Water spraying structure, spraying assembly and cleaning robot

Abstract

A water spraying structure, a spraying assembly and a cleaning robot relate to the technical field of cleaning equipment. The water spraying structure comprises an inner cover body and an outer cover body which are used for being installed at the water outlet end of the water spraying component, a notch capable of being opened and closed is formed in the front end of the inner cover body, the outer cover body is arranged on the outer side of the inner cover body in a sleeving mode, a gap allowing the notch to be opened is reserved, the front end of the outer cover body is in an arc shape, and a plurality of water outlet holes distributed along an arc are formed in the area, corresponding to the opening of the notch, of the outer cover body. According to the utility model, sprayed water can be diffused to two sides, so that the wetting area is enlarged, and the cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a water spraying structure, a spraying assembly and a cleaning robot. Background Art

[0002] In some cleaning robots, such as window cleaning robots, water spraying devices are usually equipped, such as nozzles connected to water tanks, for pre-wetting the glass surface in advance. This can reduce the cleaning difficulty and improve the cleaning effect. However, these water spraying devices are usually configured to spray directly forward, and due to size limitations, the spraying range is relatively small. This results in the sprayed water only covering a small part of the area covered by the cleaning cloth at the bottom of the machine. Especially the limitation in width makes the wetted area not wide enough when the machine wipes along the path once, thus affecting the cleaning effect. Summary of the Utility Model

[0003] One of the purposes of the utility model is to provide a water spraying structure that can make the sprayed water spread to both sides, thereby increasing the wetting area and improving the cleaning effect.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A water spraying structure, including an inner housing and an outer housing for installation at the water outlet end of a water spraying component. A switchable incision is provided at the front end of the inner housing. The outer housing is sleeved outside the inner housing and has a gap for the incision to open. The front end of the outer housing is arc-shaped and is provided with a plurality of water outlet holes distributed along an arc in the area corresponding to the opening of the incision, so that water can be sprayed in a fan shape.

[0005] Further, at least the front end of the inner housing is made of an elastic material, so that the incision at its front end can automatically open under the action of water pressure and automatically close under the action of resilience. Specifically, the inner housing is filled with water. When the water pressure rises, the front incision can automatically open, and when the water in the inner housing is lacking and the water pressure drops, the front incision can rebound and automatically close.

[0006] Further, the incision is strip-shaped, and the distribution area of the water outlet holes corresponds to the position of the incision of the inner housing.

[0007] Further, the radian of the distribution area of the water outlet holes is not less than 60 degrees.

[0008] Further, the outer housing is made of a hard material.

[0009] Another purpose of the utility model is to provide a spraying assembly, which includes a water spraying joint and the above-mentioned water spraying structure, and the inner housing and the outer housing are installed at the water outlet end of the water spraying joint.

[0010] Further, the spraying assembly further includes a water spraying trough box. An installation groove is provided at the rear end of the water spraying trough box, and the outer cover body is installed in the installation groove. Communication holes are provided in the installation groove corresponding to the distribution area of the water outlet holes. The front end of the water spraying trough box is provided with a diffusion trough having a V-shaped cross section. The communication holes communicate with the diffusion trough and are located at the narrow end on the rear side of the diffusion trough.

[0011] Further, the diffusion trough extends towards both sides of the water spraying trough box to form a strip shape.

[0012] In addition, the present utility model further provides a cleaning robot, which includes a machine body. The aforementioned spraying assembly is provided on the machine body, and the water spraying joint is connected to a water tank for supplying water and a driving pump for pumping and draining water.

