CN2600670Y

CN2600670Y - Kitchen gas safety valve with automatic shut-off device

Info

Publication number: CN2600670Y
Application number: CN 03238911
Authority: CN
Inventors: 张珉
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-06
Filing date: 2003-03-06
Publication date: 2004-01-21
Anticipated expiration: 2013-03-06

Abstract

A timing fire-control kitchen-use gas relief valve that helps reduce or avoid gas poisoning and fire accidents is improved from the prior gas-pressure control valve. The utility model an upper shell, a bottom shell, an installation screw, a gas inlet passage, an air intake, a pressure adjustment chamber, an outlet passage, a rubber file, a disbursing and inserting drawbar, a pressure adjustment lever, a pressure adjustment spring and a pressure adjustment screw. The utility model is characterized in that a timing device controlled by the spring force is installed at the upper shell, and a gas leaking automatic switch-off valve controlled by the lever force is installed between the gas inlet passage and the gas intake mouth. These arrangements aim to self switch off the gas in case that the gas pipe is aged and blown out to leak the gas, the flow is abnormal , the minor leaking occurs due to the switch abrasion resulting in the loose contact and the gas burner is extinguished automatically due to the hypotension, sudden gas in or gas stop happens without timely notice to the users due to the gas company is maintaining the gas pipe. These functions can effectively guarantee the gas security in time of using the gas. In addition, the valve belongs to the product for the majority of users.

Description

Automatic shut-off device kitchen gas safety valve

The utility model relates to a kind of kitchen gas safety valve, particularly a kind of automatic shut-off device kitchen gas safety valve.

The known state-of-the-art kitchen gas safety valve of present China, though close coal gas when it can or come off the gas leakage flow abnormity in the aging explosion of pipeline automatically, but it utilizes the gas pressure difference to close coal gas automatically, when gas pressure hour it close weak effect, sometimes even can be malfunctioning, Safety performance be unreliable.

In order to overcome the deficiency of existing kitchen gas safety valve, the utility model provides a kind of automatic shut-off device kitchen gas safety valve, when can not only or coming off the gas leakage flow abnormity in the aging explosion of gas pipe line, it closes coal gas automatically, the switch senile abrasion close coal gas of closing automatically when small leak occurring that is not closed completely, hypotony causes closes coal gas automatically when gas ring stops burning automatically, Gas Company maintenance pipeline is supplied gas suddenly or is died and close coal gas when having little time to notify the user to close coal gas automatically, the generation of fire casualty prevents to leak gas, but also can press the set time cooking food according to people's needs, avoid people to close the generation that coal gas causes burning foods or fire casualty disaster owing to forgetting.

The utility model solves its technological scheme: a kind of automatic shut-off device kitchen gas safety valve, it is to improve to form on the basis of existing coal gas pressure regulator valve, comprise upper shell and lower shell body, upper shell has the installation screw that is interconnected, gas-entered passageway, suction port, the pressure regulation chamber, timing automatic is closed the coal gas valve chamber, timing automatic is closed the coal gas valve seat, outlet passageway, the pressure regulation rubber film, dial the wooden fork pull bar, the pressure regulation lever, pressure adjusting spring, voltage regulation screw, the wind-up timer device, coal gas valve device is closed in gas leakage automatically, described timer arrangement is installed in this valve upper shell upper end, described timer arrangement rotary main shaft prolongation downwards passes appropriate position, timer housing lower end and is equiped with little recessed a wheel, the recessed wheel is provided with recessed the wheel a little, the lower end of described timer arrangement master gear center hole is provided with tooth and matches with protruding tooth on the timer arrangement rotary main shaft and can be adjusted to the required accurate cooking time when reaching people and regulate timing error neatly repeatedly and increase Safety performance, between timer arrangement housing upper end and knob installing pressure little spring with reach increase set tooth in timer master gear center hole lower end and timer rotary main shaft epirelief tooth applying degree of doing to guarantee its proper functioning.Also be provided with a recessed chamber of taking turns between bottom and this valve upper shell upper end under the described timer arrangement, be respectively equipped with the via that the coal gas valve rod is closed in installation in limited time at the recessed chamber two ends of taking turns, and closing in limited time in the coal gas valve rod insertion via, one end is installed protruding tooth and is matched with recessed the wheel, the other end is equiped with spool and closes the coal gas valve seat in limited time and match, close in limited time and install the pressure little spring is closed the coal gas spool as timing automatic power between coal gas spool and the via, close coal gas valve rod center also offers a long groove and matches with timer rotary main shaft end to guarantee closing the steady of coal gas valve rod work in limited time in limited time, the qualitative anti-gas-leak that is equiped with on the timer rotary main shaft seals little cushion rubber to prevent that coal gas is toward external leakage, described gas leakage is closed coal gas valve device automatically and is installed between gas-entered passageway and the suction port, spool push rod one end that coal gas valve device is closed in described gas leakage automatically inserts and to pass the suction port appropriate location and match with the pressure regulation lever the other end to reach the purpose that the control of pressure regulation lever is opened air inlet and closed coal gas automatically, wherein spool drops on the valve seat, dial wooden fork stuck point back and be equiped with the pressure little spring between the screw and match with spool and increase the dynamics that spool is closed automatically with installing, close the coal gas explosion PBU pushbutton unit in the installing releasing of appropriate location, admission line upper end and match with group wooden fork stuck point and close the purpose of coal gas automatically to reach releasing to reach.

