CN100374062C - Safety device for vacuum dust cleaner - Google Patents
Safety device for vacuum dust cleaner Download PDFInfo
- Publication number
- CN100374062C CN100374062C CNB031305024A CN03130502A CN100374062C CN 100374062 C CN100374062 C CN 100374062C CN B031305024 A CNB031305024 A CN B031305024A CN 03130502 A CN03130502 A CN 03130502A CN 100374062 C CN100374062 C CN 100374062C
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- CN
- China
- Prior art keywords
- dust
- display
- cover cap
- air throttle
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present invention relates to a safety device of a vacuum suction cleaner, which comprises a cover cap, a display window and a casing, wherein the cover cap is simultaneously provided with a dust display for displaying dust amount, and a throttle valve which is communicated with external gas; the throttle valve can make external air fed to a dust collection chamber through a fan motor; the display window is used for recognizing dust; the casing is protruded and extended to the inside of a dust collection cover; the cover cap and the casing are mutually connected by screw nails; a sealing ring is inserted between the cover cap and the casing for strengthening the combination.
Description
Technical field
The present invention relates to a kind of safety device (A safety device for VacuumCleaner) of vacuum cleaner, relate in particular to the safety device that comprises as the vacuum cleaner of lower device: confirm amount of dust in the dust-collecting filter (filter) the control of dust display, prevent the overladen air throttle of motor (Damper).
Background technology
In general, dust catcher is to produce suction by the motor that is contained in the fuselage, the cleaning household electrical appliances that utilize this suction by suction nozzle ground dust to be sucked.As shown in Figure 1, general vacuum cleaner comprises vacuum cleaner body 10, suction pipe (hose) 20, handle 30, extension pipe 40, suction nozzle 50.Above-mentioned vacuum cleaner body 10 inside have the fan electromotor (not shown), can produce suction; Above-mentioned suction pipe 20 is connected the front side of vacuum cleaner body 10; The suction pipe 20 terminal handles 30 that form; One end of handle 30 connects extension pipe 40; Suction nozzle 50 is connected an end of extension pipe 40 removably, and kiss the earth also sucks air outside and thing such as dust.
The front interior of vacuum cleaner body 10 forms the dust storage chamber 15 of collecting external dust, and described dust storage chamber 15 is connected with suction pipe 20.Dust storage chambers 15 in the vacuum cleaner body 10 are provided with the display for dust 12 that can confirm the amount of dust of collecting.And can check the state of display for dust 12 by being arranged on body cover 11 on the vacuum cleaner body 10.
Describe display for dust 12 in detail with reference to Fig. 1 and Fig. 2.As shown in the figure, display for dust 12 inserts and is combined in shell (housing) inside that body cover 11 downsides form.
Display for dust 12 comprises following structure: the tube connector 12a that is connected with dust storage chamber 15; One end is connected on the tube connector 12a, the guiding tube 12b that the other end is sealed; Be arranged on red position 12c and green parts 12d in the above-mentioned guiding tube 12b, under action of pressure, move; Spring 12e between red, green parts and tube connector 12a, described spring 12e be to red, green parts 12c, and 12d provides the elastic force of the direction opposite with external pressure.
When dust catcher sucked dust normally, green parts 12d appeared on the display window 13.At this moment, though the pressure of dust storage chamber 15 sides that are connected with tube connector 12a less than the pressure that acts on the guiding tube 12b, owing to the elastic force of spring 12e, and makes green parts 12d appear on the display window 13.
After dust catcher work a period of time, dust storage chamber 15 can the accumulation dust.At this moment, reduce by suction pipe 20 amount of air drawn, the air in the dust storage chamber 15 then continues to discharge.After after a while, the pressure in the dust storage chamber 15 become high vacuum state like this, and red, green parts 12c, 12d overcome the elastic force of spring 12e and mobile to tube connector 12a place.So red position 12c just appears on the display window 13.The user sees from display window 13, just knows in the dust storage chamber 15 behind the red position 12c to be full of dust, and the dust in the cleaning dust storage chamber 15.
