High-efficiency mute protective blade and shutter applying same

Abstract

The utility model provides an efficient silent protective blade and a shutter using the same, including waterproof diversion arc-shaped plate and at least one waterproof sand-blocking plate, the waterproof diversion arc-shaped plate is fixedly arranged on the inner side of each waterproof sand-blocking plate, and each waterproof sand-blocking plate surrounds the waterproof diversion arc-shaped plate to form a cavity layout structure with an arc-shaped cross section, and the waterproof diversion arc-shaped plate and the at least one waterproof sand-blocking plate are fixedly arranged on the inner side of each waterproof sand-blocking plate. The filter is used for forming a continuous filter path. In order to solve the problems in the prior art that when the size of a blade exceeds 1 meter, the middle part is easy to deform and the strength is not high, all waterproof sand-blocking plates are stacked, and each layer is tightly attached to a waterproof flow-guiding arc-shaped plate, so that a continuous filtering path with a triangular section is formed; the three edges of the whole blade form a triangular structure, so that the rigidity of the whole blade is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blades, in particular to a high-efficiency silent protection blade and a shutter using the blade. Background Art

[0002] As an important part of a building, windows not only have the function of ventilation, but also provide sufficient natural light for the interior. However, under certain specific climatic conditions, such as areas with frequent wind and rain and large air circulation, traditional windows cannot meet the needs of rainproof ventilation and noise reduction.

[0003] Patent CN212720107U discloses a blade assembly for a ventilation device. In order to solve the problem that the blades of the existing ventilation device need to be set at a larger angle to achieve a higher protection level, resulting in reduced ventilation efficiency, and some water and dust are easily accumulated on the blades, affecting the ventilation efficiency, it is proposed to set multiple groups of spaced blade arrays to reduce the windward angle of the blades, which has little effect on the circulation of airflow and improves the ventilation efficiency.

[0004] But it still has the following defects:

[0005] ① According to paragraph 33 of the manual, as the size of the blade increases, the windward area also increases, which leads to an increase in the wind pressure on the blade, especially in the absence of additional support, further increasing the risk of deformation of the middle part of the blade;

[0006] ② According to paragraph 35 of the specification, the cross section of the blade (200) is designed to be an upward convex structure. This design can effectively block water and dust when the blade size is small, but when the blade size is expanded to 1 meter or longer, the middle part is prone to deformation under the action of wind due to the large span and lack of support;

[0007] ③ According to paragraph 39 of its specification, the blades (200) proposed therein are designed to be staggered, which is helpful for airflow dispersion and particle deposition. However, when the blade size is extended to 1 meter or longer, the staggered part of the long blade will be more susceptible to wind force due to the increased span, increasing the risk of deformation;

[0008] ④ According to paragraph 43 of its specification, it is proposed that the blade ends are installed through guide grooves (321) and fastening fittings (210), but if the blade size increases (the blade size is extended to 1 meter or longer), the existing installation method cannot provide sufficient support force, causing the blade to bend or droop during use.

[0009] Based on this, in order to address the defects of deformation and insufficient strength when the blade size exceeds 1 meter, it is proposed to use a triangular blade design instead of the traditional "upward convex" or inverted "V" structure, which can significantly improve the stability and durability of large-size blades while maintaining the same protection level. Utility Model Content

[0010] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a high-efficiency silent protective blade and a shutter using the blade to solve the problems raised in the above-mentioned background technology. The present invention solves the problems in the prior art by stacking each waterproof sand-blocking plate, and each layer is tightly fitted with the waterproof guide arc plate to form a continuous filtering path with a triangular cross-section.

[0011] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical solutions: In order to achieve the above-mentioned purpose, the utility model is realized by the following technical solutions: A high-efficiency silent protection blade includes

[0012] A waterproof guide arc plate and at least one waterproof sand blocking plate, wherein:

[0013] The waterproof guide arc plate is fixedly arranged on the inner side of each waterproof sand blocking plate, and each waterproof sand blocking plate surrounds the waterproof guide arc plate to form a cavity layout structure with an arc-shaped cross section, which is used to form a continuous filtering path.

[0014] As a second aspect of the present invention, doors and windows using highly efficient and silent protective blades are proposed.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In order to solve the problem in the prior art that the middle part of the blade is prone to deformation and low strength when the blade size exceeds 1 meter, the utility model proposes to stack each waterproof sand blocking plate, and each layer is closely fitted with the waterproof guide arc plate to form a continuous filtering path with a triangular cross-section, and the triangular structure composed of the three sides of the entire blade increases the rigidity of the entire blade;

[0017] 2. In order to solve the problem of wind force concentration on the windward side of the blade in the prior art, which increases the vibration and noise of the blade, the utility model proposes to design each waterproof sand blocking plate into a streamlined structure to better guide the airflow and reduce resistance;

[0018] 3. The utility model proposes to open a guide groove with a semicircular or V-shaped cross-section on the first waterproof sand-blocking plate, so that it can guide the airflow to transition more smoothly, reduce the turbulence of the airflow, reduce the noise, and at the same time improve the efficiency of air flow and reduce the direct impact of wind on the blades. At the same time, the opening width of the arc-shaped cavity is set to be greater than or equal to the width of the guide groove, ensuring that the airflow smoothly transitions from the guide groove to the arc-shaped cavity, reducing the generation of turbulence, further improving the ventilation efficiency and reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure cross section of a single high-efficiency silent protection blade proposed in an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the installation structure of the high-efficiency silent protection blades in the shutters proposed in the embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the high-efficiency silent protection blades proposed in the embodiment of the utility model guiding the airflow in the shutter;

[0023] Figure 4 It is a schematic diagram of the installation position of the guide groove with a V-shaped cross section and the first waterproof sand blocking plate proposed in the embodiment of the utility model.

