A flame projection device
By introducing explosion-proof barriers and casters into the flamethrower, the safety issues of the device in the event of an explosion are solved, and the oil injection pipe is protected by a retractable structure, enabling convenient movement and safe use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI BAIYUANCHUAN IND CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-02
Smart Images
Figure CN224316162U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of combustion equipment technology, specifically a flame-spraying device. Background Technology
[0002] The flamethrower is a combustion device with a high-strength steel plate oil storage tank as its core, integrating pressure control, fuel delivery, safety protection, and flame adjustment functions. It is widely used in industrial processing (such as metal surface treatment), outdoor emergency heating, stage special effects, and other fields. In practical use, it is safe, reliable, and offers multiple layers of protection.
[0003] It has advantages such as easy operation, durable structure and efficient maintenance.
[0004] Existing flamethrower devices require the use of pressure vessels to store gasoline. In the event of an accidental explosion or collision with a moving object, the lack of a protective structure can lead to damage to surrounding equipment or the device itself, posing a safety hazard to the use of existing flamethrower devices. In addition, existing flamethrower devices require the user to lift the entire device for use or move the entire device to the operating position, and the liquid delivery pipes lack a retractable structure, making them prone to snagging on foreign objects when not in use, reducing the practicality of existing flamethrower devices. Utility Model Content
[0005] In view of the shortcomings of the prior art, this utility model provides a flame-throwing device that solves the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a flame-spraying device, comprising a base, an air pressure pump, a pressure vessel, and an electrical control box mounted on the upper part of the base, an explosion-proof barrier mounted above the base, a connecting pipe between the air pressure pump and the pressure vessel, three sets of connecting pipes, a thermometer, and a pressure gauge fixedly passing through the upper part of the pressure vessel, a liquid level indicator and an oil spray pipe passing through the side wall of the pressure vessel, an oil spray gun mounted at one end of the oil spray pipe, an mounting plate mounted on the side wall of the explosion-proof barrier, and a mounting cover mounted on the end face of the mounting plate, a U-shaped groove provided on the upper part of the base, a frame plate mounted on the lower part of the explosion-proof barrier, and insertion holes provided on both sides of the frame plate, two sets of threaded through holes provided on the side wall of the U-shaped groove, and mounting bolts passing through the interior of both sets of threaded through holes, insertion rods mounted on the opposing ends of the two sets of mounting bolts, and four sets of second self-locking casters mounted on the lower part of the frame plate.
[0007] Optionally, the rear end face of the mounting plate is provided with a limiting groove, and a connecting screw slides through the inside of the limiting groove. A push wheel is installed at the front end of the connecting screw, and two sets of connecting nuts are sleeved on the side wall of the connecting screw. Two sets of limiting rollers are installed inside the mounting cover through bearings.
[0008] Optionally, the connecting screw and the two sets of connecting nuts are threaded together.
[0009] Optionally, the two sets of threaded through holes are mutually engaged with the two sets of mounting bolt threads.
[0010] Optionally, a threaded pipe is fixedly inserted through the upper part of the explosion-proof barrier, and a threaded cap is provided inside the threaded pipe.
[0011] Optionally, the sidewalls of the three sets of connecting pipes are sequentially provided with an automatic pressure relief valve, a breather valve, and a second one-way check valve; the sidewall of the fuel injection pipe is provided with a first one-way check valve; and the sidewall of the connecting pipe is provided with a copper ball valve.
[0012] Optionally, the lower part of the base is equipped with four sets of first self-locking casters.
[0013] Optionally, a storage battery is installed inside the electrical control box, and a push-button switch is installed on the surface of the fuel injector. The push-button switch is electrically connected to the air pressure pump and the storage battery via wires.
[0014] This utility model provides a flame-throwing device, which has the following beneficial effects:
[0015] 1. This flamethrower is equipped with an explosion-proof barrier. Through the physical interception and explosion impact reduction function of the movable explosion-proof barrier, it effectively protects the pressure vessel from collisions with foreign objects, reduces the damage to the equipment and surrounding area caused by accidental explosions, and achieves quick installation and fixation through threaded through holes and mounting bolts, taking into account both flexibility and safety.
