Folding ventilation device

Abstract

The utility model provides a folding ventilation device which comprises a base frame and a ventilation cover, a base frame channel penetrating through the base frame is arranged in the base frame, the ventilation cover is located on the upper side of the base frame and can turn over and move to an opening position or a closing position relative to the base frame, and a cover body edge located outside one side of the base frame is arranged on the ventilation cover. A ventilation port located on one side of the base frame and used for being communicated with the base frame channel is formed between the edge of the cover body and the base frame, when the ventilation cover is located at the closing position, the ventilation cover covers the base frame, and when the ventilation cover is located at the opening position, the base frame channel, an inner cavity of the ventilation cover and the ventilation port form a ventilation path. And a folding grid which is positioned on one side of the base frame, is connected between the ventilation cover and the base frame and can be folded or unfolded along with the turnover of the ventilation cover is arranged at the ventilation port. The folding ventilation device can be normally opened for ventilation in rainy days.

Description

[Technical field]

[0001] The present application relates to the field of ventilation devices, and in particular to a foldable ventilation device. [Background technology]

[0002] In recreational transportation equipment such as RVs, a ventilation device is generally provided on the top to introduce fresh air from the outside into the interior space of the RV, and to discharge the dirty air and odor inside, thereby enhancing the air circulation, which can effectively improve the air quality of the interior space of the RV or yacht and improve the user experience. The existing vehicle-mounted folding ventilation and air exchange device generally includes a base frame for installation on the roof for ventilation and air exchange in the vehicle, and a ventilation cover that can be flipped relative to the base frame and used to close or open the base frame. A ventilation fan can generally be installed on the base frame, and when the ventilation cover is opened relative to the base frame, the outside world can be connected to the base frame to ventilate the vehicle. However, when the ventilation cover of the existing vehicle-mounted folding ventilation device is opened relative to the base frame for ventilation, rainwater will flow into the interior of the RV when it rains. At this time, in order to prevent rainwater from entering, the ventilation cover can only be closed, which makes it inconvenient for the existing vehicle-mounted folding ventilation device to perform normal ventilation when it rains, affecting its use. [Contents of the utility model]

[0003] In order to ensure that the foldable ventilation device can perform normal ventilation in rainy scenes, the present application provides a foldable ventilation device.

[0004] This application is implemented by the following technical solutions:

[0005] A foldable ventilation and air exchange device comprises a base frame and a ventilation cover, wherein the base frame is provided with a base frame channel penetrating the base frame, the ventilation cover is located on the upper side of the base frame and can be flipped and moved relative to the base frame to an open position or a closed position, the ventilation cover is provided with a cover body edge located outside one side of the base frame, a ventilation port located on one side of the base frame and used to communicate with the base frame channel is formed between the cover body edge and the base frame, the base frame channel, the inner cavity of the ventilation cover and the ventilation port form a ventilation path, and the ventilation path is provided with a folding grille located on one side of the base frame and connected between the ventilation cover and the base frame and can be folded or unfolded as the ventilation cover is flipped.

[0006] As described above, the folding ventilation device, the folding grille includes a first grille member and a second grille member, one end of the first grille member is hinged to one end of the second grille member, the other end of the first grille member is hinged to the ventilation cover, and the other end of the second grille member is hinged to the base frame.

[0007] As described above, in the folding ventilation device, when the ventilation cover is in the open position, the first grille member and the second grille member are arranged coplanarly; when the ventilation cover is in the closed position, an angle α is formed between the first grille member and the second grille member, and the angle α is greater than 0° and less than 90°.

[0008] As described above, the folding ventilation device has a grille bracket on the ventilation cover at the ventilation port, the first grille member is hinged to the ventilation cover by being hinged to the grille bracket, and the hinge portion between the first grille member and the second grille member is arranged on the grille bracket.

[0009] As described above, in the folding ventilation device, a flip linkage mechanism is provided between the ventilation cover and the base frame for driving the ventilation cover to flip relative to the base frame.

[0010] As described above in the folding ventilation device, the outer peripheral side of the ventilation cover is provided with a shielding convex edge extending in a direction close to the base frame.

[0011] In the foldable ventilation device as described above, the base frame and the ventilation cover are hingedly connected by a hinge, and the hinge is located on a side of the base frame away from the ventilation port.

[0012] As described above, in the folding ventilation device, a positioning convex edge is provided on the outer peripheral side of the base frame, and the hinge is provided on the positioning convex edge.

