Adjustable fog cannon

Abstract

This invention belongs to the field of environmental protection and dust suppression technology, and discloses an adjustable fog cannon. The technical solution of this invention includes a base and a fog cannon tube. The bottom mounting seat of the fog cannon tube is rotatably connected to the base, and one end of an electric telescopic rod is rotatably connected to the base. The other end of the electric telescopic rod is rotatably connected to the fog cannon tube. With this device, the air outlet area of ​​the fog cannon tube can be steplessly adjusted according to the upward angle of the fog cannon tube. Without increasing the power of the first motor, the air outlet speed is increased, so that when the device sprays upward, the water mist can be shot further, which can improve the dust suppression effect. At the same time, when the fog cannon vehicle is traveling on the road, the water mist can be blocked and obstructed by controlling the rise of the water-absorbing cloth, reducing the discomfort of pedestrians. After the obstruction is removed, the water-absorbing cloth can be automatically wrung out, so that when the water-absorbing cloth is raised again, it can still play a good role in blocking the water mist.

Description

Technical Field

[0001] This invention belongs to the field of environmental protection and dust suppression technology, specifically relating to an adjustable fog cannon. Background Technology

[0002] Fog cannons are often used to control air pollution such as dust and sandstorms, purifying the air by settling particulate matter. Existing fog cannons consist of a cannon barrel, motor, fan, high-pressure nozzle, and rotating platform. The motor drives the fan to rotate, propelling water mist from the high-pressure nozzle into the air. The rotating platform controls the direction of the spray by rotating the cannon barrel. However, when spraying at high altitudes, existing fog cannons often require increased motor power and speed to produce a stronger fan and propel the water mist higher. As the elevation angle decreases, the motor power and speed are gradually reduced to decrease the fan speed. Furthermore, when spraying in urban areas, frequent switching of the motor is necessary when approaching pedestrians to avoid disturbing them. Repeated switching and adjusting the motor's output power affects its lifespan and reduces the fog cannon's operating time. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, the present invention aims to provide an adjustable fog cannon to solve the problem that the repeated switching and power adjustment of the fog cannon motor affects the motor life.

[0004] The technical solution adopted by this adjustable fog cannon to solve its technical problems is as follows:

[0005] An adjustable fog cannon is provided, including a base and a fog cannon barrel. A bottom mounting seat for the fog cannon barrel is rotatably connected to the base. One end of an electric telescopic rod is rotatably connected to the base, and the other end of the electric telescopic rod is rotatably connected to the fog cannon barrel. A first motor is fixedly installed inside the fog cannon barrel via a bracket, and a fan is fixedly installed on the first motor. An annular water pipe is fixedly installed inside the fog cannon barrel, and several high-pressure nozzles are fixedly installed on the inner ring of the annular water pipe. Several first baffles are provided on one side of the fog cannon barrel's air outlet, and a second baffle is provided between each two adjacent first baffles. Both the first and second baffles are rotatably mounted on the fog cannon barrel via a rotating shaft. Limiting grooves are respectively formed on the first baffles, and limiting sliders are fixedly installed on both sides of the second baffles, respectively, and the limiting sliders are respectively fitted into the corresponding limiting grooves. An L-shaped rod is provided inside the fog cannon barrel. The vertical end of the L-shaped rod is fixedly connected to the inner wall of the fog cannon barrel, and a sliding ring is fitted around the outer circumference of the horizontal rod of the L-shaped rod. Several connecting rods are rotatably connected to the outer circumference of the sliding ring. One end of the connecting rod is rotatably connected to the corresponding first baffle. A through groove is opened on the bottom side of the fog cannon, and a pull rod is installed in the through groove. One end of the pull rod is rotatably connected to the outer circumference of the slip ring, and the other end of the pull rod is rotatably installed on the base. The front and rear sides of the outer circumference of the fog cannon are respectively fixedly installed with second motors. Support rods are respectively fixedly installed on the output ends of the second motors. Gears are respectively mounted on the support rods with bearings. The middle part of the slide rail is respectively fixedly connected to the gears. One end of the first spring is respectively fixedly connected to both ends of the slide rail. The slider is respectively fixedly installed on the other end of the first spring. The slider is respectively fitted onto the corresponding slide rail. A water-absorbing cloth is provided between the two slide rails. The four corners of the water-absorbing cloth are respectively fixedly connected to the corresponding slider. A first arc-shaped guide rail is fixedly installed on the front side of the top surface of the base. A second arc-shaped guide rail is fixedly installed on the rear side of the top surface of the base. The outer arc surface of the first arc-shaped guide rail has a toothed groove and meshes with the corresponding gear. The inner arc surface of the second arc-shaped guide rail has a toothed groove and meshes with the corresponding gear.

