CN100520186C - Gas kitchen ranges - Google Patents

Abstract

A gas stove comprises a burner, a flame and/or heat load control device and a bracket, and is characterized in that: the burner has more than three circles of burners, each circle of burners is provided with only one circle of fire holes, each circle of burners corresponds to one injection pipe and one gas nozzle, and at least two circles of burners with the largest burner can move up and down along the vertical direction in a manual or electric mode. The shell or the end cover of the flame and/or heat load control device is provided with a gas inlet hole, the shell is provided with an ignition gas outlet hole corresponding to the ignition gas injection pipe, and more than three combustion gas outlet holes are arranged to correspond to the injection pipe and the burner head of the combustor; the curved surface or one end surface of the rotating shaft is provided with an air inlet section adjusting groove and more than four annular air outlet section adjusting grooves corresponding to the gas outlet holes, and the air inlet section and/or the air outlet section can be adjusted by rotating the rotating shaft. The height of the bracket can be adjusted up and down in an electric or manual mode.

Description

Gas stoves

technical field

The present invention relates to a gas cooker used in the cooking field, in particular to a burner of the gas cooker, a flame and/or thermal load control device and a support for supporting pots, pots, etc. (hereinafter referred to as support).

Background technique

The burner of existing gas cooker generally has two burners (connected as a whole), three circles of fire holes, wherein the flame of the smallest circle of fire holes is controlled by a gas nozzle, and the flame of the other to two circles of fire holes is controlled by another fire hole. Gas nozzle control, a switch controls the amount of gas ejected from the two nozzles to control the size of the flame of the entire burner (some burners have three circles of fire holes, but only one gas nozzle). In addition, the height of the gas stove bracket is fixed. This gas range has the following obvious disadvantages: 1. The fire ring is relatively small (the diameter of the burner is generally 10cm), the number of fire rings is small, and the corresponding optimal heat load is also small. If the heat load is designed to be large when the fire ring is small and the number is small, the nozzle hole of the gas nozzle must be large, and the gas injection speed is high. It is difficult for air to enter the interior of the flame, and it is easy to produce black smoke and carbon monoxide. 2. The adjustment range of heat load and/or flame size is small, which cannot meet cooking needs. When adjusting from the maximum heat load to the minimum heat load, the change of the heat load is not continuous, and many "gears" of small loads cannot be adjusted. Because one gas nozzle corresponds to two larger flames, and the heat load of these two larger flames accounts for about 85% of the heat load of the entire burner. The speed at which the mixed gas with air is ejected out of the burner burner hole is too small, and the phenomenon of tempering and extinguishing occurs. When the flame is small enough to the limit of tempering, it is necessary to continue to reduce the flame, and only the two circles of flame can be extinguished, so it is less than the larger The tempering limit of the large two-circle flame is greater than the thermal load of the other small circle of flame and cannot be adjusted. And when the larger flames of the two circles are transferred close to the tempering limit, because the gas nozzle jet velocity is very low, the entrained air is less, and black smoke and carbon monoxide are easily produced. 3. The burner made of cast iron has a fast heat absorption and heat transfer speed, and the heat is transferred to the surroundings through the burner and its ejector tube, which reduces the thermal efficiency of the stove. 4. Each circle of fire holes is on the same level. When using a pan or pot for cooking or boiling water, the vertical distance between the fire hole and the bottom of the pot or pot (lead a vertical ray from the center of the top of the fire hole to the bottom of the pot or The bottom of the pot intersects, and the distance between the intersection point and the center of the top of the fire hole (referred to as the vertical distance between the fire hole and the bottom of the pot or pot) is equal, which can achieve better combustion and heat transfer effects; when using a spherical or other shaped curved pot , the vertical distance between each fire hole and the pot is different, the vertical distance between the fire hole of the innermost circle of flames and the pot is the smallest, and the vertical distance between the fire holes of the outermost circle of flames and the pot is the largest, then the flame burning condition and The heat transfer effect is not good, and the heat is not the same everywhere in the pot, so the temperature is not the same, which affects cooking. 5. The height of the support of the existing gas stove is fixed, which is also unfavorable for cooking. When the flame is large, the height of the bracket is suitable; but when the flame is small, the distance between the flame and the pot or pot is too large, the heat transfer effect is poor, and the heat loss is large; when using a pan, the bracket needs to be short, but when using a curved pan Higher brackets are required. Obviously, the fixed height of support does not adapt to the needs of cooking work.

Contents of the invention

The task of the present invention is to overcome the disadvantages of the existing gas stoves, such as small heat load, small adjustment range of flame and/or heat load, easy off-fire, tempering, generation of black smoke and carbon monoxide, and large heat loss, and provide large heat load, Flame and/or heat load adjustment range is large, no flameout, no tempering, no black smoke and carbon monoxide, and burners that reduce heat loss, flame and/or heat load control devices, and height-adjustable brackets.

The technical scheme that the present invention adopts has four kinds, and the first kind is:

A gas stove, including a burner, a flame and heat load control device and a bracket, is characterized in that:

The burning head of the burner has more than three circles, and there is a gap between each circle to facilitate the secondary air to enter the flame to participate in the combustion. There is only one circle of fire holes on each circle of burning head. The burning head is composed of a mixture frame, an air guide plate and a fire hole ring. The fire hole ring is made of refractory and heat-insulating materials. Each ring of burners corresponds to an ejector tube and a gas nozzle. Among the burners with more than three rings, at least two of the largest burners can be operated manually or electrically. way to move up and down in the vertical direction;

The flame and heat load control device is mainly composed of a casing, an end cover and a rotating shaft. The rotating shaft is installed in the casing and the end cover. The gap between the rotating shaft and the casing and the end cover is less than 0.05mm, and there is lubricating oil in the gap; the casing or A gas inlet hole is set on the end cover; an ignition gas outlet hole is set on the casing corresponding to the ignition gas injection pipe, and more than three combustion gas outlet holes are arranged corresponding to the burner injection pipe and the burner head; on the curved surface of the rotating shaft Or one end face is provided with an air intake cross-section adjustment groove corresponding to the gas inlet hole and communicated with the central hole of the rotating shaft, and more than four annular air outlet cross-section adjustment grooves corresponding to each gas outlet hole are also provided, and each annular air outlet of the shaft The cross-section adjustment groove communicates with the central hole of the shaft;

A hand sensor is installed on the flame and thermal load control device. The hand sensor is composed of a shell, countersunk bolts, springs and steel balls. The air outlet closing position groove and the slight fire position groove are set on the rotating shaft. When the steel ball falls in a certain groove , it means that the corresponding air outlet is completely closed, the flame on the corresponding burner is extinguished, or it is in a low-fire state;

The height of the stand can be adjusted up and down electrically or manually.

Propose additional technical characteristic to above technical scheme below:

1. A gas stove, characterized in that:

Among the burners with more than three circles, there are at least two circles of the largest burner. The intake pipe of the largest burner communicates with the ejector pipe through the adjustment sleeve; The matching part of the adjusting sleeve is the same threaded pipe as the upper thread of the adjusting sleeve, and the matching part of the injection pipe and the adjusting sleeve is the same threaded pipe as the lower part of the adjusting sleeve; when the upper or lower part of the inner hole of the adjusting sleeve is a light hole, The outer wall of the matching intake pipe or ejector pipe is a smooth pipe; the helical gear of the first adjustment sleeve and the helical gear of the second adjustment sleeve are meshed with a worm; when there are three adjustment sleeves, the third adjustment sleeve The helical gear of the adjusting sleeve directly meshes with the helical gear of the second adjusting sleeve; the worm is installed in the positioning device; the pitch of the inner hole thread of the first adjusting sleeve is greater than the pitch of the inner hole thread of the second adjusting sleeve, and the second adjusting sleeve The thread pitch of the inner hole thread of the sleeve is greater than the pitch of the inner hole thread of the third adjusting sleeve, and the burning head that cannot move up and down is cast as one with the ejector tube;

The support is composed of ordinary support, vertical support rod, ring support rod, horizontal support rod, main rod, support adjustment sleeve, worm and its shaft sleeve, support foot, and limit frame. The outside of the support adjustment sleeve is a helical gear, and the middle of the support adjustment sleeve The thread on the upper part of the hole is opposite to the thread on the lower part of the hole, the thread of the main rod is the same as the upper thread of the bracket adjustment sleeve hole and matches with it, the thread of the bracket foot is the same as the lower thread of the bracket adjustment sleeve hole and When the upper or lower part of the hole of the bracket adjustment sleeve is a light hole, the matching main rod or bracket foot is a bare rod; the worm meshes with the helical gear of the bracket adjustment sleeve; the ordinary bracket is embedded in the vertical rod in the groove; a cross strut is inserted in the limit frame.

