Hand-held air-assisted spray gun

Abstract

The utility model belongs to the technical field of flame gun, and disclose a kind of hand-held air distribution type flame gun, including spray pipe and flame mechanism, the right end of spray pipe is fixedly connected with fixed cylinder, the right end of fixed cylinder is detachably communicated with micro fan, the right end of fixed cylinder is communicated with air inlet pipe, the top of air inlet pipe is communicated with holding pipe, the surface of holding pipe is equipped with several groups of vent, the holding pipe is provided with sealing mechanism for closing vent.The utility model can use the operation of micro fan to blow the right end of fixed cylinder, make wind blow to holding pipe through air inlet pipe, finally blow out through every group of vent, it can blow and cool the hand of personnel, avoid the problem that personnel long time hand-held holding pipe leads to perspiration easy to slip, ensure the cool of hand during the use of personnel.

Description

Technical Field

[0001] This utility model belongs to the field of flamethrower technology, specifically a handheld flamethrower with air supply. Background Technology

[0002] A flamethrower is a relatively new outdoor accessory, belonging to the category of outdoor cooking equipment. It's a ignition and heating tool derived from existing butane gas canisters. Outdoor cooking equipment generally refers to a stove and fuel (butane gas canister) used for cooking and boiling water in the wild, and is very convenient to carry. The flamethrower replaces the function of a stove, freeing the flame from a fixed position, making it easier to light a campfire and grill food.

[0003] A search revealed that patent CN221424922U discloses a one-button-triggered flame gun, comprising a housing with a lower interface for connecting to a gas cylinder and a nozzle for supplying gas from the cylinder. A pressable knob with a spring is located on one side of the housing. An outlet body is housed within the housing, equipped with a piezoelectric ceramic. A push-button switch is mounted on the piezoelectric ceramic and contacts the knob. A valve body is also located on the outlet body, passing through the housing and connected to the knob. This product, by pressing the knob, causes the first opening to push the push-button switch. When the switch is pushed, the piezoelectric ceramic is activated, generating a spark in the nozzle via a lead wire. This spark ignites the gas passing through the nozzle, thus completing the ignition function. Simultaneously, rotating the knob controls the flame intensity or shuts off the flame. This structure innovatively uses a push-button knob to achieve ignition and control of the flame intensity or shut-off in a single switch.

[0004] Analysis of the above technical solutions reveals that, due to the extended time required for personnel to use the flamethrower to light charcoal, the grip area of ​​the flamethrower tends to sweat, leading to slippage and hindering its use over extended periods. Therefore, we provide a handheld flamethrower with a fan to address these issues. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a handheld flamethrower with a pneumatic attachment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a handheld blower gun with air supply, comprising a nozzle and a flame-spraying mechanism, wherein a fixed cylinder is fixedly connected to the right end of the nozzle, a miniature fan is detachably connected to the right end of the fixed cylinder, an air inlet pipe is connected to the right end of the fixed cylinder, a grip tube is connected to the top end of the air inlet pipe, a plurality of ventilation holes are provided on the surface of the grip tube, and a sealing mechanism for closing the ventilation holes is provided inside the grip tube.

[0007] Preferably, the flame-spraying mechanism includes a nozzle and a lower connecting pipe. The nozzle is installed inside the spray pipe, and the lower connecting pipe is disposed through the middle of the fixed cylinder. The right end of the nozzle is connected to the lower connecting pipe. A snap-fit ​​component is installed at the bottom end of the lower connecting pipe, and a flame control component is installed at the top end of the lower connecting pipe. A push-button knob is installed on the surface of the flame control component.

[0008] Preferably, the right end of the fixed cylinder has a cavity, and the left end of the micro fan is threaded onto the right end of the fixed cylinder.

[0009] Preferably, the right end of the nozzle is connected to two opposing ventilation pipes, the right ends of the two ventilation pipes pass through the fixed cylinder and are connected to the cavity, the bottom end of the air inlet pipe is connected to the cavity, and a number of air inlet holes are opened on the right end surface of the nozzle.

[0010] Preferably, the sealing mechanism includes a rotating shaft, which is rotatably connected inside the grip tube. The right end of the rotating shaft passes through the grip tube and is fixedly connected to a handle. A sealing plate adapted to each set of ventilation holes is fixedly connected to the surface of the rotating shaft via a connecting rod.

[0011] Preferably, the left end of the grip tube is fixed to the surface of the flame control assembly, and the surface of the flame control assembly is provided with a positioning mechanism to prevent the movement of the pressing knob.

