TWM661989U - Gas burner with ignition and combustion-supporting functions - Google Patents

Abstract

A gas burner with ignition and combustion-supporting functions comprises a main body, wherein an ignition device and a combustion-supporting device are arranged in the main body, wherein the flame generated by the ignition device is sprayed out by a flame spray pipe, and the air flow generated by the combustion-supporting device is blown out by an air supply pipe, and the flame spray pipe and the air supply pipe are a double-tube design, so that the flame and the air flow form a diversion effect, and have both ignition and combustion-supporting functions, thereby increasing the convenience of using the gas burner.

Description

Gas burner with ignition and combustion-supporting functions

This case concerns a gas burner, particularly a gas burner with ignition and combustion-supporting functions.

Fire is indispensable in our daily life. It allows us to cook food, provide lighting, and even forge, weld, and solder metal objects. Take gas as an example. Whether it is a hand-held gas burner or a portable gas stove, it is convenient to use it to ignite objects or cook food. Therefore, gas is irreplaceable today.

Take barbecue (BBQ) as an example. Usually, a ignition source, such as a fire starter, is used to ignite a combustible material, such as charcoal, to form a flameless state, and then food, such as meat, can be grilled. Since the combustion efficiency of the aforementioned fire starter is poor, charcoal is not easy to ignite, which troubles users. Therefore, some users also try to ignite charcoal with ignition sources such as gas blowers or the aforementioned gas burners. Such gas blowers or gas burners have the advantages of concentrated flame, strong firepower, fear of strong wind blowing out, and continuous fire, so they can quickly ignite charcoal.

In fact, in addition to the aforementioned ignition source and combustibles, the necessary conditions for the combustion of substances also require an oxidant, such as oxygen. In other words, the combustion of combustibles requires the support of oxidants, and the most common oxidant in nature is oxygen, so most combustion requires oxygen. Furthermore, we all know that the main reason why wind can be used to help the burning of fire is that it can bring more oxygen and drive the flow of gas to make the combustibles more fully contact with oxygen, thereby fueling the fire. Therefore, in the aforementioned barbecue process, when the gas burner lights the charcoal, the user usually uses various fanning or air supply methods to blow the generated airflow to the charcoal to provide oxygen to the charcoal and assist the combustion of the charcoal.

The aforementioned gas burners or gas burners only provide the ignition function but not the combustion-supporting function, which is a shortcoming. Therefore, how to integrate the ignition and combustion-supporting functions to provide more convenient operation when the combustibles are burning is a topic that the relevant industry urgently needs to break through.

The main purpose of this case is to provide a gas burner with ignition and combustion-supporting functions, which has an ignition device and a combustion-supporting device in a main body, wherein the flame generated by the ignition device is sprayed out by a flame spray tube, and the air flow generated by the combustion-supporting device is blown out by an air supply pipe, and the flame spray tube and the air supply pipe are a double-tube design, so that the flame and the air flow (that is, wind power) form a diversion effect, and have both ignition and combustion-supporting functions, thereby increasing the convenience of using the gas burner.

The secondary purpose of this case is to provide a gas burner with ignition and combustion-supporting functions, the ignition device includes an ignition switch that can ignite the gas and generate a flame, and the combustion-supporting device includes a fan switch that can start an electric motor and drive an impeller to rotate to generate an air flow; when the ignition switch is activated, the fan switch cannot be activated, and conversely, when the fan switch is activated, the ignition switch cannot be activated, that is, the ignition switch and the fan switch cannot be activated at the same time to ensure that the two will not operate at the same time.

Another object of the present invention is to provide a gas burner with ignition and combustion-supporting functions, wherein the ignition switch and the fan switch are each provided with a safety key to avoid accidental activation and increase safety in use.

In order to achieve the above-mentioned purpose, the technical means adopted in this case is to provide a gas burner with ignition and combustion-supporting functions, which includes a main body, and an ignition device and a combustion-supporting device installed in the main body; wherein a control part is provided on the top of the main body, and the control part is used to install an ignition switch of the ignition device and a fan switch of the combustion-supporting device; when the ignition switch is pressed, it can simultaneously control a gas supply mechanism and a piezoelectric to operate, so as to supply the gas to a ignition mechanism, and after the gas is mixed with air in the ignition mechanism, it is discharged by a fan from the ignition mechanism. The flame is ejected from a nozzle in a flame tube extending from a first pipe opening at the front end of the main body, and the piezoelectric device transmits high-voltage static electricity to the flame nozzle, thereby igniting a mixed gas into a flame ejected from the flame tube; and the fan switch can control a battery module after being pushed, and the power supply between a motor and an impeller is connected, and the impeller is driven to operate, so that the generated air flow is blown out through an air supply pipe extending from a second pipe opening at the front end of the main body, wherein the flame tube and the air supply pipe are of a double-tube design, so that the flame and the air flow form a diversion effect.

In one embodiment, the ignition switch partially extends out of an opening of the control portion, and the fan switch is arranged in a rear slide groove behind the opening; a front tenon is protruded in front of the fan switch, and a rear stopper protrudes behind the ignition switch; when the ignition switch is in a pressed state, the rear stopper will form an interference blocking effect on the front tenon, so that the fan switch cannot be pushed; when the ignition switch is not in a pressed state, the rear stopper and the front tenon form a misaligned state, so that the fan switch can be pushed.