Generally, air throttle 14 will directly be provided to extraneous air on the fan electromotor.So air throttle 14 inserts in the patchhole 14a that connects with the outside on the vacuum cleaner.But to form the hole at the outer surface of vacuum cleaner, air throttle 14 is installed again, have the outward appearance of having destroyed dust catcher, influence problem attractive in appearance.
Summary of the invention
In order to solve the problems of the technologies described above, the purpose of this invention is to provide the air throttle of the dust catcher with following effect: the fuselage at dust catcher does not form the hole in addition, with the hole of the display window of discerning display for dust as air throttle.
To achieve these goals, the invention provides a kind of safety device of dust catcher, comprise cover cap, display window, shell, the display window identification display for dust of dust collection cover one side, be provided with display for dust and air throttle on the cover cap of this display window downside simultaneously, air throttle comprises tube connector, guiding tube, moving-member and spring, tube connector connects dust storage chamber, one end of guiding tube is connected on the tube connector, the other end is sealed, moving-member moves in guiding tube, spring is between moving-member and tube connector, and air throttle is communicated with extraneous gas via display window, by fan electromotor extraneous air is supplied to dust storage chamber, air throttle comprises bonded block, open and close mouth and spring, bonded block opens and closes mouth and moves up and down at the air throttle upside, and spring supports remains silent, the safety device of dust catcher changes according to the pressure of dust storage chamber, carries out display for dust and air throttle function simultaneously.
Among the present invention, owing to utilized with the hole of the display window of discerning display for dust as air throttle, saved other formation of vacuum cleaner body and adhered to the hole of air throttle, thereby made the good looking appearance of dust catcher, the manufacturing of its mould is also corresponding simple.
Description of drawings
Fig. 1 is the schematic perspective view of general vacuum cleaner;
Fig. 2 is the cutaway view of general vacuum cleaner display for dust;
Fig. 3 is the schematic perspective view of vacuum cleaner of the present invention;
Fig. 4 a is a vacuum cleaner safety device decomposition side view of the present invention;
Fig. 4 b is the side view after Fig. 4 a vacuum cleaner safety device assembling of the present invention;
Fig. 5 a is the schematic perspective view during according to vacuum cleaner air throttle blocking of the present invention;
Fig. 5 b is the schematic perspective view during according to vacuum cleaner air throttle open state of the present invention.
The critical piece description of reference numerals
100 vacuum cleaner bodies, 110 dust collection covers (cover)
111 ostiums, 130 display windows
200 cover caps (cover), 210 display for dust
211 tube connectors, 215 action components
250 sealing rings (seal), 300 shells (housing)
310 ribs (rib)
The specific embodiment
Below, reference is as Fig. 3, and Fig. 4 a and Fig. 4 b describe the preferred embodiment according to the safety device of vacuum cleaner of the present invention in detail.
Safety device and cover cap 200 that Fig. 3 demonstrates vacuum cleaner of the present invention and is made of display for dust 210 and air throttle 230 attached to dust collection cover 110.
According to vacuum cleaner of the present invention, form dust storage chamber in the front side of dust catcher 100.The control of dust power of utilizing dust storage chamber to produce sucks outside dust or foreign matter.Dust storage chamber is coated with dust collection cover 110, and the preceding upper lateral part of dust collection cover 110 forms the ostium 111 that flows into for outside foreign matter.One side of dust collection cover 110 forms the display window 130 of confirming amount of dust.
The inside of dust collection cover 110, the downside of display window 130 are provided with the display for dust 210 of confirming amount of dust and air outside are introduced the air throttle 230 of dust catcher inside during with the dust catcher abnormal work.
The structure of display for dust 210 is same as the prior art, is simply described as follows:
Dust shows that 210 comprise following structure: the tube connector 211 that is connected with dust storage chamber; One end is connected on the tube connector 211, the guiding tube 213 that the other end is sealed; Be arranged in the above-mentioned guiding tube 213 under the pressure differential effect and the moving-member 215 that moves; Spring 217 between moving-member 215 and tube connector 211, described spring 217 provide the elastic force of the direction opposite with external pressure to moving-member 215.
