CN112593834A - Large-span and small-deflection T-shaped blade applied to shutter and curtain wall - Google Patents

Abstract

The invention discloses a large-span and small-deflection T-shaped blade applied to a shutter and a curtain wall, which comprises a reflector, a light guide plate and a groove, wherein the reflector is used for reflecting incident light irradiated on the reflector; the light guide plate is connected with the reflector and is used for deflecting incident light irradiated on the light guide plate; the grooves are formed by extending along the longitudinal direction of the light guide plate so as to reduce the deflection of the louver blades. The groove of the louver blade can solve the problem that the deflection of the louver blade is too large due to dead weight in the prior art, greatly reduces the deflection of the louver blade, avoids overlarge deformation of the louver blade due to insufficient rigidity, and achieves the purposes of large deflection span and reduction of the number of the ladder belts of the blade. In addition, when the louver blades are folded in the louver window, the grooves of the T-shaped blades do not influence the folding of the louver blades, the uniform folding of the louver blades can be ensured, the folding height of the louver blades is small, and the width of the grooves does not influence the light guide effect of the light guide plate too much.

Description

Large-span and small-deflection T-shaped blade applied to shutter and curtain wall

Technical Field

The invention relates to the technical field of shutters, in particular to a large-span and small-deflection T-shaped blade applied to shutters and curtain walls.

Background

At present, the blades of the most common internal sun-shading shutter system in the sun-shading market are arc-shaped blades, the blades are mostly formed by thin aluminum strips, and the blades can be separated into equal intervals through a plurality of groups of ladder strips to be assembled into the shutter. Because the arc-shaped blade is very thin, the deflection caused by the dead weight of the arc-shaped blade is large, a group of ladder belts need to be arranged at a small distance to support the blade to keep the blade in a horizontal state, the ladder belts have too many ropes, so that the appearance is not good, and the ladder belts are easy to be stained with dust, are not easy to clean, so that bacteria are bred, the respiratory tract system of human is infected, and the health of human is influenced.

The mirror surface blades of the variable-spacing sunshade light guide shutter consist of a light reflecting plate and a light guide plate, the light reflecting plate reflects the sunlight irradiated on the light reflecting plate to the outdoor, and the light guide plate guides the sunlight irradiated on the light guide plate into an indoor ceiling or the back of the last blade and then diffusely reflects the sunlight to a desktop. The light guide plate of the blade is a mirror surface cylindrical surface which is bent upwards, while the light reflecting plate has a cylindrical surface form with different cross sections, and the blades also have the same defects of arc-shaped blades, namely, the self weight of the blades causes large deflection, and a group of ladders are required to be arranged at small intervals to overcome the defects. DE19929138a1 discloses several blades with stiffening ribs, but these blades are either adapted to be stationary or to rotate, not being suitable for the case of lifting and collapsing of the blades. DE19543812a1 discloses small-deflection blades which are not sufficiently rigid when they are made of ultra-thin aluminium strips and the ladder strips are arranged only at the ends of the blades, so that the deflection of the blades is large. CN105178831B discloses an optimized design method of sunshade light guide blades, and obtains the best sunshade light guide blades, but the blades do not consider reducing the number of ladder tapes or being used in a large-span, small-deflection and small-blade-overlapping-height variable-pitch louver with ladder tapes only arranged at two ends of the blades.

Disclosure of Invention

The invention aims to provide a large-span and small-deflection T-shaped blade applied to a shutter and a curtain wall, and aims to solve the technical problem of overlarge deflection of the blade caused by self weight in the prior art.

In order to achieve the above object, in a first aspect, the present invention provides a large-span and small-deflection louver applied to a louver, including:

the reflector is used for reflecting incident light irradiated on the reflector;

the light guide plate is connected with the reflector and is used for guiding incident light irradiated on the light guide plate;

the groove is arranged on the light guide plate and formed by extending along the longitudinal direction of the light guide plate.

As one preferable scheme, the cross section of the groove is U-shaped, and the inclination of two sides of the groove is 5-15 degrees.

Preferably, the light guide plate is an arc-shaped light guide plate, and the light guide plate is interrupted by the grooves to form a front portion and a rear portion of the light guide plate.

As one of preferable schemes, the blade further comprises:

the transition plate extends leftwards and upwards from the top of the left side of the groove to intersect with the right side of the reflector;

the folded plate extends downwards from the top on the right side of the groove to be intersected with the light guide plate, and an included angle between the folded plate and the right side of the groove is 40-50 degrees;

the light guide plate is an arc-shaped light guide plate, the left side of the light guide plate extends leftwards and can be intersected with the right side of the groove, or the left side of the light guide plate extends leftwards and downwards and can be tangent to the bottom of the groove.