In one embodiment, the rear section of the main body forms a handle for holding with one hand, and the ignition device includes a gas cylinder arranged in the handle, and the gas supply mechanism is arranged in front of the gas cylinder, and the gas supply mechanism includes an air outlet valve installed in front of the gas cylinder, an air supply hose with an upstream end connected to the air outlet valve, a gas nozzle arranged at a downstream end of the gas supply hose, and an air outlet pressure plate with one end connected to the air outlet valve, and the air outlet pressure plate is pivoted on a pivot at the lower part of the inner part of the control part.

In one embodiment, the outlet valve is further sleeved with an adjusting ring, and a lever is extended laterally from the adjusting ring, and the lever passes through a long adjusting slot preset in the main body; when the lever is turned, the adjusting ring will cause the outlet valve to rotate synchronously to adjust the supply of the gas.

In one embodiment, a pressing portion above the ignition switch extends out from the opening, and the piezoelectric is sleeved between a chamber on one side of the ignition switch and a bottom blocking wall inside the control portion. The piezoelectric is provided with a wire extending to the flamethrower and a return wire connected to the flamethrower mechanism.

In one embodiment, the ignition device further comprises a continuous button, the continuous button sleeve is arranged in a button hole of the main body, and a stopper having a buckle groove and at least two arms are extended inward from the periphery of the continuous button, the stopper and the at least two arms pass through an inner blocking wall inside the button hole, and the stopper effect formed by a hook portion of each of the at least two arms and a corresponding inner blocking hole is utilized to prevent the continuous button from coming out of the button hole; and The ignition switch forms a buckle at the position corresponding to the buckle groove, which enables the buckle groove to be buckled or separated; when the ignition switch remains in a pressed state, it continuously contacts the air outlet pressure plate, allowing the air outlet valve to maintain a continuous air supply state; or when the ignition switch returns to a non-pressed state, the air outlet valve retracts to a starting position without gas supply due to the elastic restoring force, and drives the air outlet pressure plate back to its original position to cut off the gas supply.

In one embodiment, a first spring tenon which is sleeved with a first restoring spring is disposed between the continuing button and the inner barrier wall, and the first spring tenon can pass through the inner barrier wall.

In one embodiment, a base is provided at the bottom of the front section of the main body, and a storage space for installing the battery module is formed inside the base; wherein the battery module includes a battery box capable of installing a plurality of batteries, and a box cover for opening or closing a bottom opening of the battery box; or the battery module includes a rechargeable battery.

In one embodiment, the ignition device further includes an ignition safety key, a push button above the ignition safety key extends from a front slide groove in front of the opening, and a second restoring spring is provided between the front end of a base below and a front baffle wall inside the front slide groove, wherein a second spring tenon that is sleeved with the second restoring spring extends from the front end of the base, and the second spring tenon can pass through the front baffle wall; and a rear baffle of the base abuts against a flange extending from the ignition switch, so that the ignition safety key interferes with the ignition switch and cannot be pressed.

In one embodiment, the flame-spraying mechanism includes a fixed tube made of metal, one end of which is provided with a gas inlet hole for inserting the gas nozzle, and at least one air intake hole is opened in front of the gas inlet hole, and the at least one air intake hole is connected to a mixing inner tube inside the fixed tube, so that the gas sprayed by the gas nozzle will drive the air to enter from the at least one air intake hole, and enter the mixing inner tube together to be mixed into the mixed gas, and the mixed gas is sprayed through the flame-spraying nozzle connected to a downstream end of the mixing inner tube.

In one embodiment, the outer portion of the mixing inner tube is provided with a connecting portion to which the flame tube can be connected. During assembly, at least one connector is passed through a corresponding tube hole of the flame tube and connected to the connecting portion, so that the flame tube and the fixed tube can be combined into one.

In one embodiment, the burner nozzle is arranged in a heat insulating member made of ceramic material, and the heat insulating member is covered by the burner tube; the wire passes through the heat insulating member, and a free end of the wire is spaced apart from the burner nozzle, so that the transmitted high-voltage static electricity ignites the mixed gas sprayed from the burner nozzle; and a free end of the return wire is connected to an end hole opened in the fixed tube, so that the piezoelectric, the wire, the fixed tube and the return wire form an electrical circuit.

In one embodiment, the combustion-supporting device includes, in addition to the battery module, the motor and the impeller, an air hood, one side of which radially extends a casing connected to the motor, and the other side is provided with a wheel chamber for accommodating the impeller, wherein an output shaft of the motor extends into the wheel chamber and is connected to the impeller, and the wheel chamber extends a neck tube and a connecting ring connected to a free end of the neck tube, and the connecting ring is provided for connecting the air supply pipe.

In one embodiment, the rear of the wind hood is further connected to a partition, which includes a conductive fixing column and a support column that is spaced apart from the conductive fixing column and for a conductive elastic member to be socketed and positioned, wherein the conductive elastic member extends an elastic connecting arm toward the conductive fixing column, so that the conductive elastic member and the conductive fixing column become a circuit switch.

In one embodiment, the conductive elastic member is controlled by the fan switch, wherein a detent member is disposed adjacent to one side of the front tenon of the fan switch and overlaps with the elastic connecting arm.

In one embodiment, the fan switch has a pair of first guide rails on both sides, and the pair of first guide rails are connected to a pair of first guide grooves arranged opposite to each other below the rear slide groove, so that the fan switch can move in the rear slide groove.

