CN2320820Y - Low-pressure liquid fuel tank air pump - Google Patents

Abstract

The utility model comprises a machine body, a left air chamber and a right air chamber, a left foldable air chamber rubber cup and a right foldable air chamber rubber cup, an electric motor, a connecting rod, a connecting rod center bearing and a cam rocker arm. The left air chamber and the right air chamber are installed on the machine body, the left foldable air chamber rubber cup and the right foldable air chamber rubber cup are respectively installed on the left air chamber and the right air chamber, and the left end of the connecting rod and the right end of the connecting rod are respectively connected with the top end of both the left foldable air chamber rubber cup and the right foldable air chamber rubber cup. The cam rocker arm is arranged on an output bearing of the electric motor, and the end of the cam rocker arm is inserted into the connecting rod center bearing in the middle of the connecting rod. The connecting rod can be toggled so as to enable the left foldable air chamber rubber cup and right foldable air chamber rubber cup to stretch and compress alternately. The utility model has the advantages of no impact while working, low noise, little wear, long service life, and low operation cost.

Description

A kind of low pressure liquid fuel pot air pump

The utility model belongs to the pneumatic pump technical field.

The air pump of low pressure liquid fuel pot in the market generally adopts by the motoring cam, and cam drive air chamber connecting rod is alternately made horizontal motion left, to the right, makes that air chamber produce to be inhaled, exhaust action and give the structure of fuel pot supercharging.The deficiency of prior art has bump when being work, vibration is big, and noise is big, and mechanism wear is big, and the life-span is short, the maintenance expenses height.

The purpose of this utility model is to provide a kind of air pump that is directly driven the structure of air chamber connecting rod by cam rocker arm that has.

The purpose of this utility model is achieved in that a kind of low pressure liquid fuel pot air pump, comprises body, left air chamber, left folding type air chamber leather cup, right air chamber, right folding type air chamber leather cup, motor, connecting rod, connecting rod centre bearing and cam rocker arm.Left side air chamber and right air chamber are installed on the left and right end of body.Left side folding type air chamber leather cup is contained on the left air chamber, and right folding type air chamber leather cup is contained on the right air chamber, forms airtight space.The left end of connecting rod is connected with left folding type air chamber leather cup top, and right-hand member is connected with right folding type air chamber leather cup top.Motor is fixed on the body, and rocking arm is contained on the motor output shaft, rotates with output shaft, and the end of cam rocker arm inserts in the connecting rod centre bearing at connecting rod middle part.During work, motor output shaft rotates, be that the driving cam rocking arm rotates, cam rocker arm is stirred connecting rod, connecting rod had not only been moved downward to the right but also upwards left, thereby left and right folding type air chamber leather cup is alternately stretched, compresses, and the air-breathing and exhaust by the rubber valve in the air chamber exports the gas boosting in the air chamber in the fuel pot to.

The utility model has the advantages that not have bump during work, mechanism operates steadily, and surface friction drag is little, and noise is low, and it is little to wear and tear, and the life-span is long, must often not keep in repair, and operating cost is low.

Fig. 1 is a structural drawing of the present utility model.Fig. 1 is described as follows: 1 is body, and 2 is left air chamber, and 3 is left folding type air chamber leather cup, and 4 is right air chamber, and 5 is that right folding type air chamber skin is true, and 6 is motor, and 7 is connecting rod, and 8 is the connecting rod centre bearing, and 9 is cam rocker arm.

Claims (1)

1, a kind of low pressure liquid fuel pot air pump, comprise body (1), left air chamber (2), left folding type air chamber leather cup (3), right air chamber (4), right folding type air chamber leather cup (5) and motor (6), it is characterized in that also comprising connecting rod (7), connecting rod centre bearing (8) and cam rocker arm (9); Left side air chamber (2) is contained in the left end of body (1), and right air chamber (4) is contained in the right-hand member of body (1), and left folding type air chamber leather cup (3) is contained on the left air chamber (2), and right folding type air chamber leather cup (5) is contained on the right air pressure (4), forms airtight space; The left end of connecting rod (7) is connected with the top of left folding type air chamber leather cup (3), and right-hand member is connected with the top of right folding type air chamber leather cup (5); Motor (6) is installed on the body (1), cam rocker arm (9) is contained on the output shaft of motor (6), rotate with output shaft, the end of cam rocker arm (9) inserts in the connecting rod centre bearing (8) at connecting rod (7) middle part, cam rocker arm stir when rotating connecting rod (7) done not only left, to the right but make progress, downward motion, thereby left and right folding type leather cup (3), (5) are alternately stretched, compress.

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