Without hindrance filter bay assembly
Technical field
The utility model relates to dust arrester, is specially adapted to the filter bay assembly in the sack cleaner.
Background technology
Sack cleaner is that the scope of application is a kind of widely in the dust arrester, and the filter bay assembly in the present known sack cleaner is made up of filter bag, bag cage etc.This filter bay assembly is by card or claim the through hole on the porous plate to insert in the casing of sack cleaner, relies on the spring piston ring sealing of filter bag head to embed in the through hole of card, realizes the buffer action of deduster dust-laden casing and pure qi (oxygen) casing.In the prior art, the card through-hole diameter than the value added of filter bag nominal diameter generally in 8mm, in the pure qi (oxygen) casing of sack cleaner, after the bag cage composite bag cage of Venturi tube (or contain) inserts in the filter bag, support filter bag, make deduster in operate as normal, filter bag can not inhaled flat, and bag cage upper end is laid or is fixed on card by structures such as bag cage adapters or claims on the porous plate.From with the contacting of dust, the outside of filter bag is a dust-collecting face, the inner face of filter bag is clean face.
In the use of reality, because dust has cohesion, holds back in the process that filter bag of dust collector captures, diffusion, static, vibrations, heat, comprehensive function such as wet, and the inherent characteristic separately of dust and filtrate, often make after work a period of time, the maximum outside diameter of filter bag increases voluntarily, cause in sack cleaner maintenance, maintenance or replacing filter bay assembly process, filter bay assembly can't normally take out from the card through hole.This brings difficulty not only for the maintenance of deduster, and under many circumstances, could take out after bag cage can only be cut or damaged to intact filter bag artificially.The result causes unnecessary economic loss, also causes more pollution to environment simultaneously.So, a kind ofly can satisfy the sack cleaner instructions for use, solve above-mentioned in-problem filter bay assembly economical and technical all be very urgent.
The design people at above problems of the prior art, proposes without hindrance filter bay assembly of the present utility model based on the research and development for many years to filter bag of dust collector, can overcome defective wherein effectively.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of without hindrance filter bay assembly, it can be when not changing the deduster size and suitably increasing the filter bay assembly filter area, when effectively solving the sack cleaner maintenance, safeguard or changing the filter bag dismounting,, filter bag make external diameter increase the problem that from the card through hole, to take out voluntarily because in use being subjected to influence such as variations in temperature because of dust stratification or material.
For this reason, a kind of without hindrance filter bay assembly of the present utility model, it comprises a filter bag, this filter bag is nested with outside one bag of cage, the upper shed portion diameter of filter bag and the difference of bag nominal diameter are more than or equal to 8mm, be positioned at its peristome place and form a taper changeover portion on the length direction below the card, described filter bag upper shed portion fixes on the card through hole, being provided with one bag of cage between the upper shed portion of card and bag cage takes over, the adapter of this bag cage is inverted U-shaped ring for the cross section, extend downwards on the both sides of this U-loop, is crossed on respectively between the upper shed portion of card and bag cage.
Aforesaid without hindrance filter bay assembly, wherein, the inverted U-shaped cross section outer shroud length of side that described bag cage is taken over is less than the interior ring length of side, described outer shroud minor face is arranged on the described filter bag outside and engages with card, the long limit of ring is arranged on described filter bag inboard in described, and fixedly connected with the outer peripheral face of described bag cage, described bag cage upper shed portion diameter is less than the filter bag nominal diameter.
Aforesaid without hindrance filter bay assembly, wherein, the bottom, the long limit of interior ring that described bag cage is taken over has at least one elasticity block end to a lateral bending song.
Aforesaid without hindrance filter bay assembly, wherein, described elasticity block end forms an elastic piston ring to bag cage outside curve, the described filter bag of elastic piston ring outside contact of this elasticity block end.
Aforesaid without hindrance filter bay assembly, wherein, described elasticity block end is to the bending of described bag cage side, and formation has the structure of a conial ring shape, and fixedly connected with the outer peripheral face of described bag cage in its end.
Aforesaid without hindrance filter bay assembly wherein, is fixed a round steel ring on the bag cage of described bag cage and filter bag changeover portion, and this round steel ring squeezes and withstands between bag cage and the filter bag.
Aforesaid without hindrance filter bay assembly, wherein, described bag cage is taken over the cross section and is equilateral inverted U-shaped ring-type, it is positioned at the filter bag outside on one side and engages with card, another side is fixedly connected on the upper end outer peripheral face of described bag cage, described bag cage has a wide diameter portion, and this wide diameter portion is arranged on the corresponding position of taper changeover portion with described filter bag.
Without hindrance filter bay assembly of the present utility model compared with prior art, the advantage and the characteristics that possess are:
1, without hindrance filter bay assembly of the present utility model is by increasing the head diameter of filter bag, changeover portion filter bag and changeover portion bag cage are set to be taken over, under the prerequisite of the nominal diameter that does not change former filter bag and bag cage, increase the diameter of card through hole, thereby, the without hindrance dismounting filter bay assembly of energy takes out it easily from the card through hole in maintenance.
