UNIDIRECTIONALLY SWINGING LINKAGE SHUTTER, LINKAGE SHUTTER SKYLIGHT ROOF, AND SHUTTER BLADES
20220235602 · 2022-07-28
Inventors
Cpc classification
E06B7/14
FIXED CONSTRUCTIONS
E06B7/28
FIXED CONSTRUCTIONS
International classification
Abstract
The invention discloses an unidirectionally swinging linkage shutter, a roof with the shutter and a louver blade. The shutter includes a frame and a louver blade, the frame includes a longitudinal keel, the longitudinal keel includes longitudinal keel body and a positioning bar, a pin hole is defined on the positioning bar and beyond the wall, one end of the louver blade close to the indoor is hinged on the pin hole via a pin shaft, the louver blade includes a protruding section protruding outward, a linkage connection position is defined on the protruding section. The roof with the shutter includes a transverse roof beam, a longitudinal roof beam and a louver blade, the longitudinal keel includes a longitudinal keel body and a positioning bar, the positioning bar is provided with a pin hole. The structure of the louver blade is the same as above. In the present invention, the linkage bar will not interfere after the louver blades are closed, and the sealing performance is good, and the water and wind shielding effects of the louver blades are good; it is convenient to install and disassemble the louver blades on site, and can avoid the arbitrary removal of the louver blades from the outside.
Claims
1. An unidirectionally swinging linkage shutter, comprising: a frame and a louver blade; the frame includes a transverse keel and a longitudinal keel; wherein, the longitudinal keel includes a longitudinal keel body and a positioning bar, the positioning bar protrudes from the longitudinal keel body towards an outdoor side, the positioning bar is provided with the same number of pin holes as the louver blades, the pin hole is located beyond the outdoor side of a wall used to install the longitudinal keel body; the louver blade includes a blade body, the length of the blade body is greater than the distance between the inner sides of two longitudinal keel bodies, the blade body is provided with a swing shaft end and an outer swing end, the swing shaft end is located at one end of the blade body, the outer swing end is located at the other end of the blade body, a pin accommodating hole is provided at the swing shaft end, the outer swing end is provided with a protruding section protruding to the outer side of the wall, a linkage connection position is defined on the protruding section; when the louver blade is closed, all the linkage connection positions are farther away from the outer side of the wall than all the pin accommodating holes; the louver blade is hinged to the positioning bar via a pin shaft passing through the pin hole and the pin accommodating hole, on the linkage connection position of all the louver blades in the same longitudinal direction is provided with a linkage bar, the linkage bar is located on the outdoor side, and the linkage connecting bar is farther away from the outdoor side than the pin hole; a protective strip is fixed on the longitudinal keel to block the pin shaft on the outdoor side.
2. The shutter as set forth in claim 1, wherein: a drainage groove is arranged on the longitudinal keel body on the side of the positioning bar close to the louver blade, and a drainage groove is located on the outdoor side of the wall for installing the longitudinal keel body.
3. The shutter as set forth in claim 2, wherein: the longitudinal keel body includes a keel beam, a ridge and a stiffened plate, the ridge protrudes from the outside of the keel beam, the stiffened plate protrudes from the keel beam to the outdoor side and is located on the side close to the louver blade, the positioning bar is connected on the ridge, the drainage groove is formed between the ridge and the stiffened plate.
4. The shutter as set forth in claim 3, wherein: a sealing strip groove is longitudinally extended at the outdoor side of the stiffened plate, and the sealing strip groove is clamped with a longitudinal sealing strip which is in contact with the louver blade.
5. The shutter as set forth in claim 3, wherein a locking groove is provided at the outdoor side end of the ridge, one end of the positioning bar is clamped in the locking grove, the other end of the positioning bar faces the outdoor side, a positioning bar fastener is provided between the positioning bar and the ridge.
6. The shutter as set forth in claim 1, wherein the cross section of the protective strip includes a fixed portion, a conceding portion connected to the fixed portion, and a clamping portion connected to the conceding portion, the fixed portion and the longitudinal keel body are connected by a fastener, a conceding space is formed between the conceding portion and the protective strip, the clamping portion is clamped on the protective strip.
7. The shutter as set forth in claim 6, wherein the fixed portion is positioned on the side wall of the longitudinal keel body by a fastener passing from the wall to the direction of the louver blade, the outdoor side of the wall has a resisting portion, the resisting portion abuts against the frame, and the resisting portion blocks the fastener.