[0016] 2. This flame-spraying device is equipped with a mounting plate and a mounting cover. The base is equipped with four sets of first self-locking universal wheels, which can be easily pushed to the use position without lifting the entire device, reducing the burden of manpower. When in use, only the oil spray gun needs to be operated, which greatly improves the convenience of operation. The mounting plate and the mounting cover combine to form a winding structure for the oil spray pipe. The oil spray pipe is folded by pushing the wheels and guided by the limit roller. It is fixed with the connecting screw and the connecting nut to prevent the oil spray pipe from being exposed and hooking or pulling on foreign objects. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is the front view of the present invention;
[0019] Figure 3 This is a perspective view of the mounting plate and mounting cover of this utility model;
[0020] Figure 4 This utility model Figure 1 Enlarged view of A in the middle;
[0021] Figure 5 This utility model Figure 1 Enlarged view of B in the middle;
[0022] Figure 6 This utility model Figure 1 A magnified view of C.
[0023] In the diagram: 1. Base; 2. Air pressure pump; 3. Pressure vessel; 4. Connecting pipe; 5. Copper ball valve; 6. Connecting pipe; 7. Thermometer; 8. Pressure gauge; 9. Liquid level indicator; 10. Injection pipe; 11. First one-way check valve; 12. Injection gun; 13. Automatic pressure relief valve; 14. Breather valve; 15. Second one-way check valve; 16. First self-locking caster wheel; 17. U-shaped groove; 18. Explosion-proof railing; 19. Frame plate; 20. Second self-locking caster wheel; 21. Threaded through hole; 22. Mounting bolt; 23. Insert rod; 24. Insertion hole; 25. Mounting plate; 26. Mounting cover; 27. Limiting roller; 28. Limiting through groove; 29. Connecting screw; 30. Push wheel; 31. Connecting nut; 32. Threaded pipe; 33. Threaded cap. 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5A flame-throwing device includes a base 1. An air pressure pump 2, a pressure vessel tank 3, and an electrical control box are mounted on the upper part of the base 1. An explosion-proof barrier 18 is mounted above the base 1. A connecting pipe 4 is installed between the air pressure pump 2 and the pressure vessel tank 3. One end of the connecting pipe 4 is snapped into the output end of the air pressure pump 2, and the other end of the connecting pipe 4 is fixedly inserted into the interior of the pressure vessel tank 3. The connecting pipe 4 serves to transmit gas. Three sets of connecting pipes 6, a thermometer 7, and a pressure gauge 8 are fixedly inserted through the upper part of the pressure vessel tank 3. A liquid level indicator 9 and an oil spray pipe 10 are inserted through the side wall of the pressure vessel tank 3. An oil spray gun 12 is installed at one end of the oil spray pipe 10. An installation plate is installed on the side wall of the explosion-proof barrier 18. 25, and the end face of the mounting plate 25 is equipped with a mounting cover 26. The upper part of the base 1 is provided with a U-shaped groove 17. The lower part of the explosion-proof barrier 18 is equipped with a frame plate 19, and both sides of the frame plate 19 are provided with insertion holes 24. The side wall of the frame plate 19 is provided with a through hole to ensure that one end of the fuel injection pipe 10 can pass through and exit the interior of the explosion-proof barrier 18. The side wall of the U-shaped groove 17 is provided with two sets of threaded through holes 21, and the interior of the two sets of threaded through holes 21 is provided with mounting bolts 22. The opposing ends of the two sets of mounting bolts 22 are each equipped with a plug rod 23. The lower part of the frame plate 19 is equipped with four sets of second self-locking universal wheels 20, and the four sets of second self-locking universal wheels 20 are fixedly connected to the lower part of the frame plate 19 by screws.
[0026] Specifically, the movable explosion-proof barrier 18 effectively protects the pressure vessel tank 3 from collisions with foreign objects through its physical interception and explosion impact reduction functions, reducing the damage to the equipment and surrounding area caused by accidental explosions. Furthermore, it enables quick installation and fixation through the threaded through hole 21 and mounting bolts 22, balancing flexibility and safety.
[0027] In one embodiment, a limiting groove 28 is provided on the rear end face of the mounting plate 25, and a connecting screw 29 slides through the inside of the limiting groove 28. A push wheel 30 is installed at the front end of the connecting screw 29. An opening is provided at the lower part of the mounting cover 26 to ensure that the fuel injection pipe 10 can be folded into the inside of the mounting cover 26. Two sets of connecting nuts 31 are sleeved on the side wall of the connecting screw 29. Two sets of limiting rollers 27 are installed inside the mounting cover 26 through bearings. The two sets of limiting rollers 27 can prevent the folded fuel injection pipe 10 from being scratched by the mounting cover 26.
