CN110242771B - Temperature control valve with improved structure and long open fire function - Google Patents
Temperature control valve with improved structure and long open fire function Download PDFInfo
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- CN110242771B CN110242771B CN201910604185.XA CN201910604185A CN110242771B CN 110242771 B CN110242771 B CN 110242771B CN 201910604185 A CN201910604185 A CN 201910604185A CN 110242771 B CN110242771 B CN 110242771B
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- valve
- long open
- open fire
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- fire
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- 230000004888 barrier function Effects 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000009423 ventilation Methods 0.000 claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims description 19
- 239000002737 fuel gas Substances 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 7
- 230000008602 contraction Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 14
- 230000033228 biological regulation Effects 0.000 description 6
- 230000001960 triggered effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21B—BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
- A21B3/00—Parts or accessories of ovens
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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
- F16K11/18—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 with separate operating movements for separate closure members
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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
- F16K27/00—Construction of housing; Use of materials therefor
-
- 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
- F16K31/60—Handles
- F16K31/605—Handles for single handle mixing valves
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0207—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor with special plug arrangement, e.g. special shape or built in means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/007—Regulating fuel supply using mechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Mechanically-Actuated Valves (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The temperature control valve with the function of the long open fire and the improved structure comprises a valve body with an air inlet channel, an air outlet channel and the long open fire air outlet channel, wherein a valve core is arranged in the valve body, a ventilation cavity and a fire hole are arranged on the valve core, and a knob rod is arranged on the valve body in a penetrating manner; a valve plate is also arranged in the valve body; the method is characterized in that: a first long open fire auxiliary air passage and a second long open fire auxiliary air passage which are communicated with the long open fire air outlet passage are arranged in the valve body, a long open fire barrier groove and a long open fire auxiliary barrier groove are arranged on the peripheral wall of the valve core, and two ends of the long open fire auxiliary barrier groove are communicated with the ventilation cavity through inner cutting grooves; the rotation of the valve core can determine whether the air inlet channel is communicated with the fire hole or not and whether the air inlet channel is communicated with the second open fire auxiliary air channel through the open fire barrier groove, and the rotation of the valve core can also determine whether the second open fire auxiliary air channel is communicated with the open fire auxiliary barrier groove or not. The temperature control valve does not need to additionally arrange a gear clutch structure, simplifies the structure and greatly reduces the cost.
Description
Technical Field
The invention relates to a gas valve, in particular to a temperature control valve with a long open fire function, which is suitable for a gas oven.
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.
How to design a gas valve for ensuring the ignition efficiency of a fire grate is a technical problem which needs to be solved by the person skilled in the art. For this purpose, the inventor has applied for a Chinese patent application of electric gas valve with the application number of CN201810984517.7 (publication number of CN 109058518A) shortly before. The clutch structure is arranged between the knob rod and the valve core of the gas valve, a driving gear capable of rotating along with the knob rod is sleeved on the knob rod, the knob rod can slide up and down relative to the driving gear, the driving gear has only one section of driving arc-shaped tooth part, and the other section of driving gear is a toothless 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; the driving gear and the driven gear form a clutch structure. The arrangement of the clutch structure directly leads to high cost of the valve, and the clutch gear structure has extremely high requirements on product precision and assembly and lacks competitiveness.
The national requirements on the safety and rationality of temperature control valve products are higher and higher, the existing temperature control valve rotates to any angle position and presses down to trigger an ignition switch, which can cause ignition only when a main air outlet channel is ventilated, air around a fire exhaust has higher gas content, and explosion sound of bang still exists during ignition. For this purpose, the supplier is required to design a knob stem, the ignition switch is not triggered when the knob stem is just pushed down, and the ignition switch is triggered only after the knob stem is rotated for a certain angle (the open fire channel ventilation at the angle position is ensured).