As one of preferable schemes, the blade further comprises:

the transition plate extends leftwards and upwards from the top of the left side of the groove to intersect with the right side of the reflector;

wherein, the light guide plate extend to left for its left side with the crossing arc light guide plate in recess right side, or, the light guide plate extends downwards left for its left side to with the tangent arc light guide plate in recess bottom.

As one of the preferred schemes, the lateral margin of the light guide plate far away from the reflector is provided with a bending edge, the bending edge inclines towards the lower right relative to the vertical direction, and the included angle between the bending edge and the vertical direction is 9-15 degrees.

In a second aspect, the present invention provides a blind, including:

a frame comprising a top rail, a bottom rail, and a side rail;

the lifting turner is arranged in the top rail;

the blades are arranged between the top rail and the bottom rail, and a section of the groove is cut at each end of the blades so that the blades do not interfere with each other when being overlapped;

a plurality of end fittings respectively disposed at ends of the plurality of blades, the plurality of end fittings receivable within the side rails;

the lifting rope penetrates through the end part joint, the lower end of the lifting rope is connected with the bottom rail, and the upper end of the lifting rope is connected with a lifting wheel in the lifting turner;

the ladder belt groups are correspondingly connected with the end joints respectively, the upper ends of the ladder belt groups are connected with a winding wheel mechanism in the lifting turner, and the lower ends of the ladder belt groups are connected with the bottom rail;

the louver comprises a furled state, an unfolded state, a variable-spacing state and a turnover state, wherein in the furled state, a lifting wheel in the lifting turnover device lifts a bottom rail through a lifting rope and sequentially stacks and folds the blades from bottom to top; in the unfolding state, a lifting wheel in the lifting turner is lowered through the lifting rope, and the bottom rail and the blades are sequentially unfolded from top to bottom by virtue of the self weight; and in the variable-pitch and overturning state, a winding wheel mechanism in the lifting overturning device drives the blades through the ladder belt set to perform variable-pitch and overturning closing.

As one of preferable solutions, the end fitting includes:

the connecting part is riveted with the end part of the blade, and a semicircular cover which is staggered up and down is arranged on the symmetrical center line of the connecting part to form a latch pipe;

the T-shaped head of the turnover part is provided with two sides with a rolling lug, the T-shaped head of the turnover part is provided with a rolling lug notch group corresponding to the position of the ladder belt group, the symmetrical central line of the turnover part is provided with semicircular covers staggered up and down to form a latch pipe, and the T-shaped tail of the turnover part is provided with a through hole for the lifting rope to pass through.

One end of the connecting pin is inserted into and fixed with the plug pin pipe of the connecting part, and the other end of the connecting pin is inserted into and fixed with the plug pin pipe of the overturning part;

two legs of the U-shaped pin are respectively and correspondingly inserted into the eye curls on two sides of the turnover part;

wherein, the side guide rail divide into preceding component and back component, preceding component with back component equipment forms T shape cavity, guide way and shading open slot, T shape cavity afterbody can hold the afterbody of tip joint's upset portion, T shape cavity head can hold the head of tip joint's upset portion, connecting portion with connecting pin between the upset portion exposes the part restraint and is in the guide way, thereby will the tip joint restraint is in slide in the side guide rail and rotate, the tip of blade with space defect between the side guide rail is then passed through the shading open slot of side guide rail shelters from and compensaties.

As one preferable scheme, the number of the tab gap groups is two, the two tab gap groups are respectively a first tab gap group and a second tab gap group, and the ladder tape group includes:

the upper end of the main ladder belt is connected with a winding wheel mechanism in the lifting turner, the lower end of a front rope of the main ladder belt is wound from the bottom of the bottom rail and butted with the lower end of a rear rope of the main ladder belt, and the equidistant single lugs of the front rope and the rear rope of the main ladder belt are connected with the exposed part of the U-shaped pin at the first lug gap group of the main blade;

the upper end of the secondary ladder belt is connected with a winding wheel mechanism in the lifting turner, the lower end of a front cable of the secondary ladder belt is wound from the bottom of the bottom rail to be butted with the lower end of a rear cable of the secondary ladder belt, and the equidistant single lugs of the front cable and the rear cable of the secondary ladder belt are respectively connected with the exposed part of the U-shaped pin at the second winding lug notch group of the secondary blade;

wherein, it is a plurality of the blade divide into main blade and inferior blade, just, main blade with inferior blade is from last to lower one-to-one interval arrangement respectively, the equidistance monaural on the main ladder area with the equidistance monaural staggered arrangement on the inferior ladder area, just, the equidistance monaural on the main ladder area with main blade corresponds the connection, the equidistance monaural on the inferior ladder area with inferior blade corresponds the connection.