[0028] For details, please refer to Figure 1 The base 1 is equipped with four sets of first self-locking universal wheels 16, which can be easily pushed to the use position without lifting the entire equipment, reducing the burden of manpower. When in use, only the oil spray gun 12 needs to be operated, which greatly improves the ease of operation. The mounting plate 25 and the mounting cover 26 are combined to form the winding structure of the oil spray pipe 10. The oil spray pipe 10 is folded by pushing the wheel 30 and guided by the limiting roller 27. It is fixed with the connecting screw 29 and the connecting nut 31 to prevent the oil spray pipe 10 from being exposed and hooking foreign objects.
[0029] In one embodiment, the connecting screw 29 is threadedly engaged with two sets of connecting nuts 31.
[0030] For details, please refer to Figure 1 , Figure 3 and Figure 6 The two sets of connecting nuts 31 can be rotated clockwise and counterclockwise to adjust their positions. The two sets of connecting nuts 31 can clamp and fix the mounting plate 25.
[0031] In one embodiment, a threaded tube 32 is fixedly inserted through the upper part of the explosion-proof barrier 18, and a threaded cap 33 is provided inside the threaded tube 32.
[0032] For details, please refer to Figure 1 and Figure 4 By rotating the threaded cover 33 clockwise or counterclockwise, the threaded cover 33 and the threaded tube 32 can be installed and removed.
[0033] In one embodiment, the sidewalls of the three sets of connecting pipes 6 are sequentially provided with an automatic pressure relief valve 13, a breather valve 14, and a second one-way check valve 15; the sidewall of the fuel injection pipe 10 is provided with a first one-way check valve 11; and the sidewall of the connecting pipe 4 is provided with a copper ball valve 5.
[0034] For details, please refer to Figure 1 and Figure 4 The breather valve 14 can effectively release the gas generated by shaking the pressure vessel tank 3.
[0035] In one embodiment, four sets of first self-locking casters 16 are installed on the lower part of the base 1.
[0036] For details, please refer to Figure 1 , Figure 2 and Figure 5 The four sets of first self-locking casters 16 are fixedly connected to the lower part of the base 1 by screws.
[0037] In one embodiment, a storage battery is installed inside the electrical control box, and a push-button switch is installed on the surface of the fuel injector 12. The push-button switch is electrically connected to the air pressure pump 2 and the storage battery via wires.
[0038] For details, please refer to Figure 1 and Figure 2 The control circuit of the push-button switch can be implemented by simple programming by those skilled in the art. It is common knowledge in the field. Since it is only used and not modified, the control method and circuit connection will not be described in detail.
[0039] In this invention, the working steps of the device are as follows:
[0040] In actual use of the flamethrower, the explosion-proof barrier 18 can be moved on the ground with the help of four sets of second self-locking casters 20. When the explosion-proof barrier 18 is moved around the base 1, it can be lifted and placed on the base 1. After the frame plate 19 is inserted into the U-shaped groove 17, the two sets of threaded through holes 21 and two sets of mounting bolts 22 are engaged with each other. The operator rotates the two sets of mounting bolts 22 clockwise by hand. When the two sets of insertion rods 23 are inserted into the two sets of insertion holes 24 respectively, the installation of the explosion-proof barrier 18 is completed. The operator rotates the threaded cover 33 counterclockwise by hand to remove it. The automatic pressure relief valve 13 can be opened through the threaded pipe 32. When the pressure inside the pressure vessel tank 3 is relieved... When the pressure reaches 0 MPa, connect the rightmost set of connecting pipes 6 to the output end of the external oil pump. The external oil pump can inject gasoline into the pressure vessel tank 3. During injection, the airflow in the pressure vessel tank 3 can be discharged through the automatic pressure relief valve 13. The operator can observe the liquid level in the pressure vessel tank 3 through the liquid level display instrument 9. Then close the automatic pressure relief valve 13 and open the copper ball valve 5. At this time, the operator presses the push switch, and the air pressure pump 2 starts to work. The gasoline inside the pressure vessel tank 3 can flow through the fuel injection pipe 10 and finally be sprayed out through the fuel injection gun 12. A remote igniter can be installed at the output end of the fuel injection gun 12, and another operator can remotely control the ignition. After the flame-spraying operation is completed, the explosion-proof barrier 18 can prevent foreign objects from contacting the pressure vessel tank 3. In the event of an accidental explosion of the pressure vessel tank 3, the explosion-proof barrier 18 can