Portable handheld ignition gun

Abstract

The utility model discloses a portable handheld ignition gun. The portable handheld ignition gun comprises a flame nozzle, an ignition gun barrel and a handle, the flame nozzle is located at the front end of the ignition gun barrel, and an ignition electrode and a swirl vane are arranged in a cavity of the flame nozzle. A mixing chamber, a fuel gas nozzle, an air channel and a fuel gas guide pipe are sequentially arranged in a cavity of the ignition gun pipe. A cavity of the handle is divided into an upper fan bin, a middle igniter bin and a lower battery bin from top to bottom. A fan assembly is mounted in the upper fan bin; a gas guide column is fixed at the joint with the ignition gun barrel, and the lower end of the gas guide column is connected with a gas cylinder quick connector; an igniter is installed in the middle igniter bin and electrically connected with the ignition electrode. A battery assembly and a control module are installed in the lower battery bin. The portable handheld ignition gun integrates the functions of air supply, air supply, ignition and the like, is light in overall mass, and is suitable for some scenes without a fixed air source and needing open fire ignition.

Description

Technical Field

[0001] The utility model relates to the technical field of igniters, in particular to a portable handheld igniting gun. Background Art

[0002] At present, in the production processes of some industries, due to factors such as high installation environment temperature and narrow installation positions, automatic ignition devices cannot be popularized yet, and workers still need to use handheld ignition sources to ignite the main flame of the equipment. Workers generally wrap waste paper around the head of a steel rod, dip an oil wick in flammable substances such as diesel oil, and after ignition, stretch it to the equipment for ignition. This method has a high labor intensity and uses flammable substances such as diesel oil, posing safety risks.

[0003] Generally, the popular handheld igniters (blowtorches) on the market adopt a natural air suction structure, which is only suitable for household use or outdoors and is not suitable for industrial use. Content of the Utility Model

[0004] The main technical problem to be solved by the utility model is to provide a portable handheld igniting gun that can be applicable to some scenarios without a fixed gas source and requiring open flame ignition.

[0005] To solve the above technical problem, a technical solution adopted by the utility model is: providing a portable handheld igniting gun, including: a flame nozzle, an ignition barrel, and a handle;

[0006] The flame nozzle is located at the front end of the ignition barrel, and an ignition electrode and a swirl vane are arranged in the cavity of the flame nozzle;

[0007] In the cavity of the ignition barrel, a mixing chamber, a gas spray head, an air passage, and a gas conduit are sequentially arranged. The gas spray head is connected to the outlet of the gas conduit. The outlets of the gas conduit and the air passage are communicated with the mixing chamber. The swirl vane is located at the outlet of the mixing chamber;

[0008] The cavity of the handle is divided into an upper fan chamber, a middle igniter chamber, and a lower battery chamber from top to bottom;

[0009] One end of the upper fan chamber is provided with an air suction port, and the other end is provided with a connecting pipe section. The connecting pipe section is connected to the rear end of the ignition barrel. A fan assembly is installed in the upper fan chamber; an installation hole is provided at the connection between the connecting pipe section and the ignition barrel. A gas guiding column is fixedly installed in the installation hole. The lower end of the gas guiding column is connected with a quick gas cylinder connector. A gas connection channel communicating the gas cylinder and the gas conduit is arranged in the gas guiding column;

[0010] An igniter is installed in the middle igniter chamber, and the igniter is electrically connected to the ignition electrode;

[0011] A battery assembly and a control module are installed in the lower battery compartment, and the control module is electrically connected to the fan assembly, the igniter, and the battery assembly respectively.

[0012] In a preferred embodiment of the present invention, gas flow holes are provided in the middle and on the side of the air guide column. The middle flow hole and the side flow hole are arranged perpendicular to each other and communicate to form the gas connection channel. The lower end of the middle flow hole is connected to the air outlet of the gas cylinder quick connector, and the side flow hole is connected to one end of the gas conduit.

[0013] In a preferred embodiment of the present invention, the battery assembly includes an equalization protection board and a 12V power battery pack. The equalization protection board is placed at the bottom of the lower battery compartment, the 12V power battery pack is placed on the equalization protection board, the control module is placed on the side of the 12V power battery pack, and the equalization protection board is electrically connected to the control module and the 12V power battery pack respectively.

