Sand-proof ventilating window

Abstract

The invention relates to the technical field of shutters, in particular to a sand-proof ventilating window which comprises a window frame and a plurality of shutters arranged in the window frame in parallel. The shutter comprises a first baffle obliquely arranged relative to the plane where the window frame is located, and the two ends of the first baffle are connected with the window frame. A second baffle is arranged on the first face of the first baffle, a third baffle, a fourth baffle and a fifth baffle are arranged on the second face of the first baffle, the second baffle and the fifth baffle are arranged on the first side of the first baffle, the third baffle is arranged on the second side of the first baffle, and the fourth baffle is arranged between the first side and the second side of the first baffle. The side, away from the first baffle, of the second baffle is provided with a first bent plate with the concave face facing the second side of the first baffle, and the side, away from the first baffle, of the fourth baffle is provided with a second bent plate facing the second side of the first baffle. According to the sand-proof ventilating window, sand can be effectively discharged, sand and dust deposition cannot be caused, and the sand and dust siphonage phenomenon can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of shutters, in particular to a sand-proof ventilation window. Background Art

[0002] The vertical louver structure adopts a complex louver blade design. The blades usually directly block the airflow path to prevent the intrusion of sand. For example, the structural designs disclosed in Chinese patents with publication numbers CN210439922U, CN2437830Y, CN113585941A, and CN217106750U, especially the Chinese patents with publication numbers CN113585941A and CN217106750U disclose a double-layer blade barrier structure to prevent sand and dust from entering. Due to the structural design of the blades, the sand and dust need to be discharged after being blocked. The above patents do not explain how the sand and dust can be discharged smoothly from the filter window. The Chinese patent with publication number CN202630335U discloses a method of discharging sand and dust, which is discharged through the funnel-shaped sand accumulation bag at the bottom, but the design in this patent also has two problems: 1. The installation problem of the filter window. Because the sand and dust need to be discharged, the bottom funnel needs to be external. Under limited installation space, a separate external space needs to be reserved for installation. If it is nested in the equipment or wall, the required structure and cost will be higher. 2. The bottom funnel is connected to the upper sand-blocking blades. When the air enters, the small holes in the bottom funnel are also one of the air inlets. The aperture design of the small holes may cause the wind speed at the sand discharge port to be too high, which ultimately affects the sand discharge effect. In the Chinese patent with publication number CN210439922U, a slope for discharging sand and dust is designed at the bottom, but due to its complex blade structure, the sand and dust are difficult to be blocked and discharged after deposition, and more of them are deposited in the groove structure of the bottom louvers.

[0003] The horizontal louver structure usually uses a simpler structure, such as the Chinese patent with publication number CN219241769U, but there are also complex structural designs, such as the Chinese patent with publication number CN220059363U, which discloses a waterproof and sand-proof louver structure, which adopts an S-shaped structure to block sand and water. However, in order to prevent the anti-sand and waterproof effect from being reduced due to excessive spacing, the louvers are arranged more compactly. If the louver spacing is too small, the air flow rate will be too high, which will not only fail to block the sand and dust, but will have a siphon-like effect, sucking the sand and dust directly into the interior. In addition, the dense louver arrangement will also increase the cost of the filter window, resulting in expensive products. Summary of the invention

[0004] The object of the present invention is to provide a sand-proof ventilation window, which can effectively discharge sand without causing sand and dust accumulation, and can avoid the sand and dust siphon phenomenon.

[0005] To achieve the above object, the present invention provides the following technical solutions: A sand-proof ventilation window comprises a window frame and a plurality of louvers arranged in parallel in the window frame; the louver comprises a first baffle arranged obliquely relative to the plane where the window frame is located, and both ends of the first baffle are connected to the window frame; a second baffle is arranged on the first surface of the first baffle, and a third baffle, a fourth baffle and a fifth baffle are arranged on the second surface of the first baffle, the second baffle and the fifth baffle are arranged on the first side of the first baffle, the third baffle is arranged on the second side of the first baffle, and the fourth baffle is arranged between the first side and the second side of the first baffle; a first bent plate with a concave surface facing the second side of the first baffle is arranged on the side of the second baffle away from the first baffle, and a second bent plate facing the second side of the first baffle is arranged on the side of the fourth baffle away from the first baffle.

