CN109812839B - Automatic cut-off device for timing automatic closing and superfluid of fuel gas - Google Patents
Automatic cut-off device for timing automatic closing and superfluid of fuel gas Download PDFInfo
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- CN109812839B CN109812839B CN201711163019.8A CN201711163019A CN109812839B CN 109812839 B CN109812839 B CN 109812839B CN 201711163019 A CN201711163019 A CN 201711163019A CN 109812839 B CN109812839 B CN 109812839B
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- 239000002737 fuel gas Substances 0.000 title abstract description 11
- 238000007789 sealing Methods 0.000 claims description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 69
- 238000009434 installation Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 206010017740 Gas poisoning Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 241000699666 Mus <mouse, genus> Species 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Safety Valves (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention relates to a gas timing automatic closing and overcurrent automatic cutting-off device, belonging to the technical field of gas safety equipment. The automatic gas timing and closing device comprises a mechanical timer, a valve body and the like, and the automatic gas timing and closing device comprises a pressing component, a fine tuning group, a filter screen, a ball valve and the like. The invention has simple structure, convenient installation and double safety, greatly improves the safety performance of using the fuel gas, can effectively stop the occurrence of fuel gas accidents, has extremely strong practicability and is suitable for large-area popularization and application.
Description
Technical Field
The invention relates to a gas safety valve, and belongs to the technical field of gas safety equipment.
Background
In the use process of the fuel gas, especially the old or children often forget to turn off the fuel gas kitchen range, so that the fuel gas is always burnt, and safety accidents such as fire disaster and the like are easily caused. In addition, many times, even if the gas cooker is in a closed state, the hose from the gas steel pipe to the gas cooker section is easy to cause air leakage under the conditions of aging, damage, falling or biting by mice, and the like, and potential safety hazards such as gas poisoning exist. In order to prevent the gas source from being forgotten to be turned off, a gas timing automatic closing device can be arranged on the gas steel pipe, but if the gas timing automatic closing device is only arranged, when the gas timing automatic closing device is in a working state, namely the gas source is turned on, once the gas between the gas steel pipe and the gas cooker has a sudden leakage or a large leakage, the gas timing automatic closing device does not reach the closing time yet, the gas timing automatic closing device cannot automatically cut off the gas source, and a great potential safety hazard exists.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the gas timing automatic closing and superfluid automatic cutting-off device which has a simple and compact structure and is convenient to install, and can effectively prevent safety accidents such as gas poisoning, fire and the like, and the device can automatically close a gas valve according to the setting time so that a gas pipeline is in a normally closed safety state when a user does not use gas; in addition, even if the gas path controlled by the timing automatic closing device is in a connection state, the overflow automatic cutting device can automatically cut off the gas if the rear section of the gas steel pipe is in a sudden leakage or a large leakage, thereby having double safety effects.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the gas safety valve comprises a gas timing automatic closing device provided with a gas inlet pipe and a gas outlet pipe on a shell and an overflow automatic cutting device provided on the gas inlet pipe;
a bottom plate is arranged at the bottom of the shell;
a mechanical timer is arranged at the upper part in the shell, a mounting plate is arranged at the middle part, and a valve body is arranged at the lower part in the shell;
a cam is fixed at the lower end of a spring mandrel of the mechanical timer, and a poking piece is arranged at one side of the cam;
the valve body consists of a limiting plate connected to the connecting column through a connecting piece, a valve rod inserted in the limiting plate and provided with a limiting groove at the upper end, a valve core consisting of an outer sealing gasket and an inner sealing gasket which are fixed on the valve rod, and a safety valve spring sleeved on the valve rod, wherein the upper end and the lower end of the safety valve spring are respectively contacted with the outer sealing gasket and the limiting plate;
the mounting plate is provided with a spring baffle column, a spring fixed on the spring column, a spring sheet and a boss; the boss is provided with a valve hole and a transverse groove;
the valve rod passes through the mounting plate and extends to the upper part of the boss from the valve hole of the boss, one end of the spring is propped against the spring baffle column, the other end of the spring is clamped in the clamping groove at one end of the spring plate, the other end of the spring plate is clamped in the transverse groove of the boss, and the end of the spring plate, provided with the clamping groove, is limited between the spring and the poking plate;
the overflow automatic cutting device comprises a pressing component and a fine adjustment group which are respectively arranged at the upper end and the lower end of the air inlet pipe and communicated with the air inlet pipe respectively, an overflow ring arranged on the inner wall of the air inlet pipe, an overflow sealing sleeve sleeved on the overflow ring, a filter screen arranged at the air inlet port of the air inlet pipe, and a ball valve positioned between the overflow ring and the filter screen; the pressing component consists of a pressing rod, a second spring sleeved on the pressing rod, a sleeve and a pressing cap.
