A fog cannon

Abstract

This invention relates to the field of disinfection equipment and discloses a fog cannon, including a blower duct. One end of the blower duct is connected to a frustum-shaped air guide shroud, which is formed by splicing several air guide vanes. One side of each air guide vane is hinged to the end of the blower duct. Several spray heads are disposed inside the blower duct. The blower duct also includes an air outlet adjustment component and a spray angle adjustment component. The air outlet adjustment component simultaneously rotates all the air guide vanes to increase or decrease the air outlet of the air guide shroud. The spray angle adjustment component is kinetically connected to the air outlet adjustment component, and all spray heads are mounted on the spray angle adjustment component. The spray angle adjustment component ensures that the spray heads and air guide vanes rotate synchronously. This fog cannon can adjust the air outlet size, spray angle, and spray range according to the operating scenario, improving disinfection effect, reducing consumption and cost, and lowering environmental pollution and health risks.

Description

Technical Field

[0001] This invention relates to the field of disinfection equipment, specifically to a fog cannon. Background Technology

[0002] Disinfection processes are becoming increasingly important in public health and disease control, prevention of emerging pathogens and infectious diseases, food safety and hygiene requirements, healthcare environments, public places and transportation. However, existing sprayers have a relatively traditional structure, resulting in uneven spray coverage, inability to adjust the spray range, and droplets that are too large or too small.

[0003] Consuming too much disinfectant increases costs and may have negative environmental impacts; it can even lead to environmental pollution and health risks. Summary of the Invention

[0004] The purpose of this invention is to provide a fog cannon that solves the problems of existing sprayers having a relatively traditional structure, resulting in uneven spray coverage, inability to adjust the spray range, and excessively large or small droplets.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is: a fog cannon, including a wind duct, one end of which is connected to a frustum-shaped air guide shroud, the air guide shroud being formed by splicing together several air guide plates, one side of each air guide plate being hinged to the end of the wind duct, and several spray heads being provided inside the wind duct;

[0006] The air duct is also equipped with an air outlet adjustment component and a spray angle adjustment component. The air outlet adjustment component is used to simultaneously drive all the air guide vanes to rotate so that the air outlet of the air guide shroud can be enlarged or reduced.

[0007] The spray angle adjustment component is connected to the air outlet adjustment component. All spray heads are mounted on the spray angle adjustment component, which is used to keep the spray head and the air guide vane rotating synchronously.

[0008] Preferably, a fan is provided at the other end of the air duct, and an annular inner lining is provided along the edge of the fan in the circumferential direction. The inner lining is detachably connected to the side wall of the air duct.

[0009] Preferably, the air outlet adjustment assembly includes a disc disposed inside the air duct, the disc being coaxially arranged with the air duct, and multiple support rods connected to the outer wall of the disc. The end of each support rod away from the disc is installed on the inner wall of the air duct. The disc is provided with a plurality of sliding grooves along the radial direction, one end of each sliding groove penetrating the side wall of the disc. A push rod is slidably connected within the sliding groove, the push rod extending radially along the disc, and a first connecting rod hinged to the end of the push rod located outside the sliding groove. The end of the first connecting rod away from the push rod is hinged to the inner side wall of the air guide plate. The disc is provided with a drive structure for driving all push rods to slide within the corresponding sliding grooves.

[0010] Preferably, the driving structure includes a motor sleeve connected to the lower surface of the disk, a drive motor is provided inside the motor sleeve, a sprocket is provided above the disk, the drive shaft of the drive motor passes through the disk and is connected to the sprocket, the sprocket is provided with a plurality of arc-shaped slots, and a push rod located in the slide groove is provided with a protrusion, the protrusion being inserted into the corresponding arc-shaped slot.