[0012] Preferably, the positioning mechanism includes a screw, which is rotatably connected to the surface of the flame control component. A guide rod is fixedly connected to the surface of the flame control component. One end of the screw is fixedly connected to a turntable. A positioning groove is provided on the surface of the pressing knob. An L-shaped insert is threaded onto the surface of the screw, and one end of the L-shaped insert is inserted into the positioning groove. The L-shaped insert is slidably sleeved on the surface of the guide rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the setting of a fixed cylinder, cavity, air inlet pipe, miniature fan, grip tube, and ventilation holes, can use the operation of the miniature fan to blow air onto the right end of the fixed cylinder, so that the air is blown into the grip tube through the air inlet pipe, and finally blown out through each set of ventilation holes, thereby cooling down the person's hands and avoiding the problem of sweating and slipping caused by holding the grip tube for a long time, thus ensuring that the person's hands are cool during use.

[0015] 2. With the sealing mechanism of this utility model, when the device is not used for a long time, the operator can rotate the handle to drive the shaft to rotate, so that each sealing plate blocks each set of ventilation holes, thereby sealing the grip tube and preventing external dust and impurities from entering the grip tube, thus ensuring the normal ventilation effect of the grip tube in the future.

[0016] 3. With the combined design of the flame-spraying mechanism and the positioning mechanism, when the device is not in use for a long time, rotating the actuating wheel will gradually insert one end of the L-shaped rod into the positioning groove, thereby positioning the pressing knob and preventing it from rotating or pressing, thus avoiding accidental ignition. When the user is using the device, simply rotating the actuating wheel in the opposite direction will move the L-shaped rod away from the pressing knob, making operation more convenient. Users can control the flame intensity, switch, and positioning of the pressing knob with just their thumb, improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the miniature fan of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of this utility model after removing the miniature fan;

[0021] Figure 5 This is a schematic diagram of the sealing mechanism of this utility model;

[0022] Figure 6 This utility model Figure 2 An enlarged schematic diagram of the structure at point A in the middle.

[0023] In the diagram: 1. Nozzle; 2. Air inlet; 3. Fixed cylinder; 4. Lower connecting pipe; 5. Press knob; 6. Flame control assembly; 7. Handle; 8. Air inlet pipe; 9. Turn handle; 10. Ventilation pipe; 11. Clip-on component; 12. Miniature fan; 13. Ventilation hole; 14. Actuating wheel; 15. Sealing plate; 16. Shaft; 17. Screw; 18. L-shaped insert; 19. Positioning groove; 20. Guide rod; 21. Nozzle; 22. Cavity. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-6As shown, this embodiment proposes a handheld blower gun with a fan, including a nozzle 1 and a flame-throwing mechanism. A fixed cylinder 3 is fixedly connected to the right end of the nozzle 1. A miniature fan 12 is detachably connected to the right end of the fixed cylinder 3. An air inlet pipe 8 is connected to the right end of the fixed cylinder 3. A grip tube 7 is connected to the top of the air inlet pipe 8. Several sets of ventilation holes 13 are formed on the surface of the grip tube 7. A sealing mechanism for closing the ventilation holes 13 is provided inside the grip tube 7. The miniature fan 12 is an existing mature component and is rechargeable, so it can be used normally outdoors. With the above-described structure, the micro fan 12 can blow air onto the right end of the fixed cylinder 3, allowing the air to be blown into the grip tube 7 through the air inlet pipe 8 and finally out through each set of ventilation holes 13. This can cool down the hands of the user and prevent the grip tube 7 from becoming sweaty and slippery due to prolonged holding, thus ensuring that the user's hands remain cool during use. The mechanics, parts, and equipment in this device all use conventional models in the existing technology, and the circuit connection also uses conventional connection methods in the existing technology, which will not be described in detail here.

