Dust collector cup of fall centrifugal separation type

• US 7,780,753 B2
• Filed: 01/04/2006
• Issued: 08/24/2010
• Est. Priority Date: 05/27/2005
• Status: Expired due to Fees

• Current Assignee: Yuedan Wang
• Original Assignee: Yuedan Wang
• Inventors: Lang, Weiguo
• Primary Examiner(s): Greene; Jason M
• Assistant Examiner(s): BUI, DUNG H
• Application Number:
  US11/814,720
• Publication Number:
  US 20080104795A1
• Time in Patent Office: 1,693 Days
• Field of Search: 553/37, 553/36, 553/43, 553/45, 553/46, 553/99, 554/26, 554/591, 55D/IG.3, 153/53, 153/52, 153/63
• US Class Current: 55/337
• CPC Class Codes: A47L 9/1608 Cyclonic chamber constructions
• CPC Class Codes: A47L 9/1633 Concentric cyclones
• CPC Class Codes: A47L 9/165 Construction of inlets
• CPC Class Codes: A47L 9/1666 with filtering means
• CPC Class Codes: Y10S 55/03 Vacuum cleaner

Abstract

A dust collector cup working in the principle of fall centrifugal separation, consists of cup body (13), outlet (3) on the cup body (13), inlet (1) tangential to the circumferential wall of the cup body (13), and a separator settled in the cup body (13). The separator is composed of outlet tube (9), inlet (6) on the wall of the outlet tube (9), and the isolating shield (7) under the inlet (6) of the outlet tube (9), with the outlet tube (9) linked to the outlet (3) of the cup body (13). The fall between the horizontal positions of the lower end of inlet of the cup body (13) and the upper end of the inlet (6) of the outlet tube (9) is 0-140 mm.

Claims

1. A dust collector cup of fall centrifugal separation type, including a cup body, an outlet configured on the cup body, an inlet tangential to the circumferential wall of cup body, and a separator installed in cup body, said separator consisting of outlet tube, inlet configured in the wall of the outlet tube and the isolating shield installed below the inlet of the outlet tube, said outlet tube connecting with the outlet of the cup body, wherein the fall height between the horizontal position of the lower and inlet on the cup body and that of the upper end of the inlet of the outlet tube is 30-140 mm, wherein the height of an inner tube coaxially installed in said outlet tube is lower than that of the outlet tube, the bottom of the inner tube is connected to the outlet tube, the bottom of the inner tube is connected to the outlet tube and the inlet of the separator is connected with the outlet of the dust cup via inner tube, the inlet of said separator is an annular body consisting of vanes arranged spirally and smoothly based on an annular array.

2. The dust collector cup as claimed in claim 1, wherein the inlet consists of grid holes.

3. The dust collector cup as claimed in claim 1, wherein the height of an inner tube coaxially installed in said outlet tube is lower than that of the outlet tube, and the inlet of the separator is connected with the outlet of the dust cup via inner tube.

4. The dust collector cup as claimed in claim 1, wherein said outlet is configured at the bottom of the cup body, consisting of the horn-type flange connected between the bottom of the inner tube and the dust cup body;

the top of the inlet of said separator is connected with the connecting support and fixed on top of the dust cup;

the bottom of the separator inlet is fixed on the isolating shield with a central hole;

said outlet tube is configured below the inlet of the separator, extends downward and connects with the horn-type flange.

5. The dust collector cup as claimed in claim 4, wherein the lower end of said connecting support is cylindrical and connected with the top of the separator inlet;

the top end of the connecting support is flat and fixed on the top of the cup body.

6. The dust collector cup as claimed in claim 1, wherein said outlet tube is connected with the dust cup body via a connecting support with a central hole.

7. The dust collector cup as claimed in claim 6, wherein said connecting support is in a horn-type shape and a short tube corresponding to the inner tube is connected below the central hole.

8. The dust collector cup as claimed in claim 7, wherein an extension tube is connected at the bottom of said inner tube, the lower end of the inner ring of the vanes smoothly arranged at the inlet extends downward through the isolating shield to form a cylindrical cavity, which is connected with said extension tube.

9. The dust collector cup as claimed in claim 8, wherein said extension tube, a spiral structure rotating up and down is settled.

10. The dust collector cup as claimed in claim 9, wherein a conical cylinder with an opening at the bottom is configured in the cylindrical cavity, the upper end of the conical cylinder is connected with the cylindrical cavity, the upper end of the conical cylinder is connected with the cylindrical cavity at a horizontal position lower than the lower end of the extension tube, and there is a certain gap between the lower end of the conical cylinder and the bottom of the cylindrical cavity.

11. The dust collector cup as claimed in claim 10, wherein there is a first gap between the external wall of the extension tube and the inner ring of the vanes smoothly arranged at the inlet of the separator.

12. The dust collector cup as claimed in claim 11, wherein there is a second gap reserved between the cylindrical cavity and the extension tube. The second gap is connected with the first gap.