When dust catcher normally sucked dust, " normal condition " of moving-member 215 appeared on the display window 130.After dust catcher work a period of time, dust storage chamber can accumulate dust.At this moment, the pressure in the dust storage chamber is lowered into high vacuum state, and moving-member 215 moves, and " abnormal condition " of moving-member 215 appeared on the display window 130.When the user sees that from display window 130 moving-member 215 is shown as abnormal condition, just know to be full of dust in the dust storage chamber, clear up the dust in the dust storage chamber then.
Blocked the time, extraneous air is sent into dust storage chamber by air throttle 230 when being full of pollutant in suction pipe or the dust storage chamber with fan electromotor.Extraneous air can not continue to supply with, and fan electromotor continues to rotate, and can damage motor or even meeting breaking out of fire because its temperature rises.In order to prevent security incident, air throttle 230 has played very important effect.
Describe the structure of air throttle in detail below with reference to Fig. 5 a and Fig. 5 b.
The building block of air throttle 230 comprises: at the bonded block 231 of air throttle 230 upsides formation; The switching mouth 235 that moves up and down by various pressure effects; Support 235 the spring 233 of remaining silent to the rightabout of pressure direction.
The middle body of bonded block 231 forms faying face 231a, and faying face 231a directly is connected on the hole that forms on the vacuum cleaner fuselage 100.The central authorities of bonded block 231 form upside ostium 231b.Air outside flows into dust storage chamber 100 inside by upside ostium 231b.
Open and close mouthfuls 235 in the bottom surface of bonded block 231, locking upside ostium 231b always under the resilient force of spring 233.Because open and close mouthful 235 locking upside ostium 231b, so do not overcome the external force effect of the elastic force of spring 233, air outside just can not enter dust storage chamber 100 inside by upside ostium 231b.
The outer peripheral face that opens and closes mouth 235 and spring 233 forms back shaft 237 in radioactive mode.Back shaft 237 prevents that switching mouth 235 from outwards coming off with spring 233, generally, more than 2 whole sealings around opening and closing mouth 235 and spring 233 also is fine according to method for designing formation.
The spring 233 of air throttle 230 has the elastic force stronger than the spring 217 of display for dust 210 inside.The effect of the spring 217 of display for dust 210 inside is that the situation that free from dust is arranged in the dust storage chamber is shown to the user, so its elastic force is less also passable.Air throttle 230 only stops up suction pipe or dust storage chamber at foreign matter, just works when can not provide air by fan electromotor, so will have the elastic force stronger than the spring 217 of display for dust 210 inside.
If the elastic force of the spring 233 of air throttle 230 is littler than the elastic force of the spring 217 of display for dust 210 inside, when even the foreign matter chocking-up degree is light, air throttle 230 is also open, makes the suction of vacuum cleaner reduce, thereby can not clean effectively.
On the cover cap 200 of air throttle 230 of the present invention attached to display for dust 210.Cover cap 200 supports display for dust 210 and makes on its dust collection cover 110 attached to vacuum cleaner body.Following with reference to Fig. 3, Fig. 4 a and Fig. 4 b describe the cover cap 200 of display for dust 210 and the structure of adhering to the dust collection cover 110 of cover cap 200 in detail.
Shown in Fig. 3 and Fig. 4 a, display for dust 210 and air throttle 230 can be set simultaneously on cover cap 200.For display for dust 210 stably is set, in the outer peripheral face formation ribs 203 of cover cap 200 inner corresponding display for dust 210.Ribs 203 1 sides form first combined hole 271 in conjunction with the tube connector 211 of display for dust 210, and opposite side forms second combined hole 272 that adheres to air throttle 230.
The internal structure of dust collection cover 110 is shown in Fig. 4 a.As shown in the figure, the inside of dust collection cover 110 forms the structure of corresponding cover cap 200.The attachment surface 201 of corresponding cover cap 200, the inboard of dust collection cover 110 is outstanding to be formed and the identical shell 300 of attachment surface 201 sizes.
The inner surface of dust collection cover 110 is inner the same with cover cap 200, and formation can be stablized the ribs 310 of adhering to display for dust 210.Corresponding display 210 outer surfaces, above-mentioned ribs 310 forms semi-circular periphery.In order to discern display for dust 210 from the outside, moving-member 215 upsides of display for dust 210 are provided with display window 130.And the two side ends of shell 300 forms connecting bushing (boss) B with connecting hole B1.The screw that connects the connecting hole R1 of cover cap 200 is connected on the connecting bushing B.