Disclosure of Invention
The technical problem to be solved by the invention is to provide the temperature control valve with the long open fire function, which is more reasonable and simpler in structural design, aiming at the current state of the art, so that when the lower fire is ignited, only the long open fire channel is ventilated, the air outlet channel is not ventilated, namely, the long open fire is firstly ignited and then is turned to the knob rod, and the air outlet channel is ventilated to finish the ignition of the lower fire.
The technical scheme adopted for solving the technical problems is as follows: the temperature control valve with the function of the long open fire comprises a valve body, wherein the valve body is internally provided with an air inlet channel, an air outlet channel and the long open fire air 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 an upward moving trend; a valve plate for controlling the air outlet quantity of the air outlet channel is also arranged in the valve body; the method is characterized in that: the valve plate is positioned below the valve core, the valve core can be driven to move by rotating, a first long open fire auxiliary air passage and a second long open fire auxiliary air passage which are communicated with the long open fire air outlet passage are arranged in the valve body, a long open fire barrier groove and a long open fire auxiliary barrier groove are arranged on the peripheral wall of the valve core, the long open fire barrier groove is blocked from the ventilation cavity, and two ends of the long open fire auxiliary barrier groove are communicated with the ventilation cavity through an inward cutting groove with a downward opening on the side wall of the valve core; the rotation of the valve core can determine whether the air inlet channel is communicated with the fire hole or not and whether the air inlet channel is communicated with the first long open fire auxiliary air channel through the long open fire barrier groove or not, and the rotation of the valve core can also determine whether the second long open fire auxiliary air channel is communicated with the long open fire auxiliary barrier groove or not.
As a specific preferable air path control mode, when the knob rod and the valve core are in an original state, the fire hole is blocked with the air inlet channel, the first long open fire auxiliary air passage is blocked with the long open fire barrier groove, and the second long open fire auxiliary air passage is blocked with the long open fire auxiliary barrier groove; in the process that the knob rod rotates to a first angle from an original state, the valve core can be driven to rotate to a position where the air inlet channel is communicated with the first open fire auxiliary air channel through the open fire barrier groove, and meanwhile, the air inlet channel and the fire hole are in a blocking state; in the process that the knob rod continuously rotates to a second angle from the first angle state, the valve core is driven to rotate to a position where the air inlet channel and the first long open fire auxiliary air channel are blocked, meanwhile, the air inlet channel and the fire hole are in a communication state, and the second long open fire auxiliary air channel and the long open fire auxiliary barrier groove are in a communication state. The gas can only rotate in one direction after starting in the working process, when the gas rotates to a first angle, the gas is communicated with the long-time open fire outlet channel through the long-time open fire barrier groove, the long-time open fire is ventilated and then continuously rotates, the gas is communicated with the second long-time open fire auxiliary air channel through the long-time open fire auxiliary barrier groove, the long-time open fire outlet channel is ensured to be continuous, and meanwhile, the gas inlet channel is communicated with the fire hole, and the main fire is ignited.
Preferably, a valve port is arranged in the middle of the air outlet channel, the valve port is positioned right below the valve core, the valve plate is restrained below the valve port and can move up and down, the opening degree of the valve port can be increased due to the downward movement of the valve plate, and the opening degree of the valve port can be reduced due to the upward movement of the valve plate; in the anticlockwise rotation process of the valve core, the valve core rotates to drive the valve plate to move downwards; in the clockwise rotation process of the valve core, the valve core rotates to drive the valve plate to move upwards. The valve plate is designed to be directly linked with the valve core by the structure, so that the valve plate is convenient to assemble and the product is miniaturized.
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 state that the valve plate closes the valve port, fuel gas from the fire hole can only be communicated with the outlet end of the air outlet passage through the auxiliary air passage. When the temperature of the fire exhaust exceeds a set value, the valve plate can close the valve port, and the air quantity passing through the air outlet channel can only flow out from the outlet end of the air outlet channel through the auxiliary air channel, so that the fire exhaust valve is kept in a minimum fire state.
