CN217004462U - Burner for gas stove - Google Patents

Abstract

The utility model relates to a burner for a gas stove, which comprises a base, a central gas channel and an inner ring fire cover arranged on the central gas channel, and is characterized in that: the periphery of the inner ring gas mixing chamber is also provided with a shunting chamber, the shunting chamber is provided with at least two fire distributing holes and a shunting port communicated with the central gas channel, a switch element capable of opening and closing the shunting port is also arranged in the shunting chamber, a gas supplementing cavity is formed between the inner ring gas mixing chamber and the shunting chamber, and a moving part is arranged in the central gas channel, compared with the prior art, the utility model has the advantages that: when the pan was placed on central gas passageway, the moving part received pressure to move down, avoided the inner ring fire lid by the pressure cooker and because of the excessive fire phenomenon that takes off that causes of central passage internal pressure, in addition, can also separate into two relatively independent spaces with the secondary tonifying qi passageway when the moving part moves down, avoid the mutual "striving for" of secondary air between inner ring air mixing chamber and the flow distribution chamber.

Description

Burner for gas stove

Technical Field

The utility model relates to the field of gas cookers, in particular to a burner for a gas cooker, which can prevent fire dropping.

Background

Present big desk-top stir-fry kitchen, middling pressure stir-fry kitchen often need open earlier gas, and the work such as just can normally burn, fry is opened air feed system at last to the reuse firing rod or burning torch, and the operation is very inconvenient to during the interval of adding condiments, sabot and repeated operation, the stove fire is still burning constantly, and oil gas fuel's waste is very big, and air feed system also does not stop work, causes the waste of electricity. The applicant applies Chinese utility model patent No. ZL202021025751.6 (publication No. CN213237521U) to disclose a burner for gas range, which comprises a base, a central channel with an upward opening and a cylindrical structure, the central channel is arranged at the central part of the base, and an outer ring gas channel is arranged at the peripheral part of the central channel of the base, the outer ring gas channel is arranged on the outer ring gas channel and forms an outer ring gas mixing chamber, the burner also comprises a moving part arranged in the central channel and a peripheral shielding part for shielding the main fire part, the moving part can be directly triggered under the action of placing the pan on the moving part, thereby exposing the main fire part, although the burner can adapt to a sharp-bottom pan and a sharp-bottom pan while closing the outer ring fire by lifting the pan, and keep a proper distance with the inner ring fire cover, avoid pressing the fire, but when keeping with the inner ring fire lid and keeping a suitable distance, can increase the mixed gas pressure that the inner ring fire lid corresponds in the gas mixing chamber, thereby cause the flame overlength that the inner ring fire lid formed, if the speed of the gas mixing that sprays through the fire hole is greater than a predetermined speed, then can take place to produce the flame that leaves of flame outside the fire hole, along with the gas outlet air current continues to increase, then can take place to take off a fire, in addition, owing to the injection effect of burning hot gas flow during the combustor burning, interior, outer fire lid all can be through mixing the chamber entrainment primary air and secondary air, in order to prevent that the interior, outer loop can influence each other when the entrainment secondary air, realize the abundant burning of interior, outer loop simultaneously, still need to make further improvement.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the present invention is to provide a burner for gas cookers, especially for sharp-bottomed cookers, which can avoid the occurrence of misfiring.

The second technical problem to be solved by the present invention is to provide a burner for a gas stove, which can effectively avoid the mutual influence during the secondary air supplement, in view of the above-mentioned current state of the art.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: this a combustor for gas-cooker, the combustor includes:

a base;

the central gas channel is of a cylindrical structure with an upward opening and is arranged at the central part of the base;

the inner ring fire cover is arranged above the central gas channel, forms an inner ring gas mixing chamber and is provided with a fire outlet part communicated with the inner ring gas mixing chamber;

the method is characterized in that:

the flow dividing chamber is positioned at the periphery of the inner ring gas mixing chamber and is provided with at least two fire dividing holes and a flow dividing port communicated with the central gas channel;

a switching member provided in the diverging chamber and capable of opening and closing the diverging port;

the air supplementing cavity is formed by the interval between the inner ring air mixing chamber and the shunting chamber;

the base is also provided with a plurality of radial secondary air supplementing channels at intervals along the circumferential direction, and the secondary air supplementing channels are used for communicating the air supplementing cavity with the outside; and

the movable part is at least partially arranged in the central gas channel and comprises a shielding part for shielding the fire outlet part and a separating part connected with the shielding part and located in the gas supplementing cavity, the movable part can be directly triggered to move under the action of placing the movable part on a cooker, so that the gas in the central gas channel can be shunted to the shunting chamber while the gas inlet area of the fire outlet part is changed, the secondary gas supplementing channel is separated into two relatively independent spaces, and the two relatively independent spaces are respectively communicated with the fire outlet part area of the inner ring gas mixing chamber and the fire shunting hole area of the shunting chamber.

