Blade, shutter and rainproof ventilation filter window

Abstract

The invention discloses a blade, a shutter and a rainproof ventilation filtering window, and belongs to the technical field of shutters. The device comprises a vertical plate, a first inclined plate for guiding flow is obliquely arranged at the top of the vertical plate in the direction of an air inlet, a second inclined plate is obliquely arranged at the top of the first inclined plate in the direction opposite to the air inlet, a first inclined plate face is arranged on one side of the air inlet of the second inclined plate, and a drainage face is arranged on the other side of the air inlet of the second inclined plate. Compared with a traditional blind window, the high-rain-proof blind window has the advantages that the ventilation quantity is increased, meanwhile, rainwater interception of a product is improved, and the high-rain-proof performance is achieved.

Description

Technical Field

[0001] This invention relates to a blade, a louver, and a rainproof and ventilated filter window, belonging to the field of louver technology. Background Technology

[0002] Existing louver protection technology mainly relies on complex design structures, setting inflection points and interception points in the airflow channel to intercept rainwater. The structure of louvers is mostly S-shaped or similar, mainly by constantly changing the airflow channel path and using the inertial path of the airflow to throw rainwater out of the airflow's turning direction. In order to improve the overall rainproof performance of products on the market, the structure of louvers is relatively complex, and the airflow channel is also relatively complex. This greatly hinders the airflow, resulting in high overall resistance of the louvers and affecting the ventilation volume of the louvers. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a blade, louver, and rainproof ventilation filter window that can improve airflow while enhancing rainproof performance. To achieve the above objectives / to solve the above technical problems, the present invention is implemented using the following technical solution: First aspect: A blade, including a vertical plate, wherein the top of the vertical plate is inclined towards the air inlet and a first inclined plate is provided for guiding the airflow, the top of the first inclined plate is inclined in the opposite direction to the air inlet and a second inclined plate is provided, one side of the air inlet of the second inclined plate is an inclined plate surface and the other side is a guiding surface, and a baffle parallel to the vertical plate is provided at the connection between the top of the first inclined plate and the second inclined plate.

[0004] Optionally, the inclined plate surface is provided with a reinforcing rib.

[0005] Optionally, the inclined surface of the first inclined plate is provided with a reinforcing rib.

[0006] Optionally, the vertical plate has a reinforcing rib three on its vertical plate surface.

[0007] Optionally, the connection between the second inclined plate and the first vertical plate is provided with an insertion hole for external connection. In the air inlet direction, the connection between the second inclined plate and the first inclined plate is provided with an insertion hole for external connection.

[0008] The second aspect: a louver, comprising a plurality of blades as described in the first aspect, the plurality of blades being arranged sequentially from top to bottom, each blade having a vertical plate on the same vertical plane, an air inlet being formed between two adjacent blades, the reinforcing ribs in the upper blade and the first inclined plate in the next blade corresponding to each other to form an acceleration zone, the left side of the acceleration zone being a low-speed interception zone, and the right side of the acceleration zone being a high-speed interception zone.

[0009] Optionally, the position of the baffle in the upper blade can intercept raindrops carried by the airflow in the high-speed interception zone.

[0010] Optionally, when multiple blades are arranged sequentially from top to bottom, rainwater flowing along the baffle of the previous blade can be diverted to the diversion surface of the next blade.

[0011] Third aspect: A rainproof and ventilated filter window, comprising the louvers, horizontal frame, fasteners and side frames described in the second aspect, wherein both ends of each louver are connected to the fasteners, the fasteners at both ends of the louvers are disposed in slots in the corresponding side frames, and the top and bottom of the side frames at both ends are connected by the horizontal frame.

[0012] Optionally, the bottom horizontal frame of the louver has a drainage hole on one side in the direction of the air inlet, and a ramp on the opposite side of the drainage hole. When rainwater flows along the drainage surface, baffle and ramp, it is guided on the bottom horizontal frame and discharged from the drainage hole.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention employs a vertical channel between adjacent blades, which accelerates the airflow and increases the airflow volume by narrowing the airflow channel; This invention uses guide surfaces and reinforcing ribs on the blades as interception surfaces, effectively utilizing airflow inertia, gravity interception, and high and low velocity regions to improve the product's ability to intercept rainwater. Attached Figure Description

[0014] Figure 1 The diagram shown is a schematic diagram of the blade structure of the present invention; Figure 2 The diagram shown is a schematic representation of the blade arrangement of this invention. Figure 3 The diagram shown is a schematic of the louvered rainproof structure of the present invention; Figure 4 The diagram shown is a schematic of the filter window structure of the present invention; Figure 5 The diagram shown illustrates the connection between the connector and the horizontal frame of this invention. Figure 6 The diagram shown is a schematic diagram of the connection between the blade and the fixing member of the present invention; Figure 7 The diagram shown illustrates the connection between the louvers and the side frame of this invention. Figure 8 The diagram shows the connection between the filter and the filter window of the present invention.

