Indicator for dust collector

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 [0001] The invention relates to the technical field of mechanical dust removal, in particular to an indicator of a vacuum cleaner. Background technique [0002] Such as figure 1 As shown, a general vacuum cleaner 10 body includes a motor drive chamber 4 and a dust collection space 2 . The motor housing H with a fan (not shown) and a motor (not shown) that generates suction is installed in the above-mentioned motor drive chamber 4 . An exhaust member 9 is provided at the rear of the motor housing H to exhaust the air separated from the foreign matter to the outside of the vacuum cleaner 10 body. [0003] A suction inlet 1 is formed on the front side of the dust collection space 2 in front of the above-mentioned motor drive chamber 4, and a motor and a fan that can generate suction are provided between the dust collection space 2 and the exhaust member 9, so that the suction inlet 1 and The suction hose 6 connected to the suction inlet forms a suction force,...

AI Technical Summary

Problems solved by technology

Since the distance between the first magnetic body 31 and the second magnetic body 32 shown in the figure is relatively long, a relatively large magnetic force is required to seal the indicator, so it is necessary to use the highest level of permanent magnets, currently the highest High-grade permanent magnets are expensive, causing the cost of vacuum cleaner indicators to rise significantly

[0010] In addition, if foreign matter is accumulated in the dust bag 3, the flow of air flowing into the vacuum cleaner from the suction port 1 and the suction hose 6 will be hindered, resulting in the reduction of the air pressure in the dust collection space 2 and turning it into a vacuum state. Under the action of atmospheric pressure, the pointer 33 gradually moves towards the observation window. Since the repulsion between the first magnetic body 31 and the second magnetic body 32 is inversely proportional to the distance, after the pointer 33 moves, this The repulsive force between the two magnetic bodies increases, which hinders the further action of the indicator 33, so that the indicator 33 cannot normally reach the position of the observation window 34, and the indicator cannot correctly indicate the different vacuum degrees inside the vacuum cleaner. Thereby the user can't understand in time through the observation window 34 the change of the amount of foreign matter such as dust collected by the dust bag 3

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