CN2037015U

CN2037015U - Automatic closing gas check

Info

Publication number: CN2037015U
Application number: CN 88210372
Authority: CN
Inventors: 李振宇
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-03-31
Filing date: 1988-03-31
Publication date: 1989-05-03

Abstract

The utility model discloses an automatic closing gas valve of a combustion gas burner, mainly comprising energy-stored springs, a valve plug driven by the energy-stored springs, and an electric magnet positioned under a valve base, and the moving plate of the electric magnet is connected with an auto-locking plate. The utility model has the advantages of simple structure, and convenient operation. The automatic closing gas valve is proportionally used with a flame inductor on the combustion gas burner such as coal gas, forming a safety device which can automatic close the gas valve when the flam of the combustion gas burner is accidentally extinguished.

Description

Automatic closing gas check

The utility model relates to a kind of air valve that can close automatically that is used with flame sensor.Be specially adapted to the device of the automatic-closing valve of gas-fired boilers such as coal gas, liquid gas and biogas.

The valve of existing gas-fired boiler, when because of wind fire being blown out or is overflowed after boiled when fire being extinguished because of the water on the stove and accessory, meal etc., can not in time close gas check valve and cause running, the generation of gas leakage accident, even cause that poisonings, fire etc. are personal, the loss of property.

The purpose of this utility model is will provide a kind of to be used with flame sensor on burner stove and accessorys such as coal gas the valving that can close automatically when the flame accident is extinguished.

The purpose of this utility model realizes as follows: the energy storage spring that is connected with valve plug is housed in the spring eye of valve seat bottom.Rotation valve plug during use is all opened air valve from locking plate and is just blocked position-limitting pin and valve plug is pinned automatically, and it can not be turned round, and is used for the rotating energy storage spring of actuating valve plug this moment just to be tightened.When the flame accident of gas-fired boiler is extinguished, send out control signal by flame sensor, making has electric current to pass through electromagnet just with its moving plate adhesive in the magnet spool, make gliding of being connected with this moving plate from locking plate, bleeder position-limitting pin beyond the Great Wall, valve plug just turns round rapidly under the driving of energy storage spring and air valve is closed as the utility model and flame sensor are used, just can constitute the device that can close gas check valve when a kind of flame when gas-fired boiler is extinguished automatically.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is the part sectioned view of the utility model internal structure.

Fig. 2 is the part sectioned view of the utility model Figure 1A to internal structure.

Fig. 3 is the bell spare figure of the utility model valve plug lower gasket.

Fig. 4 is the schematic representation that valve seat (1) is connected with valve plug (2), energy storage spring (3) and pad (4).

Fig. 5 is that the A-A of Fig. 4 is to sectional drawing.

Fig. 6 is the structural drawing from locking plate.

Fig. 7 is the structural drawing of the front half part of magnet moving plate (1).

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, support (12) go up fixing with screw (23) have before, the valve seat (1) of latter two valve nozzle (13), an energy storage spring (3) that is connected with valve plug (2) by pad (4) is housed in the spring eye (6) of this valve seat bottom, this spring is a torque spring, so that valve plug (2) can be turned round automatically, pad (4) is enclosed within by the elongated hole on it (26) on the microscler lug boss of valve plug (2) bottom and is connected with valve plug (2), the upper end dop of energy storage spring (3), be stuck in the draw-in groove (27) of spring eye (6) inner side surface, the lower end dop is inserted in the aperture (25) on the pad (4), spring pad (16) fills up below pad (4), and fixing with spiral shell nurse (5).

For valve plug (2) is rotated in 90 ° of scopes, and can on the position of all opening, stop, can unlikelyly when air valve is opened close automatically, cylindrical position-limitting pin (a 7) plug pin that can rotate with valve plug (2) is arranged in the circular hole of its outer upper, corresponding limit sliding chutes (8) is being arranged on the valve seat (1) and having one to can slide up and down in locking plate (9) is contained in bar shaped chute on the valve seat (1) on the suitable position, valve seat (1) outside, do not drop out in order to make from locking plate (9), be stamped a bluff piece (14) in bar shaped chute outside, and fixing with screw (15) and valve seat (1).During rotation valve plug (2), position-limitting pin (7) just slides thereupon, when pin is pressed in when go up on the slope (30) of locking plate (9) upper end, just glide from locking plate (9), when position-limitting pin slips over behind locking plate (9), just under the effect of spring (22), rise and get back to original position from locking plate,, it can not be turned round the position-limitting pin bumping post.

Below valve seat (1), there is an electromagnet (10) to be fixed on the base plate of support (12), the curved tongue (29) of electromagnet moving plate (11) front end is inserted in the oblong aperture (28) of locking plate (9) lower end, and moving plate (11) driving of magnet (10) is slided from locking plate (9).The base plate (21) of electromagnet (10) is connected with moving plate (11) by spring (22).

It is the gas-pipe line that is enclosed within on the valve nozzle (13) with screw (19) with valve plug (2) fixing (17) that executing on the valve plug (2) turned round (18), (24) be shell, (20) be the gas port of air valve, the valve plug in the present embodiment (2) is in the position of all opening.

Claims

1, a kind of air valve that can close automatically, by common valve plug (2), valve seat (1), pad (4) and spiral shell nurse (5) are formed, feature of the present utility model is to pass valve seat (1) by the valve plug (2) that energy storage spring (3) drives, pad (4) is also fixed it with spiral shell nurse (5), in the circular hole (6) of valve seat (1) bottom, an energy storage spring is arranged, its upper end is connected on the valve seat (1), the lower end is connected valve plug (2) and goes up or be connected on the pad (4) that is connected with valve plug (2), in the upper end of valve plug (2) position-limitting pin (7) is arranged, corresponding with it limit sliding chutes (8) is arranged at the top of valve seat (1), and a straight runner or straight circular hole are arranged on the appropriate location of valve seat (1), in this chute or circular hole, have one driven by electromagnet (10) and valve plug (2) can be stopped from locking plate (9) or self-locking pin.

2, the air valve that can close automatically according to claim 1 is characterized in that being connected with an end of the moving plate (11) of electromagnet (10) from the lower end of locking plate (9) or self-locking pin.

3, the air valve that can close automatically according to claim 1 and 2 is characterized in that valve seat (1) and following electromagnet (10) thereof all are fixed on the support (12).