8. The shutter as set forth in claim 3, wherein the protective strip is provided with a first blocking portion located on the outdoor side of the drainage groove, the longitudinal keel body is provided with a second blocking portion located on the outdoor side of the drainage groove on the side of the drainage groove close to the louver blade, the first blocking portion and the second blocking portion are staggered in the outdoor side direction.
9. The shutter as set forth in claim 1, wherein an anti-mosquito net keel is installed on an indoor side of the frame, the cross section of the anti-mosquito net keel includes an inserting portion, an anti-mosquito net blocking portion, and an anti-mosquito net fixed portion; a positioning slot is provided on the frame, and a positioning protrusion locked into the positioning slot is provided on the insertion portion; the anti-mosquito net blocking portion is connected to the indoor side of the inserting portion, the anti-mosquito net blocking portion leans against on the frame, and the anti-mosquito net fixed portion is connected to the inserting portion or the anti-mosquito net blocking portion.
10. The shutter as set forth in claim 1, wherein the cross section of the protruding section includes a first connecting portion, a transition portion and a second portion, the first connecting portion extends from the outer end of the blade body and extends to the outer side of the blade body, and the transition portion is connected to the outer end of the first connecting portion, the second connecting portion is connected to the transition portion and extends toward the inner surface of the blade body.
11. The shutter as set forth in claim 1, wherein a sealing structure is provided at the other end of the blade body; the sealing structure includes a sealing strip fixing portion and a matching portion connected to the outer end of the sealing strip fixing portion; the cross section of the mating portion is in the shape of a circular arc with a middle portion protruding to the outdoor side; the cross section of the sealing strip fixing portion is two limiting plates, and the two limiting plates extend outward from the outer end of the blade body, a sealing strip clamping groove is formed between the two limiting plates.
12. The shutter as set forth in claim 1, wherein a baffle is provided on the outer surface of the blade body close to the swing shaft end, and the baffle extends toward the outer side of the blade body.
13. The shutter as set forth in claim 1, wherein the blade body includes two blade plates, a transverse slot is formed between the two blade plates, a window communicating with the transverse slot is provided on the blade plate, and a transparent plate is inserted into the transverse slot.
14. The shutter as set forth in claim 1, wherein a switch device is provided between at least one louver blade and the frame; the switch device includes a driving wheel and a driving rod; the driving wheel is fixed on the louver blade, the rotation center of the driving wheel is coaxial with the center of the pin accommodating hole, and the driving wheel is a worm gear; the driving rod passes through the frame, and the driving rod is a worm, which is engaged with the worm gear.
15. The shutter as set forth in claim 1, wherein the linkage connection position is a hinge hole, a waist-shaped hole is provided on the linkage bar corresponding to the hinged hole, and a pin passes through the hinged hole and the waist-shaped hole.
16. A roof with the linkage shutter, comprising: a transverse roof beam and a longitudinal roof beam, the longitudinal roof beam is arranged on the transverse roof beam; there are more than two longitudinal roof beams; wherein, a louver blade is arranged between adjacent longitudinal roof beams; the longitudinal roof beam includes a longitudinal keel, the longitudinal keel includes a longitudinal keel body and a positioning bar, the positioning bar protrudes from the longitudinal keel body towards an outdoor side, the positioning bar is provided with the same number of pin holes as the louver blades, the louver blade includes a blade body, the length of the blade body is greater than the distance between the inner sides of two longitudinal keel bodies, the blade body is provided with a swing shaft end and an outer swing end, the swing shaft end is located at one end of the blade body, the outer swing end is located at the other end of the blade body, a pin accommodating hole is provided at the swing shaft end, the outer swing end is provided with a protruding section protruding to the outer side of the wall, a linkage connection position is defined on the protruding section; when the louver blade is closed, all the linkage connection positions are farther away from the outer side of the longitudinal roof beam than all the pin accommodating holes; the louver blade is hinged to the positioning bar via a pin shaft passing through the pin hole and the pin accommodating hole, on the linkage connection position of all the louver blades in the same longitudinal direction is provided with a linkage bar, the linkage bar is located on the outdoor side, and the linkage connecting bar is farther away from the outdoor side than the pin hole; a protective strip is fixed on the longitudinal keel to block the pin shaft on the outdoor side.
