Novel detachable motor fan protection box of air inlet system

Abstract

The utility model discloses a novel detachable motor fan protection box of an air inlet system. The novel detachable motor fan protection box comprises a fan protection box body, a rainproof cap, a porous screen plate, a pressing plate fixing assembly and a bolt fixing assembly. The lower end of the fan protection box body is connected with a lower flange; a plurality of U-shaped grooves I are uniformly formed in the edge of the lower flange; the upper end of the fan protection box body is connected with an upper flange; a plurality of U-shaped grooves II are uniformly formed in the edge of the upper flange; a plurality of square openings which are uniformly distributed are formed in the periphery of the side edge of the fan protection box body, and porous screen plates are arranged at the positions of the square openings; the two vertical side edges of the porous screen plate are fixed through a plurality of sets of bolt fixing assemblies. The rainproof cap is fixed to the upper end of the fan protection box body through the pressing plate fixing assembly. According to the scheme, the structure is simple, welding procedures are reduced, then the spark danger in work is reduced, the problem that the perforated plate screen is oxidized under the outdoor working condition is solved, and local replacement and maintenance are facilitated in the aspect of technical maintenance.

Description

Technical Field

[0001] The utility model relates to a motor fan protection box with a new type of detachable air intake system, belonging to the technical field of fan protection boxes for motors. Background Technique

[0002] Traditional technology uses welding technology to directly weld a porous screen plate around the fan protection box, which has potential safety hazards during operation. The working environment of the motor includes indoor and outdoor. For vertical and horizontal motors, the air outside is inhaled into the motor through the porous screen plate, and the porous screen plate may rust. The rusting of the porous screen plate reduces the area of the air inlet, and rust enters the body of the fan protection box, resulting in quality problems. At the same time, the porous screen plate, the rain cap, and the fan protection box are integrally welded, which is not convenient for users to maintain and for after-sales personnel to repair.

[0003] In view of the problems in the above background technique, it is necessary to improve the design structure of the porous screen plate of the existing fan protection box. Content of the Utility Model

[0004] In view of the problems existing in the above-mentioned prior art, the utility model provides a motor fan protection box with a new type of detachable air intake system, so as to solve the above-mentioned technical problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a motor fan protection box with a new type of detachable air intake system, including a fan protection box body, a rain cap, a porous screen plate, a pressing plate fixing component, and a bolt fixing component; a lower flange is connected to the lower end of the fan protection box body; a plurality of U-shaped grooves I are uniformly arranged on the edge of the lower flange, and the U-shaped grooves I are used for connecting the fan protection box body with the motor; an upper flange is connected to the upper end of the fan protection box body; a plurality of U-shaped grooves II are uniformly arranged on the edge of the upper flange, and the U-shaped grooves II are used for connecting the fan protection box body with the rain cap; a plurality of uniformly arranged square openings are opened on the side of the fan protection box body in a circle, and a porous screen plate is arranged at the position of the square openings; the two vertical sides of the porous screen plate are fixed by a plurality of groups of bolt fixing components; the rain cap is fixed to the upper end of the fan protection box body through a pressing plate fixing component.

[0006] Further, a plurality of installation and fixing holes are left at the upper and lower positions of the left and right end side plates of the porous screen plate, which are used for the bolt fixing component to fix the whole porous screen plate around the fan protection box body; the bolt fixing component includes a bolt, a nut, and a gasket; the bolt sequentially passes through the fixing holes of the two side plates and is locked by the cooperation of the nut and the gasket.

[0007] Further, 4 groups of bolt fixing components are provided, which are uniformly arranged up and down.

[0008] Furthermore, the pressing plate fixing assembly includes a pressing plate, bolts, gaskets and lock nuts. The pressing plate fixing assembly is arranged on the second U-shaped groove. The pressing plate is arranged at the lower end face of the plane where the second U-shaped groove is located. It is fixed by passing bolts through the connecting holes at the bottom edge of the pressing plate, the second U-shaped groove and the rain cap in sequence and fixing with lock nuts, so that the upper end part of the fan protection box body is fixedly connected with the whole rain cap.

[0009] Furthermore, the diameter of the edge of the top plate of the rain cap is larger than the diameter of the fan protection box body.

