A mobile long-range fog cannon

By adopting a conical variable diameter pipe structure in the mobile long-range fog cannon, the problem of airflow diffusion is solved, and the range and droplet carrying capacity are increased under the same fan power, while reducing energy consumption and water waste.

CN224422329UActive Publication Date: 2026-06-30ANHUI HENGNIAN INTELLIGENT ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI HENGNIAN INTELLIGENT ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing mobile long-range fogging devices suffer from severe airflow diffusion in their airflow channel design, leading to kinetic energy attenuation. This necessitates increasing fan power to extend the range, thereby increasing equipment energy consumption and weight, and also results in low water mist utilization efficiency.

Method used

It adopts a front-end dynamically adjustable conical variable diameter tube structure, and realizes the tube diameter change through elastic sleeve and multiple sets of elastic support rods to form a high kinetic energy gathering airflow, reduce airflow diffusion loss, and improve range and droplet carrying capacity.

Benefits of technology

It significantly reduces equipment energy consumption and weight under the same fan power, improves water resource utilization, enhances dust suppression coverage, and reduces water mist settling midway.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of fogging technology, specifically a mobile long-range fogging device, including a mounting cylinder and a nozzle fixedly mounted on the mounting cylinder. A mounting base is fixedly mounted on the mounting cylinder, and an adjustment mechanism for adjusting the pipe diameter is provided inside the mounting cylinder. A protective mechanism for protecting the nozzle is provided inside the mounting base. The adjustment mechanism includes a mounting ring fixedly mounted inside the mounting cylinder and a mounting base. Six sets of annularly distributed elastic support rods are provided between the mounting ring and the mounting base, and elastic sleeves are sleeved on the six sets of elastic support rods. Through the dynamically adjustable conical variable diameter pipe structure at the front end, i.e., the elastic sleeves, in conjunction with the multiple sets of elastic support rods, the pipe diameter can be continuously changed, allowing the high-speed airflow at the blower outlet to be fully accelerated in the contraction section, forming a high-energy concentrated airflow.
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Description

Technical Field

[0001] This utility model relates to the field of fogging technology, specifically a mobile long-range fogging device. Background Technology

[0002] Mobile long-range fog cannons (also known as fog cannons or dust suppression fog cannons) are a highly efficient environmental pollution control device widely used in construction sites, mines, stockpiles, demolition sites, ports, power plants, and other locations for dust suppression, dust reduction, cooling, deodorization, and disinfection. Their core working principle typically involves a water pump pressurizing water in a tank, which is then transported through pipelines to nozzles where it is atomized into a fine water mist. A powerful blower then generates a strong airflow that propels the water mist to a target area at a considerable distance.

[0003] Existing equipment often employs simple straight-cylinder or expansion structures in the airflow channel design between the blower outlet and the atomizing nozzle area. This design fails to effectively constrain and guide high-speed airflow, causing it to rapidly diffuse and severely attenuate its kinetic energy after leaving the blower. To achieve a longer range, it is usually necessary to increase the blower power, which not only significantly increases the equipment's energy consumption, size, weight, and operating costs, but also contradicts the requirements for equipment mobility. Simultaneously, the rapid attenuation of airflow velocity weakens its ability to carry atomized water droplets, causing some water mist to settle before reaching the target area, reducing water resource utilization efficiency and overall dust suppression effectiveness. Furthermore, the mist cannon consumes a large amount of water during operation. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a mobile long-range fogging device, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a mobile remote mist sprayer, comprising an installation cylinder and a nozzle fixedly installed on the installation cylinder, wherein an installation base is fixedly installed on the installation cylinder, an adjustment mechanism for adjusting the pipe diameter is provided inside the installation cylinder, and a protective mechanism for protecting the nozzle is provided inside the installation base;

[0008] The adjustment mechanism includes a mounting ring fixedly installed inside the mounting cylinder and a fixed seat. Six sets of annularly distributed elastic support rods are provided between the mounting ring and the fixed seat. Elastic sleeves are sleeved on the six sets of elastic support rods, and the elastic sleeves are fixedly connected to the six sets of elastic support rods respectively. The adjustment mechanism also includes six sets of annularly distributed adjustment frames located inside the fixed seat. The six sets of adjustment frames are correspondingly arranged with the elastic support rods. The two ends of the elastic support rods are rotatably connected to the corresponding adjustment frames and the mounting ring through rotating shafts. The mounting seat is provided with multiple sets of annularly distributed closed plates.

[0009] Preferably, the fixed base is equipped with six sets of circularly distributed guide rails, each of which is correspondingly arranged with one of the six sets of adjustment frames, and the six sets of adjustment frames are slidably connected to the corresponding guide rails.

