Roof fan

Abstract

The roof fan comprises a mounting plate, a rain cover, a driving piece and a fan blade piece, a through cylinder is arranged on the bottom side of the mounting plate, an inner cavity of the through cylinder is communicated with the upper side and the lower side of the mounting plate, an annular first blocking piece part is arranged on the top side of the mounting plate, a cylinder opening in the top end of the through cylinder is located on the inner side of the first blocking piece part, and the rain cover is arranged on the top side of the mounting plate. The driving piece is arranged on the top side of the mounting plate and located below the rain cover, the fan blade piece is arranged on the driving piece, the fan blade piece is arranged opposite to a top end barrel opening of the through barrel, the driving piece can drive the fan blade piece to rotate, an annular second blocking piece part is arranged at the bottom of the fan blade piece, and the second blocking piece part is arranged on the first blocking piece part in a sleeving mode; or the first separation blade part is sleeved on the second separation blade part. By means of the structure, the first blocking piece part can prevent rainwater from entering the through cylinder through the gap between the fan blade piece and the mounting plate, so that the probability of roof water leakage can be reduced.

Description

Technical Field

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

[0002] Roof fans, also known as roof ventilators, are commonly referred to as Figure 5 Some roof fans include a mounting plate and a driving member disposed on the mounting plate, the driving member being connected to a fan blade member, wherein the mounting plate is used to be mounted on the top of a building, the mounting plate is provided with a through tube connecting the indoor and outdoor areas of the building, the fan blade member is located outdoors and is arranged opposite to the top end of the through tube, and the driving member can drive the fan blade member to rotate to drive the indoor air of the building to pass through the through tube and then be discharged to the outdoors. In order to adapt to the use scenario on rainy days, the roof fan is equipped with a rain shield to prevent rainwater from entering the room through the through tube as much as possible. However, in actual use, some rainwater will still enter the through tube through the gap a between the fan blade member and the mounting plate, resulting in roof leakage. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a roof fan which can prevent rainwater from entering the through-tube through the gap between the fan blade and the mounting plate, so as to reduce the probability of roof leakage.

[0004] A roof fan according to an embodiment of the utility model comprises a mounting plate, a rain shield, a driving member and a fan blade member, a through cylinder is provided on the bottom side of the mounting plate, an inner cavity of the through cylinder is connected to the upper and lower sides of the mounting plate, a first annular baffle portion is provided on the top side of the mounting plate, a top end tube mouth of the through cylinder is located on the inner side of the first baffle portion, the rain shield is provided on the top side of the mounting plate, the driving member is provided on the top side of the mounting plate and is located below the rain shield, the fan blade member is provided on the driving member, the fan blade member and the top end tube mouth of the through cylinder are arranged opposite to each other, the driving member can drive the fan blade member to rotate, a second annular baffle portion is provided on the bottom of the fan blade member, wherein the second baffle portion is sleeved on the first baffle portion; or, the first baffle portion is sleeved on the second baffle portion.

[0005] A roof fan according to an embodiment of the utility model has at least one of the following beneficial effects:

[0006] In the embodiment of the utility model, the second baffle portion of the roof fan is sleeved on the first baffle portion; or, the first baffle portion is sleeved on the second baffle portion.

[0007] For this structure, refer to Figure 2The first baffle portion blocks the gap between the fan blade member and the mounting plate, that is, the first baffle portion can prevent rainwater from entering the through-tube through the gap between the fan blade member and the mounting plate, so as to reduce the probability of roof leakage.

[0008] According to some embodiments of the utility model, the fan blade component includes a top piece and a bottom piece that are relatively arranged, and a plurality of fan blade components connected between the top piece and the bottom piece, a sleeve portion is provided on the bottom side of the top piece, and the top piece is sleeved on the driving member through the sleeve portion, and the driving member can drive the top piece to rotate to drive the fan blade component to rotate, a plurality of the fan blade components are arranged in a ring around the driving member, and the second baffle portion is provided on the bottom side of the bottom piece.

[0009] According to some embodiments of the present invention, the inner cavity of the second blocking piece portion is connected to the upper and lower sides of the bottom piece.

