Exhaust fan

Abstract

The utility model discloses an exhaust fan, which comprises a fixing part, a first mounting surface, a second mounting surface, a second mounting surface, an air inlet, an air outlet, an air outlet, an air outlet and an air outlet, and is characterized in that the fixing part extends from the first mounting surface to the second mounting surface along the thickness direction and is provided with a mounting port along the thickness direction, and the mounting port penetrates the first mounting surface and the second mounting surface; the base comprises a connecting part and a hollow cylinder part, the connecting part is formed by outwards extending from the outer wall of the cylinder part in the radial direction, the cylinder part can be arranged in the mounting opening in a penetrating mode, and the connecting part is connected with the first mounting face; the pressing piece is connected with the second mounting surface, and the connecting distance between the pressing piece and the second mounting surface can be adjusted; the fan unit is mounted in the barrel part; the exhaust fan can be quickly assembled and disassembled from the glass plate through cooperation of the fixing piece and the pressing piece, the overall structure is simple, assembling and disassembling are convenient, and operation such as gluing is not needed.

Description

Technical Field

[0001] The utility model relates to exhaust equipment, in particular to an exhaust fan. Background Art

[0002] An exhaust fan is a device used for air circulation and ventilation, often installed in bathrooms, where it exhausts indoor air to the outside. The exhaust fan is installed in the fixed glass window area. Installation involves drilling a circular hole in the glass, inserting the exhaust fan through the hole in the window glass in the correct direction, and then inserting a collar from the rear of the fan and pressing it against the glass. Existing exhaust fans typically require applying a suitable amount of glass glue to the surface where the fan body contacts the glass to ensure a secure fit. This installation method is not only cumbersome but also inconvenient for removing the fan from the glass for later maintenance. Utility Model Content

[0003] The present invention aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. To this end, the present invention provides an exhaust fan.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] According to the first embodiment of the present invention, the exhaust fan comprises:

[0006] a fixing member extending from the first mounting surface to the second mounting surface along the thickness direction, and the fixing member is provided with a mounting opening along the thickness direction, the mounting opening passing through the first mounting surface and the second mounting surface;

[0007] a base, the base comprising a connecting portion and a hollow cylindrical portion, the connecting portion extending radially outward from an outer wall of the cylindrical portion, the cylindrical portion being capable of being inserted into the mounting opening, the connecting portion being interconnected with the first mounting surface;

[0008] a pressing member connected to the second mounting surface and capable of adjusting a connection distance between the pressing member and the second mounting surface;

[0009] The fan unit is installed in the cylinder.

[0010] The exhaust fan according to the embodiment of the present invention has at least the following beneficial effects: the exhaust fan can be quickly assembled and disassembled from the glass plate by using the combination of the fixing parts and the pressing parts. The overall structure is simple, the assembly and disassembly are convenient, and no operations such as gluing are required.

[0011] According to some embodiments of the present invention, a plurality of buckles are provided on the first mounting surface, a plurality of latching positions are provided on the connecting portion, and the first mounting surface and the connecting portion are coupled together by the buckles and the latching positions.

[0012] According to some embodiments of the present invention, the side surface of the connecting portion is in contact with the first mounting surface.

[0013] According to some embodiments of the present invention, the pressing piece and the second mounting surface are connected by screws.

[0014] According to some embodiments of the present invention, a mounting hole is provided on the fixing member, a limit platform is provided on one side of the mounting hole, the screw is passed through the mounting hole and is threadedly connected to the pressing member, and the limit platform can limit the pressing member from rotating with the screw.

[0015] According to some embodiments of the present invention, the mounting holes are arranged in a countersunk shape along the thickness direction of the fixing member from the first mounting surface toward the second mounting surface, and a plurality of the mounting holes are distributed in sequence along the periphery of the mounting opening.

[0016] According to some embodiments of the present invention, the fan assembly includes fan blades and a first motor, and the first motor can drive the fan blades to rotate forward and reverse.

[0017] According to some embodiments of the present invention, a blade group and a drive group are further included, wherein the blade group includes a plurality of blades, each of which is hinged to the end of the cylinder in turn, and the drive group drives each of the blades to flip between a first position and a second position relative to the cylinder. When each of the blades flips to the first position, each of the blades is stacked in turn and seals the end of the cylinder; when each of the blades flips to the second position, a gap is formed between each of the blades.