[0010] Preferably, each of the six sets of adjustment frames is fixedly equipped with an adjustment rod, and an adjustment disc is rotatably installed in the fixed seat. The adjustment disc has six sets of annularly distributed adjustment grooves, which are respectively set with the six sets of adjustment frames. The adjustment rod is slidably connected to the corresponding adjustment disc through the corresponding adjustment groove. A rack is slidably installed in the fixed seat, a cylinder is fixedly installed in the fixed seat, and a circulating air pump is fixedly installed in the installation cylinder.

[0011] Preferably, a first toothed ring is sleeved on the adjusting disc, a rack is meshed with the first toothed ring, and the rack is fixedly connected to the output end of the cylinder piston rod.

[0012] Preferably, the outlet of the cylinder is connected to the inlet of the circulating air pump through a purification pipeline, and the outlet of the circulating air pump is connected to the inlet of the cylinder through a high-pressure air pipe.

[0013] Preferably, the protective mechanism includes a rotating frame rotatably mounted in the mounting base, a second toothed ring sleeved on the rotating frame, and multiple sets of closing plates rotatably connected to the mounting base via mounting shafts.

[0014] Preferably, multiple sets of mounting shafts are distributed in a ring around the rotating frame, and each set of mounting shafts is fitted with a gear, which meshes with the corresponding second gear ring.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a mobile long-range fogging device, which has the following advantages:

[0017] The front-end dynamically adjustable conical variable diameter pipe structure, i.e., the elastic sleeve, works in conjunction with multiple sets of elastic support rods to achieve continuous pipe diameter variation. This allows the high-speed airflow at the blower outlet to be fully accelerated in the contraction section, forming a high-kinetic-energy concentrated airflow. Compared with the traditional straight-tube expansion structure, airflow diffusion loss is reduced, and the range is increased under the same blower power. This solves the dilemma of relying on increasing blower power to increase the range, significantly reducing equipment energy consumption, weight, and operating costs. The droplet carrying capacity is enhanced, i.e., the constrained high-speed airflow improves the carrying efficiency of atomized water droplets, reducing water mist sedimentation midway, improving water resource utilization, and expanding dust suppression coverage. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram showing the structural separation of the mounting cylinder and the mounting base of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the mounting cylinder of this utility model;

[0022] Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the protective mechanism of this utility model.

[0024] In the diagram: 1. Mounting cylinder; 2. Nozzle; 3. Mounting base; 4. Adjustment mechanism; 401. Mounting ring; 402. Elastic support rod; 403. Fixed base; 404. Guide rail; 405. Adjustment frame; 406. Adjustment rod; 407. Adjustment disc; 408. Adjustment groove; 409. First gear ring; 410. Rack; 411. Cylinder; 412. Circulating air pump; 413. Elastic sleeve; 5. Protective mechanism; 501. Rotating frame; 502. Second gear ring; 503. Closing plate; 504. Mounting shaft; 505. Gear. Detailed Implementation

[0025] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0026] Figures 1-5In one embodiment of this utility model, a mobile long-range mist sprayer includes a mounting cylinder 1 and a nozzle 2 fixedly mounted on the mounting cylinder 1. A mounting base 3 is fixedly mounted on the mounting cylinder 1. An adjustment mechanism 4 for adjusting the pipe diameter is provided inside the mounting cylinder 1, and a protective mechanism 5 for protecting the nozzle 2 is provided inside the mounting base 3. The adjustment mechanism 4 includes a mounting ring 401 fixedly mounted inside the mounting cylinder 1 and a fixed base 403. Six sets of annularly distributed elastic support rods 402 are provided between the mounting ring 401 and the fixed base 403. Elastic sleeves 413 are sleeved on the six sets of elastic support rods 402, and the elastic sleeves 413 are fixedly connected to the six sets of elastic support rods 402 respectively. The adjustment mechanism 4 also includes six sets of annularly distributed adjustment frames 405 located inside the fixed base 403, and the six sets of adjustment frames 405 are aligned with the elastic support rods 402. The system should be configured such that both ends of the elastic support rod 402 are rotatably connected to the corresponding adjusting frame 405 and mounting ring 401 via rotating shafts. The mounting base 3 is equipped with multiple sets of annularly distributed closed plates 503. Through the dynamically adjustable conical variable diameter pipe structure at the front end, i.e., the elastic sleeve 413, in conjunction with the multiple sets of elastic support rods 402, the pipe diameter can be continuously changed, so that the high-speed airflow at the blower outlet can be fully accelerated in the contraction section, forming a high-kinetic-energy concentrated airflow. Compared with the traditional straight-tube expansion structure, the airflow diffusion loss is reduced, and the range is increased under the same blower power. This solves the dilemma of relying on increasing the blower power to increase the range, significantly reducing equipment energy consumption, weight and operating costs. The droplet carrying capacity is enhanced, i.e. the high-speed airflow under constraint carries atomized water droplets more efficiently, reducing water mist sedimentation in the middle, improving water resource utilization, and expanding dust suppression coverage.

