CN102599857A - Dust bag for vacuum dust collector - Google Patents
Dust bag for vacuum dust collector Download PDFInfo
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- CN102599857A CN102599857A CN2011100261309A CN201110026130A CN102599857A CN 102599857 A CN102599857 A CN 102599857A CN 2011100261309 A CN2011100261309 A CN 2011100261309A CN 201110026130 A CN201110026130 A CN 201110026130A CN 102599857 A CN102599857 A CN 102599857A
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- bayonet socket
- vacuum cleaner
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Abstract
The invention provides a dust bag for a vacuum dust collector, which comprises an inner bag (21) and an outer bag (23). Mouths of the inner bag (21) and the outer bag (23) are respectively fixed on a locking plate (25) hermetically. The locking plate (25) is provided with an air inlet (27). The inner bag (21) and the locking plate (25) encircle to form an inner bag space (100). The inner bag (21) and the outer bag (23) are arranged at intervals. A gap (20) is reserved between the inner bag (21) and the outer bag (23). The outer bag (23), the inner bag (21) and the locking plate (25) encircle to form an outer bag space (200). An airflow channel is arranged between the inner bag space (100) and the outer bag space (200). The dust bag for the vacuum dust collector is simple in structure, is convenient to use and free from suction loss or has extremely low suction loss and does not need to be changed frequently, the service life of the dust bag is effectively improved, and the cost is saved.
Description
Technical field
The present invention relates to a kind of dust bag, relate in particular to a kind of vacuum cleaner bags, belong to vacuum cleaner manufacturing technology field.
Background technology
Vacuum cleaner in the market has polytype, as: dirt bag dust catcher, cyclonic separation dust catcher are arranged.Wherein dirt bag dust catcher is arranged since have volume little, cheap, advantage such as be simple and easy to use and liked by the user.Mainly form by dirt bag dust catcher by screen pack behind screen pack, motor, the motor before scrubbing brush, dust bag, the motor.Dirt bag dust catcher when work arranged, separate after the air-flow that has a dust is drawn into dust bag by scrubbing brush, dust is trapped in the dust bag, and the air communication after the separation is crossed before the motor screen pack and filtered the back and get into motor and filter the back through screen pack behind the motor and discharge.It is that after use a period of time, dust bag can be blocked, the dust bag of having to more renew through the dust in the dust bag interception air-flow that yet dirt bag dust catcher is arranged.
Traditional dust bag all is an individual layer, and the filtering material that adopts usually is fiber, plastics, woven etc.But after the dust bag of above-mentioned single layer structure used a period of time, the blocked interception dust ability that promptly loses of dust bag individual layer had to more renew dust bag.
In order to let dust bag can tackle fine dust, or prolong service life of dust bag, also adopt the dust bag structural design of a kind of bilayer or multilayer in the prior art usually.Fig. 1 is the longitudinal sectional view of existing ectonexine bonding connection structure dust bag, and as shown in Figure 1, dust bag 1 has inner layer bag 11, outer bag 13 and bayonet socket plate 12, inner layer bag 11 with outer bag 13 bonding connections be in the same place.Because this bilayer dust bag outer bag 13 is different with the pore size of the unlike material that inner layer bag 11 is adopted, thereby improve the interdiction capability of tiny micronic dust.Perhaps inner layer bag 11 adopts tough and tensile material interception to have much the destructive dust of corner angle, and outer bag 13 adopts common material to tackle tiny micronic dust, thereby improves the survivability of dust bag.After the dust bag of above-mentioned ectonexine bonding connection structure uses a period of time, lose interception dust ability equally after dust bag inner layer bag 11 or outer bag 13 are blocked, have to more renew dust bag.
