Atomization spraying device and cleaning robot

Abstract

The utility model discloses an atomizing spraying device and a cleaning robot and relates to the technical field of intelligent cleaning equipment. The atomizing and spraying device comprises a water tank, water spraying openings are formed in the two ends of the water tank, piezoelectric ceramic micropore atomizing pieces are arranged at the water spraying openings, a partition plate is arranged in the water tank, and the partition plate is configured to be capable of partitioning water in the water tank when the piezoelectric ceramic micropore atomizing pieces at the two ends of the water tank are located at different heights. Therefore, the water body pressure applied to the piezoelectric ceramic micropore atomizing sheet at a lower position is reduced. The partition plate is arranged in the water tank, so that the pressure applied to the atomizing sheet at the lower position by water can be reduced, and the phenomenon that the atomizing sheet leaks due to the action of water pressure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent cleaning equipment, in particular to an atomizing spraying device and a cleaning robot. Background Art

[0002] Cleaning robots (such as window cleaning robots) usually have a water spraying device installed in the body. Spraying water onto the glass surface through the water spraying device can better help remove dirt on the glass surface. Piezoelectric ceramic microporous atomizing sheets (referred to as "atomizing sheets" for short) have been commonly used in various medical devices and humidifiers in the past, and have also been applied in cleaning robots in recent years. The water mist generated by atomization can evenly wet the glass surface. Existing cleaning robots usually have atomizing sheets installed at both ends of the machine. When the machine moves horizontally (left or right) along the glass surface, one of the atomizing sheets at these two ends will be located at the front end of the machine and can humidify the area in front of the machine. When the machine moves downward, one of the atomizing sheets at these two ends will be located at the lower end of the machine and can humidify the area below the machine. When the machine moves upward, the atomizing sheets at these two ends are located at the upper and lower ends of the machine and neither of them works.

[0003] However, in order to make the device structure more compact and the volume smaller, most existing cleaning robots do not have a water supply pump or valve installed in the water supply pipeline, but rely on the self-pressure of the water body in the water tank to supply water to the water spraying port, and basically all the atomizing sheets are connected to the same water tank. Since there are many micropores on the atomizing sheet installed at the water spraying port, under the action of water pressure, even when the atomizing sheet is not working, water will leak from the micropores to the water outlet surface of the atomizing sheet and accumulate, hindering its normal water spraying and affecting the atomizing spraying effect. Especially when the machine moves vertically along the window glass surface, the atomizing sheet located at the lower end of the machine (i.e., the lower end of the water tank) will be subjected to greater water pressure (almost the pressure of the entire water body in the water tank), exacerbating the leakage problem. Summary of the Utility Model

[0004] One of the purposes of the utility model is to provide an atomizing spraying device which can reduce the pressure exerted by the water body in the water tank on the lower atomizing sheet when the cleaning robot moves vertically, thereby reducing leakage.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an atomizing spraying device, including a water tank, water spraying ports are arranged at both ends of the water tank, piezoelectric ceramic microporous atomizing sheets are arranged at the water spraying ports, a partition is arranged in the water tank, and the partition is configured to separate the water body in the water tank when the piezoelectric ceramic microporous atomizing sheets at both ends of the water tank are at different heights, so as to reduce the water body pressure exerted on the piezoelectric ceramic microporous atomizing sheet at the lower position.

[0006] Further, a water inlet is provided on the water tank and is equipped with a plug for blocking the water inlet. At least a part of the partition is located at the water inlet so that the water inlet can communicate with each chamber separated by the partition in the water tank.

[0007] Further, a step that hinders the flow of water is formed on the inner wall of the water tank between the partition and the water spray port.

[0008] Further, a flow blocking piece that hinders the flow of water is provided inside the water tank.

[0009] Further, the flow blocking piece is arranged around the inner wall of the water tank and forms a channel through which water can pass.

[0010] Further, a fixed housing is provided at the outer end of the piezoelectric ceramic microporous atomization sheet. The fixed housing is provided with a conical or horn-shaped diffusion hole at a position corresponding to the piezoelectric ceramic microporous atomization sheet.

[0011] Another object of the present invention is to provide a cleaning robot, which includes a body and the above-mentioned atomization spraying device provided on the body.

[0012] Further, the piezoelectric ceramic microporous atomization sheets at both ends of the water tank are located at both ends of the body (that is, the left and right ends when the body is placed horizontally, and the upper and lower ends when the body is placed vertically).