[0014] In a preferred embodiment of the present invention, a charging module, a PWM switch, and a MOS switch are provided on the outer surface of the housing of the igniting gun. The charging module is located at the bottom of the outer surface of the housing of the igniting gun, near the equalization protection board, and is electrically connected to the equalization protection board; the PWM switch is located on the outside of the handle and between the fan assembly and the control module for controlling the on / off of the fan assembly; the MOS switch is located on the inside of the handle and between the igniter and the control module for controlling the on / off of the igniter.

[0015] In a preferred embodiment of the present invention, the charging module is a type-c charging port.

[0016] In a preferred embodiment of the present invention, the upper fan compartment includes a fan installation pipe. The rear end of the fan installation pipe is connected to the handle housing to form the upper fan compartment, and the front end of the fan installation pipe is connected to the rear end of the igniting gun barrel.

[0017] In a preferred embodiment of the present invention, the front end of the fan installation pipe is of a reduced diameter structure.

[0018] In a preferred embodiment of the present invention, the fan assembly includes a turbo fan blade, a brushless motor, and a brushless electronic speed controller. The brushless electronic speed controller, the brushless motor, and the turbo fan blade are sequentially installed in the upper fan compartment in the direction from the air suction port to the connection section.

[0019] In a preferred embodiment of the present invention, the gas nozzle is of a circular ring structure, and a plurality of gas spray holes are opened on the inner side of the circular ring. The gas spray holes are centripetal spray holes.

[0020] In a preferred embodiment of the present utility model, high-temperature resistant wires are used to connect between each electronic component module, and the connection method is a quick plug connector.

[0021] The beneficial effects of the present utility model are as follows: The portable hand-held igniter of the present utility model has the following advantages:

[0022] 1. The portable hand-held new igniter integrates functions of charging, air supply, gas supply, and ignition. The overall quality of the device is relatively light, and it is suitable for some scenarios without a fixed gas source but requiring open-flame ignition.

[0023] 2. The portable hand-held new igniter is compatible with butane gas cylinders of various specifications on the market, and has a relatively high replaceability.

[0024] 3. The portable hand-held new igniter can use a pre-installed rechargeable battery or a detachable battery pack (similar to the lithium battery of power tools).

[0025] 4. The portable hand-held new igniter can be charged by connecting to a 220v power socket through a mobile phone charger and a charging cable, or can be quickly charged through a mobile power supply (power bank) that supports the QC fast charging protocol.

[0026] 5. The turbo fan used in the portable hand-held new igniter has a speed regulation function. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a preferred embodiment of the portable hand-held igniter of the present utility model;

[0028] Figure 2 is Figure 1 a partially enlarged schematic structural diagram of

[0029] Figure 3 is a schematic structural diagram of the gas nozzle of the shown portable hand-held igniter;

[0030] Figure 4 is the circuit schematic diagram of the shown portable hand-held igniter;

[0031] The markings of each component in the attached drawings are as follows: 1 - handle, 11 - handle housing, 12 - upper fan compartment, 121 - air intake, 122 - fan installation pipe, 13 - middle igniter compartment, 14 - lower battery compartment, 2 - ignition barrel, 21 - mixing chamber, 22 - gas nozzle, 221 - gas injection holes, 23 - air passage, 24 - gas conduit, 3 - flame nozzle, 31 - ignition electrode, 32 - swirl vane, 4 - gas guiding column, 41 - gas connection passage, 5 - quick gas cylinder connector, 51 - adjusting knob, 6 - butane gas cylinder, 7 - fan assembly, 71 - turbine fan blade, 72 - brushless motor, 73 - brushless electronic speed controller, 81 - charging module, 82 - PWM switch, 83 - MOS switch, 84 - battery pack, 85 - control module, 86 - balancing protection board, 9 - igniter. Detailed implementation mode

[0032] The following elaborates on the preferred embodiments of the present utility model in conjunction with the attached drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0033] Please refer to Figures 1 to 4 , the embodiments of the present utility model include:

[0034] A portable handheld ignition gun, comprising: a handle 1, an ignition barrel 2 and a flame nozzle 3 connected in sequence.

[0035] The flame nozzle 3 is located at the front end of the ignition barrel 2, and an ignition electrode 31 and a swirl vane 32 are arranged in the cavity of the flame nozzle 2. The swirl vane 32 is installed at the head of the ignition barrel 2; the ignition electrode 31 is installed and fixed in the middle of the swirl vane 32 and is connected to the igniter 9 at the rear through a wire.