[0018] According to some embodiments of the present invention, the drive group includes a second motor and a drive rod, the drive rod is hinged to each of the blades, and the second motor drives the drive rod to move to drive each of the blades to flip.

[0019] According to some embodiments of the present invention, a convex edge is extended radially inward from the inner wall of the end portion of the cylinder, and when the blade is flipped to the first position, the edge of the blade can be placed on the convex edge.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a schematic diagram of the structure decomposition of the utility model;

[0023] Figure 2 It is a structural diagram of the exhaust fan;

[0024] Figure 3 It is a structural diagram of the fixing parts;

[0025] Figure 4 yes Figure 3 Schematic diagram from another perspective;

[0026] Figure 5 It is a structural diagram of the base;

[0027] Figure 6 yes Figure 5 Schematic diagram from another perspective;

[0028] Figure 7 It is a structural diagram of the blade group and the drive group;

[0029] Figure 8 This is a schematic diagram of the exhaust fan installation status.

[0030] Figure numerals: fixing member 100; first mounting surface 110; buckle 111; second mounting surface 120; mounting opening 130; mounting hole 140; limit platform 150; base 200; connecting portion 210; latching position 211; cylinder 220; flange 221; pressing member 300; fan assembly 400; fan blade 410; first motor 420; screw 500; blade assembly 600; blade 610; drive assembly 700; second motor 710; drive rod 720; glass plate 800; hole position 810. DETAILED DESCRIPTION

[0031] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] The utility model relates to an exhaust fan, which comprises a fixing member 100, a base 200, a pressing member 300 and a fan unit 400.

[0033] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, the fixing member 100 can be a plate-like structure, and the fixing member 100 extends from the first mounting surface 110 to the second mounting surface 120 along the thickness direction. The fixing member 100 is provided with a mounting opening 130 along the thickness direction. The mounting opening 130 passes through the first mounting surface 110 and the second mounting surface 120. In this embodiment, the fixing member 100 is in the shape of an annular plate, and the mounting opening 130 is a circular through hole. The base 200 includes a connecting portion 210 and a barrel 220. The interior of the barrel 220 is hollow, and the interior of the barrel 220 is used to install the first motor 420 group and the electronic control module. The outer contour shape of the barrel 220 is adapted to the shape of the mounting opening 130. The mounting opening 130 is in the shape of a circular through hole, and correspondingly, the barrel 220 is cylindrical. The outer diameter of the barrel 220 is smaller than the inner diameter of the mounting opening 130, and the maximum outer diameter of the connecting portion 210 is larger than the inner diameter of the mounting opening 130. The connecting portion 210 extends radially outward from the outer wall of the barrel 220 in a plate-like shape. The barrel 220 can be coaxially inserted into the mounting opening 130, and one side surface of the connecting portion 210 faces the first mounting surface 110. The connecting portion 210 and the first mounting surface 110 can be connected by screw locking, buckling, etc. The side surface of the connecting portion 210 and the first mounting surface 110 can fit each other. The pressing piece 300 can be a metal block structure. The pressing piece 300 and the second mounting surface 120 can be connected by connecting pieces such as screws 500. The pressing piece 300 is connected to the second mounting surface 120, and there is a certain connection spacing according to the relative position of the connection between the pressing piece 300 and the second mounting surface 120, and the connection spacing is adjustable. One or more pressing pieces 300 can be provided to connect to the second mounting surface 120.

[0034] In actual use, such as Figure 8As shown, the exhaust fan is mounted on a glass plate 800. A hole is formed in the glass plate 800. The inner diameter of the hole 810 on the glass plate 800 is larger than the outer diameter of the cylindrical portion 220 and smaller than the outer diameter of the fixing member 100. During installation, the fixing member 100 is placed on one side of the glass plate 800, with the second mounting surface 120 facing the glass plate 800 and the mounting opening 130 coaxially or nearly coaxially aligned with the hole 810 on the glass plate 800. A pressing member 300 is placed on the other side of the glass plate 800. A connecting member between the pressing member 300 and the second mounting surface 120 passes through the hole 810 on the glass plate 800, connecting the pressing member 300 and the second mounting surface 120. The connecting member is used to minimize the gap between the second mounting surface 120 and the pressing member 300, so that the periphery of the hole 810 is clamped between the pressing member 300 and the second mounting surface 120, thereby securing the fixing member 100 to the glass plate 800. The cylindrical portion 220 of the base 200 is then mounted on the opening 130, and the base 200 is secured to the first mounting surface 110 via the connecting portion 210. The base 200 is then mounted to the glass plate 800 via the fixing member 100, completing the installation of the exhaust fan on the glass plate 800. To disassemble the exhaust fan, simply remove the pressing member 300 from the second mounting surface 120, releasing the grip on the glass plate 800. The exhaust fan can then be removed from the glass plate 800. The overall structure is simple, making assembly and disassembly easy, and no gluing or other operations are required. A fan hood can be mounted on the side of the connecting portion 210 facing away from the first mounting surface 110.

