A type of smoking pipe

By combining air pump delivery and electric heating wire, along with an oil baffle ring and control components, the problem of accurately controlling the amount and concentration of smoke in traditional smoke guns has been solved. This achieves stable and uniform smoke generation and multiple working modes, improving the accuracy and safety of fire detection.

CN122075985APending Publication Date: 2026-05-26WANLIN FIRE TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WANLIN FIRE TECH CO LTD
Filing Date
2026-04-15
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional smoking guns have difficulty precisely controlling the amount and concentration of smoke produced, and pose safety hazards.

Method used

It adopts a combination of air pump delivery and electric heating wire heating. The oil in the oil chamber is heated and vaporized to form smoke through the oil guide cotton, and then discharged through the air duct. The oil baffle ring is used to prevent oil leakage. Combined with the control components, it realizes multiple working modes.

Benefits of technology

It achieves stable and uniform smoke generation, can accurately control the amount of smoke, and has multiple working modes to adapt to different needs, thus improving the accuracy and safety of fire detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a smoke gun, belonging to the field of fire-fighting equipment, which includes an end cap, a smoke generating assembly, an air supply assembly, an annular oil pipe, an exhaust assembly, a detection probe, and a control assembly. The end cap has an installation chamber; the air supply assembly includes an installation sleeve and an air pump; the smoke generating assembly includes a sleeve, oil-guiding cotton, and a first heating wire, etc.; the oil chamber is formed by multiple components; the exhaust assembly includes an exhaust pipe, an exhaust head, and a second heating wire; the control assembly controls the on / off of various power supplies via a controller; and the detection probe is communicatively connected to the controller. This application has the effect of precisely controlling the amount and concentration of smoke generated.
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Description

Technical Field

[0001] This application relates to the field of fire-fighting equipment, and in particular to a smoke gun. Background Technology

[0002] In the field of fire protection, smoke guns are widely used as an important testing device. Smoke guns can simulate the smoke environment produced by a fire, helping to test the sensitivity and reliability of fire protection systems, thereby ensuring the safety of buildings and personnel. Smoke guns play an indispensable role in the daily maintenance and inspection of fire protection facilities, as well as in fire simulation experiments, and their technological advancements are of great significance for improving fire safety levels.

[0003] Traditional smoke guns typically produce smoke by heating specific smoke-generating materials using a simple heating device. Some produce smoke by burning specific solid materials, which may generate open flames and pose certain safety hazards. Others utilize chemical reactions to generate smoke, but the storage and use of these chemicals require specific conditions, making the process relatively complex.

[0004] However, existing smoke gun technologies have significant drawbacks. Traditional heating or combustion methods struggle to precisely control the amount and concentration of smoke produced. Summary of the Invention

[0005] In order to precisely control the amount and concentration of smoke generated, this application provides a smoke gun.

[0006] The smoking gun provided in this application adopts the following technical solution: A smoking gun includes an end cap, a smoke generating assembly, and a gas supply assembly; In the first direction, one end of the end cap is a detection end and the other end is a connection end; the end cap has an inwardly recessed mounting chamber at the connection end along the first direction; The gas supply assembly includes: A mounting sleeve fixedly connected to the end cap connection end; And an air pump fixedly connected inside the mounting sleeve, the air pump's outlet port facing the connection end of the end cap; The flue gas generating assembly includes: A cylindrical sleeve is coaxially fixedly connected to the mounting chamber; an air duct is formed between the end wall of the sleeve near the detection end and the end wall of the mounting chamber, and a smoke outlet hole communicating with the air duct is opened on the peripheral wall of the end cap; a first oil baffle ring and a second oil baffle ring are coaxially fixedly connected to the outer peripheral wall of the sleeve, the first oil baffle ring is located on the side of the second oil baffle ring near the detection end, an oil cavity is formed between the outer wall of the sleeve and the inner wall of the mounting chamber, and in a first direction, both ends of the oil cavity are blocked by the first oil baffle ring and the second oil baffle ring; an oil outlet hole communicating with the oil cavity and the inner side of the sleeve is opened through the tube wall of the sleeve; An oil-guiding cotton is coaxially fixedly connected to the inner side of the sleeve, and the air outlet port of the air pump is inserted into the oil-guiding cotton; And a first heating wire fixedly connected inside the oil-wicking cotton.

