CN2512958Y

CN2512958Y - Time closing safety gas valve

Info

Publication number: CN2512958Y
Application number: CN 01272362
Authority: CN
Inventors: 李清桂
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-25
Filing date: 2001-12-25
Publication date: 2002-09-25
Anticipated expiration: 2011-12-25

Abstract

The utility model relates to a time closing safety gas valve, which comprises a time gear cavity body, a valve switch implementing mechanism and a valve cavity body, wherein, the time gear cavity body has a time rotary button, a power output shaft, a clockwork spring, a transmission gear, a transmission cam and a delaying gear mechanism. The transmission gear is meshed with the delaying gear mechanism, and the transmission cam is connected with the pushing rod of the valve switch implementing mechanism. The valve switch implementing mechanism is fixedly positioned in the valve cavity body. The utility model has the advantages of a simple structure and convenient use, which is safe and reliable.

Description

Timing closed safe gas valve

The utility model relates to a kind of civil gas stoves inlet early gate, particularly a kind of opening-closing timing control device of civil gas stoves inlet early gate.

In the present prior art, civil gas stoves inlet early gate is stopcock or ball valve, needs the handle of turn stopcock manually or ball valve during switch, and this gas valve can not realize after the unlatching that timing automatic closes.

As everyone knows, promoting the use of of combustion gas, it has brought cleaning with simultaneously easily for people's life, brought hidden danger also for people's lives and properties, heat up water and cook, people are repeatedly doing every day, use careless slightly boiling water knock down the flame, make combustion gas rush down leakage in a large number, pot for cooking rice is burnt the end or is caused fire, causes unexpected loss for people's lives and properties.

Task of the present utility model provide a kind of simple in structure, cost is low, timing closed safe gas valve safe in utilization can arbitrarily be set (range in) random time section gas valve and close automatically during use.

Technology contents of the present utility model is:

A kind of timing closed safe gas valve is characterized in that described gas valve is the gas valve that a kind of timing is closed, it by the timing gear cavity, close gate switch actuator and valve chamber is formed.

Wherein the timing gear cavity is made up of timing knob, pto, clockwork spring, driving gear, driving cam and time-delay gear mechanism, above-mentioned driving gear engagement time-delay gear mechanism, driving cam connects with the push rod of valve switch actuator, and valve switch actuator is fixed in the valve chamber.

The utility model preferred embodiment accompanying drawings is as follows:

Fig. 1 is the utility model overall structure schematic representation.

Fig. 2 is the utility model schematic top plan view.

Shown in Figure 1, above-mentioned timing gear cavity (2) is by timing knob (5), pto (6), clockwork spring (4), driving gear (7), driving cam (8), the time-delay gear mechanism is formed, above-mentioned valve switch actuator is by push rod (13), Returnning spring (12), interior valve gap (10), fill up closely (11), spring washer (9) is formed, push rod (13) wherein, be positioned at described valve chamber (1) center, one end is connected with interior valve gap (10), closely connected more airtight pad (11) on the valve gap (10) in this, and Returnning spring (12) is placed on the push rod (10), between among the spring washer (9), described driving cam (8) links with push rod (13).

Shown in Figure 2, above-mentioned valve chamber (11) is gone up by having timing gear cavity (2), timing gear cavity (2) upper surface that regularly dial (21) is arranged, and regularly dial (21) is provided with regularly knob (5).

When starting valve, regularly knob is threaded on the required timing scale position, and push rod is backed down by driving cam, interior valve gap and the valve port affixed with push rod break away from, this moment, gas valve was in opening state, and meanwhile, clockwork spring is released energy through driving gear engagement time-delay gear mechanism by accumulation of energy.After regularly knob resets, the driving cam synchronous with the timing knob resets simultaneously, the push rod that backs down is resetted under the effect of Returnning spring, when gas valve is got back to closed position, push rod and driving cam keep small amount of clearance, closed fully with valve port under action of reset spring with the assurance valve gap, and, guarantee the tightness of valve by the distortion that the rubber pad that internal valve covers produces when contacting with valve port.

Claims

1, a kind of timing closed safe gas valve is characterized in that described gas valve is a kind of gas valve that the back is regularly closed of opening, and it is made up of timing gear cavity, valve switch actuator and valve chamber; Wherein the timing gear cavity is made up of timing knob, pto, clockwork spring, driving gear, driving cam and time-delay gear mechanism, described driving gear engagement time-delay gear mechanism, described driving cam connects with the push rod of valve switch actuator, and valve switch actuator is fixed in the valve chamber.

2, timing closed safe gas valve according to claim 1, it is characterized in that described valve switch actuator is made up of push rod, Returnning spring, interior valve gap, airtight pad and spring washer, wherein Returnning spring is placed on the push rod in the middle of two spring washers, one end is connected with interior valve gap, and this internal valve covers closely connected airtight pad again.