CN2644701Y

CN2644701Y - Telescope-feed inflator

Info

Publication number: CN2644701Y
Application number: CN 03238172
Authority: CN
Inventors: 张鸿民
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-12
Filing date: 2003-09-12
Publication date: 2004-09-29
Anticipated expiration: 2013-09-12

Abstract

The utility model relates to the technology of manual tire inflation, in particular to an inflator of sleeve type, comprising an outer sleeve (4), an inner liner (11) and a base (12). The utility model is characterized in that: the included angle between the axial line of a bottom gas outlet (14) in the base (12) and the axial line of the tube body is: Alpha is more than 0 degree and less than or equal to 90 degrees; a leather cup (5) and a check valve (7) are arranged at one end of the inner cylinder (11), wherein the structure of the leather cup (5), which is sleeved on the check valve (7), is bowl-shaped with hole on the bottom, the outer boundary of the leather cup (5) is matched with the outer sleeve (4) closely, the gas in and out gaps are positioned between the check valve (7) and base hole of the leather cup (5) which moves up and down along the check valve (7), the other end of the inner cylinder (11) is connected with the base (12) by screw thread, the cavity of the inner cylinder is connected with the bottom gas outlet (14) of the base (12). The utility model, which has the advantages of labor saving, high inflation efficiency and healthy and clean use, is suitable for bicycle, motorcycle and tricycle.

Description

A kind of telescopic pump

Technical field

The utility model relates to tire and manually inflates technology, is specially a kind of telescopic pump.

Background technique

Common pump mostly is leather cup formula pump and air storing type pump, common pump is to move up and down to hold the handle that connects piston rod, drive piston and directly air is pressed in the tire, perhaps air is pressed into high-pressure chamber, gas is entered in the tire uniformly by high-pressure chamber again.Owing on the piston rod greasy dirt is arranged, need extreme care when inflating, otherwise tend to make dirty hand or clothes, because piston is the ox-hide making, and thicker, surface friction drag is big during use, relatively effort.

Some telescopic pumps appear recently, comprise handle, urceolus, inner core, base, foot-operated ring, the sebific duct of giving vent to anger, give vent to anger and chew folder etc., China's utility model patent (patent No. is 95232188.2) discloses a kind of telescopic pump, its main technical points is to connect pipe on the base, piston and check valve are equipped with in the upper end of interior pipe, outside interior pipe, be with an outer tube, the top of outer tube is connected with handle, pneumatic tube is connected with the bottom side valve of interior pipe, its deficiency is that its inflator base outgassing direction is for vertically upward, be that pressurized gas need through descending, level, after up, by the sebific duct of giving vent to anger, giving vent to anger to chew to press from both sides enters in the tire, and it is smooth and easy inadequately therefore to give vent to anger, inflation pressure is relatively low, charging efficiency is not high, and the sebific duct of giving vent to anger is easy to break, and working life is shorter.

The model utility content

The purpose of this utility model be to provide a kind of laborsaving, charging efficiency is high, use the clean telescopic pump of health.

The technical solution of the utility model is:

A kind of telescopic pump has urceolus, inner core (storage pressure cylinder), base, the angle of give vent to anger bottom outlet axis and cylindrical shell (urceolus or inner core) axis in the base: 0 °＜α≤90 °.

Described inner core one end is equipped with leather cup and check valve, leather cup is the bowl structure of bottom opening, be set in check valve, leather cup outer rim and urceolus closely cooperate, between the leather cup bottom outlet of the upper and lower activity of check valve and check valve, be provided with the inlet, outlet gap, the inner core the other end is connected with base by thread, and the bottom outlet of giving vent to anger in inner core chamber and the base is communicated with.The check valve upper flange can be ellipse, and its long axis direction size is greater than the leather cup bottom diameter, and its short-axis direction size is less than the leather cup bottom diameter; The check valve upper flange can also be the rectangular flange, and its length is greater than the leather cup bottom diameter, and width when contacting with the check valve upper flange with the assurance leather cup, still has the air inlet gap less than the leather cup bottom diameter.

Described urceolus one end is the metal cover sealing, and sealing means is for welding or being threaded, and capping links to each other with handle by column, and the urceolus the other end is equipped with guide sleeve, leaves the gap between guide sleeve and the inner core, and the gap is 0.5～2mm.

Described check valve is connected with inner core by the attaching nut, attaching nut and check valve are by being threaded, be coated with pin on the attaching nut, be used to block check valve core, the attaching nut outside has groove, the attaching nut is that groove type presses embedding to be connected with the inwall of inner core, earlier check valve is connected with the attaching nut, places then on the inner core, again from the pressurization of inner core lateral attaching nut's groove position, make it charge into groove, formation closely cooperates.

On the groove of the described check valve outside check valve guide ring is housed.

The beneficial effects of the utility model are:

1, the utility model connects the angle of give vent to anger bottom outlet axis and the tubular axis of sebific duct: 0 °＜α≤90 °, it is big to go out atmospheric pressure, and charging efficiency is higher, and not easy to break, easy to use can make sebific duct work the time, the working life of prolongation sebific duct.

2, the utility model leather cup and outer tube inner wall in the form of a ring line contact, surface friction drag is little during work, tightness is good, does not have the pressure air loss, inflate laborsaving, save time the leather cup long service life.

3, the utility model check valve is connected by the attaching nut with inner core, and inner core is connected with base by thread, dismantles easy to maintenance.

4, the utility model urceolus one end is the metal cover sealing, and sealing means is for welding or be threaded its good sealing effect.