[0035] In some specific embodiments of the present invention, Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the first mounting surface 110 is provided with a plurality of latches 111, which are in the shape of barbs. The connecting portion 210 is provided with a plurality of latching positions 211, which are matched in number and position with the latches 111. The first mounting surface 110 and the connecting portion 210 are interlocked with each other through the latches 111 and the latching positions 211 to achieve a quick connection. Furthermore, after the connecting portion 210 and the first mounting surface 110 are connected, the side of the connecting portion 210 facing the first mounting surface 110 is in contact with the first mounting surface 110. The second mounting surface 120 is in contact with the glass plate 800, and the connecting portion 210 is in contact with the first mounting surface 110. The connecting portion 210 extends from the outer wall of the barrel 220 and surrounds the barrel 220. At this time, the connecting portion 210 and the fixing member 100 can block the hole 810 on the glass plate 800.

[0036] In some embodiments of the present invention, Figure 2 、 Figure 4 and Figure 8As shown, the pressing piece 300 and the second mounting surface 120 are connected by a screw 500. Specifically, a mounting hole 140 is provided on the fixing seat. A limit platform 150 extends from one side of the mounting hole 140, and the limit platform 150 can be in the shape of a convex column. During installation, the limit platform 150 passes through the hole 810 of the glass plate 800, and the head of the screw 500 abuts against the mounting hole 140. The threaded section of the screw 500 passes through the mounting hole 140 and the hole 810 of the glass plate 800, and then the threaded section is threadedly connected to the pressing piece 300. When the screw 500 is rotated, the pressing piece 300 will initially rotate with the screw 500 until the pressing piece 300 rotates and abuts against the limit platform 150. The limit platform 150 restricts the pressing piece 300 from continuing to rotate with the screw 500, causing the screw 500 to rotate relative to the pressing piece 300, thereby gradually locking or loosening the pressing piece 300 relative to the second mounting surface 120. The mounting holes 140 may be arranged in a countersunk shape along the thickness direction of the fixing member 100 from the first mounting surface 110 toward the second mounting surface 120, with the heads of the screws 500 located in the mounting holes 140. A plurality of mounting holes 140 are sequentially distributed along the periphery of the mounting opening 130. Each mounting hole 140 is connected to a corresponding pressing member 300.

[0037] In some specific embodiments of the present invention, Figure 1 As shown, the fan assembly 400 includes blades 410 and a first motor 420. The first motor 420 is a forward and reverse motor 420 that can drive the blades 410 in both forward and reverse rotations. When the first motor 420 rotates forward, the blades 410 rotate to draw air from the inner side of the glass plate 800 outward. When the first motor 420 rotates reversely, the blades 410 rotate to draw air from the outer side of the glass plate 800 inward. In this way, the exhaust fan can extract air from the current installation environment and discharge it outward, or draw external air inward, thereby achieving a two-way ventilation effect.

