Rainproof roof fan

Abstract

The utility model relates to the technical field of roof fans, in particular to a rainproof roof fan which comprises a bottom plate, a fan body is fixedly connected to the center of the top of the bottom plate, a first vertical plate and a second vertical plate are fixedly connected to the top of the bottom plate respectively, and the first vertical plate and the second vertical plate are arranged on the two sides of the fan body respectively. A side groove is formed in the second vertical plate, and a first magnet is fixedly connected to the inner wall of the side groove; through cooperative use of a first magnet, a second magnet, a side plate, a round rod, an inserting rod, a round hole and a rainproof curtain, the second magnet and the first magnet can be magnetically attracted together in a rainy season, then the rainproof curtain is unfolded, meanwhile, through the inserting effect of the inserting rod on the round rod, an extrusion plate and the second magnet can abut against each other, and therefore the rainproof curtain is unfolded. The firmness between the first magnet and the second magnet is further improved, rainwater is prevented from entering the fan body, the rainproof performance of the fan body is improved, the structure is simple, operation is convenient, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of roof fans, in particular to a rainproof roof fan. Background Art

[0002] Roof fans are fans used on roofs. They are divided into three types: axial flow roof fans, centrifugal roof fans, and motorless turbine exhaust fans. Their main function is to form an air outlet that can quickly alternate between indoor and outdoor airflows, which is very convenient for indoor ventilation. Generally speaking, roof fans are widely used.

[0003] A rainproof roof fan with a Chinese authorized announcement number of CN217814090U can prevent rainwater from entering the air outlet when it rains through the cooperation between the upper rain cover and the lower rain cover. The shape design of the upper rain cover and the lower rain cover can ensure excellent ventilation performance while preventing rain. On sunny days, the upper rain cover can be raised to increase the air outlet space and increase air flow, solving the problem that the existing roof fan rain shield has poor rain protection effect and the rain shield hinders air flow on sunny days.

[0004] There are still certain shortcomings in use. The upper rain cover and the lower rain cover are driven by the motor to fit together. When it rains, rainwater will enter the motor, causing an internal short circuit in the motor and making the motor unable to use normally. At the same time, since the fan is installed on the top of the roof, the surface temperature of the motor will rise in summer and cannot be cooled in time, which will also cause damage to the motor and reduce the practicality of the roof fan when in use. Utility Model Content

[0005] The utility model aims to provide a rainproof roof fan to solve the problem proposed in the above-mentioned background technology that an upper rain cover and a lower rain cover are fitted together by a motor, and rainwater enters the inside of the motor on rainy days, causing an internal short circuit of the motor and making the motor unable to be used normally. At the same time, since the fan is installed on the top of the roof, the surface temperature of the motor will rise in summer and cannot be cooled in time, which will also cause damage to the motor and reduce the practicality of the roof fan when in use.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A rainproof roof fan comprises a base plate, wherein a fan body is fixedly connected to the top center of the base plate, a first vertical plate and a second vertical plate are fixedly connected to the top of the base plate, the first vertical plate and the second vertical plate are respectively arranged on both sides of the fan body, a side groove is opened in the second vertical plate, a first magnet is fixedly connected to the inner wall of the side groove, a side plate is fixedly connected to the side of the second vertical plate, a round rod is slidably connected in the side plate, a round hole is opened in the round rod, a plug rod is inserted into the top of the side plate, the bottom of the plug rod extends into the round hole, an extrusion plate is fixedly connected to the side of the round rod, and the extrusion plate is arranged on the side of the second vertical plate.

[0008] As a preferred solution of the utility model, a through groove is provided in the first vertical plate, a circular ring is fixedly connected to the side surface of the first vertical plate, an annular groove is provided on the inner wall of the circular ring, and a winding rod is arranged in the circular ring.

[0009] As a preferred solution of the utility model, the outside of the winding rod is fixedly connected to a limiting disk, the limiting disk extends into the annular groove and is rotatably connected to the annular groove, and a rainproof curtain is wound around the surface of the winding rod.

[0010] As a preferred solution of the utility model, a second magnet is fixedly connected to the side of the rainproof curtain, and the second magnet extends into the side groove. The magnetic poles of the second magnet and the proximal end of the first magnet are opposite.

[0011] As a preferred solution of the utility model, a side plate is fixedly connected to the side surface of the winding rod, a friction ball is fixedly connected to the outer surface of the side plate, and the surface of the friction ball is provided with anti-slip grooves.

[0012] As a preferred solution of the utility model, a plurality of equally spaced water troughs are provided in the rainproof curtain, the sizes of the plurality of water troughs are the same, and the rainproof curtain is arranged on the top of the fan body.

