A type of rainproof and insect-proof louver for exterior walls

Abstract

This utility model relates to an exterior wall rainproof and insect-proof louver, comprising: a window frame, which is set at the four corners to form a facade frame; an insect-proof net, which is fixed to the window frame at the four corners; and blades, which are herringbone shaped and set between the window frames, including intersecting outer and inner blades, wherein the bottom of the outer blade is lower than the bottom of the inner blade, and the top of the outer blade crosses the neck of the inner blade; the top of the inner blade is also provided with a top blade, which is arc-shaped, convex inward and concave outward, and in the adjacent layers of blades, the top blade extends above the bottom of the outer blade of the upper layer. "Convex inward and concave outward" refers to the side facing inward being convex and the side facing outward being concave. This utility model uses herringbone blades, which can both allow ventilation and block and guide rainwater.

Description

Technical Field

[0001] This utility model relates to the field of louvers, and more particularly to an exterior wall rainproof and insect-proof louver. Background Technology

[0002] For example, Chinese Utility Model Patent Publication No. CN 210067899 U discloses a novel fixed foamed aluminum louver, which includes a frame and blades. The inner side of the frame's uprights is provided with blade mounting grooves, and the blades are fixed to the frame through these grooves. The blades are made of perforated foamed aluminum material, and the angle α between the blades and the horizontal line is 30° to 45°. The blades used are single-blade type, which is not conducive to both rain protection and ventilation. When the blades are open, rain enters along with the wind, failing to ensure both ventilation and rainwater blocking. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an exterior wall rainproof and insect-proof louver, which adopts herringbone-shaped blades, so as to both allow for ventilation and block and guide rainwater.

[0004] To solve the above problems, an exterior wall rainproof and insect-proof louver was adopted, which includes: The window frame is positioned at the four corners to form the facade frame; Insect-proof netting, which is fixed to the window frame at the four corners; The blades, shaped like a V-shape, are positioned between the window frames. They include intersecting outer and inner blades, with the bottom of the outer blade lower than the bottom of the inner blade, and the top of the outer blade intersecting the neck of the inner blade. Each inner blade also has a top blade, which is arc-shaped, convex inwards and concave outwards. In adjacent layers of blades, the top blade extends above the bottom of the outer blade of the upper layer. "Convex inwards and concave outwards" refers to the side facing inwards being convex and the side facing outwards being concave.

[0005] With this structure, for fixed blades, the outer blades are positioned lower, which is beneficial for blocking rainwater. The wind moves upward from below the outer blades in a climbing manner, and the top blades further provide rainwater protection by intercepting the upward-moving rainwater. Finally, the rainwater flows outdoors under the guidance of the top and outer blades, while the wind climbs down the inner blades and enters the room, thus achieving both rain protection and ventilation.

[0006] As a further improvement of this utility model, both the outer and inner blades of the blade are provided with L-shaped folded edges at their bottoms.

[0007] With this structure, when the blade is upright, the vertical edge of the L-shaped fold is parallel to the vertical edge of the window frame, which is helpful for indicating the upright position.

[0008] As a further improvement of this utility model, a C-shaped groove is provided in the middle of the outer leaf and the inner leaf, and a horizontal shaft passes through the C-shaped groove. The horizontal shaft is fixed on the inner ring of the waterproof bearing; the outer ring of the waterproof bearing is fixed on the window frames on the left and right sides.

[0009] With this structure, when the inner ring rotates, it drives the blades to rotate through two horizontal axes, which allows the louvers to close, blocking both rain and wind.

[0010] As a further improvement of this utility model, a stepped shaft is fixed in the inner ring, the stepped shaft including a base shaft and a central shaft; the base shaft is fixed in the inner ring; the central shaft extends into the window frame and a first gear is coaxially fixed therein, a second gear meshes between adjacent upper and lower first gears, the second gear is rotatably sleeved on a round shaft; the round shaft is fixed on the window frame.

[0011] With this structure, rotating one blade can drive the other blades to rotate and close.