No matter this shows, be that the dust bag of individual layer or ectonexine bonding connection structure all exists short defective in service life.In addition, existing dust bag is after sucking dust, because filter course stops up, suction can descend 10%～50%.And when using of home make common dust bag, adopt the test of row internal standard suction losses, the dust catcher suction losses is basically more than 30%.Dust bag filter course part is blocked after using a period of time, and the dust catcher suction losses surpasses at 50% o'clock, the pick-up performance of grievous injury dust catcher, significant wastage electric energy.This shows traditional bigger defective of suction losses that also exists when having dirt bag vacuum cleaner to adopt domestic common dust bag.
Summary of the invention
Technical problem to be solved by this invention is the deficiency to prior art, and a kind of vacuum cleaner bags is provided, and it is simple in structure, easy to use, no suction losses or few suction losses, and longer service life, needn't frequent change.
Technical problem to be solved by this invention realizes through following technical scheme:
A kind of vacuum cleaner bags comprises inner layer bag and outer bag, and both sack difference sealing and fixing are on the bayonet socket plate; Offer air inlet on the bayonet socket plate; Described inner layer bag and bayonet socket plate are enclosed to form the inner bag space, and described inner layer bag and outer bag are provided with at interval, leave the gap between the two; Described outer bag, inner layer bag and bayonet socket plate are enclosed to form outer bag space, are provided with gas channel between described inner bag space and the outer bag space.
According to the different structure of dust bag, described gas channel can be for being opened in the bleeder port on the inner layer bag; If said bayonet socket plate has the fixedly flange of inner layer bag sack, then described gas channel is the bleeder port that is opened on the flange.
In order to be provided with conveniently, the cross section in described gap is provided with in the form of a ring, forms annular space.
In order to reduce suction losses, the area of the cross-sectional area >=air inlet in described gap.
Described bleeder port is 1, is opened in the upside of air inlet.Perhaps described bleeder port is a plurality of, and is evenly to be provided with.Described bleeder port is opened in the scope that is positioned at bayonet socket plate inner surface to inner layer bag bag length 1/2, and the area of the area >=air inlet of bleeder port.
The bag filtering material of described inner layer bag and outer bag is the combination of one or more materials in fibrous material, woven, nonwoven, the plastics.
In sum, vacuum cleaner bags provided by the present invention, simple in structure, easy to use, no suction losses or few suction losses needn't frequent change, effectively raise the service life of dust bag, practice thrift cost.
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is at length explained.
Description of drawings
Fig. 1 is the longitudinal sectional view of existing ectonexine bonding connection structure dust bag;
Fig. 2 is the dust bag longitudinal sectional view of the embodiment of the invention one core band bleeder port;
Fig. 3 is the dust bag perspective view of a plurality of bleeder ports of the embodiment of the invention two core bands;
Fig. 4 is the dust bag longitudinal sectional view of the embodiment of the invention three bayonet socket strip bleeder ports;
Fig. 5 is the dust bag longitudinal sectional view of a plurality of bleeder ports of the embodiment of the invention four bayonet socket strips.
The specific embodiment
Embodiment one
Fig. 2 is the dust bag longitudinal sectional view of the embodiment of the invention one core band bleeder port; As shown in Figure 2, dust bag 2 of the present invention adopts the ectonexine structure, comprises inner layer bag 21 and outer bag 23; Both sack difference sealing and fixing are on bayonet socket plate 25; Offer air inlet 27 on the bayonet socket plate 25, described inner layer bag 21 is enclosed to form inner bag space 100 with bayonet socket plate 25, and described inner layer bag 21 is provided with outer bag 23 at interval; There is not bonding connection between inner layer bag 21 and the outer bag 23; Leave gap 20 between the two, described outer bag 23, inner layer bag 21 and bayonet socket plate 25 are enclosed to form outer bag space 200, are provided with gas channel between described inner bag space 100 and the outer bag space 200.Generally, different according to inner layer bag 21, the outer bag 23 of dust bag 2, and the structure of bayonet socket plate 25 is different with the connected mode of bayonet socket plate 25, gas channel offer also difference to some extent of position.In the present embodiment, described gas channel is the bleeder port 29 that is opened on the inner layer bag 21.
