CN108679266B - Gas valve capable of controlling two fire rows and having long open fire function - Google Patents
Gas valve capable of controlling two fire rows and having long open fire function Download PDFInfo
- Publication number
- CN108679266B CN108679266B CN201810851857.2A CN201810851857A CN108679266B CN 108679266 B CN108679266 B CN 108679266B CN 201810851857 A CN201810851857 A CN 201810851857A CN 108679266 B CN108679266 B CN 108679266B
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- valve
- air outlet
- outlet channel
- knob
- fire
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- 238000000034 method Methods 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 5
- 230000008602 contraction Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 42
- 239000002737 fuel gas Substances 0.000 description 12
- 230000001276 controlling effect Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
Abstract
The utility model relates to a gas valve capable of controlling two fire rows and having a long open fire function, which comprises a valve body, wherein the valve body is internally provided with a gas inlet channel, a first gas outlet channel and a second gas outlet channel, a valve core is arranged in the valve body, the lower part of the valve core is provided with a vent cavity with a downward opening, the side wall of the vent cavity is provided with a fire hole, and a knob rod for driving the valve core to rotate is arranged on the valve body in a penetrating way; the method is characterized in that: the valve body is internally provided with a long open fire air outlet channel and a valve plate for controlling the air outlet quantity of the first air outlet channel, the valve plate is driven to move by the rotation of the knob rod, the long open fire air outlet channel and the first air outlet channel are positioned on one side of the valve core, the second air outlet channel is positioned on the other side of the valve core, and the air inlet channel is positioned at the bottom of the valve core. The gas valve is reasonable in structural design, can ensure the ignition efficiency of the lower fire row, can control two fire rows and has a long open fire function.
Description
Technical Field
The utility model relates to a gas plug valve, in particular to a gas valve which is used for a gas oven, can control two fire rows and has a long open fire function.
Background
Some gas ovens have two baking chambers arranged at intervals up and down, each baking chamber is provided with a fire row, in general, a lower fire row in the lower baking chamber has a fire control possibility, and an upper fire row in the upper baking chamber has a certain fire intensity, and is generally a big fire. The lower fire row is completely shielded by the oven body, and the upper fire row is visible, so that when the lower fire row is ignited, whether the ignition is successful cannot be observed by eyes, if the ignition is unsuccessful for a plurality of times, the fuel gas is released in the ignition process, when the ignition is successful next time, the explosion sound of 'bang' is generated when the fuel gas content of the surrounding air of the lower fire row is larger, certain potential safety hazards exist, and some countries go out of the national standard, and the conditions cannot occur. The ignition device can directly observe whether ignition is successful or not, so that the condition is not existed. Such a gas oven is disclosed in chinese patent No. ZL201220709936.8 (bulletin No. CN 203059420U), a double cavity gas oven composed of baffles.
The existing gas valve for a gas oven only has the function of controlling two fire rows, for example, a Chinese patent utility model patent with patent number ZL201020682600.8 (publication number CN 201902610U) discloses a plug valve for the gas oven, which comprises a valve body, a valve seat, a valve core, a push rod, a sealing ring, a rotating shaft, a locking nut, a flow adjusting screw and a flameout protection device; the valve body and the valve seat are connected through a first machine wire; the valve body comprises a main regulating channel positioned in the middle, a left gas outlet and a right gas outlet are arranged on the left side and the right side of the main regulating channel, and a gas inlet and a flameout protection device are arranged on the lower side of the main regulating channel; the valve core is rotatably arranged in the main regulating channel of the valve body. The peripheral wall of the valve core of the gas valve for the gas oven is provided with a plurality of series of fire holes with different pore sizes, and different fire holes are selectively communicated with the first gas channel and the second gas channel through different rotation angles of the valve core, so that the control of the fire intensity is finally realized.
The design of a gas valve which can control two fire rows and ensure the ignition efficiency of the lower fire row is a technical problem which needs to be solved by the person skilled in the art.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the gas valve which is reasonable in structural design, can ensure the ignition efficiency of the lower fire row, can control two fire rows and has the function of long open fire aiming at the current state of the art.