Be attached with sealing ring (seal) 250 between cover cap 200 and the shell 300, prevent to flow in the dust storage chamber by the slit that the extraneous air that enters behind the display window sees through between cover cap 200 and the shell 300.Sealing ring 250 is positioned at the attachment surface 201 of cover cap 200 and the jag of shell 300, tighten behind the screw between the cover cap 200 and shell 300 contact tightr.Sealing ring 250 normal use sponges in the past, but used elastomeric material in order to improve sealing in the present invention.
After display for dust 210 and air throttle 230 are adhered in cover cap 200 inside, place sealing ring 250 on the attachment surface 201, be connected with screw with shell 300.Cover cap 200 and shell 300 interconnected situations as can be seen from Fig. 4 b.As shown in the figure, the tube connector 211 of display for dust 210 is a dust storage chamber direction opening towards the outside of cover cap 200.The back side of air throttle 230 is provided with towards dust storage chamber, and can open by draught head.
Shell 300 communicates with extraneous gas by display window 130 with space between the cover cap 200, and the outside of cover cap 200 contacts with dust storage chamber.Be the pressure that shell 300 and cover cap 200 are subjected to extraneous gas, the outside of cover cap 200 is subjected to the pressure of dust storage chamber.
The course of work as the display for dust of the safety device of vacuum cleaner and air throttle with said structure is as follows.
Behind a large amount of dusts of dust storage chamber inner accumulated, the pressure in the dust storage chamber is lower than display for dust 210 internal pressures.At this moment, the spring 217 in the display for dust 210 shrinks under the pressure differential effect.The user after knowing that by the display window 130 of display for dust 210 dust is full discharges dust in the dust storage chamber or foreign matter.
When the part on dust storage chamber or the suction pipe was stopped up by the bigger foreign matter of volume, different with the situation of dirt accumulation in the dust storage chamber, this moment, fan electromotor can not suck into extraneous air.Air in the dust catcher continues to discharge, and does not have the air of supply, so the pressure in the dust storage chamber reduces rapidly.Be cover cap 200 with shell 300 between the air pressure and the external gas pressure in space identical, but the air pressure of dust storage chamber inside is very low.
At this moment, the spring 233 of air throttle 230 can not overcome draught head and open.Air throttle 230 is by after open, and the vacuum cleaner body air outside is via display window 130, and the upside ostium 231b by air throttle 230 supplies to dust storage chamber inside.
As mentioned above, according to the present invention,, but replace with display window 130 with the side connection air throttle 230 of the cover cap 200 that encases display for dust 210, the feasible hole that needn't form air throttle 230 in addition.
Though the front is described the present invention in detail, persons of ordinary skill in the art may appreciate that under the prerequisite of the spirit and scope of the invention of in not breaking away from right request scope, determining, can make change miscellaneous and modification.
Claims (5)
1. the safety device of a vacuum cleaner, comprise cover cap, display window, shell, the cap side walls opening surface forms the attachment surface of the section of having difference, the attachment surface of corresponding cover cap, the inboard of dust collection cover is outstanding to be formed and the identical shell of attachment surface size, shell is to inner outstanding prolongation of dust collection cover, the display window of dust collection cover one side is used for discerning display for dust, it is characterized in that: be provided with display for dust (210) and air throttle (230) on the cover cap (200) of described display window (130) downside simultaneously, display for dust (210) shows amount of dust, comprise tube connector (211), guiding tube (213), moving-member (215) and spring (217), tube connector (211) is connected with dust storage chamber, one end of guiding tube (213) is connected on the tube connector (211), the other end is sealed, moving-member (215) is arranged in the guiding tube (213) and under the pressure differential effect and move, spring (217) is between moving-member (215) and tube connector (211), spring (217) provides the elastic force of the direction opposite with external pressure to moving-member (215), air throttle (230) is connected with extraneous gas via display window (130), can supply to dust storage chamber to extraneous air by fan electromotor, air throttle (230) comprises bonded block (231), open and close mouthful (235) and a spring (233), bonded block (231) forms at air throttle (230) upside, opening and closing mouthful (235) is moved up and down by various pressure effects, spring (233) supports remain silent (235) to the rightabout of pressure direction, the safety device of dust catcher changes according to the pressure of dust storage chamber, carries out display for dust function and air throttle function simultaneously.
