CN110017511B

CN110017511B - Gear-driven closed gas stove safety mechanism

Info

Publication number: CN110017511B
Application number: CN201910294280.4A
Authority: CN
Inventors: 楼和根
Original assignee: Individual
Current assignee: Zhuji Zhuoxiu Pipe Industry Co ltd
Priority date: 2018-02-05
Filing date: 2018-02-05
Publication date: 2020-09-15
Anticipated expiration: 2038-02-05
Also published as: CN110017511A; CN108317284B; CN110017510A; CN108317284A; CN110017510B

Abstract

The invention belongs to the technical field of gas cookers, and particularly relates to a gear-driven closed gas cooker safety mechanism, which comprises a combustion head, a gas suction ring, a first gas guide pipe, a main shell, a gas cooker shell, a first bevel gear combination, an elastic gas bag, a third bevel gear combination, an igniter, a rectangular pipe, a cooling channel, a first semiconductor refrigerating sheet, a second semiconductor refrigerating sheet and the like, wherein unignited gas of a gas cooker can be sucked into the elastic gas bag through the gas channel for storage, and after the gas cooker is successfully ignited, gas in the elastic gas bag can be quickly discharged into the gas cooker through the gas channel again for combustion and utilization; in addition, when the gas stove is suddenly flamed out, the electromagnetic valve can close the air inlet of the gas stove according to the received signal, so that the safe use of the gas stove is ensured; the invention has simple structure and better use effect.

Description

Gear-driven closed gas stove safety mechanism

Technical Field

The invention belongs to the technical field of gas cookers, and particularly relates to a gear-driven closed gas cooker safety mechanism.

Background

Before the conventional gas stove is ignited, a small part of gas can emerge from gas holes of the gas stove, and in order to effectively utilize the gas which is not utilized before ignition, a gas recovery mechanism is needed; in addition, in the normal combustion process after the gas stove is ignited, after the gas stove is suddenly extinguished, the gas still continuously emerges from the gas hole of the gas stove, so that potential safety hazards are generated, and in order to ensure that the gas stove can stop gas evolution after being suddenly extinguished, and in addition, redundant gas which emerges can be recycled at the initial stage of ignition, a gas stove safety mechanism needs to be designed.

The invention designs a gear-driven closed gas stove safety mechanism to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a gear-driven closed gas stove safety mechanism which is realized by adopting the following technical scheme.

The utility model provides a gear drive's closed gas-cooker safety mechanism which characterized in that: the gas stove comprises a combustion head, a gas suction ring, a first gas guide pipe, a main shell, a gas stove shell, a first shell, a second gas guide pipe, a motor, a first bevel gear combination, a third gas guide pipe, a rack, a sliding plate, an elastic air bag, a first fixed block, a second shaft, a first fixed plate, a second bevel gear combination, a third shaft, a second fixed plate, a third bevel gear combination, an execution mechanism, a rack guide rail, a cylindrical fixed block, a second fixed block, an igniter, a thermocouple, a first pump, a third fixed block, a first hole, an annular tangent plane, a second gas hole, a combustion groove, a first gas hole, a third gas hole, a fourth gas hole, an annular cavity, a fourth fixed block, a guide rail groove, a pump shaft, a first shaft and a fourth shaft, wherein the main shell is composed of a first plate, a second plate, a third plate, a fourth plate, a; the top plate is provided with a first hole; the second plate is provided with a first fixing plate and a second fixing plate; a first fixed block, a second fixed block, a third fixed block and a fourth fixed block are arranged on the bottom plate; the second fixing block is positioned at the position of the bottom plate close to the first plate; a guide rail groove is formed in the upper plate surface of the second fixing block, which is close to one corner of the second plate; the first fixed block is positioned between the second fixed block and the third plate; the third fixed block and the fourth fixed block are positioned between the second fixed block and the first fixed block; the gas stove shell is arranged on the top plate; the gas stove shell is provided with a combustion groove; the upper end surface of the gas stove shell is provided with an annular tangent plane; the combustion head is arranged in the middle of the bottom groove surface of the combustion groove; a plurality of first air holes are uniformly formed in the circumferential direction of the outer circular surface of the combustion head; a plurality of second air holes are uniformly formed between the annular tangent plane and the outer circular surface of the gas stove shell along the circumferential direction; the gas suction ring is arranged on the outer circular surface of the gas stove shell; the air suction ring is provided with an annular cavity; a plurality of third air holes are uniformly formed in the inner circular surface of the air suction ring in the circumferential direction; the third air hole is communicated with the annular cavity; each second air hole is communicated with a corresponding third air hole; a fourth air hole is formed in the outer circular surface of the air suction ring; the fourth air hole is communicated with the annular cavity; the igniter is arranged on the bottom groove surface of the combustion groove through a rod; the thermocouple is installed on the bottom groove surface of the combustion groove through a rod.

The first shell is arranged on the first fixed block; the first shell body is composed of a shell top plate, a shell bottom plate, a first end plate, a second end plate, a first side plate and a second side plate.

The motor is arranged on the fourth fixed block; the first pump is arranged on the third fixed block; one end of the pump shaft is connected with the motor shaft, and the other end of the pump shaft is connected with the first pump through the coupler; one end of the first shaft is connected with a motor shaft, and the other end of the first shaft is provided with a first bevel gear combination; the second shaft penetrates through the first fixing plate, one end of the second shaft is connected with the first bevel gear assembly, and the other end of the second shaft is provided with a second bevel gear assembly; a third shaft penetrates through the second fixing plate, one end of the third shaft is connected with the second bevel gear combination, and a third bevel gear combination is installed at the other end of the third shaft; the fourth shaft passes through the third fixing plate, one end of the fourth shaft is connected with the third bevel gear in a combined mode, and the other end of the fourth shaft is provided with an actuating mechanism.

The rack guide rail is arranged in the guide rail groove; one end of the rack is nested in the rack guide rail, and the other end of the rack is provided with a sliding plate; the cylindrical fixed block is arranged on the second fixed block; one end of the elastic air bag is arranged on the cylindrical fixed block, and the other end of the elastic air bag is arranged on the sliding plate; the actuating mechanism is matched with the rack.

The executing mechanism comprises a fifth fixing block, a sixth fixing block, a second output gear, a first gear, a third gear, a second gear, an input gear, a fifth shaft, a first spring, a first guide block, a first guide groove, a second spring, a second guide block and a second guide groove, wherein the input gear is arranged on the fourth shaft; the first output gear and the second output gear are both arranged on the second plate through shafts; the fifth fixing block and the sixth fixing block are arranged on the second plate; a first guide groove is formed in the fifth fixing block; the first guide block is arranged in the first guide groove; one end of the first spring is arranged on the first guide block, and the other end of the first spring is arranged on the groove surface of the first guide groove; the first spring is positioned in the first guide groove; the first gear is arranged on the first guide block through a shaft; the first gear slides in the first guide groove through the first guide block; a second guide groove is formed in the sixth fixing block; the second guide block is arranged in the second guide groove; one end of the second spring is arranged on the second guide block, and the other end of the second spring is arranged on the groove surface of the second guide groove; the second spring is positioned in the first guide groove; the third gear is arranged on the second guide block through a fifth shaft; the third gear slides in the second guide groove through the second guide block; the second gear is arranged on the outer circular surface of the fifth shaft and is positioned between the third gear and the second guide block; the first gear is meshed with the input gear; the first gear is matched with the first output gear; the second gear is meshed with the input gear; the third gear is matched with the second output gear; the first output gear and the second output gear are both meshed with the rack.

