CN1329000C - Dust collector of vacuum cleaner - Google Patents

Abstract

The present invention relates to a dust collection device of a vacuum suction cleaner, which comprises a dust suction chamber, a classifier, a return pipe and an aggregation part, wherein the dust suction chamber is connected with a dust suction part through a dust suction pipe, and is capable of separating large particles; the classifier is provided with a classifier suction port arranged on the discharging port of the dust suction chamber, a small dust discharging port which can discharge and separate small dust, and a large particle discharging port which can discharge and separate large particles; one end of the return pipe is connected with the small dust discharging port; the aggregation part can make air sucked by the dust suction pipe aggregated in the classifier for separating small dust, and make the other end of the return pipe connected to the dust suction pipe. Because the dust collection device of the present invention makes separated small dust recirculated and aggregated, the present invention is provided with a high-performance dust filter for aggregating small dust. Thus, the present invention not only can prevent pressure loss, but also can improve the dust suction efficiency of the suction cleaner. Besides, the present invention does not need extra power for separating the small dust by using an expansion pipe. The aggregation part does not need extra energy for aggregating the small dust.

Description

The dust collect plant of vacuum cleaner

Technical field

The present invention relates to a kind of dust catcher, particularly relate to a kind of dust collect plant of vacuum cleaner.

Background technology

In general, dust catcher is that a kind of utilization is arranged on the suction that the motor of dust catcher inside produces, and is drawn into the dust storage chamber from the dust collecting port that links to each other with flexible hose dust and the foreign matter with the outside, thereby finishes the device of cleaning works automatically.Fig. 1 is the vacuum cleaner composition frame chart of prior art.As shown in Figure 1, this vacuum cleaner is by the dust collecting port 10 that can suck dust; Gather from the dust collect plant 20 of the dust of dust collecting port 10 suctions; The sweep-up pipe 30 that connects dust collecting port 10 and dust collect plant 20; Form with the motor 40 that can produce suction.Dust collect plant 20 then is made up of the dust storage chamber 21 that can remove the particle that volume is bigger in sweep-up pipe 30 dust that sucks and foreign matter and the dirt catcher 22 that can remove fine dust.When dust catcher is connected power supply, motor 40 in it rotates, at this moment dust catcher will produce suction, thereby make air outside enter into the inside of dust catcher by dust collecting port 10, outside dust and foreign matter also can be drawn into dust collecting port 10 with air, and enter into dust collect plant 20 along sweep-up pipe 30.Enter into dust and foreign matter big and heavy foreign matter of meeting sedimentation lower volume the time of dust collect plant 20, then can dispose tiny dust during through dirt catcher 22 through dust storage chamber 21.Air by dirt catcher 22 is discharged to body exterior through motor 40 at last.But, in order to remove tiny dust, this dust catcher should use high efficiency dirt catcher, and use this dirt catcher will cause the bigger pressure loss, therefore, jumbo motor will be used in order to keep certain suction, the lower problem of inhalation rate of definition recently will be occurred like this by power consumption and suction; In addition, used electric dust collecting means in order to gather tiny dust, this device not only is not suitable for Small-sized suction cleaner, and needs bigger energy, and also more complicated of structure.

Summary of the invention

In order to address the above problem, the object of the present invention is to provide a kind of isolated fine dust can the circulation again and gather, therefore the high-performance dirt catcher that can gather fine dust can be adopted in case the pressure loss, thereby the dust collect plant of the vacuum cleaner of dust catcher pick-up performance can be improved.

In order to achieve the above object, the dust collect plant of vacuum cleaner provided by the invention comprise be provided with the clasfficiator suction inlet that links to each other with dust collecting port by sweep-up pipe, by the terminal extension tube that forms of rapid expansion clasfficiator suction inlet, form along the sidewall of extension tube, be used to the clasfficiator of discharging the fine dust outlet of isolated fine dust and being used to discharge the bulky grain thing outlet of isolated bulky grain thing; The return pipe that one end links to each other with the fine dust outlet; For making the air in isolated fine dust of classified device and the sweep-up pipe produce collision and gather the portion that gathers that forms by the return pipe other end and sweep-up pipe intersection; With the dust storage chamber that is connected bulky grain thing outlet place in order to isolate the bulky grain thing.

