first nozzle is provided at the end of the rod body, a nozzle base is provided on one side of the first nozzle, and a second nozzle is provided at one end of the nozzle base.

[0015] Preferably, a drive motor is integrated within the nozzle base, and the drive motor is used to control the deflection of the second nozzle.

[0016] The cleaning device of this cleaning robot, which implements the present invention, has the following beneficial effects: By employing a multi-layered locking mechanism—primarily magnetic attraction between the connection end and the cleaning unit, supplemented by locating pins and holes to prevent circumferential rotation, and locking beads and slots for auxiliary locking—rapid connection and separation between the cleaning unit and the robotic arm are achieved. This method simplifies and extricates the cleaning unit, facilitating maintenance and replacement, and effectively prevents loosening or displacement caused by robot movement or nozzle reaction forces, ensuring the stability and reliability of the cleaning process.

[0017] By incorporating a first nozzle and a deflectable second nozzle, the flexibility and coverage of the cleaning device are significantly improved. The first nozzle is responsible for cleaning large, regular areas, while the second nozzle, controlled by a drive motor, can flexibly adjust its angle to precisely target and clean blind spots of traditional cleaning robots, such as gaps in baseboards, the bottom edges of furniture, and the area around toilet seats. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the cleaning device of this utility model; Figure 2 This is a partial structural schematic diagram of the cleaning device of this utility model; Figure 3 This is a partial structural schematic diagram of the cleaning device of this utility model; Figure 4 This is a schematic diagram of the structure of the connecting end of this utility model; Figure 5 This is a schematic diagram of the cleaning nozzle assembly of this utility model; Figure 6 This is an exploded view of the cleaning nozzle assembly of this utility model; Figure 7 This is a partial cross-sectional view of the cleaning nozzle assembly of this utility model; Figure 8 This is a partial structural schematic diagram of the cleaning nozzle assembly of this utility model.

[0019] The reference numerals in the attached drawings are as follows: 10-lower base unit, 20-upper shell unit, 30-robotic arm unit, 31-robotic arm body, 32-connecting end, 321-end shaft, 322-extension plate, 323-locking shaft, 324-positioning pin, 325-locking bead groove, 326-first electromagnetic block, 40-cleaning unit, 41-water tank, 42-pump body, 43-first conduit, 44-second conduit, 45-cleaning nozzle assembly, 451-base, 452-end block, 453-locking groove, 454-positioning hole, 455-second electromagnetic block, 4511-locking bead, 457-rod, 458-water inlet, 459-first nozzle, 4510-nozzle base, 4512-second nozzle. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Reference Figures 1 to 8 As shown, the cleaning device for a cleaning robot according to this utility model includes a lower base unit 10, an upper shell unit 20, a robotic arm unit 30, and a cleaning unit 40. The lower base unit 10 is equipped with motor-controlled drive wheels to move the cleaning robot to the desired cleaning position.

[0022] The upper shell unit 20 is installed above the lower bottom unit 10, and the robotic arm unit 30 is located on one side of the upper shell unit 20. The cleaning unit 40 is magnetically connected to the robotic arm unit 30.

[0023] Furthermore, the robotic arm unit 30 includes a robotic arm body 31 and a connecting end 32. The connecting end 32 is magnetically engaged with the cleaning unit 40. The connecting end 32 includes an end shaft 321, one end of which is provided with an extension plate 322, and one side of the extension plate 322 is provided with a first electromagnetic block 326.

[0024] In this embodiment, a locking shaft 323 is coaxially arranged with the end shaft 321, and at least one positioning pin 324 is provided on one circumferential side of the locking shaft 323. A plurality of bead-locking grooves 325 are provided circumferentially at equal intervals on the outer surface of the locking shaft 323.

[0025] Furthermore, the cleaning unit 40 includes a water tank 41, and a pump body 42 is provided on the outside of the water tank 41. The pump body 42 is connected to the cleaning nozzle assembly 45 through a first conduit 43 and a second conduit 44.

[0026] Among them, refer to again Figures 5 to 8 As shown, the cleaning nozzle assembly 45 includes a base 451, on which an end block 452 that mates with the connecting end 32 is slidably connected.

[0027] An engagement groove 453 is provided in the middle of the end block 452, which is sleeved with the engagement shaft 323. A positioning hole 454 is provided on one side of the engagement groove 453, which cooperates with the positioning pin 324 to restrict the circumferential rotation of the end block 452. A second electromagnetic block 455 is provided above the end block 452, which is attracted to the first electromagnetic block 326 to restrict the sliding of the end block 452 along its axis.

[0028] The inner diameter of the locking groove 453 is provided with a plurality of locking beads 4511, which cooperate with the locking bead groove 325. A rod 457 is also provided on one side of the end block 452, and a water inlet 458 is provided on one side of the rod 457, which is connected to the second conduit 44.

[0029] A first nozzle 459 is provided at the end of the rod 457. A nozzle base 4510 is provided on one side of the first nozzle 459. A deflectable second nozzle 4512 is provided at one end of the nozzle base 4510. The nozzle base 4510 integrates a drive motor, which is used to control the deflection of the second nozzle 4512. The second nozzle 4512 is used to clean gaps that the first nozzle 459 cannot clean.

[0030] Preferably, both the first electromagnetic block 326 and the second electromagnetic block 455 are provided with a controller, which is used to control whether the first electromagnetic block 326 and the second electromagnetic block 455 are energized and the electromagnetic strength of the first electromagnetic block 326 and the second electromagnetic block 455.

[0031] In this embodiment, the cleaning robot moves to the target cleaning area by relying on the drive wheels controlled by the motor inside the bottom unit 10.