The technical scheme adopted for solving the technical problems is as follows: the gas valve with the functions of controlling two fire rows and long open fire comprises a valve body, wherein the valve body is internally provided with a gas inlet channel, a first gas outlet channel and a second gas outlet channel, a rotatable valve core is arranged in the valve body, the lower part of the valve core is provided with a downward opening ventilation cavity, the side wall of the ventilation cavity is provided with a fire hole, a knob rod used for driving the valve core to rotate is arranged on the valve body in a penetrating manner, and the knob rod keeps upward movement trend; the method is characterized in that: the valve body is internally provided with a long open fire air outlet channel and a valve plate for controlling the air outlet quantity of the first air outlet channel, the valve plate is driven to move by the rotation energy of the knob rod, the long open fire air outlet channel and the first air outlet channel are positioned on one side of the valve core, the second air outlet channel is positioned on the other side of the valve core, and the air inlet channel is positioned at the bottom of the valve core; when the knob rod and the valve core are in an original state, the fire hole is blocked with the first air outlet channel, the second air outlet channel and the long-open fire air outlet channel at the same time; when the knob rod rotates clockwise from an original state to a first angle state, the fire hole which drives the valve core to rotate on the knob rod is blocked with the open fire air outlet channel and the first air outlet channel, and meanwhile, the fire hole is communicated with the second air outlet channel; when the knob rod rotates anticlockwise from an original state to a second angle state, the valve core is driven to rotate until a fire hole on the knob rod is blocked by the second air outlet channel, the valve plate is positioned at a position for blocking the communication between the fire hole and the first air outlet channel, and meanwhile, the fire hole is communicated with the open fire air outlet channel; in the process that the knob rod continuously rotates anticlockwise to a third angle from the second angle state, the rotation of the knob rod does not drive the valve core to rotate any more, the rotation of the knob rod drives the valve plate to move in the direction of increasing the air outlet quantity of the first air outlet channel, and the fire hole is simultaneously communicated with the long-life fire air outlet channel and the first air outlet channel.
Because the first air outlet channel is generally arranged at the side part, the inlet position of the first air outlet channel is not on the same axis with the knob rod, and the valve block is inconvenient to match with the inlet position of the first air outlet channel, so that the valve block and the knob rod are far deviated, and the valve rod is inconvenient to be connected with the valve block which is arranged in a deviated mode. Preferably, a valve port is arranged in the valve body and is positioned right below the knob rod, the valve plate is restrained below the valve port and can move up and down, the opening degree of the valve port is increased by moving the valve plate downwards, the opening degree of the valve port is reduced by moving the valve plate upwards, the open fire air outlet channel and the fire hole are positioned above the valve plate, and the first air outlet channel is positioned below the valve plate; in the process that the knob rod continuously rotates anticlockwise from the second angle state to the third angle, the rotation of the knob rod drives the valve plate to move downwards; in the process that the knob rod rotates clockwise from the third angle to the second angle, the rotation of the knob rod drives the valve plate to move upwards. The valve plate can be positioned below the knob rod, and is convenient to be connected with the knob rod.
Preferably, the valve plate still closes the valve port when the knob stem is rotated counterclockwise from the original state to the second angular state. Therefore, the gas can only pass through the long-open-fire gas outlet channel, the gas outlet quantity is smaller, the gas only needs to ignite the long-open-fire first, the first gas outlet channel basically does not give out gas, and the stable ignition of the lower fire discharge is further ensured.
As an improvement, an auxiliary air passage is arranged in the valve body, an air inlet of the auxiliary air passage is positioned above the valve port, an air outlet of the auxiliary air passage is positioned below the valve port, and under the condition that the knob rod rotates clockwise from an original state to a first angle state, fuel gas can only be communicated with the first air outlet passage through the auxiliary air passage, and an adjusting screw for adjusting the air outlet quantity of the auxiliary air passage is vertically arranged in the auxiliary air passage in a penetrating manner. The setting of the adjusting screw can adjust the fire of the minimum fire of the lower fire row.
Further improved, the valve plate is fixed in the middle of a valve rod, the upper part of the valve rod is inserted into a connecting hole at the lower end of a knob rod, the knob rod can move up and down relative to the valve rod, the rotation of the knob rod can drive the rotation of the valve rod, a threaded hole with a downward opening is formed in the bottom of the valve rod, a threaded column is fixed at the bottom in the valve body, and the threaded column is located below the valve rod and is inserted into the threaded hole in a threaded mode. Because the valve rod is rotation operation, the valve plate is driven to move by the structure through the principle of thread transmission, and the valve rod is utilized to rotate to drive the valve plate to move up and down, so that the design is more reasonable.
In order to enable the gas valve to have an automatic temperature control and adjustment function, preferably, a power component is fixedly arranged at the bottom of the valve body in a penetrating manner, the threaded column is arranged on the power component, and the power component can move up and down through thermal expansion and cold contraction. The power part is connected with the temperature sensing rod through the heat conducting part, temperature sensing oil is arranged in the power part, the power part is driven to move up and down through thermal expansion and contraction, when the temperature of a fire exhaust reaches a certain temperature, the temperature sensing rod conducts heat to the temperature sensing oil through the heat conducting part, the power part moves up and down under the pushing of the temperature sensing oil, finally, the valve plate is adjusted in the up-down position, and the air outlet quantity of the first air outlet channel is controlled.