[0010] According to some embodiments of the present invention, a container frame is detachably provided on the top side of the mounting plate, and the rain shield and the driving member are both provided on the container frame.

[0011] According to some embodiments of the present invention, the rain shield and the driving member are both detachably mounted on the container frame.

[0012] According to some embodiments of the present utility model, the container is provided with a containing box for placing the power supply device, and the containing box is located below the rain shield.

[0013] According to some embodiments of the utility model, an annular protective net is provided on the top side of the mounting plate, and the fan blade member is located on the inner side of the protective net.

[0014] According to some embodiments of the present invention, the protective net and the driving member are both located on the inner side of the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 This is a structural diagram of an embodiment of the roof fan of the utility model;

[0017] Figure 2 for Figure 1 A cross-sectional view of a roof fan shown in ;

[0018] Figure 3 for Figure 1 A partial exploded view of a roof fan shown in;

[0019] Figure 4 for Figure 2A partial exploded view of the drive member and the fan blade member shown in FIG.

[0020] Figure 5 It is a simplified cross-sectional view of a roof fan in the prior art.

[0021] Reference numerals:

[0022] The mounting plate 100, the through cylinder 110, the first blocking piece 120, the first hole 130, and the seventh hole 140;

[0023] Rain shield 200, support arm 210, third hole 211;

[0024] A driving member 300 and a fifth hole 310;

[0025] The fan blade member 400, the top piece member 410, the sleeve portion 411, the bottom piece member 420, the second blocking piece portion 421, and the fan blade member 430;

[0026] Pallet 500, second hole 510, fourth hole 520, sixth hole 530;

[0027] Accommodation box 600;

[0028] Protection net 700 and eighth hole 710 . DETAILED DESCRIPTION

[0029] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0030] In the description of the utility model, if there is a description of first, second, third, fourth, fifth, etc., it is only for the purpose of distinguishing the technical features and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0033] Reference Figures 1 to 4 The utility model embodiment provides a roof fan, which includes a mounting plate 100, a rain shield 200, a driving member 300 and a fan blade member 400.

[0034] A through cylinder 110 is provided on the bottom side of the mounting plate 100, and the inner cavity of the through cylinder 110 is connected to the upper and lower sides of the mounting plate 100. A first annular baffle portion 120 is provided on the top side of the mounting plate 100, and the top end tube mouth of the through cylinder 110 is located on the inner side of the first baffle portion 120. The rain shield is provided on the top side of the mounting plate 100, and the driving member 300 is provided on the top side of the mounting plate 100 and is located below the rain shield 200. The fan blade member 400 is provided on the driving member 300, and the fan blade member 400 is arranged opposite to the top end tube mouth of the through cylinder 110. The driving member 300 can drive the fan blade member 400 to rotate. An annular second baffle portion 421 is provided at the bottom of the fan blade member 400, wherein the second baffle portion 421 is sleeved on the first baffle portion 120.

[0035] It can be understood that, in this embodiment, referring to Figure 2 The gap a between the fan blade 400 and the mounting plate 100 is the gap between the second baffle portion 421 and the mounting plate 100.

[0036] Through the above structure, on the one hand, the first baffle portion 120 blocks the gap a between the fan blade 400 and the mounting plate 100, that is, the first baffle portion 120 can prevent rainwater from entering the tube 110 through the gap a between the fan blade 400 and the mounting plate 100, so as to reduce the probability of roof leakage; on the other hand, the second baffle portion 421 is sleeved on the first baffle portion 120, that is, the first baffle portion 120 and the second baffle portion 421 are arranged inside and outside, so that rainwater on the second baffle portion 421 can flow to the outside of the first baffle portion 120, so as to prevent rainwater on the second baffle portion 421 from entering the room through the tube 110.

[0037] In some embodiments, under the premise of ensuring that rainwater does not fall onto the second baffle portion 421 , the manufacturer can sleeve the first baffle portion 120 on the second baffle portion 421 , that is, the second baffle portion 421 and the first baffle portion 120 are arranged inside and outside.

