Silencing device and sweeper

Abstract

The silencer comprises a first silencing area, a second silencing area and a third silencing area, the first silencing area, the second silencing area and the third silencing area are arranged in a silencer body, and the first silencing area, the second silencing area and the third silencing area are all connected to a shell. A plurality of silencing holes are formed in the first silencing area, the second silencing area and the third silencing area, and the diameters of the silencing holes in the first silencing area, the second silencing area and the third silencing area are different; silencing parts are arranged between the first silencing area, the second silencing area and the third silencing area and the shell; an air cavity is formed between the silencer body and the shell. Through the arrangement of the first silencing area, the second silencing area, the third silencing area and the silencing part, the high-frequency band, the middle-frequency band and the low-frequency band of sound can be absorbed, and noise is effectively reduced; and the silencing part such as silencing cotton is arranged between the shell and the silencing area, so that the flow of the fan is prevented from being influenced, and the performance of the sweeper is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to a silencing structure, in particular to a silencing device and a sweeping machine, belonging to the technical field of sweeping robots. Background Art

[0002] A sweeping robot, also known as a sweeping machine, automatic sweeping machine, smart vacuum cleaner, robot vacuum cleaner, etc., is a type of smart home appliance that can automatically clean the floor in the room with the help of artificial intelligence. It generally uses brushing and vacuuming to absorb the debris on the ground into its own garbage collection box, thereby completing the function of floor cleaning. Generally speaking, a robot that completes the work of sweeping, vacuuming, and mopping the floor.

[0003] In the prior art, the air outlet of the sweeper produces relatively high noise, and there is a lack of a silencer structure to reduce the noise, resulting in problems such as extremely poor user comfort when the sweeper is working. Moreover, in some existing silencer devices, silencer cotton is blocked at the air outlet. Although it has a certain silencer effect, it reduces the flow rate of the fan in the sweeper and reduces the performance of the sweeper. Moreover, the silencer effect is not good if it only relies on the silencer cotton. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a silencing device and a sweeping machine, which solves the problem that the air outlet of the sweeping machine makes loud noise.

[0005] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0006] The utility model provides a silencing device, comprising a first silencing area, a second silencing area and a third silencing area arranged in a body of the silencing device, wherein:

[0007] The first silencing zone, the second silencing zone and the third silencing zone are all connected to the shell;

[0008] The first silencing zone, the second silencing zone and the third silencing zone are each provided with a plurality of silencing holes, wherein:

[0009] The diameters of the silencer holes in the first silencer zone, the second silencer zone and the third silencer zone are all different.

[0010] As a preferred technical solution of the present utility model, a silencer portion is provided between the first silencer zone, the second silencer zone, the third silencer zone and the shell.

[0011] As a preferred technical solution of the present utility model, the sound-absorbing part includes sound-absorbing cotton.

[0012] As a preferred technical solution of the utility model, the diameter of the silencer holes in the first silencer zone is smaller than the diameter of the silencer holes in the second silencer zone, and the diameter of the silencer holes in the second silencer zone is smaller than the diameter of the silencer holes in the third silencer zone.

[0013] As a preferred technical solution of the present utility model, an air cavity is formed between the silencer body and the shell.

[0014] As a preferred technical solution of the utility model, one side of the first silencing zone is an air inlet, and one side of the third silencing zone is an end cover.

[0015] The utility model further provides a sweeping machine, which has the aforementioned silencing device, and the silencing device body is installed on the sweeping machine.

[0016] The beneficial effects of the utility model are as follows: the utility model can absorb the high-frequency band, the medium-frequency band and the low-frequency band of the sound through the arrangement of the first silencing zone, the second silencing zone, the third silencing zone and the silencing part, and effectively reduce the noise; the silencing part such as the silencing cotton is arranged between the shell and the silencing zone, so as to avoid affecting the flow of the fan and avoiding affecting the performance of the sweeper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] In the figure: 1, air inlet; 2, first silencing zone; 3, second silencing zone; 4, third silencing zone; 5, silencing part; 6, shell; 7, end cover; 8, air cavity; 10, silencing device body. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0020] Example