[0011] Preferably, the spray angle adjustment assembly includes an umbrella handle disposed at the bottom of the motor sleeve. A plurality of connecting rods are connected circumferentially to the outer wall of the umbrella handle. The number of connecting rods is the same as the number of push rods. A second connecting rod is hinged to the end of the connecting rod away from the umbrella handle. A third connecting rod is hinged to the end of the second connecting rod away from the connecting rod. The rod portion of the third connecting rod is hinged to a corresponding push rod. A nozzle fixing component for mounting the spray head is provided at the end of the third connecting rod away from the second connecting rod.

[0012] Preferably, the nozzle fixing component is a mounting ring, and the spray head is inserted into the mounting ring.

[0013] Preferably, the ratio of the length of the push rod to the length of the first connecting rod is 5:1.

[0014] Preferably, the ratio of the length of the connecting rod to the length of the second connecting rod and the length of the third connecting rod is 2:2:5.

[0015] Preferably, each spray head is located below the inner middle of the corresponding air guide plate, and the tilt angle of each spray head is consistent with the tilt angle of the corresponding air guide plate.

[0016] The beneficial effects of this invention are mainly reflected in:

[0017] 1. The fog cannon of the present invention can adjust the size of the air outlet, the spray angle and the spray range of the sprayer according to the operation scenario, thereby improving the disinfection effect, reducing consumption and cost, and reducing environmental pollution and health risks.

[0018] 2. The combination of the air outlet adjustment component and the spray angle adjustment component of the present invention enables the spray head and the air guide plate to rotate synchronously. This allows the adjustment of the air outlet size of the sprayer and the spray angle adjustment of the spray head to be synchronized, which is beneficial to adjust the fog cannon to the optimal matching state. At the same time, it can prevent the mist droplets from adhering to the inner wall of the air guide plate, thus improving its practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a fog cannon provided in one embodiment of the present invention;

[0020] Figure 2 This is a top view of the air guide vanes of a fog cannon in a converging state according to one embodiment of the present invention;

[0021] Figure 3 This is a top view of the air guide vanes of a fog cannon provided in one embodiment of the present invention in an unfolded state;

[0022] Figure 4 This is a three-dimensional schematic diagram of the internal structure of a fog cannon provided in one embodiment of the present invention;

[0023] Figure 5 This is a bottom view of the internal structure of a fog cannon provided in one embodiment of the present invention;

[0024] Figure 6 This is a three-dimensional view of a fog cannon provided in one embodiment of the present invention;

[0025] Figure 7 This is a perspective view of a fog cannon provided in one embodiment of the present invention;

[0026] Figure 8 This is an assembly diagram of the third connecting rod and nozzle fixing component of a fog cannon provided in one embodiment of the present invention;

[0027] Legend: 1. Air duct; 2. Air guide vane; 3. Spray head; 4. Fan; 5. Liner; 6. Disc; 7. Support rod; 8. Slide groove; 9. Push rod; 10. First connecting rod; 11. Motor sleeve; 12. Drive motor; 13. Wheel; 14. Arc-shaped slot; 15. Protrusion; 16. Umbrella handle; 17. Connecting rod; 18. Second connecting rod; 19. Third connecting rod; 20. Spray head fixing component. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Figure 1 This is a schematic diagram of the overall structure of a fog cannon provided in one embodiment of the present invention, as shown below. Figure 1 As shown, this embodiment provides a fog cannon, including a wind duct 1. One end of the wind duct 1 is connected to a frustum-shaped air guide shroud. The air guide shroud is formed by splicing together several air guide plates 2. One side of each air guide plate 2 is hinged to the end of the wind duct 1. Several spray heads 3 are provided inside the wind duct 1.

[0030] The air duct 1 is also equipped with an air outlet adjustment component and a spray angle adjustment component. The air outlet adjustment component is used to simultaneously drive all the air guide vanes 2 to rotate so that the air outlet of the air guide shroud can be enlarged or reduced.

[0031] The spray angle adjustment component is connected to the air outlet adjustment component. All spray heads 3 are mounted on the spray angle adjustment component. The spray angle adjustment component is used to keep the spray head 3 and the air guide plate 2 rotating synchronously.