[0006] Furthermore, the base is fixedly mounted on the electric rotating gimbal.

[0007] Furthermore, a filter screen is fixedly installed at the air inlet of the fog cannon.

[0008] Furthermore, the pull rod includes an upper rod and a lower rod. The lower part of the outer periphery of the upper rod and the upper part of the outer periphery of the lower rod are respectively provided with external threads. An internal threaded tube is provided between the upper rod and the lower rod, and the upper rod and the lower rod are connected through the internal threaded tube.

[0009] Furthermore, a second spring is fitted around the outer periphery of the L-shaped horizontal bar, with one end of the second spring fixedly connected to the L-shaped bar and the other end of the second spring fixedly connected to the slip ring.

[0010] Furthermore, a water collection tank is fixedly installed on the top surface of the base.

[0011] Furthermore, mounting slots are respectively opened on both sides of the inner wall of the through groove, and a movable plate is provided in the mounting slot. The movable plate has an opening in the middle, and the pull rod is located in the opening of the movable plate. The movable plate can move within the two mounting slots.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. An adjustable fog cannon, as exemplified by this invention, is used by placing a base on a fog cannon vehicle. A high-pressure water pump on the fog cannon vehicle pumps water from its water tank into a ring-shaped water pipe, from which water mist is sprayed through a high-pressure nozzle. The first motor is activated, driving a fan to rotate, which in turn blows the water mist through the fog cannon barrel, adsorbing dust and haze in the air to achieve a fogging and dust suppression effect. When the fog cannon vehicle is traveling on the road and detects people ahead, a second motor is activated, which in turn drives the corresponding support rods, gears, etc. The slide rail, first spring, slider, and absorbent cloth rotate and rise. Gears roll on the corresponding first and second arc-shaped guide rails, causing the absorbent cloth to unfold and shield the front of the fog cannon. The absorbent cloth absorbs the blown water mist, reducing the impact on pedestrians. When the fog cannon vehicle moves away from pedestrians, the second motor rotates in the opposite direction, causing the gears to roll on the corresponding first and second arc-shaped guide rails. At this time, the two gears rotate in opposite directions, wringing the absorbent cloth dry. To ensure the absorbent cloth can still absorb water when reused, and for high-altitude dust suppression spraying, the electric telescopic rod extends, pushing the mist cannon upwards. During this upward movement, the pull rod moves the slip ring backwards along the horizontal bar of the L-shaped rod, which in turn moves the corresponding first and second baffles via the connecting rod. The first and second baffles close inwards, reducing the air outlet area of ​​the mist cannon and increasing the air velocity. This increased air velocity allows the water mist to be projected to a higher position. This device enables... The air outlet area of ​​the fog cannon is infinitely adjustable according to the upward angle of the fog cannon. Without increasing the power of the first motor, the air outlet speed is increased, allowing the water mist to be sprayed further when the device sprays upward, thus improving the dust suppression effect. At the same time, when the fog cannon vehicle is traveling on the road, the water mist can be blocked and obstructed by controlling the rise of the water-absorbing cloth, reducing discomfort to pedestrians. After the obstruction is removed, the water-absorbing cloth can be automatically wrung out, so that when the water-absorbing cloth is raised again, it can still provide a good water mist blocking effect.

[0014] 2. An adjustable fog cannon, as exemplified by the present invention, can rotate the fog cannon tube horizontally via an electric rotating gimbal, allowing the device to easily adjust the orientation of the fog cannon tube according to requirements.

[0015] 3. An adjustable fog cannon, as exemplified by the present invention, can filter the air through a filter screen to prevent large suspended particles from entering the fog cannon tube and affecting the rotation of the fan.

[0016] 4. An adjustable fog cannon according to the present invention can connect the upper rod and the lower rod through an internal threaded tube. When it is necessary to separate the upper rod and the lower rod, the internal threaded tube is rotated so that the internal threaded tube is completely screwed into the upper rod, and the separation can be completed. This ensures that the fog cannon tube will not drive the first baffle and the second baffle to rotate through the pull rod during the rotation process, and can keep the air outlet of the fog cannon tube with a fixed air outlet area when it is raised.

[0017] 5. An adjustable fog cannon according to an example of the present invention, wherein a second spring is used to generate a thrust on the slip ring when the upper rod and the lower rod are disconnected, thereby preventing the first baffle and the second baffle from closing.

[0018] 6. An adjustable fog cannon, as exemplified by the present invention, can collect water wrung from the absorbent cloth through a water collection tank, and recycle the water for subsequent reuse.