17. The roof as set forth in claim 16, wherein the longitudinal roof beam includes a longitudinal roof beam body, two positioning plates extend upward from both sides of the longitudinal roof beam body, an accommodating slot is defined between the two positioning plates; the longitudinal keel body is provided with a positioning portion, the longitudinal keel body is received in the accommodating slot, the positioning portion is connected with the positioning plate.
18. The roof as set forth in claim 16, wherein a drainage groove is arranged on the longitudinal keel body on the side of the positioning bar close to the louver blade,
19. The roof as set forth in claim 18, wherein the longitudinal keel body includes a keel beam, a ridge and a stiffened plate, the ridge protrudes from the outside of the keel beam, the stiffened plate protrudes from the keel beam to the outdoor side and is located on the side close to the louver blade, the positioning bar is movably connected on the ridge, the drainage groove is formed between the ridge and the stiffened plate.
20. The roof as set forth in claim 19, wherein a sealing strip groove is longitudinally extended at the outside of the stiffened plate, and the sealing strip groove is clamped with a longitudinal sealing strip which is in contact with the louver blade.
21. The roof as set forth in claim 19, wherein a locking groove is provided at the outside end of the ridge, one end of the positioning bar is clamped in the locking grove, the other end of the positioning bar faces the outside, a positioning bar fastener is provided between the positioning bar and the ridge.
22. The roof as set forth in claim 16, wherein the cross section of the protective strip includes a fixed portion, a conceding portion connected to the fixed portion, and a clamping portion connected to the conceding portion, the fixed portion and the longitudinal keel body are connected by a fastener, a conceding space is formed between the conceding portion and the protective strip, the clamping portion is clamped on the protective strip.
23. The roof as set forth in claim 16, wherein the cross section of the protruding section includes a first connecting portion, a transition portion and a second portion, the first connecting portion extends from the outer end of the blade body and extends to the outer side of the blade body, and the transition portion is connected to the outer end of the first connecting portion, the second connecting portion is connected to the transition portion and extends toward the inner surface of the blade body.
24. The roof as set forth in claim 16, wherein a sealing structure is provided at the outer end of the blade body; the sealing structure includes a sealing strip fixing portion and a matching portion connected to the outer end of the sealing strip fixing portion; the cross section of the mating portion is in the shape of a circular arc with a middle portion protruding to the outdoor side; the cross section of the sealing strip fixing portion is two limiting plates, and the two limiting plates extend outward from the outer end of the blade body, a sealing strip clamping groove is formed between the two limiting plates.
25. The roof as set forth in claim 16, wherein a baffle is provided on the outer surface of the blade body close to the swing shaft end, and the baffle extends toward the outer side of the blade body.
26. The roof as set forth in claim 16, wherein the blade body includes two blade plates, a transverse slot is formed between the two blade plates, a window communicating with the transverse slot is provided on the blade plate, and a transparent plate is inserted into the transverse slot.
27. The roof as set forth in claim 16, wherein a switch device is provided between at least one louver blade and the frame; the switch device includes a driving wheel and a driving rod; the driving wheel is fixed on the louver blade, the rotation center of the driving wheel is coaxial with the center of the pin accommodating hole, and the driving wheel is a worm gear; the driving rod passes through the frame, and the driving rod is a worm, which is engaged with the worm gear.
28. The roof as set forth in claim 16, wherein the linkage connection position is a hinge hole, a waist-shaped hole is provided on the linkage bar corresponding to the hinged hole, and a pin passes through the hinged hole and the waist-shaped hole.
29. A louver blade, comprising: a blade body, wherein, the blade body is provided with a swing shaft end and an outer swing end, the swing shaft end is located at one end of the blade body, the outer swing end is located at the other end of the blade body, a pin accommodating hole is provided at the swing shaft end, the outer swing end is provided with a protruding section protruding to the outer side of the wall, a linkage connection position is defined on the protruding section; a sealing structure is provided at the outer end of the blade body; the sealing structure includes a sealing strip fixing portion and a matching portion connected to the outer end of the sealing strip fixing portion; the cross section of the mating portion is in the shape of a circular arc with a middle portion protruding to the outdoor side; the cross section of the sealing strip fixing portion is two limiting plates, and the two limiting plates extend outward from the outer end of the blade body, a sealing strip clamping groove is formed between the two limiting plates, a sealing strip is defined in the sealing strip clamping groove.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0046] Many aspects of the embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
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DETAILED DESCRIPTION OF THE INVENTION
[0081] The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one.”
