A portable smoke generating device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2026-08-11
AI Technical Summary
[0007]尽管此类系统可实现一定程度的智能控制,但整体结构复杂、系统庞大、维护要求高,加工与组装成本较高,也增加了故障风险
[0021]1、结构紧凑、同轴集成
Smart Images

Figure CN224613175U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stage effects equipment technology, specifically to a portable smoke generator. Background Technology
[0002] Smoke generators, as a visual effects device, are widely used in stage performances, film and television shooting, light shows, themed events and other scenarios. Their main function is to heat liquid smoke oil to vaporize it and produce high-density smoke, thereby creating a dreamlike, three-dimensional and immersive visual environment.
[0003] Currently available smoke generators still have several shortcomings in terms of structure and use, mainly including:
[0004] First, many existing products employ a multi-module distributed structure, with components such as air pumps, oil tanks, heating chambers, and power circuits arranged separately, relying on wires or external connection devices for combined use. This structure results in large equipment size and loosely packed components, making them inconvenient to transport and cumbersome to set up, and unsuitable for rapid deployment in environments such as performance venues where equipment size and operation time are critical.
[0005] Secondly, most smoke devices rely on external AC power to operate and cannot operate independently in situations without mains power, such as outdoor stages, mobile performance vehicles, and mobile flash mob devices, which greatly limits the flexibility and immediacy of their use.
[0006] In addition, some existing smoke generators rely on the coordinated operation of multiple functional modules in their structure. For example, they may have an independent oil pump to drive the oil flow, a complex electronic control system to control the heating process, sensor modules (such as temperature detection and oil level monitoring) to achieve protection functions, and structures such as spiral tubes and condensation channels to guide the smoke out.
[0007] While such systems can achieve a certain degree of intelligent control, their overall structure is complex, the system is large, maintenance requirements are high, processing and assembly costs are high, and the risk of failure is also increased. For stage performances that require flexible deployment and efficient arrangement, existing products still have considerable room for optimization in terms of size, cost, portability, and ease of operation.
[0008] Meanwhile, some existing devices lack clear isolation in the design of oil and gas paths, which can easily lead to problems such as oil backflow into the gas path or dry burning of the heater, affecting the stability of smoke output and even posing safety hazards. Utility Model Content
[0009] To address the technical problems existing in the prior art, the purpose of this utility model is to provide a portable smoke generator with a compact structure, simplified control, independent power supply, and suitability for mobile stage effects manufacturing, so as to better meet the current stage performance industry's comprehensive needs for portability, efficiency, and application adaptability.
[0010] The objective of this utility model is achieved through the following technical solution: a portable smoke generator, comprising a housing and an air pump, an oil tank, and a heating component housed therein. The housing has a smoke outlet connecting the interior of the housing to the outside, and the air outlet of the air pump corresponds to the smoke outlet. The liquid outlet of the oil tank corresponds to the air outlet, and the heating component is disposed at the liquid outlet of the oil tank. The heating component heats the oil to vaporize it, and the vaporized oil is propelled by the gas output by the air pump and transported from the smoke outlet to the outside to form smoke.
[0011] Furthermore, the liquid guide port is located at the top of the oil tank, and the top of the oil tank is also provided with an annular baffle; the air pump is located below the oil tank, and the oil tank is hollow to avoid the air outlet passage of the air pump, so that the top of the oil tank corresponds to the air outlet of the air outlet passage, the annular baffle surrounds the air outlet of the air outlet passage, and the liquid guide port is located outside the annular baffle.
[0012] Specifically, the liquid guide port is a plurality of through holes, the through holes are located at a preset height, and the oil level in the oil tank reaches or exceeds this height at a certain point.
[0013] Furthermore, the heating assembly includes a heating base and a heating wire. The heating base is a cover structure, which includes a lower enclosure wall and an upper perforated plate. The heating base is located above the top of the oil tank, and the enclosure wall covers the air outlet of the air outlet passage. The heating wire is suspended downward from the perforated plate inside the heating base.