[0019] 7. An adjustable fog cannon according to the present invention can seal the through-slot with a movable plate to reduce the amount of water mist sprayed out of the through-slot during use. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 yes Figure 1 View from direction A;

[0023] Figure 3 yes Figure 1 View B.

[0024] In the diagram: 1. Base; 2. Fog cannon; 3. First motor; 4. Fan; 5. Annular water pipe; 6. First baffle; 7. Second baffle; 8. Limiting groove; 9. Limiting slider; 10. L-shaped rod; 11. Slip ring; 12. Connecting rod; 13. Through groove; 14. Pull rod; 141. Upper rod; 142. Lower rod; 143. Internally threaded pipe; 15. Second motor; 16. Support rod; 17. Gear; 18. Slide rail; 19. First spring; 20. Slider; 21. Absorbent cloth; 22. First arc-shaped guide rail; 23. Second arc-shaped guide rail; 24. Electric rotating gimbal; 25. Second spring; 26. Water collection tank; 27. Movable plate; 28. Mounting slot; 29. ​​Electric telescopic rod; 30. High-pressure nozzle. Detailed Implementation

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] like Figure 1 , Figure 2 and Figure 3As shown, an adjustable fog cannon includes a base 1 and a fog cannon 2. A bottom mounting base for the fog cannon 2 is rotatably connected to the base 1. One end of an electric telescopic rod 29 is rotatably connected to the base 1, and the other end of the electric telescopic rod 29 is rotatably connected to the fog cannon 2. A first motor 3 is fixedly installed inside the fog cannon 2 via a bracket. A fan 4 is fixedly installed on the first motor 3. An annular water pipe 5 is fixedly installed inside the fog cannon 2 and is connected to a high-pressure water pump. Several high-pressure nozzles 30 are fixedly installed on the inner ring of the annular water pipe 5. Several first baffles 6 are provided on one side of the air outlet of the fog cannon 2. Two adjacent first baffles... A second baffle 7 is provided between the baffles 6. Both the first baffle 6 and the second baffle 7 are rotatably mounted on the fog cannon 2 via a rotating shaft. A limiting groove 8 is provided on the first baffle 6. Limiting sliders 9 are fixedly installed on both sides of the second baffle 7. The limiting sliders 9 are respectively fitted into the corresponding limiting grooves 8. An L-shaped rod 10 is provided inside the fog cannon 2. The end of the vertical rod of the L-shaped rod 10 is fixedly connected to the inner wall of the fog cannon 2. A sliding ring 11 is fitted around the outer periphery of the horizontal rod of the L-shaped rod 10. The outer periphery of the sliding ring 11 is rotatably connected to one end of several connecting rods 12. The other end of the connecting rods 12 is respectively connected to the corresponding first baffle 6. The fog cannon 2 has a through groove 13 on its bottom side, and a pull rod 14 is installed in the through groove 13. One end of the pull rod 14 is rotatably connected to the outer circumference of the slip ring 11, and the other end of the pull rod 14 is rotatably mounted on the base 1. The front and rear sides of the outer circumference of the fog cannon 2 are respectively fixedly installed with a second motor 15. The output end of the second motor 15 is respectively fixedly installed with a support rod 16. Gears 17 are respectively mounted on the support rod 16 with bearings. The middle part of the slide rail 18 is respectively fixedly connected to the gears 17. The two ends of the slide rail 18 are respectively fixedly connected to one end of the first spring 19. The other end of the first spring 19 is respectively fixedly installed with a slider 20. The sliders 20 are respectively installed on the corresponding slide rails 18. A water-absorbing cloth 21 is provided between the two slide rails 18. The four corners of the water-absorbing cloth 21 are respectively fixedly connected to the corresponding sliders 20. The first arc-shaped guide rail 22 is fixedly installed on the front side of the top surface of the base 1, and the second arc-shaped guide rail 23 is fixedly installed on the rear side of the top surface of the base 1. The centers of the circles containing the first arc-shaped guide rail 22 and the second arc-shaped guide rail 23 are respectively located on the corresponding second motors 15. The outer arc surface of the first arc-shaped guide rail 22 has a toothed groove and meshes with the corresponding gear 17. The inner arc surface of the second arc-shaped guide rail 23 has a toothed groove and meshes with the corresponding gear 17.In use, the base 1 is placed on the fog cannon vehicle, and the high-pressure water pump on the fog cannon vehicle pumps water from the water tank into the annular water pipe 5. Water mist is sprayed out through the high-pressure nozzle 30. The first motor 3 is started, and the rotation of the first motor 3 drives the fan 4 to rotate. The rotation of the fan 4 blows the water mist out through the fog cannon 2, adsorbing dust and haze in the air and achieving a fogging and dust suppression effect. When the fog cannon vehicle is traveling on the road and detects people ahead, the second motor 15 is started. The rotation of the second motor 15 drives the corresponding support rod 16, gear 17, slide rail 18, first spring 19, and slider 20 respectively. As the absorbent cloth 21 rotates and rises, the gears 17 roll on the corresponding first arc-shaped guide rail 22 and second arc-shaped guide rail 23, causing the absorbent cloth 21 to unfold and block the front of the fog cannon 2. The absorbent cloth absorbs the blown water mist, reducing the impact of the device on pedestrians on the street. When the fog cannon vehicle moves away from pedestrians, the second motor 15 is controlled to rotate in the opposite direction, driving the gears 17 to roll on the corresponding first arc-shaped guide rail 22 and second arc-shaped guide rail 23. At this time, the two gears 17 rotate in opposite directions, which can twist the absorbent cloth 21, rotating and wringing it dry. To ensure that the absorbent cloth 21 can still absorb water when reused, and when high-altitude dust suppression spraying is required, the electric telescopic rod 29 is extended to push the fog cannon 2 upward. During the upward movement, the pull rod 14 pulls the slip ring 11 to move backward relative to the crossbar of the L-shaped rod 10, which in turn drives the corresponding first baffle 6 and second baffle 7 to move via the connecting rod 12. The first baffle 6 and second baffle 7 close inward, reducing the air outlet area of ​​the fog cannon 2 and thus increasing the air velocity at the outlet. The increased air velocity allows the water mist to be sprayed to a higher position. The device can steplessly adjust the air outlet area of ​​the fog cannon 2 according to the upward angle of the fog cannon 2. Without increasing the power of the first motor 3, it increases the air outlet speed, so that when the device sprays upward, the water mist can be shot further, which can improve the dust suppression effect. At the same time, when the fog cannon vehicle is traveling on the road, the water mist can be blocked and obstructed by controlling the water absorption cloth 21 to reduce the discomfort of pedestrians. After the obstruction is removed, the water absorption cloth 21 can be automatically wrung out, so that when the water absorption cloth 21 is raised again, it can still play a good role in blocking the water mist.