In order to limit the maximum rotation angle of the knob rod and limit the knob rod in an original state, a rotary limiting disc is fixed on the knob rod and is provided with a laterally protruding limiting block, and a limiting groove and an arc-shaped boss are formed in the top surface in the valve body; when the knob rod is in an original state, a limiting block on the rotation limiting disc keeps a trend of being clamped into the limiting groove; when the knob rod rotates clockwise from an original state to a first angle state, a limiting block on the rotation limiting disc contacts with one side of the arc-shaped boss to prevent the knob rod from rotating further clockwise; and in a state that the knob rod rotates anticlockwise to a third angle, a limiting block on the rotation limiting disc is contacted with the other side of the arc-shaped boss to prevent the knob rod from rotating anticlockwise further. The knob rod can be rotated only by pressing down in the original state, and the safety is high.
Further improvement, the axes of the knob rod and the valve core are arranged at intervals in parallel, the knob rod is sleeved with a driving gear which can rotate along with the knob rod, the knob rod can slide up and down relative to the driving gear, and the driving gear has one section of driving arc-shaped tooth part and the other section of tooth-free arc-shaped surface; the valve core is sleeved with a driven gear which can rotate along with the valve core, the driven gear has only one section of driven arc-shaped tooth part, and the other section of driven gear is a toothless arc-shaped surface; when the knob rod and the valve core are in an original state, the middle part of the active arc-shaped tooth part is meshed with the middle part of the passive arc-shaped tooth part; the active arc-shaped tooth part is meshed with the passive arc-shaped tooth part during the clockwise rotation of the knob rod from the original state to the first angle and the anticlockwise rotation of the knob rod from the original state to the second angle; and in the process that the knob rod continuously rotates anticlockwise from the second angle state to the third angle, the driving arc-shaped tooth part is disengaged from the driven arc-shaped tooth part. The rotary knob rod can drive the valve core to rotate when two gears are meshed with each other, otherwise, the rotary knob rod can only idle.
For making gas valve operation have more security, be equipped with in the above-mentioned valve body and be used for safety solenoid valve, safety solenoid valve is located the below of case, the case still has the cavity of going up, and the ejector pin is worn to be equipped with in the bottom surface of going up the cavity, and the downmovement of ejector pin can trigger safety solenoid valve, the cover is equipped with the spring that makes the ejector pin keep the trend of shifting up on the ejector pin, and the spring is located the cavity of going up, still be equipped with a wane in the valve body, the top of ejector pin acts on the free end of wane to make the wane can upwards tilt up around one end, the wane of wane acts on the knob pole is in order to make the knob pole keep the trend of shifting up. Only the knob rod is pressed down to send out the safety electromagnetic valve, the air source main switch can be started, if the knob rod is not pressed down in place, the safety electromagnetic valve is not triggered, and even if the valve core rotates, the fuel gas does not flow out. In addition, the ejector rod itself triggering the safety electromagnetic valve needs to be jacked by a spring, and the structure is combined with the seesaw, so that the spring keeps the knob rod moving upwards, and the spring is not required to be additionally arranged for the knob rod.
For the equipment of being convenient for, above-mentioned valve body is by valve casing, valve gap, rear joint, and left side connects and right joint is constituteed, the valve gap is fixed at the valve casing top, and left side connects and right joint connect respectively in the left and right sides of valve casing, rear joint then threaded connection is at the rear portion of valve casing, set up on the long open fire passageway of giving vent to anger and connect after, first passageway of giving vent to anger sets up on right joint, the second passageway of giving vent to anger sets up on the left side connects, the passageway of admitting air sets up on the preceding lateral wall of valve casing, the knob pole wears to establish on the valve gap and stretches into in the valve casing.
Compared with the prior art, the utility model has the advantages that: the gas valve is provided with the first gas outlet channel and the second gas outlet channel, so that the first gas outlet channel can supply gas to the upper fire row, and the second gas outlet channel can supply gas to the lower fire row, so that the gas valve has the function of controlling the two fire rows; in addition, the long open fire air outlet channel and the valve plate are additionally arranged, and the long open fire air outlet channel and the second air outlet channel are positioned on the same side, so that when the valve core rotates to the state that the fire hole is communicated with the long open fire air outlet channel, fuel gas firstly passes through the long open fire air outlet channel, the long open fire on the lower fire row is firstly ignited, the knob rod is continuously rotated, after the second air outlet channel is ventilated, the success rate of effectively igniting the lower fire row is ensured, and when the lower fire row is not unsuccessful in ignition, the lower fire row continuously discharges the fuel gas, so that the use is safer; the setting of this structure valve block can adjust the intensity of a fire of lower fire row moreover, and is not just like traditional gas valve, through rotating the different angles of case, makes the fire hole of different apertures aim at the air flue and realizes the intensity of a fire regulation, and this intensity of a fire regulation structure simplifies the case structure greatly.
