CN201401831Y - A New Gas Safety Valve - Google Patents

Abstract

The utility model discloses a novel gas safety valve, which comprises a valve body, wherein an air inlet and an air outlet are arranged on the valve body, a gas channel is arranged in the valve body, a valve core capable of adjusting the gas flow is arranged in the gas channel, and a rotating shaft for controlling the action of the valve core is arranged on the valve body; a thermocouple electromagnetic valve capable of cutting off a gas channel is arranged between the valve core and the gas outlet, and an initial opening device capable of opening the valve of the electromagnetic valve is also arranged on the valve body; the upper end of the axial channel is provided with a flow adjusting screw capable of controlling the air input of the lateral channel, and the rotating shaft is provided with a through hole for adjusting the flow adjusting screw. The utility model has the advantages of simple structure, small volume and low production cost.

Description

A New Gas Safety Valve

【Technical field】

The utility model relates to a novel gas safety valve.

【Background technique】

The gas safety valve is mainly used in gas kitchen utensils, which plays the role of connecting gas and ignition. At the same time, it can adjust the flow of gas according to actual needs, thereby adjusting the size of the firepower. Moreover, when the flame is turned off, the valve of the thermocouple solenoid valve It will be automatically closed to prevent gas leakage and avoid safety accidents. The design of the gas safety valve in the prior art is unreasonable, the volume is large, the structure of the valve core is very complicated, the manufacturing cost is high, and the installation is inconvenient. The utility model is developed under such background technology.

【Content of utility model】

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide the whole society with a new gas safety valve with small volume, convenient installation and low production cost.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A new type of gas safety valve, including a valve body, on which an air inlet and an air outlet are arranged, and a gas passage that can be connected to the air inlet and the air outlet is arranged in the valve body, and a movable The spool to adjust the gas flow is installed on the valve body to control the movement of the spool; a thermocouple solenoid valve that can cut off the gas channel is installed between the spool and the gas outlet, and a solenoid valve that can be opened is installed on the valve body. The initial opening device of the valve is characterized in that the lower part of the valve body is equipped with a lower valve cover, and the lower valve cover is provided with a cavity that can connect the gas channel between the valve core and the valve, and the valve core shaft There is an axial passage connected to the cavity upwards, and a side passage is provided on the side of the spool that can communicate with the air inlet when it rotates, and the side passage is connected to the axial passage; the upper end of the axial passage is equipped with a controllable A flow adjustment screw for the intake air volume of the side channel, and a through hole for adjusting the flow adjustment screw is provided on the rotating shaft.

A new type of gas safety valve as described above is characterized in that the initial opening device includes a pressure block that can move up and down with the rotating shaft, and a push rod is movably connected to the bottom of the pressure block, and the lower end of the push rod can extend into the In the mold cavity, there is a shift fork that can be pressed and rotated by the push rod in the die cavity, and a fork head that can push the valve open is arranged on the shift fork; a push rod reset spring is arranged in the valve body, and the push rod wears Set with sealing ring.

A new type of gas safety valve as described above is characterized in that a rotating shaft return spring is provided between the rotating shaft and the valve core, a shifting block is provided on the rotating shaft, and a shifting block is provided on the valve core when the rotating shaft is pressed down. snapped into the card slot.

A new type of gas safety valve as described above is characterized in that the pressure block is provided with a through hole for the upper end of the push rod to pass through, and the push rod below the through hole is provided with a limit piece; An installation cavity is provided, and the push rod return spring is arranged in the installation cavity.

A novel gas safety valve as described above is characterized in that the valve body is also provided with an ignition device that can be activated by a briquetting block.

The above-mentioned lower valve cover is installed on the valve body through screws, and a sealing ring is arranged between the lower valve cover and the valve body.

The positive effects produced by the utility model are:

By setting the lower bonnet on the lower part of the valve body, and on the lower bonnet, a cavity that can connect the gas passage between the valve core and the valve of the solenoid valve, and on the valve core, an axial channel that connects the cavity, On the side of the spool, there is a side channel connected to the axial channel. The side channel communicates with the air inlet of the valve body. The upper end of the axial channel is equipped with a flow adjustment screw that can control the air intake of the side channel. There are through holes for adjusting the flow adjustment screw. The gas supply is reasonable and the gas adjustment is convenient, which solves the complex structure of the valve core in the prior art, and has the advantages of small volume, low manufacturing cost and convenient installation.

【Description of drawings】

Below in conjunction with accompanying drawing and embodiment of the present utility model, further describe in detail:

Fig. 1 is the explosion schematic diagram of the utility model;

Fig. 2 is the three-dimensional structural representation of the utility model;

Fig. 3 is the top view of Fig. 2;

Fig. 4 is the A-A direction sectional schematic diagram of Fig. 3;

Fig. 5 is the B-B direction sectional schematic diagram of Fig. 3;

Fig. 6 is a schematic cross-sectional view of C-C in Fig. 3;

FIG. 7 is a schematic cross-sectional view along the line D-D of FIG. 3 .