Wherein, for easily manufactured, gap 20 cross-sectional areas can be provided with circlewise, form annular space.In order to reduce suction losses, the area of the cross-sectional area >=air inlet 27 in described gap 20.In order to reduce suction losses, described inner layer bag 21 offers bleeder port 29 near air inlet 27 places of bayonet socket plate 25, is opened in the scope that is positioned at bayonet socket plate 25 to inner layer bag 21 bag length 1/2 equally.Because dust is progressively to be piled up by the direction of position to the air inlet 27 that is positioned at dust bag bayonet socket plate 25 opposite faces, if bleeder port is set in place in bayonet socket plate 25 to inner layer bag 21 bag length during greater than 1/2 scope, the service efficiency of dust bag reduces.Like this, after containing the dust air communication and crossing air inlet 27 in the bayonet socket plate 25 and get into dust bags, because effect of inertia, most of dust is trapped in the inner layer bag 21, only has small amount of dust to escape into outer bag 23 through bleeder port 29.After work a period of time, even inner layer bag 21 is blocked, the air-flow that gets into dust bag still can be realized the function of no suction losses or few suction losses through getting into motor again behind the bleeder port 29 entering outer bags 23; And this dust bag is only after inner layer bag 21, outer bag 23 are all blocked, and the dust bag that just need more renew effectively raises service life of dust bag, practices thrift cost.
According to hydrodynamics Bernoulli Jacob flow equation:
P+ ρ gh+ (1/2) * ρ v^2=constant
P wherein: the pressure of fluid, ρ: the density of fluid, v: represent fluid velocity, H: plumb height, g: acceleration of gravity.
Can know that from following formula under the constant situation of other conditions, drawn by conservation of energy principle: flow velocity eminence pressure is low, flow velocity lower pressure is high.When air communication was crossed air inlet 27 entering bleeder ports 29, because the mechanical energy of motor is constant, if bleeder port 29 areas are littler than air inlet 27 areas, then air velocity was accelerated, and pressure reduces, and causes suction losses.In order better to reduce suction losses, the present invention designs the area of the area of bleeder port 29 more than or equal to air inlet 27, makes that the suction losses of dust catcher is less.Adopt the test of row internal standard, even adopt the dust bag of domestic common material, the suction losses of dust catcher is smaller or equal to 5%.Same principle is in order better to reduce suction losses, the area of gap 20 cross-sectional areas >=air inlet 27.But the own volume of dust storage chamber that holds dust bag owing to dust catcher is less, makes that the volume of dust bag is unsuitable excessive.Thereby the gap 20 between inner layer bag 21 and the outer bag 23 is unsuitable excessive, under the situation of gap 20 cross-sectional areas more than or equal to the area of air inlet 27 of between, makes that gap 20 between the two is as far as possible little.
Embodiment two
Fig. 3 is the dust bag perspective view of a plurality of bleeder ports of the embodiment of the invention two core bands.As shown in Figure 3; The invention discloses the dust bag of the ectonexine structure of another kind of porous; Bleeder port 29 evenly is opened on the inner layer bag 21, and porous is evenly distributed on the scope that is positioned at bayonet socket plate 25 to inner layer bag 21 bag length 1/2, and total area of porous is more than or equal to the area of air inlet 27.
Identical with embodiment one is that when dust got into outer bags 23 through bleeder port 29, because the gravity effect, a part of dust that is positioned at outer bag 23 upper surfaces still can be fallen into inner layer bag 21, thereby reduces the dust that gets into outer bag 23, avoids outer bag 23 blocked.Bleeder port 29 is opened in the scope that is positioned at bayonet socket plate 25 to inner layer bag 21 bag length 1/2, because effect of inertia, the dust in the air-flow seldom escapes into outer bag 23 at the bleeder port 29 of front end.In order to reduce suction losses, the gross area of a plurality of bleeder ports 29 is more than or equal to the area of air inlet 27, and gap 20 cross-sectional areas between the inside and outside bag are more than or equal to the area of air inlet 27.Through the setting of above bleeder port 29, gap 20 cross-sectional areas size, adopt the test of row internal standard, even adopt domestic common dust bag, the suction losses of dust catcher is smaller or equal to 5%.