[0006] In combination with the first aspect, further, a straight line that is tangent to the first bent plate and the second bent plate between two adjacent first baffles intersects with the fifth baffle.

[0007] In combination with the first aspect, further, the inclination angle of the first baffle relative to the plane where the window frame is located is 55°.

[0008] In combination with the first aspect, further, a projection length of the first baffle on the plane where the window frame is located is 35 cm to 45 cm.

[0009] In combination with the first aspect, further, the third baffle and the fourth baffle are both parallel to the plane where the window frame is located.

[0010] In combination with the first aspect, further, a dust collecting net is provided in the window frame at the first side close to the first baffle.

[0011] In combination with the first aspect, further, the dust collecting net is detachably connected to the window frame.

[0012] In combination with the first aspect, further, a sand-removing plate inclined relative to the plane where the window frame is located is provided at the bottom of the window frame.

[0013] In combination with the first aspect, further, the plane where the window frame is located is a vertical plane, and the shutters are arranged in the window frame at equal intervals along the vertical direction.

[0014] In combination with the first aspect, further, the window frame is a rectangular frame body, and the rectangular frame body is provided with a flange edge for installing the window frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The sand-proof ventilation window provided by the present invention has a first baffle plate and a second baffle plate and a first curved plate corresponding to the first baffle plate, between two adjacent first baffle plates, a first vortex zone is formed, and an acceleration zone is formed between the side of the first curved plate facing away from the first vortex zone and another first baffle plate; another first baffle plate and a third baffle plate, a fourth baffle plate and a second curved plate corresponding to the first baffle plate form a second vortex zone, and a third vortex zone is formed between the side of the fourth baffle plate facing away from the second vortex zone and the first baffle plate. Each vortex zone can cause the sand and dust vortex to agglomerate into dust whose deadweight exceeds the airflow velocity, and then settle on the first baffle plate, and fall down along the inclined surface of the first baffle plate and be discharged; the acceleration zone can accelerate the sand and dust, and then impact on the fifth baffle plate, and be bounced off by the fifth baffle plate. The shutter design adopted by the present invention can effectively discharge sand without causing sand and dust accumulation, and can also avoid the sand and dust siphon phenomenon.

[0016] In the sand-proof ventilation window provided by the present invention, the sand and dust collection net is arranged at the first side of the window frame near the first baffle, and the overall structure is compact. The sand and dust collection net is detachably connected to the window frame, so that the sand and dust collection net can be easily disassembled or replaced as needed.

[0017] The sand-proof ventilation window provided by the present invention has a rectangular frame with a flange edge, which can be fixed to the housing or wall of the ventilation equipment through the flange edge to achieve a ventilation and filtering effect from the outside to the inside. Compared with the existing sand-proof windows, it is not necessary to add a sand collecting bag or a sand collecting trough or other collecting device. A sand pouring plate inclined relative to the plane where the window frame is located is provided at the bottom of the window frame to prevent sand and dust from accumulating at the bottom of the window frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the shutter structure of the sand-proof ventilation window provided by an embodiment of the present invention; Figure 2 Schematic diagram of the dust path when the dust is blown into the sand-proof ventilation window along a straight line according to an embodiment of the present invention; Figure 3 Schematic diagram of the dust path when the dust is blown into the sand-proof ventilation window along a parabola according to an embodiment of the present invention; Figure 4 is a schematic diagram of the fifth baffle structure of the sand-proof ventilation window provided in an embodiment of the present invention; Figure 5 Schematic diagram of wind speed in a sand-proof ventilation window provided by an embodiment of the present invention; Figure 6 Schematic diagram of the low-speed zone of the sand-proof ventilation window provided by an embodiment of the present invention; Figure 7 Schematic diagram of the window frame structure of the sand-proof ventilation window provided in an embodiment of the present invention, wherein (a) is a side view of the window frame, and (b) is a front view of the window frame; In the figure: 1. window frame; 2. first baffle; 3. second baffle; 4. third baffle; 5. fourth baffle; 6. fifth baffle; 7. first bent plate; 8. second bent plate; 9. dust collecting net. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0020] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limitations of the present invention. In the absence of conflict, the technical features of the embodiments of the present application and the embodiments may be combined with each other.

