CN2709674Y

CN2709674Y - Vacuum pump

Info

Publication number: CN2709674Y
Application number: CN 200420045709
Authority: CN
Inventors: 张锡新
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-13
Filing date: 2004-05-13
Publication date: 2005-07-13
Anticipated expiration: 2014-05-13

Abstract

The utility model relates to a vacuum pump which comprises an air cylinder with an air nozzle, a piston arranged in a cylinder cavity of the air cylinder, and a drawing rod which is provided with a handle and is fixedly connected with the piston, wherein, one end of the drawing rod extends out the cylinder cavity. The utility model is characterized in that a grating ring with a middle pore is arranged on the wall of an air pumping pore on the combined part of an air pumping pore of the air nozzle and the cylinder cavity of the air cylinder; the surface of the grating ring is provided with a diaphragm type one-way valve which comprises a valve sheet in the shape of a circular arc; a convex grain which can be fastened in the middle pore of the grating ring is arranged in the middle of the valve sheet. Because the utility model adopts the structural style that the diaphragm type one-way valve is arranged on the grating ring with a middle pore, the utility model can ensure that air current can be pumped along an air opening uniformly when the air is pumped, and the valve sheet has good sealing performance to prevent the air from flowing back when the drawing rod is pushed inwards. Nozzle openings in the shape of an arc tooth are arranged around the periphery of the front end of an air nozzle for effectively preventing the contraction of the air nozzle with a vacuum bag when negative pressure is pumped and ensuring that the air current is smooth. In addition, the outerwall of the air cylinder and the handle are reasonably designed for making use convenient and reliable.

Description

A kind of vacuum pump

Technical field

The utility model relates to a kind of air pump, particularly a kind of hand-operating vacuum-pump with the function of vacuumizing.

Background technique

Along with improving constantly of people's living standard, some are convenient, practical article are widely used in the family, with regard to storing family article, usually cold snap needs the winter protection cotton products are packaged into cabinet later, because though this based article is light but its volume is bigger, so need take more space in the storage, for solving above-mentioned existing problems, people have invented a kind of vacuum bag, after during use cotton products being put into, chew by the plug into gas of vacuum bag setting of home-use vacuum cleaner, when in bag, vacuumizing, also realized article volume in the compressed bag, the purpose that is easy to deposit.Meanwhile, all kinds of bacteria breeds in the end bag also can fall in method that employing vacuumizes greatly, help the preservation of article, are to purchase a vacuum cleaner but adopt the existing deficiency of said method, and under existing living standard situation, this mode can restrict the promotion and application of vacuum bag.

Summary of the invention

The purpose of this utility model be at above-mentioned existing problems provide a kind of simple, practical and can with the supporting vacuum pump of vacuum storing bag.

The technical solution of the utility model is a kind of vacuum pump, comprise the inflator that band gas is chewed, be arranged in the inflator tube chamber piston and with the affixed and end of piston stretch out a chamber the band handle take out bar, be characterized in described gas chew the hole wall of bleeding of bleeder hole and connecting part, inflator tube chamber be provided with one the band mesopore grating ring, a diaphragm type one-way valve is equipped with on described grating ring surface, described diaphragm type one-way valve comprises that one is the valve block of circular arc, is provided with the protruding grain that can buckle into the set mesopore of grating ring at the valve block middle part.

The further technological scheme of the utility model is that above-mentioned protruding grain is one-body molded with valve block, and described protruding grain front end is provided with the boss that is taper that can be fastened on the grating ring mesopore.Above-mentioned gas is chewed the front end edge periphery and is provided with and is curved tooth shape and chews mouth.

The utility model since adopted with diaphragm type one-way valve be arranged at one the band mesopore grating ring on structural type, air-flow can be extracted out uniformly along gas port in the time of can not only guaranteeing to bleed, and when taking out bar and inwardly push away, valve block has good sealing property, gas is produced reflux.And gas is chewed the mouth of chewing that is curved tooth shape that the front end edge periphery is provided with, the contraction that vacuum bag gas is chewed in the time of can effectively preventing to take out negative pressure has guaranteed the smooth and easy of air-flow, in addition, reasonably inflator outer wall and handle design can be used and become convenient and reliable, for the storage of article provides a kind of new product.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the diaphragm type one-way valve structural representation.

Embodiment

The utility model such as Fig. 1, shown in Figure 2, a kind of vacuum pump, comprise and be with gas to chew 11 inflator 1, be arranged in 1 chamber of inflator piston 2 and with piston an affixed and end stretch out a chamber band handle 22 take out bar 21, be characterized in that described gas chews the grating ring 12 that the hole wall of bleeding of 11 bleeder holes and connecting part, 1 chamber of inflator is provided with a band mesopore 12a, a diaphragm type one-way valve 3 is equipped with on described grating ring 12 surfaces, described diaphragm type one-way valve 3 comprises that one is the valve block 31 of circular arc, be provided with the protruding grain 32 that can buckle into grating ring 12 set mesopore 12a at valve block 31 middle parts, the above-mentioned diaphragm type one-way valve that is made of protruding grain 32 and valve block 31 adopts the one-body molded manufacturing of silica gel, and described protruding grain 32 front ends are provided with the boss 32a that is taper that can be fastened on grating ring 12 mesopore 12a.Combine the connecting part chew contraction because of negative pressure produces gas when bleeding for preventing that gas from chewing to chew with vacuum bag gas, above-mentioned gas is chewed 11 front end edge peripheries and is provided with and is curved tooth shape and chews a mouthful 11a.For conveniently holding, above-mentioned inflator 1 is provided with the ripple 1a that is continuous arcuation along the outer tube wall periphery, and above-mentioned handle 22 comprises handle bar 22a and bar cover 22b, and described handle bar 22a is flat strip shaped, be provided with inside groove in handle bar 22a both sides, described bar cover 22b one end is provided with for taking out bar 21 and inserts vestibule.

Claims

1, a kind of vacuum pump, comprise and be with gas to chew the inflator (1) of (11), be arranged in inflator (1) the tube chamber piston (2) and and piston is affixed and an end stretch out a chamber band handle (22) take out bar (21), it is characterized in that described gas chews the grating ring (12) that the hole wall of bleeding of (11) bleeder hole and inflator (1) tube connecting part, chamber is provided with a band mesopore (12a), a diaphragm type one-way valve (3) is equipped with on described grating ring (12) surface, described diaphragm type one-way valve (3) comprises that one is the valve block (31) of circular arc, is provided with the protruding grain (32) that can buckle into the set mesopore of grating ring (12) (12a) at valve block (31) middle part.

2, vacuum pump according to claim 1 is characterized in that above-mentioned protruding grain (32) and valve block (31) are one-body molded, and described protruding grain (32) front end is provided with the boss that is taper (32a) that can be fastened on grating ring (12) mesopore (12a).

3,, it is characterized in that above-mentioned gas chews (11) front end edge periphery and be provided with and be curved tooth shape and chew mouthful (11a) according to the described vacuum pump of claim 1.

4,, it is characterized in that above-mentioned inflator (1) is provided with the ripple (1a) that is continuous arcuation along the outer tube wall periphery according to the described vacuum pump of claim 1.

5, according to the described vacuum pump of claim 1, it is characterized in that above-mentioned handle (22) comprises handle bar (22a) and bar cover (22b), described handle bar (22a) is flat strip shaped, is provided with inside groove in handle bar (22a) both sides, and described bar cover (22b) end is provided with for taking out bar (21) and inserts vestibule.