Fire-fighting smoke exhaust axial flow fan

Abstract

The utility model discloses a kind of fire-fighting smoke exhaust axial flow ventilator, it is related to axial flow ventilator field, including installation cylinder, the inside of installation cylinder is equipped with motor, and the output end of motor is provided with impeller, the both ends of installation cylinder are equipped with intercepting component, the intercepting component includes mounting ring and filter screen, the mounting ring is sleeved in the outer wall of installation cylinder, and the side of mounting ring is fixed with filter screen, the side of a group of filter screen is provided with cleaning assembly, the cleaning assembly includes push rod and connecting component, the connecting component includes the fixed rod fixed in the side of impeller. The utility model solves the problem that the existing axial flow ventilator installation place is easy to have birds entering indoor, the filter screen set can conveniently intercept birds, avoid the problem that birds enter indoor, mounting ring is connected with installation cylinder by thread, can conveniently disassemble it, the purpose of replacing filter screen.

Description

Technical Field

[0001] This utility model relates to the field of axial flow fans, specifically a fire-fighting smoke exhaust axial flow fan. Background Technology

[0002] Axial flow fans are one of the most widely used ventilation devices in industrial, civil and building fields. Their core feature is that the airflow flows along the axis of the fan (parallel to the plane of impeller rotation). With advantages such as simple structure, large air volume and convenient installation, they cover a variety of scenarios such as ventilation, cooling and smoke exhaust. They are usually installed on the wall to connect the indoor and outdoor spaces.

[0003] Existing axial flow fans are usually installed directly on the wall during use. However, the impeller is directly exposed to the outside, which makes it easy for birds or some large insects to enter the room through the air inlet, which can easily cause safety accidents. At the same time, when the impeller is rotating, birds can also hit the impeller and cause damage. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a fire-fighting smoke exhaust axial flow fan to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire-fighting smoke exhaust axial flow fan, comprising an installation cylinder, a motor installed inside the installation cylinder, and an impeller provided at the output end of the motor. Interception components are installed at both ends of the installation cylinder, each interception component comprising an installation ring and a filter screen. The installation ring is sleeved on the outer wall of the installation cylinder, and a filter screen is fixed to one side of the installation ring. A cleaning component is provided on one side of a set of filter screens. The cleaning component comprises a lever and a connecting component. The connecting component comprises a second fixing rod fixed to one side of the impeller, and a connecting column fixed to the outer wall of the second fixing rod. A first fixing rod is fixed to the end of the second fixing rod, and a screw is fixed to the end of the fixing rod. A nut is installed at the end of the screw.

[0006] By adopting the above technical solution, the problem of birds easily entering the room at the installation location of existing axial flow fans is solved. The filter screen can easily intercept birds and prevent them from entering the room. The mounting ring is connected to the mounting cylinder by threads, which can be easily disassembled to replace the filter screen.

[0007] The present invention is further configured such that an installation groove is provided inside the mounting rod, and a second through hole is provided inside the mounting rod, and a bearing is sleeved on the outer wall of the connecting column.

[0008] Preferably, the bearing is installed on the inner wall of the mounting groove to reduce the friction between the connecting column and the mounting rod.

[0009] The present invention is further configured such that a second through hole is provided inside the lever, and the inner wall of the second through hole is in contact with the outer wall of the first fixing rod.

[0010] Preferably, the second through hole allows the lever to be easily fitted onto the outer wall of the first fixed rod, facilitating the disassembly and installation of the lever.

[0011] The present invention is further configured such that an installation rod is fixed inside the installation cylinder, and one side of the installation rod is attached to one side of the filter screen, and a first through hole is opened inside the filter screen.

[0012] Preferably, the first through hole allows for easy contact with the protrusion on one side of the mounting rod, thus ensuring that the filter screen fits snugly against the mounting rod and preventing the filter screen from deforming inward.

[0013] The present invention is further configured such that the mounting ring is connected to the mounting cylinder by a thread, which allows the mounting ring to be easily disassembled for replacement of the damaged filter screen.