Drawings
FIG. 1 is a schematic perspective view of a first embodiment of the present utility model;
FIG. 2 is a schematic perspective view of a first embodiment of the present utility model;
FIG. 3 is a cross-sectional view of an embodiment of the present utility model;
FIG. 4 is a cross-sectional view of an embodiment of the present utility model with a spool in place;
FIG. 5 is a cross-sectional view of an embodiment of the present utility model at the location of a knob stem;
FIG. 6 is a partial exploded perspective view of an embodiment of the present utility model;
FIG. 7 is a schematic diagram illustrating assembly of a rotation limiting disc and a valve cover according to an embodiment of the present utility model;
FIG. 8 is a schematic perspective view of a third embodiment of the present utility model;
fig. 9 is a schematic diagram of the working principle of the embodiment of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1-9, is a preferred embodiment of the present utility model.
The utility model provides a can control two fires and arrange and have gas valve of long open fire function, includes that inside has the valve body 1 of air inlet channel 1a, first air outlet channel 1b and second air outlet channel 1c, is equipped with rotatable case 2 in the valve body 1, and case 2 lower part is equipped with opening down ventilation chamber 21, and it has fire hole 22 to open on the ventilation chamber 21 lateral wall, wears to be equipped with on the valve body 1 to be used for driving the rotatory knob pole 3 of case 2, knob pole 3 keeps the trend of shifting up.
The valve body 1 is internally provided with a long open fire air outlet channel 1d and a valve plate 4 for controlling the air outlet quantity of the first air outlet channel 1b, the valve plate 4 is driven to move by the rotation energy of the knob rod 3, the long open fire air outlet channel 1d and the first air outlet channel 1b are positioned on one side of the valve core 2, the second air outlet channel 1c is positioned on the other side of the valve core 2, and the air inlet channel 1a is positioned at the bottom of the valve core 2; the valve body 1 comprises a valve shell 11, a valve cover 12, a rear joint 13, a left joint 14 and a right joint 15, wherein the valve cover 12 is fixed at the top of the valve shell 11, the left joint 14 and the right joint 15 are respectively connected at the left side and the right side of the valve shell 11, the rear joint 13 is in threaded connection with the rear part of the valve shell 11, a pilot fire air outlet channel 1d is arranged on the rear joint 13, a first air outlet channel 1b is arranged on the right joint 15, a second air outlet channel 1c is arranged on the left joint 14, an air inlet channel 1a is arranged on the front side wall of the valve shell 11, and a knob rod 3 is arranged on the valve cover 12 in a penetrating manner and stretches into the valve shell 11.
In the original state of the knob rod 3 and the valve core 2, the fire hole 22 is blocked from the first air outlet channel 1b, the second air outlet channel 1c and the open fire air outlet channel 1d at the same time.
In the state that the knob rod 3 rotates clockwise from the original state to the first angle alpha 1, the fire hole which drives the valve core 2 to rotate is blocked with the open fire air outlet channel 1d and the first air outlet channel 1b, and meanwhile, the fire hole 22 is communicated with the second air outlet channel 1 c. The first angle α1 in the present embodiment is 62 degrees.
When the knob rod 3 rotates anticlockwise from the original state to the second angle alpha 2 state, the valve core 2 is driven to rotate until the fire hole 22 on the valve core is blocked with the second air outlet channel 1c, the valve plate 4 is positioned at a position for blocking the communication between the fire hole 22 and the first air outlet channel 1b, and meanwhile, the fire hole 22 is communicated with the long-life open fire air outlet channel 1 d. The second angle α2 in the present embodiment is 50 degrees.
In the process that the knob rod 3 continues to rotate anticlockwise from the second angle alpha 2 state to the third angle alpha 3, the rotation of the knob rod 3 does not drive the valve core 2 to rotate any more, and the rotation of the knob rod 3 drives the valve plate 4 to move in the direction of increasing the air outlet amount of the first air outlet channel 1b, and the fire hole 22 is simultaneously communicated with the long-life fire air outlet channel 1d and the first air outlet channel 1 b. The third angle α3 in the present embodiment is 231 degrees.