The First Embodiment
[0082] As shown in
[0083] As shown in
[0084] As shown in
[0085] In the present invention, as shown in
[0086] As shown in
[0087] One of the structures of the longitudinal keel 12 is as shown in
[0088] A sealing strip groove 1213a is longitudinally extended at the outer end of the stiffened plate 1213, and the sealing strip groove 1213a is clamped with a longitudinal sealing strip (not shown) which is in contact with the louver blade 2.
[0089] In the present invention, the pin hole on the positioning bar 122 is located beyond the outdoor side of the wall for installing the frame 1, and the drainage groove 124 is also located on the outdoor side of the wall for installing the frame 1.
[0090] In practical applications, the louver blade used is an outer unidirectionally swinging type, the louver blade 2 is hinged on the outer side of the frame 1, so that when the longitudinal keel 12 is formed, the positioning bar 122 for installing the louver blade 2 is provided on the outer side of the longitudinal keel 12, and the pin hole is provided on the positioning bar 122. The process is to first form the longitudinal keel 12, and then process the pin hole. Due to the longitudinal keel 12 with the above structure, the positioning bar 122 is movably connected to the longitudinal keel body 121, the pin hole can be machined on the positioning bar 122 and then installed on the longitudinal keel body 121, reducing the processing cost and difficulty. As an alternative of the longitudinal keel 12, as shown in
[0091] A second blocking portion 125 is provided on the stiffened plate 1213, and is located outside the drainage groove 124 at the side of the drainage groove 124 close to the frame space.
[0092] As shown in
[0093] As shown in
[0094] As shown in
[0095] As shown in
[0096] A sealing structure 24 is provided at the outer swing end 217 of the blade body 21; the sealing structure 24 includes a sealing strip fixing portion 241 and a matching portion 242 connected to the sealing strip fixing portion 241; the cross section of the sealing strip fixing portion 241 is two limiting plates 2411, and the two limiting plates 2411 extend outward from the outer end of the blade body 21, a sealing strip clamping groove 2413 is formed between the two limiting plates 2411, on the inner wall of the sealing strip clamping groove 2413 on the limiting plate 2411, there are provided clamping teeth 2412 inclined toward the inner end of the blade body 21. The cross section of the mating portion 242 is in the shape of a circular arc with a middle portion protruding from the outer side surface. The lower end of the second connecting portion 233 is connected to the matching portion 242.
[0097] As shown in
[0098] As shown in
[0099] The louver blade 2 is mounted on the positioning bar 122 by a pin shaft passing through the pin hole and the pin accommodating hole 22. The installation process is as follows, first align the pin accommodating hole 22 of the louver blade 2 with the pin hole, then, the pin shaft is passed through the pin hole and the pin accommodating hole 22 from the position of the positioning bar 122 away from the frame space, so that the hinged connection of the louver blade 2 is realized.
[0100] After the louver blade 2 is installed, in the transverse direction, the length of the louver blade 2 is greater than the distance between the inner sides of two longitudinal keels 12. Via the sealing strip 5 in the sealing strip groove 1213a, the gap between two ends of the louver blade 2 and the outer surface of the longitudinal keel 12 is sealed, and the gap between the upper and lower louver blade 2 is sealed.
[0101] As shown in
[0102] The longitudinal keel 12 and the uppermost transverse keel 11 are fixed with a protective strip 7 which shields and blocks the pin shaft on the outside. As shown in
[0103] The protective strip 7 is provided with a first blocking portion 75 located on the outdoor side of the drainage groove 124, the first blocking portion 75 and the second blocking portion 125 are arranged staggered in the outdoor side direction, the projections of the first blocking portion 75 and the second blocking portion 125 in the indoor and outer directions may overlap, or may not overlap. The second blocking portion 125 is located near the indoor side of the first blocking portion 75.
[0104] As shown in
[0105] As shown in
[0106] As shown in
[0107] The shutter in this embodiment, if the driving rod is driven to rotate by hand or motor, the driving wheel is driven to rotate by the rotation of the driving rod, so as to realize the swing of the louver blades connected with the driving wheel, and then all the louver blades are driven to swing synchronously via the connecting rod to realize the opening and closing of shutter.