In one embodiment, the fan switch has a hollow slot in the central area, and a fan safety key is further integrated in the hollow slot. The fan safety key includes an elastic bracket connected to the fan switch, a button protruding from the front of the elastic bracket, and a lock bolt protruding radially from the button, and a lock slot for accommodating the lock bolt is radially opened in the rear sliding groove corresponding to the position of the lock bolt, so that the lock bolt is interfered by the lock slot, and the fan switch cannot be pushed forward, forming an upper locked state.

In one embodiment, the fan switch further includes a push piece plugged into its top surface, and the push piece and the adjacent surface of the fan switch are provided with a tenon and a slot that can form a plug-in connection, and a through hole for the button to pass through is opened corresponding to the position of the button, so that the push piece can drive the fan switch to move synchronously.

In one embodiment, the push piece has a pair of second guide rails on both sides, and the pair of second guide rails are connected to a pair of second guide grooves arranged opposite to each other in the rear slide groove, so that the push piece and the fan switch can move together in the rear slide groove.

In one embodiment, a pair of sliding tenons are arranged in parallel on both sides of the bottom surface of the push piece and straddle a bottom wall of the rear sliding groove.

As shown in FIG. 1 to FIG. 13 , basically, the gas burner of the present invention comprises a body 1 , an ignition device 2 and a combustion-supporting device 3 .

Please refer to FIG. 1 . The main body 1 is formed by a left shell 11 and a right shell 12 connected together, so that the gas burner has a shape similar to a long rod. As shown in the figure, the rear section of the main body 1 forms a handle 13 for the user to hold with one hand. The front section of the main body 1 is provided with a base 14 at the bottom. As shown in FIG. 2 and FIG. 3 , the base 14 has a receiving space 141 formed inside, and a battery module 31 of the combustion-supporting device 3 is arranged in the receiving space 141. In one embodiment, the battery module 31 includes a battery box 311 and a cover 312 for opening or closing a bottom opening of the battery box 311. A plurality of dry batteries can be installed in the battery box 311 to provide a motor 32, such as a motor, with the necessary driving power to drive an impeller 33. In another embodiment, the battery module 31 includes a rechargeable battery, and the rechargeable battery can also provide the motor 32 with the necessary driving power to drive the impeller 33.

The front top of the main body 1 is provided with a control portion 15, on which an ignition switch 23, an ignition safety key 26 and a continue button 25 of the ignition device 2 and a fan switch 35 and a fan safety key 36 of the combustion-supporting device 3 are installed, so as to facilitate the control of the ignition device 2 and the combustion-supporting device 3.

In addition, a first pipe opening 16 for a flame tube 28 to extend and a second pipe opening 17 for an air supply pipe 38 to extend are provided adjacent to the front end of the main body 1, so that the flame generated by the ignition device 2 is ejected from an outlet of the flame tube 28, and the air flow generated by the combustion-supporting device 3 is blown out from the outlet of the air supply pipe 38.

Furthermore, a plurality of ventilation slots 111 are provided in a housing, such as the left housing 11, corresponding to the position of the impeller 33 to facilitate the entry of air, which is blown out from the outlet of the air supply pipe 38 after the impeller 33 rotates.

Please also refer to Figures 1 to 8. The ignition device 2 includes a gas cylinder 21 disposed in the handle 13. The gas cylinder 21 is used to store liquid gas, and the rear of the gas cylinder 21 has a known filling nozzle 211 for replenishing liquid gas (fuel).

A gas supply mechanism 22 is installed in front of the gas cylinder 21. The gas supply mechanism 22 is well-known and includes an air outlet valve 221 installed in front of the gas cylinder 21, a gas supply hose 222 with an upstream end sleeved on the air outlet valve 221, a gas nozzle 223 provided at a downstream end of the gas supply hose 222, and an air outlet pressure plate 224 with one end sleeved on the air outlet valve 221, and the air outlet pressure plate 224 is pivotally connected to a pivot 121 at the lower inner part of the control unit 15.

In order to adjust the gas supply of the air outlet valve 221, the air outlet valve 221 is further connected to an adjusting ring 225, and a lever 226 extends laterally from the adjusting ring 225. The lever 226 passes through a long adjusting groove 122 preset in the right shell 12 to facilitate turning the lever 226 and prompt the adjusting ring 225 to synchronously drive the air outlet valve 221 to rotate to adjust the gas supply.

A pressing portion 231 on the top of the ignition switch 23 radially extends from an opening 151 of the control portion 15, and a piezoelectric device 24 is sleeved between a chamber 232 on one side of the ignition switch 23 and a bottom stop wall 152 inside the control portion 15. As shown in FIG6 , when the pressing portion 231 of the ignition switch 23 is pressed, a head portion 241 on the top of the piezoelectric device 24 is compressed by the ignition switch 23, so that a high-voltage static electricity is generated and transmitted through a wire 242 extending laterally; furthermore, the bottom of the piezoelectric device 24 is connected to a return wire 243 extending laterally. Therefore, when the pressing portion 231 of the ignition switch 23 is pressed, the other end of the air outlet pressure plate 224 is triggered by the ignition switch 23 to rotate, causing the air outlet pressure plate 224 to produce a lever effect so as to pull out the air outlet valve 221 and form an open gas supply pattern, so that the liquid gas in the gas cylinder 21 is vaporized and enters the gas supply hose 222 from the air outlet valve 221, and is rapidly ejected from the air nozzle 223 to enter an ignition mechanism 27 described later.