[0013] The water spraying structure of the present utility model is improved by adding a double-layer cover body to the water spraying component. Specifically, the front end of the inner cover body is provided with an openable incision, and the outer cover body is sleeved outside the inner cover body and the front end is set to be arc-shaped. A plurality of water outlet holes are distributed along the arc on the arc-shaped front end. This structure enables the sprayed water to diffuse towards both sides in a fan shape, thereby achieving a wider spraying range and a larger wetting area. Even if the size of the water spraying device itself is not large, this water spraying structure can ensure that the area covered by the water spraying is at least equivalent to the covering width of the cleaning rag, or even wider, thereby significantly improving the cleaning effect of the cleaning robot during a single wiping process. Description of the Drawings

[0014] Figure 1 is a perspective view of the spraying assembly;

[0015] Figure 2 is an exploded view of the spraying assembly Figure 1 ;

[0016] Figure 3 is an exploded view of the spraying assembly Figure 2 ;

[0017] Figure 4 is a rear view of the water spraying trough box;

[0018] Figure 5 is a perspective view of the outer cover body;

[0019] Figure 6 is a perspective view of the cleaning robot, with the water delivery pipeline and the driving pump omitted in the figure.

[0020] In the figure:

[0021] 1 - spraying assembly, 1a - water spraying joint, 1b - inner cover body

[0022] 1b1 - incision, 1c - outer cover body, 1c1 - water outlet hole

[0023] 1d - Water spraying tank box, 1d1 - Installation groove, 1d2 - Communication hole

[0024] 1d3 - Diffusion tank, 2 - Machine body, 3 - Water tank Specific implementation manner

[0025] For the convenience of understanding by those skilled in the art, the present utility model will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation manner does not limit the present utility model Embodiment 1

[0026] As Figures 1 to 3 and Figure 5 shown, this embodiment provides a water spraying structure, which can be applied to the spraying assembly of a cleaning device (such as a window cleaning robot), and can make the sprayed water diffuse to both sides, forming a fan-shaped spraying effect, thereby increasing the wetting area of the surface to be cleaned and improving the cleaning effect

[0027] Specifically, the water spraying structure includes multiple layers of covers, such as a double-layer cover. The double-layer cover includes an inner cover 1b and an outer cover 1c. The inner cover 1b and the outer cover 1c are installed at the water outlet end of the water spraying component (such as a water spraying joint 1a or a nozzle) to control the water spraying direction and range. Among them, a cut 1b1 that can open and close is provided at the front end of the inner cover 1b. The cut 1b1 can be in a long strip shape, forming an opening and closing structure similar to a mouth. In order to enable the cut 1b1 at the front end of the inner cover 1b to automatically open and close, so that it is filled with water in the inner cover 1b and automatically opens when the water pressure rises, and automatically closes when the water in the inner cover 1b is insufficient and the water pressure drops, the front end of the inner cover 1b can be set as an elastic part. For example, the front end of the inner cover 1b can be made of an elastic material (such as silicone). Of course, the entire inner cover 1b can also be made of an elastic material. In this way, the cut 1b1 at the front end of the inner cover 1b can automatically open under the action of water pressure and automatically close by the rebounding action when the water pressure is insufficient. Specifically, when the water pressure in the inner cover 1b is sufficient, the cut 1b1 can automatically open and release the water in it for forward spraying. When the water in the inner cover 1b is insufficient and the water pressure is insufficient, the cut 1b1 can automatically close under the rebounding action to prevent the water in it from flowing out, which can play a certain role in preventing water leakage