[0012] As a further improvement of this utility model, a through hole is opened in the upper window frame to extend the transmission chain formed by the first gear and the second gear; a galvanized square tube is fixedly installed on the upper part of the window frame; a through groove is also opened on the bottom surface of the galvanized square tube to allow the transmission chain to extend out; the uppermost end of the transmission chain is the first gear; the uppermost first gear is coaxially fixed to the transmission shaft, the transmission shaft is coaxial with the galvanized square tube, and the transmission shaft is rotatably mounted on the shaft seat; the shaft seat is fixed in the upper window frame and extends into the galvanized square tube; a transmission gear is also coaxially fixed to the transmission shaft at a distance from the first gear, and a worm gear meshes on the transmission gear; the worm gear has a threaded section and is inclinedly threadedly connected to a straight threaded sleeve; the straight threaded sleeve is inclinedly fixed in the bottom plate of the galvanized square tube and passes through the bottom plate; the worm gear passes through the bottom plate along the straight threaded sleeve, and a first pull ring is provided at the end of the worm gear; the first pull ring pulls a second pull ring, and the second pull ring is fixed to the upper end of the pull rod.

[0013] With this structure, the pull rod tilts and remains coaxial with the worm gear. Then, the pull rod rotates, driving the worm gear to rotate. The worm gear then drives the transmission gear, which in turn drives the entire transmission chain, causing the louvers to rotate collectively. This achieves the effect of controlling the closing of the outdoor louvers from inside the room. The threaded connection requires a large frictional force to rotate. When no external force is applied, the worm gear can remain stationary. If it is necessary to open the louvers again, the pull rod can be manually tilted back to be coaxial with the worm gear and then reversed to open the louvers.

[0014] As a further improvement of this utility model, a limiting plate is provided above the worm gear, and the limiting plate is located on the upper part of the limiting shell; the limiting shell is fixed to the bottom plate of the galvanized square tube.

[0015] With this structure, the limiting plate prevents the worm from moving excessively upward, thus preventing the worm from slipping off the transmission gear.

[0016] As a further improvement of this utility model, a limiting pin is provided on the bottom surface of the upper window frame. When the blade is upright, the limiting pin abuts against the inner side of the top blade.

[0017] With this structure, the limiting pin helps prevent the top blade from overturning into the interior.

[0018] As a further improvement of this utility model, when the blade is upright, the angle between the inner blade and the vertical surface is 45 degrees. 0 .

[0019] This structure is adopted to ensure an indoor air intake of 45°. 0 Slanted downwards, it is beneficial to choose a comfortable indoor air intake direction.

[0020] This invention uses herringbone-shaped blades, which can both provide ventilation and block and guide rainwater. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the facade installation structure for an embodiment.

[0022] Figure 2 This is a schematic diagram of the planar mounting structure for an embodiment.

[0023] Figure 3 This is a schematic diagram of the elevation structure of the herringbone-shaped blade.

[0024] Figure 4 This is a schematic diagram of the vertical installation structure of the transmission chain.

[0025] Figure 5 This is a schematic diagram of the structure after a section of the blade has been removed.

[0026] Figure 6 This is a schematic diagram of the installation structure of a waterproof bearing.

[0027] Figure 7 This is a schematic diagram of the assembly structure of the first gear.

[0028] Figure 8 This is a schematic diagram of the installation structure at the drive end of the transmission chain.

[0029] Attached reference numerals: 1. Window frame; 2. Insect screen; 3. Blade; 301. Outer blade; 302. Inner blade; 303. Top blade; 304. L-shaped fold; 305. C-shaped groove; 306. Horizontal axis; 4. Waterproof bearing; 401, inner ring; 402, outer ring; 5. Stepped shaft; 501. Base shaft; 502. Central shaft; 6. First gear; 7. Second gear; 8. Round shaft; 9. Through hole; 10. Galvanized square tube; 11. Through groove; 12. Drive shaft; 13. Shaft seat; 14. Drive gear; 15. Worm gear; 16. Straight threaded sleeve; 17. First pull ring; 18. Second pull ring; 19. Pull rod; 20. Limiting plate; 21. Limiting shell; 22. Limiting pin. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" 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 can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Example 1 like Figures 1-8 As shown, an exterior wall rainproof and insect-proof louver includes: Window frame 1, which is set at the four corners to form the facade frame; Insect-proof netting 2 is fixed to the window frame 1 along the four corners; The blade 3 is herringbone shaped and is positioned between the window frames 1. It includes an intersecting outer blade 301 and an inner blade 302. The bottom of the outer blade 301 is lower than the bottom of the inner blade 302, and the top of the outer blade 301 intersects the neck of the inner blade 302. The top of the inner blade 302 is also provided with a top blade 303. The top blade 303 is arc-shaped, convex inward and concave outward. Among the blades 3 of adjacent layers, the top blade 303 extends above the bottom position of the outer blade 301 of the upper layer blade 3.