Preferably, an adjusting flow 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 flow can adjust the fire of the minimum fire of the fire row.
Further improved, the valve plate is fixed in the middle of an adjusting rod, the upper part of the adjusting rod is inserted into an inner cutting groove at the lower end of the valve core, the valve core can move up and down relative to the adjusting rod, the rotation of the valve core can drive the adjusting rod to rotate, a threaded hole with a downward opening is formed in the bottom of the adjusting rod, a threaded column is fixed at the bottom in the valve body, and the threaded column is located below the adjusting rod and is inserted into the threaded hole in a threaded mode. The internal cutting groove of the valve core is connected with the adjusting rod to drive the adjusting rod to rotate, the self structure of the valve core is fully utilized, the structure is simplified, the valve plate is driven to move by the principle of threaded transmission due to the fact that the adjusting rod is rotated to drive the valve plate to move up and down, and the design is more reasonable.
For the temperature control valve has the automatic temperature control adjusting function, preferably, a power component is fixedly arranged at the bottom of the valve body in a penetrating mode, the threaded column is arranged on the power component, the power component can move up and down through thermal expansion and cold contraction, and an auxiliary spring is arranged below the valve plate. The power part is connected with the temperature sensing rod through the heat conducting part, the 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 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 adjustment of the upper and lower positions of the valve plate is realized, the air outlet quantity of the first air outlet channel is controlled, the valve plate cannot be effectively blocked due to the fact that the amplitude of the upward movement of the power part under the thermal expansion effect is not very large, and the valve plate is ensured to be effectively blocked under the action of the auxiliary spring.
Still further improvement, the valve body comprises a valve seat and a valve cover fixed on the valve seat, wherein the inner top surface of the valve cover is provided with a limit groove and an upper limit boss, the inner hole top surface of the valve seat is provided with an ignition groove and a lower limit boss, a rotary limit disc is fixed on the knob rod, and the rotary limit disc is provided with a side-protruding limit block; 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, so that the knob rod can be rotated only by pressing down in the original state; after the knob rod is pressed down at the original position, the lower limiting boss stops the knob rod from rotating clockwise when stopping the limiting block; the limiting block is aligned with the ignition groove in the state that the knob rod rotates to a first angle from the original state, so that the knob rod can be further moved downwards in the position state to finish ignition; and in a gear state between the limiting block and the upper limiting boss, the blocking knob rod further rotates anticlockwise. The design is safer, namely when the valve core rotates from an original state to a first angle position, the downward movement amplitude of the valve rod cannot trigger the ignition switch, and when the valve core reaches the first angle position, the knob rod cannot further rotate due to the arrangement of the ignition groove and the blocking of the lower limiting boss, so that the valve rod can be further moved downward sufficiently, the ignition switch is triggered, ignition can be ensured only when the air outlet channel of the open fire is out, and the safety is better; after ignition is successful, the knob rod moves upwards under the action of the reset spring, the limiting block is dislocated with the lower limiting boss, and the knob rod can further rotate anticlockwise to adjust fire.
For making temperature-sensing valve operation have more security, be equipped with in the above-mentioned valve body and be used for the safety solenoid valve, the safety solenoid valve with the case interval sets up and is located the air inlet channel, wear to be equipped with the ejector pin on the valve body, the downmovement of ejector pin can trigger the safety solenoid valve, the cover is equipped with the spring that makes the ejector pin keep the trend of moving upwards on the ejector pin, the cover is established on the knob pole and is able to drive the board, and the drive board can be along with knob pole axial displacement but the knob pole can rotate around self axis relative drive board. 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.