[0010] Furthermore, three connecting lugs are evenly arranged on the top plate.

[0011] Furthermore, eight evenly arranged square openings are provided on the annular side surface of the fan protection box body.

[0012] Furthermore, four evenly arranged supporting lugs are also provided on the annular side surface of the fan protection box body. The supporting lugs are located below the porous screen plate.

[0013] The beneficial effects of the present utility model are as follows: The design of this solution is novel, the structure is simple, it protects personal safety, reduces the welding process, thereby reducing the risk of sparks during work, solves the problem of oxidation of the porous plate screen under outdoor working conditions, and is convenient for local replacement and maintenance in technical maintenance, reducing a large amount of costs; it has multiple advantages of rain protection, dust protection and rust prevention, and effectively improves the protection level of the motor. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the motor fan protection box of the detachable air intake system of the present utility model.

[0015] Figure 2 It is a front view of the motor fan protection box of the new detachable air intake system of the present utility model.

[0016] Figure 3 It is an enlarged view of the connection and fixing part of the motor fan protection box of the new detachable air intake system of the present utility model.

[0017] In the figure: 1. Fan protection box body, 11. First U-shaped groove, 12. Second U-shaped groove, 13. Supporting lug, 2. Rain cap, 21. Connecting lug, 3. Porous screen plate, 4. Pressing plate fixing assembly, 41. Pressing plate, 5. Bolt fixing assembly. Detailed Embodiment

[0018] To make the objectives, technical solutions, and advantages of the present utility model clearer and more apparent, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0019] Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0020] As Figure 1 、 Figure 2 and Figure 3 shown, a motor fan protection box of a new type of detachable air intake system includes a fan protection box body 1, a rain cap 2, a porous screen plate 3, a pressing plate fixing component 4, and a bolt fixing component 5; a lower flange is connected to the lower end of the fan protection box body 1; a plurality of U-shaped grooves 11 are uniformly arranged on the edge of the lower flange, and the U-shaped grooves 11 are used for connecting the fan protection box body 1 to the motor; an upper flange is connected to the upper end of the fan protection box body 1; a plurality of U-shaped grooves 12 are uniformly arranged on the edge of the upper flange, and the U-shaped grooves 12 are used for connecting the fan protection box body 1 to the rain cap 2; a plurality of uniformly arranged square openings are formed in a circle on the side of the fan protection box body 1, and a porous screen plate 3 is arranged at the position of the square openings; two vertical side edges of the porous screen plate 3 are fixed by a plurality of groups of bolt fixing components 5; the rain cap 2 is fixed to the upper end of the fan protection box body 1 by a pressing plate fixing component 4.

[0021] Preferably in this embodiment, a plurality of mounting and fixing holes are left at the upper and lower positions of the left and right end side plates of the porous screen plate 3, which are used for the bolt fixing component 5 to fix the porous screen plate 3 as a whole around the fan protection box body 1; the bolt fixing component 5 includes a bolt, a nut, and a gasket; the bolt passes through the fixing holes of the two side plates in sequence and is locked by the cooperation of the nut and the gasket.

[0022] Preferably in this embodiment, 4 groups of bolt fixing components 5 are provided and are uniformly arranged up and down.

[0023] Preferably in this embodiment, the pressing plate fixing component 4 includes a pressing plate 41, a bolt, a gasket, and a locking nut. The pressing plate fixing component 4 is arranged on the U-shaped groove 12. The pressing plate 41 is arranged at the lower end surface of the plane where the U-shaped groove 12 is located. It is fixed by passing the bolt through the connection holes of the pressing plate 41, the U-shaped groove 12, and the bottom edge of the rain cap 2 in sequence and locking with the locking nut, so that the upper end part of the fan protection box body 1 and the rain cap 2 are fixedly connected as a whole.

[0024] Preferably, in this embodiment, the diameter of the edge of the top plate of the rainproof cap 2 is greater than the diameter of the fan protection box body 1.

[0025] Preferably, in this embodiment, three connecting lugs 21 are evenly arranged on the top plate.

[0026] Preferably, in this embodiment, eight evenly arranged square openings are provided on the annular side surface of the fan protection box body 1.

