CN103120572B - Two air inlet dirt cups and use the dust catcher of this dirt cup - Google Patents

Abstract

Pair air inlet dirt cup and use the dust catcher of this dirt cup, it comprises the dirt cup of dust catcher, and described dirt cup top offers two air inlets, and described air inlet and dirt cup perisporium are tangent. Two described air inlet Central Symmetries. The area of section sum of two described air inlets is more than or equal to the area of section of former single air inlet. The present invention is in the time that air and dust enter two air inlets, they the rotational trajectory of dirt wall of cup as the track of same double thread be the interference that can not cross one another, make full use of the separated space of original dirt cup, in the situation that keeping total intake constant, the separating effect of dirt cup will obviously improve. Have simple in structurely, easy to process, the advantage of good separating effect, can be widely applied in existing single or multiple dust separating cup.

Description

Two air inlet dirt cups and use the dust catcher of this dirt cup

Technical field

The present invention relates to a kind of for clean dust catcher, a kind of dust cup of dust collector with two air inlets and the dust catcher of this dirt cup has been installed specifically.

Background technology

Dust cup of dust collector is in the market all single air inlet, and this is because so relatively simple for structure, and in the use procedure of dust catcher, the effect that also can reach certain that separates of dust and air in dirt cup. A but if common dust cup of dust collector only once separating, it is not reach real use meaning far away, this is because the filter of dust catcher is in use blocked soon, the air quantity that enters dust catcher declines thereupon, thereby reduce the suction power of dust catcher, and separating effect can inhale poorer and poorer, make normally dust suction of dust catcher. People are in order to improve the separating effect of dust cup of dust collector, thereby maintenance suction power is constant as far as possible or few change, generally all in dirt cup, increases the separator of an one-level or two-stage again. By the separation of twice or three times, to greatest extent the dust that sucks dirt cup is separated from air, and is fallen into the dirt chamber of dirt cup bottom, make by the air of filter with few dust. In use, its filter just can be very fast not blocked and reduce and suck power, and can remain good separating effect for dust catcher like this. From the dirt cup efficiently separating in the market, the volume that is not dirt cup is exactly more greatly the comparatively complexity of structure of dirt cup inner separator, and therefore their material cost is all higher. Multistage separator sucks power because complex structure affects dust catcher toward contact meeting, and this is because its windage has increased, the cause that air quantity also reduces thereupon.

Also has the scheme of a kind of pair of dirt cup dust catcher, as the dust catcher of application number 200610085862.4. The separating effect of this pair of dirt cup is to increase than common single dirt cup under certain condition, but the diameter that its most important condition is each dirt cup can only be slightly less than single dirt cup, and otherwise, its effect is also limited. While doing gyration according to particle, the computing formula (φ=-m ω 2r) that acts on the normal inertial force (centrifugal force) on particle can illustrate this point. When dust particle is done tangential gyration along dirt wall of cup, in the case of the suction of electric fan is constant, angular velocity omega is also relatively stable, and the centrifugal force that acts on particle is directly proportional to the radius of gyration. So the cost of dirt cup and main frame will improve a lot, and its volume is larger, packaging and also corresponding increase of cost of transportation. In order to make dirt cup volumes be unlikely to excessive, be also all designed to secondary separation. Also have similar product to rarely have listing abroad, because cost of manufacture is high not by popularization and application, so the Practical significance of two dirt cups little.

Patent Office of the People's Republic of China is disclosed on September 24th, 2008, the patent No. is 200610077973.0 " a kind of multi-air intake separator and the cup device for dust that contains this device ", comprise the circular cylinder body and the conical shell that connect up and down, coaxially be arranged on the discharge pipe of circular cylinder body inside, the sidewall of described circular cylinder body is connected with two center lines and is involute shape, longitudinal cross-section is the blast pipe of rectangle, two blast pipes height and position on circular cylinder body is identical, circumferential position staggers 180 °, their air inlet is positioned at through the same plane of the axis of circular cylinder body and towards the opposite. this is a separator for the second-order separation dirt cup, and this separator has two air inlets, offers in order to improve separating effect. although the air that dust catcher sucks and dust separating through first order dirt cup, the existing institute of dust that enters second level separator reduces, but it is very difficult here dust and air will being separated completely, because one, the separating effect of common single air inlet dirt cup is limited, still there is more dust not separate, two, the air sucking all will pass through this narrow space, and the distance that is positioned at the air outlet at separator center and the tangent air inlet of separator is too near. although multiple separators can be set side by side in dirt cup, the cost of product will increase a lot, and its cost performance is therefore not high yet. only have and improve to greatest extent the separating effect that the first order is dirt cup, just can make the effect of second level separator perform to ultimate attainment. in the time of common cyclone separating type dust remover work, in observation dirt cup, the path of dust and air separation process can be found, at the bottom of isolated dust drops to from above glass, only rotate about one week, that is to say that an of such a size dirt cup has only utilized a part of rotating separation space. so making full use of the separated space of dirt cup can yet be regarded as one and improves the approach of separating effect.

