CN1299631A

CN1299631A - Cyclonic dust collector

Info

Publication number: CN1299631A
Application number: CN 99120611
Authority: CN
Inventors: 钱东奇
Original assignee: Ecovacs Robotics Suzhou Co Ltd
Current assignee: Ecovacs Robotics Suzhou Co Ltd
Priority date: 1999-12-10
Filing date: 1999-12-10
Publication date: 2001-06-20

Abstract

The present invention relates to a cyclone cleaner, including cyclone external cylinder, pipe interface, internal cylinder and exhaust channel. It is characterized by that several air holes are distributed on the cylinder wall of internal cylinder, the internal cavity of said internal cylinder is communicated with the internal cavity of said external cylinder by means of said air holes. The external surfac of the internal cylinder is covered with filtering layer capable of filtering dust and allowing air to permeate, and all the air holes are covered with said filtering layer. Bacause the external surface of filtering layer is positioned in internal cavity of cyclone external cylinder body, the high-speed rotating airflow makes the dust particles do not to be easily adsorbed on the filtering layer and makes it possess good air permeability for a long period.

Description

Cyclonic dust collector

The present invention relates to a kind of rotoclone collector.

In the prior art, Britain Notetry Ltd took the lead in developing the dust-separating appliance that utilizes the centrifugal mechanism of swirling eddy in 1996, it is based on a common physical principle: make object make circular motion with certain acceleration (a), the external force (F) that adds thereon is directly proportional with its quality (m), i.e. F=ma; After external force did not exist, object tendency to drift away in the high speed rotary course that quality is big was also big.Therefore, if make the air-flow that has dust with certain rotating at a high speed, then dust granule can be separated from air greatly because of its quality.The product of Britain Notetry Ltd as shown in Figure 4, interface tube is by air-flow bend and Whirlwind barrel intracavity inter-connection, the outside inwall of its air-flow bend and the inwall of Whirlwind barrel are tangent, make most of air-flow enter cylinder lumen by the inwall tangential direction of Whirlwind barrel.Dust can be separated from air and be attached on the internal chamber wall of whirlwind outer cylinder body fully in theory, and the air-flow of discharging from inner barrel is a clean gas flow.But in fact reach the high-speed of theory surely, so some dust still can enter inner barrel and outside the air-out passage is discharged dust catcher, make the dust removing effects of dust catcher greatly reduce because the speed of the swirling eddy of input differs.In order to address this problem, it is that cross-wise direction at the air-out passage of inner barrel is provided with a filter dirt film that a kind of design is arranged, the frequent micropore of filtering on the dirt film that makes is stopped up by dust but the sectional area of this filter dirt film is little, has influenced the air draft of dust catcher, and the filter dirt film that should locate is changed difficulty.Second kind of design is that inner barrel is directly made with the filtering material of a duricrust, the convex tendon that this inner barrel outer surface is provided with a plurality of radial protrusions and extends vertically, the purpose of this convex tendon is the external surface area that increases inner barrel, to prolong the working time of dust suction, but this convex tendon influences the air-flow rotation in the whirlwind outer cylinder body inner chamber, and the low-lying place of dust accretions between convex tendon makes this locate basic stuffiness, in fact Tong Qi effective external surface area is in use more and more littler on the contrary, and it is bad to cause filtering the dirt effect.When filtering material is clogged by micronic dust and is difficult to clean, this inner barrel will need to change, and causing more, the cost of conversion materials improves.

The object of the present invention is to provide a kind of effective rotoclone collector of dirt of filtering.

Technical scheme of the present invention is: a kind of Cyclonic dust collector, the whirlwind outer cylinder body that comprises next the end sealing of dust suction state, the interface tube that is used for the air-flow input with the intracavity inter-connection of described whirlwind outer cylinder body, be arranged in the inner chamber of described whirlwind outer cylinder body and with the coaxial inner barrel of described whirlwind outer cylinder body, the air-out passage that is used for air-flow output with the intracavity inter-connection of described inner barrel, be distributed with a plurality of passages on the barrel of described inner barrel, this passage makes the inner chamber of described inner barrel and the intracavity inter-connection of described whirlwind outer cylinder body, the outer surface of described inner barrel is covered with and is used to filter dirt and ventilative filter course, and this filter course has hidden described passage.