The valve body 1 is internally provided with a valve port 111, the valve port 111 is positioned right below the knob rod 3, the valve plate 4 is restrained below the valve port 111 and can move up and down, the downward movement of the valve plate 4 can increase the opening degree of the valve port 111, the upward movement of the valve plate 4 can reduce the opening degree of the valve port 111, the open-fire air outlet channel 1d and the fire hole are positioned above the valve plate 4, and the first air outlet channel 1b is positioned below the valve plate 4; in the process that the knob rod 3 continues to rotate anticlockwise from the second angle alpha 2 state to the third angle alpha 3, the rotation of the knob rod 3 drives the valve plate 4 to move downwards; in the process that the knob rod 3 rotates clockwise from the third angle alpha 3 to the second angle alpha 2, the rotation of the knob rod 3 drives the valve plate 4 to move upwards. The valve block 4 is fixed in the middle part of a valve rod 6, and in the connecting hole 32 of knob pole 3 lower extreme was inserted to the upper portion of valve rod 6, the upper portion cross section of valve rod 6 was the polygon, and corresponding connecting hole 32 is the polygon hole, and knob pole 3 can reciprocate and the rotation of knob pole 3 can drive the rotation of valve rod 6 relatively valve rod 6, and open the bottom of valve rod 6 has the screw hole 61 of opening down, and the bottom in the valve body 1 is fixed with screw post 71, and screw post 71 is located the below of valve rod 6 and inserts threaded connection in screw hole 61. The power part 7 is fixedly penetrated at the bottom of the valve body 1, the threaded column 71 is arranged on the power part 7, the power part 7 can move up and down through expansion with heat and contraction with cold, and the structure inside the power part 7 is not shown in the drawing. The driving structure of the power component 7 is connected with the temperature sensing rod 72, the built-in cavity of the power component is provided with temperature sensing oil, the cavity can move up and down according to the expansion caused by heat and contraction caused by cold of the internal temperature sensing oil, when the temperature of the fire exhaust reaches a certain temperature, the heat of the temperature sensing rod 72 is conducted to the temperature sensing oil through the heat conducting component, the power component 7 moves up and down under the pushing of the temperature sensing oil (is heated, expands, the power component 7 moves down, contracts when encountering cold, and the power component 7 moves up), and finally the adjustment of the up-down position of the valve plate 4 is realized, so that the air outlet quantity of the first air outlet channel 1b is controlled.
The power part 7 is connected with the bottom of the valve body 1 in a threaded manner, and the threaded column 71 is arranged on the power part 7.
In the case where the knob stem 3 is rotated counterclockwise from the original state to the second angular state, the valve plate 4 still closes the valve port 111. An auxiliary air passage 1e is arranged in the valve body 1, an air inlet 1e1 of the auxiliary air passage 1e is positioned above the valve port 111, an air outlet 1e2 of the auxiliary air passage 1e is positioned below the valve port 111, and under the condition that the knob rod 3 rotates clockwise from an original state to a first angle state, fuel gas can only be communicated with the first air outlet passage 1b through the auxiliary air passage 1e, and an adjusting screw 5 for adjusting the air outlet quantity of the auxiliary air passage 1e is vertically arranged in the auxiliary air passage 1e in a penetrating manner.
A rotary limiting disc 31 is fixed on the knob rod 3, the rotary limiting disc 31 is provided with a laterally protruding limiting block 311, and a limiting groove 121 and an arc-shaped boss 122 are formed in the top surface in the valve body 1; in the original state of the knob rod 3, the limit block 311 on the rotation limit disc 31 keeps the trend of being blocked into the limit groove 121; in the state that the knob stem 3 is rotated clockwise from the original state to the first angle α1, the stopper 311 on the rotation stopper plate 31 contacts with one side of the arc-shaped boss 122 to prevent the knob stem 3 from being rotated further clockwise; in a state where the knob stem 3 is rotated counterclockwise to the third angle α3, the stopper 311 on the rotation stopper plate 31 contacts the other side of the arc-shaped boss 122 to prevent the knob stem 3 from being rotated further counterclockwise.