2. A gas stove, characterized in that:

An air inlet cross-section adjustment groove set on the curved surface of the rotating shaft or one end surface can keep the air inlet cross-section constant according to the air inlet cross-sectional area → the air inlet cross-sectional area can be quickly reduced to reduce the flame and heat load of all burners from the maximum to half The following → the intake cross-sectional area decreases slowly → the intake cross-sectional area decreases to the minimum flame state → the regular change of all closures; the curved surface of the rotating shaft is set to correspond to the ignition gas outlet hole and the combustion gas outlet hole and connect to the center of the rotating shaft through the communication hole There are more than four annular gas outlet cross-section adjustment grooves with different lengths connected by holes. The adjustment groove corresponding to the ignition gas outlet hole is the shortest, the adjustment groove indirectly corresponding to the largest burner is the second shortest, and the adjustment groove corresponding to the smallest burner is the shortest. Long, the longest adjustment slot has a micro-flame gas outlet. The starting time of each outlet section adjustment slot and the corresponding outlet hole conduction is the same, but the time to reduce the ventilation section and until it is closed is not the same.

3. A gas stove, characterized in that:

An air inlet cross-section adjustment groove set on the curved surface of the rotating shaft or one end surface can make the air inlet cross-section change according to the law of always fully open→rapidly reduce and close; the curved surface of the rotating shaft is set to correspond to the ignition gas outlet hole and the combustion gas outlet hole And through the communication hole and the central hole of the rotating shaft, there are more than four annular gas outlet section adjustment grooves with different lengths. The adjustment groove corresponding to the ignition gas outlet hole is the shortest, and the adjustment groove indirectly corresponding to the largest burner is the second shortest. The adjustment slot indirectly corresponding to the smallest burner is the longest, and there is the smallest gas outlet hole next to the longest adjustment slot. The starting time of the conduction of each outlet section adjustment slot and the air outlet hole is the same, but the time to reduce the ventilation section and close it is different. , That is to say, the gas stove controls the flame and heat load according to the rule of reducing the flame by one circle until it is turned off → reducing the flame by another circle until it is turned off from the first circle of burning head to the smallest circle of burning head.

4. A gas stove, characterized in that:

An air inlet cross-section adjustment groove provided on the curved surface of the rotating shaft or one end face is divided into two parts. The first part can keep the air inlet cross-section constant according to the air inlet cross-sectional area → the air inlet cross-sectional area can be quickly reduced to make the flame and heat of all burners The load drops from the maximum to less than half → the intake cross-sectional area decreases slowly → the intake cross-section area decreases to a slight fire state → the law of all closures; the second part can make the intake cross-section quickly transition from small to maximum → always Maximum→rapidly decreasing and closing regular changes; two sets of outlet section adjustment grooves are set on the curved surface of the rotating shaft, and the first group is provided with more than four through communication holes corresponding to the ignition gas outlet hole and the combustion gas outlet hole to communicate with the central hole of the rotating shaft The gas outlet section adjustment slots of the four or more adjustment slots communicate with the air outlet at the same starting time, and the closing time is different, and the lengths of the four outlet section adjustment slots are different. Among them, the ignition gas outlet section adjustment slot is the shortest, which indirectly corresponds to the largest burner The second shortest adjustment slot, the longest adjustment slot corresponding to the minimum burner, and the longest adjustment slot has a small flame gas outlet; the second group is provided with more than three through communication holes corresponding to the combustion gas outlet and the rotary The air outlet cross-section adjustment groove connected to the center hole of the shaft, the starting time of the three or more adjustment grooves communicating with the air outlet hole is different, the closing time is the same, and the lengths of the three air outlet section adjustment grooves are different, the adjustment groove corresponding to the largest burner is the shortest, and the The adjustment groove corresponding to the smallest burner is the longest; the distance between the second longest adjustment groove and the first group of low-fire gas outlet holes is appropriate, that is, the burner can naturally transition from the first group of low-fire state to the second group of adjustment grooves Control the state of flames and heat loads.

5. A gas stove, characterized in that:

An air inlet cross-section adjustment groove provided on the curved surface of the rotating shaft or one end face is divided into two parts. The first part can keep the air inlet cross-section constant according to the air inlet cross-sectional area → the air inlet cross-sectional area can be quickly reduced to make the flame and heat of all burners The load drops from the maximum to less than half → the intake cross-sectional area decreases slowly → the intake cross-section area decreases to a slight fire state → the law of all closures; the second part can make the intake cross-section quickly transition from small to maximum → always Maximum→rapidly decreasing and closing regular changes; two sets of outlet section adjustment grooves are set on the curved surface of the rotating shaft, and the first group is provided with more than four through communication holes corresponding to the ignition gas outlet hole and the combustion gas outlet hole to communicate with the central hole of the rotating shaft The gas outlet section adjustment slots of the four or more adjustment slots communicate with the air outlet at the same starting time, and the closing time is different, and the lengths of the four outlet section adjustment slots are different. Among them, the ignition gas outlet section adjustment slot is the shortest, which indirectly corresponds to the largest burner The second shortest adjustment slot, the longest adjustment slot corresponding to the minimum burner, and the longest adjustment slot has a small flame gas outlet; the second group is provided with more than three through communication holes corresponding to the combustion gas outlet and the rotary The air outlet cross-section adjustment groove connected to the center hole of the shaft, the starting time of the three or more adjustment grooves communicating with the air outlet hole is the same, the closing time is different, and the lengths of the three air outlet section adjustment grooves are different, the adjustment groove corresponding to the largest burner is the shortest, and the The adjustment groove corresponding to the smallest burner is the longest, and there is the smallest gas outlet hole next to the longest adjustment groove; The state of low fire in the first group naturally transitions to the state of the second group of regulating grooves controlling flame and heat load.

The second technical scheme that the present invention adopts is:

A gas stove, including a burner, a flame and heat load control device and a bracket, is characterized in that:

The burning head of the burner has more than three circles, and there is a gap between each circle to facilitate the secondary air to enter the flame to participate in the combustion. There is only one circle of fire holes on each circle of burning head. The burning head is composed of a mixture frame, an air guide plate and a fire hole ring. The fire hole ring is made of refractory and heat-insulating materials. Each ring of burners corresponds to an ejector tube and a gas nozzle. Among the burners with more than three rings, at least two of the largest burners can be operated manually or electrically. way to move up and down in the vertical direction;

The flame and heat load control device is mainly composed of a casing, an end cover, a gas nozzle, an adjusting plunger and an air inlet hole. The air inlet hole communicates with the air outlet hole of the first part. The plunger indirectly corresponding to the burner head is the longest, and the plunger indirectly corresponding to the minimum burning head is the shortest. By moving and adjusting the plunger, the air intake section of each nozzle can be changed successively;

The height of the stand can be adjusted up and down electrically or manually.

The third technical scheme adopted by the present invention is:

A gas stove, including a burner, a flame and heat load control device and a bracket, is characterized in that:

The burning head of the burner has more than three circles, and there is a gap between each circle to facilitate the secondary air to enter the flame to participate in the combustion. There is only one circle of fire holes on each circle of burning head. The burning head is composed of a mixture frame, an air guide plate and a fire hole ring. The fire hole ring is made of refractory and heat-insulating materials, and each ring of burners corresponds to an ejector tube and a gas nozzle; the burner has two sets of burners, and one set of burners is arranged in a concave shape, that is, the one with the largest diameter The position of the top surface of the burner is the highest, the position of the top surface of the burner with the second diameter is next, and the position of the top surface of the burner with the smallest diameter is the lowest. The top surfaces of each burner are parallel to each other. Constructs the profile of a surface, either spherical or otherwise.