[0032] In this embodiment, the air guide hood consists of 6 air guide plates 2 and 6 spray heads 3. The number of spray heads 3 corresponds one-to-one with the number of air guide plates 2. When the 6 air guide plates 2 are closed, they form a frustum-shaped structure. In use, the air outlet adjustment component is used to unfold the 6 air guide plates 2, which simultaneously drives the 6 spray heads 3 to rotate. At this time, the air outlet of the air guide hood increases and the spray angle of the spray heads 3 increases, resulting in a larger diffusion range of the blown airflow, which drives the droplets to diffuse freely. Since there are fewer droplet collisions, the droplet size will not increase, thus increasing the disinfection range. When directional disinfection is required, all the air guide plates 2 are simultaneously retracted to form a complete frustum-shaped air guide hood, which increases the outlet air pressure, intensifies droplet collisions, increases the droplet size, and accelerates the speed at which the droplets reach the target.

[0033] The fog cannon in this embodiment can adjust the size of the air outlet, the spray angle, and the spray range according to the operating scenario, thereby improving the disinfection effect, reducing consumption and costs, and lowering environmental pollution and health risks. Secondly, the coordination between the air outlet adjustment component and the spray angle adjustment component allows the spray head 3 and the air guide vane 2 to rotate synchronously. This ensures that the adjustment of the air outlet size and the spray angle of the spray head 3 are synchronized, facilitating the adjustment of the fog cannon to its optimal working state. Simultaneously, it prevents droplets from adhering to the inner wall of the air guide vane 2, enhancing its practicality.

[0034] As a further optimization of this embodiment, a fan 4 is provided at the other end of the air duct 1. The edge of the fan 4 is provided with an annular inner lining 5 along the circumferential direction. The inner lining 5 is detachably connected to the side wall of the air duct 1. After the fan 4 is started, the mist droplets sprayed from the spray head 3 are blown out of the air guide shroud by the airflow generated by the fan 4.

[0035] In this embodiment, the radial cross-section of the inner liner 5 is L-shaped. The inner liner 5 is integrally formed with the fan 4, or the inner liner 5 and the fan 4 are connected by means of bonding, screw connection or other methods. Multiple screw holes are provided on the side wall of the inner liner 5 and the side wall of the air duct 1. By inserting screws into the same screw hole on the side wall of the inner liner 5 and the side wall of the air duct 1, the inner liner 5 can be installed on the inner wall of the air duct 1.

[0036] As a further optimization of this embodiment, the air outlet adjustment assembly includes a disc 6 disposed inside the air duct 1. The disc 6 is coaxially disposed with the air duct 1. Multiple support rods 7 are connected to the outer wall of the disc 6. The end of each support rod 7 away from the disc 6 is installed on the inner wall of the air duct 1. The disc 6 is provided with a plurality of sliding grooves 8 along the radial direction. One end of the sliding groove 8 penetrates the side wall of the disc 6. A push rod 9 is slidably connected in the sliding groove 8. The push rod 9 extends radially along the disc 6. A first connecting rod 10 is hinged to the end of the push rod 9 located outside the sliding groove 8. The end of the first connecting rod 10 away from the push rod 9 is hinged to the inner side wall of the air guide plate 2. The disc 6 is provided with a drive structure for driving all push rods 9 to slide in the corresponding sliding grooves 8.

[0037] In this embodiment, three support rods 7 can be provided, such as... Figure 6 As shown, three support rods 7 are evenly spaced on the circumference of the disc 6 and can be connected to the inner wall of the air duct 1. To facilitate the installation of the support rods 7, the ends of the support rods 7 can also be installed on the inner liner 5. For example, three screw holes are provided at the bottom of the inner liner 5, and the ends of the support rods 7 are screwed into the corresponding screw holes at the bottom of the inner liner 5 to install on the inner liner 5, which facilitates the disassembly and assembly of the air outlet adjustment assembly.