[0013] As a preferred solution of the utility model, a plurality of the circular holes are provided, the plurality of the circular holes are evenly distributed on the surface of the round rod, and the sizes of the plurality of the circular holes are the same.

[0014] As a preferred solution of the present invention, the winding rod is cylindrical in shape and is made of stainless steel.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, by arranging the first magnet, the second magnet, the side plate, the round rod, the plug rod, the round hole, and the rainproof curtain for coordinated use, the second magnet and the first magnet can be magnetically attracted together in the rainy season, thereby unfolding the rainproof curtain, and at the same time, through the plugging effect of the plug rod on the round rod, the extrusion plate and the second magnet can be abutted together, further improving the firmness between the first magnet and the second magnet, preventing rainwater from entering the interior of the fan body, improving the rainproofness of the fan body, and the structure is simple, easy to operate, and more convenient to use.

[0017] 2. In the utility model, by setting the side plates, friction balls, winding rods, circular rings, annular grooves and limit plates for coordinated use, when the rainproof curtain is not in use, the rainproof curtain can be wound around the surface of the winding rod by rotating the side plates and the winding rod, and then the rainproof curtain can be folded up, thereby preventing the rainproof curtain from being damaged and leaking due to being exposed to the sun outdoors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the side plate and round rod of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the first vertical plate and the second vertical plate of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the winding rod and the circular ring of the utility model.

[0022] In the figure: 1, bottom plate; 2, first vertical plate; 3, second vertical plate; 4, rain curtain; 5, side plate; 6, round rod; 7, plug rod; 8, side groove; 9, first magnet; 10, second magnet; 11, fan body; 12, circular ring; 13, side plate; 14, friction ball; 15, extrusion plate; 16, through groove; 17, winding rod; 18, annular groove; 19, limit plate; 20, circular hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0025] A rainproof roof fan comprises a base plate 1, a fan body 11 is fixedly connected to the top center of the base plate 1, a first vertical plate 2 and a second vertical plate 3 are respectively fixedly connected to the top of the base plate 1, the first vertical plate 2 and the second vertical plate 3 are respectively arranged on both sides of the fan body 11, a side groove 8 is opened in the second vertical plate 3, a first magnet 9 is fixedly connected to the inner wall of the side groove 8, a side plate 5 is fixedly connected to the side of the second vertical plate 3, a round rod 6 is slidably connected to the side plate 5, a round hole 20 is opened in the round rod 6, a plug rod 7 is inserted at the top of the side plate 5, the bottom of the plug rod 7 extends into the round hole 20, an extrusion plate 15 is fixedly connected to the side of the round rod 6, and the extrusion plate 15 is arranged on the side of the second vertical plate 3.

[0026] In this embodiment, Figure 1 and Figure 3 As shown, a through groove 16 is opened in the first vertical plate 2, a circular ring 12 is fixedly connected to the side of the first vertical plate 2, an annular groove 18 is opened on the inner wall of the circular ring 12, a winding rod 17 is arranged in the circular ring 12, the outer part of the winding rod 17 is fixedly connected to a limiting disk 19, the limiting disk 19 extends into the annular groove 18 and is rotatably connected to the annular groove 18, a rainproof curtain 4 is wound around the surface of the winding rod 17, a second magnet 10 is fixedly connected to the side of the rainproof curtain 4, the second magnet 10 extends into the side groove 8, and the magnetic poles of the second magnet 10 and the proximal end of the first magnet 9 are opposite.

[0027] Among them, in the rainy season, the second magnet 10 and the first magnet 9 can be magnetically attracted together, so that the rainproof curtain 4 can be unfolded. At the same time, through the plugging action of the plug rod 7 on the round rod 6, the extrusion plate 15 and the second magnet 10 can be abutted together, further improving the firmness between the first magnet 9 and the second magnet 10, preventing rainwater from entering the interior of the fan body 11, improving the rainproof performance of the fan body 11, and the structure is simple, easy to operate, and more convenient to use.

[0028] In this embodiment, Figure 2 and Figure 4 As shown, the side of the winding rod 17 is fixedly connected to the side plate 13, the outer surface of the side plate 13 is fixedly connected to the friction ball 14, the surface of the friction ball 14 is provided with anti-slip grooves, a plurality of equidistantly distributed water grooves are provided in the rainproof curtain 4, the sizes of the plurality of water grooves are the same, the rainproof curtain 4 is arranged on the top of the fan body 11, a plurality of circular holes 20 are provided, the plurality of circular holes 20 are equidistantly distributed on the surface of the round rod 6, the sizes of the plurality of circular holes 20 are the same, the shape of the winding rod 17 is cylindrical, and the material of the winding rod 17 is stainless steel.