Compared with the prior art, the invention has the advantages that: through special design of the valve core, namely, a long open fire barrier groove and a long open fire auxiliary barrier groove are arranged on the peripheral wall of the valve core, the long open fire barrier groove is blocked from the ventilation cavity, two ends of the long open fire auxiliary barrier groove are communicated with the ventilation cavity through a downward opening inner cutting groove on the side wall of the valve core, and then the first long open fire auxiliary air passage and the second long open fire auxiliary air passage which are communicated with the long open fire air outlet passage in the valve body are combined; the rotation of the valve core can determine whether the air inlet channel is communicated with the fire hole or not and whether the air inlet channel is communicated with the first long open fire auxiliary air channel through the long open fire barrier groove or not, and the rotation of the valve core can also determine whether the second long open fire auxiliary air channel is communicated with the long open fire auxiliary barrier groove or not. The valve plate can be arranged below the valve core, the valve core can be driven to move by rotation of the valve core, and ignition of the long open fire is realized by communicating the long open fire barrier groove with the first long open fire auxiliary air passage or communicating the long open fire auxiliary barrier groove with the second long open fire auxiliary air passage, so that a gear clutch structure is not required to be additionally arranged, the structure is simplified, and the cost is greatly reduced.
Drawings
FIG. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is a schematic perspective view of a second embodiment of the present invention;
FIG. 3 is a cross-sectional view of an embodiment of the present invention;
FIG. 4 is a cross-sectional view of an embodiment valve of the present invention taken along the central axis of two open flame auxiliary airways;
FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;
FIG. 6 is a schematic perspective view of a valve core in the valve according to the embodiment of the present invention;
FIG. 7 is a schematic diagram showing a three-dimensional structure of a valve core in the valve according to the embodiment of the invention;
FIG. 8 is a schematic perspective view of a valve seat in a valve according to an embodiment of the present invention;
FIG. 9 is a schematic perspective view of a valve cover of the valve according to the embodiment of the present invention;
Fig. 10 is a schematic perspective view of a knob stem with a rotation limiting disc in a valve according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1-10, is a preferred embodiment of the present invention.
The utility model provides a temperature-sensing valve with long open fire function of institutional advancement, includes inside has air inlet channel 1a, air outlet channel 1b and long open fire air outlet channel 1 c's valve body 1, 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 open on ventilation chamber 21 lateral wall has fire hole 24, wears to be equipped with on the valve body 1 is used for driving the rotatory knob pole 3 of case 2, and knob pole 3 keeps the trend of shifting up under reset spring 32 effect; and a valve plate 4 for controlling the air outlet quantity of the air outlet channel 1b is also arranged in the valve body 1. The valve body 1 comprises a valve seat 11 and a valve cover 12 fixed on the valve seat 11, and the knob rod 3 is arranged on the valve cover 12 in a penetrating way and extends into the valve seat 11.
The valve plate 4 is positioned below the valve core 2, the valve plate 4 is driven to move by the rotation energy of the valve core 2, a first long open fire auxiliary air passage 1c1 and a second long open fire auxiliary air passage 1c2 which are communicated with the long open fire air outlet passage 1c are arranged in the valve body 1, a long open fire barrier groove 22 and a long open fire auxiliary barrier groove 23 are arranged on the peripheral wall of the valve core 2, wherein the long open fire barrier groove 22 is blocked with the ventilation cavity 21, and two ends of the long open fire auxiliary barrier groove 23 are communicated with the ventilation cavity 21 through an inward incision groove 231 with a downward opening on the side wall of the valve core 2; the rotation of the valve body 2 determines whether the intake passage 1a communicates with the flame hole 24 and whether the intake passage 1a communicates with the first pilot flame auxiliary air passage 1c1 through the pilot flame barrier groove 22, and the rotation of the valve body 2 also determines whether the second pilot flame auxiliary air passage 1c2 communicates with the pilot flame auxiliary barrier groove 23.
In the original state of the knob rod 3 and the valve body 2, the fire hole 24 is blocked from the intake passage 1a, the first long open flame auxiliary air passage 1c1 is blocked from the long open flame barrier groove 22, and the second long open flame auxiliary air passage 1c2 is blocked from the long open flame auxiliary barrier groove 23.