The flame and heat load control device is mainly composed of a casing, an end cover and a rotating shaft. The rotating shaft is installed in the casing and the end cover. The gap between the rotating shaft and the casing and the end cover is less than 0.05mm, and there is lubricating oil in the gap; the casing or A gas inlet hole is set on the end cover; an ignition gas outlet hole is set on the casing corresponding to the ignition gas injection pipe, and more than three combustion gas outlet holes are arranged corresponding to the burner injection pipe and the burner head; on the curved surface of the rotating shaft Or one end face is provided with an air intake cross-section adjustment groove corresponding to the gas inlet hole and communicated with the central hole of the rotating shaft, and more than four annular air outlet cross-section adjustment grooves corresponding to each gas outlet hole are also provided, and each annular air outlet of the shaft The cross-section adjustment groove communicates with the central hole of the shaft;

A hand sensor is installed on the flame and thermal load control device. The hand sensor is composed of a shell, countersunk bolts, springs and steel balls. The air outlet closing position groove and the slight fire position groove are set on the rotating shaft. When the steel ball falls in a certain groove , it means that the corresponding air outlet is completely closed, the flame on the corresponding burner is extinguished, or it is in a low-fire state;

The height of the stand can be adjusted up and down electrically or manually.

The 4th technical scheme that the present invention adopts is:

A gas stove, including a burner, a flame and heat load control device and a bracket, is characterized in that:

The burning head of the burner has more than three circles, and there is a gap between each circle to facilitate the secondary air to enter the flame to participate in the combustion. There is only one circle of fire holes on each circle of burning head. The burning head is composed of a mixture frame, an air guide plate and a fire hole ring. The fire hole ring is made of fire-resistant and heat-insulating materials. Each ring of burners corresponds to an ejector tube and an adjustable nozzle. Among the burners with more than three rings, at least two of the largest burners can be operated manually or electrically. Move up and down in the vertical direction;

The adjustable nozzle includes an air nozzle and an adjusting plate with a curved end surface. The adjusting plate is covered on the end surface of the outlet of the air outlet of the air nozzle. When the adjusting plate is moved, the air outlet section of the air nozzle can be changed to adjust the air injection volume of the air nozzle per unit time. Thereby adjusting the heat load of the gas cooker;

The height of the stand can be adjusted up and down electrically or manually.

Positive significance: 1. The adjustment of flame and/or heat load can meet the needs of cooking work. It can basically realize continuous adjustment from the maximum heat load to the minimum heat load; the shape of the flame can also be selected, that is, there can be three shapes of flames under the same heat load. For example, you can first reduce the flame on each burner head, and then turn down one from the largest burner → turn off this one...until only the smallest flame on the smallest burner remains; you can also start from the largest burner Turn down one → turn off this one... until only the smallest flame on the smallest burner remains; you can also turn down the flames of each circle at the same time until they are closed at the same time. All three methods can be adjusted from the maximum heat load to the minimum heat load, but the shape of the flame on the burner is different during the adjustment process, so as to adapt to different cooking needs. 2. Thermal efficiency has been improved. The fire hole ring is made of refractory heat insulation material, its thermal conductivity is much lower than that of metal materials, so the loss of heat transfer and heat dissipation is reduced; some burners and brackets can be adjusted up and down, which can adapt to the change of flame and/or heat load and the pot Or a change in the shape of the pot to facilitate better heat transfer to the pot or pot. When using a curved pot, at least two circles of the largest burner can be adjusted upwards, so that each burner is arranged in a concave shape, so that the vertical distance between each fire hole and the bottom of the pot is equal; In the horizontal plane (based on the top surface of the burner). Turn the stand on high when using a curved pan or on a high flame; on low when using a saucepan or on a low flame. 3. The combustion condition is improved, which is beneficial to improve the thermal efficiency. The gas cooker on the market controls about 85% heat load by a main nozzle at present, will reach very big heat load then nozzle hole diameter is big, must reduce jet speed when adjusting small flame, because nozzle hole diameter is constant. If the heat load of the nozzle is adjusted from 100% to 30%, the gas velocity is also reduced to 30% (by reducing the air pressure to reduce the gas velocity), at this time, the gas injection velocity is too small, and the ability to entrain air is poor, resulting in poor combustion Fully, carbon monoxide and black smoke will be produced, and at the same time, if the mixture of gas and air ejected from the fire hole is too low (lower than the combustion speed), it will backfire and extinguish. However, if the main nozzle is changed from one to three, the diameter of the nozzle becomes smaller, and the gas injection speed decreases slightly, but the total gas injection volume remains unchanged. When the flame is turned down, turn off the nozzles of the two circles of the burner, leaving only one circle of nozzles with the smaller burner, and the heat load of the three circles can be adjusted from 100% to below 30%, but the circle of the smaller burner The gas velocity of the nozzle remains unchanged, so the flame combustion status in the figure remains unchanged, and there will be no carbon monoxide and black smoke, and no backfire. If the gas velocity of this nozzle is appropriately reduced by a part, it will also burn normally. In short, under the same heat load conditions, the combustion conditions of large nozzle diameter and small gas velocity are worse than those of small nozzle diameter and atmospheric velocity. Therefore, designing more circles of burners and several gas nozzles is conducive to improving the combustion conditions of medium and small flames, and is also conducive to improving thermal efficiency.

Description of drawings.

Fig. 1 is a layout diagram of the main components of the gas stove;

Fig. 2 is a burner structure diagram of a gas stove burner;

Fig. 3 is a schematic diagram of the direction A of Fig. 2;

Fig. 4 is the A-A sectional view of Fig. 3;

Fig. 5 is the BB sectional view of Fig. 3;

Fig. 6 is a structural diagram of the burner gas guide plate;

Fig. 7 is the A-A sectional view of Fig. 6;

Fig. 8 is another structural schematic diagram of the burner;

Fig. 9 is a structural diagram of the injector tube of the burner;

Fig. 10 is a first structural schematic diagram of adjusting the position of the burner in the vertical direction;

Fig. 11 is a second structural schematic diagram of adjusting the vertical position of the burner;

Fig. 12 is a schematic structural view of four-circle burners arranged on the skeleton;

Fig. 13 is a schematic diagram of the positioning device of the worm adjusting the burner position;

Figure 14 is a top view of Figure 13;

Figure 15 is an outline view of the first type of flame and/or thermal load control device;

Fig. 16 is the A-A sectional view of Fig. 15;

Fig. 17 is the BB sectional view of Fig. 15;

Fig. 18 is a CC sectional view of Fig. 15;

Fig. 19 is a right end-facing view (enlarged) of the first structure of the rotating shaft of Fig. 15;

Fig. 20 is an expanded view of the rotating shaft curved surface of Fig. 15;

Fig. 21 is the second structure view (enlarged) of the right end face of the rotating shaft of Fig. 15;

Fig. 22 is the view (enlarged) of the right end of the third structure of the rotating shaft of Fig. 15;

Fig. 23 is an expanded view of the third structural curved surface of the rotating shaft in Fig. 15;

Fig. 24 is a structural diagram when the steel ball of the hand sensor falls in a positioning groove;

Fig. 25 is a structure diagram of micro-fire air outlet;

Fig. 26 is a second arrangement diagram of the feel groove on the rotating shaft of Fig. 15;

Fig. 27 is the view (enlarged) of the right end of the fourth structure of the rotating shaft of Fig. 15;

Fig. 28 is an expanded view of the fourth structural curved surface of the rotating shaft in Fig. 15;

Figure 29 is an outline view of the second type of flame and/or thermal load control device;

Fig. 30 is a first expanded view of the rotary shaft intake section adjustment slot of Fig. 29;

Fig. 31 is an expanded view of the second structure of the adjusting groove of the air intake section of the rotating shaft in Fig. 29;

Fig. 32 is an expanded view of the third structure of the adjusting groove of the air intake section of the rotating shaft in Fig. 29;

Fig. 33 is the first structural diagram of the third type flame and/or thermal load control device;

Fig. 34 is the gas nozzle structure of Fig. 33 and the air intake section structure diagram of the regulating nozzle

Fig. 35 is a schematic diagram of the method for adjusting the flame in Fig. 33;

Figure 36 is a front view of the support plate (see Figure 35 for the top view);

Fig. 37 is a second structure diagram of the third type flame and/or thermal load control device;

Fig. 38 is a structural diagram of the first and second types of flame and/or thermal load control device drive and electronic ignition;

Figure 39 is a view of the lower end of the driven shaft in Figure 38;

Figure 40 is a front view of a fork for electronic ignition (see Figure 38 for a top view);

Figure 41 is a view from the direction A of the main casing in Figure 38;

Figure 42 is a view of the upper end of the drive shaft in Figure 38;

Figure 43 is a front view of the insurance fork in Figure 38 (see Figure 38 for the top view);

Figure 44 is a top view of the adjustable bracket;

Figure 45 is a front view of the adjustment part of the adjustable bracket;

Fig. 46 is a diagram of the installation structure of the positioning frame in Fig. 44;

Fig. 47 is the A-A sectional view of Fig. 44;

Figure 48 is a schematic diagram of a common bracket structure;

Figure 49 is a layout diagram of the concave burner;

Figure 50 is a structural diagram of a single burner and ejector tube of a concave burner;

Figure 51 is a view from the direction A of Figure 50;

Figure 52 is a front view of the adjustable nozzle;

Figure 53 is a top view of the adjustable nozzle.

