A T-shaped blade with large span and small deflection applied to blinds and curtain walls

Abstract

The present invention discloses a T-shaped blade with large span and small deflection for blinds and curtain walls, which includes a reflector, a light guide plate and a groove. The reflector is used to reflect the incident light irradiated on the reflector; the light guide plate is connected to the reflector and is used to deflect the incident light irradiated on the light guide plate; the groove extends along the longitudinal direction of the light guide plate to reduce the deflection of the blind blade. The groove of the blind blade can solve the problem of excessive deflection of the blind blade caused by its own weight in the prior art, greatly reduce the deflection of the blind blade, avoid excessive deformation of the blind blade due to insufficient stiffness, so as to achieve the purpose of large-span deflection and reduction of the number of blade ladders. In addition, when the T-shaped blade of the present invention closes the blind blades, its groove will not affect the closing of the blind blades, can ensure uniform stacking of the blind blades, the stacking height of the blind blades is small, and the width of its groove will not excessively affect the light guiding effect of the light guide plate.

Description

Technical Field

[0001] The present invention relates to the technical field of blinds, and in particular to a T-shaped blade with a large span and small deflection applied to blinds and curtain walls. Background Art

[0002] At present, the most common inner sunshade blind system in the sunshade market has arc-shaped blades. Most of these blades are formed by very thin aluminum strips. Through multiple sets of ladder strips, these blades can be separated into equal intervals and assembled into blinds. Since these arc-shaped blades are very thin, the deflection caused by their own weight is large. A set of ladder strips needs to be arranged at a relatively small distance to support the blades to keep the blades in a horizontal state. Due to too many ladder strip ropes, it brings a poor appearance. Moreover, the ladder strip ropes are easy to be contaminated with dust and not easy to clean, which leads to the growth of bacteria and infects the human respiratory system, thus affecting human health.

[0003] The mirror blades of variable-spacing sunshade and light-guiding blinds are composed of a reflector and a light guide plate. The reflector reflects the sunlight irradiated on it to the outside, and the light guide plate guides the sunlight irradiated on it to the indoor ceiling or the back of the upper blade, and then diffusely reflects it to the desktop. Usually, the light guide plate of the blade is an upwardly curved mirror cylinder, and the reflector has a cylindrical surface form with different cross-sections. These blades also have the same defects as the arc-shaped blades, that is, the deflection caused by the self-weight of the blades is large, and a set of ladder strips needs to be set at a relatively small distance to overcome these defects. Several blades with stiffeners published in DE19929138A1 are either suitable for being fixed or suitable for rotating, and are not suitable for the situation where the blades are lifted and folded. DE19543812A1 published several blades with small deflections. When these blades are made of ultra-thin aluminum strips and the ladder strips are only arranged at both ends of the blades, their stiffness is not enough, so the deflection of the blades is very large. CN105178831B published an optimized design method for sunshade and light-guiding blades and obtained the best sunshade and light-guiding blades, but this kind of blade does not consider reducing the number of ladder strips or being used for variable-spacing blinds with a large span, small deflection and small blade stacking height where the ladder strips are only arranged at both ends of the blades. Summary of the Invention

[0004] The purpose of the present invention is to provide a T-shaped blade with a large span and small deflection applied to blinds and curtain walls to solve the technical problem of excessive deflection caused by the self-weight of the blades in the prior art.

[0005] To achieve the above purpose, in the first aspect, the technical solution of the present invention provides a large-span and small-deflection blind blade applied to a blind, including:

[0006] A reflector for reflecting the incident light irradiated on the reflector;

[0007] A light guide plate, which is connected to the reflector and is used to guide the incident light irradiated on the light guide plate;

[0008] A groove, which is arranged on the light guide plate and extends along the longitudinal direction of the light guide plate.

[0009] As one of the preferred solutions, the cross-section of the groove is U-shaped, and the slopes of both sides of the groove are 5-15°.

[0010] As one of the preferred solutions, the light guide plate is an arc-shaped light guide plate, and the light guide plate is interrupted by the groove to form a front part and a rear part of the light guide plate.

[0011] As one of the preferred solutions, the vane further includes:

[0012] A transition plate, which extends leftward and upward from the top of the left side of the groove to intersect with the right side of the reflector;

[0013] A folding plate, which extends rightward and downward from the top of the right side of the groove to intersect with the light guide plate, and the included angle between the folding plate and the right side of the groove is 40-50°;

[0014] Wherein, the light guide plate is an arc-shaped light guide plate whose left side extends leftward to intersect with the right side of the groove, or the light guide plate is an arc-shaped light guide plate whose left side extends leftward and downward to be tangent to the bottom of the groove.

[0015] As one of the preferred solutions, the vane further includes:

[0016] A transition plate, which extends leftward and upward from the top of the left side of the groove to intersect with the right side of the reflector;

[0017] Wherein, the light guide plate is an arc-shaped light guide plate whose left side extends leftward to intersect with the right side of the groove, or the light guide plate is an arc-shaped light guide plate whose left side extends leftward and downward to be tangent to the bottom of the groove.

[0018] As one of the preferred solutions, a bending edge is arranged on the side edge of the light guide plate away from the reflector, the bending edge inclines rightward and downward relative to the vertical direction, and the included angle between the bending edge and the vertical direction is 9-15°.

[0019] In a second aspect, the technical solution of the present invention provides a shutter, which is characterized by including:

[0020] A frame, which includes a top rail, a bottom rail and side guide rails;

[0021] A lifting and flipping device, which is arranged in the top rail;

[0022] A plurality of blades as described in any of the above technical solutions, the plurality of blades are disposed between the top rail and the bottom rail, and, a section of the groove is cut off at each end of the plurality of blades so that the plurality of blades do not interfere with each other when stacked;

[0023] A plurality of end joints, the plurality of end joints are respectively disposed at the ends of the plurality of blades, and, the plurality of end joints can be received in the side guide rails;

[0024] A lifting rope, the lifting rope passes through the end joint, and, the lower end of the lifting rope is connected to the bottom rail, and the upper end of the lifting rope is connected to the lifting wheel in the lifting and flipping device;

[0025] A ladder belt group, the ladder belt group is respectively connected to the plurality of end joints, and, the upper end of the ladder belt group is connected to the reel mechanism in the lifting and flipping device, and the lower end of the ladder belt group is connected to the bottom rail;

[0026] Wherein, the shutter includes a retracted state, an unfolded state, a variable pitch state and a flipped state. In the retracted state, the lifting wheel in the lifting and flipping device lifts the bottom rail through the lifting rope and stacks and closes the plurality of blades in sequence from bottom to top; in the unfolded state, the lifting wheel in the lifting and flipping device is lowered through the lifting rope, and the bottom rail and the plurality of blades are unfolded in sequence from top to bottom by their own weights; in the variable pitch and flipped states, the reel mechanism in the lifting and flipping device drives the blades to perform variable pitch and flipped closing through the ladder belt group.