In the process that the knob rod 3 rotates to a first angle alpha 1 from the original state, the valve core 2 can be driven to rotate to a position where the air inlet channel 1a is communicated with the first open fire auxiliary air channel 1c1 through the open fire barrier groove 22, and meanwhile, the air inlet channel 1a and the fire hole 24 are in a blocking state;
in the process that the knob rod 3 continues to rotate from the first angle alpha 1 state to the second angle alpha 2, the valve core 2 is driven to rotate to a position where the air inlet channel 1a is blocked by the first long open fire auxiliary air channel 1c1, the air inlet channel 1a is communicated with the fire hole 24, and meanwhile, the second long open fire auxiliary air channel 1c2 is communicated with the long open fire auxiliary barrier groove 23.
In the process that the knob rod 3 rotates anticlockwise from the first angle alpha 1 to the second angle alpha 2, the valve plate 4 is driven to move in the direction of increasing the air outlet quantity of the air outlet channel 1 b.
The middle part of the air outlet channel 1b is provided with a valve port 10, the valve port 10 is positioned right below the valve core 2, the valve plate 4 is restrained below the valve port 10 and can move up and down, the valve plate 4 moves down to increase the opening degree of the valve port 10, and the valve plate 4 moves up to decrease the opening degree of the valve port 10; in the anticlockwise rotation process of the valve core 2, the rotation of the valve core 2 drives the valve plate 4 to move downwards; in the clockwise rotation process of the valve core 2, the valve core 2 rotates to drive the valve plate 4 to move upwards.
An auxiliary air passage 1d is arranged in the valve body 1, an air inlet 1d1 of the auxiliary air passage 1d is positioned above the valve port 10, an air outlet 1d2 of the auxiliary air passage 1d is positioned below the valve port 10, and under the state that the valve plate 4 closes the valve port 10, fuel gas from the fire hole 22 can only be communicated with the outlet end of the air outlet passage 1b through the auxiliary air passage 1 d.
An adjusting flow 13 for adjusting the air outlet quantity of the auxiliary air passage 1d is vertically arranged in the auxiliary air passage 1d in a penetrating way. Of course, the regulator 13 may not be provided
The valve plate 4 is fixed in the middle part of a regulation pole 7, and the upper portion of regulation pole 7 inserts in the internal groove of case 2 lower extreme, and the case can reciprocate and the rotation of case can drive the rotation of regulation pole 7 relatively regulation pole 7, and open the bottom of regulation pole 7 has the screw hole 71 of opening down, the bottom of valve body 1 is fixed with screw thread post 61, and screw thread post 61 is located the below of regulation pole 7 and inserts threaded connection in screw hole 71.
The bottom of the valve body 1 is fixedly penetrated with a power component 6, a threaded column 61 is arranged on the power component 6, the power component 6 can move up and down through expansion with heat and contraction with cold, and the structure inside the power component 10 is not shown in the drawing. An auxiliary spring 62 is arranged below the valve plate 4. The driving structure of the power component 6 is connected with the temperature sensing rod 63, the built-in cavity of the power component 6 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 63 is conducted to the temperature sensing oil through the heat conducting component, the power component 6 moves up and down under the pushing of the temperature sensing oil (is heated, expands, moves up and down when the power component 6 is cooled, contracts and moves down when the power component 6) so as to finally realize the adjustment of the up and down positions of the valve plate 4 and control the air outlet quantity of the air outlet channel 1 b. If the power part 6 moves up to push the valve plate 4 to move up, and then the auxiliary spring 62 is combined to close the valve port 10, the fuel gas from the fire hole 22 can only be communicated with the outlet end of the air outlet channel 1b through the auxiliary air channel 1d, so that the fuel gas is at the minimum fire position.