[0033] With this structure, for fixed blades, the outer blade 301 is positioned lower, which is beneficial for blocking rainwater. The wind moves upward from below the outer blade 301 in a climbing manner. The top blade 303 further provides rainwater protection by intercepting the upward-moving rainwater. Finally, the wind climbs down along the inner blade 302 and enters the room, thus taking into account both rain protection and ventilation.

[0034] In this embodiment, both the outer leaf 301 and the inner leaf 302 of the blade 3 are provided with L-shaped folded edges 304 at their bottoms.

[0035] With this structure, when the blade 3 is upright, the vertical edge of the L-shaped fold 304 is parallel to the vertical edge of the window frame 1, which is helpful for indicating the upright state.

[0036] In this embodiment, a C-shaped groove 305 is provided in the middle of the outer leaf 301 and the inner leaf 302, and a horizontal shaft 306 passes through the C-shaped groove 305. The horizontal shaft 306 is fixed on the inner ring 401 of the waterproof bearing 4. The outer ring 402 of the waterproof bearing 4 is fixed on the window frames 1 on the left and right sides.

[0037] With this structure, when the inner ring 401 rotates, it drives the blades 3 to rotate through the two horizontal shafts 306, thereby closing the louvers and blocking rain and wind.

[0038] In this embodiment, a stepped shaft 5 is fixed in the inner ring 401. The stepped shaft 5 includes a base shaft 501 and a central shaft 502. The base shaft 501 is fixed in the inner ring 401. The central shaft 502 extends into the window frame 1 and is coaxially fixed with a first gear 6. A second gear 7 meshes between adjacent upper and lower first gears 6. The second gear 7 is rotatably mounted on a round shaft 8. The round shaft 8 is fixed to the window frame 1.

[0039] With this structure, rotating one blade 3 can drive the other blades 3 to rotate and close.

[0040] In this embodiment, a through hole 9 is provided in the upper window frame 1 to extend the transmission chain formed by the first gear 6 and the second gear 7; a galvanized square tube 10 is fixedly installed on the upper part of the window frame 1; a through groove 11 is also provided on the bottom surface of the galvanized square tube 10 to allow the transmission chain to extend out; the uppermost end of the transmission chain is the first gear 6; the uppermost first gear 6 is coaxially fixed to the transmission shaft 12, the transmission shaft 12 is coaxial with the galvanized square tube 10, and the transmission shaft 12 is rotatably mounted on a bearing seat 13; the bearing seat 13 is fixed in the upper window frame 1 and extends into the galvanized square tube 7. In the square tube 10, a transmission gear 14 is coaxially fixed to the transmission shaft 12 at a distance from the first gear 6. A worm 15 meshes with the transmission gear 14. The worm 15 has a threaded section and is inclinedly threadedly connected to a straight threaded sleeve 16. The straight threaded sleeve 16 is inclinedly fixed in the base plate of the galvanized square tube 10 and passes through the base plate. The worm 15 passes through the base plate along the straight threaded sleeve 16. A first pull ring 17 is provided at the end of the worm 15. The first pull ring 17 pulls a second pull ring 18. The second pull ring 18 is fixed to the upper end of the pull rod 19.

[0041] With this structure, the pull rod 19 is tilted and kept coaxial with the worm gear 15. Then the pull rod 19 rotates, which drives the worm gear 15 to rotate. The rotation of the worm gear 15 drives the transmission gear 14 to rotate, and the transmission gear 14 drives the entire transmission chain to rotate, so that the louvers of the louvers rotate collectively, so as to achieve the effect of controlling the closing of the louvers outside from inside. The threaded connection requires a large friction force to rotate. When no external force is applied, the worm gear 15 can remain stationary. If it is necessary to open the louvers again, the pull rod 19 can be manually tilted again to be coaxial with the worm gear 15, and then reversed to open the louvers.

[0042] In this embodiment, a limiting plate 20 is provided above the worm gear 15, and the limiting plate 20 is provided on the upper part of the limiting shell 21; the limiting shell 21 is fixed on the bottom plate of the galvanized square tube 10.

[0043] With this structure, the limiting plate 20 prevents the worm gear 15 from moving excessively upward, thereby preventing the worm gear 15 from slipping off the transmission gear 14.

[0044] In this embodiment, a limiting pin 22 is provided on the bottom surface of the upper window frame 1. When the blade 3 is upright, the limiting pin 22 abuts against the inner side of the top blade 303.

[0045] With this structure, the limiting pin 22 helps prevent the top leaf 303 from overturning into the interior.