reduce the explosive force. The explosion-proof barrier 18 provides a protective structure, reducing damage to surrounding equipment or the device itself, thus ensuring the safe use of the flame-spraying device. After the flame-spraying operation is completed, the operator manually moves the push wheel 30 upwards. The push wheel 30 can push the oil spray pipe 10 to fold in half, allowing the folded oil spray pipe 10 to enter the interior of the mounting cover 26. During this process, the two sets of limiting rollers 27 prevent the mounting cover 26 from scratching the folded oil spray pipe 10. After the folded oil spray pipe 10 operation is completed, the... The connecting screw 29 is threaded with two sets of connecting nuts 31. The operator can rotate the two sets of connecting nuts 31 clockwise and counterclockwise by hand. When the two sets of connecting nuts 31 come into contact with the mounting plate 25, the folded oil spray pipe 10 is fixed inside the mounting cover 26. Foreign objects cannot touch the folded oil spray pipe 10. During the spraying operation, the operator only needs to lift the oil spray gun 12 to spray. The base 1 can be moved to the use position by using the four sets of first self-locking universal wheels 16. With the installation plate 25 and mounting cover 26, the spraying operation can be carried out conveniently, and the unused oil spray pipe can be protected, which improves the practicality of the spraying device.
[0041] 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 flame-throwing device, comprising a base (1), characterized in that: An air pressure pump (2), a pressure vessel tank (3), and an electrical control box are installed on the upper part of the base (1). An explosion-proof barrier (18) is installed above the base (1). A connecting pipe (4) is installed between the air pressure pump (2) and the pressure vessel tank (3). Three sets of connecting pipes (6), a thermometer (7), and a pressure gauge (8) are fixedly inserted through the upper part of the pressure vessel tank (3). A liquid level indicator (9) and an oil spray pipe (10) are inserted through the side wall of the pressure vessel tank (3). An oil spray gun (12) is installed at one end of the oil spray pipe (10). An installation plate is installed on the side wall of the explosion-proof barrier (18). 25), and an installation cover (26) is installed on the end face of the mounting plate (25). A groove (17) is provided on the upper part of the base (1). A frame plate (19) is installed on the lower part of the explosion-proof railing (18). Insertion holes (24) are provided on both sides of the frame plate (19). Two sets of threaded through holes (21) are provided on the side wall of the groove (17). Mounting bolts (22) are passed through the interior of the two sets of threaded through holes (21). Insert rods (23) are installed on the opposite ends of the two sets of mounting bolts (22). Four sets of second self-locking casters (20) are installed on the lower part of the frame plate (19).
2. The flame-throwing device according to claim 1, characterized in that: The rear end face of the mounting plate (25) is provided with a limiting groove (28), and a connecting screw (29) slides through the inside of the limiting groove (28). A push wheel (30) is installed at the front end of the connecting screw (29). Two sets of connecting nuts (31) are sleeved on the side wall of the connecting screw (29). Two sets of limiting rollers (27) are installed inside the mounting cover (26) through bearings.
3. A flame-throwing device according to claim 2, characterized in that: The connecting screw (29) and the two sets of connecting nuts (31) are threadedly engaged with each other.
4. A flame-throwing device according to claim 1, characterized in that: The two sets of threaded through holes (21) are threadedly engaged with the two sets of mounting bolts (22).
5. A flame-throwing device according to claim 1, characterized in that: The upper part of the explosion-proof barrier (18) is fixedly penetrated by a threaded pipe (32), and a threaded cap (33) is provided inside the threaded pipe (32).
6. A flame-throwing device according to claim 1, characterized in that: The side walls of the three sets of connecting pipes (6) are provided with an automatic pressure relief valve (13), a breather valve (14) and a second one-way check valve (15) in sequence. The side wall of the oil injection pipe (10) is provided with a first one-way check valve (11), and the side wall of the connecting pipe (4) is provided with a copper ball valve (5).
7. A flame-throwing device according to claim 1, characterized in that: The lower part of the base (1) is equipped with four sets of first self-locking casters (16).
8. A flame-throwing device according to claim 1, characterized in that: The electrical control box is equipped with a storage battery, and the surface of the fuel injector (12) is equipped with a push switch. The push switch is electrically connected to the air pressure pump (2) and the storage battery via wires.