The main components in the figure are: 1. The first round of burning head; 2. The fire hole; 3. The second round of burning head; 4. The third round of burning head; 5. The fourth round of burning head; 6. The burning head bracket ; 7. The position of the vertical pole of the adjustable support; 8. The ejector tube; 9. The adjustment sleeve; 10. The fastening bolt; 11. The gas nozzle; 12. The hand sensor; 13. The flame and/or thermal load control device ; 14, gas pipe; 15, worm; 16, flame and/or thermal load control device bracket; 17, worm positioning device; 18, ignition gas injection tube; Electronic ignition part; 20, bevel gear; 21, electronic ignition needle; 22, injection tube bracket; 23, injection tube bead; 24, screw; 25, positioning rod; , air guide plate; 28, fire hole ring; 29, mixed gas intake pipe; 30, worm positioning sleeve; 31, bottom plate; 32, bottom plate installation hole; 33, flame and/or thermal load control device shell; 34, rotating shaft 35, ignition gas outlet; 36, combustion gas outlet; 37, end cover; 38, sealing ring; 39, steel ball; 40, spring; 41, countersunk bolt; 42, hand sensor shell; 43 gas inlet ; 44, the first air intake cross-section adjustment groove; 45, the communicating hole; 46, the center hole; 47, the ignition gas outlet gas cross-section adjustment groove; 48, the gas outlet cross-section adjustment groove corresponding to the first circle of burning head; The air outlet section adjustment slot corresponding to the second round of burner; 50, the outlet section adjustment slot corresponding to the third round of burner; 51, the outlet section adjustment slot corresponding to the fourth round of burner; 52, the micro fire air outlet; 53, Ignition gas closing groove; 54. The first circle burner flame close groove; 55. The second circle burner flame close groove; 56. The third circle burner flame close groove; 57. Micro fire groove; 58. All flame close groove ; 59. The second type of air intake cross-section adjustment groove; 60. The third type of air intake cross-section adjustment groove; 61. Expansion hole; 65. The sixth type of air intake section adjustment groove; 66. The seventh type of air intake section adjustment groove; 67. The adjustable gas nozzle; 68. The second type of end cover; 69. The connecting pipe; 70. The first part of the shell; 71. The first part of the gas inlet hole; 72. The ignition gas outlet; 73. The first part of the rotating shaft; 74. The spring; 75. The ignition gas adjustment rod; 76. The second part of the shell; 77. Nozzle nozzle; 78, nozzle shell; 79, nozzle air inlet; 80, adjusting plunger; 81, connecting plate; 82, positioning plate; 83, adjusting screw; 84, adjusting handle; 85, guide sleeve; 86 , driven shaft; 87, snap ring; 88, retaining ring; 89, drive device cover; 90, electronic ignition device; 91, shift fork; 92, drive device shell; 93, insurance ring; 94, drive shaft; 95, handle; 96, vertical support rod; 97, groove; 98, ring support rod; 99, horizontal support rod; 100, main rod; 101, limit frame; 102, support foot; Mounting position; 104, common bracket; 105, stepped bracket; 106, spring mounting bracket; 107, adjusting plate; 108, bracket with threaded hole; 109, adjusting bolt; 110, gas injection direction; 111, bracket Adjustment sleeve.

Detailed ways

Described in Fig. 1 is the overall structure diagram of the important components of the gas stove. In the figure, there are several fire holes on each circle of the burning head, and the diameter of the fire holes is about 1.5-3mm. The thicker the fire hole circle, the larger the fire hole diameter. Among the four burners, the first to third circle burners can move up and down, that is, twisting the worm 15 can drive the adjustment sleeve with helical gear or worm gear connected with the first circle burner 1 and the second circle burner 3 to rotate , to push the intake pipe matched with the internal thread of the adjustment sleeve to rise or fall, thereby pushing the burner to move up or down. The working principle of the up and down movement is shown in Figure 10 to Figure 11 for details. When the worm rotates, the helical gear that links to each other with the second circle burner directly drives the third helical gear to rotate. The pitch of the internal thread of the adjusting sleeve corresponding to the first round of burning > the pitch of the internal thread of the adjusting sleeve corresponding to the second round of burning > the pitch of the internal thread of the adjusting sleeve corresponding to the third round of burning, so the first The rising speed of the burning head in the first circle > the rising speed of the burning head in the second circle > the rising speed of the burning head in the third circle. The outer diameter of the largest circle of burning head should be greater than 15cm, and the burning head is too small to meet the needs of cooking. For a burner designed for a specific gas (such as liquefied petroleum gas), the fire hole can be designed larger to allow the flame to burn in suspension, that is, the flame leaves the fire hole and burns against the bottom of the pot. This reduces the amount of heat absorbed by the burner. Each circle of burner corresponds to an injection tube, and each injection tube corresponds to a gas nozzle. The flame control device can reduce the flame or heat load of each circle at the same time → continue to reduce the first circle of flame until the first circle is closed → continue Reduce the second circle of flame until it is closed → continue to reduce the third circle of flame until it is closed → continue to reduce the fourth circle of flame until it is in a low-flame state until it is closed. One circle of flame → turn off the first circle of flame → turn off the second circle of flame → turn off the second circle of flame... turn off the fourth circle of flame until all the flames are turned off to control the shape and shape of the flame on each burner heat load condition. When the above two devices rotate in opposite directions, the flames on each burner can be reduced and closed simultaneously. The above two control methods can also be combined, and the flame can be controlled by the first method or the second method in one control device. Each bracket in the figure is connected with the main bracket (not shown in the figure), and the connection relationship between the flame control device and the bracket is omitted. In order to make this figure clear, the adjustable bracket only draws the position diagram of the vertical strut, and the adjustable bracket and its working principle are shown in Figure 44 to Figure 48 for details. Let the vertical arrangement of the main components of the cooker be arranged in the order from top to bottom: the highest part is the ordinary bracket embedded in the adjustable bracket, the second is the burner, and the third is the adjustment sleeve and worm to adjust the position of the burner , the fourth is the ejector tube, flame and/or thermal load control device; the fifth is the adjustment sleeve and worm screw for adjusting the position of the main rod of the adjustable bracket, and the lowest is the bracket foot.

Fig. 2 to Fig. 9 are schematic diagrams of the structure of the burner head (and the injection pipe). The fire hole ring made of refractory and heat insulating material is embedded on the burner frame, and the gap is sealed with toothpaste, etc., and the fire hole ring is There is only one ring of fire holes, and the thickness of the fire hole ring is generally 5-10mm. The air guide plate is located in the middle of the air mixture cavity on the upper part of the intake pipe, and the axis of the intake pipe intersects with the center of the air guide plate. Its working principle is: the mixture of gas and air (hereinafter referred to as the mixture) flowing into the intake pipe from the ejector pipe flows into the space formed by the mixture frame and the air guide plate, then flows to both sides, flows through the air guide plate and then Each is divided into two streams, one stream flows into the upper part of the air guide plate, and then flows out from each fire hole, and generally continues to circulate, and flows out from the fire holes. The function of the air guide plate is to make the air flow in the mixing frame evenly distributed, so that the speed of the mixed gas flowing out from each fire hole is similar. If there is no air guide plate, the speed of the mixed gas flowing out from the fire hole facing the intake pipe is the fastest, and the speed of the mixed gas flowing out from the fire hole farthest from the intake pipe is the slowest, and the uneven gas speed leads to combustion Abnormal, when the speed of the gas nozzle is at the maximum (at the time of the maximum heat load), some fire holes will be out of fire, and when the heat load is reduced to a certain level (within the required range), some fire holes will be backfired. This is a typical structural diagram of a burner that can move up and down. This stove has one to two burners and does not need to move up and down, then the burner and the injection tube are made as a whole, and its structural diagram is shown in Fig. 50 to Fig. 51. Injection tubes (including those with and without adjusting sleeves) generally have only one elbow, and sometimes there are two elbows for layout needs, that is, one bend in the horizontal plane of the axis of the injection tube, and one bend in the vertical plane. inside a corner. The positioning rod is inserted into the corresponding positioning hole of the bracket, and its function is to prevent the burner from rotating when the burner moves up and down.