[0038] In this embodiment, refer to Figure 2 , Figure 3 as well as Figure 4 The fan blade member 400 includes a top piece 410 and a bottom piece 420 that are arranged opposite to each other, and a plurality of fan blade members 430 connected between the top piece 410 and the bottom piece 420. A sleeve portion 411 is provided at the bottom side of the top piece 410. The top piece 410 is sleeved on the driving member 300 through the sleeve portion 411. The driving member 300 can drive the top piece 410 to rotate to drive the fan blade member 400 to rotate. The plurality of fan blade members 430 are arranged around the peripheral side of the driving member 300. The bottom side of the bottom piece 420 is provided with the second baffle portion 421. The driving member 300 is configured as an outer rotor motor, and the top piece 410 is sleeved on the outer rotor part of the driving member 300 through the sleeve portion 411.

[0039] It can be understood that the plurality of fan-blade elements 430 is at least three fan-blade elements 430 .

[0040] According to the above structure, the top piece 410 is mounted on the driving member 300 through the sleeve portion 411 on the bottom side, and a plurality of fan blade pieces 430 are arranged around the peripheral side of the driving member 300. It can be seen that the fan blade assembly composed of the fan blade piece 400 and the driving member 300 has a compact structure and occupies a small space.

[0041] In this embodiment, refer to Figure 2 and Figure 4 The inner cavity of the second blocking piece 421 is connected to the upper and lower sides of the bottom piece 420 .

[0042] Through the above structure, the air discharged through the through tube 110 can flow in sequence through the first baffle portion 120, the second baffle portion 421, the space between the top piece 410 and the bottom piece 420, and the gap between two adjacent fan pieces 430, so as to take away the heat generated by the driving member 300 during operation and reduce the probability of overheating failure of the driving member 300.

[0043] In this embodiment, refer to Figures 1 to 3 A container frame 500 is detachably provided on the top side of the mounting plate 100 , and the rain shield 200 and the driving member 300 are both provided on the container frame 500 .

[0044] Through the above structure, the manufacturer can disassemble the container 500 on the mounting plate 100, and can simultaneously disassemble the rain shield 200 and the driving member 300 on the mounting plate 100. Similarly, the manufacturer can install the container 500 equipped with the rain shield 200 and the driving member 300 on the mounting plate 100, and can simultaneously install the container 500, the rain shield 200 and the driving member 300 on the mounting plate 100.

[0045] The top side of the mounting plate 100 is detachably provided with a mounting frame 500. For details, refer to Figure 1 and Figure 3 The mounting plate 100 is provided with a first hole 130, and the container rack 500 is provided with a second hole 510. A bolt and nut assembly (not shown in the figure) passes through the first hole 130 and the second hole 510. Among them, both the first hole 130 and the second hole 510 are through-hole structures.

[0046] In this embodiment, referring to Figure 2 and Figure 3 the rain shield 200 and the driving member 300 are detachably provided on the container rack 500.

[0047] With the above structure, both the rain shield 200 and the driving member 300 can be detached from the container rack 500, so as to facilitate the later maintenance work of the rain shield 200 and the driving member 300.

[0048] The rain shield 200 is detachably provided on the container rack 500. Specifically, referring to Figure 2 and Figure 3 the rain shield 200 is provided with a support arm 210, the support arm 210 is provided with a third hole 211, the container rack 500 is provided with a fourth hole 520, and a bolt and nut assembly (not shown in the figure) passes through the third hole 211 and the fourth hole 520. Among them, both the third hole 211 and the fourth hole 520 are through-hole structures.

[0049] The driving member 300 is detachably provided on the container rack 500. Specifically, referring to Figure 2 and Figure 3 the driving member 300 is provided with a fifth hole 310, the container rack 500 is provided with a sixth hole 530, and a bolt (not shown in the figure) passes through the fifth hole 310 and the sixth hole 530. Among them, the fifth hole 310 is a threaded hole structure, and the sixth hole 530 is a through-hole structure.

[0050] In this embodiment, referring to Figure 2 and Figure 3 the container rack 500 is provided with a storage box 600 for placing electrical components, and the storage box 600 is located below the rain shield 200. Among them, the electrical components can be a control module, a power supply component, etc.