[0013] In the present invention, by providing a partition in the water tank, when the atomization sheets (i.e., piezoelectric ceramic microporous atomization sheets) at both ends of the water tank are at different heights, especially when the water tank is placed vertically, the partition can separate the water body in the water tank, forming a barrier to part of the water body, reducing the water pressure (i.e., water pressure) exerted on the atomization sheet at the lower position (i.e., the lower position), thereby improving the phenomenon of leakage of the atomization sheet caused by the action of water pressure and ensuring the atomization spraying effect. Moreover, atomization sheets are provided at both ends of the water tank, so that wetting treatment of the target area can be achieved. When in use, no matter which end is at a lower position, the partition therein can reduce the water pressure received by the atomization sheet at this end through the blocking effect, thereby reducing leakage. Description of the Drawings

[0014] Figure 1 For the three-dimensional view of the cleaning robot in Embodiment 2 Figure 1 ;

[0015] Figure 2 For the three-dimensional view of the cleaning robot in Embodiment 2 Figure 2 ;

[0016] Figure 3 For the three-dimensional view of the atomization spraying device in Embodiment 1 Figure 1 ;

[0017] Figure 4For the three-dimensional view of the atomizing spraying device in Embodiment 1 Figure 2 ;

[0018] Figure 5 For the exploded view of the atomizing spraying device in Embodiment 1;

[0019] Figure 6 For the three-dimensional view of the atomizing spraying device in Embodiment 1 Figure 3 ;

[0020] Figure 7 For the structural schematic diagram of the box body in Embodiment 1 Figure 1 ;

[0021] Figure 8 For the structural schematic diagram of the box body in Embodiment 1 Figure 2 ;

[0022] Figure 9 For the structural schematic diagram of the box cover in Embodiment 1.

[0023] In the figure:

[0024] 1 - water tank, 1a - box body, 1a1 - water spraying port

[0025] 1a2 - water filling port, 1a3 - groove, 1b - box cover

[0026] 2 - atomizing sheet, 3 - partition board, 4 - plug

[0027] 5 - flow blocking sheet, 6 - fixed housing, 6a - diffusion hole

[0028] 7 - body, 8 - connecting seat, 9 - suction module

[0029] 10 - cleaning rag, 11 - crawler belt, 12 - cleaning brush. Detailed implementation manners

[0030] For the convenience of those skilled in the art to more clearly understand the concept of the present utility model, the following further describes it in combination with embodiments and drawings. Embodiment 1

[0031] As Figure 3-9As shown in the figure, this embodiment provides an atomizing spraying device, which includes a water tank 1 and atomizing sheets 2 (i.e., piezoelectric ceramic microporous atomizing sheets 2). The water tank 1 is used to supply water to the atomizing sheets 2, and the atomizing sheets 2 are used to convert water into an atomizing effect. Similar to existing atomizing spraying devices, in this embodiment, water spray nozzles 1a1 are provided at both ends of the water tank 1 (such as the left and right ends when placed horizontally, and the upper and lower ends when placed vertically), and atomizing sheets 2 are installed at the water spray nozzles 1a1. All the atomizing sheets 2 share a water tank 1. When the water tank 1 is placed horizontally and vertically, the water in the water tank 1 can flow to the water spray nozzles 1a1 by using its own water pressure, so as to achieve water supply. The difference is that in this embodiment, a partition plate 3 is provided in the water tank 1. When the atomizing sheets 2 at both ends of the water tank 1 are at different heights (especially when the water tank 1 is placed vertically, one end is higher and the other end is lower), this partition plate 3 can separate the water body in the water tank 1, forming a barrier to a part of the water body (such as the water body at the upper end of the water tank 1), reducing the water pressure exerted on the atomizing sheet 2 at the lower position, and improving the leakage problem caused by excessive water pressure. The partition plate 3 can be hermetically connected to the inner wall of the water tank 1, so as to completely isolate both ends of the water tank 1, making both ends of the water tank 1 become two independent water storage chambers.

[0032] In this embodiment, a water filling port 1a2 for filling water into the water tank 1 is provided on the water tank 1, and a sealing plug 4 (such as a rubber plug) for blocking the water filling port 1a2 is equipped, as shown in Figure 5-7 . The water tank 1 can be divided into multiple chambers by the partition plate 3, for example, two chambers. Each chamber separated by the partition plate 3 in the water tank 1 can be provided with a water filling port 1a2. In order to reduce the number of sealing plugs 4 used and save costs, only one water filling port 1a2 is provided on the water tank 1 in this embodiment, and the partition plate 3 passes through the water filling port 1a2 (that is, a part of the partition plate 3 is located at the water filling port 1a2), so that the water filling port 1a2 is divided into two parts by the partition plate 3. In this way, water can be filled into the chambers on both sides of the partition plate 3 through this water filling port 1a2 at the same time, and only one sealing plug 4 is needed to block the water filling port 1a2.