2, without hindrance filter bay assembly of the present utility model since adopted with prior art in the contour cone changeover portion of cylinder, and the diameter of its cone small end equates with straight tube cylinder diameter of the prior art, therefore, this cone is compared with contour cylinder, the increase of its surface area is exactly the increase of filter bag filter area.
3, without hindrance filter bay assembly of the present utility model is simple in structure, number of components is few, possesses good serviceability, because structural ingenious, installation and removal are the facility of ten minutes also simultaneously.
Description of drawings
Fig. 1 is that without hindrance filter bay assembly of the present utility model is contained in the first embodiment profile in the card through hole, and wherein a bag cage is taken over corresponding filter bag changeover portion place and formed an elastic piston ring;
Fig. 2 is that without hindrance filter bay assembly of the present utility model is contained in the second embodiment profile in the card through hole, and wherein the interior ring of bag cage adapter is the changeover portion of a conial ring shape;
Fig. 3 is that without hindrance filter bay assembly of the present utility model is contained in the 3rd embodiment profile in the card through hole, wherein is provided with the round steel ring between filter bag changeover portion and the bag cage;
Fig. 4 is that without hindrance filter bay assembly of the present utility model is contained in the 4th embodiment profile in the card through hole, and wherein the adapter of bag cage is bonded into changeover portion with the bag cage muscle of head bending;
Fig. 5 is the partial enlarged drawing at I place among Fig. 1;
Fig. 6 is the partial enlarged drawing at II place among Fig. 4.
Label declaration
1, filter bag 2, bag cage 3, card 4, bag cage adapter 5, Venturi tube
6, filter bag connecting portion
The specific embodiment
Now, further set forth the technical solution of without hindrance filter bay assembly of the present utility model, the technique effect that will reach and technical problem to be solved by explanation to the specific embodiment.
See also Fig. 1, the principle of without hindrance filter bay assembly of the present utility model at first is described, without hindrance filter bay assembly of the present utility model is under the prerequisite of the nominal diameter that does not change former filter bag and bag cage, increase the diameter of card through hole, make the card through-hole diameter than the filter bag nominal diameter greater than 8mm, or equal 8mm, because card through hole footpath is big, therefore when changing filter bay assembly, can dismantle like a cork.After the card through hole directly increases, the elastic piston ring of filter bag upper end and bag cage are taken over also will be with the corresponding increase in footpath of card through hole, for this reason with the filter bag upper end, between the elastic piston ring increased in size of filter bag upper end and the nominal filter bag and the bag cage that increases take over difference in size between the bag cage of size and nominal, by changeover portion realization connection.
Embodiment one
See also Fig. 1, it is that without hindrance filter bay assembly of the present utility model is contained in the first embodiment profile in the card through hole.In the present embodiment, without hindrance filter bay assembly of the present utility model comprises a filter bag 1, this filter bag 1 is nested with outside one bag of cage 2, upper shed portion at filter bag 1 is provided with filter bag connecting portion 6, filter bag connecting portion 6 fixes on the card through hole of card 3 by elastic piston ring, the upper shed portion diameter of described filter bag 1 and the difference of bag nominal diameter are more than or equal to 8mm, be positioned at its peristome place and form a taper changeover portion 11 on the length direction below the card, the diameter of bag cage 2 can be the bag cage size of a nominal less than the nominal diameter of filter bag 1.Between the oral area of card 3 and bag cage 2, be provided with one bag of cage and take over 4, this bag cage takes over 4 for the cross section is inverted U-shaped ring, and extend downwards on the both sides of this U-loop, is connected across the oral area of card and bag cage respectively, one Venturi tube 5 is arranged on this bag cage and takes on 4, and extend in bag cage 2.
See also Fig. 5, the bag cage takes over 4 for the cross section is unequal-sided inverted U-shaped ring, and the outer shroud length of side is less than the interior ring length of side in the present embodiment.Described outer shroud minor face is positioned at the outside of filter bag 1 and engages with card 3, and the inboard that the long limit of described interior ring is provided with described filter bag 1 is close on the periphery of bag cage 2, and fixedlys connected with described bag cage 2.The long limit of interior ring of described bag cage adapter 4 has at least one elasticity block end to a lateral bending song, be a crooked laterally elasticity block end 7 in the present embodiment, this elasticity block end 7 forms an elastic piston ring, the taper changeover portion 11 of the described filter bag 1 of its outside contact.
In the present embodiment, the card through-hole diameter is big than the filter bag nominal diameter, and utilizes the bag cage to take over the long limit of interior ring of 4 to fixedly connected with described bag cage 2, and the taper changeover portion 11 of the described filter bag 1 of elasticity block end 7 contacts and realize the transition connection.
As shown in Figure 1, in the present embodiment, for example setting the card through hole is φ 168.5mm, the filter bag nominal diameter adopts known φ 150mm constant, make the value added of card through-hole diameter and filter bag nominal diameter greater than 8mm, and the flange of Venturi tube 5, the bag cage is taken over 4 the corresponding increase of diameter, thereby in maintenance, can easily filter bay assembly be taken out from the card through hole, can unhinderedly maintain.