The present invention compared with prior art has following advantage:

Owing to be attached with filter course on the outer wall of inner barrel, therefore the part dust can be filtered layer filtration before entering inner barrel, make that the air-flow that enters inner barrel through passage is a clean gas flow, and the external surface area of inner barrel is big, makes described filter course to use the longer time and does not need to change.Particularly the filter course outer surface is arranged in whirlwind outer cylinder body inner chamber, and the air-flow of rotation makes that small dust granules is difficult for can making the permeability of filter course keep good in a long time attached on the filter course at a high speed.This position is used or replacing after making described filter course be easy to pull down washing again.

The invention will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is structure master's cutaway view of the present invention;

Accompanying drawing 2 is the A-A direction sectional view of accompanying drawing 1;

Accompanying drawing 3 is the structure principle chart of a kind of rotoclone collector of the prior art;

Accompanying drawing 4 is the structure principle chart of another kind of rotoclone collector of the prior art;

Accompanying drawing 5 is a structural principle sectional view of the present invention; Wherein:

[1], air-out passage; [2], interface tube; [3], air-flow rotating room; [4], whirlwind outer cylinder body; [5], filter course; [6], inner barrel; [7], passage; [8], shell of the dust collector; [9], air-flow bend; [10], bend partition; [11], bend outside inwall; [12], support frame; [13], whirlwind outer cylinder body air flow inlet;

Embodiment: referring to accompanying drawing 1, accompanying drawing 2, accompanying drawing 5, a kind of Cyclonic dust collector, the whirlwind outer cylinder body [4] that comprises next the end sealing of dust suction state is (when needing to topple over dust under the non-dust suction state, this end can be opened), the interface tube [2] that is used for the air-flow input with the intracavity inter-connection of described whirlwind outer cylinder body [4], be arranged in the inner chamber of described whirlwind outer cylinder body [4] and the inner barrel [6] coaxial with described whirlwind outer cylinder body [4], the air-out passage [1] that is used for air-flow output with the intracavity inter-connection of described inner barrel [6], described interface tube [2] can be arranged on the whirlwind outer cylinder body [4], also can be arranged on the shell of the dust collector [8].Be distributed with a plurality of passages [7] on the barrel of described inner barrel [6], this passage [7] makes the inner chamber of described inner barrel [6] and the intracavity inter-connection of described whirlwind outer cylinder body [4], described passage [7] is grid-like hole or reticulated cell, this passage [7] is after removing filter course [5], basically do not influence air-flow flows into inner barrel [6] from the inner chamber of outer cylinder body [4] inner chamber, and described passage [7] is uniformly distributed on the barrel of described inner barrel [6].The outer surface of described inner barrel [6] is covered with and is used to filter dirt and ventilative filter course [5], can adopt materials such as nonwoven, flannelette, and its gas permeability and laying dust rate all should reach the filtering layer index of dust catcher, be convenient to unpick and wash, or disposable use.This filter course [5] has hidden described passage [7], stops dust to enter the inner chamber of inner barrel [6] from passage [7].

After described filter course [5] was enclosed within on the barrel outer surface of described inner barrel [6], the outer surface of described filter course [5] was cylindrical basically, did not influence the air-flow rotation in whirlwind outer cylinder body [4] inner chamber.And described filter course [5] and detachable connection of described inner barrel [6] are used after making filter course [5] to wash again.The internal chamber wall of described inner barrel [6] is connected with support frame [12], this support frame [12] is used to support the barrel of inner barrel [6], and be provided with the air-out passage [1] that parallels along the axial line of described inner barrel [6] in this support frame [12], clean air-flow is discharged along this air-out passage [1].

One end of described inner barrel [6] is fixed in the blind end of described whirlwind outer cylinder body [4] by locking device, after described locking device release, be convenient to make inner barrel [6] to separate, can dismantle filter course [5] again, clean and topple over dust with whirlwind outer cylinder body [4].

The barrel outside of described whirlwind outer cylinder body [4] is provided with air-flow bend [9], described interface tube [2] is by the intracavity inter-connection of described air-flow bend [9] with described whirlwind outer cylinder body [4], the outside inwall at the air flow inlet place of the close whirlwind outer cylinder body [4] on the described air-flow bend [9] is called bend and cuts up with a hay cutter inwall [11] outward, the face at the face at inwall [11] place, the described bend outside and the inwall place of described whirlwind outer cylinder body [4] is tangent basically, described interface tube [2] be located substantially on described whirlwind outer cylinder body [4] the axis directly over the position, make the air-flow that has dust enter the inner chamber of whirlwind outer cylinder body [4] with the speed of maximum, be convenient to dust and air separation, and be convenient to the user around dust catcher 360 degree rotation dust suctions.