[0027] In this embodiment, reference Figure 4As shown, six sets of annularly distributed guide rails 404 are fixedly installed inside the fixed base 403. The six sets of guide rails 404 are respectively configured to correspond to six sets of adjusting frames 405, and the six sets of adjusting frames 405 are slidably connected to their respective guide rails 404. Adjusting rods 406 are fixedly installed on each of the six sets of adjusting frames 405. An adjusting disc 407 is rotatably installed inside the fixed base 403, and the adjusting disc 407 has six sets of annularly distributed adjusting grooves 408. The six sets of adjusting grooves 408 are respectively configured to correspond to the six sets of adjusting frames 405. The adjusting rods 406 are connected to the guide rails 404 through their respective adjusting grooves 408. The corresponding adjusting disc 407 is slidably connected. A rack 410 is slidably installed in the fixed base 403. A cylinder 411 is fixedly installed in the fixed base 403. A circulating air pump 412 is fixedly installed in the mounting cylinder 1. A first gear ring 409 is sleeved on the adjusting disc 407. The rack 410 is meshed with the first gear ring 409. The rack 410 is fixedly connected to the output end of the piston rod of the cylinder 411. The air outlet of the cylinder 411 is connected to the air inlet of the circulating air pump 412 through a purification pipeline. The air outlet of the circulating air pump 412 is connected to the air inlet of the cylinder 411 through a high-pressure air pipe. The high-speed airflow generated by the blower enters the front adjustable reducer pipe, which consists of a flexible pipe wall and multiple sets of elastic support rods. The pneumatic actuator receives a control signal and drives the cylinder 411 to slide the rack 410, which, in conjunction with the first gear ring 409, causes the adjusting disc 407 to rotate. The multiple sets of annularly distributed arc-shaped adjusting grooves 408 in the adjusting disc 407 rotate accordingly, forcing the adjusting rod 406 to drive the corresponding adjusting frame 405 to slide radially in the corresponding guide rail 404. This causes the multiple sets of elastic support rods to retract inward synchronously. The flexible pipe wall of the elastic sleeve 413 follows the shape of the elastic support rod 402. The modified conical channel reduces the cross-sectional area of ​​the airflow, and the contraction section forces the airflow to accelerate to 1.5-2 times its original speed, significantly suppressing turbulent diffusion and forming a high-density concentrated airflow jet. Compared with the traditional straight-tube expansion structure, the airflow diffusion loss is reduced, and the range is increased under the same fan power. This solves the dilemma of relying on increasing the fan power to increase the range, significantly reducing equipment energy consumption, weight and operating costs. The droplet carrying capacity is enhanced, that is, the high-speed airflow under constraint improves the carrying efficiency of atomized water droplets, reduces water mist midway sedimentation, improves water resource utilization, and expands dust suppression coverage.

[0028] In this embodiment, reference Figure 5As shown, the protective mechanism 5 includes a rotating frame 501 rotatably installed in the mounting base 3. A second toothed ring 502 is sleeved on the rotating frame 501. Multiple sets of closing plates 503 are rotatably connected to the mounting base 3 through mounting shafts 504. Multiple sets of mounting shafts 504 are distributed in a ring around the rotating frame 501, and gears 505 are sleeved on each of the multiple sets of mounting shafts 504. The multiple sets of gears 505 are respectively meshed with the corresponding second toothed rings 502. When the motor in the mounting base 3 drives the mounting shafts 504 to rotate, the multiple sets of gears 505 and the second toothed rings 502 work together to make the multiple sets of closing plates 503 rotate synchronously and close inward, closing the mounting base 3. When the sprayer is not in use, it isolates the nozzle 2 from the outside world, reducing the accumulation of dust on the nozzle 2, which may cause the nozzle 2 to become blocked or damaged by collision.