In addition, owing to fixedly connected with described bag cage 2 in the long limit of interior ring of bag cage adapter 4, and the taper changeover portion 11 of the described filter bag 1 of elasticity block end 7 contacts, therefore the peristome of filter bag 1 and the gap between the bag cage 2 have been eliminated, in work and deashing process, reduce the shake of filter bag, the mission life-span of improving the changeover portion filter bag.
Embodiment two
See also Fig. 2, it is that without hindrance filter bay assembly of the present utility model is contained in the second embodiment profile in the card through hole.In the present embodiment, without hindrance filter bay assembly of the present utility model comprises a filter bag 1, and this filter bag 1 is nested with outside one bag of cage 2, is provided with filter bag connecting portion 6 in upper shed place of filter bag 1, and filter bag connecting portion 6 fixes on the card through hole of card 3 by elastic piston ring.Between the oral area of card 3 and bag cage 2, be provided with one bag of cage adapter 4, one Venturi tube 5 and be arranged in this bag cage adapter 4, and extend in bag cage 2.Wherein the adapter 4 of bag cage is unequal-sided inverted U-shaped ring for the cross section, different with embodiment one is, described elasticity block end 71 be the long limit of the interior ring of U-loop to the 2 side bendings of described bag cage, its underpart diameter forms on the periphery that a circular cone ring is close to bag cage 2 and with it less than upper diameter and fixedlys connected.This is simple in structure, and is easily manufactured.
Other do not state the explanation of content and structure with above-mentioned embodiment, do not repeat them here.
Embodiment three
See also Fig. 3, it is that without hindrance filter bay assembly of the present utility model is contained in the 3rd embodiment profile in the card through hole.In the present embodiment, without hindrance filter bay assembly of the present utility model comprises a filter bag 1, and this filter bag 1 is nested with outside one bag of cage 2, is provided with filter bag connecting portion 6 in upper shed place of filter bag 1, and filter bag connecting portion 6 fixes on the card through hole of card 3 by elastic piston ring.Between the oral area of card 3 and bag cage 2, be provided with one bag of cage adapter 4, one Venturi tube 5 and be arranged in this bag cage adapter 4, and extend in bag cage 2.It is that a cross sectional shape is unequal-sided inverted U-shaped ring that described bag cage takes over 4, in the present embodiment, wherein the adapter 4 of bag cage is unequal-sided inverted U-shaped ring for the cross section, the outer shroud minor face is positioned at outside the filter bag connecting portion 6 and with card 3 and engages, in to be positioned at filter bag inboard and be close on the periphery of bag cage 2 and fixedly connected with the bag cage on ring long limit, on the bag cage between the changeover portion 11 of bag cage 2 and filter bag 1, fix a round steel ring 8.
With the foregoing description one, among the embodiment two the bag cage take over elasticity block end that 4 the long limit of interior ring constitutes 7,71 different be, in the present embodiment, the maximal clearance between the opening of having eliminated filter bag 1 by round steel ring 8 and bag cage 2.Because the long limit of interior ring need not bending, therefore is easy to processing and manufacturing more.In the present embodiment, the cross section of described bag cage adapter 4 also can be an equilateral inverted U-shaped ring.
Other do not state the explanation of content and structure with above-mentioned embodiment, do not repeat them here.
Embodiment four
See also Fig. 4,6, it is that without hindrance filter bay assembly of the present utility model is contained in the 4th embodiment profile in the card through hole.In the present embodiment, without hindrance filter bay assembly of the present utility model comprises a filter bag 1, and this filter bag 1 is nested with outside one bag of cage 2, is provided with filter bag connecting portion 6 in upper shed place of filter bag 1, and filter bag connecting portion 6 fixes on the card through hole of card 3 by elastic piston ring.Between the oral area of card 3 and bag cage 2, be provided with one bag of cage adapter 4, one Venturi tube 5 and be arranged in this bag cage adapter 4, and extend in bag cage 2.
In the present embodiment, the adapter 4 of bag cage is equilateral inverted U-shaped ring for the cross section, it is positioned at filter bag 1 outside on one side and engages with card 3, another side is close on the periphery of bag cage 2 and with bag cage 2 fixedlys connected, described bag cage 2 has a wide diameter portion 21, and this wide diameter portion 21 is arranged on the taper changeover portion 11 corresponding positions with described filter bag 1.
In the present embodiment, wherein above-mentioned elasticity block end is made of the bending of bag cage muscle one.
Other do not state the explanation of content and structure with above-mentioned embodiment, do not repeat them here.
Only the above person only is a specific embodiment of the utility model, can not limit the scope that the utility model is implemented with it.So the amplification of its equivalent assemblies is dwindled, displacement, or, all still belong to the covering scope of the utility model claims according to equivalent variations and modification that the utility model scope of patent protection is done.