Compared with the prior art the utility model has following advantage: close the working principle of coal gas valve device automatically owing to increase timer arrangement to be installed and have been changed to leak gas, make this valve have timing automatic and close coal gas and improve the effect that coal gas is closed in gas leakage automatically, ensured that effectively people use the Security of coal gas.

Below in conjunction with drawings and Examples to the utility model further instruction,

Fig. 1 is the sectional view of the utility model open mode.

Fig. 2 is the sectional view of the utility model closed condition.

Fig. 1 shows the schematic representation of the utility model structure.

A kind of automatic shut-off device kitchen gas safety valve, it is to improve to form on the basis of existing kitchen gas pressure regulator valve, it comprise upper shell (2) and lower shell body (3), upper shell have the installation screw (35) that is interconnected, gas-entered passageway (37), suction port (5), coal gas pressure regulation chamber (6), in limited time close automatically coal gas valve chamber (7), close coal gas valve seat (8), outlet passageway (9), pressure regulation rubber film (10), pressure regulation automatically in limited time and dial wooden fork pull bar (11), pressure regulation lever (12), wind-up timer device (15), leak gas and close coal gas valve device automatically.

Described pressure regulation rubber film (10) is installed between this valve upper shell (2) and the lower shell body (3), make the pressure regulation chamber become coal gas pressure regulation chamber (6) and air chamber (40), pressure regulation is dialled wooden fork pull bar (11) and is installed in the center of pressure regulation rubber film (10) and matches to reach the effect of automatic adjusting gas pressure with the inner pressure regulation lever of coal gas pressure regulation chamber (6), installs pressure adjusting spring (13) between rubber film (10) and voltage regulation screw (14).

Described wind-up timer device (15) is installed in this valve upper shell (2) upper end, timer rotary main shaft (16) prolongation downwards passes appropriate location, timer housing lower end and installs recessed a wheel (17), the recessed wheel is provided with the recessed point (27) of taking turns, described timer arrangement (15) master gear (19) center hole lower end is provided with tooth (20) and matches with protruding tooth on the timer arrangement rotary main shaft (16) and be adjusted to required correct time repeatedly to increase Safety performance to reach can turn round when people regulate cooking timing error, and pressure little spring (23) is installed between knob (22) and timer arrangement (15) upper shell and guarantees its proper functioning with the applying dynamics that increases set tooth (20) in timer master gear (19) lower end, center and the protruding tooth (21) on the rotary main shaft (16).

Also be provided with a recessed chamber (24) of taking turns between described this valve upper shell (2) and timer arrangement (15) bottom, and be respectively equipped with the installation via (25) of closing coal gas valve rod (31) in limited time at recessed two ends of taking turns chamber, and closing in limited time in coal gas valve rod (31) the insertion via (25), one end is provided with spool (28) and matches with valve seat (8), the other end is provided with protruding tooth (26) and matches with recessed wheel the (17) and close the effect of coal gas to reach timing automatic, close in limited time and install pressure little spring (30) between coal gas spool (28) and the via (25) as the power of closing coal gas spool (28) automatically, close coal gas valve rod (31) center offers a long groove (18) and matches to prevent the rotation of valve rod (31) with timer arrangement rotary main shaft (16) end in limited time, guarantee the stability of valve rod (31) work, also be provided with a little cushion rubber of sealing (39) in timer arrangement rotary main shaft (16) upper end to prevent that coal gas is toward external leakage.