One end of the first air duct is arranged in the fourth air hole, and the other end of the first air duct passes through the first hole and is arranged on the round hole of the first end plate; one end of the second air duct is arranged on the round hole of the second end plate, and the other end of the second air duct is connected with the first pump; one end of the third air duct is arranged on the first pump, and the other end of the third air duct is connected with the elastic air bag; the third air duct is communicated with the elastic air bag.

The groove direction of the first guide groove is vertical to a connecting line of the circle center of the input gear and the circle center of the first gear; the groove direction of the second guide groove is vertical to a connecting line of the circle center of the input gear and the circle center of the second gear.

The diameter of the first gear is larger than that of the second gear; the diameter of the third gear is larger than the diameter of the second gear.

As a further improvement of the technology, the first bevel gear combination is composed of two bevel gears with axes at 90 degrees to each other; the second bevel gear combination consists of two bevel gears with axes which are 90 degrees to each other; the third bevel gear combination is composed of two bevel gears with axes at 90 degrees.

As a further improvement of the technology, when the rack is positioned at the bottommost end of the rack guide rail, the elastic air bag is in a flattened state; when the actuating mechanism does not operate, the first gear is meshed with the first output gear; the third gear is meshed with the second output gear.

As a further improvement of the technology, the gas inlet and outlet of the combustion head are controlled by an electromagnetic valve.

As a further improvement of the technology, after the switch of the gas stove is opened, the electromagnetic valve is opened, and after 2 seconds, the temperature identified by the thermocouple is less than 500 ℃, and the electromagnetic valve is closed.

As a further improvement of the present technology, when the temperature recognized by the thermocouple is reduced from a temperature higher than 500 degrees to 500 degrees or lower, the electromagnetic valve is closed 2 seconds later.

As a further improvement of the present technique, the ratio of the width to the height of the first housing is 10: 1.

As a further improvement of the technology, the first shell further comprises a rectangular tube, a first semiconductor refrigeration piece and a second semiconductor refrigeration piece, wherein one end of the rectangular tube is installed on the first end plate, and the other end of the rectangular tube is installed on the second end plate; two sides of the rectangular pipe are respectively connected with the first side plate and the second side plate; the rectangular pipe is positioned in the middle of the first shell; the rectangular tube, the first end plate and the second end plate form a cooling channel; the first semiconductor refrigeration piece is arranged on the lower pipe surface of the rectangular pipe, one end of the first semiconductor refrigeration piece is connected with the first end plate, and the other end of the first semiconductor refrigeration piece is connected with the second end plate; a first heat dissipation channel is formed by the first semiconductor refrigeration sheet, the shell top plate, the first end plate, the second end plate, the first side plate and the second side plate; the second semiconductor refrigeration piece is arranged on the upper pipe surface of the rectangular pipe, one end of the second semiconductor refrigeration piece is connected with the first end plate, and the other end of the second semiconductor refrigeration piece is connected with the second end plate; a second heat dissipation channel is formed by the second semiconductor refrigeration sheet, the shell bottom plate, the first end plate, the second end plate, the first side plate and the second side plate; the first air duct is communicated with the cooling channel; the second air duct is communicated with the cooling channel; the first end plate and the second end plate at the two sides of the first heat dissipation channel and the second heat dissipation channel are provided with vent holes.

As a further improvement of the technology, the device also comprises a fourth air duct, a fifth air duct, a second pump, a sixth air duct, a second hole, a seventh air duct, a flow divider, an eighth air duct, a fourth hole, a ninth air duct and a third hole, wherein the bottom plate is provided with the second hole, the third hole and the fourth hole; the second hole is positioned between the second fixed block and the third fixed block; the third hole and the fourth hole are positioned between the first fixing block and the third plate; the second pump is arranged on the third fixed block; the first pump is positioned between the second pump and the motor; the second pump is connected with a rotating shaft of the first pump through a coupler, one end of a sixth air duct is installed on the second pump, and the other end of the sixth air duct is installed in the second hole; one end of the seventh air duct is arranged on the second pump, and the other end of the seventh air duct is provided with a flow divider; one end of the eighth air duct is arranged on the flow divider, and the other end of the eighth air duct is arranged on the second end plate; the eighth air duct is communicated with the first heat dissipation channel; one end of the fourth air duct is arranged on the first end plate, and the other end of the fourth air duct is arranged in the fourth hole; the fourth air duct is communicated with the first heat dissipation channel; one end of the ninth air duct is arranged on the flow divider, and the other end of the ninth air duct is arranged on the second end plate; the ninth air duct is communicated with the second heat dissipation channel; one end of the fifth air duct is arranged on the first end plate, and the other end of the fifth air duct is arranged in the third hole; the fifth air duct is communicated with the second heat dissipation channel.

As a further improvement in the present technique, the ratio of the width to the height of the rectangular tube is 10: 1.

The igniter of the invention has the following functions: the igniter may ignite the gas emerging from the first gas hole.

The ratio of the width to the height of the first housing or rectangular tube is 10:1, and the passage of such ratio has the effect of extinguishing the gas burning through the passage, preventing the flame from being sucked back into the elastic bag, thereby causing an explosion.

The thermocouple can transmit the identification signal to the chip, and the chip controls the rotation of the motor and the opening and closing of the electromagnetic valve. The outer circular surface of the gas stove shell is provided with the air suction ring, and the air suction ring has the following functions: the gas can pass through the second air hole and the third air hole and enter and exit the annular cavity, and the gas in the annular cavity can pass through the fourth air hole and enter and exit the first air duct.

The first semiconductor refrigerating piece and the second semiconductor refrigerating piece have the following functions: on the one hand, the temperature in the cooling channel can be maintained to be lower than the ignition temperature of the fuel gas; on the other hand can give first heat dissipation channel and second heat dissipation channel with heat transfer, further improve the effect that the passageway is extinguished to the gas of burning.

The cooling channel has the functions of: after being sucked into the cooling channel, the high-temperature combustion gas can be cooled, and finally the high-temperature combustion gas can be extinguished; the flame is prevented from being sucked into the elastic air bag reversely to cause the explosion of the elastic air bag.

The first heat dissipation channel and the second heat dissipation channel have the function of dissipating heat of the hot ends of the first semiconductor chilling plate and the second semiconductor chilling plate by utilizing the convection effect of air flow.

The motor of the invention has the following functions: on one hand, the motor can drive the first pump and the second pump to work; on the other hand, the motor can drive the first gear to rotate through the first shaft, the first bevel gear combination, the second shaft, the second bevel gear combination, the third shaft, the third bevel gear combination and the fourth shaft.

According to the invention, the second gear and the third gear are both arranged on the fifth shaft, and the diameter of the first gear is larger than that of the second gear; the diameter of the third gear is larger than that of the second gear, so that the transmission ratio of the input gear transmitted to the second output gear through the second gear and the third gear is smaller than that of the input gear transmitted to the first output gear through the first gear.