Summary of the invention

The object of the invention is to defect and deficiency for above-mentioned prior art, for people provide a kind of separated space that can make full use of original dirt cup, improve two air inlet dirt cups of separating effect and use the dust catcher of this dirt cup.

The technical solution used in the present invention is for achieving the above object: this pair of air inlet dirt cup, and it comprises the dirt cup of dust catcher, and described dirt cup top offers two air inlets, and described air inlet and dirt cup perisporium are tangent.

Two described air inlet Central Symmetries.

The area of section sum of two described air inlets is more than or equal to the area of section of former single air inlet.

A kind of dust catcher that uses two air inlet dirt cups, it comprises fuselage and is arranged at the dirt cup of fuselage side, fuselage chassis place is provided with blast pipe, described dirt cup top offers two air inlets, described air inlet and dirt cup perisporium are tangent, on described blast pipe, be connected with two brasnch conducts, brasnch conduct upwards bends after extension respectively with the air inlet of corresponding dirt cup and docks by the mode of inserting or buckle.

Described brasnch conduct has at least one to be segmentation, comprises horizontal fixed tube and longitudinal moving pipe, hinged by tubular axis between fixed tube and moving pipe.

Be segmentation away from a brasnch conduct of vacuum cleaner body.

The present invention is in the time that air and dust enter two air inlets, they the rotational trajectory of dirt wall of cup as the track of same double thread be the interference that can not cross one another, make full use of the separated space of original dirt cup, in the situation that keeping total intake constant, the separating effect of dirt cup will obviously improve. Having installed in the dust catcher of this dirt cup, because a brasnch conduct is wherein segmentation, can be to inner rotary, brasnch conduct and dirt cup are thrown off, facilitate the dismounting of dirt cup. Have simple in structurely, easy to process, the advantage of good separating effect, can be widely applied in existing single or multiple dust separating cup.

Brief description of the drawings

Fig. 1 is the structural representation of dirt cup of the present invention.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is that dirt cup of the present invention is arranged on the structural representation in dust catcher.

Fig. 4 is that the B of Fig. 3 is to view.

Fig. 5 is that the C of Fig. 3 is to view.

Fig. 6 is that the D of Fig. 4 is to view.

Detailed description of the invention

Show as shown in Figure 1, Figure 2, the present invention is this pair of air inlet dirt cup, and it comprises the dirt cup 1 of dust catcher, and described dirt cup 1 top offers two air inlets 2, and described air inlet 2 is tangent with dirt cup 1 perisporium, and two described air inlet 2 Central Symmetries. In the time that air and dust enter two air inlets 2, they if the track of same double thread is the interference that can not cross one another, make full use of the separated space of original dirt cup 1 at the rotational trajectory of dirt cup 1 wall. The area of section sum of two described air inlets 2 is more than or equal to the area of section of former single air inlet, so that intake increases or keeps original constant.

The separating effect of two air inlet dirt cups is better than single air inlet dirt cup, and mainly containing three aspects: reason affects.

The one, along the entrained dust of dirt wall of cup swirling eddy, for each air inlet, single air inlet is than many one times of two air inlets, and they can not be all close to the rotation of dirt wall of cup and fall, and have considerable part dust along with the air-flow of direct sucking-off dirt cup is taken out of. And the monolateral amount of dust of entering of two air inlets is a half left and right relatively, these dust particles can be relatively close to the rotation of dirt wall of cup and fall under the effect of centrifugal force, are difficult for along with the air-flow of direct sucking-off dirt cup is taken out of.

The 2nd, under the centrifugal action that in dirt cup, dust particle produces at the suction of dust catcher electric fan, with air separation, air is extracted out through dirt cup air outlet. But air must be through being arranged on filter or the second-stage separator of top, Chen Bei center. For single air inlet, because air-flow and dust are concentrated as one, the fractional dose of air will be given a discount, this is because it can not balancedly isolate dirt cup by filter or second-stage separator etc., so at the bottom of having part air to follow dust rotational flow to fall dirt cup, air and dust separation obtain not thorough. And two air inlets are because air stream is divided into two strands symmetrically, it can more balancedly isolate dirt cup by screen pack etc., so air can be isolated to dirt cup fully.