Coal gas valve device is closed in described gas leakage automatically, it comprises spool (4), spool push rod (38), remove and close coal gas and dial wooden fork stuck point (34), pressure little spring (33), wherein spool (4), group wooden fork stuck point (34), spool push rod (38) are serially connected, spool push rod (38) one ends put in suction port (5) appropriate location and match with pressure regulation lever (12) the other end (36), close the effect of coal gas automatically to reach pressure regulation lever control unlatching air inlet and gas leakage.Pressure spring (33) is located to be dialled wooden fork stuck point (34) and installs between the screw (35) as the power of closing coal gas spool (4) automatically, removes to close coal gas explosion PBU pushbutton unit (29) and be located at appropriate location, gas-entered passageway (37) upper end and dial the wooden fork stuck point and match to reach the effect that the coal gas spool is closed in coal gas and releasing automatically of opening.

This valve can separately be made the product of two kinds of forms, (kitchen gas safety valve and the kitchen gas safety valve that does not have timer arrangement that timer arrangement is promptly arranged.)

Using method and working principle

In use, main switch turns on the gas-fire earlier, make valve rod (41) push wooden fork stuck point (34) aside by explosion-proof button device (29) down then, coal gas can enter coal gas pressure regulation chamber (6) the inner, under the effect of atmospheric pressure, pressure regulation rubber film (10) moves downward drive to be dialled power pull bar (11) and pressure regulation lever (2), the pressure regulation lever the other end (36) and backs down this valve of spool push rod (38) and can enter proper functioning.When accidental gas leakage surpasses the normal use traffic of gas ring, the inner air pressure of coal gas pressure regulation chamber (6) diminishes, pressure regulation lever (12) moves upward under the effect of pressure adjusting spring (13) power, the pressure regulation lever the other end (36) leaves spool push rod (38), and spool (4) can be closed the coal gas path automatically under the effect of pressure little spring (33) power.

The timer arrangement operation instruction

When people need the set time cooking food, can be adjusted to needed time clockwise, when not needing the set time cooking food, can rotate to normally open stuck point place counterclockwise and get final product from timer arrangement knob (22) upper end.

Claims

1, a kind of automatic shut-off device kitchen gas safety valve, it is to improve to form on the basis of existing coal gas pressure regulator valve, comprise upper shell and lower shell body, upper shell has the installation screw that is interconnected, gas-entered passageway, suction port, the pressure regulation chamber, timing automatic is closed the coal gas valve chamber, regularly close the coal gas valve seat, outlet passageway, the pressure regulation rubber film, dial the wooden fork pull bar, the pressure regulation lever, pressure adjusting spring, voltage regulation screw, it is characterized in that, described upper shell (2) upper end is equiped with a wind-up timer device (15), is equiped with the control valve unit that coal gas is closed in a gas leakage automatically between described gas-entered passageway (37) and the suction port (5).

2, automatic shut-off device kitchen gas safety valve according to claim 1, it is characterized in that, described wind-up timer device (15) rotary main shaft (16) prolongation downwards passes appropriate position, timer housing lower end and is equiped with recessed a wheel (17), the recessed wheel is provided with the recessed point (27) of taking turns, the lower end of described timer arrangement (15) master gear (19) center hole is provided with tooth (20) and matches with protruding tooth (21) on the rotary main shaft (16), between timer arrangement (15) housing upper end and knob (22), install pressure spring (23), also be provided with a recessed chamber (24) of taking turns between bottom and this valve upper shell (2) upper end under the described timer arrangement (15), the recessed chamber two ends of taking turns are respectively equipped with installation and close the via of coal gas valve rod (31) (25) in limited time, and closing in limited time in coal gas valve rod (31) the insertion via (25), one end is provided with protruding tooth (26) and matches with recessed wheel the (17), the other end is equiped with spool (28) and closes coal gas valve seat (8) in limited time and match, installing pressure little spring (30) between spool (28) and via (25), close coal gas valve rod (31) center in limited time and also be provided with a long groove (18) and match, seal little cushion rubber (39) at anti-gas-leak of timer arrangement (15) rotary main shaft (16) upper end installing with timer rotary main shaft (16) end.

3, automatic shut-off device gas relief valve according to claim 1, it is characterized in that, spool push rod (38) one ends that coal gas valve device is closed in described gas leakage automatically insert and to pass suction port (5) appropriate location and match with pressure regulation lever (12) the other end (36), wherein spool (4) drops on the valve seat (32), dial wooden fork stuck point (34) back and install that installing pressure little spring (33) matches with spool (4) between the screw (35), the explosion-proof button device (29) of closing coal gas in the installing releasing of appropriate location, gas-entered passageway (37) upper end matches with group wooden fork stuck point (34).