In the actuator, a first gear is meshed with an input gear; the first gear is matched with the first output gear; the second gear is meshed with the input gear; the third gear is matched with the second output gear; first output gear and second output gear all mesh with the rack mutually and first output gear and second output gear dislocation's effect is: on one hand, when the motor rotates forwards, the motor drives the input gear to rotate anticlockwise through the first shaft, the first bevel gear combination, the second shaft, the second bevel gear combination, the third shaft, the third bevel gear combination and the fourth shaft, the input gear drives the first output gear to rotate anticlockwise through the first gear, the first output gear drives the rack to move upwards slowly, in the process, the second gear moves towards the direction of the second spring under the driving action of the input gear, and the third gear is disengaged from the meshing relation with the second output gear; on the other hand, when the motor rotates reversely, the motor drives the input gear to rotate clockwise through the first shaft, the first bevel gear combination, the second shaft, the second bevel gear combination, the third shaft, the third bevel gear combination and the fourth shaft, the input gear drives the second output gear to rotate clockwise through the second gear and the third gear, the anticlockwise rotation speed of the second output gear is higher than the clockwise rotation speed of the first output gear, and then the second output gear drives the rack to move downwards quickly. The rack moves downwards quickly to enable the fuel gas to be discharged from the elastic air bag quickly, and the reverse suction of flame is prevented.

One end of the rack is provided with a sliding plate, and the other end of the rack is inserted into the rack guide rail; one end of the elastic air bag is arranged on the sliding plate, and the other end of the elastic air bag is arranged on the cylindrical fixing plate; when the rack moves upwards, the rack can stretch the elastic air bag through the sliding plate, so that the air storage space of the elastic air bag is enlarged; when the rack moves downwards, the rack can compress the elastic air bag through the sliding plate, so that the air storage space of the elastic air bag is reduced; when the rack moves downwards to the maximum position under the action of the actuating mechanism, the elastic air bag is flattened, and the air storage space of the elastic air bag is almost zero at the moment. The second output gear is used for enabling the sliding plate to move downwards quickly, and then the sliding plate can compress the elastic air bag quickly, so that fuel gas in the elastic air bag is exhausted quickly. The rack moves downwards quickly to enable the fuel gas to be discharged from the elastic air bag quickly, and the reverse suction of flame is prevented.

The gas channel is formed by a first gas guide pipe, a cooling channel, a second gas guide pipe, a first pump and a third gas guide pipe; when the first pump rotates forward, the fuel gas sucked into the annular cavity can enter the elastic air bag through the first air duct, the cooling channel, the second air duct, the first pump and the third air duct; when the first pump operates reversely, the gas in the elastic airbag can enter the annular cavity through the third gas guide pipe, the first pump, the second gas guide pipe, the cooling channel and the first gas guide pipe, and the gas in the annular cavity can emerge from the third gas hole and the second gas hole.

The fourth air duct, the first heat dissipation channel, the eighth air duct, the flow divider, the seventh air duct, the second pump and the sixth air duct form a first air flow channel; then under the operation of the second pump, the air can flow in the first air flow channel, and further the heat can be dissipated to the first semiconductor chilling plate.

According to the invention, the fifth air duct, the second heat dissipation channel, the ninth air duct, the flow divider, the seventh air duct, the second pump and the sixth air duct form a second air flow channel; then under the operation of the second pump, air can flow in the second air flow channel, and further the second semiconductor chilling plate is cooled.

When the gas stove is not used, the electromagnetic valve is in a closed state; the actuating mechanism does not operate, and the first gear is meshed with the first output gear; the third gear is meshed with the second output gear; when the rack is positioned at the lowest end of the rack guide rail, the elastic air bag is in a flattened state.

When the gas stove is used, the electromagnetic valve is opened, the motor is started in a forward rotation mode, and before the igniter ignites the gas, the temperature signal recognized by the thermocouple is smaller than 500 ℃; in the process of forward rotation of the motor, on one hand, the motor drives the input gear to rotate anticlockwise through the first shaft, the first bevel gear combination, the second shaft, the second bevel gear combination, the third shaft, the third bevel gear combination and the fourth shaft, the input gear drives the first output gear to rotate anticlockwise through the first gear, the first output gear drives the rack to move upwards slowly, and the rack can stretch the elastic air bag through the sliding plate, so that the air storage space of the elastic air bag is increased and negative pressure is generated; on the other hand, the motor drives the first pump and the second pump to rotate positively, and under the action of the positive rotation of the first pump and the negative pressure of the elastic air bag, the fuel gas which is not ignited by the igniter is sucked into the annular cavity through the second air hole and the third air hole; the fuel gas sucked into the annular cavity can enter the elastic air bag through the fuel gas channel, and the elastic air bag stores the non-ignited fuel gas; under the positive rotation of the second pump, the air flows in the first air flow channel and the second air flow channel, and then the heat of the first semiconductor refrigerating sheet and the second semiconductor refrigerating sheet is dissipated. When the electromagnetic valve is opened, the temperature identified by the thermocouple is still less than 500 ℃ after 2 seconds, and the electromagnetic valve is closed.

When the igniter ignites gas, the temperature signal identified by the thermocouple is more than 500 ℃, the thermocouple transmits the signal to the motor through the chip, and the motor rotates reversely; in the process of motor reversal, on one hand, the motor drives the first gear to rotate clockwise through the first shaft, the first bevel gear combination, the second shaft, the second bevel gear combination, the third shaft, the third bevel gear combination and the fourth shaft, the input gear drives the second output gear to rotate clockwise through the second gear and the third gear, the counterclockwise rotation speed of the second output gear is faster than the clockwise rotation speed of the first output gear, the second output gear drives the rack to move downwards quickly, the rack can compress the elastic air bag quickly through the sliding plate, further quickly reducing the gas storage space of the elastic air bag, quickly discharging the stored gas into the combustion stove shell through the gas channel, the annular cavity, the third air hole and the second air hole under the compression of the elastic air bag and the reverse rotation of the first pump, and the stored gas is combusted and utilized, so that the effect of effectively utilizing the gas which is not fully utilized is achieved. The motor was stopped after 5 seconds of reverse rotation.

When the gas stove suddenly encounters a flameout condition in the normal combustion process, the gas still emerges at the moment; after that, when the temperature recognized by the thermocouple decreased from a temperature higher than 500 degrees to 500 degrees or lower, the electromagnetic valve was closed 2 seconds later.

Compared with the traditional gas stove technology, the unignited gas of the gas stove can be sucked into the elastic airbag through the gas channel to be stored, and after the gas stove is ignited successfully, the gas in the elastic airbag can be quickly discharged into the gas stove through the gas channel again to be combusted and utilized; in addition, when the gas stove is suddenly flamed out, the electromagnetic valve can close the air inlet of the gas stove according to the received signal, so that the safe use of the gas stove is ensured; the invention has simple structure and better use effect.

Drawings

Fig. 1 is a schematic view of the overall component distribution.

Fig. 2 is a schematic perspective view of an integral part.

Fig. 3 is a cross-sectional (one) schematic view of an integral part.

Fig. 4 is a schematic sectional view (two) of the whole part.

Fig. 5 is a schematic view of the structure of the gas range.

Figure 6 is a schematic view of a getter ring structure.

Fig. 7 is a schematic cross-sectional view of a suction ring.

Fig. 8 is a sectional (first) schematic view of the housing.

Fig. 9 is a sectional view (two) of the housing.

Fig. 10 is a schematic view of the housing internal mounting components.