[0029] Among them, by setting the side plate 13, the friction ball 14, the winding rod 17, the ring 12, the annular groove 18 and the limit plate 19 for coordinated use, when the rainproof curtain 4 is not in use, the rainproof curtain 4 can be wound around the surface of the winding rod 17 by rotating the side plate 13 and the winding rod 17, and then the rainproof curtain 4 can be folded up, thereby preventing the rainproof curtain 4 from being exposed to the sun outdoors and causing damage to the rainproof curtain 4 and water leakage.

[0030] The working process of the utility model is as follows: when the rainproof roof fan designed by the present invention is working, the second magnet 10 is pulled on a rainy day to pull the rainproof curtain 4 out from the surface of the winding rod 17, and the second magnet 10 is extended into the side groove 8, so that the second magnet 10 and the first magnet 9 are magnetically attracted together, and the rainproof curtain 4 can be fixed on the top of the fan body 11, and then the round rod 6 is pushed to make the extrusion plate 15 and the first magnet 9 and the second magnet 10 abut together, and the insertion rod 7 is inserted into the round rod 6, through the rainproof curtain 4, rainwater can be prevented from entering the interior of the fan body 11, and the waterproof property of the fan body 11 is improved. At the same time, when it is not raining outdoors, the extrusion plate 15 is moved at this time, so that the extrusion plate 15 and the first magnet 9 and the second magnet 10 no longer abut each other, and then the side plate 13 and the winding rod 17 are rotated, and the rainproof curtain 4 is wound around the surface of the winding rod 17, and the rainproof curtain 4 is collected in the through groove 16, so as to avoid the rainproof curtain 4 from being damaged due to being exposed to the sun outdoors, and the service life of the rainproof curtain 4 is extended.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rainproof roof fan, comprising a bottom plate (1), characterized in that: The center of the top of the bottom plate (1) is fixedly connected to a fan body (11), and the top of the bottom plate (1) is respectively fixedly connected to a first vertical plate (2) and a second vertical plate (3), and the first vertical plate (2) and the second vertical plate (3) are respectively arranged on both sides of the fan body (11), and a side groove (8) is provided in the second vertical plate (3), and a first magnet (9) is fixedly connected to the inner wall of the side groove (8), and a side plate (5) is fixedly connected to the side of the second vertical plate (3), and a round rod (6) is slidably connected to the side plate (5), and a round hole (20) is provided in the round rod (6), and a plug rod (7) is inserted at the top of the side plate (5), and the bottom of the plug rod (7) extends into the round hole (20), and a squeeze plate (15) is fixedly connected to the side of the round rod (6), and the squeeze plate (15) is arranged on the side of the second vertical plate (3).

2. A rainproof roof fan according to claim 1, characterized in that: A through groove (16) is provided in the first vertical plate (2), a circular ring (12) is fixedly connected to the side surface of the first vertical plate (2), an annular groove (18) is provided on the inner wall of the circular ring (12), and a winding rod (17) is arranged in the circular ring (12).

3. A rainproof roof fan according to claim 2, characterized in that: The outside of the winding rod (17) is fixedly connected to a limiting plate (19), the limiting plate (19) extends into the annular groove (18) and is rotatably connected to the annular groove (18), and a rainproof curtain (4) is wound around the surface of the winding rod (17).

4. A rainproof roof fan according to claim 3, characterized in that: A second magnet (10) is fixedly connected to the side of the rainproof curtain (4), and the second magnet (10) extends into the side groove (8). The magnetic poles of the second magnet (10) and the first magnet (9) are opposite to each other.

5. A rainproof roof fan according to claim 2, characterized in that: A side plate (13) is fixedly connected to the side surface of the winding rod (17), a friction ball (14) is fixedly connected to the outer surface of the side plate (13), and the surface of the friction ball (14) is provided with anti-slip grooves.

6. A rainproof roof fan according to claim 3, characterized in that: A plurality of water tanks distributed at equal intervals are provided in the rainproof curtain (4), and the sizes of the plurality of water tanks are the same. The rainproof curtain (4) is arranged on the top of the fan body (11).

7. A rainproof roof fan according to claim 1, characterized in that: A plurality of the circular holes (20) are provided, and the plurality of the circular holes (20) are evenly distributed on the surface of the round rod (6), and the plurality of the circular holes (20) have the same size.

8. A rainproof roof fan according to claim 2, characterized in that: The winding rod (17) is cylindrical in shape and is made of stainless steel.

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