[0014] Furthermore, the air pump is equipped with a one-way valve, which is located on the air outlet passage and controls the air pump to output air in one direction only.
[0015] Specifically, the one-way valve is a mechanical one-way check valve.
[0016] Furthermore, it also includes a battery disposed within the housing; the battery is electrically connected to the air pump and the heating assembly, providing power to both.
[0017] Specifically, the battery is a rechargeable lithium battery pack; the battery is also connected to a control circuit for controlling the operating sequence of the heating component and the air pump.
[0018] Specifically, the air pump, oil tank, and heating components are coaxially arranged along the longitudinal axis of the device, forming a compact integrated structure.
[0019] Specifically, the outer casing is provided with a viewing window for observing the oil level; the viewing window is made of transparent plastic material, located on the side wall of the outer casing, and corresponds to the oil level area of the oil tank.
[0020] Compared with the prior art, the present invention has at least the following beneficial effects:
[0021] 1. Compact structure and coaxial integration
[0022] This invention achieves integrated structure and optimized space design by arranging the air pump, oil tank and heating components coaxially along the longitudinal axis, significantly reducing the overall volume and making it suitable for applications such as stage performances where equipment size and wiring simplicity are critical.
[0023] 2. Remove complex components to simplify the system.
[0024] This invention eliminates the need for auxiliary components such as oil pumps, electrical control circuits, spiral smoke guide pipes, and condensation channels found in traditional smoke generators. The overall structure is more refined, effectively reducing manufacturing and assembly costs, improving system stability, and avoiding the risk of control failure caused by the collaboration of multiple components.
[0025] 3. Built-in battery, independent power supply
[0026] Equipped with a rechargeable battery as its power source, it can operate without an external AC power source, making it particularly suitable for temporary or mobile deployment scenarios such as mobile performances, flash mobs, and outdoor events in environments without mains power, greatly enhancing the applicability and deployment flexibility of the equipment.
[0027] 4. Oil-gas separation design for safer operation.
[0028] A baffle structure is installed between the oil tank and the heating base to effectively prevent oil from flowing back into the air path, avoid oil and gas mixing from interfering with the air pump or heating effect, ensure stable and continuous smoke output, and improve work reliability and service life.
[0029] 5. Visual window for easy maintenance
[0030] The casing has a transparent window, allowing users to visually observe the oil level, preventing dry burning or abnormal heating, thus enhancing operational safety and making maintenance more convenient.
[0031] 6. Through-hole structure for rapid mist removal
[0032] The top of the oil tank is equipped with a through-hole liquid guide port, which allows the oil to be smoothly discharged to the outside after it vaporizes into smoke. No additional exhaust pipe is required, the structure is simpler, the reaction speed is faster, and it meets the requirements of instantaneous smoke output for stage performances.
[0033] 7. Lightweight and easy to carry and deploy.
[0034] The compact design of the outer shell and internal layout makes the whole machine lightweight and small in size, which can be used by hand or on the back, greatly facilitating the quick setup and temporary scheduling of stage staff before the performance, making it highly adaptable. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the structure of this utility model.
[0036] Figure 2 This is a longitudinal sectional view of the present invention.
[0037] Figure 3 This is a cross-sectional view of the heating component, oil tank, and air pump of this utility model.
[0038] Figure 4 This is a schematic diagram of the internal structure of this utility model.
[0039] Figure 5 This is an exploded view of the internal structure of this utility model.