[0027] As one of the preferred solutions, the end joint includes:

[0028] A connecting portion, the connecting portion is riveted to the end of the blade, and, a semicircular cover is arranged in an upper and lower staggered manner on the symmetry center line of the connecting portion to form a plug tube;

[0029] A flipping portion, the two sides of the T-shaped head of the flipping portion are provided with coiled ears, and a coiled ear notch group is arranged at a position corresponding to the ladder belt group, and, a semicircular cover is arranged in an upper and lower staggered manner on the symmetry center line of the flipping portion to form a plug tube, and a through hole for the lifting rope to pass through is arranged at the T-shaped tail of the flipping portion.

[0030] A connecting pin, one end of the connecting pin is inserted into and fixed to the plug tube of the connecting portion, and the other end is inserted into and fixed to the plug tube of the flipping portion;

[0031] A U-shaped pin, the two feet of the U-shaped pin are respectively inserted into the coiled ears on both sides of the flipping portion;

[0032] Among them, the side guide rail is divided into a front member and a rear member. The front member and the rear member are assembled to form a T-shaped cavity, a guide groove, and a light-shielding opening groove. The tail of the T-shaped cavity can accommodate the tail of the flipping part of the end joint, and the head of the T-shaped cavity can accommodate the head of the flipping part of the end joint. The exposed part of the connecting pin between the connecting part and the flipping part is constrained in the guide groove, so as to constrain the end joint to slide and rotate within the side guide rail. The gap defect between the end of the blade and the side guide rail is covered and compensated by the light-shielding opening groove of the side guide rail.

[0033] As one of the preferred solutions, the number of the ear-notch groups is two. The two ear-notch groups are respectively a first ear-notch group and a second ear-notch group. The ladder belt group includes:

[0034] A main ladder belt, the upper end of which is connected to the reel mechanism in the lifting and flipping device. The lower end of the front cable of the main ladder belt passes around the bottom of the bottom rail and is docked with the lower end of the rear cable of the main ladder belt. Moreover, the equally spaced single ears of the front cable and the rear cable of the main ladder belt are connected to the exposed part of the U-shaped pin at the first ear-notch group of the main blade.

[0035] A secondary ladder belt, the upper end of which is connected to the reel mechanism in the lifting and flipping device. The lower end of the front cable of the secondary ladder belt passes around the bottom of the bottom rail and is docked with the lower end of the rear cable of the secondary ladder belt. Moreover, the equally spaced single ears of the front cable and the rear cable of the secondary ladder belt are respectively connected to the exposed part of the U-shaped pin at the second ear-notch group of the secondary blade.

[0036] Among them, the multiple blades are divided into main blades and secondary blades, and the main blades and the secondary blades are arranged at intervals one by one from top to bottom. The equally spaced single ears on the main ladder belt and the equally spaced single ears on the secondary ladder belt are arranged staggeredly. Moreover, the equally spaced single ears on the main ladder belt are correspondingly connected to the main blades, and the equally spaced single ears on the secondary ladder belt are correspondingly connected to the secondary blades.

[0037] In a third aspect, the technical solution of the present invention provides a glass curtain wall with built-in louvers, which is characterized in that the glass curtain wall includes a facade curtain wall, and the facade curtain wall includes:

[0038] At least two curtain wall columns;

[0039] At least two curtain wall cross beams, which are horizontally arranged between the curtain wall columns, and a curtain wall frame is formed between the curtain wall cross beams and the curtain wall columns;

[0040] A push window, which is installed on the curtain wall frame;

[0041] A insulating glass, the insulating glass is arranged on the curtain wall frame, and the insulating glass is located outside the curtain wall frame;

[0042] A detachable glass, the detachable glass is arranged on the curtain wall frame, and the detachable glass is located inside the curtain wall frame;

[0043] The louver as described in any of the above technical solutions, the louver is installed in the curtain wall frame, and the louver is located between the insulating glass and the detachable glass;

[0044] Curtain wall accessories, the curtain wall accessories include a core sleeve, a receiving edge strip, a second sealing rubber strip, a pressing plate, a heat insulation strip, a cover plate, a first sealing strip, a third sealing rubber strip, a fourth sealing rubber strip and a detachable glass pressing strip. Among them, the receiving edge strip, the second sealing rubber strip, the heat insulation strip, the insulating glass and the first sealing strip are arranged between the column and the pressing plate. The second sealing rubber strip and the first sealing strip are respectively arranged in the sealing cavities on both sides of the column and the pressing plate. The column and the pressing plate are connected by fasteners. The cover plate is stuck on the pressing plate. The fourth sealing rubber strip and the third sealing rubber strip are arranged between the side guide rail and the detachable glass and between the detachable glass and the glass pressing strip.

[0045] In summary, by applying the technical solution of the small-deflection blade and louver of the present invention, at least the following beneficial effects are achieved: The reflector of the blade of the present invention can reflect the incident light from the outside back to the outside according to the requirements of the user, so as to avoid the harm of excessive sunlight and heat radiation indoors. The light guide plate can direct the incident light from the outside to deflect directionally indoors, so that the indoor can obtain a uniform sunlight illumination effect. The groove longitudinally extending along the middle of the light guide plate can solve the problem of excessive deflection of the blade caused by its own weight in the prior art, and greatly reduce the deflection of the blade, avoiding deformation or damage of the blade due to insufficient strength of small deflection, so as to achieve the purpose of small deflection and large span.