Embodiment three
Increased the complexity that the dust bag inner bag is made virtually owing on inner bag, offer bleeder port.The industrialized production of the inside and outside bag of dust bag for ease, in the present embodiment, gas channel is the bleeder port that is opened on the bayonet socket plate, but not is opened on the dust bag inner bag.
Fig. 4 is the dust bag longitudinal sectional view of the embodiment of the invention three bayonet socket strip bleeder ports.As shown in Figure 4, dust bag of the present invention adopts the ectonexine structure, comprises inner layer bag 21 and outer bag 23, and both sacks sealing and fixing respectively offer air inlet 27 on the bayonet socket plate 25 on bayonet socket plate 25.Special, inner layer bag 21 sacks are fixed on the flange 251 of bayonet socket plate 25.Described inner layer bag 21 is enclosed to form inner bag space 100 with bayonet socket plate 25; Described inner layer bag 21 is provided with outer bag 23 at interval; There is not bonding connection between inner layer bag 21 and the outer bag 23; Leave gap 20 between the two, described outer bag 23, inner layer bag 21 and bayonet socket plate 25 are enclosed to form outer bag space 200, are provided with gas channel between inner bag space 100 and the outer bag space 200.Specifically, said gas channel is opened on the flange 251 of bayonet socket plate 25, and this gas channel is a bleeder port 29, makes the air-flow that gets into dust bag to get into outer bag through this bleeder port 29.Like this, after containing the dust air communication and crossing air inlet 27 in the bayonet socket plate 25 and get into dust bags, because effect of inertia, most of dust is trapped in the inner layer bag 21, only has small amount of dust to escape into outer bag 23 through bleeder port 29.After work a period of time, even inner layer bag 21 is blocked, the air-flow that gets into dust bag still can be realized the function of no suction losses or few suction losses through getting into motor again behind the bleeder port 29 entering outer bags 23; And this dust bag is only after inner layer bag 21, outer bag 23 are all blocked, and the dust bag that just need more renew effectively raises service life of dust bag, practices thrift cost.
Here fixedly the flange 251 of inner layer bag 21 sacks should not be long to it is pointed out that bayonet socket plate 25, and its length should be smaller or equal to the length of inner layer bag 21 bags.Because dust is progressively to be piled up by the direction of position to the air inlet 27 that is positioned at dust bag bayonet socket plate 25 opposite faces, if flange 251 length that bleeder port is set are during greater than inner layer bag 21 bag length, bleeder port is prone to stopped up by dust, reduces the service efficiency of dust bag.
According to the Bernoulli equation of airflow mechanics, in order further to reduce suction losses, the present invention designs the area of the area of bleeder port 29 more than or equal to air inlet 27, can make that the suction losses of dust catcher is less.Adopt the test of row internal standard, even adopt the dust bag of domestic common material, the suction losses of dust catcher is smaller or equal to 5%.Same principle is in order better to reduce suction losses, the area of gap 20 cross-sectional areas >=air inlet 27.
Embodiment four
Fig. 5 is the dust bag longitudinal sectional view of a plurality of bleeder ports of the embodiment of the invention four bayonet socket strips.As shown in Figure 5, the invention discloses the dust bag of the ectonexine structure of another kind of porous, described inner layer bag 21 is enclosed to form inner bag space 100 with bayonet socket plate 25, and said inner layer bag 21 is provided with outer bag 23 at interval, leaves gap 20 between the two; Described outer bag 23, inner layer bag 21 and bayonet socket plate 25 are enclosed to form outer bag space 200; Gas channel is the bleeder port 29 that is opened on the bayonet socket plate 25; Bleeder port 29 evenly is opened on the flange 251 of bayonet socket plate 25; And porous is evenly distributed on and is positioned on the flange, and total area of porous is more than or equal to the area of air inlet 27.