The ball valve is an aluminum ball, and the diameter of the ball valve is not smaller than that of the superfluid ring.
The air inlet port of the air inlet pipe is provided with threads, and the filter screen is fixed through a fixed spring coil arranged at the bottom end of the threads.
The mechanical timer is characterized in that a cover body is arranged above the mechanical timer, a spring mandrel of the mechanical timer is fixedly connected with the cover body, and the spring mandrel rotates along with the rotation of the cover body.
A mounting plate sealing gasket is arranged between the mounting plate and the shell, and a bottom plate sealing gasket is arranged on the bottom plate;
compared with the prior art, the invention has the following beneficial effects due to the adoption of the technical scheme: the gas valve is opened according to the set time, the gas valve is closed according to the set time by the timing switch, so that the gas pipeline is in a normally closed safe state when a user does not use gas, the gas pipe is safe and reliable, safety accidents such as fire disaster, gas poisoning and the like caused by forgetting to close the gas source or gas leakage of a pipeline after the gas is used can be effectively avoided, the overflow automatic cutting device is arranged on the gas inlet pipe, and when the rear section of the gas pipe is in emergency leakage or large leakage, the gas pipe is blocked by utilizing kinetic energy generated by instantaneous pressure change of the gas in the flowing process, so that the purpose of automatically cutting off the gas in emergency is achieved, and the safety accidents such as gas leakage and the like when the gas timing automatic cutting device is in the on state of the gas source are effectively avoided; by adopting the fine adjustment group, the air flow value of the automatic cutoff device for the superfluid can be finely adjusted according to different conditions of the gas source and the gas cooker, so that the superfluid automatic cutoff device can better exert the effects. The invention has double insurance effect, greatly improves the safety performance of using fuel gas, can effectively stop the occurrence of fuel gas accidents, has extremely strong practicability and is suitable for large-area popularization and application.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure A-A of FIG. 1;
FIG. 3 is a schematic view of the B-B structure of FIG. 2;
FIG. 4 is a front view of a dome;
FIG. 5 is a schematic view of a cam top view mechanism;
FIG. 6 is a schematic diagram of a front view of a cam;
FIG. 7 is a schematic view of the structure of the automatic overcurrent cutoff device;
in the figure: the device comprises a shell 1, an air outlet channel 2, a bottom plate 3, a bottom plate sealing gasket 4, a limiting plate 5, an outer sealing gasket 6, an inner sealing gasket 7, a valve rod 8, a limiting groove 8-1, a safety valve spring 9, a connecting piece 10, an air inlet pipe 11, a connecting column 12, a mounting plate 13, a mounting plate sealing gasket 14, a boss 15, a transverse groove 15-1, a valve hole 15-2, a cam 16, a pulling piece 16-1, a mechanical timer 17, a spring mandrel 18, a cover 19, a spring piece 20, a clamping groove 20-1, a spring column 21, a spring 22, a spring baffle 23, a pressing component 24, a sleeve 24-1, a second spring 24-3, a pressing cap 24-4, a pressing rod 24-5, an overflow sealing sleeve 25, an overflow ring 26, a fine adjustment group 27, a ball valve 28, a filter screen 29, a fixed spring coil 30 and threads 31.