2. the safety device of vacuum cleaner according to claim 1, it is characterized in that: the two side ends of described shell (300) forms the connecting bushing (B) with connecting hole (B1), the screw that connects the connecting hole (R1) of cover cap (200) is connected on the connecting bushing (B), and cover cap (200) and shell (300) are interconnected with screw.
3. the safety device of vacuum cleaner according to claim 1, it is characterized in that: described cover cap (200) is gone up and is formed first combined hole (271) and second combined hole (272), first combined hole (271) is used to insert the tube connector (211) of display for dust (210), and second combined hole (272) is used for inserting in conjunction with air throttle (230).
4. the safety device of vacuum cleaner according to claim 1, it is characterized in that: described cover cap (200) inserts sealing ring (250) with shell (300), sealing ring (250) is positioned at the attachment surface (201) of cover cap (200) and the jag of shell (300), strengthen its combination, sealing ring (250) has used elastomeric material.
5. the safety device of vacuum cleaner according to claim 1, it is characterized in that: described shell (300) several ribs of inner formation (301) support and display for dust (210) fixing and that cover cap (200) is bonded together, in the outer peripheral face formation ribs (203) of the inner corresponding display for dust of cover cap (200) (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031305024A CN100374062C (en) | 2003-07-29 | 2003-07-29 | Safety device for vacuum dust cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031305024A CN100374062C (en) | 2003-07-29 | 2003-07-29 | Safety device for vacuum dust cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1575730A CN1575730A (en) | 2005-02-09 |
| CN100374062C true CN100374062C (en) | 2008-03-12 |
Family
ID=34578909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031305024A Expired - Fee Related CN100374062C (en) | 2003-07-29 | 2003-07-29 | Safety device for vacuum dust cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100374062C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100876694B1 (en) * | 2006-09-06 | 2008-12-31 | 엘지전자 주식회사 | How to control the vacuum cleaner |
| CN101427897B (en) * | 2007-11-07 | 2012-01-11 | 乐金电子(天津)电器有限公司 | Automatic unlocking exterior dust full-load display apparatus of dust aspirator |
| CN101683252A (en) * | 2008-09-22 | 2010-03-31 | 乐金电子(天津)电器有限公司 | Dust cleaner |
| CN102450981B (en) * | 2010-10-27 | 2016-08-10 | 南京乐金熊猫电器有限公司 | Display for dust |
| CN102793511A (en) * | 2011-05-26 | 2012-11-28 | 乐金电子(天津)电器有限公司 | Brush head of dust collector |
| DE102017108194A1 (en) * | 2017-04-18 | 2018-10-18 | Vorwerk & Co. Interholding Gmbh | Method for operating a self-propelled vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124916A (en) * | 1977-08-04 | 1978-11-14 | The Singer Company | Vacuum cleaner condition indicator and safety device |
| JPH0433629A (en) * | 1990-05-29 | 1992-02-05 | Matsushita Electric Ind Co Ltd | Vacuum cleaner |
| JPH04197227A (en) * | 1990-11-28 | 1992-07-16 | Matsushita Electric Ind Co Ltd | Dust collection quantity display device for vacuum cleaner |
| JPH09262198A (en) * | 1996-03-29 | 1997-10-07 | Hitachi Ltd | Vacuum cleaner |
-
2003
- 2003-07-29 CN CNB031305024A patent/CN100374062C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124916A (en) * | 1977-08-04 | 1978-11-14 | The Singer Company | Vacuum cleaner condition indicator and safety device |
| JPH0433629A (en) * | 1990-05-29 | 1992-02-05 | Matsushita Electric Ind Co Ltd | Vacuum cleaner |
| JPH04197227A (en) * | 1990-11-28 | 1992-07-16 | Matsushita Electric Ind Co Ltd | Dust collection quantity display device for vacuum cleaner |
| JPH09262198A (en) * | 1996-03-29 | 1997-10-07 | Hitachi Ltd | Vacuum cleaner |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1575730A (en) | 2005-02-09 |
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