Wall type ventilation axial flow fan with waterproof function

Abstract

The utility model relates to the technical field of ventilation equipment, and discloses a wall type ventilation axial flow fan with a waterproof function, which comprises a protective cover, a protective plate and bolts, a fan unit is fixedly connected to the left side of the interior of the protective cover, and a square frame is fixedly connected to the left side of the protective plate. A plurality of rain baffles are rotatably connected to the inner wall of the middle of the square frame, first rotating shafts are fixedly connected to the bottom ends of the front side and the rear side of each rain baffle, second rotating shafts are fixedly connected to the top ends of the front side and the rear side of each rain baffle, sliding grooves are formed in the front side and the rear side of the middle of the protection plate, and telescopic motors are fixedly connected to the top ends of the inner walls of the sliding grooves. According to the cover flow fan, effective rain prevention is achieved, the angle of the rain baffle can be adjusted according to airflow and the external environment, the airflow efficiency of the fan is optimized, energy waste is reduced, a part fixed by the detached protection plate can be easily rotated to one side of the protection cover, and maintenance is facilitated for maintenance personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a wall-type ventilation axial flow fan with a waterproof function. Background Art

[0002] An axial flow fan is one in which the airflow is in the same direction as the axis of the fan blades (i.e. the direction of the wind is parallel to the axis). For example, electric fans and air conditioner outdoor fans are fans that operate in an axial flow manner. Axial flow fans are also called local ventilation fans. They are a type of fan commonly used in industrial and mining enterprises. Unlike ordinary fans, their motor and fan blades are in a cylinder, and their appearance is a cylinder. They are used for local ventilation, are easy to install, have obvious and safe ventilation effects, and can be connected to a wind duct to deliver air to a designated area.

[0003] While traditional wall-mounted axial fans provide effective air circulation, they are significantly less resistant to rain or liquid intrusion. This not only damages the fan's internal components but also potentially impacts its efficiency and lifespan. Furthermore, existing protective measures often neglect the convenience of repair and maintenance, resulting in complex and time-consuming repairs when the fan malfunctions. To address these issues, a waterproof wall-mounted axial fan was proposed. Utility Model Content

[0004] In order to make up for the above shortcomings, the present invention provides a wall-mounted axial flow fan with waterproof function, which aims to improve the problem that traditional wall-mounted axial flow fans in the prior art are easily damaged by water ingress on rainy days and are difficult to repair.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The cam is fixedly provided with a toothed plate on the left side of the protective cover, and the toothed plate is fixedly provided with a toothed plate on the left side of the protective cover, and the toothed plate is fixedly provided with a toothed plate on the left side of the protective cover, and the toothed plate is fixedly provided with a toothed plate on the right side of the protective cover, and the toothed plate is fixedly provided with a toothed plate on the left side of the protective cover, and the toothed plate is fixedly provided with a toothed plate on the right side of the protective cover, and the toothed plate is fixedly provided with a toothed plate on the left side of the protective cover, and the toothed plate is fixedly provided with a toothed plate on the right side of the protective cover,

[0007] As a further description of the above technical solution:

[0008] The limiting assembly includes a pawl, the middle part of which is rotatably connected to the inner bottom end of the protective cover, the front side of the protective cover is slidably connected to a pull rod, the outer part of the pull rod is sleeved with a strong spring, the four right corners of the protective cover are each provided with a first mounting hole, and the four left corners of the protective plate are each provided with a second mounting hole;

[0009] As a further description of the above technical solution:

[0010] The outer portion of the rotating shaft 1 is rotatably connected to the front and rear sides of the inner wall of the frame, and the front and rear sides of the rain shield are slidably connected to the middle inner wall of the protective plate;

[0011] As a further description of the above technical solution:

[0012] The outer portions of the plurality of second rotating shafts are rotatably connected to adjacent sides of the two connecting bars, and the left side of the second rotating rod is rotatably connected to the upper and lower ends of the inner portion of the protective cover;

[0013] As a further description of the above technical solution:

[0014] The assembly of the rotating rod 1 is connected to the upper and lower ends of the inner part of the protective cover, and the bottom end of the ratchet is connected to the bottom end of the inner wall of the protective cover in a sliding manner;

[0015] As a further description of the above technical solution:

[0016] The left outer portion of the pawl is engaged with the outer teeth of the ratchet wheel, and the rear end of the pull rod is rotatably connected to the middle portion of the front side of the pawl;

[0017] As a further description of the above technical solution:

[0018] One end of the strong spring is fixedly connected to the front side of the inner wall of the protective cover, and the other end of the strong spring is fixedly connected to the middle part of the front side of the pawl;

[0019] As a further description of the above technical solution:

[0020] The outer portion of the bolt is detachably connected to the inner wall of the first mounting hole, and the outer portion of the bolt is detachably connected to the inner wall of the second mounting hole.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the telescopic motor is started to push the slide, so that the slide drives the rain shield to rotate in the middle of the frame with the rotation axis 1 as the center through the rotation axis 2, thereby effectively preventing rainwater or liquid from entering the inside of the fan, thereby protecting the fan from water damage, and the angle of the rain shield can be adjusted according to the airflow and external environment, optimizing the airflow efficiency of the fan and reducing energy waste.

[0023] 2. In the present invention, the protective plate and the protective cover are separated by removing the bolts, and then the protective plate is pulled to one side of the protective cover. Since the protective plate and the protective cover are connected by rotating rods 1 and 2, the protective plate will be supported by rotating rods 1 and 2 to one side of the protective cover when it is pulled, and since a ratchet and a pawl are provided on the left side of rotating rod 2, the fixed parts of the removed protective plate can be easily rotated to one side of the protective cover, which is convenient for maintenance personnel to clean and maintain the wind turbine and the rain shield and frame of the protective plate without completely disassembling the wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a wall-type ventilation axial flow fan with waterproof function proposed by the utility model;

[0025] Figure 2 This is a structural diagram of a rotating shaft 1 of a wall-type ventilation axial flow fan with waterproof function proposed by the present invention;

[0026] Figure 3 This is a structural diagram of a wall-type ventilation axial flow fan slideway with waterproof function proposed by the utility model;

[0027] Figure 4 This is a structural diagram of a second rotating rod of a wall-type axial flow fan with waterproof function proposed by the present invention;

[0028] Figure 5 This is a schematic structural diagram of a ratchet wheel for a wall-mounted axial flow fan with waterproof function proposed by the present invention;

[0029] Figure 6 This is a structural diagram of a wall-type ventilation axial flow fan installation hole 1 with waterproof function proposed by the utility model;

[0030] Figure 7 This is a structural schematic diagram of a wall-type ventilation axial flow fan protective cover with waterproof function proposed by the utility model.

[0031] Legend:

[0032] 1. Protective cover; 2. Fan unit; 3. Guard plate; 4. Frame; 5. Rain shield; 6. Rotating shaft 1; 7. Rotating shaft 2; 8. Slide; 9. Telescopic motor; 10. Connecting strip; 11. Filter; 12. Rotating rod 1; 13. Rotating rod 2; 14. Ratchet; 15. Pawl; 16. Pull rod; 17. Power spring; 18. Mounting hole 1; 19. Mounting hole 2; 20. Bolt. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figures 1 to 3 The utility model provides an embodiment: a wall-mounted ventilated axial flow fan with waterproof function, including a protective cover 1, a protective plate 3 and a bolt 20. The protective cover 1 is the external protective structure of the fan, usually made of corrosion-resistant material, to ensure the protection of the internal fan unit 2. The fan unit 2 is fixedly connected to the left side of the interior of the protective cover 1. The fan unit 2 is responsible for the flow and ventilation of air and is the core component of the system. The left side of the protective plate 3 is fixedly connected to a square frame 4. The protective plate 3 is a component connecting the fan and the outside world, including a square frame 4 installed on its left side.