5, the utility model is applicable to tyre inflation such as bicycle, motorcycle, tricycle.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is a leather cup structural representation among Fig. 1.

Fig. 3 be among Fig. 1 A to view.

Embodiment

Shown in Fig. 1～3, the utility model is by handle 1, column 2, capping 3, urceolus 4, leather cup 5, check valve guide ring 6, check valve 7, the attaching nut 8, pin 9, guide sleeve 10, inner core (storage pressure cylinder) 11, base 12, foot-operated ring 13, the bottom outlet 14 of giving vent to anger, sebific duct 15, give vent to anger and chew folder 16, check valve core 17, screw 18 constitutes, the angle of give vent to anger bottom outlet 14 axis and tubular axis in the base 12 is 45 °, inner core 11 1 ends are equipped with leather cup 5 and check valve 7, leather cup 5 is the bowl structure of bottom opening, be set in check valve 7, leather cup 5 outer rims and urceolus 4 closely cooperate, along on the check valve 7, be provided with between following movable leather cup bottom outlet and the check valve 7, the gap of giving vent to anger, check valve 7 upper flanges are the rectangular flange, its length is greater than the leather cup bottom diameter, width is less than the leather cup bottom diameter, when contacting with check valve 7 upper flanges with assurance leather cup 5, the air inlet gap is still arranged, inner core 11 the other ends and base 12 are by being threaded, the bottom outlet 14 of giving vent to anger in inner core chamber and the base 12 is communicated with, urceolus 4 one ends are metal cover 3 sealings, capping 3 links to each other with handle by column, urceolus 4 the other ends are equipped with guide sleeve 10, leave the gap between guide sleeve 10 and the inner core 11, the gap is 1mm, check valve 7 is connected with inner core 11 by attaching nut 8, attaching nut 8 and check valve 7 are by being threaded, be coated with pin 9 on the attaching nut 8, be used to block check valve core 17, attaching nut 8 outsides have groove, attaching nut 8 is that groove type presses embedding to be connected with the inwall of inner core 11, on check valve 7 outside grooves check valve guide ring 6 is housed.

Its assembly process:

Inner core (storage pressure cylinder) 11 lower ends and base 12 are fixed for screw thread, and guide sleeve 10 is enclosed within on the inner core 11, and inner core 11 upper ends are that groove type presses embedding to be connected with attaching nut 8; Check valve 7 is connected on the attaching nut 8 with screw thread, attaching nut 8 is before embedding inner core 11, to sell 9 first-class earlier, place inner core 11 upper ends to fix then, put into check valve core 17 successively, screw check valve 7, leather cup 5 is enclosed within check valve 7 tops, put check valve guide ring 6, more than constitute storage pressure cylinder assembly; Urceolus 4 inwalls are smoothened with lubricant oil, the storage pressure cylinder assembly that assembles is inserted urceolus 4, with screw 18 that guide sleeve 10 is fixing with urceolus 4, handle 1 and column 2 are by being threaded, and 2 times cappings of column 3 are welding, and capping 3 is to weld with urceolus 4.

Working procedure of the present utility model is:

When handle 1 upwards drew, air entered in the urceolus 4 through the gap of leather cup 5 with check valve 7 through the gap of guide sleeve 10 with inner core (storage pressure cylinder 11) outer wall again, finishes breathing process; Handle 1 is to pressing down then, this moment, leather cup 5 sealed the inwall and the check valve 7 of urceolus 4, and check valve core 17 is opened under the pressure of air-flow, and high-pressure air enters in the inner core 11, high-pressure air through give vent to anger bottom outlet 14, sebific duct 15, give vent to anger and chew folder 16 and discharge, finish an inflation action.

Claims

1, a kind of telescopic pump has urceolus (4), inner core (11), base (12), it is characterized in that: the bottom outlet of giving vent to anger (14) axis in the base (12) and the angle of tubular axis: 0 °＜α≤90 °.

2, according to the described telescopic pump of claim 1, it is characterized in that: described inner core (11) one ends are equipped with leather cup (5) and check valve (7), leather cup (5) is the bowl structure of bottom opening, be set in check valve (7), leather cup (5) outer rim and urceolus (4) closely cooperate, between the leather cup bottom outlet of the upper and lower activity of check valve (7) and check valve (7), be provided with the inlet, outlet gap, inner core (11) the other end and base (12) be by being threaded, and the inner core chamber is communicated with the bottom outlet of giving vent to anger (14) in the base (12).

3, according to the described telescopic pump of claim 2, it is characterized in that: described urceolus (4) one ends are metal cover (3) sealing, sealing means is for welding or being threaded, capping (3) links to each other with handle by column, urceolus (4) the other end is equipped with guide sleeve (10), leaves the gap between guide sleeve (10) and the inner core (11).

4, according to the described telescopic pump of claim 3, it is characterized in that: the gap is 0.5～2mm between described guide sleeve (10) and the inner core (11).

5, according to the described telescopic pump of claim 2, it is characterized in that: described check valve (7) is connected with inner core (11) by attaching nut (8), attaching nut (8) and check valve (7) are by being threaded, be coated with pin (9) on the attaching nut (8), attaching nut (8) outside has groove, and attaching nut (8) is that groove type presses embedding to be connected with the inwall of inner core (11).

6, according to the described telescopic pump of claim 2, it is characterized in that: on the groove of described check valve (7) outside check valve guide ring (6) is housed.

7, according to the described telescopic pump of claim 2, it is characterized in that: the upper flange of described check valve (7) is ellipse or rectangular.