Referring to accompanying drawing 1, described whirlwind outer cylinder body [4] is involuted by the first whirlwind outer cylinder body in left side and the second whirlwind outer cylinder body two parts that have blind end on right side, wherein the first whirlwind outer cylinder body is fixed on the shell of the dust collector [8], and described interface tube [2] also is arranged on this first whirlwind outer cylinder body; The connecting portion of the described first whirlwind outer cylinder body and the second whirlwind outer cylinder body is provided with sealing ring; Described first whirlwind outer cylinder body and coaxial, the same diameter of the second whirlwind outer cylinder body, and both lock mutually by locking device.After the locking device release, the described second whirlwind outer cylinder body can take off from shell of the dust collector [8], is convenient to topple over dust and cleaning.

Claims

1, a kind of Cyclonic dust collector, the whirlwind outer cylinder body [4] that comprises next the end sealing of dust suction state, the interface tube [2] that is used for the air-flow input with the intracavity inter-connection of described whirlwind outer cylinder body [4], be arranged in the inner chamber of described whirlwind outer cylinder body [4] and the inner barrel [6] coaxial with described whirlwind outer cylinder body [4], the air-out passage [1] that is used for air-flow output with the intracavity inter-connection of described inner barrel [6], it is characterized in that: be distributed with a plurality of passages [7] on the barrel of described inner barrel [6], this passage [7] makes the inner chamber of described inner barrel [6] and the intracavity inter-connection of described whirlwind outer cylinder body [4], the outer surface of described inner barrel [6] is covered with and is used to filter dirt and ventilative filter course [5], and this filter course [5] has hidden described a plurality of passage [7].

2, Cyclonic dust collector according to claim 1 is characterized in that: described filter course [5] is enclosed within on the barrel outer surface of described inner barrel [6].

3, Cyclonic dust collector according to claim 2 is characterized in that: described filter course [5] and detachable connection of described inner barrel [6].

4, Cyclonic dust collector according to claim 1 is characterized in that: the internal chamber wall of described inner barrel [6] is connected with support frame [12], is provided with the air-out passage [1] that parallels along the axial line of described inner barrel [6] in this support frame [12].

5, Cyclonic dust collector according to claim 1 is characterized in that: an end of described inner barrel [6] is fixed in the blind end of described whirlwind outer cylinder body [4] by locking device.

6, Cyclonic dust collector according to claim 1, it is characterized in that: the barrel outside of described whirlwind outer cylinder body [4] is provided with air-flow bend [9], described interface tube [2] is by the intracavity inter-connection of described air-flow bend [9] with described whirlwind outer cylinder body [4], the outside inwall at the air flow inlet place of the close whirlwind outer cylinder body [4] on the described air-flow bend [9] is called bend and cuts up with a hay cutter inwall [11] outward, the face at the face at inwall [11] place, the described bend outside and the inwall place of described whirlwind outer cylinder body [4] is tangent basically, described interface tube [2] be located substantially on described whirlwind outer cylinder body [4] the axis directly over the position.

7, Cyclonic dust collector according to claim 1 is characterized in that: after described filter course [5] covered on the outer surface of described inner barrel [6], the outer surface of described filter course [5] was essentially cylindrical.

8, Cyclonic dust collector according to claim 1 is characterized in that: the passage [7] that has on the barrel of described inner barrel [6] is grid-like or mesh.

9, Cyclonic dust collector according to claim 1, it is characterized in that: described whirlwind outer cylinder body [4] is involuted by the first whirlwind outer cylinder body and second whirlwind outer cylinder body two parts, wherein the first whirlwind outer cylinder body is fixed on the shell of the dust collector [8], and described interface tube [2] also is arranged on this first whirlwind outer cylinder body; The connecting portion of the described first whirlwind outer cylinder body and the second whirlwind outer cylinder body is provided with sealing ring; Described first whirlwind outer cylinder body and the coaxial setting of the second whirlwind outer cylinder body, and both lock mutually by locking device.