CN101721170A - Indicator for dust collector - Google Patents
Indicator for dust collector Download PDFInfo
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- CN101721170A CN101721170A CN200810152533A CN200810152533A CN101721170A CN 101721170 A CN101721170 A CN 101721170A CN 200810152533 A CN200810152533 A CN 200810152533A CN 200810152533 A CN200810152533 A CN 200810152533A CN 101721170 A CN101721170 A CN 101721170A
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- indicator
- dust catcher
- dust
- shell
- indication body
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Abstract
The invention discloses an indicator for a dust collector, which comprises a shell (30). The shell (30) is convexly provided with an observation window (34) used for observing the internal state of the indicator; the left side and the right side of the shell (30) are provided with an air inlet (35) and an air outlet (36) respectively; the air outlet (35) is communicated with the inside of the dust collector; the air inlet (36) is communicated with the outside of the dust collector; the inner surface of the right side of the shell (30) is provided with an indication body (33) which is attached to the air inlet (36) in a sealing way; a magnetic body (32) is embedded in the indication body (33); and the outer surface of the right side of the shell (30) is sleeved with a magnetisable metal barrel (31). The indicator for the dust collector can realize the indication of different vacuum degrees in the dust collector so that a user can timely know the change condition of the quantities of foreign matters, such as dust and the like, collected in a dust collecting bag through the observation window, and has a low cost and is favorable to production and popularization.
Description
Technical field
The present invention relates to the dust removal with machine technical field, particularly relate to a kind of indicator of dust catcher.
Background technology
As shown in Figure 1, general vacuum cleaner 10 bodies comprise motor-driven chamber 4 and control of dust space 2.Have the fan (not shown) of generation suction and the motor housing H of motor (not shown) and be installed in 4 li of above-mentioned motor-driven chambers.The rear of above-mentioned motor housing H has exhaust component 9, discharges the air that has separated with foreign matter to vacuum cleaner 10 body exterior.
The place ahead one side that is positioned at the control of dust space 2 in 4 the place aheads, above-mentioned motor-driven chamber forms suction inlet 1, by between control of dust space 2 and exhaust component 9, being provided with the motor and the fan that can produce suction, so form suction at suction hose 6 places that suction inlet 1 and suction inlet are connected, above-mentioned suction inlet 1 sucks the extraneous air that contains foreign matter by suction hose 6, and the inboard of above-mentioned suction inlet 1 is provided with dust bag 3.Open and close and have the indicator 7 that shows control of dust space 2 internal air pressures on the cover 5 on 2 tops, above-mentioned control of dust space.
In addition, above-mentioned indicator 7 is referred to as the dust indicating device usually.By indicator 7, the user can be readily seen that the quantitative changeization of the foreign matter of dust bag 3 internal gatherings, thereby understands the air pressure in control of dust space 2.That is, above-mentioned indicator 7 is arranged on the 2 upside covers 5 of control of dust space, and the user judges at an easy rate in the process of cleaning whether vacuum cleaner 10 pressure inside are normal.As shown in Figure 2, above-mentioned indicator 7 structures are: the upside of shell 7c protrudes and forms the display window 7b that can observe internal state; The downside of shell 7c has the air inflow aperture 7a that is communicated with control of dust space 2.The inside of above-mentioned shell 7c comprises: along with air enters the inner elastomer 7s that shrinks or have restoring force of shell 7c by air inflow aperture 7a; Support the side of above-mentioned elastomer 7s, have the indicating device 7d of normal indicator 7g and warning indicator 7r; Be assembled in the folding pipe 7f that the soft material of rear enclosed indicator 7 one sides of above-mentioned indicating device 7d is made.
The course of action of indicator 7 with said structure is as follows: normal indicator 7g is usually located at the downside of display window 7b in the above-mentioned indicator 7.But along with the use of vacuum cleaner, gather foreign matter on the dust bag 3, because the influence of above-mentioned foreign matter, the mobile of air hindered, and 2 internal pressures reduction in control of dust space reaches vacuum state.The air inflow aperture 7a of the air of indicator 7 inside by being communicated with above-mentioned control of dust space 2 moves to control of dust space 2, behind the motor-driven chamber 4 that produces suction, is discharged to outside the dust catcher 10 by exhaust component 9 again.At this moment, the elastomer 7s of shell 7c inside shrinks, and indicating device 7d moves to the direction of air inflow aperture 7a.The normal indicator 7g that is positioned at display window 7b downside moves to the direction of air inflow aperture 7a, and the warning indicator 7r that is positioned at normal indicator 7g rear portion is positioned at display window 7b downside.At this moment, (7g, 7r) the folding pipe 7f of rear side is stretched to be fixed on indicating device 7d.
According to above-mentioned course of action, the user recognizes the abnormality of dust bag 3 according to the state of the indicating device 7d of display window 7b appearance.