The axis of the knob rod 3 and the axis of the valve core 2 are arranged at intervals in parallel, a driving gear 8 capable of rotating along with the knob rod 3 is sleeved on the knob rod 3, the knob rod 3 can slide up and down relative to the driving gear 8, the driving gear 8 has only one section of driving arc-shaped tooth part 81, and the other section of driving gear 8 is a first toothless arc-shaped surface 82; the valve core 2 is sleeved with a driven gear 9 which can rotate along with the valve core 2, the driven gear 9 has only one section of driven arc-shaped tooth part 91, and the other section of driven gear is a second toothless arc-shaped surface 92; in the original state of the knob rod 3 and the valve core 2, the middle part of the active arc-shaped tooth part 81 is meshed with the middle part of the passive arc-shaped tooth part 91; the active arc-shaped tooth portion 81 is engaged with the passive arc-shaped tooth portion 91 during the clockwise rotation of the knob stem 3 from the original state to the first angle α1 and during the counterclockwise rotation of the knob stem 3 from the original state to the second angle α2; during the continued counterclockwise rotation of the knob stem 3 from the second angle α2 state to the third angle α3, the active arc tooth 81 is disengaged from the passive arc tooth 91.
The valve body 1 is internally provided with a safety electromagnetic valve 10, the safety electromagnetic valve 10 is positioned below the valve core 2, the valve core 2 is further provided with an upper cavity 23, the bottom surface of the upper cavity 23 is provided with a push rod 16 in a penetrating way, the downward movement of the push rod 16 can trigger the safety electromagnetic valve 10, the push rod 16 is sleeved with a spring 17 which enables the push rod 16 to keep upward movement trend, the spring 17 is positioned in the upper cavity 23, the valve body 1 is also internally provided with a rocker 18, the top of the push rod 16 acts on the free end of the rocker 18, so that the rocker 18 can tilt upwards around one end, and the tilted rocker 18 acts on the knob rod 3, so that the knob rod 3 keeps upward movement trend.
The working principle and the working process of the gas valve are as follows:
the knob rod 3 is pressed down, the limiting block 311 is separated from the limiting groove 121 to be restrained, the seesaw 18 is pushed to overcome the elastic force of the spring 17 to deflect, and then the ejector rod 16 is driven to move down to trigger the safety electromagnetic valve 10, and the air source main switch is opened.
The knob rod 3 is rotated clockwise from the original state to a first angle alpha 1, under the meshing transmission action of the active arc-shaped tooth part 81 and the passive arc-shaped tooth part 91, the fire hole on which the valve core 2 rotates anticlockwise is blocked by the long open fire air outlet channel 1d and the first air outlet channel 1b, meanwhile, the fire hole 22 is communicated with the second air outlet channel 1c, at this time, the fuel gas sequentially passes through the air inlet channel 1a, the air ventilation cavity 21 and the fire hole 22 and then is discharged through the second air outlet channel 1c, and the second air outlet channel 1c can be communicated with the fire charging discharge in the fuel gas oven, so that the fire charging discharge is controlled.
The knob rod 3 is rotated anticlockwise from the original state to a second angle alpha 2, the fire hole 22 on the valve core 2 is blocked with the second air outlet channel 1c, the valve plate 4 still closes the valve port 111 to be in a position for blocking the communication between the fire hole 22 and the first air outlet channel 1b, meanwhile, the fire hole 22 is communicated with the long-life fire air outlet channel 1d, and at the moment, fuel gas sequentially passes through the air inlet channel 1a, the air ventilation cavity 21 and the fire hole 22 and then is discharged through the long-life fire air outlet channel 1d, so that the long-life fire is ignited.
In the process that the knob rod 3 continues to rotate anticlockwise from the second angle alpha 2 state to the third angle alpha 3, the rotation of the knob rod 3 does not drive the valve core 2 to rotate any more, the rotation of the knob rod 3 drives the valve plate 4 to move in the direction of increasing the air outlet amount of the first air outlet channel 1b, and the fuel gas sequentially passes through the air inlet channel 1a, the air ventilation cavity 21, the fire hole 22 and the valve port 111 and then is discharged through the first air outlet channel 1b, and the first air outlet channel 1b can be communicated with a lower fire row in the fuel gas oven, so that the lower fire row is controlled. In the second angle alpha 2 and the third angle alpha 3, the rotation of the knob rod clockwise increases the fire discharging intensity of the lower fire, and the rotation of the knob rod anticlockwise decreases the fire discharging intensity of the lower fire.