[0026] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the flame-spraying mechanism includes a nozzle 21 and a lower connecting pipe 4. The nozzle 21 is installed inside the nozzle pipe 1, and the lower connecting pipe 4 is installed through the middle of the fixed cylinder 3. The right end of the nozzle 21 is connected to the lower connecting pipe 4. A snap-fit ​​part 11 is installed at the bottom end of the lower connecting pipe 4, and a flame control component 6 is installed at the top end of the lower connecting pipe 4. A pressing knob 5 is installed on the surface of the flame control component 6. With the above structure, the personnel connect the gas cylinder through the snap-fit ​​part 11. Then, the personnel control whether the lower connecting pipe 4 and the nozzle 21 are connected or the size of the connection area by rotating the pressing knob 5, so as to control the gas to be sprayed out from the nozzle 21. Then, the personnel press the pressing knob 5 to press the igniter in the flame control component 6, thereby igniting the gas sprayed out from the nozzle 21 and completing the ignition function. In addition, the above components are all existing mature components, which will not be described in detail here. When the personnel hold the nozzle 7, they only need to use their thumb to rotate and press the pressing knob 5 to control the flame size or turn off the flame, making the operation more convenient.

[0027] like Figure 3 and Figure 4 As shown, a cavity 22 is provided at the right end of the fixed cylinder 3, and the left end of the miniature fan 12 is threaded onto the right end of the fixed cylinder 3, which makes it easy to remove the miniature fan 12 from the right end of the fixed cylinder 3 for replacement or maintenance, making the operation more convenient.

[0028] like Figure 1 , Figure 2 and Figure 4As shown, the right end of the nozzle 1 is connected to two opposing ventilation pipes 10. The right ends of both ventilation pipes 10 pass through the fixed cylinder 3 and are connected to the cavity 22. The bottom end of the air inlet pipe 8 is connected to the cavity 22. Several air inlet holes 2 are opened on the right end surface of the nozzle 1. With the above structure, the external air is sent into the cavity 22 by the operation of the micro fan 12, and then flows into the nozzle 1 through the two ventilation pipes 10. This helps to actively increase the air intake in the nozzle 1, improve the uniformity of fuel and air mixing, and also cool down the nozzle 1 and the nozzle 21.

[0029] like Figure 1 , Figure 4 and Figure 5 As shown, the sealing mechanism includes a rotating shaft 16, which is rotatably connected inside the grip tube 7. The right end of the rotating shaft 16 passes through the grip tube 7 and is fixedly connected to a handle 9. The surface of the rotating shaft 16 is fixedly connected to a sealing plate 15 that matches each set of ventilation holes 13 via a connecting rod. With the above structure, when the device is not used for a long time, in order to avoid blockage caused by impurities entering the grip tube 7, the user rotates the handle 9 to drive the rotating shaft 16 to rotate, so that each sealing plate 15 blocks each set of ventilation holes 13, thereby sealing the grip tube 7 and preventing external dust and impurities from entering the grip tube 7, thus ensuring the normal ventilation effect of the grip tube 7. In order to make it easy for the user to observe the sealing condition of the ventilation holes 13, a cross groove is opened on the surface of the handle 9. The cross groove corresponds to each sealing plate 15. Therefore, when the cross groove is aligned, the ventilation hole 13 is in a sealed state.

[0030] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the left end of the grip tube 7 is fixed to the surface of the flame control component 6. The surface of the flame control component 6 is provided with a positioning mechanism to prevent the pressing knob 5 from moving, which ensures the overall stability of the grip tube 7 and the flame control component 6 on the fixed cylinder 3. This allows the person to easily operate the pressing knob 5 when holding the grip tube 7. With the setting of the positioning mechanism, when the pressing knob 5 is not in use, the positioning mechanism can be used to prevent the pressing knob 5 from rotating or moving at will.

[0031] like Figure 4 and Figure 6As shown, the positioning mechanism includes a screw 17, which is rotatably connected to the surface of the flame control assembly 6. A guide rod 20 is fixedly connected to the surface of the flame control assembly 6. One end of the screw 17 is fixedly connected to a turntable 14. A positioning groove 19 is provided on the surface of the pressing knob 5. An L-shaped insert 18 is threaded onto the surface of the screw 17, and one end of the L-shaped insert 18 is inserted into the positioning groove 19. The L-shaped insert 18 is slidably sleeved on the surface of the guide rod 20. With the above structure, when it is necessary to adjust the pressing knob 5... During positioning, simply rotate the dial wheel 14 to gradually insert one end of the L-shaped rod 18 into the positioning groove 19, thereby positioning the pressing knob 5 and preventing it from rotating or pressing, thus avoiding accidental ignition. When in normal use, simply rotate the dial wheel 14 in the opposite direction to move the L-shaped rod 18 away from the pressing knob 5. This makes operation more convenient, allowing users to control the flame size, switch, and positioning of the pressing knob 5 using only their thumb.