The inner top surface of the valve cover 12 is provided with a limit groove 121 and an upper limit boss 122, the inner hole top surface of the valve seat 11 is provided with an ignition groove 111 and a lower limit boss 112, the knob rod 3 is fixedly provided with a rotation limit disc 31, and the rotation limit disc 31 is provided with a side-protruding limit block 311; 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; after the knob rod 3 is pressed down at the original position, the lower limit boss 112 stops the knob rod 3 from rotating clockwise when stopping the limit block 31; in a state in which the knob stem 3 is rotated from the original state toward the first angle α1, the stopper 311 is aligned with the ignition groove 111 so that the knob stem 3 can be further moved down in this position state to complete ignition; in the gear state between the stopper 311 and the upper stopper boss 122, the blocking knob lever 3 is rotated further counterclockwise.
The valve body 1 is internally provided with a safety electromagnetic valve 8, the safety electromagnetic valve 8 and the valve core 2 are arranged at intervals and are positioned in an air inlet channel 1a, the valve body 1 is provided with a push rod 9 in a penetrating way, the push rod 9 can be downwards moved to trigger the safety electromagnetic valve 8, the push rod 9 is sleeved with a spring 91 which enables the push rod 9 to keep upwards moving trend, the knob rod 3 is sleeved with a driving plate 92, the driving plate 92 can axially move along with the knob rod 3, and the knob rod 3 can rotate around the axis of the knob rod 3 relative to the driving plate 92.
The working principle and the working process of the temperature control 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 driving plate 72 moves downwards along with the knob rod 3, so that the ejector rod 9 moves downwards against the elastic force of the spring 91 to trigger the safety electromagnetic valve 8, and the air source main switch is opened.
The lower limit boss 112 performs a stop on the stop block 31 to stop the knob rod 3 from rotating clockwise, and in the process of rotating the knob rod 3 counterclockwise to a first angle α1, the first angle α1 in the embodiment is 50 degrees, so as to drive the valve core 2 to rotate until the air inlet channel 1a is communicated with the first pilot flame auxiliary air channel 1c1 through the pilot flame barrier groove 22, and meanwhile, the air inlet channel 1a is blocked with the flame hole 24; the fuel gas is discharged through the long open fire air outlet channel 1d after sequentially passing through the air inlet channel 1a, the air vent cavity 21, the long open fire barrier groove 22 and the first long open fire auxiliary air channel 1c1, and the fire hole 24 is still blocked with the air outlet channel 1b, so that the air outlet channel 1b is ensured to be in an air-off state; the ignition switch is not triggered at this time.
When the knob rod 3 is in the first angle alpha 1 position state, the limiting block 311 is aligned with the ignition groove 111, so that the knob rod 3 can be further moved down in the position state to finish ignition, and the long-life flame is ignited.
After the hand is loosened, the knob rod 3 moves upwards under the action of the return spring 32, and the limiting block 311 is dislocated with the lower limiting boss 112, so that the knob rod 3 can be further rotated anticlockwise.
In the process that the knob rod 3 rotates anticlockwise from the first angle alpha 1 to the second angle alpha 2, the valve core 2 is driven to rotate until the air inlet channel 1a is blocked with the first long open fire auxiliary air channel 1c1, the air inlet channel 1a is communicated with the fire hole 24, and meanwhile, the second long open fire auxiliary air channel 1c2 is communicated with the long open fire auxiliary barrier groove 23. The fuel gas is divided into two paths, one path is discharged through the long-open-fire air outlet channel 1d after passing through the air inlet channel 1a, the air cavity 21, the long-open-fire auxiliary barrier groove 23 and the second long-open-fire auxiliary air channel 1c2, and the long-open-fire is still ignited; the other path of fuel gas sequentially passes through the air inlet channel 1a, the air vent cavity 21, the fire hole 22 and the valve port 10 and then is discharged through the air outlet channel 1b, and the air outlet channel 1b can be communicated with a fire row in the fuel gas oven.