After replacing dust bag 3, recover the air inflow aperture 7a that normal air flows into described indicator 7, make the air of indicator 7 inside keep normal condition by the internal pressure that makes control of dust space 2.At this moment, recovery indicating device 7d and the folding pipe 7f by elastomer 7s returns to original state.Be that normal indicator 7g is positioned at display window 7b downside.
But, elasticity is wayward sometimes for elastomer 7s (as spring), action should take place and not move in appearance easily, the perhaps early moving malfunctioning situation of shrinking that waits, can't in time correctly indicating device 7d be moved to observation window, so this indicator can't correctly be indicated the different vacuums of dust catcher inside, the user can't recognize the quantitative change situation of foreign matters such as dust bag 3 collected dusts by observation window.
For this reason, also developed at present the indicator of another dust catcher, as shown in Figure 3, protrude at the upside of the shell 30 of indicator and to be provided with observation window 34 transparent, that be used for the sight indicator internal state, have gas outlet 35 and air inlet 36 respectively in the left and right sides of shell 30, described gas outlet 35 is communicated with control of dust space 2, and described air inlet 36 is connected with the dust catcher outside.The inside of described shell 30 comprises: the indication body 33 that is arranged on first magnetic 31 of shell 30 left sides, next-door neighbour gas outlet 35, the right side that is arranged on shell 30, next-door neighbour's air inlet 36, described indication body 33 is connected with second magnetic 32 towards the side embedding of first magnetic 31, described first magnetic 31 and second magnetic 32 all are the magnetic of hollow, realize that the indicator inner space is communicated with the control of dust space 2 of dust catcher.This adopts in the indicator of magnetic, utilize the repulsive force of (illustrated first magnetic 31 and second magnetic 32) between two magnetics, realize the balance of the domestic and foreign work pressure differential (air pressure difference) when working, thereby realize indication the different vacuums of dust catcher inside with dust catcher.Because the distance between illustrated first magnetic 31 and second magnetic, 32 these two magnets is distant, reach so and make this indicator sealing need bigger magnetic force, thereby needs adopt the permanent magnet of highest ranking, the permanent magnet of highest ranking costs an arm and a leg at present, has caused the cost of dust collector indicator significantly to rise.
In addition, at dust bag 3 accumulation foreign matters, flow into mobile obstruction of air of dust catcher inside so by suction inlet 1 and suction hose 6, and the air pressure that causes control of dust space 2 reduces when becoming vacuum state, under the effect of dust catcher atmosphere outside pressure, indication body 33 moves to the observation window place gradually, because the repulsion between first magnetic 31 and second magnetic, 32 these two magnetics is inversely proportional to distance, therefore along with after the moving of indication body 33, repulsive force between these two magnetics increases, hindered the further action of indication body 33, thereby make indication body 33 can't normally arrive the position of observation window 34, indication body can't be realized correctly the indication to the different vacuums of dust catcher inside, thereby the user can't be in time recognizes the quantitative change situation of the foreign matters such as dust that dust bag 3 is collected by observation window 34.
Therefore, press at present and develop a kind of dust collector indicator, can high reliability ground realize correctly indication to the different vacuums of dust catcher inside, make the user can in time recognize the quantitative change situation of foreign matters such as dust collected in the dust bag by observation window, and with low cost, can guarantee that the production of indicator is popularized.
Summary of the invention
In view of this, the indicator that the purpose of this invention is to provide a kind of dust catcher, can correctly indicate to high reliability the different vacuums of dust catcher inside, make the user can in time recognize the quantitative change situation of foreign matters such as dust collected in the dust bag by observation window, and with low cost, can guarantee that the production of indicator is popularized.
For this reason, the invention provides a kind of indicator of dust catcher, include shell 30, protrude on this shell 30 and be provided with the observation window 34 that is used for the sight indicator internal state, the left and right sides of described shell 30 has gas outlet 35 and air inlet 36 respectively, described gas outlet 35 is connected with dust catcher inside, described air inlet 36 is connected with the dust catcher outside, the right side inner surface of described shell 30 is provided with indication body 33, described indication body 33 seals the described air inlet 36 of fitting, described indication body 33 is embedded in and is connected with magnetic 32, and the right side outer surface of described shell 30 is with a magnetizable metal tube 31.
Preferably, the described indication body 33 cylindrical indication body that is the left end opening.
Preferably, the described magnetic 32 tubular cylinder shape magnetic that is hollow.
Preferably, the lateral length of described magnetizable metal tube 31 is greater than or equal to the lateral length of described indication body 33.
Preferably, when dust catcher is in not operating state, this indication body 33 is positioned at the right side of described shell body 30, and in running order and dust bag stops up when making the dust catcher internal vacuum reach preset value at dust catcher, and this indication body 33 past gas outlet 35 directions shell body 30 in move.