[0036] In the cavity of the ignition barrel 2, a mixing chamber 21, a gas nozzle 22, an air passage 23 and a gas conduit 24 inserted in the air passage 23 are sequentially arranged from the direction of the flame nozzle 3 to the handle 1; the gas nozzle 22 is installed at the outlet of the gas conduit 24, and the space between the swirl vane 32 and the gas nozzle 22 forms a mixing chamber 21 for gas and air. The outlet of the air passage 23 communicates with the mixing chamber 21, and the outlet of the gas conduit 24 also communicates with the mixing chamber 21. Air and gas are mixed in the mixing chamber 21.

[0037] The handle 1 includes a handle housing 11, and the cavity of the handle 1 is divided into an upper fan compartment 12, a middle igniter compartment 13 and a lower battery compartment 14 from top to bottom.

[0038] The upper fan housing 12 is mainly used to place the fan assembly 7. One end is provided with an air suction port 121, and the other end is provided with a connecting pipe section which is connected to the rear end of the ignition gun barrel 2. The fan assembly 7 is installed in the upper fan housing 12. An installation hole is provided at the connection between the connecting pipe section and the ignition gun barrel 2, and a gas guiding column 4 is fixedly installed in the installation hole. Figure 1 In the illustrated embodiment, the upper fan housing includes a fan installation pipe 122. The rear end of the fan installation pipe 122 is connected to the upper part of the handle housing 11 to form the upper fan housing 12. The front end of the fan installation pipe 122 is connected to the rear end of the ignition gun barrel 2. Preferably, the front end of the fan installation pipe 122 is of a reduced diameter structure, which is beneficial to improving the air flow velocity. The reduced diameter section of the fan installation pipe 122 (i.e., the connection with the rear end of the ignition gun barrel) is provided with a gas guiding column installation hole. The gas guiding column 4 is inserted into this installation hole and fixed to the fan installation pipe 122. The lower end of the gas guiding column 4 is connected with a gas cylinder quick connector 5. A gas connection channel 41 communicating the butane gas cylinder 6 and the gas conduit 24 is provided inside the gas guiding column 4. In the illustrated embodiment, butane circulation holes are provided in the middle and on the side of the gas guiding column 4. The middle circulation hole and the side circulation hole are arranged perpendicular to each other and communicate to form the gas connection channel 41. The lower end of the middle circulation hole is connected to the air outlet hole of the gas cylinder quick connector 5, and the side circulation hole is connected to one end of the gas conduit 24. The gas cylinder quick connector 5 is a universal connector; the gas cylinder quick connector 5 is a mature product on the market and is suitable for various models of butane gas cylinders. There is an adjustment knob 51 on the side of the gas cylinder quick connector 5, which can adjust the opening size of the air outlet.

[0039] One end of the gas conduit 24 is inserted into the side circulation hole of the gas guiding column 5, and the other end is bent into a gas spray head 22; Figure 3 The illustrated gas spray head 22 is of a circular ring structure, and a plurality of gas spray holes 221 are provided on the inner side of the circular ring. The gas spray holes 221 are centripetal spray holes. The length of the gas conduit 24 is adjusted according to the size of the ignition gun barrel 2.

[0040] Preferably, the fan assembly 7 is a turbo fan assembly, which is composed of turbo fan blades 71, a brushless motor 72 and a brushless electronic speed controller 73 to form an integral turbo fan assembly and is installed in the fan installation pipe 122. The brushless electronic speed controller 73, the brushless motor 72 and the turbo fan blades 71 are sequentially installed in the upper fan housing 12 in the direction from the air suction port 121 to the connection section.

[0041] The rear end of the ignition gun barrel 2 is fixedly installed in the fan installation pipe 122, and the length and diameter of the gun barrel can be customized according to the actual use scenario.

[0042] An igniter is installed in the middle igniter chamber 13, and the igniter 9 is electrically connected to the ignition electrode. The igniter 9 can release high-voltage current, which is transmitted to the ignition electrode 31 through a wire.

