CN211933902U - Floor sweeping robot with silencer - Google Patents

Abstract

The utility model discloses a sweeping robot equipped with a noise reduction device, which comprises a machine main body, a fan assembly, a dust box and a noise reduction device. The fan assembly, the dust box and the noise reduction device are all mounted on the main body of the machine, and the fan assembly includes an air outlet and an air suction outlet. The air suction port is connected to the dust box, and the air outlet is connected to a muffler device. The muffler device includes a muffler device shell and a horn flow channel, and the speaker flow channel abuts on the inner wall of the muffler device shell. The beneficial technical effect of the utility model is that the noise reduction system device is added to the air outlet of the fan assembly to effectively solve the problem of noise generated by the fan of the sweeping robot, and improve the user experience.

Description

A sweeping robot equipped with a muffler

technical field

The utility model belongs to the field of mobile robots, in particular to a noise reduction device of a sweeping robot.

Background technique

Due to the continuous improvement of people's requirements for the convenience of life, intelligent robots are more and more popular with users around the world. Various types and functions of intelligent robots are emerging in an endless stream, such as sweeping robots, lawn mowing robots, and spraying robots. .

In order to increase the suction power, a high-power motor needs to be used, which will cause the noise of the sweeping robot to be too loud, and the sound is harsh and not soft, and the user experience is poor. The air outlet of the fan air duct system of the traditional sweeper is almost simply noise-reduced by the noise-absorbing cotton. However, because the air volume is still large and the speed is fast, it produces a lot of messy high-frequency noise.

Utility model content:

In order to solve the technical problems in the background technology, the technical solutions provided by the present utility model are as follows:

A sweeping robot equipped with a muffler device, including a machine body, a fan assembly, a dust box, and a muffler device. The fan assembly, the dust box, and the muffler device are all installed on the machine body. The fan assembly includes an air outlet and an air suction port, and the air suction port is connected In the dust box, the air outlet is connected with a sound-absorbing device, and the sound-absorbing device includes a sound-absorbing device casing and a horn flow channel, and the horn flow channel abuts on the inner wall of the sound-absorbing device casing.

Further, in order to improve the noise reduction effect and increase the deceleration path of the airflow, in a specific embodiment of the present utility model, the noise reduction device further comprises a curved outlet, and the noise reduction device housing includes a noise reduction inlet and a noise reduction outlet, and the noise reduction inlet and the air outlet are connected, The corner outlet is connected with the muffler outlet.

Further, in order to make full use of the space in the enclosure of the muffler device and make the deceleration path of the air flow as long as possible, in a specific embodiment of the present invention, the horn channel divides the interior of the muffler device to form at least two muffler cabins, each There is a channel in the center of each muffler cabin, surrounded by a circle of curved baffles. The baffle includes the outer edge of the baffle and the inner edge of the baffle. The outer edge of the baffle of the same baffle is closer to the muffler outlet than the inner edge of the baffle. .

Further, in order to prevent the airflow entering the fan assembly from the dust box from leaking, in a specific embodiment of the present invention, the sweeping robot further includes a soft glue for docking the dust box, the dust box includes a filter port, and the filter port is used to remove the dust. Dust filter, the filter port is connected with the suction port, and the dust box docking soft glue is used to seal the connection between the filter port and the suction port.

Further, in order to prevent the air flow from the fan assembly entering the muffler device from leaking, in a specific embodiment of the present utility model, the sweeping robot further includes a soft glue of the muffler device, and the soft glue of the muffler device is used to separate the air outlet and the muffler inlet. The connection is sealed.

Further, in order to make the baffle abut and install on the baffle of the inner wall of the muffler device more stably, in a specific embodiment of the present invention, there is a baffle mounting portion on the inner wall of the outer shell of the muffler device, which is used to make the baffle plate. be fixed.

The beneficial effects of the utility model are: by adding a noise reduction system device at the air outlet of the fan assembly, the noise problem of the fan of the sweeping robot can be effectively solved, and the user experience can be improved.

Description of drawings:

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are some embodiments of the embodiments of the present invention. , for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the schematic diagram of the utility model sweeping robot;

2 is a schematic diagram of a partial explosion of the sweeping robot of the present invention;

3 is a schematic diagram of a partial explosion of the sweeping robot of the present invention;

Fig. 4 is the explosion schematic diagram of the muffler device of the present invention;

5 is a cross-sectional view of the muffler device and the fan assembly of the present invention;

FIG. 6 is a schematic diagram of the airflow direction in the muffler device of the present invention.

Detailed ways:

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. In addition, for the convenience of description, orientation words such as left, right, inner and outer are used in the description of this embodiment, but this does not limit the protection scope of the present invention.

As shown in Figures 1 and 2, a sweeping robot includes a machine body 1, a fan assembly 2, a dust box 3, a muffler 4, a cleaning assembly 5, a walking wheel set (not shown in the figure), and a dust box docking soft glue 6 and the soft rubber of the muffler device 7, the cleaning component 5 and the walking wheel set are located at the bottom of the machine body 1, the cleaning component 5 can include a roller brush and a side brush, which are used to sweep the dust and garbage on the ground into the dust box 3, the dust box 3. The fan assembly 2 and the muffler 4 are both located on the main body 1 of the machine. The fan assembly 2 includes an air inlet 21 and an air outlet 22, wherein the air inlet 21 is connected to the dust box 3, and the air outlet 22 is connected to the muffler 4.

