Indicator for dust collector

Abstract

The invention discloses an indicator for a dust collector. The indicator comprises a housing body and a lever, wherein the upper side at the left end of the housing body is provided with a rotating shaft; the lever is rotatably arranged on the upper side at the left end of the housing body via the rotating shaft; the upper side of the housing body of the indicator is provided with an observation window in a projecting way for observing the internal state of the indicator; the left side and the right side of the housing body are provided with an air outlet and an air inlet respectively; the airoutlet is communicated with the inside of the dust collector, and the air inlet is communicated with the outside of the dust collector; the lower side of the housing body positioned below the air outlet is provided with a second magnetic body; one end of the lever far away from the rotating shaft is provided with a first magnetic body; the first magnetic body and the second magnetic body are oppositely arranged; and the inside of the housing body is also provided with an indication body. The indicator can indicate different vacuum degrees in the indicator, so that a user knows the quantity variation situation of foreign materials collected by a dust bag via the observation window. Moreover, the indicator has low cost, and is beneficial for 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

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

[0010] In addition, the indicator of the vacuum cleaner, when the indicator body 33 moves, because the air flowing in at the air inlet 36 flows into the indicator through the gap between the indicator body 33 and the inner wall of the indicator housing 30, thus, the outside of the vacuum cleaner The air flow through the indicator into the dust collection space is small, and since the air flow from the suction port 1 and the suction hose 6 into the vacuum cleaner has been hindered, the air flow through the indicator cannot cool the motor in time The requirements of the vacuum cleaner motor inside the shell H seriously affect the service life of the vacuum cleaner motor

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