In the structure described in Figure 10, the outside of the adjustment sleeve is a helical gear, the inner hole is a thread, and the screw thread on the upper half is opposite to the screw thread on the lower half. When the worm is turned, the helical gear rotates, and the adjustment sleeve and the guide The injection pipe and the intake pipe have relative rotation. Since the upper and lower threads have opposite directions, when the adjustment sleeve descends or rises relative to the ejection pipe, the intake pipe also descends or rises relative to the ejection pipe, so that the burner head can move up and down. . When using a frying pan, each burner falls on the carriage, and their horizontal positions are the same. When using a curved surface pot, the first to third rounds (at least the first to second rounds) of the burner can be adjusted upwards to facilitate cooking. Support, rely on the positioning rod and the positioning hole to prevent it from rotating.

Figure 11 is the second structure diagram of the burning head moving up and down. The difference from Figure 10 is that the helical gear can be changed to a worm gear; the lower part of the adjustment sleeve is a light hole, and the upper part of the outer wall of the injection tube is also a light pipe, and there is no up and down movement when the adjustment sleeve rotates To move, only the intake pipe moves up and down. Here the worm gear can be replaced by a helical gear. When adopting the scheme of Fig. 11, only two circles of burning heads can be adjusted, because the worm gear can no longer drive the helical gear or the worm gear of the third burning head, it can be changed into helical gears.

Figure 12 is a structural diagram of the burner placed on the burner bracket. When it is flat, the bottom of each burner is supported by the burner bracket. When the first, second, and third turns of the burner rise, there is a certain distance between the bottom of the burner and the burner bracket. slide in the hole.

Fig. 13 and Fig. 14 describe the positioning structure diagram of the worm. The worm is installed in two bushings and can only rotate and cannot move along the axial direction. Two axle sleeves are installed on the fixed plate, and there are two mounting holes 2 on the fixed plate, and available bolts can pass through the two mounting holes, and the fixed plate is locked on the bracket 22 .

15 to 20 are the first structure diagrams of the first type of flame and/or heat load control device, and the structure diagrams take the control of four burners as an example. In the figure, the connection method between the casing and the bracket of the flame control device is abbreviated. A metal plate can be welded on the casing (this metal plate can also be cast as one with the casing), drill holes on the metal plate, and then use a screw to connect the plate to the bracket. connected together. The shell of the device has four combustion gas outlet holes, one ignition gas outlet hole, and one gas inlet hole on the end cover. There are five corresponding air outlet section adjusting grooves on the curved surface of the rotating shaft, and each adjusting groove communicates with the central hole of the rotating shaft through a communication hole; one end of the rotating shaft has an air inlet section adjusting groove, which communicates with the central hole. When there is a communication hole of an air outlet cross-section adjustment groove facing the corresponding air outlet, the communication holes of other adjustment grooves are also facing the corresponding air outlet. At this time, the overlapping area of the air intake cross-section adjustment groove and the air intake hole is the largest, that is, the ventilation cross-section is the largest. Before ignition, the axis of rotation is not located at the position in the figure, at that time the air intake hole and each air outlet hole are all closed, that is, the place where each adjustment slot does not overlap with each hole. After turning 90°, it is located at the position in the figure. At this time, the overlapping area of each regulating groove and each corresponding air inlet or air outlet is the largest. While rotating the rotating shaft, the fork of the driving part pulls the striking rod of the electronic ignition, compresses the spring, and when the rotation reaches 90°, the fork is separated from the striking rod, and the striking rod hits the piezoelectric element to generate electric energy, which makes the ignition needle generate sparks , At the same time, each air outlet is conducted, the ignition gas is ignited by the ignition needle, the flame is sprayed on the burner, and each burner is ignited. If the pulse ignition device is used, the spark is generated when the power is switched on, then no ignition gas is needed, the ignition gas outlet section adjustment groove can be canceled on the rotating shaft, and the ignition gas outlet hole can be canceled on the shell. When adopting the percussion type electronic ignition device, the ignition needle can also be installed on the side of the big burner, so that the gas part can not be ignited like this. After the air intake hole is conducted, the gas enters the air intake section adjustment groove from the air intake hole, then enters the central hole, then enters each communication hole, then enters each adjustment groove, and then enters each air outlet hole. When being in the position in the figure, the flame is the largest, and the ignition gas is burning. After continuing to rotate at a certain angle, the ignition gas is closed, and at this moment the steel ball of the hand sensor falls in the corresponding positioning groove 53. Continue to rotate, the air intake cross-section adjustment groove will reduce the intake cross-section sharply. When the reduction reaches a certain level, the flames on each burner will start to decrease until it is less than half. The steel ball of the device then falls in the corresponding positioning groove 54. When the steel ball falls in the positioning groove 55, the second ring burner is extinguished; when the steel ball falls in the positioning groove 56, the third ring burner is extinguished; when the steel ball falls in the positioning groove 57, the fourth ring There is only the tiniest ring of fire on the burning head. Continue to rotate then flame all goes out again, at this moment each inlet and outlet air hole is all closed, and steel ball falls in the positioning groove 58. During the rotation of the rotating shaft, the air intake section first decreases sharply, then decreases slowly, and finally closes. The characteristics of this control device to adjust the flame are: first reduce all the flames at the same time → continue to reduce the flame on the first circle of burner until it is closed → continue to reduce the flame on the second circle of burner until it is closed → continue to reduce the third Turn the flame on the burning head until it is closed → continue to reduce the flame on the burning head for the fourth circle to a low flame state → turn off all of them. The part surrounded by abcdefga in Fig. 19 is the air intake cross-section adjustment groove, 43 is the relative position of the air intake hole and the air intake cross-section adjustment groove when the rotating shaft rotates, the change of the air intake cross-section can be seen from the relative position change, the change It is consistent with the change of the gas outlet section in Figure 20 and the flame requirements.

Fig. 21 is a slot-directed view of the rotary shaft intake section adjustment of the second structure of the first type flame and/or heat load control device, and the other parts of this control device are the same as those of the first type of the same type. The characteristics of its flame adjustment are: the air intake section adjustment groove basically does not play the role of flame adjustment, but only plays the role of maximally conducting the air intake hole and closing the gas, and each air outlet section adjustment groove independently adjusts the gas on the corresponding burner. flame. The flame adjustment process is as follows: turn down the flame on the first burner until it is off → turn down the flame on the second turn until it is off → turn down the flame on the third turn until it is off → turn down the fourth turn Burn the flame on the head until it simmers until it turns off. When the first circle of flame is turned off, the second circle of flame can be kept unchanged or partly reduced, depending on the relative length of the adjustment groove, and the relative length can be designed according to needs. Wherein the part surrounded by abcdefga is the air intake section adjustment groove, and 43 is the relative position of the air intake hole to the air intake section adjustment groove when the rotating shaft rotates.

Fig. 22 to Fig. 23 are the diagrams of the air intake section adjustment groove on the end surface of the rotating shaft and the expanded view of the air outlet section adjusting groove on the curved surface of the rotating shaft in the third structure of the second type of flame and/or thermal load control device. This structure consists of two The adjustment method is combined, the upper part is the first type of the first type, and the lower part has four outlet adjustment slots, and the two methods can be naturally transitioned. After using the first type of adjustment groove, turn it to a low-fire state, and then continue to twist the rotating shaft, the flame on the fourth round of burning head can reach the maximum, and then continue to twist the rotating shaft, the third round of burning head will start to catch fire and burn. Gradually go to max, and just like that, keep twisting the axis of rotation until the first turn of the burner fires and goes to max. Then continue to twist the rotating shaft, and the fires on each burner will become smaller at the same time until they are all extinguished. If the flame on the burner head is not extinguished, and the rotating shaft is reversely twisted, the function of the lower part of the regulating groove is the same as that of the first type of second flame and/or heat load control device. The rotation axis can rotate 360° forward and 360° reversely, but it can only rotate forward when electronic ignition is required to ignite. If pulse ignition is used, it can be rotated regardless of forward or reverse rotation. The part surrounded by abcdefghijka among Fig. 22 is the intake cross-section regulating groove.