Identical with embodiment three is that when dust got into outer bags through bleeder port 29, because the gravity effect, a part of dust that is positioned at outer bag 23 upper surfaces still can be fallen into inner layer bag 21, thereby reduces the dust that gets into outer bag 23, avoids outer bag 23 blocked.When bleeder port 29 was opened in the length range of the flange 251 that is not more than bag length, because effect of inertia, the dust in the air-flow seldom escaped into outer bag 23 at the bleeder port 29 of front end.In order to reduce suction losses, the gross area of a plurality of bleeder ports 29 is more than or equal to the area of air inlet 27, and gap 20 cross-sectional areas between the inside and outside bag are more than or equal to the area of air inlet 27.Through the setting of above bleeder port 29, gap 20 cross-sectional areas size, adopt the test of row internal standard, even adopt domestic common dust bag, the suction losses of dust catcher is smaller or equal to 5%.
Dust bag of the present invention can adopt various filtering materials.In order to improve filter effect, the bag filtering material of described inner layer bag and outer bag can be the combination of one or more materials in fibrous material, woven, nonwoven, the plastics.
In sum, vacuum cleaner bags provided by the present invention, simple in structure, easy to use, no suction losses or few suction losses needn't frequent change, effectively raise the service life of dust bag, practice thrift cost.
Claims (10)
1. vacuum cleaner bags; Comprise inner layer bag (21) and outer bag (23), both sacks sealing and fixing respectively offer air inlet (27) on the bayonet socket plate (25) on bayonet socket plate (25); Described inner layer bag (21) and bayonet socket plate (25) are enclosed to form inner bag space (100); It is characterized in that described inner layer bag (21) and outer bag (23) are provided with at interval, leave gap (20) between the two; Described outer bag (23), inner layer bag (21) and bayonet socket plate (25) are enclosed to form outer bag space (200), are provided with gas channel between described inner bag space (100) and the outer bag space (200).
2. vacuum cleaner bags as claimed in claim 1 is characterized in that, described gas channel is for being opened in the bleeder port (29) on the inner layer bag (21).
3. vacuum cleaner bags as claimed in claim 1 is characterized in that, said bayonet socket plate (25) has the fixedly flange (251) of inner layer bag (21) sack, and described gas channel is for being opened in the bleeder port (29) on the flange (251).
4. vacuum cleaner bags as claimed in claim 1 is characterized in that, the cross section of described gap (20) is provided with in the form of a ring, forms annular space.
5. vacuum cleaner bags as claimed in claim 1 is characterized in that, the area of the cross-sectional area >=air inlet (27) of described gap (20).
6. like claim 2 or 3 each described vacuum cleaner bags, it is characterized in that described bleeder port (29) is 1, is opened in the upside of air inlet (27);
Perhaps, described bleeder port (29) is a plurality of.
7. vacuum cleaner bags as claimed in claim 6 is characterized in that, described a plurality of bleeder ports (29) are evenly to be provided with.
8. vacuum cleaner bags as claimed in claim 6 is characterized in that, described bleeder port (29) is opened in the scope that is positioned at bayonet socket plate (25) inner surface to inner layer bag (21) bag length 1/2.
9. vacuum cleaner bags as claimed in claim 8 is characterized in that, the area of the area >=air inlet (27) of described bleeder port (29).