[0032] The working principle and usage process of this utility model are as follows: When in use, the gas cylinder is connected via the locking connector 11. Then, the operator controls the connection between the lower connecting pipe 4 and the nozzle 21 by rotating and pressing the knob 5, adjusting the connection area to control the gas flow from the nozzle 21. Pressing the knob 5 then activates the igniter in the flame control assembly 6, igniting the gas from the nozzle 21. At this time, the operator holds the holding pipe 7 and turns on the power to the miniature fan 12. The miniature fan 12 draws external air into the cavity 22, which then flows through the two ventilation pipes 10 into the nozzle 1. This actively increases the air intake in the nozzle 1, improving the uniformity of fuel-air mixing. Air is blown into the grip tube 7 through the air inlet pipe 8 and finally out through each set of ventilation holes 13, which can cool down the hands of the user and prevent the grip tube 7 from sweating and slipping due to prolonged holding. This ensures that the user's hands are cool during use. When the device is not used for a long time, rotating the toggle wheel 14 will drive one end of the L-shaped plug 18 to gradually insert into the positioning groove 19, thereby positioning the pressing knob 5 and preventing the pressing knob 5 from being rotated or pressed to avoid accidental sparking. Then, the user can rotate the handle 9 to drive the rotating shaft 16 to rotate, so that each sealing plate 15 blocks the corresponding set of ventilation holes 13, thereby sealing the grip tube 7 and preventing external dust and impurities from entering the grip tube 7, ensuring the normal ventilation effect of the grip tube 7 in the future.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A handheld blower gun, comprising a nozzle (1) and a flame-spraying mechanism, characterized in that: The right end of the nozzle (1) is fixedly connected to a fixed cylinder (3), and the right end of the fixed cylinder (3) is detachably connected to a miniature fan (12). The right end of the fixed cylinder (3) is connected to an air inlet pipe (8), and the top end of the air inlet pipe (8) is connected to a grip pipe (7). Several sets of ventilation holes (13) are opened on the surface of the grip pipe (7), and a sealing mechanism for sealing the ventilation holes (13) is provided inside the grip pipe (7).

2. The handheld blower gun according to claim 1, characterized in that: The flame-spraying mechanism includes a nozzle (21) and a lower pipe (4). The nozzle (21) is installed inside the nozzle pipe (1). The lower pipe (4) is installed through the middle of the fixed cylinder (3). The right end of the nozzle (21) is connected to the lower pipe (4). A snap-fit ​​component (11) is installed at the bottom end of the lower pipe (4). A flame control component (6) is installed at the top end of the lower pipe (4). A press knob (5) is installed on the surface of the flame control component (6).

3. A handheld flamethrower gun with air supply according to claim 1, characterized in that: The right end of the fixed cylinder (3) has a cavity (22), and the left end of the micro fan (12) is threaded onto the right end of the fixed cylinder (3).

4. A handheld flamethrower gun with air supply according to claim 3, characterized in that: The right end of the nozzle (1) is connected to two opposing ventilation pipes (10). The right ends of the two ventilation pipes (10) pass through the fixed cylinder (3) and are connected to the cavity (22). The bottom end of the air inlet pipe (8) is connected to the cavity (22). Several air inlet holes (2) are opened on the right end surface of the nozzle (1).

5. A handheld flamethrower gun with air supply according to claim 1, characterized in that: The sealing mechanism includes a rotating shaft (16), which is rotatably connected inside the grip tube (7). The right end of the rotating shaft (16) passes through the grip tube (7) and is fixedly connected to a handle (9). The surface of the rotating shaft (16) is fixedly connected to a sealing plate (15) that is compatible with each set of ventilation holes (13) via a connecting rod.

6. A handheld flamethrower gun with air supply according to claim 2, characterized in that: The left end of the grip tube (7) is fixed to the surface of the flame control assembly (6), and the surface of the flame control assembly (6) is provided with a positioning mechanism to prevent the movement of the pressing knob (5).

7. A handheld flamethrower gun with air supply according to claim 6, characterized in that: The positioning mechanism includes a screw (17), which is rotatably connected to the surface of the flame control assembly (6). A guide rod (20) is fixedly connected to the surface of the flame control assembly (6). A turntable (14) is fixedly connected to one end of the screw (17). A positioning groove (19) is provided on the surface of the pressing knob (5). An L-shaped insert (18) is threaded onto the surface of the screw (17), and one end of the L-shaped insert (18) is inserted into the positioning groove (19). The L-shaped insert (18) is slidably sleeved on the surface of the guide rod (20).

Images