The shell, countersunk screw and spring of the hand sensor in Figure 24 are not shown (see Figure 16 for details). When the steel ball is stuck in a certain positioning groove, the corresponding flame (flame on the burner or ignition gas) is extinguished , or in a low-fire state. At this time, when twisting the rotating shaft, use a little more force to make the steel ball slide out of the positioning groove, so the hand can feel it.

Fig. 25 is a schematic diagram (enlargement) of the micro-flame gas hole. The gas in the center hole of the rotating shaft first enters the micro-flame gas hole 62, then enters the expansion hole 61, and then enters the gas outlet. The purpose of designing the expansion hole is to prevent the lubricating oil on the rotating shaft from entering the micro-flame gas hole to block the hole.

Fig. 26 is another arrangement diagram of positioning grooves on the rotating shaft. Since the distance between the grooves is too small when arranged on a line, it is not convenient for processing and adjusting the flame, so they are arranged in two rows. Correspondingly, there should be two hand sensors, and the rotation axis should be lengthened appropriately.

27 to 28 are diagrams of the air intake section adjustment groove on the end face of the rotating shaft of the fourth structure of the first type of flame and/or heat load control device and expanded views of the outlet section adjustment groove on the curved surface of the rotating shaft. This rotating shaft is composed of two sets of flame and/or heat load regulating slots, the upper part is exactly the same as the first type of the first type, and the lower part is exactly the same as the second type of the first type. The first flame can spontaneously ignite and transition to the second flame. That is to say, when the first flame reaches the low-flame state, and then continue to twist the rotating shaft, the gas outlet regulating groove of the second flame will be completely turned on, and the flame will reach the maximum. It will not burn, and it will burn to a certain extent, but the twist angle from conduction to the maximum flame state is very small. Continue to twist the rotating shaft again, the adjustment principle is the same as the second one. Two flame control methods are designed on one control device, which is more suitable for cooking needs. This rotation axis can also be reversed. When the second part is reversed, it can turn from the smallest flame to the largest flame. When the reverse is continued, the flames on each burner will be reduced at the same time. If the reverse is continued, the largest three circles of flames will be extinguished at the same time. But enter the first part of the low-flame state of the flame, continue to reverse, and gradually start to ignite flames from small circles to large circles on each burner, and increase the flame at the same time until the maximum flame state, and then continue to reverse, the flames are all reduced at the same time until close at the same time. The first type of flame and/or heat load control device The first, second, and third structures can all reverse the rotation axis to adjust the flame, and details will not be repeated here. The part surrounded by abcdefghija among Fig. 27 is the air intake cross-section regulating groove.

Figure 29 to Figure 32 are the structural diagrams of the second type of flame and/or heat load control device, in which Figure 29 is an outline view, the air intake hole of this structure is opened on the curved surface of the shell, and the air intake section adjustment groove is also opened on the rotation axis On the surface, other parts are the same as the first type of various structures. Figures 30 to 32 illustrate the expanded views of three kinds of inlet cross-section adjustment grooves of the rotating shaft of this structure, wherein Figure 30 and Figure 31 can be used in conjunction with the outlet cross-section adjustment groove in Figure 20, and Figure 32 can be used in conjunction with Figure 23.

Figures 33 to 36 are the first structural diagrams of the third type of flame and/or heat load control device. The device is divided into two parts to adjust the flame. The first part is basically the same as the current switch, except that there are only two gas outlets, one connected with the second Some are connected, and the other is the ignition gas outlet. Switches on the market generally have two combustion gas outlets (corresponding to the two ejector tubes) and an ignition gas outlet. The second part is mainly composed of gas nozzle, plunger, casing and end cover. Its working principle is: the first part can adjust the gas inlet section and the gas outlet section by twisting the rotating shaft, thereby adjusting the gas velocity entering the second part casing. , it can increase or decrease the jet speed of each gas nozzle at the same time, so that the flames on each burner can be adjusted up or down at the same time. The second part changes the air intake section entering the nozzle by moving and adjusting the position of the plunger in the gas nozzle, thereby adjusting the jet speed of the nozzle and adjusting the size of the flame. In the figure, four plungers are connected as a whole, twisting the handle can make the plungers move forward or backward at the same time. The lengths of the adjustment plungers are different, the plunger indirectly corresponding to the maximum burner (the plunger corresponds to the gas nozzle, and the gas nozzle corresponds to the injection pipe and the burner) is the longest, and the plunger indirectly corresponding to the minimum burner The plug is the shortest. By moving and adjusting the plunger, the air intake section of each nozzle is changed successively, thereby changing the jet speed of the nozzle to change the heat load of each burner. You can turn down the first turn → close the first turn → turn down the second turn →Closing the second circle...Adjust the flame according to the law. While adjusting and closing the first circle, the second circle can be slightly reduced or not, determined according to the relationship between the length of the two plungers; two adjustments Each of the methods can be used independently or simultaneously. The positioning plate is composed of upper and lower parts, and its function is to make the handle rotate in its hole without axial movement. The connection method between the positioning plate and the main frame of the gas stove is omitted. Utilize existing electronic ignition switch (slightly improved) among Fig. 33, wherein the part of driving rotating shaft is not drawn.

Fig. 37 is a second structure diagram of the third type of flame and/or thermal load control device, which is the same as the first structure of the first structure of the same kind, except that the structure of the second part is different. Its working principle is exactly the same as that of the first one of the same kind, except that the shapes of the gas nozzle and the shell have been changed, so no more details are given here. In addition, the cooperation between the plunger and the gas nozzle in the above two structures can be a smooth hole, a polished rod, or a screw thread. When using thread, the adjustment structure is different, so I won't go into details here, because the general principle is to adjust the air intake section of the jet nozzle by advancing and retreating of the plunger, and there are many specific implementation methods.

Fig. 38 to Fig. 43 are structural diagrams of driving parts of the first and second types of flame and/or thermal load control devices, which are basically the same as the relevant parts of the existing electronic ignition switch. Its working principle is: move the handle upwards, compress the spring, and push the safety ring away from the groove at the same time, the handle can turn, and drive the driven shaft to rotate, thereby driving the rotating shaft to rotate through the bevel gear. At the same time, the driven shaft drives the shift fork to rotate, and the shift fork moves the impact rod (not shown in the figure) of the electronic ignition device to compress the spring (not shown in the figure). When the driven shaft rotates about 90°, the shift fork and the impact The rod is detached, and the impact rod hits the pressure-sensitive battery under the action of elastic force, so that the spark needle generates sparks. The difference between this device and the existing electronic ignition switch is that: the device can rotate forward and reverse at any angle, while the existing device can only rotate forward and reverse within 180°; the device is connected with the flame and/or heat load control device through a bevel gear , the driven shaft and the rotating shaft of the existing electronic ignition switch are the same shaft. The device can also be designed in addition, that is, the driven shaft and the rotating shaft are combined into one, and the driving shaft and the axis of the rotating shaft are on a straight line, and the driven shaft and the bevel gear can be omitted, but the rotation of the twist handle different from existing technologies. It should be noted that the understanding of the existing electronic ignition switch comes from the disassembly and analysis of the real object, and no relevant documents have been found, so the names of its components were created by the inventor. This type of drive is only suitable for flame and/or thermal load control devices of the first and second classes. The first part of the third type of flame and/or heat load control device has the driving and ignition device.

Figures 44 to 48 are structural diagrams of the adjustable bracket. The principle of adjusting the bracket up and down is the same as the principle of adjusting the upper and lower positions of the burner in Figures 10 to 11. The screw thread of the main bracket of the adjustable bracket is opposite to the screw thread of the bracket foot. The upper thread of the inner hole of the adjustment sleeve is the same as the thread of the main bracket, and the lower thread is the same as the thread of the bracket foot. The upper or lower part of the adjustment sleeve can be a light hole, and the matched main support or support foot is a light rod. But the lower end of the polished rod should have a shaft shoulder to support the adjusting sleeve (referring to Figure 11). When the lower part of the adjusting sleeve hole is a light hole, the helical gear can be replaced with a worm gear. Turn the worm to push the adjustment sleeve to rotate, but the main bracket and the bracket feet do not rotate, so the adjustment sleeve, the main bracket and the bracket feet have axial relative movement, and the main bracket can move up and down. Because the upper and lower threads of the adjustment sleeve rotate in opposite directions, the adjustment speed is very fast. The function of the positioning frame is to control the stroke of the main bracket to ensure that the main bracket does not break away from the adjustment sleeve; the second is to prevent the bracket from rotating. The simple and easy support of Fig. 48 (being the support on the market at present) is embedded in the groove of vertical strut.

