Floor scrubber with air duct device

Abstract

The utility model discloses a scrubber with an air duct device. The floor brush seat is connected with the bottom of the vertical machine body and can do reciprocating motion on a horizontal plane; at least part of the sewage tank is accommodated in the recycling cavity; the vacuum motor is arranged in the vertical machine body; the air duct device is arranged in the vertical machine body; the air duct device comprises at least two air ducts and a spacing piece which is located between the two air ducts and is at least partially in an arc shape. By means of zigzag transformation of the wave-shaped air channel, expansion type noise reduction of air flow is achieved, and therefore noise of the cleaning machine is reduced.

Description

Technical Field

[0001] The utility model relates to the field of cleaning equipment, in particular to a floor scrubber with an air duct device. Background Art

[0002] With the development of science and technology, people's requirements for quality of life are increasing. As a new type of cleaning equipment, floor scrubbers have gradually entered domestic households because they can perform liquid cleaning on hard floors. Similar technologies can be found in Chinese utility model patent CN215874488U; however, since they need to be equipped with a vacuum motor, the noise generated by the vacuum motor is annoying and needs to be improved.

[0003] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of the utility model is to provide a floor scrubber with an air duct device that can effectively solve the above technical problems.

[0005] To achieve the purpose of the present invention, the following technical solution is adopted: a floor scrubber with an air duct device, comprising a vertical body with a recovery chamber, a floor brush holder connected to the bottom of the vertical body and capable of reciprocating on a horizontal plane, a sewage tank at least partially accommodated in the recovery chamber, a vacuum motor arranged in the vertical body, and an air duct device arranged in the vertical body and connected to the vacuum motor at one end, wherein the air duct device includes at least two air ducts and a spacer located between the two air ducts.

[0006] The air duct device includes a first and a second air duct, wherein the first air duct at least includes a first extension section of the first air duct connected to the vacuum motor at one end, a second extension section of the first air duct connected to the other end of the first extension section of the first air duct at one end, and a third extension section of the first air duct connected to the other end of the second extension section of the first air duct at one end; the second air duct at least includes a first extension section of the second air duct connected to the vacuum motor at one end, a second extension section of the second air duct connected to the other end of the first extension section of the second air duct at one end, and a third extension section of the second air duct connected to the other end of the second extension section of the second air duct at one end.

[0007] The maximum cross-sectional area of ​​the first extension section of the first air duct is smaller than the maximum cross-sectional area of ​​the second extension section of the first air duct, and is larger than the maximum cross-sectional area of ​​the third extension section 1646 of the first air duct.

[0008] The maximum cross-sectional area of ​​the first extension section of the second air duct is larger than the maximum cross-sectional area of ​​the second extension section of the second air duct, and smaller than the maximum cross-sectional area of ​​the third extension section of the second air duct.

[0009] It also includes a third air duct located between the first air duct and the second air duct, wherein a spacer is provided between the first air duct and the third air duct, and another spacer is provided between the first air duct and the third air duct, wherein the spacer is provided in a wave shape.

[0010] The third air duct includes a first extension section of the third air duct connected to the vacuum motor at one end, a second extension section of the third air duct connected to the other end of the first extension section of the third air duct at one end, and a third extension section of the third air duct connected to the other end of the second extension section of the third air duct at one end, wherein the cross-sectional areas of the first extension section of the third air duct, the second extension section of the third air duct, and the third extension section of the third air duct are the same.

[0011] It also includes a machine head located above the recovery chamber, a clean water chamber arranged corresponding to the recovery chamber, and a clean water tank at least partially accommodated by the clean water chamber, wherein the air duct device is located between the recovery chamber and the clean water chamber.

[0012] The first air duct includes a fourth extension section of the first air duct connected to the third extension section of the first air duct at one end, a fifth extension section of the first air duct connected to the other end of the fourth extension section of the first air duct at one end, and a sixth extension section of the first air duct connected to the other end of the fifth extension section of the first air duct at one end; the second air duct includes at least a fourth extension section of the second air duct connected to the third extension section of the second air duct at one end, a fifth extension section of the second air duct connected to the other end of the fourth extension section of the second air duct at one end, and a sixth extension section of the second air duct connected to the other end of the fifth extension section of the second air duct at one end.

[0013] The fourth extension section of the first air duct is mirrored to the third extension section 1646 of the first air duct, and the cross-sectional area increases along the airflow direction; the fifth extension section of the first air duct is mirrored to the second extension section of the first air duct, and the cross-sectional area decreases along the airflow direction; the sixth extension section of the first air duct is similar in shape to the first extension section of the first air duct; the fourth extension section of the second air duct is mirrored to the third extension section of the second air duct, and the cross-sectional area decreases along the airflow direction; the fifth extension section of the second air duct is mirrored to the second extension section of the second air duct, and the cross-sectional area increases along the airflow direction; the sixth extension section of the second air duct is similar in shape to the first extension section of the second air duct.

[0014] Compared with the prior art, the present invention has the following beneficial effects: through the tortuous transformation of the wavy air duct, the expansion-type silencing of the air flow is achieved, thereby reducing the noise of the cleaning machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 It is a three-dimensional diagram of the present utility model.