[0015] In the diagram: 1. Vertical plate; 2. First inclined plate; 3. Reinforcing rib one; 4. Inclined plate surface one; 5. Second inclined plate; 6. Drainage surface; 7. Baffle; 8. Reinforcing rib two; 9. Reinforcing rib three; 10. Vertical plate surface one; 11. Inclined plate surface two; 12. Insertion hole; 13. Drainage hole; 14. Ramp; 15. Horizontal frame; 16. Connector; 17. Fixing component; 18. Side frame; 19. Louver; 20. Clamping component; 21. Filter. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0017] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] Example 1

[0020] like Figure 1 As shown, a blade includes a vertical plate 1. The top of the vertical plate 1 is inclined towards the air inlet and a first inclined plate 2 is provided for guiding the airflow. The top of the first inclined plate 2 is inclined in the opposite direction to the air inlet and a second inclined plate 5 is provided. A baffle 7 parallel to the vertical plate 1 is provided at the connection between the top of the first inclined plate 2 and the second inclined plate 5.

[0021] It is worth noting that the first inclined plate 2 is referenced. Figure 1The vertical plate 1 is tilted to the right as a reference. The inlet surfaces of the vertical plate 1 and the first inclined plate 2 are not equipped with interception points to ensure that the intercepted rainwater can be smoothly discharged through these two plates.

[0022] In the specific implementation process of this embodiment, such as Figures 1-2 As shown, the second inclined plate 5 is tilted to the left, opposite to the tilt direction of the first inclined plate 2. The air inlet side of the second inclined plate 5 is the inclined plate surface 4, that is, the left side of the plate is the inclined plate surface 4, and the other side is the drainage surface 6, that is, the right side of the plate is the drainage surface. The inclined plate surface 4 is provided with a reinforcing rib 3 to improve the strength of the inclined plate. The second inclined plate 5 is set with a certain tilt angle to ensure that when rainwater passes through the inlet area and directly enters the interior, it is intercepted by the second inclined plate 5 and the insertion hole 12. Due to the airflow, some water flow may move upward along the plate surface 4. This situation can be blocked by the intercepting reinforcing rib 3.

[0023] In the specific implementation process of this embodiment, such as Figure 1 and Figure 2 As shown, the inclined plate surface 11 of the first inclined plate is provided with a reinforcing rib 2 8. The reinforcing rib 2 8 and the inclined plate 5 of the next blade form an acceleration zone. The vertical plate surface 10 of the vertical plate 1 is provided with a reinforcing rib 3 9. The purpose is to physically block the water droplets flowing down from the vertical plate 1 when they reach the inlet area and are brought back into the inlet area by the airflow.

[0024] In this embodiment, a total of 3 reinforcing ribs are provided. Reinforcing rib 3 only serves to strengthen the structure. Reinforcing rib 8 forms a narrow channel with the top of the inclined plate 5 to accelerate the airflow and also serves as a reinforcing rib. In addition to strengthening the structure, the position of reinforcing rib 9 is determined based on CFD airflow simulation. Another function of rib 9 is to intercept the water flow from the plate surface 2 and plate surface 1, which is carried by the airflow into the rear of the plate surface 1 and rises along the plate surface, resulting in an increase in the water volume at the rear end.

[0025] In this embodiment, the connection between the inclined plate surface 2 11 and the vertical plate surface 10 is provided with an insertion hole 12 for external connection. In the air inlet direction, the connection between the second inclined plate 5 and the first inclined plate 2 is also provided with an insertion hole 12 for external connection. Figure 1 As shown, the purpose of setting the socket 12 is to facilitate connection with the frame.