[0007] By adopting the above technical solution, the oil in the oil cavity flows into the oil-guiding cotton through the oil outlet and permeates the entire oil-guiding cotton. After heating the first heating wire located inside the oil-guiding cotton, the oil inside the oil-guiding cotton is heated and vaporized. The airflow from the air pump carries the vaporized oil out, thereby forming smoke. The smoke is discharged through the air duct and the smoke outlet, achieving stable and uniform smoke generation. Furthermore, the amount of smoke generated can be controlled according to the air supply of the air pump and the heating power of the first heating wire. At the same time, the first and second oil-blocking rings seal both ends of the oil cavity, preventing oil leakage between the sleeve and the end cap.

[0008] Optionally, it also includes a transparent annular oil pipe, wherein in the first direction, one end of the oil pipe is coaxially and fixedly connected to the connecting end of the end cap, and the other end is coaxially and fixedly connected to the mounting sleeve. The oil cavity is formed by the inner wall of the mounting cavity, the inner wall of the oil pipe, the first oil baffle ring, and the second oil baffle ring.

[0009] By adopting the above technical solution, the remaining amount of oil in the oil chamber can be easily observed, facilitating timely replenishment.

[0010] Optionally, it also includes an exhaust assembly, the exhaust assembly comprising: An exhaust pipe is fixedly connected to the end cap. The exhaust pipe is perpendicular to the first direction. One end of the exhaust pipe is connected to the air duct, and the other end extends to the outside of the end cap.

[0011] By adopting the above technical solution, an exhaust pipe that connects to the air duct and extends to the end cap can be added, giving the smoking gun an additional gas emission channel, enriching its functions and meeting different usage needs.

[0012] Optionally, the exhaust assembly further includes: An exhaust head is coaxially fixedly connected to the end of the exhaust pipe away from the end cap, and the outer diameter of the exhaust head is smaller than the outer diameter of the exhaust pipe.

[0013] By adopting the above technical solution, the design of the exhaust head outer diameter being smaller than the exhaust pipe outer diameter can better adapt to small spaces, making it easier for the smoking gun to be used in environments with limited space.

[0014] Optionally, a second heating wire is fixedly connected inside the exhaust pipe.

[0015] By adopting the above technical solution, a second heating wire is fixedly connected inside the exhaust pipe. When the second heating wire is heated alone and the air pump is activated, the smoke gun can blow out hot air. In addition, with the control components, it can realize three working modes: spraying smoke, spraying hot air, and blowing air outward.

[0016] Optionally, it also includes a detection probe, which is fixedly connected to the detection end wall of the end cap.

[0017] By adopting the above technical solution, the smoking gun has a detection function. The detection probe can emit a detection signal so that the subsequent controller can control the start and stop of the first power supply, the second power supply and the third power supply according to the detection signal.

[0018] Optionally, it may also include a control component, the control component comprising: The controller is fixedly connected to the mounting sleeve; A first power source is communicatively connected to the controller, the first power source being used to supply power to the air pump, and the controller being used to send start / stop signals to the first power source to control the on / off state of the first power source.

[0019] By adopting the above technical solution, the controller can control the on / off of the first power supply, thereby realizing the control of the air pump's start and stop. The operating status of the smoke gun can be flexibly adjusted, such as turning on the air pump to cooperate with other components to generate smoke, heat, or simply blow air.

[0020] Optionally, the control assembly further includes a second power supply fixedly connected to the mounting sleeve, the second power supply being used to supply power to the first heating wire, and the controller being used to send a start / stop signal to the second power supply to control the on / off state of the second power supply.

[0021] By adopting the above technical solution, the second power source supplies power to the first heating wire, and the controller controls the on / off state of the second power source, which can flexibly control the working state of the first heating wire and further precisely regulate the generation of smoke.