[0014] The present invention is further configured such that a magnetic block is fixed on one side of the lever, and a limiting ring is sleeved on the outer wall of the nut, and protrusions are fixed on both sides of the limiting ring. The limiting ring is made of iron, and the protrusions are located on both sides of the lever.

[0015] Preferably, the protrusions on both sides of the lever prevent the nut from rotating, and the limiting ring, by cooperating with the magnetic block, prevents the limiting ring from separating from the lever.

[0016] In summary, the present invention has the following main advantages: 1. This utility model solves the problem of birds easily entering the room at the installation location of existing axial flow fans by setting an installation ring and a filter screen. The filter screen can easily intercept birds and prevent them from entering the room. The installation ring is connected to the installation cylinder by threads, which can be easily disassembled to replace the filter screen.

[0017] 2. This utility model features a lever and connecting components. The lever facilitates the cleaning of floating objects (plastic bags or helium balloons) attached to the air inlet, preventing them from clogging the filter and causing poor performance. During installation, a nut limits the lever's position, ensuring it fits snugly against the filter. A retaining ring also limits the nut's position, preventing it from loosening over time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the installation of the bearing of this utility model; Figure 4 This is a perspective view of the lever of this utility model; Figure 5 This is a perspective view of the connecting component of this utility model; Figure 6 This is a perspective view of the mounting rod of this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Mounting cylinder; 2. Mounting ring; 21. Filter screen; 3. Impeller; 4. Bearing; 5. Connecting assembly; 51. Connecting column; 52. First fixing rod; 53. Screw; 54. Second fixing rod; 6. Mounting rod; 61. Mounting groove; 7. Toggle lever; 71. Magnetic block; 8. First through hole; 9. Second through hole; 10. Nut; 11. Limiting ring; 12. Protrusion. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The embodiments of this utility model will be described below based on its overall structure.

[0022] Example 1: Please refer to Figures 1-6 The system includes an installation cylinder 1, inside which a motor is installed, and an impeller 3 is provided at the output end of the motor. Both ends of the installation cylinder 1 are equipped with interception components, each including an installation ring 2 and a filter screen 21. The installation ring 2 is fitted onto the outer wall of the installation cylinder 1, and a filter screen 21 is fixed to one side of the installation ring 2. A cleaning component is provided on one side of a set of filter screens 21. The cleaning component includes a lever 7 and a connecting component 5. The connecting component 5 includes a second fixing rod 54 fixed to one side of the impeller 3, and the outer wall of the second fixing rod 54 is fixed with… The connecting column 51 and the end of the second fixing rod 54 are fixed with the first fixing rod 52, and the end of the first fixing rod 52 is fixed with the screw 53. The end of the screw 53 is fitted with the nut 10. Then the lever 7 is installed. The second through hole inside the lever 7 is inserted into the outer wall of the first fixing rod 52. Then the nut 10 is screwed onto the outer wall of the screw 53. Next, the limiting ring 11 is sleeved on the outer wall of the nut 10. The protrusions 12 on both sides of the limiting ring 11 are engaged with the two sides of the lever 7. The setting of the connecting components makes it easy to install the lever 7.

[0023] For details regarding the above embodiments, please refer to [link / reference]. Figure 3The mounting rod 6 has an internal mounting groove 61 and a second through hole 9. The outer wall of the connecting column 51 is fitted with a bearing 4. The bearing 4 reduces the friction between the connecting column 51 and the mounting rod 6. The bearing is installed on the inner wall of the mounting groove 61.

[0024] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 The lever 7 has a second through hole 9 inside, and the inner wall of the second through hole 9 fits against the outer wall of the first fixed rod 52. The second through hole 9 allows the lever 7 to be easily fitted onto the outer wall of the first fixed rod 52, facilitating the disassembly and installation of the lever 7.

[0025] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 A first through hole 8 is provided inside a set of filter screens 21. An installation rod 6 is fixed inside the installation cylinder 1, and one side of the installation rod 6 is attached to one side of the filter screen 21. The first through hole 8 allows for easy attachment to the protrusion on one side of the installation rod 6, thereby making the filter screen and the installation rod 6 fit together and preventing the filter screen 21 from deforming inward.