Fig. 11 is a first pump installation schematic.

Fig. 12 is a schematic sectional front view of the first housing.

Fig. 13 is a schematic cross-sectional view of the first housing.

Fig. 14 is a schematic view of a first semiconductor chilling plate installation.

Fig. 15 is a schematic view of slide plate mounting.

Fig. 16 is a schematic view of a first bevel gear set installation.

FIG. 17 is a schematic view of the installation of the resilient bladder.

Fig. 18 is a schematic view of an actuator.

Fig. 19 is a schematic front view of the actuator.

Fig. 20 is a first gear mounting schematic.

Fig. 21 is a first spring installation schematic.

Fig. 22 is a schematic view of a fifth fixing block structure.

Fig. 23 is a second gear mounting schematic.

Fig. 24 is a second spring mounting schematic.

Fig. 25 is a schematic view of a sixth fixing block structure.

Fig. 26 is a schematic view showing that the first output gear and the second output gear are respectively engaged with the rack.

Fig. 27 is a schematic sectional view of a rack guide.

Fig. 28 is a schematic diagram of the actuator operation.

Number designation in the figures: 1. a burner head; 2. a suction ring; 3. a first air duct; 4. a main housing; 5. a gas stove housing; 6. a first housing; 7. a second air duct; 8. a motor; 9. a first bevel gear combination; 10. a third air duct; 12. a rack; 13. a sliding plate; 14. an elastic air bag; 15. a fourth gas-guide tube; 16. a fifth gas-guide tube; 17. a first fixed block; 18. a second shaft; 19. a first fixing plate; 20. a second bevel gear combination; 21. a third axis; 22. a second fixing plate; 23. a third fixing plate; 24. a third bevel gear combination; 26. a sixth gas-guide tube; 28. a rack guide rail; 30. a cylindrical fixing block; 31. a second fixed block; 32. an igniter; 33. a thermocouple; 34. a first pump; 35. a third fixed block; 36. a first hole; 37. cutting into an annular section; 38. a second air hole; 39. a combustion tank; 40. a first air hole; 41. a third air hole; 42. a fourth air hole; 43. an annular cavity; 44. a first plate; 45. a second plate; 46. a third plate; 47. a fourth plate; 48. a base plate; 49. a top plate; 50. a second hole; 51. a third aperture; 52. a fourth aperture; 53. a fourth fixed block; 54. a guide rail groove; 55. a second pump; 56. a flow divider; 58. a seventh airway tube; 59. an eighth gas-guide tube; 60. a ninth air duct; 61. a pump shaft; 62. a first shaft; 63. a rectangular tube; 64. a cooling channel; 65. a first heat dissipation channel; 66. a second heat dissipation channel; 68. a fourth axis; 71. a first semiconductor refrigeration chip; 72. a second semiconductor refrigeration chip; 75. an actuator; 76. a fifth fixed block; 77. a sixth fixed block; 78. a second output gear; 79. a first output gear; 80. a first gear; 81. a third gear; 82. a second gear; 83. an input gear; 84. a fifth shaft; 85. a first spring; 86. a first guide block; 87. a first guide groove; 88. a second spring; 89. a second guide block; 90. a second guide groove; 91. a shell top plate; 92. a housing floor; 93. a first end plate; 94. a second end plate; 95. a first side plate; 96. a second side plate.

Detailed Description

As shown in fig. 1 and 2, it comprises a combustion head 1, an air suction ring 2, a first air duct 3, a main housing 4, a gas stove housing 5, a first housing 6, a second air duct 7, a motor 8, a first bevel gear combination 9, a third air duct 10, a rack 12, a sliding plate 13, an elastic airbag 14, a first fixed block 17, a second shaft 18, a first fixed plate 19, a second bevel gear combination 20, a third shaft 21, a second fixed plate 22, a third fixed plate 23, a third bevel gear combination 24, an actuator 75, a rack guide rail 28, a cylindrical fixed block 30, a second fixed block 31, an igniter 32, a thermocouple 33, a first pump 34, a third fixed block 35, a first hole 36, an annular section 37, a second air hole 38, a combustion groove 39, a first air hole 40, a third air hole 41, a fourth air hole 42, an annular cavity 43, a fourth fixed block 53, a guide rail groove 54, a pump shaft 61, a first shaft 62, and a fourth shaft 68, as shown in fig. 8 and 9, in which the overall housing 4 is composed of a first plate 44, a second plate 45, a third plate 46, a fourth plate 47, a top plate 49, and a bottom plate 48; the top plate 49 is provided with a first hole 36; the second plate 45 is provided with a first fixing plate 19 and a second fixing plate 22; the bottom plate 48 is provided with a first fixed block 17, a second fixed block 31, a third fixed block 35 and a fourth fixed block 53; the second fixing block 31 is located at a position where the bottom plate 48 is close to the first plate 44; a guide rail groove 54 is formed on the upper plate surface of the second fixed block 31 close to one corner of the second plate 45; the first fixing block 17 is positioned between the second fixing block 31 and the third plate 46; the third fixing block 35 and the fourth fixing block 53 are positioned between the second fixing block 31 and the first fixing block 17; as shown in fig. 1 and 5, the gas range housing 5 is mounted on a top plate 49; the gas range housing 5 has a combustion groove 39; the upper end surface of the gas stove shell 5 is provided with an annular tangent plane 37; the combustion head 1 is arranged in the middle of the bottom groove surface of the combustion groove 39; a plurality of first air holes 40 are uniformly formed in the circumferential direction of the outer circular surface of the combustion head 1; a plurality of second air holes 38 are uniformly formed between the annular tangent plane 37 and the outer circular surface of the gas stove shell 5 along the circumferential direction; as shown in fig. 1, 6 and 7, the gas suction ring 2 is installed on the outer circumferential surface of the gas cooker case 5; an annular cavity 43 is formed in the air suction ring 2; a plurality of third air holes 41 are uniformly formed in the circumferential direction on the inner circular surface of the air suction ring 2; the third air hole 41 is communicated with the annular cavity 43; each of the second air holes 38 communicates with a corresponding one of the third air holes 41; a fourth air hole 42 is formed on the outer circular surface of the air suction ring 2; the fourth air hole 42 is communicated with the annular cavity 43; as shown in fig. 5, the igniter 32 is mounted on the bottom groove surface of the combustion groove 39 by a rod; the thermocouple 33 is mounted on the floor of the combustion chamber 39 by a rod.

As shown in fig. 12 and 13, the first housing 6 is mounted on the first fixing block 17; the first casing 6 is constituted by a case top plate 91, a case bottom plate 92, a first end plate 93, a second end plate 94, a first side plate 95, and a second side plate 96.

As shown in fig. 3, 10, 16 and 17, the motor 8 is mounted on the fourth fixing block 53; the first pump 34 is mounted on the third fixed block 35; one end of the pump shaft 61 is connected with the shaft of the motor 8, and the other end is connected with the first pump 34 through a coupling; one end of the first shaft 62 is connected with the shaft of the motor 8, and the other end is provided with a first bevel gear combination 9; the second shaft 18 passes through the first fixing plate 19, one end of the second shaft 18 is connected with the first bevel gear combination 9, and the other end is provided with a second bevel gear combination 20; the third shaft 21 passes through the second fixing plate 22, one end of the third shaft 21 is connected with the second bevel gear combination 20, and the other end is provided with a third bevel gear combination 24; the fourth shaft 68 passes through the third fixing plate 23, one end of the fourth shaft 68 is connected to the third bevel gear assembly 24, and the other end is provided with an actuator 75.