Preferably, other indicator part except described magnetizable metal tube 31 and magnetic 32 is a plastic part, adopts stickum to carry out bonding between described magnetizable metal tube 31 and magnetic 32 and other the indicator part.
Preferably, described stickum is a glue.
By above technical scheme provided by the invention as seen, the axial magnetic what it takes of the present invention by existing between magnetizable metal tube 31 and the magnetic 32, the balance of the domestic and foreign work pressure differential when realizing with dust catcher work, thereby realize making the user can in time recognize the quantitative change situation of foreign matters such as dust collected in the dust bag by observation window to the indication of the different vacuums of dust catcher inside.
In addition, the indicator of dust catcher provided by the invention only need utilize the axial magnetive attraction between the magnetizable metal structure of a columniform magnetic and a tubular, can realize the opening and closing of indicator, therefore simple in structure, wide adaptability, can significantly reduce the product fraction defective of dust collector indicator, and low production cost, the widespread production that helps indicator is popularized.
Description of drawings
Fig. 1 is the stereogram of existing general vacuum cleaner;
Fig. 2 is the section of structure of the indicator of vacuum cleaner in the prior art;
Fig. 3 is for utilizing the generalized section of the vacuum cleaner device indicator of magnetic repulsive force in the prior art;
Fig. 4 is the generalized section of the indicator of a kind of dust catcher provided by the invention.
The specific embodiment
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 4, the invention provides a kind of indicator of dust catcher, include shell 30, the upside of this indicator shell 30 protrudes and is provided with observation window 34 transparent, that be used for the sight indicator internal state, have gas outlet 35 and air inlet 36 respectively in the left and right sides of shell 30, described gas outlet 35 is communicated with the control of dust space 2 of dust catcher inside, and described air inlet 36 is connected with the dust catcher outside.The inside of described shell 30 comprises: be arranged on the indication body 33 of shell 30 right side inner surfaces, the right side of described indication body 33 seals the described air inlet 36 of fitting, and described indication body 33 is the cylindrical indication body of left end opening.
Described indication body 33 is embedded in and is connected with magnetic 32, and the tubular cylinder shape magnetic that described magnetic 32 is a hollow is communicated with the control of dust space 2 of dust catcher inside to realize the indicator inner space.
In the present invention, the right side outer surface of described shell 30 is with a magnetizable metal tube 31, the lateral length of this magnetizable metal tube 31 is greater than or equal to the lateral length of described indication body 33, described magnetizable metal tube 31 be positioned at described indication body 33 corresponding positions on.In the present invention, magnetizable metal tube 31 is the tubular cylinder shape metal cylinder of hollow.
In the present invention, there is axial magnetic attracting force between described magnetizable metal tube 31 and the described magnetic 32.
In dust collector indicator provided by the invention, other indicator part except magnetizable metal tube 31 and magnetic 32 is a plastic part, adopt glue to carry out bonding between the indicator part of described magnetizable metal tube 31 and magnetic 32 and other plastics, for example, between described magnetizable metal tube 31 and the shell 30 and to utilize glue to carry out between described magnetic 32 and the indication body 33 bonding.Certainly, can also be that other stickums except that glue are bonding to carrying out between magnetizable metal tube and magnetic and other the plastic part.
When dust catcher is in not operating state, this indication body 33 is positioned at the right side of described shell body 30, in running order and dust bag stops up when making the dust catcher internal vacuum reach certain setting value (preset value) at dust catcher, and this indication body 33 past gas outlet 35 directions shell body 30 in move.
In the lump referring to Fig. 1, the against vacuum dust catcher, the suction that motor of dust collector produces is delivered to the dust catcher outside by suction hose 6 and suction inlet, the air that will contain foreign matters such as dust is drawn in the control of dust space 2, the air that enters the control of dust space is undertaken after foreign matter separates by dust bag 3, be then used in the motor of dust collector of cooling motor shell H inside, be discharged to the dust catcher outside by exhaust component 9 again.
Indicator for a kind of dust catcher provided by the invention, do not work or the air vacuum degree of dust catcher inside when low at dust catcher, in the dust collector indicator of the present invention, the air pressure difference of indication body 33 both sides is less, in view of having axial magnetic attracting force between described magnetizable metal tube 31 and the described magnetic 32, so indication body 33 is positioned at 31 center of magnetizable metal tube under the effect of axial magnetic, the right side wall of indication body 33 is fitted with air inlet 36 sealings that are positioned at shell 30 right sides, the stressed of its left and right sides reaches balanced, dust collector indicator of the present invention is closed, and air can't enter into the inside of dust catcher by the air inlet 36 of dust collector indicator of the present invention.