[0026] Example 2

[0027] like Figures 2-3As shown, a louver is disclosed, including the blades in Embodiment 1. Multiple blades are arranged sequentially from top to bottom. The vertical plate 1 of each blade is on the same vertical plane. An air inlet is formed between two adjacent blades. The reinforcing rib 8 in the upper blade and the first inclined plate 2 in the lower blade correspond to each other to form an acceleration zone. The left side of the acceleration zone is a low-speed interception zone, and the right side of the acceleration zone is a high-speed interception zone.

[0028] It is worth noting that, due to the setting of the baffle 7, when the airflow reaches the high-speed interception zone, the entrance of this area suddenly narrows and the airflow speed increases. This allows the small water droplets carried by the airflow to be sprayed at high speed onto the baffle 7, where they accumulate and fall onto the guide surface 6 of the next blade. The water flow is reduced and gradually guided, accumulated, and falls to the drain hole 13 of the bottom crossbar 15 for discharge.

[0029] In the specific implementation process of this embodiment, such as Figure 2 As shown, the inlet area is the region between the vertical plates 1 of two adjacent blades. The low-speed interception area is the region between the vertical plate 1 of the previous blade and the first inclined plate 2 and the second inclined plate 5 of the next blade. The vertical plate 1 and the first inclined plate 2 are the main components constituting the inlet area and the low-speed interception area. The high-speed interception area is the region between the reinforcing rib 8 and the baffle 7 of the previous blade and the top of the second inclined plate of the next blade. In this embodiment, a vertical channel design is adopted in the airflow channel design. That is, if rainwater is to enter the downstream, it needs a lifting force. Rainwater enters the low-speed interception area through the inlet area and needs to be lifted by the airflow into the high-speed interception area before it can enter the downstream. However, since the openings of the inlet area and the low-speed interception area are designed to be open and have a large space, the flow velocity of the incoming airflow is not much different from the inlet flow velocity. It is difficult to lift the water droplets into the high-speed interception area. Rainwater is blocked from the perspective of gravity.

[0030] The main function of this embodiment in the high-speed interception zone is to achieve the final interception of rainwater by utilizing the flow velocity design and inertial interception. By narrowing the airflow channel to accelerate the airflow, the water droplets in the airflow are given greater kinetic potential energy, increasing their inertial force. Baffles 7 are designed on its flow path to block the rainwater accumulated due to inertia and enhance the rainproof effect.

[0031] In this embodiment, the low-velocity zone is designed with a relatively open inlet and internal space, increasing the distance between the two louvers to make the entire air passage open. This way, the airflow velocity will not change after entering from the inlet, and may even decrease. The force of the low-velocity airflow on the mixed rainwater and water droplets is reduced. Combined with the designed vertical air passage, the airflow is not fast enough to lift the rainwater. At the same time, the gravity of the water droplets is used to intercept the rainwater. High-velocity zone: The purpose of the high-velocity zone is to accelerate the airflow, increasing the airflow velocity. Water droplets entering this zone are relatively small and lack sufficient gravity. The accelerated airflow is needed to give the water droplets higher kinetic energy and increase their inertia. Under the interception of the subsequent single plate, even smaller water droplets are intercepted from the airflow and then discharged through the drainage surface.

[0032] In the specific implementation process of this embodiment, such as Figure 2 As shown, the spacing between two adjacent blades needs to meet the requirement that the position of the baffle 7 in the upper blade can intercept the raindrops carried by the airflow in the high-speed interception zone. In other words, the spacing between two adjacent blades cannot be too large, and the ventilation duct cannot be too large, otherwise the baffle 7 will not be effective.

[0033] In the specific implementation process of this embodiment, such as Figure 2 As shown, when multiple blades are arranged sequentially from top to bottom, rainwater guided by the baffle 7 in the upper blade can be diverted to the diversion surface 6 in the lower blade. It is worth noting that when the blades are arranged vertically, the vertical plates 1 are on a vertical plane from top to bottom, ensuring that the rainwater guided by the baffle 7 can be collected from the diversion surface of the lower blade and discharged from the drain hole 13.

[0034] Example 3

[0035] like Figure 4 As shown, a rainproof and ventilated filter window is disclosed, including louvers 19, a horizontal frame 15, a fixing member 17, and a side frame 18 as described in Embodiment 2. Both ends of each louver are connected to the fixing member 17, as shown below. Figure 6 As shown, each of the fixing members 17 has a column corresponding to the insertion hole 12 on the blade. The fixing members 17 at both ends of the louver 19 are located in the slots of the side frame 18 at the corresponding ends. The top and bottom of the side frame 18 at both ends are connected by a horizontal frame 15. Water droplets brought into the high-speed interception zone by the airflow are intercepted by the baffle 7 and guided layer by layer along the drainage surface 6 to the bottom horizontal bar 15 for accumulation, thus improving the rainproof performance.

