CN200955481Y

CN200955481Y - Hand-driven vacuum pump

Info

Publication number: CN200955481Y
Application number: CN 200620045365
Authority: CN
Inventors: 朱洪兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-31
Filing date: 2006-08-31
Publication date: 2007-10-03
Anticipated expiration: 2016-08-31

Abstract

The utility model discloses a manual vacuum pump, which is composed of a handle, a jar lid, a piston, a slide bar, a jar cylinder, a trumpet nozzle, and two rubber rings and a capitalized x letter rubber seal ring; wherein, the piston and the slide bar are positioned in the jar cylinder, while the capitalized x letter rubber seal ring is positioned in a groove of the piston. The utility model is designed to solve the problems existing in the current manual vacuum pump, like the leakage and short service life and so on, with the advantages of simple structure and convenient usage.

Description

A kind of hand-operating vacuum-pump

Technical field

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

Background technique

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.At present, there have been some home-use vacuum pumps in market, when vacuumizing, earlier the plastics package sack is placed on the horn mouth place of loudspeaker mouth, with thumb and forefinger the plastics package sack is clutched, held handle with another then, spur piston pulling rod repeatedly up and down, 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: piston moves upward when air-breathing, and the rubber band on the loudspeaker mouth is lifted under the effect of air, and exhaust port is opened.Simultaneously, rubber band is depressed under the effect of air, and the individual exhaust port on the piston is closed.The interior air of plastic packaging bag this moment is inhaled in the cylinder barrel of vacuum pump.Piston moves downward during exhaust, and the rubber band on the loudspeaker mouth is depressed under the effect of air, and exhaust port is closed.Simultaneously, rubber band is lifted under the promotion of air, and the individual exhaust port on the piston is opened, and the air in the cylinder barrel is discharged from.The critical component that guarantees the energy proper functioning of vacuum pump is " O " type rubber seal, the pressure that vacuum pump moves repeatedly all acts on but is this " O " type rubber seal, " O " type rubber seal is owing to be subjected to aging and the influence of motion repeatedly, cause that seal is tight, leakage, working life be short, the vacuum pump cisco unity malfunction.Not only inconvenience but also the lose time when Consumer uses.Need a kind of hand-operating vacuum-pump for this reason, address the aforementioned drawbacks.

Summary of the invention

The utility model is the problem that will solve existing manual vacuum pump seal, and a kind of antileakaging hand-operating vacuum-pump is provided.

For achieving the above object, the technical solution of the utility model is:

A kind of hand-operating vacuum-pump is made up of handle, cylinder cap, piston, pull bar, cylinder barrel, loudspeaker mouth, two rubber bands, " X " type rubber seal.Piston and pull bar place in the cylinder barrel, and " X " 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.Piston moves upward when air-breathing, 4 gases that exhaust port enters from the loudspeaker mouth, in cylinder barrel, a side of " X " RunddichtringO is under pressure, and produces deformation, make gas can not leak into opposite side, piston moves downward during exhaust, and the opposite side of " X " RunddichtringO is under pressure, and makes it seal up gas portion and walks downwards, making has 4 exhaust ports to open on the piston, and gas is discharged.Sealing circle both sides all can produce deformation by pressurized, produce sealing effect.

The utility model has effectively solved existing hand-operating vacuum-pump seal leakage, short problem of life-span, and has had characteristics such as simple in structure, easy to use owing to adopt " X " RunddichtringO.

Description of drawings

Fig. 1 is the structural representation of the utility model " X " RunddichtringO;

Fig. 2 is a structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

As shown in Figure 1, a kind of structural representation of rubber seal 9 of hand-operating vacuum-pump.

As shown in Figure 2, a kind of hand-operating vacuum-pump by 1, handle; 2, pull bar; 3, cylinder cap: 4, cylinder barrel: 5, nut; 6, pad; 7, rubber band; 8, piston; 9, " X " type rubber seal; 10, jump ring; 11, rubber band; 12, the loudspeaker mouth is formed, and piston 8 and pull bar 2 place in the cylinder barrel 4, and " X " type rubber seal 9 places in the groove of piston 8.Wherein, 4 exhaust ports are arranged on the piston 8, cover by rubber band 7 on the exhaust port.The loudspeaker mouth 12 of bottom for grasping, cylinder barrel 4 is used scyewed joint with loudspeaker mouth 12.Wherein, 4 exhaust ports are arranged on the loudspeaker mouth 12, the top of exhaust port covers with rubber band 7.Jump ring 10 and nut 5, pad 6 be contained in respectively two rubber bands 7 above, prevent that rubber band 7 from coming off.Piston 8 moves upward when air-breathing, four gases that exhaust port enters from the loudspeaker mouth 12, in cylinder barrel, a side of " X " RunddichtringO 9 is under pressure, and produces deformation, make gas can not leak into opposite side, piston 8 moves downward during exhaust, and the opposite side of " X " RunddichtringO 9 is under pressure, and makes it seal up gas and does not walk downwards, making has four exhaust ports to open on the piston 8, and gas is discharged.Sealing circle both sides all can produce deformation by pressurized, produce sealing effect.

Claims

1. hand-operating vacuum-pump, by handle (1), pull bar, cylinder barrel (2), piston (8), loudspeaker mouth (12), two rubber bands (7) and rubber seal (9) are formed, described piston (8) places in the cylinder barrel (2), and cylinder barrel (2) is used scyewed joint with loudspeaker mouth (12), and rubber seal (9) places in the groove of piston (8), described piston has several exhaust ports on (8), rubber band (7) covers on exhaust port, it is characterized in that, rubber seal (9) is shaped as X-shaped.