As shown in fig. 9, 15, 27, the rack rail 28 is mounted in the rail groove 54; one end of the rack 12 is nested in the rack guide rail 28, and the other end is provided with a sliding plate 13; the cylindrical fixed block 30 is mounted on the second fixed block 31; one end of the elastic air bag 14 is arranged on the cylindrical fixed block 30, and the other end is arranged on the sliding plate 13; the actuator 75 is engaged with the rack 12.

As shown in fig. 18 and 19, the actuator 75 includes a fifth fixing block 76, a sixth fixing block 77, a second output gear 78, a first output gear 79, a first gear 80, a third gear 81, a second gear 82, an input gear 83, a fifth shaft 84, a first spring 85, a first guide block 86, a first guide groove 87, a second spring 88, a second guide block 89, and a second guide groove 90, as shown in fig. 16, wherein the input gear 83 is mounted on the fourth shaft 68; as shown in fig. 18, the first output gear 79 and the second output gear 78 are each mounted on the second plate 45 by a shaft; a fifth fixing block 76 and a sixth fixing block 77 are mounted on the second plate 45; as shown in fig. 20, 21 and 22, the fifth fixing block 76 is provided with a first guide groove 87; the first guide block 86 is installed in the first guide groove 87; one end of the first spring 85 is mounted on the first guide block 86, and the other end is mounted on the groove surface of the first guide groove 87; the first spring 85 is located in the first guide groove 87; the first gear 80 is mounted on a first guide block 86 by a shaft; the first gear 80 slides in the first guide groove 87 through the first guide block 86; as shown in fig. 23, 24 and 25, the sixth fixing block 77 is provided with a second guide groove 90; the second guide block 89 is installed in the second guide groove 90; one end of the second spring 88 is mounted on the second guide block 89, and the other end is mounted on the groove surface of the second guide groove 90; the second spring 88 is located in the first guide groove 87; the third gear 81 is mounted on the second guide block 89 through a fifth shaft 84; the third gear 81 slides in the second guide groove 90 through the second guide block 89; the second gear 82 is installed on the outer circular surface of the fifth shaft 84, and the second gear 82 is located between the third gear 81 and the second guide block 89; as shown in fig. 19 and 26, the first gear 80 meshes with the input gear 83; the first gear 80 is engaged with the first output gear 79; the second gear 82 meshes with the input gear 83; the third gear 81 is engaged with the second output gear 78; the first output gear 79 and the second output gear 78 are both meshed with the rack 12.

As shown in fig. 4, 6, 11 and 12, one end of the first air duct 3 is installed in the fourth air hole 42, and the other end passes through the first hole 36 and is installed on the circular hole of the first end plate 93; one end of the second air duct 7 is arranged on the round hole of the second end plate 94, and the other end is connected with the first pump 34; one end of the third air duct 10 is arranged on the first pump 34, and the other end is connected with the elastic air bag 14; the third air duct 10 is communicated with the elastic air bag 14;

as shown in fig. 19, the groove of the first guide groove 87 is oriented perpendicular to the line connecting the center of the input gear 83 and the center of the first gear 80; the groove direction of the second guide groove 90 is vertical to the connecting line of the circle center of the input gear 83 and the circle center of the second gear 82;

as shown in fig. 19, the diameter of the first gear 80 is larger than that of the second gear 82; the diameter of the third gear 81 is larger than the diameter of the second gear 82.

As shown in fig. 16, the first set of conical teeth 9 consists of two conical teeth whose axes are at 90 degrees to each other; the second bevel gear set 20 consists of two bevel gears with axes at 90 degrees to each other; the third set of conical teeth 24 consists of two conical teeth with axes at 90 degrees to each other.

When the rack 12 is at the lowermost end of the rack guide 28, the elastic airbag 14 is in a collapsed state; as shown in fig. 28 (a), when the actuator 75 is not operated, the first gear 80 is meshed with the first output gear 79; the third gear 81 meshes with the second output gear 78.

The gas inlet and outlet of the combustion head 1 are controlled by a solenoid valve.

When the switch of the gas stove is opened, the electromagnetic valve is opened, and after 2 seconds, the temperature identified by the thermocouple 33 is less than 500 ℃, and the electromagnetic valve is closed.

When the temperature recognized by the thermocouple 33 is decreased from a temperature higher than 500 degrees to 500 degrees or lower, the electromagnetic valve is closed 2 seconds later.

As shown in fig. 18, the ratio of the width to the height of the first housing 6 is 10: 1.

As shown in fig. 12 and 13, the first housing 6 further includes a rectangular tube 63, a first semiconductor cooling plate 71 and a second semiconductor cooling plate 72, as shown in fig. 12, 13 and 14, wherein one end of the rectangular tube 63 is mounted on the first end plate 93, and the other end is mounted on the second end plate 94; two sides of the rectangular tube 63 are respectively connected with a first side plate 95 and a second side plate 96; the rectangular tube 63 is located at the middle position of the first housing 6; the cooling passage 64 is formed by the rectangular tube 63, the first end plate 93 and the second end plate 94; the first semiconductor refrigeration piece 71 is arranged on the lower tube surface of the rectangular tube 63, one end of the first semiconductor refrigeration piece 71 is connected with the first end plate 93, and the other end of the first semiconductor refrigeration piece 71 is connected with the second end plate 94; the first heat dissipation channel 65 is formed by the first semiconductor refrigeration sheet 71, the shell top plate 91, the first end plate 93, the second end plate 94, the first side plate 95 and the second side plate 96; the second semiconductor refrigeration piece 72 is installed on the upper pipe surface of the rectangular pipe 63, one end of the second semiconductor refrigeration piece 72 is connected with the first end plate 93, and the other end of the second semiconductor refrigeration piece 72 is connected with the second end plate 94; the second heat dissipation channel 66 is formed by the second semiconductor refrigeration sheet 72, the shell bottom plate 92, the first end plate 93, the second end plate 94, the first side plate 95 and the second side plate 96; the first gas-guide tube 3 is communicated with the cooling channel 64; the second air duct 7 is communicated with the cooling channel 64; the first end plate 93 and the second end plate 94 at the positions on both sides of the first heat dissipation channel 65 and the second heat dissipation channel 66 are provided with vent holes.

As shown in fig. 10 and 11, it further includes a fourth airway tube 15, a fifth airway tube 16, a second pump 55, a sixth airway tube 26, a second hole 50, a seventh airway tube 58, a flow divider 56, an eighth airway tube 59, a fourth hole 52, a ninth airway tube 60, and a third hole 51, as shown in fig. 9, wherein the bottom plate 48 is provided with the second hole 50, the third hole 51, and the fourth hole 52; the second hole 50 is positioned between the second fixing block 31 and the third fixing block 35; the third and fourth holes 51 and 52 are located between the first fixing block 17 and the third plate 46; as shown in fig. 4, 9, 10, and 11, the second pump 55 is mounted on the third fixed block 35; the first pump 34 is located between the second pump 55 and the motor 8; the second pump 55 is connected with the rotating shaft of the first pump 34 through a coupler, one end of the sixth air duct 26 is installed on the second pump 55, and the other end of the sixth air duct is installed in the second hole 50; one end of the seventh air duct 58 is mounted on the second pump 55, and the other end is mounted with the flow divider 56; the eighth gas duct 59 has one end mounted to the flow divider 56 and the other end mounted to the second end plate 94; the eighth air duct 59 is communicated with the first heat dissipation channel 65; one end of the fourth air duct 15 is mounted on the first end plate 93, and the other end is mounted in the fourth hole 52; the fourth air duct 15 is communicated with the first heat dissipation channel 65; the ninth airway tube 60 is mounted at one end to the flow splitter 56 and at the other end to the second end plate 94; the ninth air duct 60 is communicated with the second heat dissipation channel 66; one end of the fifth air duct 16 is mounted on the first end plate 93, and the other end is mounted in the third hole 51; the fifth air duct 16 is communicated with the second heat dissipation channel 66.