[0046] In addition, when the louver of the present invention closes the blade, the groove will not affect the closing of the blade, and can ensure that the blades are evenly stacked, the stacking height of the blades is small, and the width of the groove will not affect the light guide plate to direct and deflect the incident light, so as to prevent the groove from weakening the illumination effect of the light guide plate to make the indoor obtain uniform sunlight.

[0047] To make the concept of the present invention and other invention purposes, advantages, features and functions more clearly understood, preferred embodiments will be specifically cited in the following detailed description, and detailed explanations will be made in conjunction with the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0049] Figure 1 The prior art provides a schematic cross-sectional structure diagram of blades 1-2 of a louver unit;

[0050] Figure 2 Schematic cross-sectional structure diagram of blade 3 of the louver unit;

[0051] Figure 3 Schematic cross-sectional structure diagram of blade 4k of the louver unit;

[0052] Figure 4 Schematic cross-sectional structure diagram of blade 4q of the louver unit;

[0053] Figure 5 Schematic cross-sectional structure diagram of various blades 4e of the louver unit;

[0054] Figure 6 Schematic cross-sectional structure diagram of blades 4k', 4q', 4e' of the louver unit;

[0055] Figure 7 Schematic cross-sectional structure diagram of the superposed state of variable-spacing louver blades;

[0056] Figure 8 Cross-sectional structure diagram of the blades of the variable-spacing louver when the spacing ratio D / L = 1;

[0057] Figure 9 Cross-sectional structure diagram of the blades of the variable-spacing louver when the spacing ratio D / L = 0.5;

[0058] Figure 10 Schematic cross-sectional structure diagram of the closed state of the variable-spacing louver blades;

[0059] Figure 11 Schematic structure diagram of louver II;

[0060] Figure 12 Reflective and light-guiding diagram of blade 3 of the louver unit;

[0061] Figure 13 Reflective and light-guiding diagram of blade 4q of the louver unit;

[0062] Figure 14 Schematic diagram of the A-A section of louver II;

[0063] Figure 15Figure 14 Enlarged view of local structure B of the blade, end joint and side guide rail;

[0064] Figure 16 Three-dimensional structure diagram of the end joint of blade 3;

[0065] Figure 17 Three-dimensional exploded view of the end joint of blade 3;

[0066] Figure 18 Three-dimensional structure diagram of the end joint of blade 4b;

[0067] Figure 19 Three-dimensional exploded view of the end joint of blade 4b;

[0068] Figure 20 Three-dimensional structure diagram of the back of the blade where blade 3 is connected to the end joint;

[0069] Figure 21 Three-dimensional structure diagram of the back of the blade where blade 4b is connected to the end joint;

[0070] Figure 22 Figure 11 Local enlarged schematic diagram at C;

[0071] Figure 23 Figure 11 Local enlarged schematic diagram at D;

[0072] Figure 24 Schematic diagram of the structure of a glass curtain wall with built-in louvers and its push window;

[0073] Figure 25 Schematic diagram of the E-E cross-sectional structure of a glass curtain wall with built-in louvers and its push window;

[0074] Figure 26 Figure 25 Local enlarged schematic diagram at F.

[0075] Explanation of reference numerals: θ 1 : Angle between the two hypotenuses of the groove; θ 2 : Angle between the folding plate and the right side of the groove; θ 3: The angle between the folded edge at the tail of the light guide plate and the vertical direction; 1 - 2: Existing blades; 3, 3', 4k, 4k', 4q, 4q', 4e, 4e': Blades of the embodiment; 10: Reflector; 20, 21, 2k, 2k' 2q, 2q', 2e, 2e': Light guide plates; 21': The front part of the light guide plate or the transition plate; 30: Groove or arc slope; 31: Main blades of the upper part of the louver system, 32: Secondary blades of the upper half of the louver system; 4q1: Main blades of the lower part of the louver system; 4q2: Secondary blades of the lower part of the louver system: 33, 4q3: Blade groove notches; 5k', 5n', 5e': Folding plates; 60: Bent edge; I, II: Louvers; 50, 50': End connectors; 51: Flipping part; 511: Head; 512: Tail; 513, 514, 522, 523: Semi-circular covers; 515: Curling ear; 517: First set of curling ear notches; 518: Second set of curling ear notches; 52: Connecting part; 53: Connecting pin; 54: U-shaped pin; 55: Through hole; 56: First set of curling ear notches; 57: Rear foot part; 58: Second set of curling ear notches; 59: Front foot part; 61: Top frame; 62: Bottom rail; 63: Side guide rail; 63a: Front member; 63b: Rear member;; 63a1: First opening groove; 63b1: Second opening groove; 63a2: First cavity; 63b2: Second cavity; 63a3: First clamping groove; 63b3: Second clamping groove; 63a4, 63b4: Fastening screws; 63a5: First fastening edge; 63b5: First fastening edge; 63a6, 63b6: Light-shielding plates; 631: T-shaped cavity; 632: Guide groove; 633: Light-shielding opening groove; 80: Main ladder belt; 81: Secondary ladder belt; 801, 811: Equally spaced single ears; 7: Lifting rope; 9: Glass curtain wall; 91, 92, 93: Facade curtain wall; 94: Push window; 911, 912: Curtain wall cross beams; 913, 914: Curtain wall columns; 915: Curtain wall accessories; 9151: Core sleeve; 9152: Receiving edge; 9153: Second sealing rubber strip; 9154: Pressing plate; 9155: Heat insulation strip; 9156: Cover plate; 9157: First sealing strip; 9158: Third sealing rubber strip; 9159: Fourth sealing rubber strip; 91510: Removable glass pressing strip; 91511: Fastening screw; 916: Insulating glass; 917: Removable glass. Detailed implementation manners

[0076] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0077] In the present invention, for a clearer description, the following explanations are made: The orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the text is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0078] It should also be noted that unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] In addition, the terms "first" and "second" are only used for the purpose of clarity or simplified description, and cannot be understood as indicating or implying relative importance or quantity.