In order to realize the connection between the shielding portion and the separating portion in the moving member, preferably, the separating portion includes a straight section parallel to the central gas passage and a horizontal separating section located at the lower end of the straight section and extending toward the secondary gas supplementing passage, the shielding portion is connected with the straight section through a connecting member, and the connecting member includes a vertical connecting portion parallel to the straight section and a horizontal connecting portion parallel to the shielding portion.

In order to ensure gas tightness, the central gas duct preferably has a through hole through which the transverse connection passes, while the vertical connection has an extension projecting below the transverse connection, which keeps the vertical connection in close proximity to the through hole at all times as the moving part moves along the through hole via the transverse connection.

In order to realize that the moving part can change the air inlet area of the fire outlet part of the inner ring fire cover, preferably, the inner ring fire cover comprises an inner ring wall and an outer ring wall which are arranged at intervals, a central cavity is enclosed by the inner ring wall, an outer peripheral cavity for the moving part to move is enclosed by the inner ring wall and the outer ring wall together, the inner ring wall is connected with the outer ring wall through connecting ribs which are arranged at intervals along the circumferential direction, a first elastic element which enables the moving part to return to the initial state all the time is connected between the moving part and each connecting rib, and the fire outlet part is arranged on the outer ring wall.

In order to adaptively adjust the gas pressure of the inner ring gas mixing chamber, preferably, the switch member includes a first switch portion fixedly disposed in the branch chamber and a second switch portion disposed toward the branch port, the second switch portion can retract and extend inward relative to the first switch portion, the second switch portion has a blocking plate, and the first switch portion is provided with a second elastic member capable of enabling the blocking plate to always block the branch port. When the gas pressure in the central gas channel is too small, the switch piece is still not enough to be opened even though the moving piece moves downwards under the action of placing the cooker on the moving piece, so that the problem of adaptability of the flow-dividing chamber when the gas pressure in the central gas channel is too small is solved, and the normal fire outlet of the inner ring fire cover is met to the maximum extent.

In order to be able to guide the secondary air to the distributor chamber, the upper end of the flat section preferably has a guide portion which guides the secondary air to the distributor region of the distributor chamber.

In order to better adapt to sharp-bottom pot or sharp-bottom pot, avoid the bottom of the pot of sharp-bottom pot or sharp-bottom pot to push down the inner ring fire lid, preferably, the central authorities of the shielding part of the moving part have a rod body for the pot to rest on, the rod body makes the shielding part and the pot keep a preset distance.

Compared with the prior art, the utility model has the advantages that: when the pan was placed on central gas passageway, the moving part received pressure downstream, avoided the inner ring fire lid by the pressure cooker and because of the excessive fire phenomenon that takes off that causes of central channel internal pressure, when the pan was mentioned and leaves central channel, the moving part upwards removed again, had realized culinary art in-process adaptability and had adjusted, in addition, can also separate into two relatively independent spaces with secondary tonifying qi passageway when the moving part moves down, communicate respectively the play fire portion region of inner ring gas mixing chamber with the branch fire hole region of flow distribution chamber avoids inner ring gas mixing chamber and flow distribution chamber between the secondary air mutual "strive for".

Drawings

FIG. 1 is a schematic view of a burner according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the moveable member of the burner of FIG. 1 in an initial state;

FIG. 3 is a cross-sectional view of the moveable member of the burner of FIG. 1 in a lowered position;

FIG. 4 is a schematic structural diagram of an inner ring fire cover in an embodiment of the utility model;

FIG. 5 is a schematic structural view of a movable member according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of fig. 5.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 6, in order to best implement the present invention, the burner for gas range in this embodiment comprises a base 1, a central gas channel 11 disposed at the center of the base 1, the central gas channel 11 is a cylindrical structure with an upward opening, an inner ring fire cover 2 disposed on the central gas channel 11 and formed with an inner ring gas mixing chamber 21, the inner ring fire cover 2 has a fire outlet 22 communicated with the inner ring gas mixing chamber 21, a flow dividing chamber 3 is disposed at the periphery of the inner ring gas mixing chamber 21, the flow dividing chamber 3 has at least two fire dividing holes 30 and a flow dividing port 31 communicated with the central gas channel 11, wherein a switch 4 capable of opening and closing the flow dividing port 31 is disposed in the flow dividing chamber 3, the switch 4 comprises a first switch part 41 fixedly disposed in the flow dividing chamber 3 and a second switch part 42 disposed toward the flow dividing port 31 in order to adaptively adjust the gas pressure of the inner ring gas mixing chamber 21, the second switch portion 42 can contract inwards and extend outwards relative to the first switch portion 41, the second switch portion 42 is provided with a blocking plate 421, the first switch portion 41 is provided with a second elastic piece 10 which enables the blocking plate 421 to always block the trend of the branch opening 31, when the gas pressure in the central gas channel 11 is too small, although the moving piece 7 moves downwards under the action of being placed on the moving piece, the switch piece 4 is still not enough to be opened, the problem of adaptability of the branch chamber 3 when the gas pressure in the central gas channel 11 is too small is solved, and the normal fire outlet of the inner ring fire cover 2 is met to the maximum extent.

