CN2188660Y

CN2188660Y - Piston type inflater

Info

Publication number: CN2188660Y
Application number: CN 94225422
Authority: CN
Inventors: 刘振平
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-03
Filing date: 1994-03-03
Publication date: 1995-02-01
Anticipated expiration: 2004-03-03

Abstract

The utility model relates to a daily article, particularly a durable pressurizing inflator without a leather bowl. The center of a piston is provided with an exhaust hole, a sealing strip is fixed on the front end of the piston through a screw nail, the back end of the piston screws and assembles a compression rod on the back of the piston through a cap nut, and the whole piston is inserted and matched in the inflator. The using effects of the pressurization, the tightness and the durability are obtained.

Description

Piston type inflater

The utility model relates to a kind of articles for daily use, particularly a kind of durable supercharging pump that does not have leather cup.

The pump that existing market is sold, its device of calming the anger is the leather cup formula, this inflator is concluded nearly following shortcoming:

1. the back leather cup is often because of warpage damages for several times for existing inflator leather cup and tube wall effect, and losing to have effect.

2. existing inflator leather cup place clamping bolt comes off because of the fastening leather cup that often makes of can not exerting oneself, and is ineffective.

3. the life-span of existing inflator leather cup in pressurization changes along with pressure and number of times, and presents inverse ratio trend.

4. existing inflator can not make tire gas full when the carrying force car is pressurizeed.

The purpose of this utility model is to provide a kind of piston type device of calming the anger, and, adorns a piston that has a unidirectional air inlet of O type circle by depression bar in inflator that is, makes it to reach supercharging, tight and durable using effect.

The purpose of this utility model realizes by following measure:

It is made up of handle, spring, buckle closure, depression bar, inflator, piston, exhaust nozzle and base, described piston center has exhaust port, diaphragm seal are fastened on piston through screw front end, piston rear end through blind nut depression bar is revolved fit over piston after, solid piston edge fits in the inflator; Described piston external diameter is provided with O type circle and has oil groove, has inlet hole at piston rear end, and communicates with exhaust port; The depression bar front end clamps an elastic collar, and is press fit over piston rear end by blind nut.

Advantage of the present utility model and effect are:

1. monnolithic case is the same with existing inflator, and is not varying sized to change internal structure.

2. be the sealing of piston type rubber seal to change the leather cup air intake pressurized, unidirectional tonifying Qi (air inlet).

3. owing to the Sealing that adopts on seal ring sealing, not fragile its piston of the little and unidirectional gas supercharging of nourishing of piston and tube wall gap, one-way valve adopts plane offset plate diaphragm seal, makes integral body improve tens of times in motion with in pressurizeing than the original structure life-span.When occurring changing also very convenient and expense and lower after O-ring seal wears out and one-way valve lost efficacy in the use.

Description of drawings is as follows:

Accompanying drawing of the present utility model is the overall structure schematic representation.

Below in conjunction with the accompanying drawing illustrated embodiment the utility model is done further detailed description:

The utility model is calmed the anger the device except that device that the leather cup formula is calmed the anger makes piston type into, and other are identical with common inflator.1 time equipped depression bar 4 of handle, the front end of depression bar 4 has groove, and elastic collar 16 is snapped in the groove.Be equipped with on the piston 7 between two O RunddichtringOs 8, two circle and have oil groove 9, the rear end concave station car of piston 7 has screw thread, and blind nut 6 spins and the collar on the depression bar 4 16 is pressed on piston rear end on it, makes it to drive piston 7 and moves up and down in inflator 5.Have inlet hole 15 at the concave table side of piston 7 it is communicated with exhaust port 14, be fastened with elastic sealing strip 10 through screw 11 at the front end of piston 7.Whole piston is contained in the inflator 5 after forming, and it is airtight to be installed with buckle closure 3 on the inflator, puts a spring 2 on the buckle closure 3, when calming the anger in order to avoid collision hand or piston bump against a tube end.

During use, when piston 7 by on propose diaphragm seal 10 distortion, gas on the piston flows into the tube end from inlet hole 15 through exhaust port 14, and when pressing down, diaphragm seal 10 is sealed exhaust port 14, make outside exhaust nozzle 12 expelling tubes that an interior gas disposes on base 13, realize inflating purpose.

Its elastic sealing strip 10 can select for use rubber or plastic materials to make.

Claims

1, piston type pump, form by handle 1, spring 2, buckle closure 3, depression bar 4, inflator 5, piston 7, exhaust nozzle 12 and base 13, it is characterized in that described piston 7 centers have exhaust port 14, diaphragm seal 10 are fastened on piston 7 through screw 11 front end, piston 7 rear ends through blind nut 6 depression bar 4 is revolved fit over piston 7 after, solid piston edge fits in the inflator 5.

2, pump as claimed in claim 1 is characterized in that described piston 7 external diameters are provided with O type circle 8 and have oil groove 9, have inlet hole 15 in piston 7 rear ends, and communicate with exhaust port 14; Depression bar 4 front ends clamp an elastic collar 16, and are press fit over piston 7 rear ends by blind nut 6.