[0029] In this embodiment, the high-speed airflow generated by the blower enters the front adjustable diameter pipe, which is composed of a flexible pipe wall and multiple sets of elastic support rods. The pneumatic actuator receives the control signal and drives the cylinder 411 to drive the rack 410 to slide. In conjunction with the first toothed ring 409, the adjusting disc 407 rotates. The multiple sets of annularly distributed arc-shaped adjusting grooves 408 in the adjusting disc 407 rotate accordingly, forcing the adjusting rod 406 to drive the corresponding adjusting frame 405 to slide radially in the corresponding guide rail 404. This causes the multiple sets of elastic support rods to contract inward synchronously. The flexible pipe wall of the elastic sleeve 413 forms a gradually narrowing conical channel with the deformation of the elastic support rod 402. The cross-sectional area of ​​the airflow is reduced, and the contraction section forces the airflow to accelerate to 1.5-2 times its original speed, significantly suppressing turbulent diffusion and forming a high-density cluster. Compared to the traditional straight-tube expansion structure, the airflow jet reduces airflow diffusion loss and increases the range under the same fan power, solving the dilemma of relying on increasing fan power to increase the range. It significantly reduces equipment energy consumption, weight and operating costs. The droplet carrying capacity is enhanced, that is, the high-speed airflow under constraint improves the carrying efficiency of atomized water droplets, reduces water mist settling in the middle, improves water resource utilization, and expands dust suppression coverage. When the motor in the mounting base 3 drives the mounting shaft 504 to rotate, it works with multiple sets of gears 505 and the second gear ring 502 to make multiple sets of closing plates 503 rotate synchronously and close inward, closing the mounting base 3. When the fogger is not in use, it isolates the nozzle 2 from the outside world, reducing the accumulation of dust on the nozzle 2, which may cause nozzle 2 blockage or damage caused by collision.

[0030] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0031] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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 mobile long-range fogging device, comprising a mounting cylinder (1) and a nozzle (2) fixedly mounted on the mounting cylinder (1), characterized in that: The mounting cylinder (1) is fixedly mounted with a mounting base (3), and the mounting cylinder (1) is provided with an adjustment mechanism (4) for adjusting the pipe diameter, and the mounting base (3) is provided with a protective mechanism (5) for protecting the nozzle (2). The adjustment mechanism (4) includes a mounting ring (401) fixedly installed in the mounting cylinder (1) and a fixed seat (403). There are six sets of annularly distributed elastic support rods (402) between the mounting ring (401) and the fixed seat (403). Elastic sleeves (413) are sleeved on the six sets of elastic support rods (402), and the elastic sleeves (413) are fixedly connected to the six sets of elastic support rods (402) respectively. The adjustment mechanism (4) also includes six sets of annularly distributed adjustment frames (405) located in the fixed seat (403). The six sets of adjustment frames (405) are correspondingly arranged with the elastic support rods (402). The two ends of the elastic support rods (402) are rotatably connected to the corresponding adjustment frames (405) and the mounting ring (401) through rotating shafts. There are multiple sets of annularly distributed closing plates (503) in the mounting seat (3).

2. A mobile long-range fogging device according to claim 1, characterized in that: The fixed base (403) is fixedly installed with six sets of circularly distributed guide rails (404). The six sets of guide rails (404) are respectively set with six sets of adjustment frames (405) and the six sets of adjustment frames (405) are slidably connected to the corresponding guide rails (404).

3. A mobile long-range fogging device according to claim 1, characterized in that: Each of the six sets of adjustment frames (405) is fixedly equipped with an adjustment rod (406), and an adjustment plate (407) is rotatably installed in the fixed seat (403). The adjustment plate (407) is provided with six sets of annularly distributed adjustment grooves (408). The six sets of adjustment grooves (408) are respectively set with the six sets of adjustment frames (405). The adjustment rod (406) is slidably connected to the corresponding adjustment plate (407) through the corresponding adjustment groove (408). A rack (410) is slidably installed in the fixed seat (403). A cylinder (411) is fixedly installed in the fixed seat (403). A circulating air pump (412) is fixedly installed in the mounting cylinder (1).

4. A mobile long-range fogging device according to claim 3, characterized in that: The adjusting disc (407) is fitted with a first toothed ring (409), and the rack (410) is meshed with the first toothed ring (409). The rack (410) is fixedly connected to the output end of the piston rod of the cylinder (411).

5. A mobile long-range fogging device according to claim 3, characterized in that: The outlet of the cylinder (411) is connected to the inlet of the circulating air pump (412) through a purification pipeline, and the outlet of the circulating air pump (412) is connected to the inlet of the cylinder (411) through a high-pressure air pipe.

6. A mobile long-range fogging device according to claim 1, characterized in that: The protective mechanism (5) includes a rotating frame (501) rotatably installed in the mounting base (3), a second toothed ring (502) is sleeved on the rotating frame (501), and multiple sets of closing plates (503) are rotatably connected to the mounting base (3) through the mounting shaft (504).

7. A mobile long-range fogging device according to claim 6, characterized in that: Multiple sets of mounting shafts (504) are distributed in a ring around the rotating frame (501), and gears (505) are sleeved on each set of mounting shafts (504). The gears (505) are respectively meshed with the corresponding second toothed rings (502).