[0038] In some specific embodiments of the present invention, Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 and Figure 7As shown, it also includes a blade group 600 and a drive group 700. The blade group 600 includes a plurality of blades 610. The blade group 600 is a shutter structure. Each blade 610 is hinged to the end of the cylinder 220 in turn through a rotating shaft. The drive group 700 drives each blade 610 to flip between the first position and the second position relative to the cylinder 220. When the fan group 400 is not started, the drive group 700 drives each blade 610 to flip to the first position. At this time, each blade 610 is stacked in sequence and blocks the end of the cylinder 220, thereby shutting off the inside and outside of the exhaust fan. When the fan group 400 is started, the drive group 700 drives each blade 610 to flip to the second position, and a gap is formed between each blade 610, and the airflow flows through the gap between each blade 610. In this way, the drive group 700 is used to directly control the opening and closing of the blade group 600. Specifically, as shown in FIG. Figure 6 and Figure 7 As shown, the drive group 700 includes a second motor 710 and a drive rod 720. The second motor 710 can optionally use the shaded pole first motor 420. The drive rod 720 is hinged to each blade 610. The drive rod 720 can extend a rotating shaft, and the drive rod 720 is hinged to the blade 610 through the rotating shaft. A U-shaped groove is provided on the drive rod 720, and the drive shaft of the second motor 710 is slidably connected to the U-shaped groove. Furthermore, a convex edge 221 is extended radially inward from the inner wall of the end of the barrel 220. When the blade 610 flips to the first position, the edge of the blade 610 can be placed on the convex edge 221. The convex edge 221 can limit the stroke of the blade 610 flipping to the first position, and at the same time, the edge of the blade 610 is overlapped with the convex edge 221 to improve the sealing degree of the end of the barrel 220.

[0039] Throughout this specification, references to "some specific embodiments" and the like indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0040] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An exhaust fan, characterized in that: include: A fixing member (100) extending from a first mounting surface (110) to a second mounting surface (120) along a thickness direction, and the fixing member (100) is provided with a mounting opening (130) along the thickness direction, the mounting opening (130) penetrating the first mounting surface (110) and the second mounting surface (120); A base (200), the base (200) comprising a connecting portion (210) and a hollow cylindrical portion (220), the connecting portion (210) extending radially outward from an outer wall of the cylindrical portion (220), the cylindrical portion (220) being capable of being inserted into the mounting opening (130), and the connecting portion (210) being connected to the first mounting surface (110); a pressing piece (300), the pressing piece (300) being connected to the second mounting surface (120) and capable of adjusting a connection distance between the pressing piece (300) and the second mounting surface (120); The fan unit (400) is installed in the cylinder (220).

2. The exhaust fan according to claim 1, wherein: The first mounting surface (110) is provided with a plurality of buckles (111), the connecting portion (210) is provided with a plurality of latching positions (211), and the first mounting surface (110) and the connecting portion (210) are coupled and fastened via the buckles (111) and the latching positions (211).

3. The exhaust fan according to claim 1, wherein: The side surface of the connecting portion (210) and the first mounting surface (110) are in contact with each other.

4. The exhaust fan according to claim 1, wherein: The pressing piece (300) and the second mounting surface (120) are connected via screws (500).

5. The exhaust fan according to claim 4, characterized in that: The fixing member (100) is provided with a mounting hole (140), a limiting platform (150) is provided on one side of the mounting hole (140), the screw (500) is passed through the mounting hole (140) and is threadedly connected to the pressing member (300), and the limiting platform (150) can limit the pressing member (300) from rotating along with the screw (500).

6. The exhaust fan according to claim 5, characterized in that: The mounting holes (140) are arranged in a countersunk shape along the thickness direction of the fixing member (100) from the first mounting surface (110) toward the second mounting surface (120), and a plurality of the mounting holes (140) are sequentially distributed along the periphery of the mounting opening (130).

7. The exhaust fan according to claim 1, wherein: The fan assembly (400) comprises fan blades (410) and a first motor (420), wherein the first motor (420) is capable of driving the fan blades (410) to rotate forward and reverse.

8. The exhaust fan according to claim 1, wherein: The invention also includes a blade group (600) and a drive group (700), wherein the blade group (600) includes a plurality of blades (610), each of the blades (610) being hinged to the end of the cylinder (220) in sequence, and the drive group (700) driving each of the blades (610) to flip between a first position and a second position relative to the cylinder (220); when each of the blades (610) flips to the first position, each of the blades (610) is stacked in sequence and blocks the end of the cylinder (220); when each of the blades (610) flips to the second position, a gap is formed between each of the blades (610).

9. The exhaust fan according to claim 8, characterized in that: The driving group (700) comprises a second motor (710) and a driving rod (720), wherein the driving rod (720) is hinged to each of the blades (610), and the second motor (710) drives the driving rod (720) to move so as to drive each of the blades (610) to flip.

10. The exhaust fan according to claim 8, characterized in that: A convex edge (221) extends radially inward from the inner wall of the end portion of the cylinder (220), and when the blade (610) flips to the first position, the edge of the blade (610) can rest on the convex edge (221).

Images