In addition to the above-mentioned moving part 7 moving under the action of the pot placed on it to avoid the action of pressing fire, an air supply cavity 5 is formed between the inner ring air mixing chamber 21 and the branch chamber 3, correspondingly, a plurality of radial secondary air supply channels 6 for communicating the air supply cavity 5 with the outside are arranged on the base 1 along the circumferential direction at intervals, and a moving part 7 is also arranged locally in the central gas channel 11, specifically, the moving part 7 comprises a shielding part 71 for shielding the fire outlet part 22 and a separating part 72 connected with the shielding part 71 and located in the air supply cavity 5, the moving part 7 can be directly triggered to move under the action of the pot placed on it, thereby realizing that the air inlet area of the fire outlet part 22 is changed, simultaneously, the gas in the central gas channel 11 is divided to the branch chamber 3 and the secondary air supply channels 6 are separated into two relatively independent spaces, and respectively communicating the fire outlet part 22 area of the inner ring air mixing chamber 21 and the branch hole area of the branch chamber 3, in order to realize the connection between the shielding portion 71 and the separating portion 72 in the movable element 7, the separating portion 72 includes a straight section 721 parallel to the central gas passage 11 and a horizontal separating section 722 located at the lower end of the straight section 721 and extending toward the secondary air replenishing passage 6, the shielding portion 71 and the straight section 721 are connected by a connecting member 8, the connecting member 8 includes a vertical connecting portion 81 parallel to the straight section 721 and a horizontal connecting portion 82 parallel to the shielding portion 71, and in order to ensure the airtightness of the movable element 7 during the moving process, the central gas passage 11 has a through hole 110 for the horizontal connecting portion 82 to pass through, the vertical connecting portion 81 has an extending section 811 protruding below the horizontal connecting portion 82, and when the movable element 7 moves along the through hole 110 through the horizontal connecting portion 82, the extending section 811 keeps the vertical connecting portion 81 in close proximity to the through hole 110. In order to realize that the moving part 7 can change the air inlet area of the fire outlet part 22 of the inner ring fire cover 2, preferably, the inner ring fire cover 2 comprises an inner ring wall 23 and an outer ring wall 24 which are arranged at intervals, the inner ring wall 23 encloses a central cavity 231, the inner ring wall 23 and the outer ring wall 24 together enclose an outer cavity 241 for the moving part 7 to move, the inner ring wall 23 is connected with the outer ring wall 24 through connecting ribs 25 which are arranged at intervals along the circumferential direction, a first elastic element 9 which enables the moving part 7 to return to the initial state all the time is connected between the moving part 7 and each connecting rib 25, and the fire outlet part 22 is arranged on the outer ring wall 24. In order to be able to guide the secondary air to the dividing chamber 3, the upper end of the straight section 721 of the movable element 7 has a guide portion 723 which guides the secondary air to the fire hole area of the dividing chamber 3. Finally, in order to better adapt to a pointed-bottom pot or a pointed-top-bottom pot and prevent the bottom of the pointed-bottom pot or the pointed-top-bottom pot from pressing the inner ring fire cover 2, the center of the shielding part 71 of the movable part 7 is provided with a rod body 711 for placing a pot thereon, and the rod body 711 enables the shielding part 71 to keep a preset distance from the pot.

In summary, the burner for the gas stove adapts to the sharp-bottom pot or the sharp-bottom pot in the using process as follows:

a. when the gas pressure in the central gas passage 11 is too low: only when a sharp-bottom pot or a sharp-bottom pot is placed on the rod body 711, the moving part 7 is triggered to move downwards, the straight section 721 of the moving part 7 moves downwards along the air supply cavity 5, and the shielding part 71 moves downwards to a corresponding distance according to the sharpness degree of the pot bottom, at this time, the gas pressure in the central gas channel 11 is still not enough to open the switch element 4, in addition, the moving part 7 can also divide the secondary air supply channel 6 into two relatively independent spaces when moving downwards, the two relatively independent spaces are respectively communicated with the fire outlet part 22 area of the inner ring air mixing chamber 21 and the fire distributing hole area of the flow distributing chamber 3, and the mutual 'fighting' of secondary air between the inner ring air mixing chamber 21 and the flow distributing chamber 3 is avoided;

b. when the gas pressure in the central gas passage 11 is too high: the gas pressure in the central gas channel 11 can force the switch element 4 to move towards the shunting chamber 3, so that the gas in the central gas channel 11 can be shunted into the shunting chamber 3 and flows out of shunting holes formed in the top wall of the shunting chamber 3, and burns together with external secondary air to form a middle ring fire, and when a user lifts up the cookware, the movable element 7 and the switch element 4 in the control shunting chamber 3 can both return to an initial state.