It should be noted that, in the description of the present embodiment, the terms "front, rear", "left, right", "upper, lower", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Claims (9)
1. The utility model provides a can control two fires and arrange and have gas valve of long open fire function, includes inside valve body (1) that has inlet channel (1 a), first air outlet channel (1 b) and second air outlet channel (1 c), is equipped with rotatable case (2) in valve body (1), and case (2) lower part is equipped with opening down ventilation chamber (21), opens on ventilation chamber (21) lateral wall has fire hole (22), wears to be equipped with on valve body (1) and is used for driving case (2) rotatory knob pole (3), and knob pole (3) keeps the trend of shifting up; the method is characterized in that: the valve body (1) is internally provided with a long open fire air outlet channel (1 d) and a valve plate (4) for controlling the air outlet quantity of the first air outlet channel (1 b), the valve plate (4) is driven to move by the rotation energy of the knob rod (3), the long open fire air outlet channel (1 d) and the first air outlet channel (1 b) are positioned on one side of the valve core (2), the second air outlet channel (1 c) is positioned on the other side of the valve core (2), and the air inlet channel (1 a) is positioned at the bottom of the valve core (2);
when the knob rod (3) and the valve core (2) are in an original state, the fire hole (22) is blocked with the first air outlet channel (1 b), the second air outlet channel (1 c) and the long-open fire air outlet channel (1 d) at the same time;
when the knob rod (3) rotates clockwise from an original state to a first angle (alpha 1) state, a fire hole (22) which drives the valve core (2) to rotate on the knob rod is blocked with the long open fire air outlet channel (1 d) and the first air outlet channel (1 b), and meanwhile, the fire hole (22) is communicated with the second air outlet channel (1 c);
when the knob rod (3) rotates anticlockwise from an original state to a second angle (alpha 2) state, the valve core (2) is driven to rotate until a fire hole (22) on the valve core is blocked by a second air outlet channel (1 c), the valve plate (4) is positioned at a position for blocking the communication between the fire hole (22) and the first air outlet channel (1 b), and meanwhile, the fire hole is communicated with a long-open fire air outlet channel (1 d);
in the process that the knob rod (3) continues to rotate anticlockwise from the second angle (alpha 2) to the third angle (alpha 3), the rotation of the knob rod (3) does not drive the valve core (2) to rotate any more, the rotation of the knob rod (3) drives the valve plate (4) to move in the direction of increasing the air outlet quantity of the first air outlet channel (1 b), and the fire hole (22) is communicated with the long-life fire air outlet channel (1 d) and the first air outlet channel (1 b) at the same time;
the rotary knob comprises a rotary knob rod (3) and a valve core (2), wherein the rotary knob rod (3) is provided with a driving gear (8) which can rotate along with the rotary knob rod (3) in a sleeved mode, the rotary knob rod (3) can slide up and down relative to the driving gear (8), the driving gear (8) has only one section of driving arc-shaped tooth part (81), and the other section of driving gear is a first toothless arc-shaped surface (82); the valve core (2) is sleeved with a driven gear (9) which can rotate along with the valve core (2), the driven gear (9) has only one section of driven arc-shaped tooth part (91), and the other section of driven gear is a second toothless arc-shaped surface (92); when the knob rod (3) and the valve core (2) are in an original state, the middle part of the active arc-shaped tooth part (81) is meshed with the middle part of the passive arc-shaped tooth part (91); the active arcuate tooth (81) engages with the passive arcuate tooth (91) during clockwise rotation of the knob stem (3) from the original state to a first angle (α1) and during counterclockwise rotation of the knob stem (3) from the original state to a second angle (α2); the active arc-shaped tooth part (81) is disengaged from the passive arc-shaped tooth part (91) in the process that the knob rod (3) continues to rotate anticlockwise from the second angle (alpha 2) state to the third angle (alpha 3).
2. The gas valve with long open flame function capable of controlling two flame rows according to claim 1, wherein: the valve body (1) is internally provided with a valve port (111), the valve port (111) is positioned right below the knob rod (3), the valve plate (4) is restrained below the valve port (111) and can move up and down, the downward movement of the valve plate (4) can increase the opening degree of the valve port (111), the upward movement of the valve plate (4) can reduce the opening degree of the valve port (111), the open fire air outlet channel (1 d) and the fire hole are positioned above the valve plate (4), and the first air outlet channel (1 b) is positioned below the valve plate (4); in the process that the knob rod (3) continuously rotates anticlockwise from the second angle (alpha 2) state to the third angle (alpha 3), the rotation of the knob rod (3) drives the valve plate (4) to move downwards; in the process that the knob rod (3) rotates clockwise from the third angle (alpha 3) to the second angle (alpha 2), the rotation of the knob rod (3) drives the valve plate (4) to move upwards.
3. The gas valve with long open flame function capable of controlling two flame rows according to claim 2, wherein: when the knob rod (3) rotates anticlockwise from the original state to the second angle state, the valve plate (4) still closes the valve port (111).
4. A gas valve with a long open flame function capable of controlling two flame rows according to claim 3, characterized in that: be equipped with auxiliary air flue (1 e) in valve body (1), air inlet (1 e 1) of auxiliary air flue (1 e) are located valve port (111) top, and air outlet (1 e 2) of auxiliary air flue (1 e) are located valve port (111) below, and under knob pole (3) rotated to first angle state clockwise from the original state, gas can only be through auxiliary air flue (1 e) and first air outlet channel (1 b) intercommunication, vertical adjusting screw (5) that are used for adjusting auxiliary air flue (1 e) air outlet volume of wearing in auxiliary air flue (1 e).