[0028] In this embodiment, the outer housing 1c is sleeved outside the inner housing 1b, and an appropriate gap allowing the expansion of the inner housing 1b is reserved between them, so that the incision 1b1 can open in this gap. When the incision 1b1 opens, the upper and lower side walls of the inner housing 1b expand up and down and can abut against the inner wall of the outer housing 1c. A number of water outlet holes 1c1 are provided at the front end of the outer housing 1c in the area corresponding to the opening of the incision 1b1, so that the water inside can be sprayed out through the water outlet holes 1c1. In order to make the sprayed water form a fan-shaped spraying effect that expands to both sides, the front end of the outer housing 1c can be set in an arc shape, and these water outlet holes 1c1 are spaced along the arc (for example, the outer arc of the cross-section of the front end of the outer housing 1c), which is equivalent to these water outlet holes 1c1 forming an arc arrangement, so that the water can be sprayed out in a fan-shaped manner. Among them, these water outlet holes 1c1 are arranged at an included angle, and they are usually evenly distributed, and the included angle between adjacent water outlet holes 1c1 is the same. Of course, they can also be arranged at multiple angles to form the effect of spraying in different directions. Taking the arc arrangement of the water outlet holes 1c1 as an example, the distribution area of the water outlet holes 1c1 can correspond to the position of the incision 1b1 of the inner housing 1b. In this way, when the incision 1b1 is opened, the water coming out can be directly sprayed out through the water outlet holes 1c1. In order to make the water form a wide-angle spray, the radian of its distribution area can be set to not less than 60 degrees, such as 120 degrees, 150 degrees, etc. In addition, the outer housing 1c can be made of a hard material, such as metal materials like iron and stainless steel or other hard materials.

[0029] In the water spraying structure of this embodiment, the front end of the inner housing 1b is provided with an openable and closable incision 1b1, and the outer housing 1c is sleeved outside the inner housing 1b, and the front end is set in an arc shape, and a plurality of water outlet holes 1c1 are distributed along the arc on the arc-shaped front end. This structure enables the sprayed water to spread to both sides in a fan-shaped manner, thereby achieving a wider spraying range and a larger wetting area. Embodiment 2

[0030] As Figures 1 to 5 shown, this embodiment provides a spraying assembly 1, which includes a water spraying joint 1a and the water spraying structure of Embodiment 1. The inner housing 1b and the outer housing 1c in the water spraying structure are installed at the water outlet end of the water spraying joint 1a. The water sprayed out through the water spraying joint 1a can, under the action of the inner housing 1b and the outer housing 1c, make the sprayed water spread out to both sides, increasing the coverage area, rather than spraying directly forward as in the past.

[0031] The spraying assembly 1 of this embodiment further includes a water spraying trough box 1d installed at the front end of the water spraying joint 1a. The rear end of the water spraying trough box 1d is equipped with an installation groove 1d1 for installing the outer cover 1c. For the convenience of positioning and installation, the installation groove 1d1 can be set as a waist-shaped structure, and the same applies to the outer cover 1c and the inner cover 1b, both of which are waist-shaped structures, and the same is true for the front end of the water spraying joint 1a. On the installation groove 1d1, corresponding to the area where the water outlet holes 1c1 of the outer cover 1c are distributed, a communication hole 1d2 is provided to ensure the smooth transmission of water. The front end of the water spraying trough box 1d is provided with a diffusion trough 1d3 with a V-shaped cross-section, aiming to adapt to the water sprayed in a fan shape, thereby optimizing the diffusion effect of the water flow. The communication hole 1d2 not only connects the diffusion trough 1d3, but also is located at the narrow end of the rear side of the diffusion trough 1d3. Such a layout allows the water sprayed from the outer cover 1c to smoothly enter the diffusion trough 1d3 and be sprayed outwards under the guidance of the two side walls in a V shape in the diffusion trough 1d3, forming an ideal fan-shaped spraying pattern. Through the above settings, the spraying assembly 1 can effectively diffuse the water to both sides, thereby increasing the coverage area and improving the spraying efficiency.

[0032] Among them, the diffusion trough 1d3 can extend in a strip shape to the left and right sides of the water spraying trough box 1d, or can be in a conical shape as a whole. Of course, in order to save space, it is preferred that the diffusion trough 1d3 is a strip structure. Embodiment 3