[0080] Embodiment 1

[0081] Please refer to Figures 1 - 2 , this Embodiment 1 provides a small-deflection blade 3 evolved from the blade 1 of the shutter I shown in Figure 1 , which is applied to the shutter II and includes a front reflector 21', a groove 30, and a light guide plate. Among them, the reflector 10 is arc-shaped and is used to reflect the incident light irradiated on the reflector 10 back outdoors. The light guide plate is arc-shaped and is interrupted by the groove 30 to form two parts: a front light guide plate 21' and a rear light guide plate 21, as shown in Figure 2 . It is used to deflect and introduce the incident light irradiated on the light guide plate onto the indoor ceiling. The groove 30 is arranged in the middle of the cross-section of the blade 3, and the groove 30 extends longitudinally along the front light guide plate 21' and the rear light guide plate 21 to reduce the deflection of the blade 3. The longitudinal direction refers to the length direction of the front light guide plate 21' and the rear light guide plate 21. Among them, the cross-section of the groove 30 is U-shaped, and the slope θ1 of both sides of the U-shaped groove 30 is 5-15°. Preferably, the slope θ1 of both sides of the U-shaped groove 30 is specifically about 8°±0.5°. Selecting the U-shaped groove 30 with about 8° can, on the one hand, ensure that the blades 3 can be stacked compactly and evenly when folded to reduce the stacking height. On the other hand, the U-shaped groove 30 with about 8° will not have too much impact on the light guiding rate and transparency of the blade 3.

[0082] In Embodiment 1, the reflector 10 of the blade 3 can reflect the incident outdoor light outdoors according to the requirements of the user, so as to avoid the harm of excessive sunlight and heat radiation indoors. The front part 21’ and the rear part 21 of the light guide plate can deflect and introduce the incident outdoor light into the indoor ceiling and then diffusely reflect it onto the desktop and the wall surface, so that the indoor can obtain a uniform sunlight illumination effect.

[0083] Further, a bending edge 60 is provided on the inner side b of the rear part 21 of the light guide plate, and the bending edge 60 is inclined downward and to the right with respect to the vertical direction, and the inclination angle is θ3, where θ3 is 9-15°, preferably about 11°. The vertical direction is the up and down direction shown in the figure, so as to enhance the stiffness of the blade 3 and make the stacking compact and uniform when the blade 3 is folded, avoiding the situation that the blade 3 cannot be stacked and stored, resulting in too high stacking height.

[0084] Embodiment 2

[0085] Please refer to Figure 3 This Embodiment 2 provides a T-shaped blade 4k evolved from the blade 3 of the louver II shown in Figure 2 , which is applied to the louver II. The dotted line 21 in the figure is the rear part 21 of the light guide plate of the blade 3, and it includes a reflector 10, a transition plate 21’, a groove 30 and a light guide plate 2k. Among them, the reflector 10, the transition plate 21’ and the groove 30 respectively refer to the corresponding parts of the blade 3. The light guide plate 2k is arc-shaped and is used to deflect and introduce the incident light irradiated thereon into the indoor ceiling or the backlight surface of the upper blade. The light guide plate 2k is obtained by rotating the light guide plate 21 of the blade 3 downward around its inner side b, and one end extension thereof intersects with the 1 / 3 position from the top g to the bottom e of the right side of the groove 30 at k. The inner bending edge 60 of the light guide plate 2k refers to the corresponding part of the blade 3, so as to enhance the stiffness of the blade 4k and make the stacking compact and uniform when the blade 4k is folded, avoiding the situation that the blade 4k cannot be stacked and stored, resulting in too high stacking height.

[0086] In this Embodiment 2, the reflector 10 of the blade 4k can reflect the incident light back outdoors according to the requirements of the user, so as to avoid the harm of excessive sunlight and heat radiation indoors. The light guide plate 2k can deflect and introduce the incident light onto the indoor ceiling, so that the indoor can obtain a uniform sunlight illumination effect.

[0087] Embodiment 3

[0088] Please refer to Figure 4 This Embodiment 3 provides a kind of Figure 2The T-shaped blade 4q evolved from the blade 3 of the Venetian blinds II shown in the figure is applied to the Venetian blinds II. The dotted line 21 in the figure is the rear part 21 of the light guide plate of the blade 3, including a reflector 10, a transition plate 21', a groove 30 and a light guide plate 2q, wherein the reflector 10, the transition plate 21' and the groove 30 respectively refer to the corresponding parts of the blade 3, the light guide plate 2q is arc-shaped, and is used to deflect the incident light shining thereon and direct it to the indoor ceiling or the backlight surface of the previous blade, the light guide plate 2q is obtained by the light guide plate 21 of the blade 3 rotating downward around its inner side b and one end of the extension section intersecting with q at 2 / 3 of the distance from the top g on the right side of the groove 30 to the bottom e of the groove, the inner side bent edge 60 of the light guide plate 2q refers to the corresponding part of the blade 3, so as to strengthen the rigidity of the blade 4q and make the blades 4q compact and evenly stacked when they are folded, thereby avoiding the blades 4q from being unable to be stacked and stored, resulting in the stacking height being too high.

[0089] In this embodiment 2, the reflector 10 of the blade 4q can reflect the incident light back to the outside according to the user's requirements to avoid damage caused by excessive sunlight and heat radiation indoors. The light guide plate 2q can deflect the incident light and direct it to the indoor ceiling to obtain a uniform sunlight lighting effect indoors.

[0090] Example 4

[0091] See also Figure 5 This embodiment 4 provides a method of Figure 2 The T-shaped blade 4e evolved from the blade 3 of the blinds II shown in the figure is applied to the blinds II. The dotted line 21 in the figure is the rear part 21 of the light guide plate of the blade 3, including a reflector 10, a transition plate 21', a groove 30 and a light guide plate 2q, wherein the reflector 10, the transition plate 21' and the groove 30 respectively refer to the corresponding parts of the blade 3, the light guide plate 2e is arc-shaped, and is used to deflect the incident light shining thereon and direct it to the indoor ceiling or the backlight surface of the previous blade. The light guide plate 2e is obtained by rotating the light guide plate 21 of the blade 3 downward around its inner side b and having an extended section at one end tangent to the bottom e of the right side of the groove 30. The inner bent edge 60 of the light guide plate 2e refers to the corresponding part of the blade 3, so as to strengthen the rigidity of the blade 4e and stack the blades 4e compactly and evenly when they are folded, thereby avoiding the blades 4e from being unable to be stacked and stored, resulting in the stacking height being too high.