Fig. 49 to Fig. 51 are schematic diagrams of a concave burner, which is composed of four (taking four as an example) separate burning heads, each ring of burning heads has an ejector tube and only one ring of fire holes. The burners are arranged in a concave shape, that is, the top surface of the burner with the largest diameter is the highest, the top surface of the burner with the second diameter is next, the top surface of the burner with the third diameter is next, and the top surface of the burner with the smallest diameter is the lowest. The top surfaces of the burners are parallel to each other, and each burner is placed on a stepped bracket. The midpoints of the top surfaces of the fire holes of each burner together form a curved surface contour. The curved surface is generally a spherical surface, and it can be other curved surfaces. adapt. The injection pipe has two sections, one section is the horizontal direction, the other section is the vertical aspect, and the junction of the two sections is an elbow (connected as a whole). The injection pipe in the horizontal direction can also be designed with elbows according to specific conditions, that is, the injection pipe can have two elbows, and the centerlines of the two elbows are not in the same plane, but in two mutually perpendicular planes. Generally, the centerlines of the horizontal section of each injection tube should be located on the same horizontal plane, but the top surfaces of the burners are not in the same horizontal plane, so the lengths of the vertical sections of the injection tubes are different. The section in the vertical direction of the shoot tube is the longest. It is also possible to design the vertical length of each injection tube to be the same length, so that the axis of the flame and/or thermal load control device forms a certain angle with the horizontal plane. Because the heat load of each burner is different, the thickness of the ejector tube of each burner is different. The β angle in the figure is an arbitrary angle, which is determined according to actual needs. The length of the injection tube in the horizontal direction and the length in the vertical direction are determined according to actual needs. The part (end face) of the ejector pipe in contact with the gas nozzle is identical with the existing ejector pipe, and can refer to the end face of the ejector pipe in Fig. 6 among Chinese patent application publication 02138920.9. The internal structure of the burner is exactly the same as that of the burner shown in Fig. 2 to Fig. 7 . This concave burner is suitable for cooking with a curved pan on top. The current gas stove is generally a double-burner gas stove, so one side can be designed as a concave burner suitable for curved pots, and the other side can be designed as a flat burner suitable for pans and pots. Flame and/or thermal load control devices for both burners can use all of the control devices described above.

Figure 52 to Figure 53 are schematic diagrams of the structure of the adjustable nozzle. The adjustable nozzle is mainly composed of a nozzle, an adjusting plate, a spring, a bracket for installing the spring, a bracket with threaded holes and an adjusting bolt. Compressed by spring. When the bolt is twisted, the adjusting plate moves left or right, so that the jet section of the nozzle is reduced or increased, thereby adjusting the heat load of the gas stove.

Claims (9)

1, a kind of gas-cooker comprises burner, flame and thermic load control device and support, it is characterized in that:

The burning head of burner has more than three circles, the gapped auxiliary air of being convenient to enters participation burning in the flame between every circle, every circle burns and has only a circle fire hole on the head, burning head is made up of gaseous mixture framework, aeroscopic plate and fire hole circle, the fire hole circle is made by fire-resistant heat insulating material, every circle burns a corresponding induction tunnel and corresponding combustion gas nozzle, has at least the maximum burning heads of two circles vertically to move up and down by manual or electronic mode in the burning head more than three circles;

Flame and thermic load control device mainly are made up of shell, end cap and rotating shaft, and rotating shaft is installed in shell and the end cap, and there is lubricating oil in the gap between rotating shaft and shell and the end cap less than 0.05mm in the gap; A combustion gas air admission hole is set on shell or the end cap; It is corresponding with igniting combustion gas induction tunnel that an igniting combustion gas venthole is set on the shell, and it is corresponding with the induction tunnel and the burning head of burner that three above combustion gas ventholes are set; Corresponding with a combustion gas air admission hole air inlet cross section regulating tank that communicates with the rotating shaft center hole is set on the rotating shaft curved surface or on the end face, four or more the annular corresponding with each the combustion gas venthole cross section regulating tank of giving vent to anger also is set, and this each annular cross section regulating tank of giving vent to anger communicates with this centre bore;

The feel device is installed on flame and the thermic load control device, this feel device is made up of shell, countersunk bolt, spring and steel ball, each venthole closed position groove and low baking temperature location groove are set on the rotating shaft, when steel ball drops in certain groove, the corresponding gas outlet of expression is thoroughly closed, fray-out of flame on the corresponding burning head, or be in the low baking temperature state;

The height of support can be by electronic or manual mode up-down adjustment.

2, according to the described gas-cooker of claim 1, it is characterized in that:

Have at least the air inlet pipe of the maximum burning head of two circles to communicate with induction tunnel in the burning head more than three circles by regulating sleeve; The regulating sleeve outside is a helical gear, regulating sleeve endoporus top is opposite with the thread rotary orientation of bottom, air inlet pipe is and the identical screwed pipe of regulating sleeve top screw thread that induction tunnel is the screwed pipe identical with the regulating sleeve lower thread with the position that regulating sleeve matches with the position that regulating sleeve matches; When regulating sleeve endoporus top or bottom were unthreaded hole, air inlet pipe with matching or induction tunnel outer wall were light pipe; The helical gear of the helical gear of first regulating sleeve and second regulating sleeve is meshed with a worm screw; When three regulating sleeves, the direct helical gear with second regulating sleeve of the helical gear of the 3rd regulating sleeve meshes; Worm screw is installed in the positioner; The pitch of first regulating sleeve inner hole thread is greater than the pitch of second regulating sleeve inner hole thread, and the pitch of second regulating sleeve inner hole thread is greater than the pitch of the 3rd regulating sleeve inner hole thread, and burning head and its induction tunnel that can not move up and down are cast as one;

Support is made up of ordinary stent, perpendicular pole, ring pole, cross support arm, mobile jib, bracket adjustment cover, worm screw and axle sleeve thereof, stent foot, position-limited rack, bracket adjustment cover outside is a helical gear, in the middle of the bracket adjustment cover is the hole, the screw thread on top, hole is opposite with the thread rotary orientation of bottom, hole, the top screw thread of the screw thread of mobile jib and bracket adjustment trepanning is identical and match with it, and the lower thread of the screw thread of stent foot and bracket adjustment trepanning is identical and match with it; When the top, hole of bracket adjustment cover or bottom were unthreaded hole, mobile jib then with matching or stent foot were polished rod; Worm screw is meshed with the helical gear of bracket adjustment cover; Ordinary stent is embedded in the groove of perpendicular pole; A cross support arm is inserted in the position-limited rack.

3, according to the described gas-cooker of claim 1, it is characterized in that:

On the rotating shaft curved surface or an air inlet cross section regulating tank that is provided with on the end face can make the air inlet cross section according to the air inlet sectional area constant → the air inlet sectional area reduce to fast make all flames that burn head and thermic load from maximum drop to below half → the air inlet sectional area reduces more slowly → the air inlet sectional area reduces to the rule variation of minimum flame status → Close All; Be provided with on the rotating shaft curved surface and light a fire combustion gas venthole and the combustion gas venthole is corresponding and four above length communicating with the rotating shaft center hole by intercommunicating pore have nothing in common with each other the annular cross section regulating tank of giving vent to anger, the regulating tank corresponding with igniting combustion gas venthole is the shortest, burn the corresponding indirectly regulating tank of head second weak point with maximum, the regulating tank corresponding with minimum burning head is the longest, there is low baking temperature combustion gas venthole on the longest regulating tank side, the cross section regulating tank of respectively giving vent to anger is identical with the starting time of corresponding venthole conducting, but reduces ventilation cross section and inequality until the time of closing.

4, according to the described gas-cooker of claim 1, it is characterized in that:

On the rotating shaft curved surface or an air inlet cross section regulating tank that is provided with on the end face air inlet cross section is changed according to the standard-sized sheet always → reduce rapidly and the rule of closing; Be provided with on the rotating shaft curved surface and light a fire combustion gas venthole and the combustion gas venthole is corresponding and four above length communicating with the rotating shaft center hole by intercommunicating pore have nothing in common with each other the annular cross section regulating tank of giving vent to anger, the regulating tank corresponding with igniting combustion gas venthole is the shortest, burn the corresponding indirectly regulating tank of head second weak point with maximum, the longest with the regulating tank that minimum burning head is corresponding indirectly, the other combustion gas venthole that minimum is arranged of the longest regulating tank, the cross section regulating tank of respectively giving vent to anger is identical with the starting time of venthole conducting, but reduce ventilation cross section and inequality until the time of closing, promptly gas-cooker burns head to a minimum circle from first lap and burns head and enclose flame up to closing according to turning a circle flame down up to closing → turn down one ... rule control flame and thermic load.