[0026] For details regarding the above embodiments, please refer to [link / reference]. Figure 1 The mounting ring 2 is connected to the mounting cylinder 1 by means of threads or magnetic attraction, which makes it easy to remove the mounting ring 2 to replace the damaged filter screen 21.

[0027] Example 2: Please refer to Figure 1 and Figure 4 A magnetic block 71 is fixed on one side of the lever 7, and a limiting ring 11 is fitted on the outer wall of the nut 10. Protrusions 12 are fixed on both sides of the limiting ring 11. The limiting ring 11 is made of iron, and the protrusions 12 are located on both sides of the lever 7. The protrusions 12 located on both sides of the lever 7 can prevent the nut 10 from rotating. The limiting ring 11 cooperates with the magnetic block 71 to prevent the limiting ring 11 from separating from the lever 7.

[0028] In practical operation, the second fixing rod 54 is fixed to one side of the impeller 3. Then, the mounting ring 2 is installed at both ends of the mounting cylinder 1. A set of filter screens 21 with the first through hole 8 is close to the impeller 3. Then, the lever 7 is installed. The second through hole inside the lever 7 is inserted into the outer wall of the first fixing rod 52. Then, the nut 10 is screwed onto the outer wall of the screw 53. Next, the limiting ring 11 is sleeved on the outer wall of the nut 10. The protrusions 12 on both sides of the limiting ring 11 are engaged with the two sides of the lever 7. The magnetic block 71 is attracted to the limiting ring 11, thereby limiting the limiting ring 11. At the same time, the limiting ring 11 can also limit the nut, preventing the nut from easily loosening.

[0029] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A fire-fighting smoke exhaust axial flow fan, comprising a mounting cylinder (1), wherein a motor is installed inside the mounting cylinder (1), and an impeller (3) is provided at the output end of the motor, and interception components are installed at both ends of the mounting cylinder (1), characterized in that: The interception component includes a mounting ring (2) and a filter screen (21). The mounting ring (2) is sleeved on the outer wall of the mounting cylinder (1), and a filter screen (21) is fixed on one side of the mounting ring (2). A cleaning component is provided on one side of a set of filter screens (21). The cleaning component includes a lever (7) and a connecting component (5).

2. A fire smoke evacuation axial fan according to claim 1, characterized in that: The connecting assembly (5) includes a second fixing rod (54) fixed to one side of the impeller (3), and a connecting column (51) is fixed to the outer wall of the second fixing rod (54). A first fixing rod (52) is fixed to the end of the second fixing rod (54), and a screw (53) is fixed to the end of the first fixing rod (52). A nut (10) is installed at the end of the screw (53).

3. A fire-fighting smoke exhaust axial flow fan according to claim 2, characterized in that: An installation rod (6) is fixed inside the installation cylinder (1), and one side of the installation rod (6) is attached to one side of the filter screen (21).

4. A smoke extraction axial fan for fire fighting according to claim 3, characterized in that: The mounting rod (6) has an installation groove (61) inside and a second through hole (9) inside. The outer wall of the connecting column (51) is fitted with a bearing (4).

5. A fire smoke evacuation axial fan according to claim 2, characterized in that: The lever (7) has a second through hole (9) inside, and the inner wall of the second through hole (9) is in contact with the outer wall of the first fixing rod (52).

6. A fire smoke evacuation axial fan according to claim 4, characterized in that: A magnetic block (71) is fixed on one side of the lever (7), and a limiting ring (11) is sleeved on the outer wall of the nut (10). Protrusions (12) are fixed on both sides of the limiting ring (11).

7. A fire smoke evacuation axial fan according to claim 6, characterised in that: A first through hole (8) is provided inside the filter screen (21).

8. A fire smoke evacuation axial fan according to claim 6, characterized in that: The mounting ring (2) is connected to the mounting cylinder (1) by threads, which makes it easy to disassemble the mounting ring (2) to replace the damaged filter screen (21).

9. A fire smoke evacuation axial fan according to claim 6, characterized in that: The limiting ring (11) is made of iron, and the protrusions (12) are located on both sides of the lever (7).

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