[0092] In this embodiment 4, the reflector 10 of the blade 4e can reflect the incident light back to the outside according to the user's requirements to avoid damage caused by excessive sunlight and heat radiation indoors. The light guide plate 2e can deflect the incident light and direct it to the indoor ceiling to obtain a uniform sunlight lighting effect indoors.

[0093] Example 5

[0094] See also Figure 6, Embodiment 5 provides a T-shaped blade 4k’, 4q’, 4e’ which is applied to the louver II. The blades 4k’, 4q’, 4e’ include a reflector 10, a transition plate 21’, a groove 30, folding plates 5k’, 5q’, 5e’ and light guide plates 2k’, 2q’, 2e’. Among them, the reflector 10, the transition plate 21’ and the groove 30 respectively refer to the corresponding parts of the blade 3. The folding plate extending downward from the right top g of the groove 30 and having an included angle θ with the right side of the groove 30 2 intersects with the blade light guide plate 2k of Embodiment 3 at k’ to obtain the folding plate 5k’ and the light guide plate 2k’. It intersects with the blade light guide plate 2q of Embodiment 4 at q’ to obtain the folding plate 5q’ and the light guide plate 2q’. It intersects with the blade light guide plate 2e of Embodiment 5 at e’ to obtain the folding plate 5q’ and the light guide plate 2e’. The inner bends 60 of the light guide plates 2k’, 2q’, 2e’ refer to the corresponding parts of the blade 3.

[0095] In Embodiment 5, the reflector 10 of the blades 4k’, 4q’, 4e’ can reflect the incident outdoor light back outdoors according to the requirements of the user, so as to avoid the harm of excessive sunlight and heat radiation indoors. The light guide plates 2k’, 2q’, 2e’ can deflect and introduce the incident outdoor light onto the indoor ceiling, so as to obtain a uniform sunlight illumination effect indoors.

[0096] The deflections of the T-shaped blades 3, 4k, 4q, 4e, 4k’, 4q’, 4e’ made of aluminum alloy 3003 with a cross-sectional width of 50 mm and a blade thickness of 0.18 mm under their own weights in Embodiments 1 to 5 are summarized and compared with the deflections of the blades 1 to 2 in the prior art under their own weights as shown in Table 1 below.

[0097] Table 1 Summary and comparison of the deflections of the T-shaped blades and the blades 1 and 2 under their own weights

[0098]

[0099] Table 2 summarizes and compares the deflections of the T-shaped blades 3, 4k, 4q, 4e, 4k’, 4q’, 4e’ made of aluminum alloy 3003 with a cross-sectional width of 100 mm and a blade thickness of 0.3 mm under their own weights in Embodiments 1 to 5 with the deflections of the blades 1 to 2 in the prior art under their own weights.

[0100] Table 2 Summary and comparison of the deflections of the T-shaped blades and the blades 1 and 2 under their own weights

[0101]

[0102] Please refer to Figure 1 , Figure 1 which shows the cross-sectional geometric structure and size definition of the blades 1 to 2 in the prior art.

[0103] In the technical field of louver I, the following concepts are usually involved, which are: blade spacing D, blade width L, spacing ratio D / L, blade height h, and transparency Γ.

[0104] The transparency Γ is the ratio of the height of the horizontally visible part between two adjacent blades 1 passing through the louver I to the spacing between two adjacent blades 1.

[0105] As Figure 1 shown, define the horizontal distance between the outer end a and the inner end b of a blade 1 of a louver I as the blade width L; the vertical distance between the same points a, a' of two adjacent blades 1 in the louver I system is D, and the distance from the bottom a of the blade 1 to the highest point c of the blade 1 is the blade height h, then the transparency Γ = 1 - h / D.

[0106] Please refer to Figure 1 , for the existing blade 1, the deflection problem under its own weight is usually not considered. When the spacing ratio D / L = 1.0 for the existing blade 1, h / D = 0.23. From the transparency formula Γ = 1 - h / D, we get Γ = 77%. Please refer to Table 1. Although the transparency of the existing blade 1 is extremely high, when the blade thickness is 0.18 mm and the blade length (span) is 1.8 m, the deflection of the blade 1 is as high as 10.96 mm; when the blade thickness is 0.30 mm and the blade length (span) is 3.6 m, the deflection of the blade 1 is as high as 42.2 mm.

[0107] For the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e' in Embodiments 1 to 5 of the present invention, when the spacing ratio D / L = 1.0, the ratio of the distance h from the bottom e of the groove 30 of the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e' to the highest point c of the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e' to the blade spacing D of the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e' is about 0.26, that is, h / D = 0.26, D / L = 1.0. From the transparency formula Γ = 1 - h / D, we get Γ = 74%. It can be seen that the transparency of the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e' of the present invention is slightly less than that of the existing blades 1 - 2. For the deflection, when the blade thickness is 0.18 mm and the blade length is 1.8 m, the deflection of the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e' is reduced to 3.4 - 3.92 mm. When the blade thickness is 0.30 mm and the blade length is 3.6 m, the deflection of the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e' is reduced to 14 - 18.9 mm. Compared with the prior art, the deflection of the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e' has decreased significantly.

[0108] In the embodiments of the present invention, on the premise of ensuring that the transparency of the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e' is not low, a groove 30 is formed by longitudinally extending along the light guide plate 20 to reduce the transparency of the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e' and increase the stiffness of the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e', so as to achieve the purpose of small deflection, large span and small overlapping height of the T-shaped blades 3, 4k, 4q, 4e, 4k', 4q', 4e'.

[0109] Figures 7 - 10 Shows four conditions of the overlapping, pitch ratio D / L = 1.0, pitch ratio D / L = 0.5, and closing of the blades 3 and 4q applied to the two-part variable pitch louver II. The two-part variable pitch louver is divided into two parts above and below 1.7 m from the ground. The upper part of the two-part variable pitch louver uses the blade 3, and the lower part uses the blade 4q. The blades of the two-part variable pitch louver are further divided into main blades 31, 4q1 and secondary blades 32, 4q2, which are controlled by different groups of ladder tapes respectively. The main blade 31 and the secondary blade 32 are the same kind of blade, and the main blade 4q1 and the secondary blade 4q2 are the same kind of blade. It can be known from the figure that the overlapping distance between the two blades is about 2 mm. The number of blades of the two-part variable pitch louver of a 2.5 m high floor-to-ceiling window is 100, and its overlapping height is 200 mm. The transparency Γ is 70.5% at the pitch ratio D / L = 1.0, and the transparency Γ is 49% at the pitch ratio D / L = 0.5. Due to the high degree of blade overlap, the light-shielding effect and privacy shielding effect of the two-part variable pitch louver when closed are very good.

