CN2119516U

CN2119516U - Portable multifunctional inflator

Info

Publication number: CN2119516U
Application number: CN 91203238
Authority: CN
Inventors: 于嘉伍
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-02-28
Filing date: 1991-02-28
Publication date: 1992-10-21

Abstract

The utility model belongs to a manual inflating tool which is made of plastics and is composed of a double-layer telescoped inflator, a push rod, an air pipe, a one-way valve and a standard rubber sealing ring. The utility model is convenient for being carried about or being carried with the bicycle, and has the function of self-pressurizing, easy inflation of bicycle tyre, and, multiple functions of inflating various inflatable toys, etc. The utility model has the advantages of simple manufacturing process, low cost and simple operation, and is appropriate for mass production as the common inflator.

Description

Portable multifunctional inflator

The utility model relates to manual inflation pump, particularly a kind of portable multi-functional pump.

At present the pump that uses of people is to use welded pipe to make mostly, manufacturing process complexity not only, and also for guaranteeing to have enough inner gas pressures and aeration quantity, the general design of external dimension is bigger, and quality is heavy, is not easy to carry.

The purpose of this utility model refers to providing a kind of intussusception size little, in light weight, portable multi-functional pump.

The utility model is made up of outer inflator 1, interior inflator 2, push rod 3 intussusceptions.The lower end external diameter that is limited the push rod 3 that can slide along interior inflator 2 inner chambers by gland 7 is embedded with O-ring seal 12.Limited and can one-way valve 10 be housed along interior inflator 2 bottom diameters that outer inflator 1 inner chamber slides by gland 8, external diameter is embedded with O-ring seal 11.The lower end of outer inflator 1 has the screw 14 of giving vent to anger, and one-way valve 9 is housed.

Push rod 3 of the present utility model is hollow, and tracheae 4 can be put into cavity.

Outer inflator 1 of the present utility model, interior inflator 2, push rod 3, handle 5, gland 7,8 all can adopt moulding.

Because the utility model adopts the cover stack structure, critical piece all can adopt moulding, and therefore, it has, and volume is little, in light weight, good airproof performance, aeration quantity foot, advantages such as the U.S. non-corrosive of outward appearance, and its manufacturing process is simple, cost is low, be particularly suitable for production in enormous quantities.

The utility model can also utilize annex gas shown in Figure 2 to chew 15 for water wing, balloon, ball are inflated, realization is multi-functional.

Fig. 1 is the utility model structure sectional view;

Fig. 2 chews sectional view for the utility model annex gas;

Below in conjunction with accompanying drawing the utility model is further described:

As shown in Figure 1, this reality whence novelly comprises outer inflator 1, interior inflator 2, push rod 3, reaches 4 four basic elements of character of tracheae.The one-way valve 9 and the screw 14 of giving vent to anger are equipped with in the lower end of outer inflator 1.Interior inflator lower end external diameter has annular groove one, and standard O type O-ring seal 11 is housed in the groove, forms airtight piston; Internal diameter is fixed with one-way valve 10 by jump ring 13.Interior inflator screws on gland 8 to set upright interior inflator after inserting outer inflator inner chamber, and O-ring seal 11 is divided into lower chamber with inflator.Interior inflator inner chamber is equipped with push rod 3, and its lower end also has annular groove one, and groove is embedded with O type O-ring seal 12 and has four notch 16(such as A-A sectional drawing in the lower edge of this groove), form unidirectional Air-tight piston.When push rod 3 upwards drew, cushion rubber 12 was affixed to the annular groove lower edge, and the epicoele air enters cavity of resorption by cushion rubber internal diameter and four notches 16.When push rod when pressing down, cushion rubber is affixed to the annular groove upper edge, because of the upper edge does not have notch, so air is sealed.Equally, behind the inflator inner chamber, screw on gland 7 in push rod is packed into, set upright push rod, screw handle 5 in the push rod upper end then.Push rod 3 can be designed to cavity, and outer neck and the hole of handle 5 of tracheae 4 by its outer end nut 17 closely cooperates and be contained in this cavity.Pump can carry with car by clamp 6 clampings that are fixed on the bicycle cant beam 19.Outer inflator 1 of the present utility model, interior inflator 2, push rod 3, handle 5, gland 7,8 all can adopt moulding, and tracheae 4 can use high-pressure rubber pipe to make.

In the time will using, extract tracheae 4 out, double-screw bolt 18 is screwed in the screw 14 of giving vent to anger, the other end nut 17 is screwed on the tire valve cock, and pulling handle 5 drives push rod 3, and the air in the interior inflator inner chamber enters lower chamber by upper gas chamber.Be glanded 7 when blocking when push rod is pulled to, inflator moves upward with push rod in being driven by gland 7, and air enters the lower chamber in outer inflator chamber by one-way valve 9, and the air of upper gas chamber is by the space discharge of gland 8.Block when interior inflator bottom piston is glanded 8, promptly finish air inlet.Then press down pusher grip, interior inflator inner chamber lower chamber air is compressed, and pressurized air enters the lower chamber of wrist in the outer inflator by one-way valve 10, enters tire by tracheae 4.Continue to press down pusher grip, handle contacts with gland 7, and inflator moves downward in promoting, and compresses outer inflator inner chamber lower chamber, and air continues to enter tire through tracheae 4.And so forth, can finish the inflation purpose.And, when the tire internal air pressure is raised to certain altitude, can only inflate with push-rod piston, interior inflator is motionless, the lower chamber of outer inflator plays the air storage pressurization, make inflate laborsaving.

Claims

1, a kind of portable multi-function pump, it is made up of all parts such as inflator and derivation sebific ducts, it is characterized in that inflator is made up of outer inflator 1, interior inflator 2, push rod 3 intussusceptions, the lower end external diameter that is limited the push rod 3 that can slide along interior inflator 2 inner chambers by gland 7 is embedded with O-ring seal 12, limit and along interior inflator 2 bottom diameters that outer inflator 1 inner chamber slides one-way valve 10 to be housed by gland 8, external diameter is embedded with O-ring seal 11, and the lower end of outer inflator 1 has the screw 14 of giving vent to anger, and one-way valve 9 is housed.

2, pump according to claim 1 is characterized in that push rod 3 has the cavity that can put into tracheae 4.

3, pump according to claim 1 and 2 is characterized in that outer inflator 1, interior inflator 2, push rod 3, handle 5, gland 7,8 all can adopt moulding.