[0013] Compared with the prior art, this application has the following advantages:

[0014] 1. The folding ventilation device of the utility model is connected to the base frame and the ventilation cover through a folding grille, so that the turning height and angle of the ventilation cover are restricted by the folding grille. When the ventilation cover is opened, it can be turned to a reasonable height that can ensure the ventilation effect without causing the ventilation cover to turn too high. In this way, the turning height and angle of the ventilation cover are not large, and the ventilation cover can play a good rain-shielding role when it rains, preventing rainwater from entering the car, and ensuring that the ventilation effect meets the use requirements. At the same time, it will not increase the wind resistance of the RV during driving, reduce the possibility of damage to the ventilation cover, and also facilitate the RV to pass through height-restricted sections.

[0015] 2. After the folding ventilation device of the utility model is installed on the roof, the folding grille connected between the ventilation cover and the base frame can ensure that when the ventilation cover is flipped to open the ventilation port, the folding grille will not move away from the roof with the movement of the ventilation cover, which can effectively prevent foreign matter from entering the vehicle. At the same time, there is no need for a base frame structure to block foreign matter. In this way, the base frame structure can be set to be relatively light and thin, which is conducive to simplifying the overall structure of the folding ventilation device, reducing costs and facilitating installation.

Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the ventilation cover in the closed position of the foldable ventilation device of the present application. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the ventilation cover in the closed position of the foldable ventilation device of the present application. Figure 2 ;

[0019] Figure 3 yes Figure 1 Cross-sectional view along AA;

[0020] Figure 4 It is a structural schematic diagram of the ventilation cover in the foldable ventilation device of the present application being in an open position;

[0021] Figure 5 yes Figure 4 Cross-sectional view along BB. [Specific implementation method]

[0022] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] When the embodiments of the present application mention ordinal numbers such as "first" and "second", unless they do express the meaning of order according to the context, they should be understood as being merely for the purpose of distinction.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] Example: Figures 1 to 5As shown, the present embodiment provides a folding ventilation device, which can be installed on a vehicle roof, such as a roof of a motorhome, and can be used to introduce fresh air from outside into the vehicle, while expelling dirty air and odor from the inside, thereby enhancing air circulation. The folding ventilation device of the present embodiment includes a base frame 1 and a ventilation cover 2. The base frame 1 is used to be installed on the vehicle roof. The base frame 1 is provided with a base frame channel 11 that runs through the base frame 1. The base frame channel 11 can be used to connect the vehicle interior environment with the outside world. A ventilation fan can also be installed on the base frame 1 in the base frame channel 11 to improve the ventilation effect. The ventilation cover 2 is located on the upper side of the base frame 1 and can be flipped and moved relative to the base frame 1 to an open position or a closed position. When the base frame 1 is installed on the vehicle roof, the ventilation cover 2 is in the open position. Outside the RV, the ventilation cover 2 is provided with a cover edge 21 located outside one side of the base frame 1, and a ventilation port 3 located on one side of the base frame 1 and used to communicate with the base frame channel 11 is formed between the cover edge 21 and the base frame 1. The base frame channel 11, the inner cavity 22 of the ventilation cover 2 and the ventilation port 3 form a ventilation path 4. The ventilation path 4 is provided with a folding grille 5 located on one side of the base frame 1 and connected between the ventilation cover 2 and the base frame 1 and capable of being folded or unfolded as the ventilation cover 2 is turned over. Preferably, the folding grille 5 is provided at the ventilation port 3. When the ventilation cover 2 of this embodiment is in the closed position, the ventilation cover 2 is covered on the base frame 1, and the ventilation port 3 is close to the roof of the RV, and the folding grille 5 is in a folded state to prevent rainwater and foreign objects from entering the vehicle, thereby realizing the closed ventilation function; when the ventilation cover 2 is in the open position, the ventilation cover 2 forms an angle with the bottom surface of the base frame 1 so that the ventilation port 3 is away from the roof of the RV and exposed, and the folding grille 5 is in an unfolded state to realize the ventilation function. Since the angle formed by the ventilation cover 2 and the bottom surface of the base frame 1 is relatively small at this time, the position of the ventilation cover 2 can also block the base frame channel 11. The folding ventilation device of this embodiment is provided with a folding grille 5 connected between the base frame 1 and the ventilation cover 2 at the ventilation port 3, so that the turning height and angle of the ventilation cover 2 will be restricted by the folding grille 5. When the ventilation cover 2 is opened, it can be turned to a reasonable height that can ensure that the ventilation effect meets the use requirements without causing the ventilation cover 2 to turn too high. In this way, the turning height and angle of the ventilation cover 2 are not large, and the ventilation cover 2 can also play a good role in keeping out rain when it rains, preventing rainwater from entering the vehicle through the base frame channel 11, and ensuring that the ventilation effect meets the use requirements. At the same time, it will not increase the wind resistance of the RV during driving, reduce the possibility of damage to the ventilation cover 2, and also facilitate the RV to pass through the height-restricted section. In order to further reduce wind resistance, the side of the ventilation cover 2 facing away from the base frame 1 can also be set to a streamlined shape so that air flows on the surface of the ventilation cover 2.