[0028] like Figure 1 As shown, in a further preferred embodiment, the base 1 is fixedly mounted on the electric rotating gimbal 24. The electric rotating gimbal 24 can drive the fog cannon 2 to rotate horizontally, allowing the device to easily adjust the orientation of the fog cannon 2 as needed.

[0029] like Figure 1 and Figure 2As shown, in a further preferred embodiment, a filter screen is fixedly installed at the air inlet of the fog cannon 2. The filter screen filters the air, preventing large suspended particles from entering the fog cannon 2 and affecting the rotation of the fan 4.

[0030] like Figure 1 As shown, in a further preferred embodiment, the pull rod 14 includes an upper rod 141 and a lower rod 142. External threads are respectively formed on the lower part of the outer periphery of the upper rod 141 and the upper part of the outer periphery of the lower rod 142. An internally threaded tube 143 is provided between the upper rod 141 and the lower rod 142, connecting them via the internally threaded tube 143. The internally threaded tube 143 connects the upper rod 141 and the lower rod 142. When it is necessary to separate the upper rod 141 and the lower rod 142, the internally threaded tube 143 is rotated until it is fully screwed into the upper rod 141, thus completing the separation. This ensures that the fog cannon 2 does not cause the first baffle 6 and the second baffle 7 to rotate during rotation via the pull rod 14, and that the air outlet of the fog cannon 2 maintains a fixed air outlet area when it is raised.

[0031] like Figure 1 As shown, in a further preferred embodiment, a second spring 25 is fitted around the outer periphery of the horizontal bar of the L-shaped rod 10. One end of the second spring 25 is fixedly connected to the L-shaped rod 10, and the other end of the second spring 25 is fixedly connected to the slip ring 11. Through the second spring 25, when the upper rod 141 and the lower rod 142 are disconnected, the second spring 25 generates a pushing force on the slip ring 11, preventing the first baffle 6 and the second baffle 7 from closing.

[0032] like Figure 1 As shown, in a further preferred embodiment, a water collection tank 26 is fixedly installed on the top surface of the base 1. The water collection tank 26 allows water wrung from the absorbent cloth 23 to be collected and recycled for later reuse.

[0033] like Figure 1 As shown, in a further preferred embodiment, mounting slots 28 are respectively formed on both sides of the inner wall of the through groove 13. A movable plate 27 is provided within each mounting slot 28, with an opening in the center of the movable plate 27. The pull rod 14 is located within the opening of the movable plate 27, allowing the movable plate 27 to move within the two mounting slots 28. The movable plate 27 can seal the through groove 13, reducing the amount of water mist sprayed from it during use.

