CN87207758U

CN87207758U - New type of locking ring of pressure-cooker

Info

Publication number: CN87207758U
Application number: CN 87207758
Authority: CN
Inventors: 王芝英
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-05-11
Filing date: 1987-05-11
Publication date: 1988-04-27

Abstract

The utility model relates to a locking ring of a pressure-cooker, being a combined structure composed of a rubber ring and a metal cup ring. The V-shaped groove of the rubber ring is embedded with the cup ring made of a metal wire with a certain diameter. An air passage is provided between the cup ring and the rubber ring. Such structure can make a good original locking state, and simultaneously guarantee the reliable lock when the inner pressure of the cooker is increased. The utility model can normally work even when the rubber is aged to some degree, and compared with the currently used locking rings, the service life can be extended 4-5 times under the same condition.

Description

New type of locking ring of pressure-cooker

The utility model belongs to cooking apparatus in the small stores,

The utility model is a kind of sealing device of pressure cooker for kitchen use, used sealing device all is that a kind of cross section is the rubber ring of V-arrangement (or being ingot-shaped) in the pressure cooker now, its major defect was to use after a period of time, can not guarantee reliable sealing owing to the ageing of rubber hardening, its reason is that the shape of sealing ring behind the ageing of rubber becomes approximate ∏ shape by the V-arrangement cross section of former fork-like farm tool used in ancient China, it can not make and fits tightly between sealing ring and lid and the pot edge and cause a kind of initial sealing state when getting on installing to pot, so in heating process, can not well further sealing ring be pressed on the sealing strip of pot and lid by pot inner pressure, thereby make in the pot and can not cause due pressure, but generation gas leak phenomenon, also just can not bring into play the due effect of pressure cooker, generally be to change a new sealing ring in this case

Sealing ring described in the utility model, be the combining structure of an a kind of rubber ring and a metal packing, wherein the shape of rubber ring with existing used basic the same also can be just the same, packing is the split ring of a kind of diameter of making of elastic metallic yarn greater than the rubber ring external diameter, under closure state, can embed in the V-shaped groove of rubber ring, architectural feature of the present utility model is after the V-type groove of packing embedding rubber ring the V-shaped groove opening of rubber ring to be opened, keep its V-arrangement state, in the V-shaped groove of packing and rubber ring, also maintain many airways between the table simultaneously, so that gas enters V-shaped groove inside, can cause good initial sealing state like this, can guarantee again when pot inner pressure raises simultaneously, even if further rubber ring is pressed on and guarantees reliable sealing effect on the sealing strip of lid and pot the utility model also can reliably working behind ageing of rubber thereby there is enough gas to enter V-shaped groove inside, conveniently do not use the person.

Fig. 1 be one of organization plan of the present utility model, it be V-shaped groove at the sealing ring (1) that uses now be embedded in packing (2), a packing (2) with many radial slots be the split ring that curves as the spring steel wire of 2.5-3 millimeter by diameter, the one or both sides of packing every 3-8 millimeter place have a 2-5 mm wide, deeply be 0.5 millimeter radial slot, get final product in the limit groove of the pot cover of earlier rubber ring being packed into when using, again packing embedding V-type groove

Among Fig. 2 shown in (3) be packing described in Fig. 1 (2) another kind of version, it also be one by diameter be the spring steel wire of 2.5-3 millimeter curve, different be less than the 0.8-1 of other millimeter at the diameter that a long thin neck for the 2-5 millimeter is arranged every 3-8 millimeter place

Fig. 3 be among another organization plan of the present utility model, the figure (4) be the essentially identical rubber ring of a kind of and present rubber ring that makes, its do not exist together just two wall upper edge circumference of the inner surface of V-type groove every the 3-8 millimeter have one long for the 3-5 millimeters deep is 0.5 millimeter a groove, to be embedded in one at the V-type groove simultaneously be that packing (5), using method and the operation principle of 2-3 millimeter spring steel wire system is the same with scheme shown in Figure 1 by diameter

Through reality use high pressure seal described in the utility model can be prolonged the service life of rubber ring 3-5 doubly, adopt the consumption of the saving rubber that the utility model can be a large amount of, also conveniently do not use greatly the person.

Claims

1, high-pressure cooker sealing ring, be a kind of V-arrangement (or ingot-shaped) cross section smooth surface rubber ring, it is characterized in that combining structure of setting-in in the V-shaped groove of V-arrangement rubber ring with packing of radical elasticity,

Can be in the smooth groove in the V-arrangement cross section of rubber ring one of setting-in by diameter be the split ring that curves of the spring steel wire of 2.5-3 millimeter, the one or both sides of ring along garden Zhou Fangxiang every 3-8 millimeter place have one wide for the 2-5 millimeter, be 0.5 millimeter air channel deeply

Can be in the smooth groove in the V-arrangement cross section of rubber ring, one of setting-in is the spring steel wire of 2.5-3 millimeter, the split ring of making, had one to be that 2-5 millimeter, recess diameter are the 0.8-1 millimeter less than other parts with what ventilative thin neck, its length along circumference every 3-8 millimeter place by diameter

The surface that also can be V-shaped groove be not smooth but in the surperficial upper edge of V-shaped groove circumferentially every the 3-8 millimeter have a length be the 3-5 millimeter, deeply be 0.5 millimeter groove, the radical elasticity packing of setting-in is by the split ring of the spring steel wire system of 2-3 millimeter, no longer opening also no longer includes little thin neck on steel wire in V-shaped groove.