[0017] Figure 2 It is a cross-sectional view of the present utility model.

[0018] Figure 3 It is a three-dimensional diagram of the neutral fuselage of the present invention.

[0019] Figure 4 This is another perspective view of the neutral body of the present invention.

[0020] Figure 5 It is a cross-sectional view of the neutral fuselage of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments.

[0022] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] like Figures 1 to 5As shown, a floor scrubber with an air duct device includes an upright body 1000 having a recovery chamber 1200, a floor brush holder 2000 connected to the bottom of the upright body 1000 and capable of reciprocating on a horizontal plane, a sewage tank 3000 at least partially accommodated in the recovery chamber 1200, a vacuum motor 4000 disposed in the upright body 1000, and an air duct device 1600 disposed in the upright body 1000 and connected to the vacuum motor 4000 at one end. The air duct device 1600 includes at least two air ducts and a spacer 1620 located between the two air ducts and at least partially arcuate.

[0024] Air duct device 1600 includes first and second air ducts. The first air duct includes at least a first air duct first extension section 1642 connected to the vacuum motor 4000 at one end, a first air duct second extension section 1644 connected to the other end of the first air duct first extension section 1642 at one end, and a first air duct third extension section 1646 connected to the other end of the first air duct second extension section 1644 at one end. The second air duct includes at least a second air duct first extension section 1662 connected to the vacuum motor 4000 at one end, a second air duct second extension section 1664 connected to the other end of the second air duct first extension section 1662 at one end, and a second air duct third extension section 1666 connected to the other end of the second air duct second extension section 1664 at one end. The maximum cross-sectional area of ​​first air duct first extension section 1642 is smaller than the maximum cross-sectional area of ​​first air duct second extension section 1644, but larger than the maximum cross-sectional area of ​​first air duct third extension section 1646. The maximum cross-sectional area of ​​the second air duct first extension section 1662 is larger than the maximum cross-sectional area of ​​the second air duct second extension section 1664 , and smaller than the maximum cross-sectional area of ​​the second air duct third extension section 1666 .

[0025] In this embodiment, the air duct device 1600 also includes a third air duct located between the first air duct and the second air duct, wherein a spacer 1620 is arranged between the first air duct and the third air duct, and another spacer 1620 is arranged between the first air duct and the third air duct, wherein both spacers 1620 are arranged in a wavy shape.

[0026] The third air duct includes a third air duct first extension section 1682 having one end connected to the vacuum motor 4000, a third air duct second extension section 1684 having one end connected to the other end of the third air duct first extension section 1682, and a third air duct third extension section 1686 having one end connected to the other end of the third air duct second extension section 1684, wherein the cross-sectional areas of the third air duct first extension section 1682, the third air duct second extension section 1684, and the third air duct third extension section 1686 are the same.

[0027] This embodiment further includes a head portion 1300 located above the recovery chamber 1200 and housing a vacuum motor 4000, a clean water chamber 1400 corresponding to the recovery chamber 1200, and a clean water tank at least partially housed by the clean water chamber 1400, wherein an air duct device 1600 is located between the recovery chamber 1200 and the clean water chamber 1400. The head portion 1300 is provided with a head portion air inlet 4020 connected to the input end of the vacuum motor 4000, and a head portion air inlet 4020 having one end connected to the output end of the vacuum motor 4000 and the other end connected to the input end of the air duct device 1600.

[0028] Preferably, in this embodiment, the first air duct further includes a fourth extension section of the first air duct connected to the third extension section 1646 of the first air duct at one end, a fifth extension section of the first air duct connected to the other end of the fourth extension section of the first air duct at one end, and a sixth extension section of the first air duct connected to the other end of the fifth extension section of the first air duct at one end; the second air duct further includes a fourth extension section of the second air duct connected to the third extension section of the second air duct at one end, a fifth extension section of the second air duct connected to the other end of the fourth extension section of the second air duct at one end, and a sixth extension section of the second air duct connected to the other end of the fifth extension section of the second air duct at one end. The fourth extension section of the first air duct is mirrored to the third extension section 1646 of the first air duct, and the cross-sectional area becomes larger along the airflow direction; the fifth extension section of the first air duct is mirrored to the second extension section 1644 of the first air duct, and the cross-sectional area becomes smaller along the airflow direction; the sixth extension section of the first air duct is symmetrically arranged to the first extension section 1642 of the first air duct; the fourth extension section of the second air duct is mirrored to the third extension section 1666 of the second air duct, and the cross-sectional area becomes smaller along the airflow direction; the fifth extension section of the second air duct is mirrored to the second extension section 1664 of the second air duct, and the cross-sectional area becomes larger along the airflow direction; the sixth extension section of the second air duct is symmetrically arranged to the first extension section 1662 of the second air duct.

[0029] During operation, the airflow coming out of the vacuum motor 4000 is divided into three parts, which enter the first, second and third air ducts respectively, and then enter the second extension sections of the first, second and third air ducts along the first extension sections of the first, second and third air ducts, and then enter the third extension sections of the first, second and third air ducts. Due to the changes in the cross-sectional areas of the first and second air ducts, the airflow is amplified or contracted, that is, the acoustic impedance is changed at the place where the cross-sectional area suddenly changes, so that sound waves of certain frequencies are reflected, interfered, and offset in the cross-sectional area where the acoustic impedance suddenly changes, and the noise is further reduced through the wavy spacers.