[0108] The louver blade in this embodiment is provided with the protruding section, the protruding section are defined protrudingly, and the linkage connecting position for connecting the linkage bar is arranged on the protruding section, the linkage connecting position is farther away from the wall compared with the pin accommodating hole. Compared with the prior art, there is no necessary to provide an avoidance position on the frame for installing the louver blade, that is, it can have good sealing performance after the louver blade is closed without interference. Due to the protruding section, when louver blades are opened, the protruding section can effectively reduce the entry of wind and rain into the room. For the swing-out shutter, the mounting holes for installing the louver blades are located beyond the outside of the wall, so that the louver blades can be installed and removed outdoors. Of course, the pin shaft is defined outdoors. In this case, the protective strip is provided for better anti-theft. In the above structure, the louver blades are located outside the wall. Therefore, after the louver blades are opened, even if the rainwater leaks from the inner end of the louver blades, the rainwater will be discharged from the outside and will not enter the room, so that the discharge performance of the whole shutter is very good.
[0109] Due to the transparent plate, the indoor brightness is improved when the louver blades are opened or closed. Due to the transverse slot, it is convenient to install and remove the transparent plate. The support bar is used to support the transparent plate, so that the contact area between the transparent plate and the support bar is small, which reduces the resistance of installing and disassembling the transparent plate, and better support the transparent plate.
[0110] Due to the drainage grooves, most of the rain and wind from the outside to the shutters will be guided to two sides via the louver blades and enter the drainage grooves, and there is no protective strip installed on the horizontal keel at the lower end, so that the rainwater will be better discharged from the drainage groove, and the wind flow can reduce the noise such as “whistle” at the louver blades. Since the first blocking portion and the second blocking portion are provided, in this way, it is possible to effectively prevent sundries and the like from entering the drainage groove and jamming the drainage groove. As shown in
[0111] In this embodiment, the pin shaft used to install the louver blade is installed from the outside, which facilitates the installation and removal of the pin shaft. The subsequent problem is that the pin is easy to be disassembled. To avoid this problem, a protective strip is installed by fixing the protective strip with screws from the inside, the pin shaft is covered by the protective strip. In this way, it can better play the role of anti-theft.
[0112] Due to the longitudinal sealing strip, when the louver blades are closed, the sealing effect is good, which can effectively prevent rainwater and wind from entering the room.
The Second Embodiment
[0113] As shown in
[0114] The roof beam 100 includes an upper roof beam 101 and a lower roof beam 102. The longitudinal roof beam 200 is connected between the roof upper beam 101 and the lower roof beam 102, and two or more longitudinal roof beams 200 are provided. In this embodiment, the roof is Inverted-V-shaped.
[0115] The roof beam 100 is an H-beam. As shown in
[0116] As shown in
[0117] As shown in
[0118] One of the structures of the longitudinal keel 12, as shown in
[0119] In practical applications, the louver blade used is an outer unidirectionally swinging type, the louver blade 2 is hinged on the outer side of the longitudinal keel 12, so that when the longitudinal keel 12 is formed, the positioning bar 122 for installing the louver blade 2 is provided on the outer side of the longitudinal keel 12, and the pin hole is provided on the positioning bar 122. The process is to first form the longitudinal keel 12, and then process the pin hole. Due to the longitudinal keel 12 with the above structure, the positioning bar 122 is movably connected to the longitudinal keel body 121, the pin hole can be machined on the positioning bar 122 and then installed on the longitudinal keel body 121, reducing the processing cost and difficulty.
[0120] As an alternative of the longitudinal keel 12, the positioning bar 122 and the longitudinal keel body 121 are integral. The longitudinal keel body 121 includes a keel beam 1211, and a stiffened plate 1213, the stiffened plate 1213 protrudes from the keel beam 1211 to the outside and is located on the side close to the louver blade 2. A drainage groove 124 is formed between the positioning bar and the stiffened plate 1213. A sealing strip groove 1213a is longitudinally extended at the outer end of the stiffened plate 1213, and the sealing strip groove 1213a is clamped with a longitudinal sealing strip (not shown) which is in contact with the louver blade 2.
[0121] In the third structure of the longitudinal keel 12, the positioning bar 122 and the longitudinal keel body 121 are an integral structure. The positioning bar 122 extends from the longitudinal keel body 121 to the outside.
[0122] The longitudinal keel body 121 is provided with a positioning portion 123, and the positioning portion 123 is connected with the positioning plate 2011 by screws, which facilitates the installation and disassembly of the longitudinal keel 12 and the louver blade 2.
