CN2223388Y

CN2223388Y - Gas Timing Controller

Info

Publication number: CN2223388Y
Application number: CN 95213519
Authority: CN
Inventors: 张寅初
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-21
Filing date: 1995-06-21
Publication date: 1996-03-27
Anticipated expiration: 2005-06-21

Abstract

The utility model relates to a timing control device used on a gas cooker. The device is provided with a piston front cavity and a piston rear cavity in a valve body, and is respectively communicated with a gas inlet pipe joint and a gas outlet pipe joint. The front cavity and the rear cavity of the piston are provided with pistons, the front of the piston is provided with a spring, the piston is provided with a sealing ring, a connecting rod of the piston is propped against a push rod in a push rod channel through an isolation diaphragm, a mechanical timer is arranged beside the opening of the push rod channel, and a groove of a cam of the mechanical timer is meshed with the exposed end of the push rod outside the push rod channel. The cam of the mechanical timer controls the opening and closing of the piston in the valve body through the push rod, so that the opening and closing of the fuel gas are controlled at fixed time. The device is convenient to operate, safe and energy-saving.

Description

The combustion gas timing controller

The utility model relates to a kind of timing control apparatus that is used on the gas range.

Along with the development of the health care hygiene industry of China, the population of China also is tending towards aging gradually.But be applicable to the elderly's the more and more incompatible social demand of daily life product.In kitchen fitting, meet the gas range of life of elderly person needs, remain a blank.The elderly is strong forgetful, with gas range heat up water, cook, fricassee and the phenomenon of dryouting at the bottom of steamer, the combustion water clock is of common occurrence, therefore bring some unnecessary loss to family.So demand from the present market is sought after a kind of gas range that timing controller is housed.

The purpose of this utility model provides a kind of combustion gas timing controller.This timer can avoid accident to take place by time automatic self-closing gas regularly.This timer has advantages such as easy to use, safe, energy-conservation.

Main points of the present utility model are, this combustion gas timing controller is to adopt valve body and the mechanical timer that combustion gas inlet/outlet pipe joint is housed, and the cam of this mechanical timer is by the switch of the piston in the push rod control valve body, thus the open and close of timing controlled combustion gas.

Be elaborated below in conjunction with accompanying drawing

Fig. 1 is the plan view of combustion gas timing controller

Fig. 2 is the plan view of combustion gas timing controller

Fig. 3 is the hollow type piston

Fig. 4 is the A-A sectional view of Fig. 3

Fig. 5 is the wire nail cylinder-piston

Fig. 6 is the B-B sectional view of Fig. 5

Fig. 7 is the schematic representation of push rod and cam-engaged

Fig. 8 backs down the schematic representation of push rod for cam

As Fig. 1, shown in Figure 2, this combustion gas timing controller, include valve body 14, mechanical timer 9, this mechanical timer 9 is by handle 19, mechanical transmission mechanism, cam 8 is formed, in this valve body 14, be provided with the piston ante-chamber 15 and piston back cavity 4 that communicate each other, described piston ante-chamber 15 is connected fuel gas inlet pipe joint 1, described piston back cavity 4 is connected gas outlet pipe joint 7, in described piston ante-chamber 15 and piston back cavity 4, be provided with piston, this piston is made up of body 3 and connecting rod 12, this body 3 is positioned at described piston ante-chamber 15, card is established spring 2 between the inwall of this body 3 described valve body 14 relative with these body 3 front ends, the seal ring 10 that is used to seal described piston ante-chamber 15 and piston back cavity 4 interfaces is housed in the rear end of this body 3, described connecting rod 12 is positioned at described piston back cavity 4, described mechanical timer 9 is installed in by the push rod passway on the described valve body 14, this push rod passage and described piston back cavity 4 join, and by isolation diaphragm 5 seal isolation, in described push rod passage, be provided with push rod 6, this push rod 6 outside described push rod passage exposed end and the groove of the cam 8 of described mechanical timer 9 be complementary, and be meshed with the groove of this cam 8, its other end pushes up mutually by the tail end of described isolation diaphragm 5 with the connecting rod 12 of described piston.

The mechanical timer that the utility model adopted is a known products, as the mechanical timer of using on the electric fan, this mechanical timer includes handle, mechanical transmission mechanism, cam, fixture block, has the contact switch of spring sheet, the utility model only adopts the main body of mechanical timer, comprise: handle, mechanical transmission mechanism, cam, and replace the switch of fixture block with control piston with push rod.

Fig. 7, Fig. 8 are cam 8 and push rod 6 work schematic representation, when set time, but clockwise direction turns handle 19, by mechanical transmission mechanism, drive cam 8 to counterclockwise rotating, promptly forward position shown in Figure 8 to from position shown in Figure 7, thereby push rod 6 is thrown off from the groove of cam 8, promote push rod 6 and move, and piston is also moved, open gas channel.When set time then, cam 8 is got back to position shown in Figure 7 again, gas channel is closed in push rod 6 playback, and make the piston playback.

Piston can adopt following three kinds of forms according to various distinct device situation designs.