5. The gas valve with long open flame function capable of controlling two flame rows according to claim 2, wherein: the valve block (4) is fixed in the middle part of a valve rod (6), in connecting hole (32) of knob pole (3) lower extreme are inserted on the upper portion of valve rod (6), and knob pole (3) can reciprocate and the rotation of knob pole (3) can drive the rotation of valve rod (6) relative valve rod (6), and open the bottom of valve rod (6) has screw hole (61) of opening down, the bottom in valve body (1) is fixed with screw post (71), and screw post (71) are located the below of valve rod (6) and insert threaded connection in screw hole (61).
6. The gas valve with long open flame function capable of controlling two flame rows according to claim 5, wherein: the power component (7) is fixedly arranged at the bottom of the valve body (1) in a penetrating mode, the threaded column (71) is arranged on the power component (7), and the power component (7) can move up and down through thermal expansion and cold contraction.
7. The gas valve with long open flame function capable of controlling two flame rows according to claim 1, wherein: a rotary limiting disc (31) is fixed on the knob rod (3), the rotary limiting disc (31) is provided with a laterally protruding limiting block (311), and a limiting groove (121) and an arc-shaped boss (122) are formed in the top surface in the valve body (1); when the knob rod (3) is in an original state, a limiting block (311) on the rotation limiting disc (31) keeps a trend of being clamped into the limiting groove (121); in the state that the knob rod (3) rotates clockwise from an original state to a first angle (alpha 1), a limiting block (311) on the rotation limiting disc (31) contacts with one side of the arc-shaped boss (122) to prevent the knob rod (3) from rotating further clockwise; in a state that the knob rod (3) rotates anticlockwise to a third angle (alpha 3), a limiting block (311) on the rotation limiting disc (31) is contacted with the other side of the arc-shaped boss (122) to prevent the knob rod (3) from rotating anticlockwise further.
8. The gas valve with long open flame function capable of controlling two flame rows according to claim 1, wherein: be equipped with in valve body (1) and be used for safety solenoid valve (10), safety solenoid valve (10) are located the below of case (2), case (2) still have cavity (23) on, go up the bottom surface of cavity (23) and wear to be equipped with ejector pin (16), the downmovement of ejector pin (16) can trigger safety solenoid valve (10), the cover is equipped with spring (17) that make ejector pin (16) keep the trend of moving up on ejector pin (16), and spring (17) are located cavity (23) on, still be equipped with a wane (18) in valve body (1), the top of ejector pin (16) acts on the free end of wane (18) to make wane (18) can upwards tilt up around one end, and wane (18) of tilt act on knob pole (3) keep the trend of moving up.
9. The gas valve with long open flame function capable of controlling two flame rows according to claim 1, wherein: valve body (1) comprises valve casing (11), valve gap (12), back joint (13), left side joint (14) and right joint (15), valve gap (12) are fixed at valve casing (11) top, and left side joint (14) and right side joint (15) are connected respectively in the left and right sides of valve casing (11), then screw connection is at the rear portion of valve casing (11) back joint (13), set up on back joint (13) on long open fire air vent channel (1 d), first air vent channel (1 b) set up on right joint (15), second air vent channel (1 c) set up on left side joint (14), air vent channel (1 a) set up on the preceding lateral wall of valve casing (11), knob pole (3) wear to establish on valve casing (12) and stretch into in valve casing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810851857.2A CN108679266B (en) | 2018-07-30 | 2018-07-30 | Gas valve capable of controlling two fire rows and having long open fire function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810851857.2A CN108679266B (en) | 2018-07-30 | 2018-07-30 | Gas valve capable of controlling two fire rows and having long open fire function |
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| CN108679266A CN108679266A (en) | 2018-10-19 |
| CN108679266B true CN108679266B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810851857.2A Active CN108679266B (en) | 2018-07-30 | 2018-07-30 | Gas valve capable of controlling two fire rows and having long open fire function |
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| CN (1) | CN108679266B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151575B (en) * | 2021-12-12 | 2022-09-16 | 台州美亚第流体智控有限公司 | Gas valve |
| CN114776837B (en) * | 2022-04-19 | 2024-03-19 | 中山市优盛电器有限公司 | Safety gas valve with double fire outlet channels |
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| Publication number | Publication date |
|---|---|
| CN108679266A (en) | 2018-10-19 |
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