[0021] like Figure 1As shown, the present embodiment provides a silencer, comprising a first silencer zone 2, a second silencer zone 3 and a third silencer zone 4 arranged in a silencer device body 10, one side of the first silencer zone 2 is an air inlet 1, and one side of the third silencer zone 4 is an end cover 7; wherein, the silencer zones constituted by the first silencer zone 2, the second silencer zone 3 and the third silencer zone 4 are all connected to the shell 6, specifically, the silencer zones are all plates or plates connected to the shell 6, and the first silencer zone 2, the second silencer zone 3 and the third silencer zone 4 are all provided with a plurality of silencer holes, wherein the diameters of the silencer holes on the first silencer zone 2, the second silencer zone 3 and the third silencer zone 4 are all different, preferably, the silencer holes can be circular, oval, polygonal (such as honeycomb hole shape) and the like, and are preferably circular in the present embodiment. In this embodiment, the diameter of the silencer holes in the first silencer zone 2 is smaller than the diameter of the silencer holes in the second silencer zone 3 , and the diameter of the silencer holes in the second silencer zone 3 is smaller than the diameter of the silencer holes in the third silencer zone 4 .

[0022] A silencer part 5 is provided between the first silencer zone 2, the second silencer zone 3 and the third silencer zone 4 and the shell 6. In this embodiment, the silencer part 5 includes silencer cotton, and a plurality of perforated plates may be selected for superposition. The perforated plates may have small holes of different apertures, which may also achieve a silencer effect.

[0023] An air cavity 8 is formed between the silencing device body 10 and the shell 6. The first silencing zone 2, the second silencing zone 3 and the third silencing zone 4 are arranged along the air cavity 8. By changing the distance of the gradual air cavity 8, different sound absorption bands can be formed, which can have a good effect on different speeds and different specifications of the fan.

[0024] Specifically, the sound enters the silencer body 10 from the air inlet 1, the small hole area (first silencer area 2) absorbs the high frequency band of the sound, the medium hole area (second silencer area 3) absorbs the medium frequency band of the sound, and the large hole area (third silencer area 4) and the silencer cotton (silencer part 5) absorb the low frequency band of the sound; and by changing the distance of the gradual air cavity 8, different sound absorption bands can be formed, which can have a good effect on different speeds and different specifications of the fan; at the same time, there is no obstruction in the area where the fluid passes, and this silencer maximizes the passage of the fluid and reduces the noise.

[0025] This embodiment also provides a sweeping machine having the aforementioned silencing device, wherein the silencing device body 10 is installed on the sweeping machine.

[0026] The utility model can absorb the high frequency band, medium frequency band and low frequency band of sound and effectively reduce noise by setting the first silencing zone, the second silencing zone, the third silencing zone and the silencing part; the silencing part such as the silencing cotton is set between the shell and the silencing zone, so as to avoid affecting the flow of the fan and avoid affecting the performance of the sweeper.

[0027] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A silencing device for silencing a sweeping machine, characterized in that: The invention comprises a first silencing zone (2), a second silencing zone (3) and a third silencing zone (4) which are arranged in a silencing device body (10), wherein: The first silencing zone (2), the second silencing zone (3) and the third silencing zone (4) are all connected to the housing (6); The first silencing zone (2), the second silencing zone (3) and the third silencing zone (4) are each provided with a plurality of silencing holes, wherein: The diameters of the silencer holes in the first silencer zone (2), the second silencer zone (3) and the third silencer zone (4) are all different.

2. A silencing device according to claim 1, characterized in that: A silencer portion (5) is provided between the first silencer zone (2), the second silencer zone (3), the third silencer zone (4) and the shell (6).

3. A silencing device according to claim 2, characterized in that: The silencer (5) comprises silencer cotton.

4. A silencing device according to claim 1, characterized in that: The diameter of the sound-absorbing hole in the first sound-absorbing zone (2) is smaller than the diameter of the sound-absorbing hole in the second sound-absorbing zone (3), and the diameter of the sound-absorbing hole in the second sound-absorbing zone (3) is smaller than the diameter of the sound-absorbing hole in the third sound-absorbing zone (4).

5. A silencing device according to claim 1, characterized in that: An air cavity (8) is formed between the silencer body (10) and the shell (6).

6. A silencing device according to claim 1, characterized in that: One side of the first silencing zone (2) is an air inlet (1), and one side of the third silencing zone (4) is an end cover (7).

7. A sweeping machine, comprising a silencing device as claimed in any one of claims 1 to 6, characterized in that: The silencer body (10) is installed on the sweeping machine.

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