The gas burner further includes a continuous button 25, as shown in Figures 2 and 5, the continuous button 25 is sleeved in a button hole 112 radially opened in the left shell 11, and a stopper 251 with a buckle groove 252 and at least two arms 253 are radially extended inward from the periphery of the continuous button 25. The stopper 251 and the at least two arms 253 both pass through an inner blocking wall 113 inside the button hole 112, and the stopper effect formed by a hook portion 254 of each of the at least two arms 253 and a corresponding inner blocking hole 114 is used to prevent the continuous button 25 from coming out of the button hole 112. In addition, a first restoring spring 255 is provided between the continuing button 25 and the inner barrier wall 113, wherein a first spring tenon 256 which is sleeved with the first restoring spring 255 extends out from the continuing button 25, and the first spring tenon 256 can pass through the inner barrier wall 113, so that the continuing button 25 can smoothly compress the first restoring spring 255, so that the first restoring spring 255 can store energy.

Furthermore, the ignition switch 23 forms a buckle 233 at the position corresponding to the buckle groove 252, which allows the buckle groove 252 to be buckled. As shown in Figure 7. When the ignition switch 23 is in the pressed state, the user presses the continuous button 25 and compresses the first return spring 255, and the user can stop pressing the ignition switch 23, so that the buckle groove 252 and the buckle 233 form a buckled interference state, so that the ignition switch 23 cannot return to the starting position, so that the ignition switch 23 can continuously contact the air outlet pressure plate 224, and the air outlet valve 221 maintains a continuous air supply state, thereby eliminating the inconvenience of the user continuously pressing the ignition switch 23.

In particular, in order to increase the safety of the gas burner when in use, it further includes an ignition safety key 26, a push button 261 above the ignition safety key 26 extends radially from a front slide 153 in front of the opening 151, and a second restoring spring 263 is provided between the front end of a base 262 below the ignition safety key 26 and a front stopper 154 inside the front slide 153, wherein a second spring tenon 264 that is sleeved with the second restoring spring 263 extends from the front end of the base 262, and the second spring tenon 264 can pass through the front stopper 154, so that the base 262 can smoothly compress the second restoring spring 263, so that the second restoring spring 263 can store energy. A rear baffle 265 of the base 262 abuts against a flange 234 axially extending from the ignition switch 23, so that the ignition safety key 26 interferes with the ignition switch 23 and cannot be pressed (as shown in FIG. 4 ), thereby increasing the difficulty of unlocking the ignition safety key 26 and preventing children from being harmed by directly pressing the ignition switch 23.

The flame ejection mechanism 27 includes a fixed tube 271 made of metal, and one end of the fixed tube 271 is provided with a gas inlet hole 272 for inserting the gas nozzle 223. At least one gas inlet hole 273 is radially opened in front of the gas inlet hole 272, and the at least one gas inlet hole 273 is connected to a mixing inner tube 274 inside the fixed tube 271, and the outside of the mixing inner tube 274 is provided with a connecting portion 275, such as a connecting hole, which can be connected to the flame ejection tube 28. Therefore, during assembly, at least one joint member 282, such as a screw, is passed through a corresponding tube hole 281 opened in the flame ejection tube 28 and connected to the connecting portion 275, so that the flame ejection tube 28 and the fixed tube 271 can be combined into one. Therefore, after the gas is sprayed out by the air nozzle 223, it will drive the air to enter from the at least one air inlet hole 273, and enter the mixing inner tube 274 together for mixing to form a mixed gas, and the mixed gas is sprayed out through a flame nozzle 276 connected to a downstream end of the mixing inner tube 274, wherein the flame nozzle 276 is arranged in the flame tube 28, so that the burning flame can be sprayed out from an opening of the flame tube 28.

Furthermore, the burner 276 is disposed in a heat insulating member 277 made of ceramic material, and the heat insulating member 277 is covered by the burner tube 28. The wire 242 passes through the heat insulating member 277, and a free end of the wire 242 is spaced apart from the burner 276 so that the generated high-voltage static electricity can ignite the mixed gas sprayed by the burner 276. A free end of the return wire 243, such as an end hook 244, is connected, such as hooked, to an end hole 278 opened in the fixing tube 271, so that the piezoelectric device 24, the wire 242, the fixing tube 271 and the return wire 243 form an electrical circuit.

As shown in Figures 1, 3 to 4, 6 and 9a to 12, the combustion-supporting device 3 includes the aforementioned battery module 31, the electric motor 32, such as a motor and an impeller 33, and further includes a hood 34, one side of which radially extends a casing 341 for receiving the electric motor 32, and the other side is provided with a wheel chamber 342 for accommodating the impeller 33, wherein an output shaft 321 of the electric motor 32 extends into the wheel chamber 342 and is connected to the impeller 33, and the wheel chamber 342 axially extends a neck tube 343 and a connecting ring 344 connected to a free end of the neck tube 343, and the connecting ring 344 is provided for connection, such as buckling the air supply pipe 38.

Furthermore, the rear of the wind shield 34 is further connected to a partition 345, which includes a conductive fixing post 346 and a support 349 which is spaced apart from the conductive fixing post 346 and is provided for a conductive elastic member 347 to be sleeved and positioned, and the conductive elastic member 347, such as a torsion spring, extends an elastic arm 348 toward the conductive fixing post 346. A series circuit is formed between the battery module 31, the motor 32, the conductive fixing post 346 and the conductive elastic member 347 having the elastic arm 348, and the conductive elastic member 347 and the conductive fixing post 346 form a circuit switch. That is, when the elastic connecting arm 348 of the conductive elastic member 347 touches the conductive fixing post 346, the power is connected; conversely, when the elastic connecting arm 348 of the conductive elastic member 347 separates from the conductive fixing post 346, the power is disconnected.