Claims (9)
1. The utility model provides a temperature-sensing valve with long open fire function of institutional advancement, includes inside valve body (1) that has inlet channel (1 a), outlet channel (1 b) and long open fire 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 (24), 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; a valve plate (4) for controlling the air outlet quantity of the air outlet channel (1 b) is also arranged in the valve body (1); the method is characterized in that: the valve block (4) is positioned below the valve core (2), the valve block (4) is driven to move by the rotation energy of the valve core (2), a first long open fire auxiliary air passage (1 c 1) and a second long open fire auxiliary air passage (1 c 2) which are communicated with the long open fire air outlet passage (1 c) are arranged in the valve body (1), a long open fire barrier groove (22) and a long open fire auxiliary barrier groove (23) are arranged on the peripheral wall of the valve core (2), wherein the long open fire barrier groove (22) is blocked from the ventilation cavity (21), and two ends of the long open fire auxiliary barrier groove (23) are communicated with the ventilation cavity (21) through an inward cutting groove (231) with a downward opening on the side wall of the valve core (2); the rotation of the valve core (2) can determine whether the air inlet channel (1 a) is communicated with the fire hole (24) or not, and whether the air inlet channel (1 a) is communicated with the first long open fire auxiliary air channel (1 c 1) through the long open fire barrier groove (22), and the rotation of the valve core (2) can also determine whether the second long open fire auxiliary air channel (1 c 2) is communicated with the long open fire auxiliary barrier groove (23) or not;
When the knob rod (3) and the valve core (2) are in an original state, the fire hole (24) is blocked with the air inlet channel (1 a), the first long open fire auxiliary air channel (1 c 1) is blocked with the long open fire barrier groove (22), and the second long open fire auxiliary air channel (1 c 2) is blocked with the long open fire auxiliary barrier groove (23);
In the process that the knob rod (3) rotates from an original state to a first angle (alpha 1), the valve core (2) can be driven to rotate to a position where the air inlet channel (1 a) is communicated with the first open fire auxiliary air channel (1 c 1) through the open fire barrier groove (22), and meanwhile, the air inlet channel (1 a) and the fire hole (24) are in a blocking state;
In the process that the knob rod (3) continues to rotate from the first angle (alpha 1) state to the second angle (alpha 2), the valve core (2) is driven to rotate to a position where the air inlet channel (1 a) is blocked with the first long open fire auxiliary air channel (1 c 1), meanwhile, the air inlet channel (1 a) is communicated with the fire hole (24), and the second long open fire auxiliary air channel (1 c 2) is communicated with the long open fire auxiliary barrier groove (23).
2. The structurally improved temperature-controlled valve with a long open flame function according to claim 1, characterized in that: in the process that the knob rod (3) rotates anticlockwise from the first angle (alpha 1) to the second angle (alpha 2), the valve plate (4) is driven to move towards the direction of increasing the air outlet amount of the air outlet channel (1 b).
3. The structurally improved temperature-controlled valve with the function of long open flame according to claim 2, characterized in that: the middle part of the air outlet channel (1 b) is provided with a valve port (10), the valve port (10) is positioned under the valve core (2), the valve plate (4) is restrained under the valve port (10) and can move up and down, the opening degree of the valve port (10) can be increased by downward movement of the valve plate (4), and the opening degree of the valve port (10) can be reduced by upward movement of the valve plate (4); in the anticlockwise rotation process of the valve core (2), the rotation of the valve core (2) drives the valve plate (4) to move downwards; in the clockwise rotation process of the valve core (2), the valve core (2) rotates to drive the valve plate (4) to move upwards.
4. The structurally improved temperature-controlled valve with the function of long open flame according to claim 3, wherein: an auxiliary air passage (1 d) is arranged in the valve body (1), an air inlet (1 d 1) of the auxiliary air passage (1 d) is positioned above the valve port (10), an air outlet (1 d 2) of the auxiliary air passage (1 d) is positioned below the valve port (10), and under the state that the valve plate (4) is closed off the valve port (10), fuel gas coming out from the fire hole (24) can only be communicated with the outlet end of the air outlet channel (1 b) through the auxiliary air passage (1 d).