[0035] Multiple rain shields 5 are rotatably connected to the central inner wall of frame 4. Frame 4 forms a support frame for rain shields 5, ensuring their stability and adjustability. The front and rear ends of rain shields 5 are slidably connected to the central inner wall of protective plate 3. Axis 1 (6) is fixedly connected to the bottom ends of both front and rear ends of rain shields 5. This allows rain shields 5 to slide and rotate within protective plate 3, adjusting their angles to optimize protection. Externally, shafts 1 (6) are rotatably connected to the front and rear inner walls of frame 4 to prevent rainwater or other external liquids from entering the fan. Their bottom ends are fixedly connected to shaft 1 (6) and their top ends are connected to shaft 2 (7), allowing them to rotate freely within frame 4.

[0036] The top ends of the front and rear sides of the rain shield 5 are fixedly connected with a rotating shaft 2 7, and the external rotations of multiple rotating shafts 2 7 are connected to the adjacent sides of two connecting strips 10. Slide grooves 8 are provided on the front and rear sides of the middle part of the protective plate 3. The top end of the inner wall of the slide groove 8 is fixedly connected with a telescopic motor 9. The driving end of the telescopic motor 9 is fixedly connected with a connecting strip 10. The telescopic motor 9 controls the movement of the rain shield 5 by driving the connecting strip 10. The telescopic motor 9 provides an automatic adjustment function. The connecting strip 10 connects and transmits the driving force of the telescopic motor 9 to the rain shield 5 to adjust its position. The rear side of the protective plate 3 box is fixedly connected with a filter screen 11. The filter screen 11 filters impurities in the air to ensure that the air flowing into the fan is clean.

[0037] refer to Figures 5 to 7The rear ends of the upper and lower sides of the filter 11 are rotatably connected to rotating rods 12. Rotating rods 12 are assembled and rotatably connected to the upper and lower ends of the interior of the protective cover 1. Rotating rods 12 allow the filter 11 to rotate around the interior of the protective cover 1, facilitating positioning during maintenance. Rotating rods 2 13 are rotatably connected to the middle of the upper and lower sides of the filter 11. The left side of rotating rod 2 13 is rotatably connected to the upper and lower ends of the interior of the protective cover 1.

[0038] A ratchet 14 is fixedly connected to the left bottom end of the second rotating rod 13. The bottom end of ratchet 14 is slidably connected to the bottom end of the inner wall of the protective cover 1. A limit assembly is provided on the front side of the bottom end of the protective cover 1. The limit assembly includes a pawl 15. The left outer portion of pawl 15 engages with the outer teeth of ratchet 14. Ratchet 14 is fixed to the bottom end of the second rotating rod 13, and pawl 15 engages with it. Ratchet 14 provides one-way rotation control, and pawl 15 prevents accidental movement of the protective cover 3 during maintenance, ensuring stability.

[0039] The middle part of the pawl 15 is rotatably connected to the inner bottom end of the protective cover 1, and the front side of the protective cover 1 is slidably connected to a pull rod 16. The rear end of the pull rod 16 is rotatably connected to the front middle part of the pawl 15. A strong spring 17 is provided on the outside of the pull rod 16. One end of the strong spring 17 is fixedly connected to the front side of the inner wall of the protective cover 1, and the other end of the strong spring 17 is fixedly connected to the front middle part of the pawl 15. The pull rod 16 controls the disengagement and engagement of the pawl 15, and the strong spring 17 keeps the pawl 15 in normal working state.

[0040] Mounting holes 18 are defined at each of the four right corners of protective cover 1, and mounting holes 19 are defined at each of the four left corners of protective plate 3. These holes are removably connected to the inner walls of mounting holes 18 and 2, 19, of protective cover 1 and protective plate 3. Bolts 20 are removably attached to the inner walls of mounting holes 18 and 2, respectively, and the outer ends of bolts 20 are removably attached to the inner walls of mounting holes 18 and 2, respectively, 19. Bolts 20 secure protective plate 3 and protective cover 1 together, completing installation and maintenance work.