The conductive elastic member 347 is controlled by the fan switch 35, and the fan switch 35 is disposed in a rear slide slot 155 behind the opening 151. As shown in FIG9a and FIG9b, a front tenon 351 and a pressure-detent member 352 overlapping the elastic connecting arm 348 are disposed adjacent to the front of the fan switch 35. The pressure-detent member 352 is preferably implemented as an inverted V-shaped groove to provide the elastic connecting arm 348 with non-deflected counterclockwise movement, thereby ensuring that the power supply is connected to the conductive fixing column 346.

Furthermore, the fan switch 35 has a pair of first guide rails 353 on both sides, and the pair of first guide rails 353 are connected to a pair of first guide grooves 156 located below and opposite to the rear slide groove 155 as shown in FIG. 10, so that the fan switch 35 can move axially in the rear slide groove 155. When the ignition switch 23 is in a pressed operation, if the fan switch 35 is pushed forward in the rear slide groove 155, the front tenon 351 will touch a rear stopper 235 protruding from the rear of the ignition switch 23, thereby forming an interference effect (shown in FIG. 6). That is, when the ignition switch 23 is in the pressing operation, the fan switch 35 cannot be operated. Since the ignition switch 23 and the fan switch 35 cannot be operated at the same time, it can be ensured that the two will not operate at the same time.

In addition, the fan switch 35 has a hollow slot 354 in the central area, and a fan safety key 36 is further integrated in the hollow slot 354. The fan safety key 36 includes a U-shaped or L-shaped elastic bracket 361 connected to the fan switch 35, a button 362 protrudes in front of the elastic bracket 361, and a lock bolt 363 protrudes radially from the button 362, and a lock slot 157 for accommodating the lock bolt 363 is radially opened in the rear slide slot 155 corresponding to the position of the lock bolt 363, so that the lock bolt 363 is interfered by the lock slot 157 (shown in Figures 4 and 6), so that the fan switch 35 cannot be pushed forward, and a locked state is formed.

When the ignition switch 23 is not pressed and the fan switch 35 is to be used, the user only needs to press the cam 362 to disengage the lock bolt 363 from the lock slot 157 (shown in FIG. 11 ), and then the fan switch 35 can be pushed forward in the rear slide slot 155, so that the front tenon 351 and the rear stopper 235 form a misaligned state (shown in FIG. 12 ), so that the detent member 352 pushes the elastic connecting arm 348 of the conductive elastic member 347 in a counterclockwise direction, and causes the elastic connecting arm 348 to contact the conductive fixing column 346, so as to form a power-on state.

Furthermore, the fan switch 35 further includes a push piece 37 plugged into the top thereof, and the push piece 37 is provided with a tenon 371 and a slot 355 that can form a plug-in connection opposite to the adjacent surface of the fan switch 35, and a through hole 372 for the button 362 to pass through is opened corresponding to the position of the button 362, so that the push piece 37 can drive the fan switch 35 to move axially synchronously.

In addition, the push piece 37 has a pair of second guide rails 373 on both sides, and the pair of second guide rails 373 are connected to a pair of second guide grooves 158 located in the rear slide groove 155 and arranged opposite to each other as shown in FIG. 10 , so that the push piece 37 and the fan switch 35 can move axially together in the rear slide groove 155.

Furthermore, a pair of sliding tenons 374 are parallelly disposed on both sides of the bottom surface of the push piece 37 and straddle a bottom wall of the rear sliding groove 155 to reduce friction during pushing.

Please refer to Figures 1 to 2 and Figures 4 to 8 again. When using the ignition device 2 to ignite a combustible object, such as charcoal, the user only needs to hold the handle 13 with one hand, such as the right hand; and then use another hand, such as a finger of the left hand, to push the push button 261 axially forward in the front slide groove 153 and compress the second return spring 263 to disengage the flange 234 from the abutment of the rear baffle 265 to form an unlocked state. At this time, the user can press the ignition switch 23 with the thumb of the right hand to trigger the aforementioned gas supply mechanism 22 and the piezoelectric device 24 to generate corresponding gas supply and transmit high-voltage static electricity to the ignition mechanism 27, so that the mixed gas sprayed by the ignition nozzle 276 is ignited by the high-voltage static electricity, and the generated flame is sprayed from the opening of the ignition tube 28 (shown in Figure 8) to ignite the combustibles.

Then, the user presses the continue button 25 with a finger of the left hand to interfere with the ignition switch 23, so that the ignition switch 23 does not return to the starting position, and the gas supply mechanism 22 maintains a continuous gas supply state.

At this time, if the fan switch 35 is pushed forward in the rear slide slot 155, the fan switch 35 cannot be pushed smoothly due to the blocking and interference formed by the front tenon 351 and the rear stopper 235 of the ignition switch 23 (shown in FIG. 6 ).

After the combustibles are ignited, the user only needs to press the continue button 25 again to separate the buckle slot 252 from the buckle 233, and the first restoring spring 255 releases energy and stretches to cause the continue button 25 to return to the unpressed starting position. The ignition switch 23 loses the interference of the continue button 25 and returns to the unpressed operating mode through the rebound effect of the head 241 of the piezoelectric 24. The air outlet pressure plate 224 loses the force of the ignition switch 23 and retracts to the initial position without gas supply due to the elastic restoring force of the air outlet valve 221, and drives the air outlet pressure plate 224 back to the position shown in FIG. 4, so that the air outlet valve 221 cuts off the gas supply.