Description of the embodiments
The invention is further described with reference to the accompanying drawings and specific examples:
as shown in fig. 1-2: the gas safety valve comprises a gas timing automatic closing device provided with a gas inlet pipe 11 and a gas outlet pipe 2 on a shell 1 and an overflow automatic cutting device provided on the gas inlet pipe 11;
the bottom of the shell 1 is provided with a bottom plate 3;
a mechanical timer 17 is arranged at the upper part in the shell 1, a mounting plate 13 is arranged at the middle part, and a valve body is arranged at the lower part in the shell;
a cam 16 is fixed at the lower end of a spring mandrel 18 of the mechanical timer 17, and a pulling piece 16-1 is arranged at one side of the cam 16;
the valve body consists of a limit plate 5 connected to a connecting column 12 through a connecting piece 10, a valve rod 8 inserted in the limit plate and formed by an upper end provided with a limit groove 8-1, an outer sealing gasket 6 and an inner sealing gasket 7 fixed on the valve rod, and a valve core sleeved on the valve rod 8), and safety valve springs 9 with upper and lower ends respectively contacted with the outer sealing gasket 6 and the limit plate 5;
the mounting plate 13 is provided with a spring baffle column 23, a spring 22 fixed on the spring column 21, a spring piece 20 and a boss 15; the boss 15 is provided with a valve hole 15-2 and a transverse groove 15-1;
the valve rod 8 passes through the mounting plate 13 and extends from the valve hole 15-2 of the boss 15 to the upper side of the boss 15, one end of the spring 22 is propped against the spring baffle column 23, the other end of the spring 22 is clamped in the clamping groove 20-1 at one end of the spring piece 20, the other end of the spring piece 20 is clamped in the transverse groove 15-1 of the boss 15, and the end of the spring piece 20 provided with the clamping groove 20-1 is limited between the spring 22 and the shifting piece 16-1;
the automatic overcurrent cutoff device comprises a pressing component 24 and a fine adjustment group 27 which are respectively arranged at the upper end and the lower end of the air inlet pipe 11 and respectively communicated with the air inlet pipe, an overcurrent sealing sleeve 25 which is arranged on the inner wall of the air inlet pipe 11 and sleeved on the overcurrent sealing sleeve, a filter screen 29 which is arranged at the air inlet port of the air inlet pipe 11, and a ball valve 28 which is positioned between the overcurrent sealing sleeve 26 and the filter screen 29; the pressing assembly 24 is composed of a pressing rod 24-5, a second spring 24-3 sleeved on the pressing rod, a sleeve 24-1 and a pressing cap 24-4.
The ball valve 28 is an aluminum ball, and the diameter of the ball valve 28 is not smaller than the diameter of the superfluid ring 26.
The air inlet port of the air inlet pipe 11 is provided with threads 31, and the filter screen 29 is fixed by a fixed spring coil 30 arranged at the bottom end of the threads.
A cover 19 is arranged above the mechanical timer 17, a spring spindle 18 of the mechanical timer 17 is fixedly connected with the cover 19, and the spring spindle 18 rotates along with the rotation of the cover 19.
A mounting plate sealing gasket 14 is arranged between the mounting plate 13 and the shell 1, and a bottom plate sealing gasket 4 is arranged on the bottom plate 3.
When the user does not use fuel gas, the outer sealing gasket 6 and the inner sealing gasket 7 of the valve body seal the shell 1, and the fuel gas pipeline is in a normally closed safe state. When gas is needed to be used, the cover 19 is twisted clockwise to drive the spring mandrel 18 to rotate, the mechanical timer 17 is regulated to the required time, the cam 16 at the lower end of the spring mandrel 18 presses down the valve rod 8 in the process of twisting the cover 19 to drive the spring mandrel 18 to rotate, the valve rod 8 drives the outer sealing gasket 6 and the inner sealing gasket 7 to move downwards together, and when the inner sealing gasket 7 is separated from the shell 1, a gas circuit is communicated; when the valve rod 8 moves downwards, when the limit groove 8-1 of the valve rod 8 moves to the transverse groove 15-1 of the boss 15, the spring piece 20 clamps the spring mandrel 18 under the action of elastic force, so that the valve body is prevented from resetting to close the air source. When the set time is about to return to zero, the poking plate 16-1 on the cam 16 pushes the elastic sheet 20 outwards, so that one end of the elastic sheet 20, which is positioned in the transverse groove 15-1 of the boss 15, moves outwards, the valve rod 8 is reset after being released, and the outer sealing gasket 6 and the inner sealing gasket 7 of the valve body move upwards along with the valve rod 8 to block the air path, so that the air source is cut off.