[0032] The connecting end 32 at the front end of the robotic arm unit 30 is quickly connected to the cleaning unit 40 via magnetic attraction. The engaging shaft 323 of the connecting end 32 is inserted into the engaging groove 453 of the upper end block 452 of the cleaning unit 40. Simultaneously, the positioning pin 324 on the engaging shaft 323 engages with the positioning hole 454 on the end block 452 to prevent circumferential rotation of the cleaning unit 40. When energized, the first electromagnetic block 326 on the connecting end 32 and the second electromagnetic block 455 on the end block 452 generate a magnetic attraction force, tightly attracting them and restricting the sliding of the end block 452 along its axial direction.

[0033] In addition, the locking ball 4511 provided in the locking groove 453 cooperates with the locking ball groove 325 on the surface of the locking shaft 323 to further lock the connection and ensure stability during cleaning operations.

[0034] The liquid in the water tank 41 of the cleaning unit 40 is pumped out by the pump body 42 and delivered to the cleaning nozzle assembly 45 via the first conduit 43 and the second conduit 44. The liquid enters through the water inlet 458 on the rod body 457 and is finally sprayed out from the nozzle.

[0035] The cleaning nozzle assembly 45 is equipped with two nozzles. The first nozzle 459 is used for cleaning regular flat surfaces. The second nozzle 4512 is mounted on the nozzle base 4510 and controlled by a drive motor integrated in the base. It can flexibly deflect its angle to clean crevices and complex contour surfaces that the first nozzle 459 cannot reach.

[0036] Specifically, the first nozzle 459, serving as the main nozzle, is fixed to the end of the rod 457 and is primarily responsible for basic cleaning of large areas and regular flat surfaces. It is used to clean large open areas such as floors and tiles, continuously spraying water or cleaning solution to wet and rinse the surface, preparing it for subsequent scrubbing or scraping. When dealing with areas with slightly adhered stains, the first nozzle 459 can perform a large-area pre-rinse, softening the dirt and improving overall cleaning efficiency. Due to its relatively fixed position and spray angle, it is ideal for tasks requiring even water spraying or disinfection, ensuring that the cleaning medium covers the entire target area.

[0037] The second nozzle 4512 is a deflectable auxiliary nozzle controlled by a drive motor integrated within the nozzle base 4510, specifically designed to handle narrow and complex areas that the first nozzle 459 cannot effectively reach.

[0038] The second nozzle 4512 can be deflected at a certain angle to accurately spray water onto the junction of the wall and the floor, removing dust and stains accumulated in the gaps of the baseboard.

[0039] When the robot cleans under sofas, cabinets, or refrigerators, the second nozzle 4512 can be tilted upwards or downwards to rinse the contact points between the furniture legs and the floor or the bottom edges. When cleaning the bathroom, the second nozzle 4512 can be tilted to powerfully rinse hard-to-reach areas prone to mold growth, such as the edges of the toilet base and the seams between the sink and the wall.

[0040] For textured or uneven surfaces, the second nozzle 4512 can be adjusted to ensure that the water flow can impact the inside of the groove vertically or at the optimal angle, achieving efficient cleaning.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cleaning device for a cleaning robot, comprising a lower base unit (10), an upper shell unit (20), a robotic arm unit (30), and a cleaning unit (40), characterized in that, The robotic arm unit (30) includes a robotic arm body (31) and a connecting end (32). The cleaning unit (40) is magnetically connected to the connecting end (32). The cleaning unit (40) includes a cleaning nozzle assembly (45), which includes a first nozzle (459) and a deflectable second nozzle (4512).

2. The cleaning device for the cleaning robot according to claim 1, characterized in that, The connection end (32) includes an end shaft (321), one end of which is provided with an extension plate (322), and one side of the extension plate (322) is provided with a first electromagnetic block (326).

3. The cleaning device for the cleaning robot according to claim 2, characterized in that, The connecting end (32) also includes a locking shaft (323) coaxially arranged with the end shaft (321). The locking shaft (323) has at least one positioning pin (324) on one side of the circumferential direction, and the outer surface of the locking shaft (323) has a plurality of locking bead grooves (325) arranged circumferentially at equal intervals.

4. The cleaning device for the cleaning robot according to claim 3, characterized in that, The cleaning nozzle assembly (45) includes a base (451) and an end block (452) slidably connected to the base (451). The end block (452) has a locking groove (453) in the middle, which is sleeved with the locking shaft (323). A positioning hole (454) is provided on one side of the locking groove (453), which cooperates with the positioning pin (324) to restrict the circumferential rotation of the end block (452).

5. The cleaning device for the cleaning robot according to claim 4, characterized in that, A second electromagnetic block (455) is disposed above the end block (452). The second electromagnetic block (455) attracts the first electromagnetic block (326) to restrict the sliding of the axis of the end block (452).

6. The cleaning device for the cleaning robot according to claim 4, characterized in that, The inner diameter of the locking groove (453) is provided with a number of locking beads (4511), which cooperate with the locking bead groove (325) to assist in locking the connection.

7. The cleaning device for the cleaning robot according to claim 4, characterized in that, The cleaning nozzle assembly (45) also includes a rod (457), a water inlet (458) is provided on one side of the rod (457), a first nozzle (459) is provided at the end of the rod (457), a nozzle base (4510) is provided on one side of the first nozzle (459), and a second nozzle (4512) is provided at one end of the nozzle base (4510).

8. The cleaning device for the cleaning robot according to claim 7, characterized in that, The nozzle base (4510) integrates a drive motor, which is used to control the deflection of the second nozzle (4512).

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