The dust collect plant of vacuum cleaner provided by the invention is with isolated fine dust recirculation and gathers, therefore be equipped with high performance dirt catcher in order to gather fine dust, the pressure loss can not only be prevented like this, but also the dust collection efficiency of dust catcher can be improved.And, need not use extra power when using extension tube to separate fine dust, and the portion of gathering needn't use also extra energy to gather fine dust.

Description of drawings

Be elaborated below in conjunction with the dust collect plant of the drawings and specific embodiments to vacuum cleaner of the present invention.

Fig. 1 is the vacuum cleaner composition frame chart of prior art.

Fig. 2 is a vacuum cleaner composition frame chart of the present invention.

Fig. 3 forms schematic diagram for dust collect plant the 1st embodiment of the present invention.

Fig. 4 forms schematic diagram for dust collect plant the 2nd embodiment of the present invention.

The specific embodiment

In the present invention, the parts identical with prior art use identical symbol, and omit its explanation.Fig. 2 is a vacuum cleaner composition frame chart of the present invention.Fig. 3 forms schematic diagram for dust collect plant the 1st embodiment of the present invention.As shown in Figure 2, vacuum cleaner of the present invention is by the dust collecting port 10 that can suck dust; Gather from the dust collect plant 100 of the dust of dust collecting port 10 suctions; The sweep-up pipe 30 that connects dust collecting port 10 and dust collect plant 100; Form with the motor 40 that can produce suction.As shown in Figure 3, dust collect plant 100 comprises the dust storage chamber 120 that links to each other with dust collecting port 10 by sweep-up pipe 30 in order to isolate the bulky grain thing; Be connected the clasfficiator 130 at dust storage chamber outlet 121 places; Be connected return pipe 141 on the clasfficiator 130 for making isolated fine dust in the clasfficiator 130 come back to the end that circulates in the dust storage chamber 120; With the portion that gathers 150 that forms and can gather fine dust by the intersection of returning pipe 141 and sweep-up pipe 30.Clasfficiator 130 then comprises the clasfficiator suction inlet 138 that is formed by 121 prolongations of dust storage chamber outlet; The extension tube 137 of sharply expanding clasfficiator suction inlet 138 ends and forming; Fine dust outlet 131 along the formation of extension tube 137 sidewalls; With the bulky grain thing outlet 132 that can discharge isolated bulky grain thing.Extension tube 137 is formed to the fine dust outlet 131 that forms by the damping hole 136 that is formed on clasfficiator suction inlet 138 ends with along damping hole 136 end sides.Therefore sharply spread by clasfficiator suction inlet 138 from damping hole 136 terminal air of discharging.The same straight line that is centered close to of bulky grain thing outlet 132 and damping hole 136.And, be easy to discharge air for making bulky grain thing outlet 132, also between extension tube 137 and bulky grain thing outlet 132, be provided with guide 133.Clasfficiator 130 has utilized Coanda effect.Coanda effect is meant that the fluid that flows in it can flow along tube wall when caliber becomes big suddenly, and the particle in the fluid also can flow with fluid.Because the straight-line inertia force of fine dust wants beguine little along fine dust outlet 131 sidewall airflow flowing resistances according to Coanda effect in the dust that extension tube 137 is discharged, so it can be discharged by fine dust outlet 131.The bulky grain thing is then discharged from bulky grain thing outlet 132 than gas-flow resistance is big because of its inertia force.Gather portion 150 and be by the sweep-up pipe 30 and the intersection of returning pipe 141 and forms, it can make by returning fine dust that pipe 141 introduces and collide with the dust generation in the sweep-up pipe 30 and be agglomerated into bigger particle.In addition, gathering portion 150 can also use auxiliary means more effectively to gather fine dust.Methods such as for example use sound gathering, AC field gathering.When body of dust collector is connected power supply, motor 40 in it rotates, at this moment dust catcher will produce suction, thereby make air outside enter into dust catcher inside through dust collecting port 10, outside dust and foreign matter also can be drawn into dust collecting port 10 with air, and enter into dust collect plant 100 along sweep-up pipe 30.The dust and the foreign matter that enter into dust collect plant 100 can the big and heavy foreign matters of sedimentation lower volume through dust storage chamber 120 time.The fine dust that sucks is told the back and is discharged to gathering portion 150 by returning pipe 141 in clasfficiator 130.Dust in the sweep-up pipe 30 can produce collision in gathering portion 150 with by the fine dust of returning pipe 141 circulations, thereby makes fine dust be agglomerated into bulky grain.The big dust of change can reenter in the dust storage chamber 120 again and gather in gathering portion 150.