[0034] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0035] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this invention, the other technical features will not be described in detail here.

Claims

1. An adjustable fog cannon, comprising a base (1) and a fog cannon barrel (2), characterized in that, The base (1) is rotatably connected to the bottom mounting seat of the fog cannon (2). One end of the electric telescopic rod (29) is rotatably connected to the base (1). The other end of the electric telescopic rod (29) is rotatably connected to the fog cannon (2). The first motor (3) is fixedly installed inside the fog cannon (2) by a bracket. The fan (4) is fixedly installed on the first motor (3). The annular water pipe (5) is fixedly installed inside the fog cannon (2). Several high-pressure nozzles (30) are fixedly installed on the inner ring of the annular water pipe (5). Several first baffles (6) are provided on one side of the air outlet of the fog cannon (2). A second baffle (7) is provided between two adjacent first baffles (6). The first baffle (6) and the second baffle (7) are rotatably mounted on the fog cannon (2) via a rotating shaft. The first baffle (6) is provided with a limiting groove (8). The two sides of the second baffle (7) are fixedly installed with limiting sliders (9). The limiting sliders (9) are respectively installed in the corresponding limiting grooves (8). The fog cannon (2) is provided with an L-shaped rod (10). The end of the vertical rod of the L-shaped rod (10) is fixedly connected to the inner wall of the fog cannon (2). The outer periphery of the horizontal rod of the L-shaped rod (10) is fitted with a slip ring (11). The outer periphery of the slip ring (11) is rotatably connected to one end of several connecting rods (12). The other end of the connecting rods (12) is respectively connected to the corresponding first baffle. (6) Rotary connection: A through groove (13) is opened on the bottom side of the fog cannon (2). A pull rod (14) is provided in the through groove (13). One end of the pull rod (14) is rotatably connected to the outer periphery of the slip ring (11). The other end of the pull rod (14) is rotatably mounted on the base (1). The front and rear sides of the outer periphery of the fog cannon (2) are respectively fixedly installed with a second motor (15). The output end of the second motor (15) is respectively fixedly installed with a support rod (16). Gears (17) are respectively mounted on the support rod (16). The middle part of the slide rail (18) is respectively fixedly connected to the gears (17). The two ends of the slide rail (18) are respectively fixedly connected with the first spring (19). At one end, the other end of the first spring (19) is fixedly installed with a slider (20). The slider (20) is installed on the corresponding slide rail (18). A water-absorbing cloth (21) is provided between the two slide rails (18). The four corners of the water-absorbing cloth (21) are fixedly connected to the corresponding slider (20). The front side of the top surface of the base (1) is fixedly installed with a first arc-shaped guide rail (22). The rear side of the top surface of the base (1) is fixedly installed with a second arc-shaped guide rail (23). The outer arc surface of the first arc-shaped guide rail (22) is provided with a toothed groove and meshes with the corresponding gear (17). The inner arc surface of the second arc-shaped guide rail (23) is provided with a toothed groove and meshes with the corresponding gear (17).

2. An adjustable fog cannon according to claim 1, characterized in that, The base (1) is fixedly installed on the electric rotating gimbal (24).

3. An adjustable fog cannon according to claim 1, characterized in that, A filter screen is fixedly installed at the air inlet of the fog cannon (2).

4. An adjustable fog cannon according to claim 1, characterized in that, The pull rod (14) includes an upper rod (141) and a lower rod (142). The lower part of the outer periphery of the upper rod (141) and the upper part of the outer periphery of the lower rod (142) are respectively provided with external threads. An internal threaded tube (143) is provided between the upper rod (141) and the lower rod (142), and the upper rod (141) and the lower rod (142) are connected through the internal threaded tube (143).

5. An adjustable fog cannon according to claim 1, characterized in that, The outer periphery of the L-shaped rod (10) is fitted with a second spring (25). One end of the second spring (25) is fixedly connected to the L-shaped rod (10), and the other end of the second spring (25) is fixedly connected to the slip ring (11).

6. An adjustable fog cannon according to claim 1, characterized in that, A water collection tank (26) is fixedly installed on the top surface of the base (1).

7. An adjustable fog cannon according to claim 1, characterized in that, The inner wall of the through groove (13) is provided with mounting grooves (28) on both sides. A movable plate (27) is provided in the mounting groove (28). The middle part of the movable plate (27) is open. The pull rod (14) is located in the opening of the movable plate (27). The movable plate (27) can move in the two mounting grooves (28).

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