As shown in Figures 2 and 3, the dust box 3 includes a dust inlet (not shown in the figure) and a filter port 31 at the bottom of the dust box 3. The filter port 31 is used to connect the air suction port 21, and the roller brush is located at the dust inlet. The anti-return sheet is installed at the dust inlet. The side brush and the roller brush work together to collect the dust of the garbage box to the dust inlet. The rotation of the roller brush can throw the garbage to the dust inlet. The dust and dust are sucked into the dust box 3, and the anti-return sheet can effectively prevent the garbage in the dust box 3 from spilling out from the dust inlet; a filter device is usually installed at the filter port 31 to prevent the dust of the dust box 3 from entering the fan assembly, In order to make the suction concentrated and not leak, the dust box docking soft glue 6 is installed between the filter port 31 and the air suction port 21 .

As shown in FIGS. 4-6 , the muffler 4 includes a muffler housing 41 , a horn runner 42 located in the muffler housing 41 , and an elbow outlet 43 . Abutting, one end of the muffler housing 41 connected with the air outlet 22 is the muffler inlet 411, the other end is the muffler outlet 412, the muffler outlet 412 is connected with the elbow outlet 43, the air flow enters from the muffler inlet 411, passes through the muffler outlet 412, and finally passes through the muffler outlet 412. The elbow outlet 43 flows out. The horn runner 42 forms a plurality of silencing cavities inside the silencing device 4. As shown in FIG. 6, four silencing cavities A, B, C, and D are formed here. The passage of the next-level muffler cabin or muffler outlet 412 is surrounded by a curved baffle 421. The baffle 421 includes the baffle outer edge 4211 and the baffle inner edge 4212. The baffle outer edge 4211 and the muffler housing 41 The inner wall is abutted. In order to better fix the outer edge 4211 of the baffle, a baffle mounting portion 413 is also provided on the inner wall of the housing 41 of the muffler device. Close to the muffler outlet 412, the baffle 421 is used to control the wind direction. When high-speed airflow enters the muffler device 4 from the air outlet 22, most of the airflow will be blocked by the baffle 421 except a small amount of airflow will pass directly through the central passage. After decelerating, the airflow passes along the shape of the baffle 421, and the airflow has a circuitous flow potential, thereby increasing the stroke of the airflow from the inlet to the outlet of the muffler device 4. The muffler outlet 412 is also provided with an elbow outlet 43. In order to further increase the stroke of the airflow, the shape of the elbow further decelerates the airflow to achieve the purpose of noise reduction and noise reduction. And in order to concentrate the discharged high-speed air flow and not leak, a sound-absorbing device soft rubber 7 is installed between the air outlet 22 and the sound-absorbing inlet 411 .

In this embodiment, the number of anechoic cabins is 4. According to actual requirements, the number of silencing cabins can be increased or decreased. The more silencing cabins, the longer the air flow, and the more obvious the noise reduction effect.

The above embodiment effectively solves the problem of noise generated by the fan of the sweeping robot by adding a noise reduction system device to the air outlet of the fan assembly, thereby improving user experience.

It should be understood by those of ordinary skill in the art that: the above are only specific embodiments of the present utility model, and are not intended to limit the present utility model. All within the spirit and principle of the present utility model, any modifications made, equivalent to Replacement, improvement, etc., should all be included within the protection scope of the present invention.

Claims (6)

1. The utility model provides a robot of sweeping floor of being furnished with silencing device, its characterized in that, includes machine main part (1), fan subassembly (2), dirt box (3), silencing device (4) are all installed on machine main part (1), fan subassembly (2) are including air outlet (22) and inlet scoop (21), dirt box (3) are connected in inlet scoop (21), silencing device (4) are connected in air outlet (22), silencing device (4) are including silencing device shell (41) and loudspeaker runner (42), and loudspeaker runner (42) butt is at silencing device shell (41) inner wall.

2. A sweeping robot according to claim 1, characterized in that the silencing device (4) further comprises a curve outlet (43), the silencing device housing (41) comprises a silencing inlet (411) and a silencing outlet (412), the silencing inlet (411) is connected with the air outlet (22), and the curve outlet (43) is connected with the silencing outlet (412).

3. A sweeping robot according to claim 2, characterized in that the horn runner (42) divides the interior of the silencing device (4) to form at least two silencing chambers, a channel is reserved in the center of each silencing chamber, a circle of cambered baffle (421) is arranged around each silencing chamber, each baffle (421) comprises a baffle outer edge (4211) and a baffle inner edge (4212), and the baffle outer edge (4211) of the same baffle (421) is closer to the silencing outlet (412) than the baffle inner edge (4212).

4. The sweeping robot according to claim 3, further comprising a dust box butt joint soft rubber (6), wherein the dust box (3) comprises a filtering opening (31), the filtering opening (31) is used for filtering dust, the filtering opening (31) is connected with the air suction opening (21), and the dust box butt joint soft rubber (6) is used for sealing the joint of the filtering opening (31) and the air suction opening (21).

5. The sweeping robot according to claim 3, further comprising a silencing device soft rubber (7), wherein the silencing device soft rubber (7) is used for sealing the joint of the air outlet (22) and the silencing inlet (411).

6. A sweeping robot according to any one of claims 3-5, characterized in that the inner wall of the silencer housing (41) is provided with a baffle mounting part (413) for fixing the baffle (421).

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