[0051] In order to reduce the probability of animals such as mice and birds colliding with the fan blade member 400, referring to Figure 1 and Figure 2 the top side of the mounting plate 100 is provided with an annular protective net 700, and the fan blade member 400 is located inside the protective net 700.

[0052] The top side of the mounting plate 100 is provided with an annular protective net 700. Specifically, referring to Figure 1 and Figure 3The mounting plate 100 is provided with a seventh hole 140, the protection net 700 is provided with an eighth hole 710, and bolt and nut assemblies (not shown in the figure) are passed through the seventh hole 140 and the eighth hole 710. The seventh hole 140 and the eighth hole 710 are both through-hole structures.

[0053] Through the above structure, the protective net 700 is detachably connected to the mounting plate 100, so as to facilitate the later disassembly and cleaning of the protective net 700.

[0054] In this embodiment, refer to Figure 1 and Figure 2 The protective net 700 and the driving member 300 are both located on the inner side of the container 500 .

[0055] Through the above structure, on the one hand, the protective net 700 and the driving member 300 are both located on the inner side of the container 500, and the container 500 can provide a certain degree of protection for the protective net 700 and the driving member 300; on the other hand, the protective net 700 and the driving member 300 are both located on the inner side of the container 500, which can make the structure of the overall roof fan more compact, and the transportation space occupied by the overall roof fan is smaller, thereby reducing the transportation cost accordingly.

[0056] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A roof fan, characterized in that: include A mounting plate (100) is provided with a through tube (110) at the bottom, the inner cavity of the through tube (110) is connected to the upper and lower sides of the mounting plate (100), and an annular first baffle portion (120) is provided at the top side of the mounting plate (100), and the top end of the through tube (110) is located on the inner side of the first baffle portion (120); A rain shield (200) is arranged on the top side of the mounting plate (100); A driving member (300) is disposed on the top side of the mounting plate (100) and is located below the rain shield (200); A fan blade member (400), the fan blade member (400) is arranged on the driving member (300), the fan blade member (400) is arranged opposite to the top end of the through tube (110), the driving member (300) can drive the fan blade member (400) to rotate, and a second annular baffle portion (421) is provided at the bottom of the fan blade member (400), wherein: The second baffle portion (421) is sleeved on the first baffle portion (120); or the first baffle portion (120) is sleeved on the second baffle portion (421).

2. A roof fan according to claim 1, characterized in that: The fan blade component (400) includes a top piece (410) and a bottom piece (420) that are arranged opposite to each other, and a plurality of fan blade components (430) connected between the top piece (410) and the bottom piece (420). A sleeve portion (411) is provided on the bottom side of the top piece (410). The top piece (410) is sleeved on the driving component (300) through the sleeve portion (411). The driving component (300) can drive the top piece (410) to rotate to drive the fan blade component (400) to rotate. The plurality of fan blade components (430) are arranged around the peripheral side of the driving component (300). The second blocking piece portion (421) is provided on the bottom side of the bottom piece (420).

3. A roof fan according to claim 2, characterized in that: The inner cavity of the second blocking piece portion (421) is in communication with the upper and lower sides of the bottom piece (420).

4. A roof fan according to claim 1, characterized in that: A container frame (500) is detachably provided on the top side of the mounting plate (100), and the rain shield (200) and the driving member (300) are both arranged on the container frame (500).

5. A roof fan according to claim 4, characterized in that: The rain shield (200) and the driving member (300) are both detachably mounted on the assembly frame (500).

6. A roof fan according to claim 4, characterized in that: The assembly rack (500) is provided with a receiving box (600) for accommodating a power supply device, and the receiving box (600) is located below the rain shield (200).

7. A roof fan according to claim 4, characterized in that: An annular protective net (700) is provided on the top side of the mounting plate (100), and the fan blade member (400) is located on the inner side of the protective net (700).

8. A roof fan according to claim 7, characterized in that: The protective net (700) and the driving member (300) are both located on the inner side of the container frame (500).

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