When the gas pipeline is normally free from leakage, the overflow automatic cutting device is in a normally open state, namely the ball valve is positioned at the bottom of the gas pipeline; when the timing automatic closing device is in a working state, namely the gas source is connected, once the rear section of the gas steel pipe, namely the joint of the gas steel pipe and the safety valve, is aged, damaged, and falls off or is bitten by a mouse to cause urgent leakage and large leakage of the gas, the flow rate of the gas is increased instantaneously, and the ball valve is lifted by kinetic energy generated by instantaneous pressure change of the gas in the flowing process to block the passage of the gas outlet port of the gas pipeline, so that the gas is automatically cut off urgently.
Claims (5)
1. The utility model provides a gas is automatic to close with overflow automatic device of cutting off regularly which characterized in that: comprises a gas timing automatic closing device provided with a gas inlet pipe (11) and a gas outlet pipe (2) on a shell (1) and an overflow automatic cutting device provided on the gas inlet pipe (11);
a bottom plate (3) is arranged at the bottom of the shell (1);
a mechanical timer (17) is arranged at the upper part in the shell (1), a mounting plate (13) is arranged at the middle part, and a valve body is arranged at the lower part in the shell; a cam (16) is fixed at the lower end of a spring mandrel (18) of the mechanical timer (17), and a plectrum (16-1) is arranged at one side of the cam (16);
the valve body consists of a limiting plate (5) connected to a connecting column (12) through a connecting piece (10), a valve rod (8) inserted in the limiting plate and provided with a limiting groove (8-1) at the upper end, a valve core consisting of an outer sealing gasket (6) and an inner sealing gasket (7) fixed on the valve rod, and a safety valve spring (9) sleeved on the valve rod (8) and respectively contacted with the outer sealing gasket (6) and the limiting plate (5) at the upper end and the lower end;
the mounting plate (13) is provided with a spring baffle column (23), a spring (22) fixed on the spring column (21), a spring piece (20) and a boss (15); the boss (15) is provided with a valve hole (15-2) and a transverse groove (15-1);
the valve rod (8) passes through the mounting plate (13) and extends from the valve hole (15-2) of the boss (15) to the position above the boss (15), one end of the spring (22) is propped against the spring baffle column (23), the other end of the spring is clamped in the clamping groove (20-1) at one end of the elastic piece (20), the other end of the elastic piece (20) is clamped in the transverse groove (15-1) of the boss (15), and the end of the elastic piece (20) provided with the clamping groove (20-1) is limited between the spring (22) and the poking piece (16-1);
the automatic overcurrent cutting device comprises a pressing assembly (24) and a fine adjustment assembly (27) which are respectively arranged at the upper end and the lower end of the air inlet pipe (11) and communicated with the air inlet pipe respectively, an overcurrent ring (26) arranged on the inner wall of the air inlet pipe (11), an overcurrent sealing sleeve (25) sleeved on the overcurrent ring, a filter screen (29) arranged at the air inlet port of the air inlet pipe (11) and a ball valve (28) arranged between the overcurrent ring (26) and the filter screen (29); the pressing assembly (24) is composed of a pressing rod (24-5), a second spring (24-3) sleeved on the pressing rod, a sleeve (24-1) and a pressing cap (24-4).
2. The gas timing automatic closing and superfluid automatic cutting-off device as claimed in claim 1, wherein: the ball valve (28) is an aluminum ball, and the diameter of the ball valve (28) is not smaller than the diameter of the superfluid ring (26).