Fig. 4 forms schematic diagram for dust collect plant the 2nd embodiment of the present invention.As shown in Figure 4, dust collect plant 100 comprises the clasfficiator 230 of the bulky grain thing outlet 232 that is provided with the clasfficiator suction inlet 238 that links to each other with dust collecting port 10 by sweep-up pipe 30, the fine dust outlet 231 that can discharge isolated fine dust and can discharges the bulky grain thing; The return pipe 241 that one end links to each other with fine dust outlet 231; For making in clasfficiator 230 isolated fine dust and being drawn into air dust collecting port 10 in and producing collision and be agglomerated into bulky grain by returning the portion that gathers 250 that pipe 241 and sweep-up pipe 30 intersections form; With the dust storage chamber 220 that is connected bulky grain thing outlet 232 places in order to isolate the bulky grain thing.The 2nd embodiment and the 1st embodiment have just changed the order that is provided with of dust storage chamber and clasfficiator, and other formation is identical.When body of dust collector is connected power supply, motor 40 in it rotates, at this moment dust catcher will produce suction, thereby make air outside enter into the inside of dust catcher through dust collecting port 10, outside dust and foreign matter also can be drawn into dust collecting port 10 with air, and are incorporated in the dust collect plant 100 along sweep-up pipe 30.Entering into big and heavy dust of dust collect plant 100 volumes and foreign matter can arrange to bulky grain thing outlet 232 from clasfficiator 230, and settles down in dust storage chamber 220.The fine dust that sucks is then told in clasfficiator 230, discharges to gathering portion 250 by returning pipe 241 then.Dust in the sweep-up pipe 30 can produce collision with the fine dust by 241 circulations of return pipe in gathering portion 250, thereby makes fine dust be agglomerated into bulky grain.In gathering portion 250, become big dust again can be again bulky grain thing outlet 232 by clasfficiator 230 enter in the dust storage chamber 220 and gather.The air that enters in the dust storage chamber 220 is then discharged to the outside by dust storage chamber outlet 221.

Claims (1)

1, a kind of dust collect plant of vacuum cleaner, it is characterized in that: the dust collect plant of described vacuum cleaner comprise be provided with the clasfficiator suction inlet (238) that links to each other with dust collecting port (10) by sweep-up pipe (30), by the terminal extension tube (237) that forms of rapid expansion clasfficiator suction inlet (238), form along the sidewall of extension tube (237), be used to the clasfficiator (230) of discharging the fine dust outlet (231) of isolated fine dust and being used to discharge the bulky grain thing outlet (232) of isolated bulky grain thing; The return pipe (241) that one end links to each other with fine dust outlet (231); For making the air in isolated fine dust of classified device (230) and the sweep-up pipe (30) produce collision and gather the portion that gathers (250) that forms by return pipe (241) other end and sweep-up pipe (30) intersection; Be connected the dust storage chamber (220) that bulky grain thing outlet (232) is located in order to isolate the bulky grain thing.