【Detailed ways】

As shown in Figures 1 to 7, a new type of gas safety valve includes a valve body 1, on which an air inlet 101 and an air outlet 102 are provided, and a gas passage is provided in the valve body 1, and a gas passage is provided on the valve body 1. A spool 2 that can adjust the gas flow is installed in the channel, and a rotating shaft 3 that controls the movement of the spool is installed on the valve body 1; a thermocouple solenoid valve 4 that can cut off the gas channel is installed between the spool 2 and the gas outlet 102, The valve body 1 is also equipped with a valve 401 that can open the electromagnetic valve to connect the initial opening device 5 of the gas passage between the valve core and the gas outlet. Connect the cavity 601 of the gas channel between the valve core 2 and the valve 401; the lower valve cover 6 is installed on the valve body 1 through screws, and a sealing ring 17 is arranged between the lower valve cover 6 and the valve body 1; the valve core 2 shaft An axial channel 202 connecting the cavity 601 is provided upwards, and the side of the valve core 2 is provided with a lateral channel 203 which can communicate with the air inlet 101 when it rotates, and the lateral channel is connected to the axial channel; the axial channel The upper end of the 202 is installed with a flow regulating screw 13 that can control the air intake of the side channel 203 , and the rotating shaft 3 is provided with a through hole 303 for regulating the flow regulating screw 13 .

The initial opening device 5 includes a briquetting block 7 that can move up and down with the rotating shaft 3. A push rod 8 is movably connected to the bottom of the briquetting block. The push rod 8 presses and turns the shift fork 9, and the shift fork 9 is provided with a fork 901 that can back open the valve 401; on the push rod 8, there is a sealing ring 11 for sealing connection with the valve body 1; on the briquetting block 7 There is a through hole 701 for the upper end of the push rod 8 to pass through, and the push rod 8 below the through hole 701 is provided with a limit plate 12; a mounting cavity 103 is provided in the valve body 1, and a mounting cavity 103 is provided in the mounting cavity 103 Push rod return spring 10.

The rotating shaft 3 is installed on the valve body through a gland 15, and its upper end passes through the gland 15. A rotating shaft reset spring 14 for resetting the rotating shaft 3 is provided between the gland 15 and the valve core 2, and a dial 301 is provided on the rotating shaft 3. , The spool 2 is provided with a slot 201 for the shifting block 301 to snap into. The above-mentioned pressing block 7 is installed on the rotating shaft 3 above the gland 15 .

In the present utility model, the valve body 1 is further provided with an ignition device 16 which can be activated by the pressing block 7 .

The control principle of the utility model is: press down the pressing block 7, the shifting block 301 of the rotating shaft 3 is inserted into the slot 201 of the valve core 2, and the rotating shaft 3 drives the valve core 2 to rotate, so that the gas is passed from the air inlet 101 to the valve The side channel 203 of the core 2 controls the gas flow rate from the air inlet 101 into the valve body 1 by rotating the angle of the valve core 2 and adjusting the flow adjustment screw 13, and the gas enters the cavity 601 after adjustment; the briquetting block 7 At the same time, the linear downward pressure movement acts on the push rod 8. Since the limit plate 12 is provided, the push rod 8 moves downward to make the shift fork 9 rotate, and the fork 901 of the shift fork 9 pushes the valve 401, thereby realizing gas The initial opening of the channel leads to the gas outlet 102; the downward movement of the briquetting block 7 also activates the ignition device 16, thereby realizing ignition. After the flame is turned off, the valve 401 closes the gas channel under the action of the spring because the thermocouple electromagnetic valve has no effect.

Claims (6)

1. A new type of gas safety valve, including a valve body (1), on which an air inlet (101) and an air outlet (102) are provided, and an air inlet that can be connected and the gas channel of the gas outlet, a spool (2) that can adjust the gas flow is installed in the gas channel, and a rotating shaft (3) that controls the action of the spool is installed on the valve body; between the spool (2) and the gas outlet ( 102) is provided with a thermocouple electromagnetic valve (4) that can cut off the gas passage, and an initial opening device (5) that can open the valve (401) of the electromagnetic valve is also installed on the valve body (1), and it is characterized in that The lower part of the valve body (1) is equipped with a lower valve cover (6), and the lower valve cover is provided with a cavity (601) that can connect the gas channel between the valve core (2) and the valve (401). The spool (2) is axially provided with an axial channel (202) connected to the cavity (601), and the side of the spool (2) is provided with a lateral channel that can communicate with the air inlet (101) when it rotates (203), the side channel is connected to the axial channel; the upper end of the axial channel (202) is equipped with a flow adjustment screw (13) that can control the air intake of the side channel (203), and the shaft (3) is provided with There is a through hole (303) for adjusting the flow adjustment screw (13). 2. A new type of gas safety valve according to claim 1, characterized in that the initial opening device (5) includes a pressing block (7) that can move up and down with the rotating shaft (3), and the lower part of the pressing block is flexibly connected There is a push rod (8), the lower end of the push rod (8) can extend into the cavity (601), and the cavity (601) is provided with a shift fork (9) that can be rotated by the push rod (8) , the shift fork (9) is provided with a fork (901) that can back open the valve (401); the valve body (1) is provided with a push rod return spring (10), and the push rod (8) is worn on the Covered with sealing ring (11). 3. A new type of gas safety valve according to claim 2, characterized in that a shaft return spring (14) is provided between the shaft (3) and the valve core (2), and a spring (14) is provided on the shaft (3). The dial (301), the spool (2) is provided with a draw-in groove (201) for the dial (301) to snap in when the rotating shaft is pressed down. 4. A new gas safety valve according to claim 3, characterized in that the press block (7) is provided with a through hole (701) for the upper end of the push rod (8) to pass through, and the through hole (701 ) is provided with a limit piece (12) on the push rod (8) below; the valve body (1) is provided with a mounting cavity (103), and the push rod return spring (10) is located in the mounting cavity (103). 5. A new type of gas safety valve according to any one of claims 2 to 4, characterized in that the valve body (1) is also provided with an ignition device (16) that can be activated by the pressure block (7) ). 6. A new gas safety valve according to claim 1, characterized in that the lower valve cover (6) is installed on the valve body (1) by screws, and the lower valve cover (6) and the valve body (1) ) is provided with sealing ring (17).

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