As shown in fig. 14, the rectangular tube 63 has a width to height ratio of 10: 1.

The igniter 32 of the present invention functions as: the igniter 32 may ignite the gas emerging from the first gas hole 40.

The ratio of the width to the height of the first housing 6 or the rectangular tube 63 is 10:1, and the passage of such a ratio has the effect of extinguishing the gas burning through the passage, preventing the flame from being sucked back into the elastic bag 14, thereby causing an explosion.

The thermocouple 33 can transmit an identification signal to the chip which controls the rotation of the motor 8 and the opening and closing of the solenoid valve. The outer circular surface of the gas stove shell 5 is provided with the air suction ring 2, and the functions are as follows: the gas can enter and exit the annular cavity 43 through the second air hole 38 and the third air hole 41, and the gas in the annular cavity 43 can enter and exit the first gas-guide tube 3 through the fourth air hole 42.

The first semiconductor refrigerating sheet 71 and the second semiconductor refrigerating sheet 72 have the following functions: on the one hand, the temperature in the cooling channel 64 can be maintained below the ignition temperature of the combustion gases; on the other hand, heat can be transferred to the first heat dissipation channel 65 and the second heat dissipation channel 66, and the effect of the channels on extinguishing the burning gas is further improved.

The cooling channels 64 function to: after being sucked into the cooling channel 64, the high-temperature combustion gas can be cooled, and finally the high-temperature combustion gas can be extinguished; the reverse inhalation of flames into the elastic bag 14 is prevented, causing the effect of explosion of the elastic bag 14.

The first heat dissipation channel 65 and the second heat dissipation channel 66 function to dissipate heat at the hot end of the first semiconductor chilling plate 71 and the second semiconductor chilling plate 72 by using the convection action of the air flow.

The motor 8 in the invention has the following functions: on the one hand, the motor 8 can drive the first pump 34 and the second pump 55 to work; on the other hand, the motor 8 can drive the first gear 80 to rotate via the first shaft 62, the first bevel gear set 9, the second shaft 18, the second bevel gear set 20, the third shaft 21, the third bevel gear set 24 and the fourth shaft 68.

In the invention, the second gear 82 and the third gear 81 are both arranged on a fifth shaft 84, and the diameter of the first gear 80 is larger than that of the second gear 82; the diameter of the third gear 81 is greater than the diameter of the second gear 82, and the gear ratio at which the input gear 83 is transferred to the second output gear 78 via the second gear 82 and the third gear 81 is less than the gear ratio at which the input gear 83 is transferred to the first output gear 79 via the first gear 80.

In the actuator 75, the first gear 80 meshes with the input gear 83; the first gear 80 is engaged with the first output gear 79; the second gear 82 meshes with the input gear 83; the third gear 81 is engaged with the second output gear 78; the first output gear 79 and the second output gear 78 are both meshed with the rack 12, and the first output gear 79 and the second output gear 78 are staggered: on the one hand, as shown in fig. 28 (b), when the motor 8 rotates forward, the motor 8 drives the input gear 83 to rotate counterclockwise through the first shaft 62, the first bevel gear combination 9, the second shaft 18, the second bevel gear combination 20, the third shaft 21, the third bevel gear combination 24 and the fourth shaft 68, the input gear 83 drives the first output gear 79 to rotate counterclockwise through the first gear 80, and then the first output gear 79 drives the rack 12 to move slowly upward, in this process, the second gear 82 moves toward the second spring 88 under the driving action of the input gear 83, and then the third gear 81 is disengaged from the second output gear 78; on the other hand, as shown in fig. 28 (c), when the motor 8 rotates reversely, the motor 8 drives the input gear 83 to rotate clockwise via the first shaft 62, the first bevel gear combination 9, the second shaft 18, the second bevel gear combination 20, the third shaft 21, the third bevel gear combination 24 and the fourth shaft 68, the input gear 83 drives the second output gear 78 to rotate clockwise via the second gear 82 and the third gear 81, the counterclockwise rotation speed of the second output gear 78 is faster than the clockwise rotation speed of the first output gear 79, and the second output gear 78 drives the rack 12 to move down rapidly, in this process, the first gear 80 is driven by the input gear 83, the first gear 80 moves in the direction of the first spring 85, and the first gear 80 is disengaged from the first output gear 79. The rapid downward movement of the rack 12 enables the gas to be rapidly exhausted from the flexible bladder 14, preventing back-suction of the flame.

One end of the rack 12 is provided with a sliding plate 13, and the other end is inserted into the rack guide rail 28; one end of the elastic air bag 14 is arranged on the sliding plate 13, and the other end is arranged on the cylindrical fixed plate; when the rack 12 moves upward, the rack 12 can stretch the elastic airbag 14 through the sliding plate 13, thereby increasing the air storage space of the elastic airbag 14; when the rack 12 moves downward, the rack 12 can compress the elastic airbag 14 through the sliding plate 13, thereby reducing the air storage space of the elastic airbag 14; when the rack 12 moves downward to the maximum position by the actuator 75, the elastic air cell 14 is squashed, and the air storage space of the elastic air cell 14 is almost zero. The second output gear 78 is used to make the sliding plate 13 move downwards rapidly, so that the sliding plate 13 can compress the elastic air bag 14 rapidly, and the gas in the elastic air bag 14 is discharged rapidly. The rapid downward movement of the rack 12 enables the gas to be rapidly exhausted from the flexible bladder 14, preventing back-suction of the flame.

In the invention, a gas channel is formed by the first gas-guide tube 3, the cooling channel 64, the second gas-guide tube 7, the first pump 34 and the third gas-guide tube 10; then, when the first pump 34 is operated in the forward direction, the gas sucked into the annular cavity 43 can enter the elastic air bag 14 through the first air duct 3, the cooling channel 64, the second air duct 7, the first pump 34 and the third air duct 10; when the first pump 34 is operated in a reverse rotation mode, the gas in the elastic air bag 14 can enter the annular cavity 43 through the third gas duct 10, the first pump 34, the second gas duct 7, the cooling channel 64 and the first gas duct 3, and the gas in the annular cavity 43 emerges from the third gas hole 41 and the second gas hole 38.

In the invention, the fourth air duct 15, the first heat dissipation channel 65, the eighth air duct 59, the flow divider 56, the seventh air duct 58, the second pump 55 and the sixth air duct 26 form a first air flow channel; then under the operation of the second pump 55, air can flow in the first air flow channel, thereby dissipating heat from the first semiconductor cooling fins 71.