When the atomic thin dust of dust-collecting bag for dust collector 3 inner product or foreign matter have caused obstruction, to hinder by motor of dust collector from suction hose 6 inhaled airs motor of dust collector the flowing of flowing through from control of dust space 2 to the dust catcher outside, because the air in the control of dust space 2 continues under the suction of motor of dust collector via motor of dust collector, be discharged to the outside of dust catcher then through exhaust component 9, therefore, air total amount in the control of dust space 2 constantly reduces, the air pressure in control of dust space 2 reduces, in view of indicator of the present invention is communicated with dust suction space 2 by gas outlet 35, air capacity in the indicator also constantly reduces so, so the air vacuum degree of dust catcher inside constantly raises, the air pressure of dust catcher inside (comprising indicator inside) constantly descends.
Under the continuous situation about descending of the air pressure of dust catcher inside (comprising indicator inside), under the dust catcher atmosphere outside pressure effect that is subjected on indication body 33 right sides, in view of being embedded in, described indication body 33 connects magnetic 32, indication body 33 overcomes the axial magnetic what it takes effect that exists between described magnetizable metal tube 31 and the described magnetic 32, move to observation window 34 places (being the left side of shell 30) gradually, make this indication body 33 close observation window 34 gradually, can be arrived by the dust catcher user is observed.And opened air inlet 36, make the dust catcher air outside flow in this indicator, thereby enter into the control of dust space 2 of dust catcher inside through the slit between indication body 33 and indicator shell 30 inwalls.After air inlet 36 was opened, along with the moving process of indication body 33, the air vacuum degree of indicator inside constantly lowered, and the stressed of final indication body 33 left and right sides reaches balanced again.
Need to prove, in the indicator of dust catcher provided by the invention, the present invention is by adopting columniform indication body 33, can reduce the friction between indication body 33 and the shell 30, make indication body 48 externally under the action of air pressure, overcome the axial magnetic what it takes between described magnetizable metal tube 31 and the magnetic 32 that its embedding is connected, can in time move to observation window 34 directions delicately.
As mentioned above, the present invention only need utilize the axial magnetive attraction between the magnetizable metal structure of a columniform magnetic and a tubular, can realize the opening and closing of indicator, therefore simple in structure, wide adaptability, can significantly reduce the product fraction defective of dust collector indicator, and low production cost, the widespread production that helps indicator is popularized.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. the indicator of a dust catcher, it is characterized in that, include shell (30), this shell (30) is gone up to protrude and is provided with the observation window (34) that is used for the sight indicator internal state, the left and right sides of described shell (30) has gas outlet (35) and air inlet (36) respectively, described gas outlet (35) is connected with dust catcher inside, described air inlet (36) is connected with the dust catcher outside, the right side inner surface of described shell (30) is provided with indication body (33), described indication body (33) seals the described air inlet (36) of fitting, described indication body (33) is embedded in and is connected with magnetic (32), and the right side outer surface of described shell (30) is with a magnetizable metal tube (31).
2. the indicator of dust catcher as claimed in claim 1 is characterized in that, described indication body (33) is the cylindrical indication body of left end opening.
3. the indicator of dust catcher as claimed in claim 1 is characterized in that, described magnetic (32) is the tubular cylinder shape magnetic of hollow.
4. the indicator of dust catcher as claimed in claim 1 is characterized in that, the lateral length of described magnetizable metal tube (31) is greater than or equal to the lateral length of described indication body (33).
5. the indicator of dust catcher as claimed in claim 1, it is characterized in that, when dust catcher is in not operating state, this indication body (33) is positioned at the right side of described shell body (30), in running order and dust bag stops up when making the dust catcher internal vacuum reach preset value at dust catcher, and this indication body (33) past gas outlet (35) direction shell body (30) in moves.
6. the indicator of dust catcher as claimed in claim 1, it is characterized in that, other indicator part except described magnetizable metal tube (31) and magnetic (32) is a plastic part, adopts stickum to carry out bonding between described magnetizable metal tube (31) and magnetic (32) and other the indicator part.
7. the indicator of dust catcher as claimed in claim 6 is characterized in that, described stickum is a glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810152533A CN101721170A (en) | 2008-10-29 | 2008-10-29 | Indicator for dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810152533A CN101721170A (en) | 2008-10-29 | 2008-10-29 | Indicator for dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101721170A true CN101721170A (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810152533A Pending CN101721170A (en) | 2008-10-29 | 2008-10-29 | Indicator for dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101721170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106901652A (en) * | 2017-02-17 | 2017-06-30 | 江苏美的清洁电器股份有限公司 | Indicator and dust catcher |
-
2008
- 2008-10-29 CN CN200810152533A patent/CN101721170A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106901652A (en) * | 2017-02-17 | 2017-06-30 | 江苏美的清洁电器股份有限公司 | Indicator and dust catcher |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100609 |