10. vacuum cleaner bags as claimed in claim 1 is characterized in that, the bag filtering material of described inner layer bag (21) and outer bag (23) is the combination of one or more materials in fibrous material, woven, nonwoven, the plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110026130.9A CN102599857B (en) | 2011-01-19 | 2011-01-19 | Dust bag for vacuum dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110026130.9A CN102599857B (en) | 2011-01-19 | 2011-01-19 | Dust bag for vacuum dust collector |
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| Publication Number | Publication Date |
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| CN102599857A true CN102599857A (en) | 2012-07-25 |
| CN102599857B CN102599857B (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110026130.9A Active CN102599857B (en) | 2011-01-19 | 2011-01-19 | Dust bag for vacuum dust collector |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103070636A (en) * | 2013-01-08 | 2013-05-01 | 上海曾曦净化科技有限公司 | Novel-structure low-pressure-loss vacuum cleaner filter bag |
| CN107049143A (en) * | 2017-06-29 | 2017-08-18 | 江苏美的清洁电器股份有限公司 | The dirt cup component and dust catcher of dust catcher |
| USD840615S1 (en) | 2016-10-14 | 2019-02-12 | Tti (Macao Commercial Offshore) Limited | Handheld vacuum cleaner |
| USD844265S1 (en) | 2016-10-14 | 2019-03-26 | Tti (Macao Commercial Offshore) Limited | Handheld vacuum cleaner |
| US10470625B2 (en) | 2016-04-15 | 2019-11-12 | Tti (Macao Commercial Offshore) Limited | Vacuum cleaner and filter for a vacuum cleaner |
| USD911642S1 (en) | 2017-12-05 | 2021-02-23 | Techtronic Floor Care Technology Limited | Housing for a filter |
| US11607637B2 (en) | 2018-08-31 | 2023-03-21 | Milwaukee Electric Tool Corporation | Power tool including an air filter and debris collector |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103070636A (en) * | 2013-01-08 | 2013-05-01 | 上海曾曦净化科技有限公司 | Novel-structure low-pressure-loss vacuum cleaner filter bag |
| US10470625B2 (en) | 2016-04-15 | 2019-11-12 | Tti (Macao Commercial Offshore) Limited | Vacuum cleaner and filter for a vacuum cleaner |
| US10531772B2 (en) | 2016-04-15 | 2020-01-14 | Tti (Macao Commercial Offshore) Limited | Handheld vacuum cleaner |
| US10743731B2 (en) | 2016-04-15 | 2020-08-18 | Tti (Macao Commercial Offshore) Limited | Vacuum filter |
| US11363922B2 (en) | 2016-04-15 | 2022-06-21 | Techtronic Floor Care Technology Limited | Vacuum cleaner and filter for a vacuum cleaner |
| USD840615S1 (en) | 2016-10-14 | 2019-02-12 | Tti (Macao Commercial Offshore) Limited | Handheld vacuum cleaner |
| USD844265S1 (en) | 2016-10-14 | 2019-03-26 | Tti (Macao Commercial Offshore) Limited | Handheld vacuum cleaner |
| CN107049143A (en) * | 2017-06-29 | 2017-08-18 | 江苏美的清洁电器股份有限公司 | The dirt cup component and dust catcher of dust catcher |
| USD911642S1 (en) | 2017-12-05 | 2021-02-23 | Techtronic Floor Care Technology Limited | Housing for a filter |
| US11607637B2 (en) | 2018-08-31 | 2023-03-21 | Milwaukee Electric Tool Corporation | Power tool including an air filter and debris collector |
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|---|---|
| CN102599857B (en) | 2014-07-30 |
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Address after: 215168 Wuzhong District, Jiangsu, Stone Lake Road West, No. 108 Patentee after: ECOVACS ROBOTICS Co.,Ltd. Address before: 215168 Wuzhong District, Jiangsu, Stone Lake Road West, No. 108 Patentee before: ECOVACS ROBOTICS Co.,Ltd. Address after: 215168 Wuzhong District, Jiangsu, Stone Lake Road West, No. 108 Patentee after: ECOVACS ROBOTICS Co.,Ltd. Address before: 215168 Wuzhong District, Jiangsu, Stone Lake Road West, No. 108 Patentee before: ECOVACS ROBOTICS (SUZHOU) Co.,Ltd. Address after: 215168 Wuzhong District, Jiangsu, Stone Lake Road West, No. 108 Patentee after: ECOVACS ROBOTICS (SUZHOU) Co.,Ltd. Address before: 215168 Wuzhong District, Jiangsu, Stone Lake Road West, No. 108 Patentee before: TEK ELECTRICAL (SUZHOU) Co.,Ltd. |