[0033] In order to further reduce the pressure exerted by the water body in the water tank 1 on the atomizing sheet 2 at the lower position (for example, the atomizing sheet 2 at the lower end of the water tank 1), this embodiment also adopts a method of increasing the water flow resistance. Specifically, steps that hinder the water flow are provided on the inner wall of the water tank 1, and these steps are located between the partition plate 3 and the water spray nozzle 1a1. For example, in the area of the water tank 1 where the water filling port 1a2 is provided, a groove 1a3 is provided in this area, as shown in Figure 8This groove 1a3 and the inner wall of the water tank 1 together form a stepped structure. When the water tank 1 is placed vertically, this stepped structure can prevent the water in the water tank 1 from flowing downward, thereby reducing the water pressure on the lower atomizing sheet 2, reducing the leakage risk and improving the atomizing effect. In addition to the aforementioned method of increasing the water flow resistance, this embodiment also provides a solution of arranging a flow blocking sheet 5 inside the water tank 1 as another means to reduce the water pressure on the lower-positioned atomizing sheet 2. The flow blocking sheet 5 can be horizontally arranged inside the water tank 1 or fixed on the inner wall of the water tank 1. The specific implementation manners include: the flow blocking sheet 5 can be arranged in an annular structure surrounding the inner wall of the water tank 1, aiming to increase the water flow resistance without affecting the water flow. The flow blocking sheet 5 can also serve as a reinforcing rib to enhance the strength of the water tank 1. A channel for water flow is formed in the middle of the annular flow blocking sheet 5. Of course, a number of through holes can also be provided on the flow blocking sheet 5, which allow water to flow inside the water tank 1 but slow down the water flow speed, thereby reducing the water pressure on the lower atomizing sheet 2, further reducing the possibility of leakage, and helping to maintain the uniformity of the atomizing effect. In addition, these two structures for increasing the water flow resistance can be applied simultaneously or separately.

[0034] In this embodiment, as Figure 3 , 4 shown, a fixed housing 6 is provided at the outer end of the atomizing sheet 2. The fixed housing 6 is provided with a conical or trumpet-shaped diffusion hole 6a at the position corresponding to the atomizing sheet 2, and this diffusion hole 6a helps to diffuse the water mist and improve the spraying efficiency. The atomizing sheet 2 can be fixed on the water tank 1 through a connecting seat 8, and the fixed housing 6 is connected to the connecting seat 8.

[0035] Next, the structure and principle of the atomizing sheet 2 will be briefly described. The atomizing sheet 2 (i.e., the piezoelectric ceramic microporous atomizing sheet 2) is composed of a metal sheet and a ceramic vibrating sheet. The metal sheet is usually made of stainless steel and is provided with one or more water outlet holes at the center. A recessed portion is provided at the center of the metal sheet, which appears convex when viewed from the lower end of the metal sheet, and the water outlet holes are arranged on this recessed portion. The ceramic vibrating sheet is arranged in a ring around the metal sheet and is bonded to the metal sheet through glue. The ceramic vibrating sheet can be connected to a power source through an electronic wire and generates high-frequency vibration after being energized. Working principle: The high-frequency vibration causes cavitation of water molecules at the water outlet holes, and after accumulation, tiny water mist particles are formed and ejected from the water outlet holes. In addition, a silica gel ring can be arranged on the outer periphery of the metal sheet to enhance fixation and provide a good sealing effect. It should be noted that the piezoelectric ceramic microporous atomizing sheet 2 in this embodiment is a commercially available product, and the structure and principle of the piezoelectric ceramic microporous atomizing sheet 2 are both prior arts. The improvement of this embodiment does not lie in this, so it will not be elaborated here.

[0036] In addition, as Figure 3-9As shown, the water tank 1 may include a box body 1a and a box cover 1b that are detachably connected to facilitate processing and assembly. The partition 3 can be directly provided on the box body 1a or the box cover 1b, or can be divided into two parts and respectively provided on the box body 1a and the box cover 1b. The same applies to other components (such as the flow blocking piece 5, etc.) or structures (such as the groove 1a3, the water spraying port 1a1, the water filling port 1a2, etc.) provided in the water tank 1. They can also be provided on the box body 1a or the box cover 1b, and usually are provided on the box body 1a. Embodiment 2

[0037] This embodiment provides a cleaning robot. Similar to existing cleaning robots, it also includes a body 7 and components such as a suction module 9, a cleaning element, a controller, and a traveling mechanism mounted on the body 7. Reference can be made to Figure 1 , 2 . Among them, the body 7 can be adsorbed on the surface to be cleaned (such as a window glass) under the negative pressure formed by the suction module 9. The cleaning element can be a cleaning cloth 10 fixed to the bottom of the body 7. The traveling mechanism can be a crawler structure or traveling wheels. The crawler structure usually includes a driving wheel and a crawler 11 mounted on the driving wheel. A cleaning brush 12 for cleaning the dirt on the crawler 11 can be further provided on the outer side of the crawler 11. The above suction module 9 includes, but is not limited to, a negative pressure fan or a vacuum pump. In addition, since the air duct, control circuit, and traveling mechanism of the cleaning robot involved in this embodiment are similar to those of existing cleaning robots, for the purpose of simplifying the description, the above content will not be elaborated further.