[0038] In this embodiment, the number of grooves 8 corresponds one-to-one with the number of air guide vanes 2, that is, there are also 6 grooves 8. The 6 grooves 8 are evenly distributed along the circumference of the disk 6. When the push rods 9 in all the grooves 8 move outward at the same time, they can support all the air guide vanes 2 at the same time, thereby making the air guide cover unfold. When the push rods 9 in all the grooves 8 move inward at the same time, they can make all the supported air guide vanes 2 retract at the same time. When the push rods 9 in all the grooves 8 move inward to the maximum position, all the air guide vanes 2 retract to form a frustum-shaped structure.

[0039] As a further optimization of this embodiment, the drive structure can employ multiple electric telescopic rods, with the telescopic end of each rod connected to a push rod 9. This allows for simultaneous operation of multiple electric telescopic rods, thereby expanding or retracting the air guide shroud. However, using multiple electric telescopic rods is relatively complex and requires a large installation space. To simplify the drive method, as a further optimization of this embodiment, the drive structure includes a motor sleeve 11 connected to the lower surface of the disc 6. The motor sleeve 11 houses a drive motor 12, and a wheel 13 is positioned above the disc 6. Figure 7 As shown, the drive shaft of the drive motor 12 passes through the disc 6 and is connected to the wheel 13. The wheel 13 is provided with a plurality of arc-shaped slots 14. The push rod 9 located in the slide groove 8 is provided with a protrusion 15. The protrusion 15 is inserted into the corresponding arc-shaped slot 14.

[0040] In use, the drive motor 12 drives the wheel 13 to rotate in both directions. Through the cooperation of the arc-shaped slot 14 and the protrusion 15, during the rotation of the wheel 13, all the push rods 9 can reciprocate simultaneously within the slide groove 8, thereby enabling the six guide vanes 2 to expand or retract simultaneously. Figure 2 and Figure 3 For example, when all the air guide vanes 2 of the air guide cover are in the retracted state, the drive motor 12 is started to drive the wheel 13 to rotate counterclockwise. Since the protrusion 15 can only move in a straight line along the slide groove 8, the wheel 13 can drive all the push rods 9 to move to the outer side of the slide groove 8 at the same time, and can gradually support all the air guide vanes 2 at the same time, so as to realize the unfolding of the air guide vanes 2. When all the air guide vanes 2 of the air guide cover are unfolded, the drive motor 12 is started to drive the wheel 13 to rotate clockwise. Since the protrusion 15 can only move in a straight line along the slide groove 8, the wheel 13 can drive all the push rods 9 to move to the inner side of the slide groove 8 at the same time, and can gradually retract all the supported air guide vanes 2 at the same time.

[0041] In this embodiment, a notch is provided in the middle of the wheel 13, which can cooperate with the drive shaft of the drive motor 12 so that the wheel 13 does not contact the disc 6, thereby reducing the overall frictional resistance of the mechanism.

[0042] In this embodiment, the length ratio of the push rod 9 to the length of the first connecting rod 10 is approximately 5:1, and the ratio of the arc-shaped slot 14 on the wheel 13 to the minimum diameter of the disc 6 and the length of the push rod 9 is approximately 3:7:7. Through the above ratio, the air guide 2 can be made to form a complete frustum-shaped structure when it is gathered, and the air guide 2 is close to being parallel to the air duct 1 when it is unfolded.

[0043] To ensure that the adjustment of the spray nozzle size and the spray angle adjustment of the spray head 3 are synchronized, as a further optimization of this embodiment, such as... Figure 4 and Figure 8 As shown, the spray angle adjustment assembly includes an umbrella handle 16 located at the bottom of the motor sleeve 11. Several connecting rods 17 are connected circumferentially to the outer wall of the umbrella handle 16. The number of connecting rods 17 is the same as the number of push rods 9, with 6 rods in each case. A second connecting rod 18 is hinged to the end of the connecting rod 17 away from the umbrella handle 16. A third connecting rod 19 is hinged to the end of the second connecting rod 18 away from the connecting rod 17. The rod part of the third connecting rod 19 is hinged to the corresponding push rod 9. A nozzle fixing part 20 for installing the spray head 3 is provided at the end of the third connecting rod 19 away from the second connecting rod 18.