[0110] Figure 12 and Figure 13 Respectively show the light illumination effect diagrams of the T-shaped blades 3 and 4q adjusting the light reflection amount and light guiding amount by changing the blade pitch and blade angle at various solar altitude angles H. In the figure, (a) and (c) are to reflect all the light to the outside by changing the blade angle when the blade has the minimum pitch (D / L = 0.5). The rest of the figures only adjust the light reflection amount and light guiding amount by changing the blade pitch. It can be seen from the figure that the T-shaped blades can well respond to the change of the sun, adjust the light reflection amount and light incident amount of the sunlight according to the actual needs of people and eliminate glare.

[0111] Example 6

[0112] Please refer to Figure 11 、 Figures 14 - 23, the embodiment of the present invention also provides a two-part variable-spacing louver II with side guide rails at both ends, including a top rail 61, a bottom rail 62, two side guide rails 63, 64, a lifting and flipping device (not shown), a plurality of blades 3, 4q as described in any of the above technical solutions, and a plurality of end joints 50, 50' fixedly connected to both ends thereof, a lifting rope 7, and ladder belt groups 80, 81; the lifting and flipping device is arranged in the top rail 61, the blades 3, 4q are arranged between the top rail 61 and the bottom rail 62, and the blade 3 is installed more than 1.7 m above the ground, and the blade 4q is installed below 1.7 m from the ground. A section of groove 33, 4q3 is cut off from each end of the blades 3, 4q (see Figure 20 , Figure 21 ), so that the blades 3, 4q do not interfere with each other when stacked. The end joints 50, 50' are respectively arranged at both ends of the blades 3, 4q, and the end joints 50, 50' can be accommodated in the side guide rails (see Figure 15 ). The lifting rope 7 passes through the through hole 515 at the T-shaped tail of the end joints 50, 50'. The lower end of the lifting rope 7 is connected to the bottom rail 62, and the upper end of the lifting rope 7 is connected to the lifting wheel in the lifting and flipping device. The ladder belt groups 80, 81 are respectively connected to the end joints 50, 50'. The upper ends of the ladder belt groups 80, 81 are connected to the reel mechanism in the lifting and flipping device, and the lower end of one of the ladder belt groups 80, 81 bypasses the bottom rail 62 and is connected to its other lower end.

[0113] Among them, please refer to Figures 7 - 10 together. The louver II includes a retracted state, an unfolded state, a variable-spacing state, and a flipped state. In the retracted state, the lifting wheel in the lifting and flipping device lifts the bottom rail 62 through the lifting rope 7 and stacks and closes the blades 3, 4q from bottom to top in sequence; in the unfolded state, the lifting wheel in the lifting and flipping device lowers through the lifting rope 7, and the bottom rail 62 and the blades 3, 4q unfold from top to bottom by their own weights in sequence; in the variable-spacing and flipped states, the reel mechanism in the lifting and flipping device drives the blades 3, 4c to perform variable-spacing and flipped closing through the ladder belt groups 80, 81.

[0114] For the lifting and flipping device, the lifting and flipping devices in patents CN102808573B, CN102839906B, CN102808577B, and CN102900347B can be used. Of course, other existing lifting and flipping devices can also be used for cooperation as long as the main functions of the lifting and flipping device can be achieved. It can be understood that since the inventive points of the embodiment of the present invention do not lie in the lifting and flipping device, the shape, structure, and configuration of the lifting and flipping device will not be specifically limited or described in detail here, and the focus will be on the inventive points of the embodiment of the present invention.

[0115] Figure 16 shows the three-dimensional structure diagram of the end joint 50. Figure 17Shows a three-dimensional exploded view of the end joint 50, which includes a flipping part 51, a connecting pin 53, a U-shaped pin 54, and a connecting part 52. The flipping part 51 has a T-shaped outer contour. On both sides of the T-shaped head of the flipping part 51, there are provided ear-shaped parts 515, and an ear-shaped notch group is provided at the positions corresponding to the ladder belt groups 80 and 81. A through hole 516 for the lifting rope 7 to pass through is provided at the T-shaped tail of the flipping part 51. The symmetric median line of the flipping part 51 is provided with upper and lower staggered semi-circular covers 513 and 514 to form a pin tube. The connecting part 52 has the same cross-sectional shape as the blade 3 excluding the groove 30, and the symmetric median line thereof is provided with upper and lower staggered semi-circular covers 522 and 523 to form a pin tube. A plurality of riveting through holes 524 are also provided on the connecting part 52 and are fixed to the end of the blade 3 by rivets or other connection means. The two legs 542 of the U-shaped pin 54 are respectively inserted into the ear-shaped parts 515 on both sides of the T-shaped head of the flipping part 51. One end of the connecting pin 53 is inserted into and fixed to the pin tube of the connecting part 52, and the other end is inserted into and fixed to the pin tube of the flipping part 51. Similarly, Figure 18 Shows a three-dimensional structural diagram of the end joint 50'. Figure 19 Shows a three-dimensional exploded view of the end joint 50'. The structure of the end joint 50' is the same as that of the end joint 50, except that the cross-sectional shape of the connecting part 52' of the end joint 50' is the same as the cross-sectional shape of the blade 4q excluding the groove 4q3 and is fixedly connected thereto.