[0038] Different from existing cleaning robots, the cleaning robot of this embodiment further includes the atomizing spraying device of Embodiment 1, wherein the water tank 1 is installed on the body 7, and the atomizing sheets 2 are located at both ends of the body 7 (that is, the left and right ends when the machine is placed horizontally, and the upper and lower ends when the machine is placed vertically), so that when the machine moves horizontally and downward on the window glass surface, the atomizing sheets 2 can humidify the front area and the lower area. The atomizing sheets 2 can face the side of the body 7 in contact with the surface to be cleaned to ensure that the water mist can directly act on the target area. Taking the vertical movement of the machine as an example, when the cleaning robot moves downward along the glass surface, the water tank 1 is placed vertically and the water spray nozzles 1a1 at both ends are located at the upper and lower ends of the body 7, and the water in the water tank 1 is supplied to the lower water spray nozzle 1a1 by the pressure of the water body itself. When the water at the upper end of the water tank 1 flows to the partition plate 3, the partition plate 3 blocks it and makes it stay there, preventing the water body at the upper end from applying pressure to the atomizing sheet 2 at the lower end. When the water at the lower end of the water tank 1 flows to the lower water spray nozzle 1a1, the atomizing sheet 2 blocks it and makes it stay there. When the atomizing sheet 2 works, the water at the water spray nozzle 1a1 is converted into water mist and directly sprayed out through the diffusion holes 6a to wet the glass surface. Through the blocking effect of the partition plate 3, the water pressure received by the lower atomizing sheet 2 is greatly reduced, thereby reducing water leakage and the accumulation caused by leakage, and improving the atomizing spraying effect. In particular, when the cleaning robot moves upward along the glass surface and the atomizing sheets 2 at both ends do not work, through the blocking effect of the partition plate 3, the water pressure received by the lower atomizing sheet 2 can be reduced, thereby reducing leakage. Moreover, atomizing sheets 2 are provided at both ends of the machine (that is, both ends of the water tank 1), so that wetting treatment of the target area can be achieved. When in use, no matter which end is at a lower position, the partition plate 3 at this end can reduce the water pressure received by the atomizing sheet 2 at this end through the blocking effect, thereby reducing leakage.

[0039] The above embodiment is a preferred implementation scheme of the present utility model. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present utility model.

Claims

1. Atomizing spraying device, characterized in that: It includes a water tank (1), water spray nozzles (1a1) are provided at both ends of the water tank (1), a piezoelectric ceramic microporous atomization sheet (2) is provided at the water spray nozzles (1a1), a partition plate (3) is provided in the water tank (1), and the partition plate (3) is configured to separate the water body in the water tank (1) when the piezoelectric ceramic microporous atomization sheets (2) at both ends of the water tank (1) are at different heights, so as to reduce the water pressure applied to the piezoelectric ceramic microporous atomization sheet (2) at the lower position.

2. The atomizing spraying device according to claim 1, wherein: A water filling port (1a2) is provided on the water tank (1) and is equipped with a plug (4) for blocking the water filling port (1a2), and at least a part of the partition plate (3) is located at the water filling port (1a2), so that the water filling port (1a2) can communicate with each chamber separated by the partition plate (3) in the water tank (1).

3. The atomizing spraying device according to claim 2, wherein: Steps that hinder the flow of water are formed between the partition plate (3) and the water spray nozzles (1a1) on the inner wall of the water tank (1).

4. The atomizing spraying device according to any one of claims 1-3, characterized in that: A flow blocking sheet (5) that hinders the flow of water is provided inside the water tank (1).

5. The atomizing spraying device according to claim 4, characterized in that: The flow blocking sheet (5) is arranged around the inner wall of the water tank (1) and forms a channel through which water can pass.

6. The atomizing spraying device according to claim 1, wherein: A fixed housing (6) is provided at the outer end of the piezoelectric ceramic microporous atomization sheet (2), and a conical or horn-shaped diffusion hole (6a) is provided at the position of the fixed housing (6) corresponding to the piezoelectric ceramic microporous atomization sheet (2).

7. A cleaning robot, comprising a body (7), characterized in that: It further includes the atomization spraying device according to any one of claims 1-6 provided on the machine body (7).

8. The cleaning robot according to claim 7, characterized in that: The piezoelectric ceramic microporous atomization sheets (2) at both ends of the water tank (1) are located at both ends of the machine body (7).

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