CN2581726Y

CN2581726Y - Hand vacuum pump

Info

Publication number: CN2581726Y
Application number: CN 02262320
Authority: CN
Inventors: 黄华
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-14
Filing date: 2002-10-14
Publication date: 2003-10-22
Anticipated expiration: 2012-10-14

Abstract

The utility model relates to a hand-operated vacuum pump which is composed of a handle, a pull rod, a cylinder, a piston, a horn mouth, an O-shaped rubber sealing ring and two rubber rings, wherein a plurality of exhaust holes are evenly arranged on the piston and the horn mouth and are respectively covered by the rubber rings. The horn mouth has a curved surface in a shape engaged with the shape of hands when the thumbs and the forefingers of the hands hold tightly. The hand-operated vacuum pump is mainly used for pumping a plastic packing bag into vacuum, namely that food is arranged in the plastic packaging bag, and then the piston is pulled up and down by the hands so that the plastic packaging bag is pumped into vacuum; therefore, the utility model achieves the purpose that the food in the plastic packing bag can be stored for a long time under the vacuum state. The hand-operated vacuum pump has the advantages of simple structure and convenient operation, and is an ideal tool for families and tourists to keep the food fresh.

Description

A kind of hand-operating vacuum-pump

The utility model relates to a kind of hand-operating vacuum-pump.

In recent years, numerous food product adopts vacuum-packed method to store more.Be about to food and put into plastic packaging bag, then plastic packaging bag is evacuated, food can play fresh-keeping, corrosion-resistant effect under vacuum state, so that prolong the time that stock is preserved.But general vacuum packaging all must be finished with special purpose machinery, and therefore, general family just is difficult to carry out.

In sum, the utility model designs a kind of portable hand-operating vacuum-pump simple in structure, cheap, easy to operate exactly.

The utility model is to realize by such technological scheme: it is made up of handle, cylinder cap, piston, pull bar, cylinder barrel, loudspeaker mouth, two rubber bands, " O " type rubber seal.Described piston and pull bar place in the cylinder barrel, and " O " type rubber seal places in the groove of piston.Wherein, 4 exhaust ports are arranged on the piston, cover by rubber band on the exhaust port.Loudspeaker mouth, cylinder barrel and the loudspeaker mouth scyewed joint of bottom for grasping.Wherein, 4 exhaust ports are arranged on the loudspeaker mouth, the top of exhaust port covers with rubber band.Jump ring and nut, pad be contained in respectively two rubber bands above, prevent that rubber band from coming off.When vacuumizing, earlier the plastics package sack is placed on the horn mouth place of loudspeaker mouth, the plastics package sack is clutched with thumb and forefinger, hold handle with another then, spur piston pulling rod repeatedly up and down, the air in the plastic packaging bag can be discharged, make and form vacuum in the plastic packaging bag.

The working principle that vacuumizes is such:

1, air-breathing: piston moves upward, and the rubber band 11 on the loudspeaker mouth is lifted under the effect of air, and exhaust port is opened.Simultaneously, rubber band 7 is depressed under the effect of air, and 4 exhaust ports on the piston are closed.The interior air of plastic packaging bag this moment is inhaled in the cylinder barrel of vacuum pump.

2, exhaust: piston moves downward, and the rubber band 11 on the loudspeaker mouth is depressed under the effect of air, and exhaust port is closed.Simultaneously, rubber band 7 is lifted under the promotion of air, and 4 exhaust ports on the piston are opened, and the air in the cylinder barrel is discharged from.

Cylinder barrel in the utility model, loudspeaker mouth, piston, handle should be made with ABS plastic.Also available copper, aluminium, steel even glass are made.

The utility model is mainly used in food pack and vacuumizes, and can make the article in the plastic bag fresh-keeping under vacuum state, anticorrosion; The package bag that also can be used for clothes, electronic component vacuumizes, and can play the purpose of anticorrosion long-term storage equally.Be characterized in simple in structure, easy to operate, be easy to carry.

Below in conjunction with drawings and Examples the utility model is described in detail.

Fig. 1, be structural representation of the present utility model;

Fig. 2, be that the A of Fig. 1 is to view;

Fig. 3, be the B-B sectional view of Fig. 1;

Among the figure, 1, handle; 2, pull bar; 3, cylinder cap; 4, cylinder barrel; 5, nut; 6, pad; 7, rubber band; 8, piston; 9, " O " type rubber seal; 10, jump ring; 11, rubber band; 12, loudspeaker mouth.

During actual the use, food is put into plastic packaging bag, the oral area of plastic packaging bag and the horn mouth on the vacuum pump are adjacent to, hold horn mouth, hold handle with another then, spur piston up and down and get final product with the thumb and the forefinger of hand.Because rubber band 7 and rubber band 11 cover respectively on 4 exhaust ports on piston and the loudspeaker mouth, its effect is equivalent to one-way valve, spurs piston pulling rod up and down and carries out air-breathing, exhaust campaign, and repeated multiple times can realize plastic packaging bag is evacuated.

Claims

1, a kind of hand-operating vacuum-pump, it is characterized in that described vacuum pump is by handle, pull bar, cylinder barrel, piston, loudspeaker mouth, two rubber bands are formed with " O " type rubber seal, described piston places in the cylinder barrel, cylinder barrel and loudspeaker mouth scyewed joint, " O " type rubber seal places in the groove of piston.

2, hand-operating vacuum-pump according to claim 1 is characterized in that several exhaust ports are arranged on the described piston, and rubber band covers on exhaust port.

3, hand-operating vacuum-pump according to claim 1 is characterized in that on the described loudspeaker mouth several exhaust ports being arranged, and rubber band covers on exhaust port; The loudspeaker mouth has the thumb of a profile and staff, the curved surface that can match when forefinger is held with a firm grip.