The 3rd, at the bottom of dust follows part air rotational flow to fall dirt cup time, because the inertia of air-flow can also stir to such an extent that kick up all dusts that have the cup end, fraction dust can be taken out of dirt cup by air-flow so again, and air quantity is larger, stir effectivelyer, the dust of being taken out of by air-flow is just more. Throughput at the bottom of single air inlet is fallen glass is many, stirs energeticallyer, and the throughput also much less of two air inlet at the bottom of falling glass, so stir just much disappointing, the dust of being taken out of by air-flow is like this just relatively much few.

So on same dirt cup, in the situation that air quantity is equal, the effect that two air inlet dirt cups separate air and dust than single air inlet dirt cup is much better.

As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, a kind of dust catcher that two air inlet dirt cups have been installed, it comprises fuselage 4 and is arranged at the dirt cup 1 of fuselage 4 sides, fuselage 4 chassis places are provided with blast pipe 3, described dirt cup 1 top offers two air inlets 2, described air inlet 2 is tangent with dirt cup 1 perisporium, is connected with two brasnch conducts 5 on described blast pipe 3, and brasnch conduct 5 docks by mode slotting or that buckle with the air inlet 2 of corresponding dirt cup 1 respectively after upwards bend and extending. Described brasnch conduct 5 has at least one to be segmentation, comprises horizontal fixed tube 5.3 and longitudinal moving pipe 5.1, hinged by tubular axis 5.2 between fixed tube 5.3 and moving pipe 5.1. Pipe 5.1 can be rotated relative to fixed tube 5.3. Moving pipe 5.1, making the upper end of brasnch conduct 5 and the air inlet 2 of dirt cup 1 dock in the time that dirt cup 1 rotates, moves pipe 5.1 in the time outwards rotating, and brasnch conduct 5 is thrown off with the air inlet 2 of dirt cup 1, to facilitate the dismounting of dirt cup 1. Be wherein segmentation away from a brasnch conduct 5 of vacuum cleaner body 4, and identical with the conduit of original single air inlet dirt cup near a brasnch conduct 5 of fuselage 4, without rotation. Doing is like this because have larger activity space away from the brasnch conduct 5 of vacuum cleaner body, can significantly rotate, and in the time that needs are dismantled dirt cup 1, only needs outwards to rotate the moving pipe 5.1 away from the brasnch conduct 5 of fuselage 4, very convenient.

Claims (5)

1. two air inlet dirt cups, it comprises and the dirt cup (1) of dust catcher it is characterized in that described dirt cup (1) top offers two air inlets (2), described air inlet (2) is tangent with dirt cup (1) perisporium; Described two air inlets (2) Central Symmetry, make air and dust at the rotational trajectory of dirt cup (1) inwall as the track of same double thread, interference can not cross one another.

2. according to claim 1 pair of air inlet dirt cup, is characterized in that the area of section sum of described two air inlets (2) is more than or equal to the area of section of former single air inlet.

3. one kind uses the dust catcher of two air inlet dirt cups, it comprises fuselage (4) and is arranged at the dirt cup (1) of fuselage (4) side, fuselage (4) chassis place is provided with blast pipe (3), it is characterized in that described dirt cup (1) top offers two air inlets (2), described air inlet (2) is tangent with dirt cup (1) perisporium; Described two air inlets (2) Central Symmetry, make air and dust at the rotational trajectory of dirt cup (1) inwall as the track of same double thread, interference can not cross one another; On described blast pipe (3), be connected with two brasnch conducts (5), brasnch conduct (5) docks by the mode of inserting or buckle with the air inlet (2) of corresponding dirt cup (1) respectively after upwards bending and extending.

4. the dust catcher of the two air inlet dirt cups of use according to claim 3, it is characterized in that described brasnch conduct (5) has at least one to be segmentation, comprise horizontal fixed tube (5.3) and longitudinal moving pipe (5.1), hinged by tubular axis (5.2) between fixed tube (5.3) and moving pipe (5.1).

5. the dust catcher of the two air inlet dirt cups of use according to claim 4, what to it is characterized in that away from a brasnch conduct (5) of vacuum cleaner body (4) be segmentation.