Claims (7)

1. A burner for a gas range, said burner comprising:

a base (1);

the central gas channel (11), the central gas channel (11) is a cylindrical structure with an upward opening, and is arranged at the central part of the base (1);

the inner ring fire cover (2) is arranged on the central gas channel (11), is provided with an inner ring gas mixing chamber (21) and is provided with a fire outlet part (22) communicated with the inner ring gas mixing chamber (21);

the method is characterized in that:

the flow dividing chamber (3) is positioned at the periphery of the inner ring gas mixing chamber (21) and is provided with at least two fire dividing holes (30) and a flow dividing port (31) communicated with the central gas channel (11);

a switching member (4) that is provided in the flow dividing chamber (3) and that can open and close the flow dividing port (31);

the air supplementing cavity (5) is formed by the interval between the inner ring air mixing chamber (21) and the shunting chamber (3);

the base (1) is also provided with a plurality of radial secondary air supplementing channels (6) at intervals along the circumferential direction, and the secondary air supplementing channels are used for communicating the air supplementing cavity (5) with the outside; and

the moving part (7) is at least partially arranged in the central gas channel (11) and comprises a shielding part (71) used for shielding the fire outlet part (22) and a partition part (72) connected with the shielding part (71) and located in the gas supplementing cavity (5), the moving part (7) can be directly triggered to move under the action of placing the pot on the moving part, so that the gas in the central gas channel (11) can be shunted to the shunting chamber (3) while the gas inlet area of the fire outlet part (22) is changed, the secondary gas supplementing channel (6) is partitioned into two relatively independent spaces, and the two relatively independent spaces are respectively communicated with the fire outlet part (22) area of the inner ring gas mixing chamber (21) and the fire distributing hole area of the shunting chamber (3).

2. Burner for gas cooktops, according to claim 1, characterized in that: the separating part (72) comprises a straight section (721) parallel to the central gas channel (11) and a horizontal separating section (722) which is positioned at the lower end of the straight section (721) and extends towards the secondary gas supplementing channel (6), the blocking part (71) is connected with the straight section (721) through a connecting piece (8), and the connecting piece (8) comprises a vertical connecting part (81) parallel to the straight section (721) and a transverse connecting part (82) parallel to the blocking part (71).

3. Burner for gas cooktops according to claim 2, characterized in that: the central gas channel (11) has a through hole (110) through which the transverse connection (82) passes, while the vertical connection (81) has an extension (811) projecting below the transverse connection (82), the extension (811) keeping the vertical connection (81) always in close proximity to the through hole (110) when the moving element (7) moves along the through hole (110) via the transverse connection (82).

4. Burner for gas cooktops according to claim 3, characterized in that: the inner ring fire cover (2) comprises an inner ring wall (23) and an outer ring wall (24) which are arranged at an inner interval and an outer interval, a central cavity (231) is surrounded by the inner ring wall (23), a peripheral cavity (241) for the moving part (7) to move is surrounded by the inner ring wall (23) and the outer ring wall (24), the inner ring wall (23) is connected with the outer ring wall (24) through connecting ribs (25) which are arranged at intervals along the circumferential direction, a first elastic element (9) which enables the moving part (7) and each connecting rib (25) to return to an initial state all the time is connected between the moving part (7) and each connecting rib (25), and the fire outlet part (22) is arranged on the outer ring wall (24).

5. Burner for gas cooktops according to claim 4, characterized in that: the switch part (4) comprises a first switch part (41) fixedly arranged in the shunting chamber (3) and a second switch part (42) arranged towards the shunting port (31), the second switch part (42) can retract and extend outwards relative to the first switch part (41), the second switch part (42) is provided with a blocking plate (421), and the first switch part (41) is provided with a second elastic part (10) capable of enabling the blocking plate (421) to always block the shunting port (31).

6. The burner for a gas range according to any one of claims 2 to 5, wherein: the upper end of the straight section (721) has a guide portion (723) that guides secondary air to the flame-dividing hole region of the flow-dividing chamber (3).

7. Burner for gas cooktops according to claim 6, characterized in that: the center of the shielding part (71) of the movable piece (7) is provided with a rod body (711) for placing a pot thereon, and the rod body (711) enables the shielding part (71) and the pot to keep a preset distance.

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