[0022] Optionally, the control assembly further includes a third power supply fixedly connected to the mounting sleeve, the third power supply being used to supply power to the second heating wire, and the controller being used to send a start / stop signal to the third power supply to control the on / off state of the third power supply.

[0023] By adopting the above technical solution, the third power source supplies power to the second heating wire, and the controller controls the on and off of the third power source, which can flexibly control the working state of the second heating wire and further precisely regulate the generation of hot air.

[0024] Optionally, the detection probe is communicatively connected to the controller, which receives the detection signal emitted by the detection probe and processes the detection signal to control the start and stop of the first power supply, the second power supply, and the third power supply.

[0025] By adopting the above technical solution, the controller controls the on / off state of the second heating wire to supply power, which can flexibly control the working state of the second heating wire to meet different heat requirements and improve the multiple functional modes of the smoke gun in conjunction with other components.

[0026] In summary, this application includes at least one of the following beneficial technical effects: The oil in the oil chamber flows into the oil guide cotton through the oil outlet. After being heated and vaporized by the first heating wire, it is carried out by the airflow from the air pump to form smoke, making the smoke production more stable and uniform. The amount of smoke generated can be controlled according to the air supply of the air pump and the heating power of the first heating wire. The first and second oil retaining rings on the outer periphery of the casing prevent oil from leaking between the casing and the end cap. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the flue gas generating component and the gas supply component in the embodiments of this application; Figure 3 yes Figure 2 Enlarged view of section A; Figure 4 This is a schematic diagram of the structure of the control component in the embodiments of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. End cap; 11. Detection end; 12. Connection end; 13. Installation chamber; 131. First chamber; 132. Second chamber; 14. Air duct; 15. Smoke outlet; 2. Smoke generating assembly; 21. Sleeve; 211. First oil baffle ring; 212. Second oil baffle ring; 213. Oil chamber; 214. Oil outlet; 215. Upper external threaded ring; 216. Lower external threaded ring; 22. Oil guide cotton; 23. First heating wire; 24. Oil pipe; 3. Air supply assembly; 31. Installation sleeve; 32. Air pump; 321. Air outlet port; 4. Detection probe; 5. Exhaust assembly; 51. Exhaust pipe; 52. Exhaust head; 53. Internal threaded ring; 54. Second heating wire; 6. Control assembly; 61. Controller; 62. First power supply; 63. Second power supply; 64. Third power supply; 7. Handle. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0030] This application discloses a smoking gun. (Refer to...) Figure 1 and Figure 2 The smoking gun includes an end cap 1, a smoke generating assembly 2, and a gas supply assembly 3. The end cap 1 is cylindrical in shape parallel to a first direction. In the first direction, one end of the end cap 1 is a detection end 11, and the other end is a connecting end 12. A detection probe 4 is fixedly connected to the end wall of the detection end 11 of the end cap 1, and the detection probe 4 can be embedded in the end cap 1. The end cap 1 has an inwardly recessed mounting chamber 13 at the connecting end 12 along the first direction. The mounting chamber 13 is stepped and includes a first chamber 131 near the detection end 11 and a second chamber 132 near the connecting end 12. The first chamber 131 and the second chamber 132 are coaxial cylinders, and the inner diameter of the first chamber 131 is smaller than the inner diameter of the second chamber 132.