As shown in Figure 1, the body 3 of described piston is a cylindrical body, and has some longitudinal flutings on the cylndrical surface.When the cam 8 of mechanical timer 9 backed down push rod 6 piston is moved, combustion gas can flow to the piston back cavity 4 from piston ante-chamber 15 by the longitudinal fluting on the body 3.

As shown in Figure 3, Figure 4, the body 3 of described piston is the ladder cylindrical body, opens center hole from the position of the center line of these body 3 front ends, and some side through hole are opened to the cylndrical surface again in the rear portion of leading to this body 3.When the cam 8 of mechanical timer 9 backed down push rod 6 piston is moved, combustion gas can flow to the piston back cavity 4 from piston ante-chamber 15 by center hole on the body 3 and side through hole.

As Fig. 5, shown in Figure 6, the body 3 of described piston is the wire nail cylinder.When the cam 8 of mechanical timer 9 backed down push rod 6 piston is moved, the gap flow to the piston back cavity 4 from piston ante-chamber 15 around the body 3 that combustion gas can be by the wire nail cylindricality.

As shown in Figure 1 and Figure 2, this device joins the fuel gas inlet pipe joint 1 and the suction tude of kitchen range of this device in use, and gas outlet pipe joint 7 joins with the suction tude of kitchen range ignition switch.When set time, clockwise direction turns handle 19, and the cam 8 of mechanical timer 9 backs down push rod 6, makes piston left in figure open close mouth to moving.Combustion gas enters piston ante-chamber 15 by fuel gas inlet pipe joint 1,, by gas outlet pipe joint 7 combustion gas is infeeded in the pipeline of switch valve of kitchen range by entering piston back cavity 4 by the longitudinal fluting on the body 3, makes it sparking and fuel gas buring.Behind the burning certain hour, when the mechanical delay gear in the mechanical transmission mechanism of mechanical timer 9 made cam 8 revolution cause push rod 6 playback, piston was shifted piston onto among the figure right side limit position under spring 2 and gaseous-pressure.Seal ring 10 is pressed mutually with piston back cavity 4 oral areas, cuts off the circulation of gas, reaches the purpose of flame-out burn-out.

When non-set time (promptly often opening usefulness of a specified duration), then counterclockwise turn the handle 19 of mechanical timer 9, make the cam 8 of mechanical timer 9 forever back down push rod 6, make piston in figure left to moving, identical with above-mentioned principle, reach the purpose of sparking, fuel gas buring.

In the fuel gas flow process, isolation diaphragm 5 can guarantee safe operation, and gas does not leak into outside the valve.Isolation diaphragm 5 can adopt metal diaphragm or elastomer diaphragm.

The fuel gas inlet pipe joint 1 of combustion gas timing controller can adopt and the horizontal or vertical design of kitchen range table top according to the difference of kitchen range equipment.

As shown in Figure 1, for the ease of mechanical timer 9 is installed, bed course 11 is housed on valve body 14.

In sum, this device can be contained on the gas kitchen ranges, can establish according to the end user The fixed time (also setting-up time not, Chang Kaijiu with), regularly close combustion gas, keep away " doing the bottom of a pan, the combustion water clock " accident of exempting from takes place. Cooking, baked goods have had simultaneously Timing controlled, the quality of assurance boiling and barbecue, and easy to operate, safe and reliable, Energy savings.

Claims

1, a kind of combustion gas timing controller, include valve body (14), mechanical timer (9), this mechanical timer (9) is by handle (19), mechanical transmission mechanism, cam (8) is formed, it is characterized in that in this valve body (14), being provided with the piston ante-chamber (15) and piston back cavity (4) that communicate each other, described piston ante-chamber (15) is connected fuel gas inlet pipe joint (1), described piston back cavity (4) is connected gas outlet pipe joint (7), in described piston ante-chamber (15) and piston back cavity (4), be provided with piston, this piston is made up of body (3) and connecting rod (12), this body (3) is positioned at described piston ante-chamber (15), card is established spring (2) between the inwall of this body (3) described valve body (14) relative with this body (3) front end, the seal ring (10) that is used to seal described piston ante-chamber (15) and piston back cavity (4) interface is housed in the rear end of this body (3), described connecting rod (12) is positioned at described piston back cavity (4), described mechanical timer (9) is installed in by the push rod passway on the described valve body (14), this push rod passage and described piston back cavity (4) join, and by isolation diaphragm (5) seal isolation, in described push rod passage, be provided with push rod (6), this push rod (6) outside described push rod passage exposed end and the groove of the cam (8) of described mechanical timer (9) be complementary, and be meshed with the groove of this cam (8), its other end pushes up mutually by the tail end of described isolation diaphragm (5) with the connecting rod (12) of described piston.

2, combustion gas timing controller according to claim 1 is characterized in that the body (3) of described piston is a cylindrical body, and have some longitudinal flutings on the cylndrical surface.

3, combustion gas timing controller according to claim 1, the body (3) that it is characterized in that described piston is the ladder cylindrical body, open center hole from the position of the center line of this body (3) front end, some side through hole are opened to the cylndrical surface again in the rear portion of leading to this body (3).

4, combustion gas timing controller according to claim 1, the body (3) that it is characterized in that described piston is the wire nail cylinder.