[0021] Embodiment 1: This embodiment provides a sand-proof ventilation window, such as Figure 7 As shown in (a) and (b), it includes a window frame 1 and a plurality of blinds arranged in parallel in the window frame 1. Figure 1 As shown, the shutter includes a first baffle 2 which is arranged obliquely relative to the plane where the window frame 1 is located, and both ends of the first baffle 2 are connected to the window frame 1. A second baffle 3 is arranged on the first surface of the first baffle 2, and a third baffle 4, a fourth baffle 5 and a fifth baffle 6 are arranged on the second surface of the first baffle 2. The second baffle 3 and the fifth baffle 6 are arranged on the first side of the first baffle 2, the third baffle 4 is arranged on the second side of the first baffle 2, and the fourth baffle 5 is arranged between the first side and the second side of the first baffle 2. A first curved plate 7 with a concave surface facing the second side of the first baffle 2 is arranged on the side of the second baffle 3 away from the first baffle 2, and a second curved plate 8 facing the second side of the first baffle 2 is arranged on the side of the fourth baffle 5 away from the first baffle 2.

[0022] In this embodiment, Figure 2 As shown, between two adjacent first baffles 2, one first baffle 2 and the second baffle 3 and the first bent plate 7 corresponding to the first baffle 2 together form a first vortex zone, and an acceleration zone is formed between the side of the first bent plate 7 facing away from the first vortex zone and the other first baffle 2; the other first baffle 2 and the third baffle 4, the fourth baffle 5 and the second bent plate 8 corresponding to the first baffle 2 together form a second vortex zone, and a third vortex zone is formed between the side of the fourth baffle 5 facing away from the second vortex zone and the first baffle 2.

[0023] The eddy zone can cause the sand and dust eddies to aggregate into dust whose weight exceeds the air flow rate, and then settle onto the first baffle plate 2 and fall down along the inclined surface of the first baffle plate 2 and be discharged; the acceleration zone can accelerate the sand and dust, and then impact onto the fifth baffle plate 6 and be bounced off by the fifth baffle plate 6.

[0024] Specifically, Figure 2 As shown, the dust is blown in from the first side of two adjacent first baffles 2 in a straight line, and after rebounding from the inclined surface of the first baffle 2, a part of it enters the first vortex zone, the second vortex zone or the third vortex zone, a part of it enters the acceleration zone, and a part of it directly hits each baffle or each curved plate. The dust vortex that enters the first vortex zone, the second vortex zone or the third vortex zone agglomerates into dust whose weight exceeds the air flow velocity, and then settles on the first baffle 2, falls along the inclined surface of the first baffle 2 and is discharged. The dust that enters the acceleration zone is accelerated, and then impacts the fifth baffle 6, and is bounced off by the fifth baffle 6. The dust that directly hits each baffle or each curved plate rebounds from each baffle or each curved plate, and finally settles on the first baffle 2, and falls along the inclined surface of the first baffle 2 and is discharged.

[0025] Specifically, Figure 3 As shown, the dust is blown in along a parabola from the first side of two adjacent first baffles 2, and after rebounding from the inclined surface of the first baffle 2, a part of it enters the first vortex zone, the second vortex zone and the third vortex zone, a part of it enters the acceleration zone, and a part of it directly hits each baffle or each curved plate. The dust vortexes entering the first vortex zone, the second vortex zone and the third vortex zone agglomerate into dust whose deadweight exceeds the airflow velocity, and then settles on the first baffle 2, falls down along the inclined surface of the first baffle 2 and is discharged. The dust entering the acceleration zone is accelerated, and then impacts the fifth baffle 6, and is bounced off by the fifth baffle 6. The dust that directly hits each baffle or each curved plate rebounds from each baffle or each curved plate, and finally settles on the first baffle 2, and falls down along the inclined surface of the first baffle 2 and is discharged.