[0031] Reference Figure 1 and Figure 2 The air supply assembly 3 includes a mounting sleeve 31 fixedly connected to the connecting end 12 of the end cap 1 and an air pump 32 fixedly connected inside the mounting sleeve 31. The mounting sleeve 31 is coaxially fixedly connected to the end cap 1. The air outlet 321 of the air pump 32 faces the connecting end 12 of the end cap 1, and the air pump 32 blows air in a first direction toward the detection end 11 of the end cap 1. A hollow handle is coaxially fixedly connected to the end of the mounting sleeve 31 away from the end cap 1. One end of the handle is open and communicates with the mounting sleeve 31, while the other end is closed.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The flue gas generating assembly 2 includes a cylindrical sleeve 21 coaxially fixedly connected to the installation chamber 13, an oil-guiding cotton 22 coaxially fixedly connected to the inside of the sleeve 21, and a first heating wire 23 located inside the oil-guiding cotton 22 and fixedly connected to the sleeve 21. One end of the sleeve 21 is located in the second chamber 132 of the mounting chamber 13, and the other end extends into the first chamber 131. An air duct 14 is formed between the end wall of the sleeve 21 near the detection end 11 and the end wall of the mounting chamber 13. A smoke outlet 15 communicating with the air duct 14 is opened on the periphery of the end cover 1. A threaded upper ring 215 is coaxially fixedly connected to the outer peripheral wall of the sleeve 21 located within the first chamber 131. The threaded upper ring is threadedly connected to the first chamber 131 of the sleeve 21 to fix the sleeve 21 and the end cap 1. A first oil-blocking ring 211 and a second oil-blocking ring 212 are coaxially fixedly connected to the outer peripheral wall of the sleeve 21. The first oil-blocking ring 211 is located on the side of the second oil-blocking ring 212 closer to the detection end 11, and the first oil-blocking ring 211 abuts against the stepped surface between the first chamber 131 and the second chamber 132 to prevent oil from flowing out of the sleeve 21. Leakage occurs between end cap 1 and end cap 1; an oil cavity 213 is formed between the outer wall of sleeve 21 and the inner wall of mounting chamber 13. In the first direction, both ends of the oil cavity 213 are sealed by a first oil-blocking ring 211 and a second oil-blocking ring 212; an oil outlet hole 214 is provided through the sleeve wall to connect the oil cavity 213 and the inner side of sleeve 21; the air outlet port 321 of air pump 32 is inserted into the oil-guiding cotton 22; in order to fix the heating wire, a connecting rod passing through the oil-guiding cotton 22 can also be provided between the heating wire and the inner wall of sleeve 21 to fix the heating wire on sleeve 21. A lower external threaded ring 216 is coaxially fixedly connected to the outer peripheral wall of the end of sleeve 21 away from detection end 11. The lower external threaded ring 216 is inserted into mounting sleeve 31 and threadedly connected to mounting sleeve 31.

[0033] The working principle of the smoke generating component 2 is as follows: oil in the oil chamber 213 flows into the oil-guiding cotton 22 through the oil outlet 214 and permeates the entire oil-guiding cotton 22. After heating the heating wire located in the oil-guiding cotton 22, the oil in the oil-guiding cotton 22 is heated and vaporized by the first heating wire 23. The airflow delivered by the air pump 32 carries the vaporized oil out, thereby forming smoke, which is discharged through the air duct 14 and the smoke outlet 15. This design makes the smoke generation more stable and uniform, and can control the amount of smoke generated according to the air supply of the air pump 32 and the heating power of the first heating wire 23.

[0034] Reference Figure 2 In some embodiments of this application, a transparent annular oil pipe 24 is also included. In the first direction, one end of the oil pipe 24 is coaxially and fixedly connected to the connecting end 12 of the end cap 1, and the other end is coaxially and fixedly connected to the mounting sleeve 31. The fixed connection can be a plug-in connection, and a sealing ring can be provided between it and the end cap 1 and the mounting sleeve 31 for sealing. The connection method between the annular oil pipe 24 and the end cap 1 and the mounting sleeve 31 will not be elaborated further in this disclosure, as long as it is feasible. The oil cavity 213 is formed by the inner wall of the mounting chamber 13, the inner wall of the oil pipe 24, the first oil baffle ring 211, and the second oil baffle ring 212. The transparent oil pipe 24 facilitates observation of the remaining oil level in the oil cavity 213, allowing for timely replenishment.