[0040] In the diagram: 10-outer shell; 11-body; 110-viewing window; 12-smoke outlet; 20-air pump; 23-air outlet passage; 24-one-way valve; 30-oil tank; 35-annular flange; 36-through hole; 47-heating base; 48-heating wire. Detailed Implementation
[0041] To facilitate understanding of this utility model, the technical solutions and advantages of the utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Any mechanisms or methods not elaborated in this utility model can be referred to in the prior art. The specific structures and features of this utility model are illustrated below by way of example and should not constitute any limitation on this utility model. Furthermore, any technical feature mentioned below (including implicit or disclosed features), as well as any technical feature directly shown or implied in the figures, can be arbitrarily combined or deleted among these technical features to form more other embodiments that may not be directly or indirectly mentioned in this utility model. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0042] like Figure 1-5 As shown, the portable smoke generator of this embodiment includes a housing 10, an air pump 20, an oil tank 30, a heating component, and a battery, wherein the air pump 20, the oil tank 30, the heating component, and the battery are all disposed inside the housing 10.
[0043] The outer casing 10 includes a body 11 and a smoke outlet 12. Specifically, the body 11 is a square box with an inner cavity, and the smoke outlet 12 is a tubular structure disposed on one side of the body 11, connecting the inner cavity of the body 11 with the outside.
[0044] The air pump 20 is housed within the inner cavity of the body 11 of the outer casing 10. Specifically, the air pump 20 is located at the bottom of the outer casing 10, and correspondingly, the smoke outlet 12 is located at the top of the outer casing 10. The air pump 20 has a vertically upward air outlet passage 23, which corresponds to the smoke outlet 12. A one-way valve 24 is provided on the air outlet passage 23 and controls the air pump 20 to output air in one direction, preventing backflow. Preferably, in this embodiment, the one-way valve 24 is a mechanical one-way check valve.
[0045] The oil tank 30 is housed within the inner cavity of the body 11 of the outer casing 10. Specifically, the oil tank 30 is positioned above the air pump 20, and is hollow to avoid the air outlet passage 23 of the air pump 20, so that the top of the oil tank 30 corresponds to the air outlet of the air outlet passage 23. The top of the oil tank 30 is provided with an annular baffle 35 and multiple through holes 36. The through holes 36 are liquid guide ports, connecting to the inner cavity of the oil tank 30. The through holes 36 are located at a preset height, and the oil in the oil tank 30 is drawn upward by a cotton strip to bring the liquid level to or above this height. The annular baffle 35 surrounds the air outlet of the air outlet passage 23, and the through holes 36 are located outside the annular baffle 35, which prevents oil from flowing back into the air outlet passage 23.
[0046] The heating assembly includes a heating base 47 and a heating wire 48, used to heat and vaporize the oil in the oil tank 30. The heating assembly is housed within the body 11 of the outer casing 10. Specifically, the heating base 47 is a cover structure, including a lower enclosure wall and an upper perforated plate. The heating base 47 is positioned above the top of the oil tank 30, with the enclosure wall covering the air outlet of the air passage 23. A notch is provided at the bottom of the enclosure wall, allowing the interior of the heating base 47 to communicate with the through hole 36 of the oil tank 30. The heating wire 48 is suspended downwards from the perforated plate within the heating base 47. The heating base 47 corresponds to the upper smoke outlet 12 and the lower air outlet of the air passage 23.
[0047] The battery is housed within the body 11 of the outer casing 10. In this embodiment, the battery is preferably a rechargeable lithium battery pack. The battery is electrically connected to the air pump 20 and the heating wire 48, providing power to both and enabling portable independent use in this embodiment without an external power source. The battery is also connected to a control circuit to control the operating sequence of the heating wire 48 and the air pump 20.
[0048] The air pump 20, oil tank 30 and heating components are arranged coaxially along the longitudinal axis of the device, forming a compact integrated structure.
[0049] The oil level in the oil tank 30 is set to not exceed 2 / 3 of the tank's height, and a viewing window 110 is provided on the outer casing 10 for observing the oil level. The viewing window 110 is made of transparent plastic material, located on the side wall of the outer casing 10, and corresponds to the oil level area of the oil tank 30. Furthermore, in this embodiment, a liquid level sensor can also be provided to monitor changes in the oil level in the tank, issuing an alarm when the set maximum liquid level is exceeded. The liquid level sensor can be a sensor using existing technology; implementation is permitted as long as the beneficial effects of this invention are achieved.