In the invention, the fifth air duct 16, the second heat dissipation channel 66, the ninth air duct 60, the flow divider 56, the seventh air duct 58, the second pump 55 and the sixth air duct 26 form a second air flow channel; then under the operation of the second pump 55, air can flow in the second air flow channel, thereby dissipating heat from the second semiconductor chilling plate 72.

The specific implementation mode is as follows: when the gas stove is not used, the electromagnetic valve is in a closed state; the actuator 75 is not operated and the first gear 80 is engaged with the first output gear 79; the third gear 81 meshes with the second output gear 78; with the rack 12 at the lowermost end of the rack guide 28, the resilient bladder 14 is in a collapsed condition.

When the gas stove is used, the electromagnetic valve is opened, the motor 8 is started in a forward rotation mode, and before the igniter 32 ignites the gas, the temperature signal identified by the thermocouple 33 is smaller than 500 ℃; in the process of forward rotation of the motor 8, on one hand, the motor 8 drives the input gear 83 to rotate counterclockwise through the first shaft 62, the first bevel gear combination 9, the second shaft 18, the second bevel gear combination 20, the third shaft 21, the third bevel gear combination 24 and the fourth shaft 68, the input gear 83 drives the first output gear 79 to rotate counterclockwise through the first gear 80, the first output gear 79 drives the rack 12 to move slowly and upwards, the rack 12 can stretch the elastic airbag 14 through the sliding plate 13, and then the air storage space of the elastic airbag 14 is increased and negative pressure is generated; on the other hand, the motor 8 drives the first pump 34 and the second pump 55 to rotate forward, and under the action of the forward rotation of the first pump 34 and the negative pressure of the elastic airbag 14, the fuel gas which is not ignited by the igniter 32 is sucked into the annular cavity 43 through the second air hole 38 and the third air hole 41; the gas sucked into the annular cavity 43 can enter the elastic air bag 14 through the gas channel, and the elastic air bag 14 stores the unfired gas; under the normal rotation of the second pump 55, the air flows through the first air flow passage and the second air flow passage, and the heat is dissipated from the first semiconductor chilling plate 71 and the second semiconductor chilling plate 72. When the solenoid valve is opened, the temperature recognized by thermocouple 33 is still less than 500 degrees after 2 seconds, and the solenoid valve is closed.

When the igniter 32 ignites the fuel gas, the temperature signal identified by the thermocouple 33 is greater than 500 ℃, the thermocouple 33 transmits the signal to the motor 8 through the chip, and the motor 8 rotates reversely; during the reverse rotation of the motor 8, on one hand, the motor 8 drives the first gear 80 to rotate clockwise through the first shaft 62, the first bevel gear combination 9, the second shaft 18, the second bevel gear combination 20, the third shaft 21, the third bevel gear combination 24 and the fourth shaft 68, the input gear 83 drives the second output gear 78 to rotate clockwise through the second gear 82 and the third gear 81, the counterclockwise rotation speed of the second output gear 78 is faster than the clockwise rotation speed of the first output gear 79, the second output gear 78 drives the rack 12 to move rapidly downwards, the rack 12 can rapidly compress the elastic airbag 14 through the sliding plate 13, so that the gas storage space of the elastic airbag 14 is rapidly reduced, the stored gas is rapidly discharged into the combustion stove housing through the gas channel, the annular cavity 43, the third gas hole 41 and the second gas hole 38 under the compression of the elastic airbag 14 and the reverse rotation of the first pump 34, and the stored gas is combusted and utilized, the gas-liquid separator plays a role in effectively utilizing the underutilized gas. The motor 8 is stopped after 5 seconds of reverse rotation.

When the gas stove suddenly encounters a flameout condition in the normal combustion process, the gas still emerges at the moment; after that, when the temperature recognized by the thermocouple 33 decreases from a temperature higher than 500 degrees to 500 degrees or lower, the electromagnetic valve is closed 2 seconds later.

In conclusion, the invention has the main beneficial effects that: the unignited gas of the gas stove can be sucked into the elastic air bag 14 through the gas channel and stored, and after the gas stove is ignited successfully, the gas in the elastic air bag 14 can be quickly discharged into the gas stove through the gas channel again for combustion and utilization; in addition, when the gas stove is suddenly flamed out, the electromagnetic valve can close the air inlet of the gas stove according to the received signal, so that the safe use of the gas stove is ensured; the invention has simple structure and better use effect.

Claims

1. The utility model provides a gear drive's closed gas-cooker safety mechanism which characterized in that: the gas stove comprises a combustion head, a gas suction ring, a first gas guide pipe, a main shell, a gas stove shell, a first shell, a second gas guide pipe, a motor, a first bevel gear combination, a third gas guide pipe, a rack, a sliding plate, an elastic air bag, a first fixed block, a second shaft, a first fixed plate, a second bevel gear combination, a third shaft, a second fixed plate, a third bevel gear combination, an execution mechanism, a rack guide rail, a cylindrical fixed block, a second fixed block, an igniter, a thermocouple, a first pump, a third fixed block, a first hole, an annular tangent plane, a second gas hole, a combustion groove, a first gas hole, a third gas hole, a fourth gas hole, an annular cavity, a fourth fixed block, a guide rail groove, a pump shaft, a first shaft and a fourth shaft, wherein the main shell is composed of a first plate, a second plate, a third plate, a fourth plate, a; the top plate is provided with a first hole; the second plate is provided with a first fixing plate and a second fixing plate; a first fixed block, a second fixed block, a third fixed block and a fourth fixed block are arranged on the bottom plate; the second fixing block is positioned at the position of the bottom plate close to the first plate; a guide rail groove is formed in the upper plate surface of the second fixing block, which is close to one corner of the second plate; the first fixed block is positioned between the second fixed block and the third plate; the third fixed block and the fourth fixed block are positioned between the second fixed block and the first fixed block; the gas stove shell is arranged on the top plate; the gas stove shell is provided with a combustion groove; the upper end surface of the gas stove shell is provided with an annular tangent plane; the combustion head is arranged in the middle of the bottom groove surface of the combustion groove; a plurality of first air holes are uniformly formed in the circumferential direction of the outer circular surface of the combustion head; a plurality of second air holes are uniformly formed between the annular tangent plane and the outer circular surface of the gas stove shell along the circumferential direction; the gas suction ring is arranged on the outer circular surface of the gas stove shell; the air suction ring is provided with an annular cavity; a plurality of third air holes are uniformly formed in the inner circular surface of the air suction ring in the circumferential direction; the third air hole is communicated with the annular cavity; each second air hole is communicated with a corresponding third air hole; a fourth air hole is formed in the outer circular surface of the air suction ring; the fourth air hole is communicated with the annular cavity; the igniter is arranged on the bottom groove surface of the combustion groove through a rod; the thermocouple is arranged on the bottom groove surface of the combustion groove through a rod;

the first shell is arranged on the first fixed block; the first shell is composed of a shell top plate, a shell bottom plate, a first end plate, a second end plate, a first side plate and a second side plate;