When the ignition switch 23 returns to the non-operated position, the rear baffle 265 of the ignition safety key 26 loses the abutment of the flange 234 of the ignition switch 23, so that the second return spring 263 releases energy and stretches, so as to cause the ignition safety key 26 to return to the non-operated starting position and the rear baffle 265 abuts against the flange 234 to form an automatic locking state (shown in FIG. 4 ).

Please also refer to FIG. 1, FIG. 3, FIG. 4, and FIG. 9a to FIG. 13. When the combustion-supporting device 3 is used to supply oxygen to the combustibles to improve the combustion-supporting effect, the user first confirms that the ignition switch 23 is in the unpressed operation position (shown in FIG. 4). Then, the user presses the convex button 362 with the right hand to disengage the lower lock bolt 363 from the lock groove 157 to complete the unlocking of the fan switch 35 (shown in FIG. 11).

Then the push piece 37 is pushed, so that it synchronously drives the fan switch 35 to move forward, so that the pressure member 352 pushes the elastic connecting arm 348 of the conductive elastic member 347 in a counterclockwise direction, and causes the elastic connecting arm 348 to contact the conductive fixing column 346, so as to form a power-on state (shown in FIG. 12). At this time, the power is supplied to the motor 32 by the battery module 31, and the output shaft 321 and the impeller 33 are synchronously operated, so that the air flow generated by the impeller 33 in the wheel chamber 342 of the wind cover 34 passes through the neck pipe 343 and is blown out from the opening of the air supply pipe 38 (shown in FIG. 13), so as to produce a combustion-supporting effect on the combustibles.

Therefore, through the implementation of this case, the effect achieved is that the flame generated by the ignition device is sprayed out by the ignition pipe, and the air flow generated by the combustion-supporting device is blown out by an air supply pipe, and the ignition pipe and the air supply pipe are a double-tube design, so that the flame and the air flow form a diversion effect, and have both ignition and combustion-supporting functions.

Furthermore, the ignition device includes an ignition switch that can ignite the gas and generate a flame, and the combustion-supporting device includes a fan switch that can start the motor and drive the impeller to operate to generate an air flow; when the ignition switch is actuated, the fan switch cannot be actuated; conversely, when the fan switch is actuated, the ignition switch cannot be actuated to ensure that the two will not operate at the same time.

Furthermore, the ignition switch and the fan switch are each provided with a safety key to avoid accidental activation, thereby increasing the safety of use and expanding the scope of use of the gas burner, which is a great structure never seen before in similar items.

The invention disclosed in this case is one of the preferred embodiments. Any partial changes or modifications that are derived from the technical concept of this case and are easily inferred by people familiar with the art do not deviate from the scope of the patent rights of this case.