[0050] In this embodiment, the power switch, located on the outer casing 10, is activated. The power supply controls the operation of the air pump 20 and the heating wire 48. The air pump 20 outputs gas to the air outlet passage 23 through the one-way valve 24. The heating wire 48 is in close contact with the heating base 47, forming a heat conduction unit. When energized, the heating wire 48 heats the heating base 47. A cotton swab is hung on the through hole 36, which serves as a liquid guide. The lower end of the cotton swab is immersed in the oil in the oil tank 30. The cotton swab absorbs the oil and is transported upwards, allowing the heating base 47 to uniformly heat the surrounding oil. The oil vaporizes, and the vaporized oil, along with the gas output from the air pump 20, drives the smoke out of the smoke outlet 12.
[0051] The outer shell in this embodiment is square; in other embodiments, it is cylindrical or columnar.
[0052] Compared with existing technologies, this embodiment achieves integrated structure and optimized space design, significantly reducing the overall volume and making it suitable for applications such as stage performances where equipment size and wiring simplicity are critical. The device eliminates the need for auxiliary components such as oil pumps, electrical control circuits, spiral smoke guides, and condensation channels found in traditional smoke generators, resulting in a more refined overall structure. This effectively reduces manufacturing and assembly costs, improves system stability, and avoids the risk of control failures caused by the collaboration of multiple components.
[0053] The above embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of protection of the present utility model. For those skilled in the art, it will be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A portable smoke generator, characterized in that, The device includes a housing and an air pump, an oil tank, and a heating component housed therein. The housing has a smoke outlet connecting the interior of the housing to the outside, and the air outlet of the air pump corresponds to the smoke outlet. The oil tank stores oil, and the oil inlet corresponds to the air outlet. The heating component is located at the oil inlet of the oil tank. The heating component heats the oil to vaporize it, and the vaporized oil is propelled by the gas output from the air pump and transported to the outside through the smoke outlet to form smoke.
2. The portable smoke generator as described in claim 1, characterized in that, The liquid guide port is located at the top of the oil tank, and the top of the oil tank is also provided with an annular baffle; the air pump is located below the oil tank, and the oil tank is hollow to avoid the air outlet passage of the air pump, so that the top of the oil tank corresponds to the air outlet of the air outlet passage, the annular baffle surrounds the air outlet of the air outlet passage, and the liquid guide port is located outside the annular baffle.
3. The portable smoke generator as described in claim 2, characterized in that, The liquid guide port consists of multiple through holes, which are located at a preset height, and the oil level in the oil tank reaches or exceeds this height.
4. The portable smoke generator as described in claim 3, characterized in that, The heating assembly includes a heating base and a heating wire. The heating base is a cover structure, which includes a lower enclosure wall and an upper perforated plate. The heating base is located above the top of the oil tank, and the enclosure wall covers the air outlet of the air outlet passage. The heating wire is suspended downward from the perforated plate inside the heating base.
5. The portable smoke generator as described in claim 1, characterized in that, The air pump is equipped with a one-way valve, which is located on the air outlet passage and controls the air pump to output air in one direction only.
6. The portable smoke generator as described in claim 5, characterized in that, The one-way valve is a mechanical one-way check valve.
7. The portable smoke generator as described in claim 1, characterized in that, It also includes a battery, which is disposed inside the housing; the battery is electrically connected to the air pump and the heating assembly, providing power to both.
8. The portable smoke generator as described in claim 7, characterized in that, The battery is a rechargeable lithium battery pack; the battery is also connected to a control circuit to control the working sequence of the heating component and the air pump.
9. The portable smoke generator as described in claim 1, characterized in that, The air pump, oil tank, and heating components are coaxially arranged along the longitudinal axis of the device, forming a compact integrated structure.
10. The portable smoke generator as claimed in claim 1, characterized in that, The outer casing is provided with a viewing window for observing the oil level; the viewing window is made of transparent plastic material, located on the side wall of the outer casing, and corresponds to the oil level area of the oil tank.