[0026] In this embodiment, the area between the second sides of two adjacent first baffles 2 is defined as the air inlet. Figure 6 As shown in the figure, a low-speed zone is formed between the air inlet and the acceleration zone. Based on the spacing design between the baffles, the wind speed is basically kept at a low speed in the area between the air inlet and the acceleration zone. Larger particles of sand and dust are difficult to be affected by the wind speed and given more kinetic energy to enter the acceleration zone, thus reducing the siphon phenomenon of the louver spacing.

[0027] Specifically, Figure 5 As shown, the wind speed in the low-speed zone is basically within 6m / s. On the one hand, it can ensure that the dust with a particle size of 63μm~125μm naturally agglomerates and settles on the first baffle 2, and falls down along the inclined surface of the first baffle 2 and is discharged. At the same time, the dust is discharged by the baffle after gathering. On the other hand, it can ensure that the dust is not raised for the second time.

[0028] The high-speed area can ensure that the sand and dust that are not affected by the low-speed area are impacted to the fifth baffle 6 by inertia after being accelerated in the high-speed area, and then intercepted by the fifth baffle 6.

[0029] Embodiment 2: This embodiment provides a sand-proof ventilation window. Based on the embodiment 1, Figure 4 As shown, a straight line tangent to the first curved plate 7 and the second curved plate 8 between two adjacent first baffles 2 intersects with the fifth baffle 6 .

[0030] In this embodiment, the straight line tangent to the first curved plate 7 and the second curved plate 8 between two adjacent first baffles 2 intersects with the fifth baffle 6, that is, the length of the fifth baffle 6 is required to reach a preset threshold value, which can ensure that the dust that is not intercepted by the first curved plate 7 or the second curved plate 8 after rebounding from the first baffle 2 can still be intercepted by the fifth baffle 6 after being accelerated in the acceleration zone.

[0031] Embodiment 3: This embodiment provides a sand-proof ventilation window. Based on Embodiment 1, the inclination angle of the first baffle 2 relative to the plane where the window frame 1 is located is 55°.

[0032] Specifically, Figure 4 As shown, the plane where the window frame 1 is located is a vertical plane, and the inclination angle of the first baffle 2 relative to the vertical plane is 55°, that is, the inclination angle relative to the horizontal plane is 35°.

[0033] In this embodiment, based on the repose angle of 30° for dust accumulation, the inclination angle of the first baffle 2 relative to the horizontal plane is set to 35°. On the one hand, it can ensure that the dust falls and is discharged along the inclined surface of the first baffle 2 without accumulating. On the other hand, it can increase the longitudinal height of the louvers, thereby reducing the number of louvers arranged.

[0034] Embodiment 4: This embodiment provides a sand-proof ventilation window. Based on Embodiment 1, the third baffle 4 and the fourth baffle 5 are both parallel to the plane where the window frame 1 is located.

[0035] Specifically, Figure 4 As shown, the plane where the window frame 1 is located is a vertical plane, and the third baffle 4 and the fourth baffle 5 are both parallel to the plane where the window frame 1 is located, that is, the third baffle 4 and the fourth baffle 5 are both vertically arranged.

[0036] In this embodiment, Figure 4 As shown, a surface of the connection between the third baffle plate 4 and the first baffle plate 2 facing the fourth baffle plate 5 and a surface of the connection between the fourth baffle plate 5 and the first baffle plate 2 facing the second baffle plate 3 are both configured as arc surfaces.

[0037] Embodiment 5: This embodiment provides a sand-proof ventilation window. Based on the embodiment 1, Figure 2 As shown, a dust collecting net 9 is also provided at the first side of the window frame 1 near the first baffle 2 .

[0038] Specifically, the shutter is arranged at the air inlet of the window frame 1, and the dust collecting net 9 is arranged at the air outlet of the window frame 1. Figure 2 As shown, the dust collecting net 9 is at a preset distance from the first side of the first baffle plate 2 .