[0044] In this embodiment, the motor sleeve 11 is a hollow structure, and the umbrella handle 16 is nested on the motor sleeve 11. The outer cylinder of the motor sleeve 11 provides the umbrella handle 16 with a range for position adjustment and restricts the umbrella handle 16 to prevent it from falling off.

[0045] When using, such as Figure 4 As shown, when push rod 9 moves outward to the side of slide groove 8, the third connecting rod 19 on push rod 9 moves outward simultaneously. At this time, the third connecting rod 19 rotates clockwise around the hinge axis between the third connecting rod 19 and push rod 9. The angle between the spray direction of the spray head 3 at the end of the third connecting rod 19 and the vertical direction gradually decreases, thereby increasing the spray range of each spray head 3. When push rod 9 moves inward to the side of slide groove 8, the third connecting rod 19 on push rod 9 moves inward simultaneously. At this time, the third connecting rod 19 rotates counterclockwise around the hinge axis between the third connecting rod 19 and push rod 9. The angle between the spray direction of the spray head 3 at the end of the third connecting rod 19 and the vertical direction gradually increases, thereby decreasing the spray range of each spray head 3. In this embodiment, the cooperation of push rod 9 with the second connecting rod 18 and the third connecting rod 19 enables the adjustment of the air outlet size of the sprayer and the spray angle adjustment of the spray head 3 to be synchronized. The simplified drive structure reduces the complexity of the fog cannon structure and improves the ease of use of the fog cannon.

[0046] In this embodiment, the length of the connecting rod 17 is approximately 2:2:5 in ratio to the length of the second connecting rod 18 and the length of the third connecting rod 19, and the angle between the connecting rod 17 and the horizontal plane is 15°. Meanwhile, each spray head 3 is located below the inner side of the middle of the corresponding air guide plate 2. Therefore, during use, the tilt angle of each spray head 3 can be consistent with the tilt angle of the corresponding air guide plate 2, which can prevent the droplets sprayed from the spray head 3 from adhering to the inner wall of the air guide plate 2.

[0047] As a further optimization of this embodiment, such as Figure 8 As shown, the nozzle fixing component 20 is a mounting ring, and the spray head 3 is inserted into the mounting ring. For example, the spray head 3 can be fixed in the safety ring by using a locking screw. The nozzle fixing component 20 facilitates the disassembly and assembly of the spray head 3 for maintenance or replacement, further improving the practicality and convenience of the fog cannon.

[0048] In this embodiment, the working principle of the fog cannon is as follows:

[0049] When using a fog cannon, firstly, according to Figure 1 As shown, the fog cannon uses a fan 4 to quickly deliver the mist droplets sprayed from the spray head 3 to the target. The cone surface state of the spray outlet and the nozzle angle can be adjusted as needed. During adjustment, all mechanisms work together synchronously to achieve the best state.

[0050] When the spray range needs to be changed, simply rotate the drive motor 12, which in turn rotates the wheel 13. The protrusion 15 of the push rod 9, which engages with the arc-shaped slot 14 on the wheel 13, is pushed. Since the disc 6 is fixed in place by the inner liner 5 and the push rod 9 is restricted by the sliding groove 8 on the disc 6, the push rod 9 only moves laterally. When the push rod 9 moves, it simultaneously drives the first connecting rod 10, thereby pushing or pulling the air guide 2 to unfold or retract. At the same time, the third connecting rod 19, which is hinged to the push rod 9, rotates, and the spray head 3 changes angle along with the air guide 2. When large-area disinfection is required, the air guide 2 can be unfolded, and the airflow blown by the fan 4 has a larger diffusion range, causing the droplets to diffuse freely. At this time, due to fewer droplet collisions, the droplet size will not increase. When directional disinfection is required, the air guide 2 is retracted to form a complete frustum-shaped structure, which increases the outlet air pressure, intensifies droplet collisions, increases the droplet size, and accelerates the speed at which it reaches the target.