[0026] After the folding ventilation device of this embodiment is installed on the roof, a folding grille 5 connected between the ventilation cover 2 and the base frame 1 is provided at the ventilation port 3. This can ensure that when the ventilation cover 2 is flipped to open the ventilation port 3, the folding grille 2 will not move away from the roof as the ventilation cover 2 moves. This can ensure that the folding grille 5 effectively blocks foreign matter from entering the vehicle. At the same time, there is no need for the base frame 1 structure to block foreign matter. In this way, the base frame 1 structure can be set to be relatively light and thin, which is conducive to simplifying the overall structure of the folding ventilation device, reducing costs and facilitating installation.

[0027] Furthermore, the folding grille 5 includes a first grille member 51 and a second grille member 52, one end of the first grille member 51 is hinged to one end of the second grille member 52, the other end of the first grille member 51 is hinged to the ventilation cover 2, and the other end of the second grille member 52 is hinged to the base frame 1. Since the first grille member 51 and the second grille member 52 are connected by a hinge, when the ventilation cover 2 moves between the open position and the closed position, the folding grille 5 can be stably unfolded and folded, maintaining the stability and reliability of the structure, and the hinged design enables the folding grille 5 to automatically unfold or fold as the ventilation cover 2 is turned over, without the need for additional operations, which greatly improves the convenience of use.

[0028] Furthermore, when the ventilation cover 2 is in the open position, the first grille member 51 and the second grille member 52 are arranged in the same plane; when the ventilation cover 2 is in the closed position, an angle α is formed between the first grille member 51 and the second grille member 52, and the angle α is greater than 0° and less than 90°. When the ventilation cover 2 is in the open position, the first grille member 51 and the second grille member 52 are arranged in the same plane to form a continuous and unobstructed ventilation surface, which helps to maximize the air flow and ensure that the air inside and outside the vehicle can be exchanged smoothly. The coplanar arrangement also makes the entire device more visually unified and neat, without unnecessary protruding or recessed parts, which increases the overall aesthetics. When the ventilation cover 2 is in the closed position, since a certain angle α has been formed between the first grille member 51 and the second grille member 52, when the ventilation cover 2 needs to be opened again, this helps them to unfold more smoothly, reducing the resistance and difficulty of operation.

[0029] Further, in order to facilitate the installation of the folding grille 5 on the ventilation cover 2, a grille bracket 6 is provided on the ventilation cover 2 at the ventilation port 3, the first grille member 51 is hinged to the ventilation cover 2 by being hinged to the grille bracket 6, and the hinged portion between the first grille member 51 and the second grille member 52 is provided on the grille bracket 6. Specifically, the grille bracket 6 is provided on the ventilation cover 2 at the ventilation port 3.

[0030] Furthermore, a flip linkage mechanism for driving the ventilation cover 2 to flip relative to the base frame 1 is provided between the ventilation cover 2 and the base frame 1, which is not shown in the figure. The flip linkage mechanism can realize the automatic flipping of the ventilation cover 2, and the flip linkage mechanism is arranged on the base frame 1 to facilitate the installation and use by the user. The flip linkage mechanism of this embodiment usually adopts a precise mechanical structure or an electric drive system, which can ensure the stability and reliability of the ventilation cover 2 during the flipping process. The flip linkage mechanism of this embodiment can adopt a commonly used flip connecting rod structure to realize the flipping, opening or closing of the ventilation cover 2. Of course, other structures can also be used to realize the flipping, opening and closing of the ventilation cover 2.

[0031] Furthermore, a shielding convex edge 23 extending toward the direction close to the base frame 1 is provided on the outer peripheral side of the ventilation cover 2. The shielding convex edge 23 can effectively prevent rainwater from drifting into the interior when the ventilation cover 2 is in the open position.