[0036] In the specific implementation process of this embodiment, such as Figure 3 As shown, the bottom horizontal frame 15 of the louver 19 is provided with a drain hole 13 on one side in the direction of the air inlet, and a ramp 14 is provided on the opposite side of the drain hole 13. When rainwater flows along the guide surface 6, the baffle 7 and the ramp 14, it is guided on the bottom horizontal frame 15 and discharged from the drain hole 13.

[0037] In the specific implementation process of this embodiment, such as Figure 5 As shown, the horizontal frame 15 and the side frame 18 are connected by a connector 16. The connector 16 is L-shaped, with one end inserted into the horizontal frame 15 and the other end inserted into the side frame 18. This method forms a connection and fixation, connecting the outer frame of the louver 19.

[0038] In the specific implementation process of this embodiment, such as Figure 8 As shown, the louver 19 is provided with a filter 21 for filtering on the side away from the air inlet, and the side frame 18 is provided with a movable clamping member 20 for fixing the filter 21. It should be noted that the movable clamping member 20 adopts a conventional design in the prior art, which will not be described in detail here.

[0039] In summary, through the above design, the rainproof and ventilated filter window of this invention increases the ventilation volume by 44% compared to similar products, while reducing resistance by 16-33%.

[0040]

[0041] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A blade, characterized in that, The system includes a vertical plate (1), with a first inclined plate (2) at the top of the vertical plate (1) inclined towards the air inlet, and a second inclined plate (5) at the top of the first inclined plate (2) inclined in the opposite direction to the air inlet. The second inclined plate (5) has an inclined plate surface (4) on one side of the air inlet and a flow guiding surface (6) on the other side. A baffle (7) parallel to the vertical plate (1) is provided at the connection between the top of the first inclined plate (2) and the second inclined plate (5).

2. The blade according to claim 1, characterized in that, The inclined plate surface 1 (4) is provided with reinforcing rib 1 (3).

3. The blade according to claim 1, characterized in that, The inclined surface (11) of the first inclined plate is provided with reinforcing ribs (8).

4. The blade according to claim 3, characterized in that, The vertical plate (1) has a reinforcing rib (9) on the vertical plate surface (10).

5. The blade according to claim 4, characterized in that, The connection between the second inclined plate (11) and the first vertical plate (10) is provided with an insertion hole (12) for external connection. In the direction of air inlet, the connection between the second inclined plate (5) and the first inclined plate (2) is provided with an insertion hole (12) for external connection.

6. A type of louver, characterized in that, The blades include any one of claims 1-5, and the blades are arranged sequentially from top to bottom. The vertical plate (1) of each blade is on the same vertical plane, and an air inlet is formed between two adjacent blades. The reinforcing rib (8) in the upper blade and the first inclined plate (2) in the next blade correspond to form an acceleration zone. The left side of the acceleration zone is a low-speed interception zone, and the right side of the acceleration zone is a high-speed interception zone.

7. The louver according to claim 6, characterized in that, The position of the baffle (7) in the upper blade can intercept raindrops carried by the airflow in the high-speed interception zone.

8. The louver according to claim 6, characterized in that, When multiple blades are arranged sequentially from top to bottom, rainwater flowing along the baffle (7) of the previous blade can be diverted to the diversion surface (6) of the next blade.

9. A rainproof, ventilated, and filtered window, characterized in that, Includes the louver (19), cross frame (15), fastener (17) and side frame (18) as described in any one of claims 6-8, wherein both ends of each louver are connected to the fastener (17), the fastener (17) at both ends of the louver (19) is disposed in the slot of the corresponding end of the side frame (18), and the top and bottom of the side frames (18) at both ends are connected by the cross frame (15).

10. The rainproof and ventilated filter window according to claim 9, characterized in that, The bottom horizontal frame (15) of the louver (19) has a drain hole (13) on one side in the direction of the air inlet, and a ramp (14) is provided on the opposite side of the drain hole (13). When rainwater flows along the drainage surface (6), baffle (7) and ramp (14), it is guided on the bottom horizontal frame (15) and discharged from the drain hole (13).

Images