[0041] Working principle: When maintenance personnel need to inspect the cover ventilation axial flow fan, they can remove the bolts 20 to separate the protective plate 3 and the protective cover 1. At this time, pull the protective plate 3 to allow the filter screen 11 on the rear side of the protective plate 3 to be rotated and connected to the inner side of the protective cover 1 through the rotating rod 2 13 and the rotating rod 1 12, so that the protective plate 3 is supported by the rotating rod 12 and the rotating rod 2 13 to rotate to one side of the protective cover 1. In this process, since the ratchet 14 is fixed to the outside of one end of the rotating rod 2 13 connected to the protective cover 1, and the outside of the ratchet 14 is engaged with the pawl 15, the protective cover 1 can rotate clockwise in the direction of the teeth of the ratchet 14, but cannot rotate counterclockwise, so as to prevent the components connected to the protective plate 3 from accidentally moving and hindering maintenance personnel from repairing. When the maintenance personnel have completed the maintenance, they can pull the pull rod 16 to disengage the pawl 15 from the teeth of the ratchet 14, so that the protective plate 3 can be rotated to fit the protective cover 1. After the maintenance is completed, the pull rod 16 is released. The pull rod 16 will be driven by the elastic force of the strong spring 17 to press against the pawl 15, allowing the pawl 15 to re-engage with the ratchet 14. Finally, the protective cover 1 and the protective plate 3 are installed with the bolts 20 to complete the maintenance.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wall-type axial flow fan with waterproof function, comprising a protective cover (1), a protective plate (3) and a bolt (20), characterized in that: The left side of the interior of the protective cover (1) is fixedly connected to a fan unit (2), the left side of the protective plate (3) is fixedly connected to a square frame (4), the middle inner wall of the square frame (4) is rotatably connected to a plurality of rain shields (5), the front and rear bottom ends of the rain shields (5) are fixedly connected to a first rotating shaft (6), the front and rear top ends of the rain shields (5) are fixedly connected to a second rotating shaft (7), the middle front and rear sides of the protective plate (3) are provided with a slide groove (8), the inner wall top end of the slide groove (8) is fixedly connected to the first rotating shaft (6), and the front and rear top ends of the rain shields (5) are fixedly connected to the second rotating shaft (7). A telescopic motor (9) is fixedly connected to the driving end of the telescopic motor (9) and a connecting bar (10) is fixedly connected to the rear side of the protective plate (3) box. The rear ends of the upper and lower sides of the filter (11) are both rotatably connected to a first rotating rod (12). The middle parts of the upper and lower sides of the filter (11) are rotatably connected to a second rotating rod (13). The left bottom end of the second rotating rod (13) is fixedly connected to a ratchet (14). A limiting component is provided on the front side of the bottom end of the protective cover (1).

2. The wall-mounted axial flow fan with waterproof function according to claim 1, characterized in that: The limiting assembly includes a pawl (15), the middle part of the pawl (15) is rotatably connected to the inner bottom end of the protective cover (1), the front side of the protective cover (1) is slidably connected to a pull rod (16), the outer part of the pull rod (16) is provided with a strong spring (17), the four right corners of the protective cover (1) are each provided with a mounting hole (18), and the four left corners of the protective plate (3) are each provided with a mounting hole (19).

3. The wall-mounted axial flow fan with waterproof function according to claim 1, characterized in that: The outer portion of the rotating shaft (6) is connected to the front and rear sides of the inner wall of the frame (4), and the front and rear sides of the rain shield (5) are connected to the middle inner wall of the protective plate (3) in a sliding manner.

4. The wall-mounted axial flow fan with waterproof function according to claim 1, characterized in that: The outer portions of the plurality of rotating shafts (7) are rotatably connected to the adjacent sides of the two connecting bars (10), and the left side of the rotating rod (13) is rotatably connected to the upper and lower ends of the interior of the protective cover (1).

5. The wall-mounted axial flow fan with waterproof function according to claim 1, characterized in that: The assembly rotation of the rotating rod 1 (12) is connected to the upper and lower ends of the interior of the protective cover (1), and the bottom end of the ratchet (14) is slidably connected to the bottom end of the inner wall of the protective cover (1).

Images