the motor is arranged on the fourth fixed block; the first pump is arranged on the third fixed block; one end of the pump shaft is connected with the motor shaft, and the other end of the pump shaft is connected with the first pump through the coupler; one end of the first shaft is connected with a motor shaft, and the other end of the first shaft is provided with a first bevel gear combination; the second shaft penetrates through the first fixing plate, one end of the second shaft is connected with the first bevel gear assembly, and the other end of the second shaft is provided with a second bevel gear assembly; a third shaft penetrates through the second fixing plate, one end of the third shaft is connected with the second bevel gear combination, and a third bevel gear combination is installed at the other end of the third shaft; the fourth shaft penetrates through the third fixing plate, one end of the fourth shaft is connected with the third bevel gear in a combined mode, and the other end of the fourth shaft is provided with an actuating mechanism;

the rack guide rail is arranged in the guide rail groove; one end of the rack is nested in the rack guide rail, and the other end of the rack is provided with a sliding plate; the cylindrical fixed block is arranged on the second fixed block; one end of the elastic air bag is arranged on the cylindrical fixed block, and the other end of the elastic air bag is arranged on the sliding plate; the actuating mechanism is matched with the rack;

the executing mechanism comprises a fifth fixing block, a sixth fixing block, a second output gear, a first gear, a third gear, a second gear, an input gear, a fifth shaft, a first spring, a first guide block, a first guide groove, a second spring, a second guide block and a second guide groove, wherein the input gear is arranged on the fourth shaft; the first output gear and the second output gear are both arranged on the second plate through shafts; the fifth fixing block and the sixth fixing block are arranged on the second plate; a first guide groove is formed in the fifth fixing block; the first guide block is arranged in the first guide groove; one end of the first spring is arranged on the first guide block, and the other end of the first spring is arranged on the groove surface of the first guide groove; the first spring is positioned in the first guide groove; the first gear is arranged on the first guide block through a shaft; the first gear slides in the first guide groove through the first guide block; a second guide groove is formed in the sixth fixing block; the second guide block is arranged in the second guide groove; one end of the second spring is arranged on the second guide block, and the other end of the second spring is arranged on the groove surface of the second guide groove; the second spring is positioned in the first guide groove; the third gear is arranged on the second guide block through a fifth shaft; the third gear slides in the second guide groove through the second guide block; the second gear is arranged on the outer circular surface of the fifth shaft and is positioned between the third gear and the second guide block; the first gear is meshed with the input gear; the first gear is matched with the first output gear; the second gear is meshed with the input gear; the third gear is matched with the second output gear; the first output gear and the second output gear are meshed with the rack;

one end of the first air duct is arranged in the fourth air hole, and the other end of the first air duct passes through the first hole and is arranged on the round hole of the first end plate; one end of the second air duct is arranged on the round hole of the second end plate, and the other end of the second air duct is connected with the first pump; one end of the third air duct is arranged on the first pump, and the other end of the third air duct is connected with the elastic air bag; the third air duct is communicated with the elastic air bag;

the groove direction of the first guide groove is vertical to a connecting line of the circle center of the input gear and the circle center of the first gear; the groove direction of the second guide groove is vertical to a connecting line of the circle center of the input gear and the circle center of the second gear;

the diameter of the first gear is larger than that of the second gear; the diameter of the third gear is larger than that of the second gear;

the first bevel gear combination consists of two bevel gears with axes at 90 degrees; the second bevel gear combination consists of two bevel gears with axes which are 90 degrees to each other; the third bevel gear combination consists of two bevel gears with axes at 90 degrees;

when the rack is positioned at the bottommost end of the rack guide rail, the elastic air bag is in a flattened state; when the actuating mechanism does not operate, the first gear is meshed with the first output gear; the third gear is meshed with the second output gear;

the ratio of the width to the height of the first shell is 10: 1.

2. The gear-driven closed gas stove safety mechanism according to claim 1, characterized in that: the gas inlet and outlet of the combustion head are controlled by an electromagnetic valve.

3. A gear-driven closed gas range safety mechanism as claimed in claim 2, wherein: and when the switch of the gas stove is opened, the electromagnetic valve is opened, and after 2 seconds, the temperature identified by the thermocouple is less than 500 ℃, and the electromagnetic valve is closed.

4. A gear-driven closed gas range safety mechanism as claimed in claim 3, wherein: when the temperature recognized by the thermocouple is reduced from a temperature higher than 500 degrees to 500 degrees or lower, the electromagnetic valve is closed after 2 seconds.

5. The gear-driven closed gas stove safety mechanism according to claim 1, characterized in that: the first shell is internally provided with a rectangular pipe, a first semiconductor refrigerating sheet and a second semiconductor refrigerating sheet, wherein one end of the rectangular pipe is arranged on the first end plate, and the other end of the rectangular pipe is arranged on the second end plate; two sides of the rectangular pipe are respectively connected with the first side plate and the second side plate; the rectangular pipe is positioned in the middle of the first shell; the rectangular tube, the first end plate and the second end plate form a cooling channel; the first semiconductor refrigeration piece is arranged on the lower pipe surface of the rectangular pipe, one end of the first semiconductor refrigeration piece is connected with the first end plate, and the other end of the first semiconductor refrigeration piece is connected with the second end plate; a first heat dissipation channel is formed by the first semiconductor refrigeration sheet, the shell top plate, the first end plate, the second end plate, the first side plate and the second side plate; the second semiconductor refrigeration piece is arranged on the upper pipe surface of the rectangular pipe, one end of the second semiconductor refrigeration piece is connected with the first end plate, and the other end of the second semiconductor refrigeration piece is connected with the second end plate; a second heat dissipation channel is formed by the second semiconductor refrigeration sheet, the shell bottom plate, the first end plate, the second end plate, the first side plate and the second side plate; the first air duct is communicated with the cooling channel; the second air duct is communicated with the cooling channel; the first end plate and the second end plate at the two sides of the first heat dissipation channel and the second heat dissipation channel are provided with vent holes.

6. The gear-driven closed gas stove safety mechanism according to claim 5, characterized in that: the device also comprises a fourth air duct, a fifth air duct, a second pump, a sixth air duct, a second hole, a seventh air duct, a flow divider, an eighth air duct, a fourth hole, a ninth air duct and a third hole, wherein the bottom plate is provided with the second hole, the third hole and the fourth hole; the second hole is positioned between the second fixed block and the third fixed block; the third hole and the fourth hole are positioned between the first fixing block and the third plate; the second pump is arranged on the third fixed block; the first pump is positioned between the second pump and the motor; the second pump is connected with a rotating shaft of the first pump through a coupler, one end of a sixth air duct is installed on the second pump, and the other end of the sixth air duct is installed in the second hole; one end of the seventh air duct is arranged on the second pump, and the other end of the seventh air duct is provided with a flow divider; one end of the eighth air duct is arranged on the flow divider, and the other end of the eighth air duct is arranged on the second end plate; the eighth air duct is communicated with the first heat dissipation channel; one end of the fourth air duct is arranged on the first end plate, and the other end of the fourth air duct is arranged in the fourth hole; the fourth air duct is communicated with the first heat dissipation channel; one end of the ninth air duct is arranged on the flow divider, and the other end of the ninth air duct is arranged on the second end plate; the ninth air duct is communicated with the second heat dissipation channel; one end of the fifth air duct is arranged on the first end plate, and the other end of the fifth air duct is arranged in the third hole; the fifth air duct is communicated with the second heat dissipation channel.

7. The gear-driven closed gas stove safety mechanism according to claim 5, characterized in that: the ratio of the width to the height of the rectangular tube is 10: 1.