[0035] Reference Figure 1 and Figure 2In some embodiments of this application, an exhaust assembly 5 is also included. The exhaust assembly 5 includes an exhaust pipe 51 fixedly connected to the end cover 1. The exhaust pipe 51 is perpendicular to the first direction. One end of the exhaust pipe 51 is connected to the air duct 14 through the smoke outlet 15, and the other end extends to the outside of the end cover 1. A second heating wire 54 is fixedly connected inside the exhaust pipe 51. When the second heating wire 54 is heated alone and the air pump 32 is activated, hot air can be blown out. The exhaust assembly 5 also includes an exhaust head 52 coaxially fixedly connected to the end of the exhaust pipe 51 away from the end cover 1. The outer diameter of the exhaust head 52 is smaller than the outer diameter of the exhaust pipe 51. An internal threaded ring threaded to the outside of the exhaust pipe 51 can be fixedly provided at one end of the exhaust head 52 to fix the exhaust head 52 to the exhaust pipe 51.

[0036] Reference Figure 2 In some embodiments of this application, a control component 6 is also included. The control component 6 includes a controller 61 fixedly connected to the mounting sleeve 31, a first power supply 62 communicatively connected to the controller 61, a second power supply 63 fixed to the mounting sleeve 31 and communicatively connected to the controller 61, and a third power supply 64 fixed to the mounting sleeve 31 and communicatively connected to the controller 61. The first power supply 62 supplies power to the air pump 32, and the controller 61 sends start / stop signals to the first power supply 62 to control its on / off state. The second power supply 63 supplies power to the first heating wire 23, and the controller 61 sends start / stop signals to the second power supply 63 to control its on / off state. The third power supply 64 supplies power to the second heating wire 54, and the controller 61 sends start / stop signals to the third power supply 64 to control its on / off state. The three power supplies supply power to the air pump 32, the first heating wire 23, and the second heating wire 54 respectively, allowing the three devices to start and stop independently, thus forming three operating modes. First working mode: Air pump 32 and first heating wire 23 start simultaneously to spray smoke; The second working mode: the air pump 32 and the second heating wire 54 are started at the same time to spray hot air; The third working mode: Air pump 32 with a separate air cylinder blows air outwards; With three different working modes, it can adapt to different application scenarios.

[0037] The detection probe 4 is communicatively connected to the controller 61. The controller 61 receives the detection signal emitted by the detection probe 4, processes the detection signal, and controls the start and stop of the first power supply 62, the second power supply 63, and the third power supply 64. In some embodiments, the controller 61 can also be connected to an external start / stop button to adjust the three operating modes.

[0038] The implementation principle of a smoking gun according to an embodiment of this application is as follows: oil in the oil chamber 213 flows into the oil-guiding cotton 22 through the oil outlet 214 and permeates the entire oil-guiding cotton 22. After heating the heating wire located in the oil-guiding cotton 22, the oil in the oil-guiding cotton 22 is heated and vaporized by the first heating wire 23. The airflow delivered by the air pump 32 carries the vaporized oil out, thereby forming smoke, which is discharged through the air duct 14 and the smoke outlet 15. This design makes the smoke generation more stable and uniform, and can control the amount of smoke generated according to the air supply of the air pump 32 and the heating power of the first heating wire 23.