[0043] A battery assembly and a control module are installed in the lower battery chamber 13. The control module is electrically connected to the motor assembly, the igniter 9, and the battery assembly respectively. Figure 1 In the lower battery chamber shown in the embodiment, there are: a balance protection board 86, a 12V power battery pack 84, and a control module 85. On the outer surface of the ignition gun housing, there are: a charging module 81, a PWM switch 82, and a MOS switch 83. The balance protection board 86 is placed at the bottom of the lower battery chamber 13, the 12V power battery pack 84 is placed on the balance protection board 86, and the control module 85 is placed on the side of the 12V power battery pack 84. The balance protection board 86 is electrically connected to the control module 85 and the 12V power battery pack 84 respectively. The charging module 81 (charging socket) is located at the bottom of the outer surface of the ignition gun housing, near the balance protection board 86, and is electrically connected to the balance protection board 86. The PWM switch 82 is located outside the handle 1 and between the fan assembly 7 and the control module 85, and is used to control the start and stop of the fan assembly 7. The MOS switch 83 is located inside the handle 1 and between the igniter 9 and the control module 85, and is used to control the start and stop of the igniter 9.

[0044] Preferably, high-temperature resistant wires are used to connect between the electronic component modules, and the connection method is a quick plug connector, which is convenient for maintenance and replacement.

[0045] Combined with Figure 4 As shown, the circuit control part of the portable ignition gun of the present utility model includes a charging module 81, a balance protection board 86, a 12V power battery pack 84, a control module 85, a PWM switch 82, a MOS switch 83, an igniter 9, a brushless electronic speed controller 73, and a brushless motor 72.

[0046] Preferably, the charging module 81 is a type-c charging port, and the device can be charged with the charging cable of a daily mobile phone charger. The PWM switch 82 is used to turn on the turbo fan and adjust the speed of the turbo fan; the MOS switch 83 is used to make the igniter 9 release high voltage, which is transmitted to the ignition electrode 31 through a wire to release an electric spark. The equalization protection board 86 has monitoring and protection functions, and also includes a battery equalization function. Battery equalization means that in a battery pack, each single battery is balanced in charging and discharging to ensure that the voltage of each single battery remains at a relatively consistent level. This helps prevent some single batteries in the battery pack from being overcharged or discharged due to voltage differences, thereby extending the life of the entire battery pack, improving safety and performance stability; the control module 85 can control the igniter 9 and the brushless motor 72; the 12V power battery pack uses a rechargeable lithium battery to supply power to the entire device.

[0047] The usage method and principle of the portable igniter of the present utility model are as follows:

[0048] (1). When in use, first connect the butane gas cylinder to the gas cylinder quick connector and tighten it.

[0049] (2). Long press the PWM switch to turn on the turbo fan; at this time, the outside air is sucked into the turbo fan through the air inlet, flows through the air channels of the turbo fan installation pipe and the barrel, and enters the mixing chamber; the air volume can be adjusted by pressing the PWM switch to adjust the speed of the turbo fan.

[0050] (3). Turn the adjustment knob on the gas cylinder quick connector, and butane flows from the gas cylinder into the gas connection channel of the gas guide column, then flows through the gas conduit, and finally sprays out through the gas nozzle into the mixing chamber; the gas (butane) flow rate can be adjusted by turning the adjustment knob.

[0051] (4). The butane and air in the mixing chamber are mixed to form a combustible mixture.

[0052] (5). The combustible mixture flows into the flame nozzle through the swirl vane.

[0053] (6). Hold down the MOS switch, and the igniter starts to work. The high-voltage current releases an electric spark through the wire passing through the barrel and the ignition electrode connected to the wire.

[0054] (7). The electric spark ignites the combustible gas near the flame nozzle to form a flame and spray out. After normal ignition, release the MOS switch, and the igniter stops working. At this time, it can be used for daily or industrial ignition.

[0055] (8). When shutting down, turn the butane adjustment knob to cut off the butane supply; long press the PWM switch to turn off the turbo fan; remove the butane gas cylinder.

[0056] (9) When the igniter runs out of power, the device can be charged through the type-c charging port at the bottom of the battery compartment.

[0057] The portable hand-held igniter of the present utility model has the following advantages:

[0058] 1. The portable hand-held igniter of the present utility model integrates functions of charging, air supply, gas supply, and ignition. The overall quality of the device is relatively light, making it suitable for scenarios where there is no fixed gas source but open-flame ignition is required.

[0059] 2. By adopting a gas guide column and a universal gas cylinder quick-connector structure, the portable hand-held igniter of the present utility model can be adapted to butane gas cylinders of various specifications on the market, and has a high replaceability.