[0046] In this embodiment, when the blade 3 is upright, the angle between the inner blade 302 and the vertical plane is 45 degrees. 0 .

[0047] This structure is adopted to ensure an indoor air intake of 45°. 0Slanted downwards, it is beneficial to choose a comfortable indoor air intake direction.

[0048] This invention uses herringbone-shaped blades, which can both provide ventilation and block and guide rainwater.

[0049] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.

Claims

1. A type of rainproof and insect-proof louver for exterior walls, characterized in that... include: The window frame (1) is set at the four corners to form the facade frame; Insect-proof netting (2) is fixed to the window frame (1) at the four corners; The blade (3) is shaped like a herringbone and is set between the window frames (1). It includes an intersecting outer blade (301) and an inner blade (302). The bottom of the outer blade (301) is lower than the bottom of the inner blade (302). The top of the outer blade (301) crosses the neck of the inner blade (302). The top of the inner blade (302) is also provided with a top blade (303). The top blade (303) is arc-shaped, convex inward and concave outward. Among the blades (3) of the upper and lower adjacent layers, the top blade (303) extends into the bottom position of the outer blade (301) of the upper layer blade (3).

2. The rainproof and insect-proof louver for exterior walls according to claim 1, characterized in that... The bottom of the outer leaf (301) and inner leaf (302) of the blade (3) are both provided with L-shaped folded edges (304).

3. The rainproof and insect-proof louver for exterior walls according to claim 1, characterized in that... The outer leaf (301) and inner leaf (302) are provided with a C-shaped groove (305) in the middle, and a horizontal shaft (306) is inserted in the C-shaped groove (305). The horizontal shaft (306) is fixed on the inner ring (401) of the waterproof bearing (4); the outer ring (402) of the waterproof bearing (4) is fixed on the window frame (1) on the left and right sides.

4. The rainproof and insect-proof louver for exterior walls according to claim 3, characterized in that, The inner ring (401) has a fixed stepped shaft (5), which includes a base shaft (501) and a central shaft (502). The base shaft (501) is fixed in the inner ring (401). The central shaft (502) extends into the window frame (1) and is coaxially fixed with a first gear (6). A second gear (7) meshes between adjacent upper and lower first gears (6). The second gear (7) is rotatably mounted on a round shaft (8). The round shaft (8) is fixed on the window frame (1).

5. The rainproof and insect-proof louver for exterior walls according to claim 4, characterized in that... A through hole (9) is opened in the upper window frame (1) to allow the transmission chain formed by the first gear (6) and the second gear (7) to extend; a galvanized square tube (10) is fixedly installed on the upper part of the window frame (1); a through groove (11) is also opened on the bottom surface of the galvanized square tube (10) to allow the transmission chain to extend; the uppermost end of the transmission chain is the first gear (6); the uppermost first gear (6) is coaxially fixed to the transmission shaft (12), the transmission shaft (12) is coaxial with the galvanized square tube (10), and the transmission shaft (12) is rotatably mounted on the bearing seat (13); the bearing seat (13) is fixed in the upper window frame (1) and extends into the galvanized square tube (9). In 10), a transmission gear (14) is coaxially fixed to the transmission shaft (12) at a distance from the first gear (6). A worm (15) meshes with the transmission gear (14). The worm (15) has a threaded section and is inclinedly threaded into a straight threaded sleeve (16). The straight threaded sleeve (16) is inclinedly fixed in the bottom plate of the galvanized square tube (10) and passes through the bottom plate. The worm (15) passes through the bottom plate along the straight threaded sleeve (16). A first pull ring (17) is provided at the end of the worm. The first pull ring (17) pulls a second pull ring (18). The second pull ring (18) is fixed to the upper end of the pull rod (19).

6. The rainproof and insect-proof louver for exterior walls according to claim 5, characterized in that... A limiting plate (20) is provided above the worm (15), and the limiting plate (20) is provided on the upper part of the limiting shell (21); the limiting shell (21) is fixed on the bottom plate of the galvanized square tube (10).

7. The rainproof and insect-proof louver for exterior walls according to claim 6, characterized in that... A limiting pin (22) is provided on the bottom surface of the upper window frame (1). When the blade (3) is upright, the limiting pin (22) abuts against the inner side of the top blade (303).

8. The rainproof and insect-proof louver for exterior walls according to claim 1, characterized in that... When the blade (3) is upright, the angle between the inner blade (302) and the vertical plane is 45°. 0 .

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