1: Body

11: Left shell

111: Ventilation slot

112: Button hole

113: Inner retaining wall

114: Inner baffle hole

12: Right shell

121: Axis

122: Adjustment slot

13: Grip

14: Base

141: Storage space

15: Control Department

151: Opening

152: Bottom retaining wall

153:Front chute

154: Front wall

155: Rear chute

156: First guide groove

157: Lock slot

158: Second guide groove

16: First pipe opening

17: Second pipe opening

2: Ignition device

21: Gas tank

211: Fill your mouth

22: Gas supply mechanism

221: Exhaust valve

222: Gas hose

223: Air nozzle

224: Exhaust pressure plate

225: Regulating ring

226:Pitch

23: Ignition switch

231: Pressing part

232: Room

233:Hook

234: flange

235: Rear stopper

24: Piezoelectric

241:Head

242: Conductor

243:Return line

244: end hook

25:Continue button

251: Mortise

252: Buckle slot

253: Arm

254: Hook

255: First recovery spring

256: First spring tenon

26: Ignition safety button

261: Push button

262: Base

263: Second recovery spring

264: Second spring tenon

265: Rear baffle

27: Flame-spraying mechanism

271: Fixed pipe

272: Gas inlet hole

273: Air intake

274: Mixed inner tube

275:Connection part

276: Flame nozzle

277: Thermal insulation parts

278: End hole

28: Flame tube

281: Tube hole

282:Joints

3: Combustion-supporting device

31:Battery module

311:Battery box

312: Box cover

32: Electric motor

321: Output shaft

33: Impeller

34: Wind shield

341: Chassis

342: Wheel room

343: Neck tube

344:Connector

345: Partition

346: Conductive fixing column

347: Conductive elastic parts

348: Elastic arm

349: Pillar

35: Fan switch

351: front tenon

352: Pressing element

353: First track

354: hollowed out slot

355: slot

36: Fan safety button

361: Elastic bracket

362: Button

363: Lock bolt

37: Push film

371: Mortise and tenon

372:Piercing

373: Second rail

374: Sliding tenon

28: Air supply pipe

To further reveal the specific technical content of this case, please refer to the drawings first, among which: Figure 1 is a three-dimensional diagram of the gas burner of this case; Figure 2 is a three-dimensional exploded diagram of the ignition device of the gas burner of this case; Figure 3 is a three-dimensional exploded diagram of the combustion-supporting device of the gas burner of this case; Figure 4 is a cross-sectional view taken along line A-A of Figure 1 to show the non-operated state of the ignition switch, ignition safety button, fan switch and fan safety button; Figure 5 is a cross-sectional view of the ignition device of this case with the ignition button when the continuous button is not pressed; Figure 6 is a cross-sectional view of the ignition device of this case when it is unlocked, pressed for ignition and supplied with gas; Figure 7 is a cross-sectional view of the ignition key being locked when the button of the ignition device is continuously pressed; Figure 8 is a schematic diagram of the ignition device of the present invention being operated according to Figures 6 and 7, with the gas being ignited and the flame being ejected at the downstream outlet of the ignition device; Figures 9a and 9b are three-dimensional exploded views of the fan switch and fan safety key of the combustion-supporting device from two different viewing angles; Figure 10 is a cross-sectional view taken along line B-B of Figure 1 to show the type of the assembled control part of the fan switch and fan safety key; Figure 11 is a cross-sectional view of the fan switch and fan safety key of the present invention being unlocked; Figure 12 is a cross-sectional view of the fan switch and fan safety key of the present invention being connected to the power supply; and Figure 13 is a schematic diagram showing the air flow being blown out at the downstream outlet of the combustion-supporting device after the combustion-supporting device of this case is operated as shown in Figures 11 and 12.

1: Body

11: Left shell

111: Ventilation slot

112: Button hole

12: Right shell

13: Grip

14: Base

15: Control Department

151: Opening

153:Front chute

155: Rear chute

16: First pipe opening

17: Second pipe opening

23: Ignition switch

25:Continue button

26: Ignition safety button

28: Flame tube

36: Fan safety button

37: Push film

38: Air supply pipe

Claims (20)