[0116] Figure 15It is a partially enlarged view of the structure of the blade, end joint and side guide rail, which shows the mating relationship among the three. The lifting and flipping device varies the pitch and rotates the blade 4q around the connecting pin 53 of the end joint 50 through the ladder belt group. Among them, the side guide rail is divided into a front member 63a and a rear member 63b. The front member 63a and the rear member 63b are symmetrical parts, each provided with a first open slot 63a1, a second open slot 63b1, a first cavity 63a2, a second cavity 63b2, and light-shielding plates 63a6 and 63b6. The first cavity 63a2 and the second cavity 63b2 play a role in strengthening the strength and stiffness of the two members. At the rear ends of the front member 63a and the rear member 63b, there are respectively a first card slot 63a3, a second card slot 63b3, a first fastening edge 63a5, and a second fastening edge 63b5. First, the front member 63a is fixed to the side wall by screws 63b4, and then the front member 63a and the rear member 63b are assembled by fitting their respective card slots 63a3 and 63b3 to form a T-shaped cavity 631, a guide slot 632, and a light-shielding opening slot 633. At the same time, the second fastening edge 63b5 of the rear member 63b is firmly connected to the first fastening edge 63a5 of the front member 63a by screws 63a4. This connection method of card slot fitting and screw fastening ensures that the formed side guide rail 63 is stable and not easily deformed. The tail of the T-shaped cavity 631 can accommodate the tail 512 of the flipping part 51 of the end joint 50, and the head of the T-shaped cavity 631 can accommodate the head 511 of the flipping part 51 of the end joint 50. The exposed part of the connecting pin 53 between the connecting part 52 and the flipping part 51 is constrained in the guide slot 632, thereby restricting the end joint 50 to slide and rotate within the side guide rail 63. The gap defect between the end of the blade 4q and the side guide rail 63 is covered and compensated by the light-shielding opening slot 633 of the side guide rail 63.

[0117] Refer to Figures 8 - 10 , Figures 22 - 23, the blades of the two-part variable-spacing louver II are divided into main blades 31, 4q1 and secondary blades 32, 4q2. Moreover, the main blades 31, 4q1 and the secondary blades 32, 4q2 are arranged at intervals one by one from top to bottom. The equally spaced single ears 801 on the main ladder belt 80 and the equally spaced single ears 811 on the secondary ladder belt 81 are arranged staggeredly. And the equally spaced single ears 801 on the main ladder belt 80 are correspondingly connected to the main blades 31, 4q1, and the equally spaced single ears 811 on the secondary ladder belt 81 are correspondingly connected to the secondary blades 32, 4q2. The number of the ear-notch groups of the end joints 50, 50' is two, and the two ear-notch groups are the first ear-notch group 517 and the second ear-notch group 518 respectively. The ladder belt group includes the main ladder belt 80 and the secondary ladder belt 81. Among them, the upper end of the main ladder belt 80 is connected to the reel mechanism in the lifting and flipping device. The lower end of the front cable of the main ladder belt 80 passes around the bottom of the bottom rail 62 and is butted against the lower end of the rear cable of the main ladder belt 80. And the equally spaced single ears 801 of the front cable and the rear cable of the main ladder belt 80 are connected to the exposed part 519 of the U-shaped pin 54 at the first ear-notch group 517 of the main blades 31, 4q1. The upper end of the secondary ladder belt 81 is connected to the reel mechanism in the lifting and flipping device. The lower end of the front cable of the secondary ladder belt 81 passes around the bottom of the bottom rail 62 and is butted against the lower end of the rear cable of the secondary ladder belt 81. And the equally spaced single ears 811 of the front cable and the rear cable of the secondary ladder belt 81 are respectively connected to the exposed part 5110 of the U-shaped pin 54 at the second ear-notch group 518 of the secondary blades 32, 4q2.

[0118] Embodiment 7

[0119] Please refer to Figures 24 - 26, the embodiment of the present invention further provides a glass curtain wall 9 with an internally installed two-part variable-spacing louver II, which is specifically composed of the two-part variable-spacing louver II composed of the blades described in Embodiments 1-4 of the present invention integrated with the glass curtain wall 9, including facade curtain walls 91, 92, 93 and push windows 94. The facade curtain wall 91 includes two curtain wall cross beams 911, 912, two curtain wall columns 913, 914, curtain wall accessories 915, insulating glass 916, detachable glass 917 and the louver II described in any of the above technical solutions. The curtain wall accessories 915 include a core sleeve 9151, a receiving edge 9152, a second sealing rubber strip 9153, a pressing plate 9154, a heat insulation strip 9155, a cover plate 9156, a first sealing strip 9157, a third sealing rubber strip 9158, a fourth sealing rubber strip 9159, and a detachable glass pressing strip 91510. Among them, the curtain wall cross beams 91, 92 are horizontally arranged between the curtain wall columns 93, 94, and the curtain wall cross beams 91, 92 and the curtain wall columns 93, 94 form a curtain wall frame; the insulating glass is located outside the curtain wall frame, the detachable glass is located inside the curtain wall frame, and the receiving edge strip 9152, the second sealing rubber strip 9153, the heat insulation strip 9155, the insulating glass 916 and the first sealing strip 9157 are arranged between the column 913 and the pressing plate 9154. The second sealing rubber strip 9153 and the first sealing strip 9157 are respectively arranged in the sealing cavities on both sides of the column 913 and the pressing plate 9154. The column 913 and the pressing plate 9154 are connected by screws 91511, and the cover plate 9156 is stuck on the pressing plate 9154. The insulating glass 916 is located outside the curtain wall frame; the side guide rails 63 of the two-part variable-spacing louver II are fixed on the side walls of the column 913 with screws 63a4 and 63b4. The front and rear members 63a, 63b of the side guide rail 63 are slightly changed. The fastening edge 63a5 of the front member 63a is shortened, and the fastening edge 63b5 of the rear member 63b is deformed from a straight edge to a hook 91512 so that the detachable glass pressing strip 91510 can be fitted with it and the detachable glass 917 can be constrained on the side guide rail 63 and the top rail 61. And a fourth sealing rubber strip 9159 and a third sealing rubber strip 9158 are arranged between the side guide rail 63 and the detachable glass 917 and between the detachable glass and the glass pressing strip 91510; the two-part variable-spacing louver curtain II' is arranged in the curtain wall frame along with the side guide rail 63, and the two-part variable-spacing louver curtain II' is located between the insulating glass 916 and the detachable glass 917.

[0120] In addition to the functions of the louver II and the curtain wall itself, this glass curtain wall 9 with an internally installed two-part variable-spacing louver II also brings three new functions, namely, better heat insulation and energy saving function, better sound insulation function, and preventing dust from falling on the blades of the louver II.