[0039] In this embodiment, part of the sand and dust intercepted by the fifth baffle 6 falls vertically, and part of the sand and dust is captured by the sand and dust capturing net 9 after rebounding from the fifth baffle 6 .

[0040] Embodiment 6: This embodiment provides a sand-proof ventilation window. On the basis of Embodiment 5, the sand and dust collection net 9 is detachably connected to the window frame 1.

[0041] In this embodiment, the sand and dust collecting net 9 is detachably connected to the window frame 1, and the sand and dust collecting net 9 can be removed or replaced as needed.

[0042] Embodiment 7: This embodiment provides a sand-proof ventilation window. On the basis of Embodiment 1, a sand-repelling plate inclined relative to the plane where the window frame 1 is located is provided at the bottom of the window frame 1.

[0043] In this embodiment, part of the sand and dust intercepted by the fifth baffle 6 falls vertically, and part of it is rebounded by the fifth baffle 6. The vertically falling sand and dust settles on the sand pouring plate at the bottom of the window frame 1, and falls and is discharged along the inclined surface of the sand pouring plate, which can prevent the sand and dust from accumulating at the bottom of the window frame 1.

[0044] Embodiment 8: This embodiment provides a sand-proof ventilation window. On the basis of Embodiment 1, the window frame 1 is a rectangular frame body, and the rectangular frame body is provided with a flange edge for installing the window frame 1.

[0045] In this embodiment, the window frame 1 is installed on the housing or wall of the ventilation equipment through the flange edge, which can achieve a ventilation and filtering effect from the outside to the inside.

[0046] The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A sand-proof ventilation window, characterized in that: The invention comprises a window frame (1) and a plurality of shutters arranged in parallel in the window frame (1); the shutter comprises a first baffle (2) arranged obliquely relative to a plane where the window frame (1) is located, and two ends of the first baffle (2) are connected to the window frame (1); a second baffle (3) is arranged on the first surface of the first baffle (2), and a third baffle (4), a fourth baffle (5) and a fifth baffle (6) are arranged on the second surface of the first baffle (2); the second baffle (3) and the fifth baffle (6) are arranged on the first side of the first baffle (2), the third baffle (4) is arranged on the second side of the first baffle (2), and the fourth baffle (5) is arranged between the first side and the second side of the first baffle (2); a first bent plate (7) with a concave surface facing the second side of the first baffle (2) is arranged on the side of the second baffle (3) away from the first baffle (2), and a second bent plate (8) facing the second side of the first baffle (2) is arranged on the side of the fourth baffle (5) away from the first baffle (2).

2. The sand-proof ventilation window according to claim 1, characterized in that: At the same time, a straight line tangent to the first bent plate (7) and the second bent plate (8) between two adjacent first baffles (2) intersects with the fifth baffle (6).

3. The sand-proof ventilation window according to claim 1, characterized in that: The inclination angle of the first baffle (2) relative to the plane where the window frame (1) is located is 55°.

4. The sand-proof ventilation window according to claim 1, characterized in that: The projection length of the first baffle (2) on the plane where the window frame (1) is located is 35 cm to 45 cm.

5. The sand-proof ventilation window according to claim 1, characterized in that: The third baffle (4) and the fourth baffle (5) are both parallel to the plane where the window frame (1) is located.

6. The sand-proof ventilation window according to claim 1, characterized in that: A sand and dust collecting net (9) is also provided on the first side of the window frame (1) close to the first baffle (2).

7. The sand-proof ventilation window according to claim 5, characterized in that: The sand and dust collecting net (9) is detachably connected to the window frame (1).

8. The sand-proof ventilation window according to claim 1, characterized in that: The bottom of the window frame (1) is provided with a sand-removing plate which is inclined relative to the plane where the window frame (1) is located.

9. The sand-proof ventilation window according to claim 1, characterized in that: The plane on which the window frame (1) is located is a vertical plane, and the shutters are arranged in the window frame (1) at equal intervals along the vertical direction.

10. The sand-proof ventilation window according to any one of claims 1 to 8, characterized in that: The window frame (1) is a rectangular frame body, and the rectangular frame body is provided with a flange edge for installing the window frame (1).

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