[0024] Reference numerals:

[0025] 1-first waterproof sand blocking plate, 2-second waterproof sand blocking plate, 3-third waterproof sand blocking plate, 4-waterproof flow guide arc plate, 5-arc cavity, 6-first layer of blades, 7-second layer of blades, 8-outer frame, 9-blade clamp, 10-flow guide groove. DETAILED DESCRIPTION

[0026] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0027] like Figure 1As shown, as an embodiment of the utility model, the utility model provides a technical solution: a high-efficiency silent protective blade, including a waterproof guide arc plate 4 and at least one waterproof sand blocking plate, the waterproof guide arc plate 4 is fixed on the inner side of each waterproof sand blocking plate, and each waterproof sand blocking plate surrounds the waterproof guide arc plate 4 to form a cavity layout structure with an arc-shaped cross-section, which is used to form a continuous filtering path.

[0028] It should be noted that, since there is a problem in the prior art that when the blade size exceeds 1 meter, the middle part is prone to deformation and the strength is not high, the utility model preferably proposes to use three waterproof sand blocking plates to form a single blade, that is, in the specific implementation, the first waterproof sand blocking plate 1, the second waterproof sand blocking plate 2 and the third waterproof sand blocking plate 3 are stacked to form a continuous filtration path. At the same time, the waterproof guide arc plate 4 is located on the same inner side of the three protective plates and is connected to the arc cavity to form a complete guide and noise reduction system, which not only improves the efficiency of air filtration, but also optimizes the guidance of airflow, reduces wind force and noise control.

[0029] As an embodiment of the utility model, three waterproof sand blocking plates are arranged in sequence at equal intervals according to a preset curvature on the outer circumferential surface of the waterproof guide arc plate 4 to form an effective air guide path. It should be noted that each waterproof sand blocking plate is connected to the waterproof guide arc plate 4 by welding and / or bolts and / or snaps to form an integral structure, the purpose of which is to greatly enhance the rigidity of the entire blade assembly, effectively resist the bending and twisting caused by wind force, and reduce the deformation risk of large-sized blades. In specific implementation, if bolts and snaps are used for connection, an adjustable fastening method can be provided to ensure that the connection between the waterproof sand blocking plate and the waterproof guide arc plate 4 can remain stable even under long-term wind pressure and vibration. If welding is used for connection, the stability of the structure is further improved. The above-mentioned preset arc θ is calculated according to the position of the waterproof and sand blocking plate on the circumference (outer circumferential surface of the waterproof guide arc plate 4). If there are n waterproof and sand blocking plates in total, the angle θ between the center of each waterproof and sand blocking plate and the center of the circle is 360° / n. The utility model preferably has three waterproof and sand blocking plates, that is, the angle θ formed by two waterproof and sand blocking plates based on the center of the waterproof guide arc plate 4 is 120°.

[0030] like Figure 1 , Figure 2 , Figure 4As shown, as an embodiment of the utility model, the customized waterproof sand blocking plates close to the outside and facing the incoming wind, sand and moisture are respectively the first waterproof sand blocking plate 1 and the second waterproof sand blocking plate 2, the inner waterproof sand blocking plate is the third waterproof sand blocking plate 3, which is located between the first waterproof sand blocking plate 1 and the second waterproof sand blocking plate 2, and a guide groove 10 with a semicircular or V-shaped cross-section is provided on the first waterproof sand blocking plate 1, the guide groove 10 is parallel to the first waterproof sand blocking plate 1, and its long side extends along the longitudinal direction of the blade, keeping parallel to the blade, so as to guide the airflow passing through the first waterproof sand blocking plate 1, reduce the turbulence of the airflow, and reduce the noise. In specific implementation, the opening width of the arc-shaped cavity 5 is greater than or equal to the width of the guide groove 10 to reduce the turbulence caused by the sudden expansion of the airflow, ensuring that the airflow smoothly transitions from the guide groove 10 to the arc-shaped cavity 5. At the same time, the end of the guide groove 10 should smoothly transition to the arc-shaped cavity 5 to avoid turbulence of the airflow when entering the cavity. At the same time, the impact of wind force is reduced and the risk of deformation is reduced. The above transition can be achieved by gradually increasing the width of the guide groove 10.