[0030] The utility model realizes expansion-type silencing of the air flow through the tortuous transformation of the wave-shaped air duct, thereby reducing the noise of the cleaning machine.

[0031] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0032] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A floor scrubber with an air duct device, characterized in that include: A vertical body (1000) having a recovery chamber (1200), a floor brush holder (2000) connected to the bottom of the vertical body (1000) and capable of reciprocating on a horizontal plane, a sewage tank (3000) at least partially accommodated in the recovery chamber (1200), a vacuum motor (4000) disposed in the vertical body (1000), and an air duct device (1600) disposed in the vertical body (1000) and connected to the vacuum motor (4000) at one end, wherein the air duct device (1600) comprises at least two air ducts and a spacer (1620) located between the two air ducts.

2. A floor scrubber with an air duct device according to claim 1, characterized in that: The air duct device (1600) includes a first and a second air duct, wherein the first air duct at least includes a first extension section (1642) of the first air duct connected to the vacuum motor (4000) at one end, a second extension section (1644) of the first air duct connected to the other end of the first extension section (1642) of the first air duct at one end, and a third extension section (1646) of the first air duct connected to the other end of the second extension section (1644) of the first air duct at one end; the second air duct at least includes a first extension section (1662) of the second air duct connected to the vacuum motor (4000) at one end, a second extension section (1664) of the second air duct connected to the other end of the first extension section (1662) of the second air duct, and a third extension section (1666) of the second air duct connected to the other end of the second extension section (1664) of the second air duct.

3. A floor scrubber with an air duct device according to claim 2, characterized in that: The maximum cross-sectional area of ​​the first extension section (1642) of the first air duct is smaller than the maximum cross-sectional area of ​​the second extension section (1644) of the first air duct, and is larger than the maximum cross-sectional area of ​​the third extension section (1646) of the first air duct.

4. A floor scrubber with an air duct device according to claim 3, characterized in that: The maximum cross-sectional area of ​​the first extension section (1662) of the second air duct is greater than the maximum cross-sectional area of ​​the second extension section (1664) of the second air duct, and is smaller than the maximum cross-sectional area of ​​the third extension section (1666) of the second air duct.

5. A floor scrubber with an air duct device as claimed in claim 4, characterized in that It also includes a third air duct located between the first air duct and the second air duct, wherein a spacer (1620) is provided between the first air duct and the third air duct, and another spacer (1620) is provided between the first air duct and the third air duct, wherein the spacer (1620) is provided in a wave shape.

6. A floor scrubber with an air duct device according to claim 5, characterized in that: The third air duct includes a first extension section (1682) of the third air duct connected to the vacuum motor (4000) at one end, a second extension section (1684) of the third air duct connected to the other end of the first extension section (1682) of the third air duct, and a third extension section (1686) of the third air duct connected to the other end of the second extension section (1684) of the third air duct, wherein the cross-sectional areas of the first extension section (1682), the second extension section (1684) and the third extension section (1686) of the third air duct are the same.

7. A floor scrubber with an air duct device as claimed in claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that The device further comprises a head portion (1300) located above the recovery chamber (1200), a clean water chamber (1400) arranged corresponding to the recovery chamber (1200), and a clean water tank at least partially received by the clean water chamber (1400), wherein the air duct device (1600) is located between the recovery chamber (1200) and the clean water chamber (1400).

8. A floor scrubber with an air duct device according to claim 2, 3, 4, 5 or 6, characterized in that: The first air duct includes a fourth extension section of the first air duct connected to the third extension section (1646) of the first air duct at one end, a fifth extension section of the first air duct connected to the other end of the fourth extension section of the first air duct at one end, and a sixth extension section of the first air duct connected to the other end of the fifth extension section of the first air duct at one end; the second air duct includes at least a fourth extension section of the second air duct connected to the third extension section of the second air duct at one end, a fifth extension section of the second air duct connected to the other end of the fourth extension section of the second air duct at one end, and a sixth extension section of the second air duct connected to the other end of the fifth extension section of the second air duct at one end.

9. The floor scrubber with an air duct device according to claim 8, characterized in that: The fourth extension section of the first air duct is mirrored to the third extension section (1646) of the first air duct, and the cross-sectional area increases along the airflow direction; the fifth extension section of the first air duct is mirrored to the second extension section (1644) of the first air duct, and the cross-sectional area decreases along the airflow direction; the sixth extension section of the first air duct is similar in shape to the first extension section (1642) of the first air duct; the fourth extension section of the second air duct is mirrored to the third extension section (1666) of the second air duct, and the cross-sectional area decreases along the airflow direction; the fifth extension section of the second air duct is mirrored to the second extension section (1664) of the second air duct, and the cross-sectional area increases along the airflow direction; the sixth extension section of the second air duct is similar in shape to the first extension section (1662) of the second air duct.

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