[0032] Furthermore, the base frame 1 and the ventilation cover 2 are hingedly connected by a hinge 7, and the hinge 7 is located on the side of the base frame 1 away from the ventilation port 3. Since the hinge 7 is located on the side away from the ventilation port 3, it can provide a stronger supporting force for the ventilation cover 2, making the entire device more stable when flipping, and reducing shaking or instability caused by wind or other external factors. Setting the hinge 7 on the side away from the ventilation port 3 can ensure that the ventilation port 3 is completely exposed to the outside when the ventilation cover 2 is opened, without any obstruction. This helps to maximize the ventilation effect of the ventilation device and ensure that the air inside and outside the vehicle can circulate smoothly.

[0033] Further, in order to facilitate the installation of the base frame 1 on the roof, a positioning flange 12 is provided on the outer peripheral side of the base frame 1, and the hinge 7 is provided on the positioning flange 12. The positioning flange 12 is also used for installation on the roof, so that the base frame 1 is installed on the roof as a whole.

[0034] The working principle of this embodiment is as follows:

[0035] The folding ventilation device of this embodiment is provided with a folding grille 5 connected between the base frame 1 and the ventilation cover 2 at the ventilation port 3, so that the turning height and angle of the ventilation cover 2 will be restricted by the folding grille 5. When the ventilation cover 2 is opened, it can be turned to a reasonable height that can ensure the ventilation effect without causing the ventilation cover 2 to turn too high. In this way, the turning height and angle of the ventilation cover 2 are not large, and the ventilation cover 2 can also play a good rain-proof role when it rains, preventing rainwater from entering the car, and can ensure that the ventilation effect meets the use requirements. At the same time, it will not increase the wind resistance of the RV during driving, reduce the possibility of damage to the ventilation cover 2, and also facilitate the RV to pass through height-restricted sections.

[0036] As described above, multiple implementation methods are provided in combination with specific contents, and the specific implementation of this embodiment is not limited to these descriptions. Any method, structure, etc. similar to or identical to this embodiment, or some technical deductions or replacements made based on the concept of this embodiment, shall be considered as the protection scope of this embodiment.

Claims

1. A foldable ventilation device, characterized in that: The invention comprises a base frame (1) and a ventilation cover (2), wherein the base frame (1) is provided with a base frame channel (11) which passes through the base frame (1), the ventilation cover (2) is located on the upper side of the base frame (1) and can be flipped relative to the base frame (1) to an open position or a closed position, the ventilation cover (2) is provided with a cover body edge (21) located outside one side of the base frame (1), a ventilation port (3) located on one side of the base frame (1) and used to communicate with the base frame channel (11) is formed between the cover body edge (21) and the base frame (1), the base frame channel (11) and the inner cavity (22) of the ventilation cover (2) and the ventilation port (3) form a ventilation path (4), and the ventilation path (4) is provided with a folding grille (5) located on one side of the base frame (1) and connected between the ventilation cover (2) and the base frame (1) and can be folded or unfolded as the ventilation cover (2) is flipped.

2. The folding ventilation device according to claim 1, characterized in that: The folding grille (5) comprises a first grille member (51) and a second grille member (52), one end of the first grille member (51) being hinged to one end of the second grille member (52), the other end of the first grille member (51) being hinged to the ventilation cover (2), and the other end of the second grille member (52) being hinged to the base frame (1).

3. The folding ventilation device according to claim 2, characterized in that: When the ventilation cover (2) is in the open position, the first grille member (51) and the second grille member (52) are arranged on the same plane; when the ventilation cover (2) is in the closed position, an angle α is formed between the first grille member (51) and the second grille member (52), and the angle α is greater than 0° and less than 90°.

4. The folding ventilation device according to claim 2, characterized in that: The ventilation cover (2) is provided with a grille support (6) at the ventilation port (3); the first grille member (51) is hingedly connected to the ventilation cover (2) by being hingedly connected to the grille support (6); and the hinged portion between the first grille member (51) and the second grille member (52) is arranged on the grille support (6).

5. The folding ventilation device according to any one of claims 1 to 4, characterized in that: A flip linkage mechanism is provided between the ventilation cover (2) and the base frame (1) for driving the ventilation cover (2) to flip relative to the base frame (1).

6. The folding ventilation device according to any one of claims 1 to 4, characterized in that: The outer peripheral side of the ventilation cover (2) is provided with a shielding convex edge (23) extending in a direction close to the base frame (1).

7. The folding ventilation device according to any one of claims 1 to 4, characterized in that: The base frame (1) and the ventilation cover (2) are hingedly connected via a hinge (7), and the hinge (7) is located on a side of the base frame (1) away from the ventilation port (3).

8. The folding ventilation device according to claim 7, characterized in that: A positioning convex edge (12) is provided on the outer peripheral side of the base frame (1), and the hinge (7) is arranged on the positioning convex edge (12).

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