[0033] This embodiment provides a cleaning robot, which includes a body 2. A cleaning cloth for wiping the surface to be cleaned (such as a glass window or a glass curtain wall, etc.) and a walking component for driving the machine to move, such as a crawler structure or walking wheels, or alternatively, a plurality of (such as two) turntables that rotate alternately are provided at the bottom of the body 2. At the same time, a suction module for adsorbing the machine on the surface to be cleaned is also provided on the body 2. Among them, as Figure 6 shown, the spraying assembly 1 of Embodiment 2 is provided on the body 2, and the water spraying joint 1a is connected to a water supply tank 3 and a driving pump (such as a water pump) for pumping and draining water. The water tank 3 and the driving pump are both installed on the body 2. The water spraying joint 1a and the water tank 3 are connected by a water pipeline, and the driving pump is arranged on this water pipeline. Among them, the spraying assembly 1 can be arranged on the side of the body 2, such as the front and rear sides of the body 2.

[0034] The spraying assembly 1 used in the cleaning robot of this embodiment can make the sprayed water diffuse in a fan shape to both sides of the body 2, realizing a wider spraying range and a larger wetting area. Even if the size of the water spraying device (spraying assembly 1) itself is not large, it can ensure that the area covered by the sprayed water is at least equivalent to the covering width of the cleaning cloth, or even wider, thereby significantly improving the cleaning effect of the cleaning robot during a single wiping process.

[0035] The above is only the preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model. Although the present utility model has been disclosed as the preferred embodiment above, it is not intended to limit the form and style of the products of the present utility model. Any person skilled in the relevant art can make some modifications or decorations to form equivalent embodiments of equivalent changes within the scope of the technical solution of the present utility model. However, all content that does not depart from the technical solution of the present utility model falls within the scope of the patent of the technical solution of the present utility model.

Claims

1. Spraying structure, characterized in that: It includes an inner cover body (1b) and an outer cover body (1c) for installation at the water outlet end of a water spraying component. A switchable cut (1b1) is provided at the front end of the inner cover body (1b). The outer cover body (1c) is sleeved outside the inner cover body (1b) with a gap left for the cut (1b1) to open. The front end of the outer cover body (1c) is arc-shaped and a plurality of water outlet holes (1c1) distributed along an arc are provided in the area corresponding to the opening of the cut (1b1).

2. The water spraying structure according to claim 1, wherein: At least the front end of the inner cover body (1b) is made of an elastic material so that the cut (1b1) at its front end can automatically open under the action of water pressure and automatically close under the action of resilience.

3. The water spraying structure according to claim 1 or 2, characterized in that: The cut (1b1) is strip-shaped, and the distribution area of the water outlet holes (1c1) corresponds to the position of the cut (1b1) of the inner cover body (1b).

4. The water spraying structure according to claim 1, wherein: The radian of the distribution area of the water outlet holes (1c1) is not less than 60 degrees.

5. The water spraying structure according to claim 1, characterized in that: The outer cover body (1c) is made of a hard material.

6. Spraying assembly, characterized in that: It includes a water spraying joint (1a) and the water spraying structure according to any one of claims 1-5. The inner cover body (1b) and the outer cover body (1c) are installed at the water outlet end of the water spraying joint (1a).

7. The spraying assembly according to claim 6, wherein: It further includes a water spraying trough box (1d). An installation groove (1d1) is provided at the rear end of the water spraying trough box (1d), and the outer cover body (1c) is installed in the installation groove (1d1). A communication hole (1d2) is provided in the installation groove (1d1) corresponding to the distribution area of the water outlet holes (1c1). A diffusion trough (1d3) with a V-shaped cross-section is provided at the front end of the water spraying trough box (1d). The communication hole (1d2) communicates with the diffusion trough (1d3) and is located at the narrow mouth end at the rear side of the diffusion trough (1d3).

8. The spraying assembly according to claim 7, characterized in that: The diffusion trough (1d3) extends to both sides of the water spraying trough box (1d) and is strip-shaped.

9. A cleaning robot, comprising a body (2), characterized in that: The spraying assembly according to any one of claims 6-8 is provided on the machine body (2). The water spraying joint (1a) is connected to a water tank (3) for supplying water and a driving pump for pumping and draining water.

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