[0060] 3. The portable hand-held igniter of the present utility model can use a pre-installed rechargeable battery or a detachable battery pack (similar to the lithium battery of power tools) as the power source.

[0061] 4. The portable hand-held igniter of the present utility model is provided with a charging interface. It can be charged by connecting to a 220v power socket through a mobile phone charger and a charging cable, or can be quickly charged through a mobile power supply (power bank) that supports the QC fast charging protocol.

[0062] 5. The turbine fan used in the portable hand-held igniter of the present utility model can achieve a speed regulation function through a PWM switch and a brushless electronic speed controller.

[0063] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A portable handheld igniter, characterized in that, Comprising: A flame nozzle, an ignition barrel and a handle; The flame nozzle is located at the front end of the ignition barrel, and an ignition electrode and a swirl vane are arranged in the cavity of the flame nozzle; A mixing chamber, a gas spray head, an air passage and a gas conduit are arranged in the cavity of the ignition barrel. The gas spray head is connected to the outlet of the gas conduit. The outlets of the gas conduit and the air passage communicate with the mixing chamber, and the swirl vane is located at the outlet of the mixing chamber; The cavity of the handle is divided into an upper fan chamber, a middle igniter chamber and a lower battery chamber from top to bottom; One end of the upper fan chamber is provided with an air suction port, and the other end is provided with a connecting pipe section. The connecting pipe section is connected to the rear end of the ignition barrel, and a fan assembly is installed in the upper fan chamber; an installation hole is provided at the connection between the connecting pipe section and the ignition barrel, and a gas guide column is fixedly installed in the installation hole. The lower end of the gas guide column is connected with a quick gas cylinder joint, and a gas connection channel communicating the gas cylinder and the gas conduit is arranged in the gas guide column; An igniter is installed in the middle igniter chamber, and the igniter is electrically connected to the ignition electrode; A battery assembly and a control module are installed in the lower battery chamber, and the control module is electrically connected to the fan assembly, the igniter and the battery assembly respectively.

2. The portable handheld igniter according to claim 1, wherein, Gas circulation holes are formed in the middle and on the side of the gas guide column. The middle circulation hole and the side circulation hole are arranged perpendicular to each other and communicate to form the gas connection channel. The lower end of the middle circulation hole is connected to the air outlet hole of the quick gas cylinder joint, and one end of the side circulation hole is connected to the gas conduit.

3. The portable handheld igniter according to claim 1, characterized in that, The battery assembly includes an equalization protection board and a 12V power battery pack. The equalization protection board is placed at the bottom of the lower battery chamber, the 12V power battery pack is placed on the equalization protection board, the control module is placed on the side of the 12V power battery pack, and the equalization protection board is electrically connected to the control module and the 12V power battery pack respectively.

4. The portable handheld igniter according to claim 3, wherein, A charging module, a PWM switch and a MOS switch are arranged on the outer surface of the shell of the ignition gun. The charging module is located at the bottom of the outer surface of the ignition gun shell, near the equalization protection board, and is electrically connected to the equalization protection board; the PWM switch is located on the outer side of the handle and between the fan assembly and the control module, and is used to control the switch of the fan assembly; the MOS switch is located on the inner side of the handle and between the igniter and the control module, and is used to control the switch of the igniter.

5. The portable hand-held igniter according to claim 4, characterized in that, The charging module is a type-c charging port.

6. The portable handheld igniter according to claim 1, characterized in that, The upper fan chamber includes a fan installation pipe. The rear end of the fan installation pipe is connected to the handle shell to form the upper fan chamber, and the front end of the fan installation pipe is connected to the rear end of the ignition barrel.

7. The portable handheld igniter according to claim 6, wherein, The front end of the fan installation pipe is of a reduced diameter structure.

8. The portable handheld igniter according to claim 1, wherein The fan assembly includes a turbo fan blade, a brushless motor and a brushless electronic speed controller. The brushless electronic speed controller, the brushless motor and the turbo fan blade are sequentially installed in the upper fan chamber from the air suction port to the connecting section.

9. The portable hand-held igniter according to claim 1, characterized in that, The gas nozzle is of a circular ring structure, and a plurality of gas spray holes are formed in the inner side of the circular ring. The gas spray holes are centripetal spray holes.

10. The portable handheld igniter according to claim 1, wherein, High-temperature resistant wires are used to connect between the electronic component modules, and the connection method is a quick plug connector.

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