Blow-suction device with operation mode adjustment mechanism

Patent metadata

Field	Value
Publication number	US-11109541-B2
Application number	US-201615562500-A
Country	US
Kind code	B2
Filing date	Apr 8, 2016
Priority date	Apr 10, 2014
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

The present invention relates to a blowing-suction device. The blowing-suction device includes: a housing, having a first opening connected to the outside; an air tube, connected to the housing; an air flow generation apparatus that operably generates an air flow, where when the blowing-suction device is in the blowing mode, the air flow is blown out from the air tube, or when the blowing-suction device is in the suction mode, the air flow is sucked from the air tube; and a collection apparatus, configured to collect an object sucked by the blowing-suction device in the suction mode, where the collection apparatus is connected to the first opening both in the blowing mode and in the suction mode, and the collection apparatus further includes an air admission portion, and in the blowing mode, the air admission portion is open; or in the suction mode, the air admission portion is closed.

First claim

What is claimed is:

1. A blowing-suction device that operably works in a blowing mode or a suction mode, wherein the blowing-suction device comprises:
a housing, having a first opening;
an air tube, connected to the housing and having a tube opening;
an air flow generation apparatus disposed in the housing and operably generates an air flow, the air flow generation apparatus comprising a fan having a fan axis and a motor configured to rotate the fan;
a collection apparatus configured to collect an object sucked by the blowing-suction device in the suction mode, the collection apparatus connected to the first opening when the device is in the blowing mode and the suction mode; and
an air admission portion configured to be open when the device is in the blowing mode and closed when the device is in the suction mode;
wherein the collection apparatus further has an operation portion that controls the air admission portion; in the blowing mode, the operation portion opens the air admission portion, and air passes through the air admission portion; or in the suction mode, the operation portion closes the air admission portion, and air cannot pass through the air admission portion;
the collection apparatus further comprising a collection portion; the collection portion can move relative to the air admission portion; and in the suction mode, the air admission portion is accommodated in the collection portion; or in the blowing mode, the collection portion is moveable relative to the air admission portion and the air admission portion is exposed for communication with the air flow;
wherein, the blowing-suction device is configurable between the blowing mode, wherein air flow enters the first opening and is blown out from the tube opening, and the suction mode, wherein, the air flow is sucked from the tube opening and exhausted from the first opening;
wherein, a length of the air tube is coaxial with the fan axis.

2. The blowing-suction device according to claim 1 , wherein the collection apparatus comprises a pivotal shaft that connects to the collection portion and the air admission portion, so that the collection portion rotates around the pivotal shaft.

3. The blowing-suction device according to claim 1 , wherein the operation portion is a handle installed on the collection portion.

4. The blowing-suction device according to claim 1 , wherein the air admission portion is provided with an air intake hole.

5. A blowing-suction device that operably works in a blowing mode or a suction mode, wherein the blowing-suction device comprises:
a housing, having a first opening;
an air tube, connected to the housing and having a tube opening;
an air flow generation apparatus disposed in the housing and operably generates an air flow, the air flow generation apparatus comprising a fan having a fan axis and a motor configured to rotate the fan;
a collection apparatus configured to collect an object sucked by the blowing-suction device in the suction mode, the collection apparatus connected to the first opening when the device is in the blowing mode and the suction mode; and
an air admission portion configured to be open when the device is in the blowing mode and closed when the device is in the suction mode;
wherein, the blowing-suction device is configurable between the blowing mode, wherein air flow enters the first opening and is blown out from the tube opening, and the suction mode, wherein, the air flow is sucked from the tube opening and exhausted from the first opening,
wherein, a length of the air tube is coaxial with the fan axis;
wherein the collection apparatus further has an operation portion that controls the air admission portion; in the blowing mode, the operation portion opens the air admission portion, and air passes through the air admission portion; or in the suction mode, the operation portion closes the air admission portion, and air cannot pass through the air admission portion;
wherein the collection apparatus comprises a collection main body configured for collection; the air admission portion is a notch provided on the collection main body; and in the suction mode, the notch is blocked by the operation portion; or in the blowing mode, the operation portion moves, so that the notch is open.

6. The blowing-suction device according to claim 5 , wherein the notch is formed by two intersected barrier walls on the collection main body, and the operation portion is a wedge-shaped three-dimensional structure that can be inserted into the notch.

7. The blowing-suction device according to claim 6 , wherein the wedge-shaped three-dimensional structure has an inclined surface and a bottom surface that correspond to the barrier walls, and a ventilation structure is provided on the inclined surface and the bottom surface.

8. The blowing-suction device according to claim 5 , wherein the notch is provided on a surface of the collection main body, and the operation portion is a cover that operably opens or closes the notch.

9. The blowing-suction device according to claim 8 , wherein the cover opens or closes the notch in a translation manner, and the blowing-suction device has a guide mechanism that guides the cover to move.

10. The blowing-suction device according to claim 8 , wherein the cover opens or closes the notch in a pivoting manner, the blowing-suction device has a pivotal shaft, and the cover is rotatably connected to the pivotal shaft.

Assignees

• Positec Power Tools Suzhou Co Ltd

Inventors

• Huo Lixiang
• Zha Xiahong
• Zhao Fengli
• Jiao Shiping
• Mou Guoliang

Classifications

• F04D29/541

  Specially adapted for elastic fluid pumps (F04D29/56 takes precedence) · CPC title

• E01H1/0863 Primary

  Apparatus loosening or removing the dirt by blowing and subsequently dislodging it at least partially by suction (liquids or semi-liquids E01H1/108); Combined suction and blowing nozzles · CPC title

• A47L5/14

  cleaning by blowing-off, also combined with suction cleaning · CPC title

• E01H1/0836

  Apparatus dislodging all of the dirt by suction (combined with loosening by blowing E01H1/0863; liquids or semi-liquids E01H1/108; removing snow by suction E01H5/106, E01H8/08; for cleaning rails E01H8/105, E01H8/125); Suction nozzles (suction and blowing nozzles E01H1/0863) · CPC title

• F04D29/701

  especially adapted for elastic fluid pumps · CPC title