[0031] In one embodiment of the utility model, the width of the guide groove 10 is preferably 30 mm to ensure that the airflow can smoothly transition from the groove to the arc-shaped cavity 5 to reduce turbulence and noise, and its depth is preferably 5 mm to facilitate guiding the airflow without excessively hindering air circulation. The opening width of the arc-shaped cavity 5 is at least 30 mm to match the width of the guide groove 10 to ensure the continuity and uniformity of the airflow.

[0032] In one embodiment of the utility model, each waterproof sand blocking plate is a streamlined structure to better guide airflow and reduce resistance, and each waterproof sand blocking plate is evenly coated with an antistatic coating on its surface to reduce the adhesion of sand and dust. Figure 3 As shown, the arc-shaped cavity 5 is located inside the blade structure. When strong wind passes through multiple groups of blades, due to the design of the arc-shaped cavity 5, the air speed will be reduced after entering the cavity, thereby reducing the noise caused by the wind and achieving a silent effect. At the same time, the three waterproof sand-blocking plates filter the air step by step to prevent the invasion of moisture and dust and keep the indoor environment clean. The arc-shaped design helps to guide the airflow and facilitate air circulation. When the wind speed is relatively high, the air slows down through the cavities of the first layer of blades 6 and the second layer of blades 7 and is slowly delivered into the room. In this way, the sound of "whistling" wind will not be generated, reducing noise. At the same time, due to the optimization of the guidance of the airflow, it directly plays a role in reducing wind force and keeping the blades from deformation.

[0033] like Figure 2As shown, in one embodiment of the utility model, in order to solve the defects of deformation and insufficient strength when the blade size exceeds 1 meter, the utility model also proposes to clamp the blade on the clamp by adopting an aluminum alloy blade clamp 9 during installation, and the blade clamp 9 is installed on the outer frame 8 corresponding to the edge of the blade. At this time, compared with the traditional convex or inverted "V" blade, the triangular blade has three supporting edges. The triangular blade can distribute the force more evenly to the three edges, rather than just relying on the support at the two ends or the middle of the blade, thereby improving the strength of the entire blade and the outer frame.

[0034] As a second aspect of the utility model, a door and window using high-efficiency silent protective blades is proposed, wherein the door and window include at least two groups of blade arrays spaced apart along the air entry direction, each group of blade arrays is composed of a plurality of blades, and the blades in each group of blade arrays are spaced apart along the up and down directions to form a multi-layer protection and filtration system.

[0035] Based on the above technical concept, in the specific implementation, the doors and windows are made of solid aluminum alloy or plastic steel materials to ensure the stability and durability of the overall structure. At the same time, the inner edge of the doors and windows is provided with slots for installing multiple blade assemblies, and the blades are fixed in the slots of the door and window frame using aluminum alloy blade clamps to ensure the stability of the blades.

[0036] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A highly efficient silent protection blade, characterized in that: include: A waterproof guide arc plate and at least one waterproof sand blocking plate, wherein: The waterproof guide arc plate is fixedly arranged on the inner side of each waterproof sand blocking plate, and each waterproof sand blocking plate surrounds the waterproof guide arc plate to form a cavity layout structure with an arc-shaped cross section, which is used to form a continuous filtering path.

2. The high-efficiency silent protection blade according to claim 1, characterized in that: The waterproof sand blocking plates are arranged in sequence at equal intervals according to a preset arc on the outer circumferential surface of the waterproof guide arc plate to form an effective air guide path.

3. The high-efficiency silent protection blade according to claim 1, characterized in that: The custom waterproof sand-blocking plates close to the outer layer and facing the incoming wind, sand and moisture are the first waterproof sand-blocking plate and the second waterproof sand-blocking plate, wherein: It is located between the first waterproof sand blocking plate and the second waterproof sand blocking plate, and a guide groove with a semicircular or V-shaped cross-section is opened on the first waterproof sand blocking plate. The guide groove is parallel to the first waterproof sand blocking plate, and its long side extends along the longitudinal direction of the blade and remains parallel to the blade to guide the airflow passing through the first waterproof sand blocking plate, reduce the turbulence of the airflow, and reduce noise.

4. The high-efficiency silent protection blade according to claim 1, characterized in that: Each of the waterproof sand blocking plates is connected to the waterproof flow guide arc plate by welding and / or bolts and / or buckles to form an integral structure.

5. The high-efficiency silent protection blade according to claim 1, characterized in that: Each of the waterproof sand blocking plates is a streamlined structure to better guide airflow and reduce resistance, and The surface of each waterproof sand-blocking plate is evenly coated with an antistatic coating to reduce the adhesion of sand and dust.

6. The high-efficiency silent protection blade according to claim 3, characterized in that: The opening width of the arc-shaped cavity is greater than or equal to the width of the guide groove, so as to reduce turbulence caused by the sudden expansion of the airflow and ensure that the airflow smoothly transitions from the guide groove to the arc-shaped cavity.

7. A shutter, characterized in that: include: At least two groups of blade arrays are spaced apart along the air entry direction, wherein each group of blade arrays is composed of at least one group of high-efficiency silent protection blades as described in any one of claims 1 to 6, and the blades in each group of blade arrays are spaced apart along the up and down directions to form a multi-layer protection and filtration system.

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