[0051] It should be noted that, for the sake of simplicity, the aforementioned method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, because according to this application, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and units involved are not necessarily essential to this application.

Claims

1. A fog cannon, characterized in that, Includes a wind duct (1), one end of which is connected to a frustum-shaped air guide cover, which is formed by splicing several air guide plates (2). One side of each air guide plate (2) is hinged to the end of the wind duct (1), and several spray heads (3) are provided inside the wind duct (1). The air duct (1) is also provided with an air outlet adjustment component and a spray angle adjustment component. The air outlet adjustment component is used to simultaneously drive all the air guide vanes (2) to rotate so that the air outlet of the air guide hood increases or decreases. The maximum diameter of the air outlet of the air guide hood is smaller than the diameter of the air duct. The spray angle adjustment component is connected to the air outlet adjustment component. All spray heads (3) are mounted on the spray angle adjustment component. The spray angle adjustment component is used to keep the spray head (3) and the air guide (2) rotating synchronously. The tilt angle of each spray head (3) is consistent with the tilt angle of the corresponding air guide (2). The air outlet adjustment assembly includes a disc (6) disposed inside the air duct (1). The disc (6) is coaxially arranged with the air duct (1). The disc (6) has a plurality of radial grooves (8). One end of each groove (8) penetrates the side wall of the disc (6). A push rod (9) is slidably connected inside the groove (8). The push rod (9) extends radially along the disc (6). A first connecting rod (10) is hinged to the end of the push rod (9) located outside the groove (8). The end of the first connecting rod (10) away from the push rod (9) is hinged to... On the inner wall of the air guide plate (2), a motor sleeve (11) is provided on the lower surface of the disc (6), a drive motor (12) is provided inside the motor sleeve (11), a wheel (13) is provided above the disc (6), the drive shaft of the drive motor (12) passes through the disc (6) and is connected to the wheel (13), the wheel (13) is provided with several arc-shaped slots (14), and a protrusion (15) is provided on the push rod (9) located in the slide groove (8), the protrusion (15) is inserted into the corresponding arc-shaped slot (14); The spray angle adjustment assembly includes an umbrella handle (16) located at the bottom of the motor sleeve (11). The outer wall of the umbrella handle (16) is connected with several connecting rods (17) in the circumferential direction. The number of connecting rods (17) is the same as the number of push rods (9). A second connecting rod (18) is hinged to one end of the connecting rod (17) away from the umbrella handle (16). A third connecting rod (19) is hinged to one end of the second connecting rod (18) away from the connecting rod (17). The rod part of the third connecting rod (19) is hinged to the corresponding push rod (9). A nozzle fixing part (20) for installing the spray head (3) is provided at one end of the third connecting rod (19) away from the second connecting rod (18).

2. A fog cannon machine according to claim 1, characterized in that A fan (4) is provided inside the other end of the air duct (1). The edge of the fan (4) is provided with an annular inner lining (5) along the circumferential direction. The inner lining (5) is detachably connected to the side wall of the air duct (1).

3. A fog cannon according to claim 1, characterized in that, Multiple support rods (7) are connected to the outer wall of the disc (6), and the end of each support rod (7) away from the disc (6) is installed on the inner wall of the air duct (1).

4. A fog cannon machine according to claim 1, characterized in that The nozzle fixing component (20) is a mounting ring, and the spray head (3) is inserted into the mounting ring.

5. A fog cannon machine according to claim 1, characterized in that The length ratio of the push rod (9) to the length of the first connecting rod (10) is 5:

1.

6. A fog cannon machine according to claim 1, characterized in that The length of the connecting rod (17) is in the ratio of the length of the second connecting rod (18) to the length of the third connecting rod (19) to 2:2:

5.

7. A fog cannon machine according to claim 5, characterized in that Each spray head (3) is located below the inner middle of the corresponding air guide (2).

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