[0027] Preferably, in this embodiment, four evenly arranged support lugs 13 are further provided on the annular side surface of the fan protection box body 1, and the support lugs 13 are located below the porous screen plate 3.

[0028] This mechanism adopts a detachable structure design. The detachable connection between the fan protection box body 1 and the rainproof cap 2 is realized through the pressing plate fixing component 4; the detachable connection between the porous screen plate 3 and the fan protection box body 1 is realized through the bolt fixing component 5, replacing the traditional welding method. After the porous screen plate 3 surrounds the fan protection box body 1, it is tightened and locked with bolts, gaskets and nuts. Loosening the nuts can adjust the position of the porous screen plate without welding, which is convenient for maintenance and replacement.

[0029] This solution is novel in design, simple in structure, protects personal safety, reduces the welding process, thereby reducing the risk of sparks during work, solves the problem of oxidation of the porous plate screen under outdoor working conditions, and is convenient for local replacement and maintenance in technical maintenance, reducing a large cost; it has multiple advantages of rainproof, dustproof and rustproof, effectively improving the protection level of the motor.

[0030] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel detachable motor fan protection box for an air intake system, characterized in that: The fan protection box body (1) comprises a fan protection box body (1), a rain cap (2), a porous screen plate (3), a pressure plate fixing assembly (4) and a bolt fixing assembly (5); the lower end of the fan protection box body (1) is connected to a lower flange; the edge of the lower flange is evenly provided with a plurality of U-shaped grooves (11), and the U-shaped grooves (11) are used to connect the fan protection box body (1) with a motor; the upper end of the fan protection box body (1) is connected to an upper flange; the edge of the upper flange is evenly provided with a plurality of U-shaped grooves (12), and the U-shaped grooves (12) are used to connect the fan protection box body (1) with the rain cap (2); a plurality of evenly arranged square openings are opened around the side of the fan protection box body (1), and a porous screen plate (3) is provided at the position of the square opening; two vertical sides of the porous screen plate (3) are fixed by a plurality of sets of bolt fixing assemblies (5); the rain cap (2) is fixed to the upper end of the fan protection box body (1) by a pressure plate fixing assembly (4).

2. A novel detachable motor fan protection box for an air intake system according to claim 1, characterized in that: The left and right side plates of the porous screen plate (3) have a plurality of mounting holes at the upper and lower positions, which are used for a bolt fixing assembly (5) to fix the porous screen plate (3) as a whole around the fan protection box body (1); the bolt fixing assembly (5) comprises bolts, nuts and washers; the bolts pass through the fixing holes of the two side plates in sequence and are locked by the nuts and washers.

3. The novel detachable motor fan protection box of the air intake system according to claim 1 is characterized in that: The bolt fixing assemblies (5) are provided in four groups, which are evenly arranged up and down.

4. A novel detachable motor fan protection box for an air intake system according to claim 1, characterized in that: The pressure plate fixing assembly (4) comprises a pressure plate (41), bolts, washers and locking nuts. The pressure plate fixing assembly (4) is arranged on the second U-shaped groove (12). The pressure plate (41) is arranged at the lower end surface of the plane where the second U-shaped groove (12) is located. The bolts pass through the pressure plate (41), the second U-shaped groove (12) and the connecting holes at the bottom edge of the rain cap (2) in sequence and are fixed by the locking nuts, thereby fixing the upper end of the fan protection box body (1) to the rain cap (2) as a whole.

5. The novel detachable motor fan protection box of the air intake system according to claim 1 is characterized in that: The diameter of the edge of the top plate of the rainproof cap (2) is greater than the diameter of the fan protection box body (1).

6. A novel detachable motor fan protection box for an air intake system according to claim 5, characterized in that: The top plate is provided with three evenly arranged connection lugs (21).

7. The novel detachable motor fan protection box of the air intake system according to claim 1 is characterized in that: Eight evenly arranged square openings are provided on the annular side surface of the fan protection box body (1).

8. The novel detachable motor fan protection box of the air intake system according to claim 1 is characterized in that: The annular side surface of the fan protection box body (1) is also provided with four evenly arranged support ears (13), and the support ears (13) are located below the porous screen plate (3).

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