A gas burner with ignition and combustion-supporting functions, comprising a main body, an ignition device and a combustion-supporting device installed in the main body; wherein a control portion is provided at the top of the main body, and the control portion is provided with an ignition switch of the ignition device and a fan switch of the combustion-supporting device; when the ignition switch is pressed, a gas supply mechanism and a piezoelectric actuator can be controlled to operate simultaneously, so that the gas is supplied to a ignition mechanism, and after the gas is mixed with air in the ignition mechanism, it is discharged from a first pipe opening at the front end of the main body. The nozzle in the extended flame tube sprays out, and the piezoelectric transmits high-voltage static electricity to the flame nozzle, igniting a mixed gas into a flame sprayed from the flame tube; and the fan switch can control a battery module after pushing, and the power between a motor and an impeller is connected, and the impeller is driven to make the generated air flow blown out through a second pipe opening extending from the front end of the main body, wherein the flame tube and the air supply pipe are a double-tube design, so that the flame and the air flow form a diversion effect. As described in item 1 of the patent application, the gas burner with ignition and combustion-supporting functions, wherein the ignition switch partially extends from an opening of the control part, and the fan switch is arranged in a rear slide groove behind the opening; wherein a front convex tenon is protruded in front of the fan switch, and a rear stopper protrudes behind the ignition switch; when the ignition switch is in a pressed state, the rear stopper will interfere with the front convex tenon to prevent the fan switch from being pushed; and when the ignition switch is not in a pressed state, the rear stopper and the front convex tenon are in a misaligned state, so that the fan switch can be pushed. As described in item 1 of the patent application, the gas burner with ignition and combustion-supporting functions, wherein the rear section of the main body forms a handle for one-handed holding, and the ignition device includes a gas cylinder disposed in the handle, and the gas supply mechanism is disposed in front of the gas cylinder, and the gas supply mechanism includes an air outlet valve installed in front of the gas cylinder, an air supply hose with an upstream end sleeved on the air outlet valve, a gas nozzle disposed at a downstream end of the air supply hose, and an air outlet pressure plate with one end sleeved on the air outlet valve, and the air outlet pressure plate is pivoted on a pivot at the lower part of the inner part of the control part. As described in item 3 of the patent application scope, the gas burner with ignition and combustion-supporting functions, wherein the outlet valve is further sleeved with an adjusting ring, a lever extends laterally from the adjusting ring, and the lever passes through a long adjusting slot preset in the main body; when the lever is turned, the adjusting ring will cause the outlet valve to rotate synchronously to adjust the supply of the gas. As described in item 2 of the patent application, a gas burner with ignition and combustion-supporting functions, wherein a pressing portion above the ignition switch extends from the opening, and the piezoelectric is sleeved between a chamber on one side of the ignition switch and a bottom retaining wall inside the control portion, and the piezoelectric is provided with a wire extending to the flame nozzle, and a return wire connected to the flame spray mechanism. The gas burner with ignition and combustion-supporting functions as described in item 3 of the patent application further comprises a continuous button, the continuous button is set in a button hole of the main body, and a stopper with a buckle groove and at least two arms are extended inward from the periphery of the continuous button, the stopper and the at least two arms pass through an inner blocking wall inside the button hole, and the stopper effect formed by a hook portion of each of the at least two arms and a corresponding inner blocking hole is used to prevent the continuous button from being pulled out. The button is disengaged; and the ignition switch forms a buckle corresponding to the buckle slot position to allow the buckle slot to be buckled or separated; when the ignition switch remains pressed, it continuously presses the air outlet pressure plate, allowing the air outlet valve to continue to supply gas; or when the ignition switch returns to the unpressed state, the air outlet valve retracts to the starting position without gas supply by the elastic recovery force, and drives the air outlet pressure plate back to its original position to cut off the gas supply. As described in item 6 of the patent application scope, a gas burner with ignition and combustion-supporting functions, wherein a first spring tenon connected to a first return spring is provided between the continuing button and the inner enclosure wall, and the first spring tenon can pass through the inner enclosure wall. As described in item 1 of the patent application scope, a gas burner with ignition and combustion-supporting functions, wherein a base is provided at the bottom of the front section of the main body, and a storage space for installing the battery module is formed inside the base; wherein the battery module includes a battery box capable of installing a plurality of batteries, and a box cover for opening or closing a bottom opening of the battery box; or the battery module includes a rechargeable battery. As described in item 2 of the patent application, the gas burner with ignition and combustion-supporting functions further includes an ignition safety key, a push button above the ignition safety key extends from a front slide groove in front of the opening, and a second restoring spring is provided between the front end of a base below and a front baffle wall inside the front slide groove, wherein a second spring tenon that is sleeved with the second restoring spring extends from the front end of the base, and the second spring tenon can pass through the front baffle wall; and a rear baffle of the base abuts against a flange extending from the ignition switch, so that the ignition safety key interferes with the ignition switch and cannot be pressed. As described in item 3 of the patent application, the gas burner with ignition and combustion-supporting functions, wherein the ignition mechanism includes a fixed tube made of metal, one end of the fixed tube is provided with a gas inlet hole for the gas nozzle to be inserted, and at least one air intake hole is opened in front of the gas inlet hole, and the at least one air intake hole is connected to a mixing inner tube inside the fixed tube, so that the gas ejected from the gas nozzle will drive the air to enter from the at least one air intake hole, and enter the mixing inner tube together to be mixed into the mixed gas, and the mixed gas is ejected through the ignition nozzle connected to a downstream end of the mixing inner tube. As described in item 10 of the patent application, the gas burner with ignition and combustion-supporting functions, wherein the outer portion of the mixing inner tube is provided with a connecting portion capable of receiving the flamethrower tube. During assembly, at least one joint piece is passed through a corresponding tube hole of the flamethrower tube and connected to the connecting portion, so that the flamethrower tube and the fixed tube can be combined into one body. As described in item 5 of the patent application, the gas burner with ignition and combustion-supporting functions, wherein the burner nozzle is arranged in a heat-insulating member made of ceramic material, and the heat-insulating member is covered by the burner tube; the wire passes through the heat-insulating member, and a free end of the wire is spaced apart from the burner nozzle, so that the transmitted high-voltage static electricity ignites the mixed gas sprayed from the burner nozzle; and a free end of the return wire is connected to an end hole opened in the fixed tube, so that the piezoelectric, the wire, the fixed tube and the return wire form an electrical circuit. As described in item 1 of the patent application, the gas burner with ignition and combustion-supporting functions, wherein the combustion-supporting device includes the battery module, the motor and the impeller, and further includes a hood, one side of which radially extends to form a casing of the motor, and the other side is provided with a wheel chamber for accommodating the impeller, wherein an output shaft of the motor extends into the wheel chamber and is connected to the impeller, and the wheel chamber extends a neck tube and a connecting ring connected to a free end of the neck tube, and the connecting ring is provided for connecting the air supply pipe. As described in item 13 of the patent application, the gas burner with ignition and combustion-supporting functions, wherein the rear of the wind hood is further connected to a partition, the partition includes a conductive fixing column, and a support column spaced apart from the conductive fixing column and provided with a conductive elastic member for sleeve connection and positioning, wherein the conductive elastic member extends an elastic connecting arm toward the conductive fixing column, so that the conductive elastic member and the conductive fixing column become a circuit switch. As described in item 14 of the patent application scope, the gas burner with ignition and combustion-supporting functions, wherein the conductive elastic member is controlled by the fan switch, wherein a pressure-detent member is provided adjacent to one side of a front tenon of the fan switch and overlaps with the elastic connecting arm. As described in item 2 of the patent application scope, the gas burner with ignition and combustion-supporting functions has a pair of first guide rails on both sides of the fan switch, and the pair of first guide rails are connected to a pair of first guide grooves arranged opposite to each other below the rear slide groove, so that the fan switch can move in the rear slide groove. As described in item 2 of the patent application, the gas burner with ignition and combustion-supporting functions, wherein the fan switch has a hollow slot in the central area, and a fan safety key is further connected in the hollow slot. The fan safety key includes an elastic bracket connected to the fan switch, a knob protrudes from the front of the elastic bracket, and a lock bolt protrudes radially from the knob, and a lock slot for accommodating the lock bolt is radially opened in the rear slide corresponding to the position of the lock bolt, so that the lock bolt is interfered by the lock slot, and the fan switch cannot be pushed forward, forming an upper locking state. As described in item 17 of the patent application, the gas burner with ignition and combustion-supporting functions, wherein the fan switch further includes a push piece plugged into the top surface thereof, the push piece and the adjacent surface of the fan switch are provided with a tenon and a slot for forming a plug-in connection, and a through hole for the convex button to pass through is opened corresponding to the position of the convex button, so that the push piece can drive the fan switch to move synchronously. As described in item 18 of the patent application, the gas burner with ignition and combustion-supporting functions has a pair of second guide rails on both sides of the push piece, and the pair of second guide rails are connected to the rear slide groove and are arranged in a pair of second guide grooves opposite to each other, so that the push piece and the fan switch can move together in the rear slide groove. As described in item 19 of the patent application, a gas burner with ignition and combustion-supporting functions, wherein a pair of sliding tenons are arranged in parallel on both sides of the bottom surface of the push plate and straddle one bottom wall of the rear slide groove.

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