5, according to the described gas-cooker of claim 1, it is characterized in that:

On the rotating shaft curved surface or an air inlet cross section regulating tank that is provided with on the end face divide two parts, first can make the air inlet cross section according to the air inlet sectional area constant → the air inlet sectional area reduce to fast make all flames that burn head and thermic load from maximum drop to below half → the air inlet sectional area reduces more slowly → the air inlet sectional area reduces to the rule variation of low baking temperature state → Close All; Second portion can make the air inlet cross section according to from less carry out the transition to rapidly maximum → always maximum → reduce rapidly and the rule of closing changes; Two groups of cross section regulating tanks of giving vent to anger are set on the rotating shaft curved surface, first group is provided with more than four corresponding with igniting combustion gas venthole and the combustion gas venthole cross section regulating tank of giving vent to anger that intercommunicating pore communicates with the rotating shaft center hole that passes through, four above regulating tanks are identical with the starting time that venthole communicates, the shut-in time difference, and the cross section regulating tank length of four giving vent to anger has nothing in common with each other, the combustion gas of wherein the lighting a fire cross section regulating tank of giving vent to anger is the shortest, burn the corresponding indirectly regulating tank of head second weak point with maximum, the regulating tank corresponding with minimum burning head is the longest, and there is low baking temperature combustion gas venthole on the longest regulating tank side; Second group is provided with and correspondingly with the combustion gas venthole more than three passes through the cross section regulating tank of giving vent to anger that intercommunicating pore communicates with the rotating shaft center hole, three above regulating tanks are different with the starting time that venthole communicates, shut-in time is identical, and the cross section regulating tank length of three giving vent to anger has nothing in common with each other, the regulating tank corresponding with maximum burning head is the shortest, and the regulating tank corresponding with minimum burning head is the longest; The low baking temperature combustion gas venthole distance of second group of regulating tank the longest and first group suitably, promptly burner can carry out the transition to the state of second group of regulating tank control flame and thermic load naturally from first group of low baking temperature state.

6, according to the described gas-cooker of claim 1, it is characterized in that:

On the rotating shaft curved surface or an air inlet cross section regulating tank that is provided with on the end face divide two parts, first can make the air inlet cross section according to the air inlet sectional area constant → the air inlet sectional area reduce to fast make all flames that burn head and thermic load from maximum drop to below half → the air inlet sectional area reduces more slowly → the air inlet sectional area reduces to the rule variation of low baking temperature state → Close All; Second portion can make the air inlet cross section according to from less carry out the transition to rapidly maximum → always maximum → reduce rapidly and the rule of closing changes; Two groups of cross section regulating tanks of giving vent to anger are set on the rotating shaft curved surface, first group is provided with more than four corresponding with igniting combustion gas venthole and the combustion gas venthole cross section regulating tank of giving vent to anger that intercommunicating pore communicates with the rotating shaft center hole that passes through, four above regulating tanks are identical with the starting time that venthole communicates, the shut-in time difference, and the cross section regulating tank length of four giving vent to anger has nothing in common with each other, the combustion gas of wherein the lighting a fire cross section regulating tank of giving vent to anger is the shortest, burn the corresponding indirectly regulating tank of head second weak point with maximum, the regulating tank corresponding with minimum burning head is the longest, and there is low baking temperature combustion gas venthole on the longest regulating tank side; Second group is provided with and correspondingly with the combustion gas venthole more than three passes through the cross section regulating tank of giving vent to anger that intercommunicating pore communicates with the rotating shaft center hole, three above regulating tanks are identical with the starting time that venthole communicates, the shut-in time difference, and the cross section regulating tank length of three giving vent to anger has nothing in common with each other, the regulating tank corresponding with maximum burning head is the shortest, the regulating tank corresponding with minimum burning head is the longest, and there is minimum combustion gas venthole on the longest regulating tank side; The low baking temperature combustion gas venthole distance of second group of regulating tank the longest and first group suitably, promptly burner can carry out the transition to the state of second group of regulating tank control flame and thermic load naturally from first group of low baking temperature state.

7, a kind of gas-cooker comprises burner, flame and thermic load control device and support, it is characterized in that:

The burning head of burner has more than three circles, the gapped auxiliary air of being convenient to enters participation burning in the flame between every circle, every circle burns and has only a circle fire hole on the head, burning head is made up of gaseous mixture framework, aeroscopic plate and fire hole circle, the fire hole circle is made by fire-resistant heat insulating material, every circle burns a corresponding induction tunnel and corresponding combustion gas nozzle, has at least the maximum burning heads of two circles vertically to move up and down by manual or electronic mode in the burning head more than three circles;

Flame and thermic load control device mainly are made up of shell, end cap, combustion gas nozzle, pilot plunger and air admission hole, this air admission hole communicates with the venthole of first, the length of pilot plunger has nothing in common with each other, the longest with the plunger that maximum burning head is corresponding indirectly, the shortest with the plunger that minimum burning head is corresponding indirectly, by mobile pilot plunger, successively change each nozzle air inlet cross section;

The height of support can be by electronic or manual mode up-down adjustment.

8, a kind of gas-cooker comprises burner, flame and thermic load control device and support, it is characterized in that:

The burning head of burner has more than three circles, the gapped auxiliary air of being convenient to enters participation burning in the flame between every circle, every circle burns and has only a circle fire hole on the head, burning head is made up of gaseous mixture framework, aeroscopic plate and fire hole circle, the fire hole circle is made by fire-resistant heat insulating material, and every circle burns the corresponding induction tunnel of head and corresponding combustion gas nozzle; Burner has two groups to burn head, wherein there is one group of burning head to be arranged in matrix, the face position, the burning crown that is the diameter maximum is the highest, take second place in the face position, the burning crown of diameter second, the face position, the burning crown of diameter minimum is minimum, the end face that respectively burns head is parallel to each other, and three enclose curved surface profile of the common formation of end face mid point of each fire hole of above burning head, and this curved surface is sphere or other curved surfaces.

Flame and thermic load control device mainly are made up of shell, end cap and rotating shaft, and rotating shaft is installed in shell and the end cap, and the gap between rotating shaft and shell and the end cap is less than 0.05mm; Lubricating oil is arranged in the gap; A combustion gas air admission hole is set on shell or the end cap; It is corresponding with igniting combustion gas induction tunnel that an igniting combustion gas venthole is set on the shell, and it is corresponding with the induction tunnel and the burning head of burner that three above combustion gas ventholes are set; Corresponding with a combustion gas air admission hole air inlet cross section regulating tank that communicates with the rotating shaft center hole is set on the rotating shaft curved surface or on the end face, four or more the annular corresponding with each the combustion gas venthole cross section regulating tank of giving vent to anger also is set, and this each annular cross section regulating tank of giving vent to anger communicates with this centre bore;

The feel device is installed on flame and the thermic load control device, this feel device is made up of shell, countersunk bolt, spring and steel ball, each venthole closed position groove and low baking temperature location groove are set on the rotating shaft, when steel ball drops in certain groove, the corresponding gas outlet of expression is thoroughly closed, fray-out of flame on the corresponding burning head, or be in the low baking temperature state;

The height of support can be by electronic or manual mode up-down adjustment.

9, a kind of gas-cooker comprises burner, flame and thermic load control device and support, it is characterized in that:

The burning head of burner has more than three circles, the gapped auxiliary air of being convenient to enters participation burning in the flame between every circle, every circle burns and has only a circle fire hole on the head, burning head is made up of gaseous mixture framework, aeroscopic plate and fire hole circle, the fire hole circle is made by fire-resistant heat insulating material, every circle burns a corresponding induction tunnel and corresponding adjustable nozzle, has at least the maximum burning heads of two circles vertically to move up and down by manual or electronic mode in the burning head more than three circles;

Adjustable nozzle comprises that an air nozzle and an end face are the adjustable plate of curved surface, cover this adjustable plate on the air nozzle venthole exit end face, when mobile adjustable plate, can change fumarole and give vent to anger the cross section regulating the jet amount of air nozzle unit interval, thus the thermic load of regulating gas-cooker;

The height of support can be by electronic or manual mode up-down adjustment.

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