3. The gas timing automatic closing and superfluid automatic cutting-off device as claimed in claim 1 or 2, characterized in that: the air inlet port of the air inlet pipe (11) is provided with threads (31), and the filter screen (29) is fixed through a fixed spring coil (30) arranged at the bottom end of the threads.
4. The gas timing automatic closing and superfluid automatic cutting-off device as claimed in claim 3, wherein: a cover body (19) is arranged above the mechanical timer (17), a spring mandrel (18) of the mechanical timer (17) is fixedly connected with the cover body (19), and the spring mandrel (18) rotates along with the rotation of the cover body (19).
5. The gas timing automatic closing and superfluid automatic cutting-off device according to any one of claims 1, 2 and 4, characterized in that: a mounting plate sealing gasket (14) is arranged between the mounting plate (13) and the shell (1), and a bottom plate sealing gasket (4) is arranged on the bottom plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711163019.8A CN109812839B (en) | 2017-11-21 | 2017-11-21 | Automatic cut-off device for timing automatic closing and superfluid of fuel gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711163019.8A CN109812839B (en) | 2017-11-21 | 2017-11-21 | Automatic cut-off device for timing automatic closing and superfluid of fuel gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109812839A CN109812839A (en) | 2019-05-28 |
| CN109812839B true CN109812839B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711163019.8A Active CN109812839B (en) | 2017-11-21 | 2017-11-21 | Automatic cut-off device for timing automatic closing and superfluid of fuel gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109812839B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2065735U (en) * | 1990-04-27 | 1990-11-14 | 王鹏翔 | Timing automatic cut-off device for burning gas |
| CN2708132Y (en) * | 2003-12-04 | 2005-07-06 | 单天月 | Multifunctional gas safety relief valve |
| CN201636337U (en) * | 2010-01-18 | 2010-11-17 | 高翔 | Intelligent control valve for gas meter |
| CN104763827A (en) * | 2015-04-15 | 2015-07-08 | 特瑞斯（北京）流体科技有限公司 | Safety shut-off valve |
| CN105299305A (en) * | 2015-10-30 | 2016-02-03 | 重庆市界石燃气设备有限公司 | Emergency cut-off valve for fuel gas equipment |
| CN106286851A (en) * | 2015-06-23 | 2017-01-04 | 博西华电器（江苏）有限公司 | Gas-cooker and gas valve assembly thereof |
| CN208458030U (en) * | 2017-11-21 | 2019-02-01 | 贵阳安宝燃气防爆安全设备有限公司 | Automatic timing fuel gas is closed and super stream automatic disconnecting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010043092A1 (en) * | 2010-10-29 | 2012-05-03 | Robert Bosch Gmbh | Pressure control valve |
-
2017
- 2017-11-21 CN CN201711163019.8A patent/CN109812839B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2065735U (en) * | 1990-04-27 | 1990-11-14 | 王鹏翔 | Timing automatic cut-off device for burning gas |
| CN2708132Y (en) * | 2003-12-04 | 2005-07-06 | 单天月 | Multifunctional gas safety relief valve |
| CN201636337U (en) * | 2010-01-18 | 2010-11-17 | 高翔 | Intelligent control valve for gas meter |
| CN104763827A (en) * | 2015-04-15 | 2015-07-08 | 特瑞斯（北京）流体科技有限公司 | Safety shut-off valve |
| CN106286851A (en) * | 2015-06-23 | 2017-01-04 | 博西华电器（江苏）有限公司 | Gas-cooker and gas valve assembly thereof |
| CN105299305A (en) * | 2015-10-30 | 2016-02-03 | 重庆市界石燃气设备有限公司 | Emergency cut-off valve for fuel gas equipment |
| CN208458030U (en) * | 2017-11-21 | 2019-02-01 | 贵阳安宝燃气防爆安全设备有限公司 | Automatic timing fuel gas is closed and super stream automatic disconnecting device |
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| Publication number | Publication date |
|---|---|
| CN109812839A (en) | 2019-05-28 |
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Inventor after: Zhong Haibin Inventor before: Zhong Haibin Inventor before: Xiong Mingdeng |
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