CN201003475Y

CN201003475Y - Minisize air pump for automobile

Info

Publication number: CN201003475Y
Application number: CNU2006201069185U
Authority: CN
Inventors: 张正生; 陈文鸥
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-15
Filing date: 2006-08-15
Publication date: 2008-01-09
Anticipated expiration: 2016-08-15

Abstract

The utility model relates to a motor vehicle accessory, in particular to a tiny air pump for the use of a car and arranged on the car body, and consists of a pump body and a micro machine. The piston in the air cylinder of the pump body is provided with a piston sealing ring which matches the cylinder wall. The piston is provided with a plurality of air inletting holes which are communicated upwards and downwards; the upper head face of the piston is covered with a rubber valve plate which is pressed by a spiral spring. The piston sealing ring and the valve sealing ring are made of a fluorubber material and the valve plate on the upper head face of the piston is made of a silastic material. As the fluorubber material and the silastic material is high temperature durable and wear-resistant, the shape of the pump is not easy to be changed permanently, the service period is lengthened, and the cost in the operation and repair of the air pump is reduced.

Description

A kind of automobile micro air pump

Technical field:

The utility model relates to the motor vehicle accessory, particularly is fixed in the miniature special pump on the car body.

Background technique:

Along with the development of Hyundai Motor technology, the functional configuration in the luxurious automobile is more and more, and wherein many functions need micro air pump to realize.Automobile micro air pump in the prior art, form by the pump housing and micro motor, pump housing cylinder barrel inner carrier is equipped with the nitrile rubber seal ring that cooperates with casing wall, and piston has the inlet hole of several up/down perforations, and the nitrile rubber valve block of being exerted pressure by helical spring is stamped in its upper-end surface; The head valve hole constitutes one-way valve structures by nitrile rubber seal ring and elastic block piece, because nitrile rubber material resistance to high temperature and wear-resisting property are lower, working life is short, and air pump operation and maintenance cost are higher.

Summary of the invention:

The purpose of this utility model provides a kind of pump inner seal ring resistance to high temperature and wear-resisting property is all higher, the automobile micro air pump of long service life.

A kind of automobile micro air pump of the utility model is made up of the pump housing and micro motor, and pump housing cylinder barrel inner carrier is equipped with the piston packing that cooperates with casing wall, and piston has the inlet hole of several up/down perforations, and the rubber valve plate of being exerted pressure by helical spring is stamped in its upper-end surface; Be equipped with by valve sealing circle and elastic spring and constitute one-way valve at head valve hole place, it is characterized in that described piston packing and valve sealing circle made by the fluorine rubber material.

The valve block of above-mentioned piston upper-end surface is made by silicone rubber material.

The natural shape plan view of above-mentioned piston packing is frustoconic shape.

Being shaped as of above-mentioned valve sealing circle: the inner ring edge flat gasket shape is shaped on protruding circle upwards, and this protruding circle top constitutes the sealing surface with elastic spring.

The utility model changes piston packing and valve sealing circle by the fluorine rubber material to be made, the valve block of piston upper-end surface changes by silicone rubber material to be made, because fluorine rubber material and silicone rubber material all have higher resistance to high temperature and wear-resisting property, at high temperature be difficult for taking place permanent set, can obviously prolong working life, and then prolonged air pump working life, reduced air pump operation and maintenance cost.

Description of drawings:

Fig. 1 is the structural representation of air pump.

Fig. 2 is a cylinder cap parts sectional view among Fig. 1.

Fig. 3 is Fig. 2 I place partial enlarged drawing.

Fig. 4 is a linkage component structural representation among Fig. 1.

Fig. 5 is Fig. 4 D place partial enlarged drawing.

Embodiment:

With reference to accompanying drawing, drive motor 6 is conventional micro motor, and its rotating shaft is stretched into the pump case bottom and fixedlyed connected with eccentric wheel.Piston rod 5 lower ends are connected with eccentric wheel is eccentric, make the rotation of machine shaft by connecting rod 5 piston 4 be pumped.Cylinder barrel 3 is closely fixing with the cylinder head 2 of air pump head 1, and piston 4 has the inlet hole of several up/down perforations, and be stamped by being enclosed within the valve block 8 that bolt helical spring 9 is exerted pressure its upper-end surface, and this valve block is made by silicone rubber; The natural shape plan view of being made piston packing 7 by the fluorine rubber that contains teflon is frustoconic shape, be packed on the piston by briquetting, in piston is packed cylinder barrel 3 into after, its shape plan view is cylindrical, thereby has the wear automatic-compensation effect, as Fig. 1, Fig. 5, shown in Figure 6.Around the pore 2.1 at cylinder cap 2 centers valve sealing circle 2.2 is housed, the sealing circle is to be made by the fluorine rubber that contains teflon, inner ring edge flat gasket shape is shaped on protruding circle upwards, protruding circle top constitute with the sealing surface of elastic spring and and elastic spring formation one-way valve, as Fig. 1, Fig. 2, shown in Figure 3.Elastic spring effect one is to prevent that when descent of piston air-flow from flowing backwards, the 2nd, have only when the air pressure in the cylinder of piston top reaches quite high pressure, and compressed gas just can be washed reed open, guarantees that air pump can export the air-flow of elevated pressures.

Claims

1, a kind of automobile micro air pump is made up of the pump housing and micro motor, and pump housing cylinder barrel inner carrier is equipped with the piston packing that cooperates with casing wall, and piston has the inlet hole of several up/down perforations, and the rubber valve plate of being exerted pressure by helical spring is stamped in its upper-end surface; Be equipped with by valve sealing circle and elastic spring and constitute one-way valve at head valve hole place, it is characterized in that described piston packing and valve sealing circle made by the fluorine rubber material.

2, according to the described automobile micro air pump of claim 1, it is characterized in that the valve block of piston upper-end surface is made by silicone rubber material.

3,, it is characterized in that the natural shape plan view of piston packing is frustoconic shape according to the described automobile micro air pump of claim 1.

4, according to the described automobile micro air pump of claim 1, it is characterized in that being shaped as of valve sealing circle: the inner ring edge flat gasket shape is shaped on protruding circle upwards, and this protruding circle top constitutes the sealing surface with elastic spring.