[0039] Furthermore, this smoke gun solves the problem of accurately controlling the amount and concentration of smoke generated in traditional smoke guns through the reasonable cooperation of the end cap 1, the air supply component 3, and the smoke generating component 2. The mounting chamber 13 of the end cap 1 provides a stable mounting space for each component. The airflow provided by the air supply component 3 works in conjunction with the smoke generating component 2, allowing the oil to be heated and vaporized within the oil-guiding cotton 22, stably forming smoke and venting it out. This design improves the performance and reliability of the smoke gun, enhances the accuracy of fire detection, and has significant advantages over traditional smoke guns, providing a better tool for fire detection work.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A smoking pipe, characterized in that, It includes an end cap (1), a flue gas generating assembly (2), and a gas supply assembly (3); In the first direction, one end of the end cap (1) is a detection end (11), and the other end is a connection end (12); the end cap (1) has an installation chamber (13) formed by recessing the connection end (12) in the first direction; The gas supply assembly (3) includes: A mounting sleeve (31) is fixedly connected to the connecting end (12) of the end cap (1); And an air pump (32) fixedly connected inside the mounting sleeve (31), the air outlet (321) of the air pump (32) facing the connection end (12) of the end cap (1); The flue gas generating assembly (2) includes: A cylindrical sleeve (21) is coaxially fixedly connected to the mounting chamber (13); an air duct (14) is formed between the end wall of the sleeve (21) near the detection end (11) and the end wall of the mounting chamber (13); a smoke outlet (15) communicating with the air duct (14) is opened on the peripheral wall of the end cap (1); a first oil baffle ring (211) and a second oil baffle ring (212) are coaxially fixedly connected to the outer peripheral wall of the sleeve (21); the first oil baffle ring (211) and the second oil baffle ring (212) are coaxially fixedly connected to the outer peripheral wall of the sleeve (21). 11) Located on the side of the second oil baffle ring (212) near the detection end (11), an oil cavity (213) is formed between the outer wall of the sleeve (21) and the inner wall of the mounting chamber (13). In the first direction, both ends of the oil cavity (213) are blocked by the first oil baffle ring (211) and the second oil baffle ring (212). The sleeve (21) has an oil outlet hole (214) through which the oil cavity (213) and the inner side of the sleeve (21) are connected. An oil-guiding cotton (22) is coaxially fixedly connected to the inner side of the sleeve (21), and the air outlet (321) of the air pump (32) is inserted into the oil-guiding cotton (22); And a first heating wire (23) fixedly connected inside the oil-conducting cotton (22).

2. The smoking gun according to claim 1, characterized in that, It also includes a transparent annular oil pipe (24), in the first direction, one end of the oil pipe (24) is coaxially fixedly connected to the connecting end (12) of the end cap (1), and the other end is coaxially fixedly connected to the mounting sleeve (31); The oil cavity (213) is formed by the inner wall of the installation chamber (13), the inner wall of the oil pipe (24), the first oil baffle ring (211), and the second oil baffle ring (212).

3. A smoking gun according to claim 1, characterized in that, It also includes an exhaust assembly (5), which includes: An exhaust pipe (51) is fixedly connected to the end cap (1). The exhaust pipe (51) is perpendicular to the first direction. One end of the exhaust pipe (51) is connected to the air duct (14), and the other end extends to the outside of the end cap (1).

4. A smoking gun according to claim 3, characterized in that, The exhaust assembly (5) also includes: An exhaust head (52) is coaxially fixedly connected to the end of the exhaust pipe (51) away from the end cap (1), and the outer diameter of the exhaust head (52) is smaller than the outer diameter of the exhaust pipe (51).

5. A smoking gun according to claim 3, characterized in that, A second heating wire (54) is fixedly connected inside the exhaust pipe (51).

6. A smoking gun according to claim 5, characterized in that, It also includes a detection probe (4), which is fixedly connected to the detection end (11) end wall of the end cap (1).

7. A smoking gun according to claim 6, characterized in that, It also includes a control component (6), which includes: A controller (61) is fixedly connected to the mounting sleeve (31); A first power supply (62) is communicatively connected to the controller (61). The first power supply (62) is used to supply power to the air pump (32). The controller (61) is used to send a start / stop signal to the first power supply (62) to control the on / off state of the first power supply (62).

8. A smoking gun according to claim 7, characterized in that, The control component (6) further includes a second power supply (63) fixedly connected to the mounting sleeve (31). The second power supply (63) is used to supply power to the first heating wire (23), and the controller (61) is used to send a start / stop signal to the second power supply (63) to control the on / off state of the second power supply (63).

9. A smoking gun according to claim 8, characterized in that, The control component (6) further includes a third power supply (64) fixedly connected to the mounting sleeve (31), the third power supply (64) being used to supply power to the second heating wire (54), and the controller (61) being used to send a start / stop signal to the third power supply (64) to control the on / off state of the third power supply (64).

10. A smoking gun according to claim 9, characterized in that, The detection probe (4) is communicatively connected to the controller (61). The controller (61) is used to receive the detection signal emitted by the detection probe (4) and process the detection signal to control the start and stop of the first power supply (62), the second power supply (63) and the third power supply (64).