[0123] As shown in
[0124] As shown in
[0125] As shown in
[0126] A sealing structure 24 is provided at the outer swing end 217 of the blade body 21; the sealing structure 24 includes a sealing strip fixing portion 241 and a matching portion 242 connected to the sealing strip fixing portion 241; the cross section of the sealing strip fixing portion 241 is two limiting plates 2411, and the two limiting plates 2411 extend outward from the outer end of the blade body 21, a sealing strip clamping groove 2413 is formed between the two limiting plates 2411, on the inner wall of the sealing strip clamping groove 2413 on the limiting plate 2411, there are provided clamping teeth 2412 inclined toward the inner end of the blade body 21. The cross section of the mating portion 242 is in the shape of a circular arc with a middle portion protruding from the outer side surface. The lower end of the second connecting portion 233 is connected to the matching portion 242.
[0127] As shown in
[0128] As shown in
[0129] The louver blade 2 is mounted on the positioning bar 122 by a pin shaft passing through the pin hole and the pin accommodating hole 22. The installation process is as follows, first align the pin accommodating hole 22 of the louver blade 2 with the pin hole, then, the pin shaft is passed through the pin hole and the pin accommodating hole 22 from the position of the positioning bar 122 away from the frame space, so that the hinged connection of the louver blade 2 is realized.
[0130] After the louver blade 2 is installed, in the transverse direction, the length of the louver blade 2 is greater than the distance between the inner sides of two longitudinal keels 12. Via the sealing strip 5 in the sealing strip groove 1213a, the gap between two ends of the louver blade 2 and the outer surface of the longitudinal keel 12 is sealed, and the gap between the upper and lower louver blade 2 is sealed.
[0131] As shown in
[0132] As shown in
[0133] The protective strip 7 is provided with a first blocking portion 75 located on the outside of the drainage groove 124
[0134] As shown in
[0135] The roof with the linkage shutter in this embodiment, if the driving rod is driven to rotate by hand or motor, the driving wheel is driven to rotate by the rotation of the driving rod, so as to realize the swing of the louver blades connected with the driving wheel, and then all the louver blades are driven to swing synchronously via the connecting rod to realize the opening and closing of louver blade of the roof.
[0136] The louver blade in this embodiment is provided with the protruding section, the protruding section are defined protrudingly, and the linkage connecting position for connecting the linkage bar is arranged on the protruding section, the linkage connecting position is farther away from the longitudinal roof beam compared with the pin accommodating hole. Compared with the prior art, there is no necessary to provide an avoidance position on the longitudinal keel for installing the louver blade, that is, it can have good sealing performance after the louver blade is closed without interference. Due to the protruding section, when louver blades are opened, the protruding section can effectively reduce the entry of wind and rain into the room. For the roof with the linkage shutter, the mounting holes for installing the louver blades are located beyond the outside of the wall, so that the louver blades can be installed and removed outdoors. Of course, the pin shaft is defined outdoors. In this case, the protective strip is provided for better anti-theft. In the above structure, the louver blades are located beyond the longitudinal roof beam body. Therefore, after the louver blades are opened, even if the rainwater leaks from the inner end of the louver blades, the rainwater will be discharged from the outside and will not enter the room, so that the discharge performance of the whole shutter is very good.
[0137] Due to the transparent plate, when the louver blades are opened or closed, the indoor brightness is improved. Due to the transverse slot, it is convenient to install and remove the transparent plate. The support bar is used to support the transparent plate, so that the contact area between the transparent plate and the support bar is small, which reduces the resistance of installing and disassembling the transparent plate, and better support the transparent plate.
[0138] Due to the drainage grooves, most of the rain and wind from the outside to the roof with the linkage shutter will be guided to two sides via the louver blades and enter the drainage grooves, so that the rainwater will be better discharged from the drainage groove, and the wind flow can reduce the noise such as “whistle” at the louver blades.
[0139] In this embodiment, the pin shaft used to install the louver blade is installed from the outside, which facilitates the installation and removal of the pin shaft. The subsequent problem is that the pin is easy to be disassembled. To avoid this problem, a protective strip is installed by fixing the protective strip with screws from the inside, the pin shaft is covered by the protective strip. In this way, it can better play the role of anti-theft.
[0140] Due to the longitudinal sealing strip, when the louver blades are closed, the sealing effect is good, which can effectively prevent rainwater and wind from entering the room.
[0141] It is to be understood, however, that even though numerous characteristics and advantages have been set forth in the foregoing description of embodiments, together with details of the structures and functions of the embodiments, the disclosure is illustrative only and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.