[0121] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A kind of shutter, characterized in that, it includes: A frame, the frame includes a top rail, a bottom rail and side guide rails; A lifting and flipping device, which is arranged in the top rail; A plurality of blades, the blades include a reflector for reflecting incident light irradiated on the reflector; A light guide plate, the light guide plate is connected to the reflector and is used for guiding the incident light irradiated on the light guide plate; A groove, the groove is arranged on the light guide plate and extends along the longitudinal direction of the light guide plate; A plurality of the blades are arranged between the top rail and the bottom rail, and a section of the groove is cut off at each end of the plurality of blades so that the plurality of blades do not interfere with each other when stacked; A plurality of end joints, the plurality of end joints are respectively arranged at the ends of the plurality of blades, and the plurality of end joints can be accommodated in the side guide rails; A lifting rope, the lifting rope passes through the end joint, and the lower end of the lifting rope is connected to the bottom rail, and the upper end of the lifting rope is connected to the lifting wheel in the lifting and flipping device; A ladder belt group, the ladder belt group is respectively connected to the plurality of end joints, and the upper end of the ladder belt group is connected to the reel mechanism in the lifting and flipping device, and the lower end of the ladder belt group is connected to the bottom rail; Wherein, the shutter includes a retracted state, an unfolded state, a variable-spacing state and a flipped state. In the retracted state, the lifting wheel in the lifting and flipping device lifts the bottom rail through the lifting rope and stacks and closes the plurality of blades in sequence from bottom to top; in the unfolded state, the lifting wheel in the lifting and flipping device is lowered through the lifting rope, and the bottom rail and the plurality of blades are unfolded in sequence from top to bottom by their own weights; in the variable-spacing and flipped states, the reel mechanism in the lifting and flipping device drives the blades to perform variable-spacing and flipped closing through the ladder belt group; The end joint includes: A connecting part, the connecting part is riveted to the end of the blade, and a semicircular cover that is staggered up and down is arranged on the symmetry center line of the connecting part to form a socket tube; A flipping part, the two sides of the T-shaped head of the flipping part are set as coiled ears, and a coiled ear notch group is arranged at the position corresponding to the ladder belt group, and the symmetry center line of the flipping part is set as a semicircular cover that is staggered up and down to form a socket tube, and a through hole for the lifting rope to pass through is arranged at the T-shaped tail of the flipping part; A connecting pin, one end of the connecting pin is inserted into the socket tube of the connecting part and fixed thereto, and the other end is inserted into the socket tube of the flipping part and fixed thereto; A U-shaped pin, the two feet of the U-shaped pin are respectively inserted into the coiled ears on both sides of the flipping part; Among them, the side guide rail is divided into a front member and a rear member. The front member and the rear member are assembled to form a T-shaped cavity, a guide groove, and a light-shielding opening groove. The tail of the T-shaped cavity can accommodate the tail of the flipping part of the end joint, and the head of the T-shaped cavity can accommodate the head of the flipping part of the end joint. The exposed part of the connecting pin between the connecting part and the flipping part is constrained in the guide groove, so as to constrain the end joint to slide and rotate within the side guide rail. The gap defect between the end of the blade and the side guide rail is covered and compensated by the light-shielding opening groove of the side guide rail; The cross-section of the groove is U-shaped; The light guide plate is an arc-shaped light guide plate.

2. The louver according to claim 1, characterized in that, the number of the ear notch groups is two. The two ear notch groups are respectively a first ear notch group and a second ear notch group. The ladder belt group includes: a main ladder belt, the upper end of the main ladder belt is connected to the reel mechanism in the lifting and flipping device. The lower end of the front cable of the main ladder belt passes around the bottom of the bottom rail and is docked with the lower end of the rear cable of the main ladder belt. Moreover, the exposed part of the U-shaped pin at the first ear notch group of the main blade is connected to the equally spaced single ears of the front and rear cables of the main ladder belt; a secondary ladder belt, the upper end of the secondary ladder belt is connected to the reel mechanism in the lifting and flipping device. The lower end of the front cable of the secondary ladder belt passes around the bottom of the bottom rail and is docked with the lower end of the rear cable of the secondary ladder belt. Moreover, the exposed parts of the U-shaped pins at the second ear notch group of the secondary blade are respectively connected to the equally spaced single ears of the front and rear cables of the secondary ladder belt; wherein, a plurality of the blades are divided into main blades and secondary blades, and the main blades and the secondary blades are arranged at intervals one by one from top to bottom. The equally spaced single ears on the main ladder belt and the equally spaced single ears on the secondary ladder belt are arranged staggeredly. Moreover, the equally spaced single ears on the main ladder belt are correspondingly connected to the main blades, and the equally spaced single ears on the secondary ladder belt are correspondingly connected to the secondary blades.

3. A glass curtain wall with built-in louvers, characterized in that, the glass curtain wall includes a facade curtain wall, and the facade curtain wall includes: at least two curtain wall columns; at least two curtain wall cross beams, the curtain wall cross beams are horizontally arranged between the curtain wall columns, and a curtain wall frame is formed between the curtain wall cross beams and the curtain wall columns; a push window, the push window is arranged on the curtain wall frame; hollow glass, the hollow glass is arranged on the curtain wall frame, and the hollow glass is located outside the curtain wall frame; detachable glass, the detachable glass is arranged on the curtain wall frame, and the detachable glass is located inside the curtain wall frame; the louver according to any one of claims 1 to 2, the louver is arranged within the curtain wall frame, and the louver is located between the hollow glass and the detachable glass; curtain wall accessories, the curtain wall accessories include a core sleeve, a receiving edge, a second sealing rubber strip, a pressing plate, a heat insulation strip, a cover plate, a first sealing strip, a third sealing rubber strip, a fourth sealing rubber strip, and a detachable glass pressing strip, wherein, The receipt edge, the second sealing rubber strip, the heat insulation strip, the insulating glass and the first sealing strip are arranged between the upright column and the pressing plate. The second sealing rubber strip and the first sealing strip are respectively arranged in the sealing cavities on both sides of the upright column and the pressing plate. The upright column and the pressing plate are connected by fasteners. The cover plate is stuck on the pressing plate. The fourth sealing rubber strip and the third sealing rubber strip are arranged between the side guide rail and the detachable glass and between the detachable glass and the glass pressing strip.

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