5. The structurally improved temperature control valve with a long open flame function according to claim 4, wherein: an adjusting flow (13) for adjusting the air outlet quantity of the auxiliary air passage (1 d) is vertically arranged in the auxiliary air passage (1 d) in a penetrating mode.
6. The structurally improved temperature-controlled valve with the function of long open flame according to claim 3, wherein: the valve block (4) is fixed in the middle part of adjusting pole (7), and the upper portion of adjusting pole (7) inserts in the internal groove of case (2) lower extreme, and the rotation of case can reciprocate and case relative adjusting pole (7) can drive the rotation of adjusting pole (7), and open bottom of adjusting pole (7) has screw hole (71) of opening down, the bottom in valve body (1) is fixed with screw post (61), and screw post (61) are located the below of adjusting pole (7) and insert threaded connection in screw hole (71).
7. The structurally improved temperature control valve with a long open flame function according to claim 6, wherein: the valve is characterized in that a power component (6) is fixedly arranged at the bottom of the valve body (1) in a penetrating mode, a threaded column (61) is arranged on the power component (6), the power component (6) can move up and down through expansion and contraction, and an auxiliary spring (62) is arranged below the valve plate (4).
8. The structurally improved temperature-controlled valve with a long open flame function according to claim 1, characterized in that: the valve body (1) comprises a valve seat (11) and a valve cover (12) fixed on the valve seat (11), a limiting groove (121) and an upper limiting boss (122) are formed in the inner top surface of the valve cover (12), an ignition groove (111) and a lower limiting boss (112) are formed in the inner top surface of the inner hole of the valve seat (11), a rotation limiting disc (31) is fixed on the knob rod (3), and the rotation limiting disc (31) is provided with a laterally protruding limiting block (311); 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); after the knob rod (3) is pressed down at the original position, the lower limit boss (112) stops the knob rod (3) from rotating clockwise when stopping the limit block (311); in a state that the knob rod (3) rotates from an original state to a first angle (alpha 1), the limiting block (311) is aligned with the ignition groove (111), so that the knob rod (3) can be further moved downwards in the position state to finish ignition; and in a gear state of the limiting block (311) and the upper limiting boss (122), the blocking knob rod (3) further rotates anticlockwise.
9. The structurally improved temperature-controlled valve with a long open flame function according to claim 1, characterized in that: be equipped with in valve body (1) and be used for safety solenoid valve (8), safety solenoid valve (8) with case (2) interval sets up and is located air inlet channel (1 a), wear to be equipped with ejector pin (9) on valve body (1), the downmovement of ejector pin (9) can trigger safety solenoid valve (8), the cover is equipped with spring (91) that makes ejector pin (9) keep the trend of shifting up on ejector pin (9), cover on knob pole (3) is established and is can drive board (92), and drive board (92) can be along with knob pole (3) axial displacement but knob pole (3) can rotate around self axis relative drive board (92).
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| CN201910604185.XA CN110242771B (en) | 2019-07-05 | 2019-07-05 | Temperature control valve with improved structure and long open fire function |
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| CN201910604185.XA CN110242771B (en) | 2019-07-05 | 2019-07-05 | Temperature control valve with improved structure and long open fire function |
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| CN110242771B true CN110242771B (en) | 2024-06-25 |
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| CN103216643B (en) * | 2013-04-11 | 2014-11-19 | 宁波朝阳家用燃气具有限公司 | Fuel gas valve for assisting gas supply and ignition |
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| CN105715818B (en) * | 2016-03-15 | 2018-02-02 | 宁波来特燃气具有限公司 | Outer ring fire and the gas valve that interior ring fire synchronously changes can be achieved |
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