In a third aspect, the present invention provides a glass curtain wall with a built-in blind, wherein the glass curtain wall includes a facade curtain wall, and the facade curtain wall includes:

at least two curtain wall uprights;

the curtain wall cross beams are transversely arranged between the curtain wall stand columns, and a curtain wall framework is formed between the curtain wall cross beams and the curtain wall stand columns;

the push window is arranged on the curtain wall frame;

the hollow glass is arranged on the curtain wall frame and is positioned on the outer side of the curtain wall frame;

the detachable glass is arranged on the curtain wall framework, and is positioned on the inner side of the curtain wall framework;

the louver according to any one of the above technical solutions is disposed in the curtain wall frame, and the louver is located between the hollow glass and the detachable glass;

the curtain wall accessory comprises a core sleeve, a folding 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 stand column and the pressing plate are provided with the folding edge, the second sealing rubber strip, the heat insulation strip, hollow glass and the first sealing strip, the second sealing rubber strip and the first sealing strip are respectively arranged in sealing cavities on two sides of the stand column and the pressing plate, the stand column and the pressing plate are connected through fasteners, the cover plate is clamped on the pressing plate, the side guide rails and the detachable glass are arranged between the detachable glass, the detachable glass is arranged between the glass pressing strip, and the fourth sealing rubber strip and the third sealing rubber strip are arranged between the glass pressing strip.

In summary, the technical scheme of the invention has at least the following beneficial effects: the reflecting plate of the blade can reflect the outdoor incident light back to the outdoor according to the requirement of a user so as to avoid the damage of excessive sunlight and heat radiation in the room, the light guide plate can guide and deflect the outdoor incident light to the room so as to ensure that the room obtains the uniform sunlight illumination effect, and the groove longitudinally extending along the middle part of the light guide plate can solve the problem of overlarge deflection of the blade caused by self weight in the prior art, thereby greatly reducing the deflection of the blade, avoiding the deformation or damage of the blade caused by insufficient strength of small deflection, and achieving the purposes of small deflection and large span.

In addition, when the blades of the shutter are folded, the grooves do not influence the folding of the blades, the uniform folding of the blades can be ensured, the folding height of the blades is smaller, and the width of the grooves does not influence the light guide plate to guide and deflect incident light so as to prevent the grooves from weakening the light guide plate and enable the indoor uniform sunlight illumination effect to be obtained.

In order to make the present invention and other objects, advantages, features and functions more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 illustrates a cross-sectional structure of a louver blade 1-2 of a louver unit according to the prior art;

FIG. 2 is a schematic cross-sectional structure view of a louver unit blade 3;

FIG. 3 is a schematic cross-sectional structure view of a louver unit blade 4 k;

FIG. 4 is a schematic cross-sectional structure view of a louver unit blade 4 q;

FIG. 5 is a schematic cross-sectional structure view of various vanes 4e of the blind unit;

FIG. 6 is a schematic cross-sectional structure view of the blind unit blades 4k ', 4q ', 4e ';

FIG. 7 is a schematic cross-sectional view illustrating a folded state of variable pitch blind slats;

FIG. 8 is a cross-sectional block diagram of a blade of a variable-pitch blind at a pitch ratio D/L of 1;

FIG. 9 is a cross-sectional block diagram of the slats of the variable-pitch blind at a pitch ratio D/L of 0.5;

FIG. 10 is a schematic cross-sectional view of a closed state of variable pitch blind slats;

FIG. 11 is a schematic view of the structure of blind II;

FIG. 12 is a light reflecting and guiding view of the louver unit blades 3;

FIG. 13 is a light reflection and guide view of the louver unit blades 4 q;

FIG. 14 is a schematic view of section A-A of blind II;

FIG. 15 is an enlarged view of a portion B of the blade, end fitting and side rail configuration of FIG. 14;

FIG. 16 is a three-dimensional block diagram of the end joint of the blade 3;

fig. 17 a three-dimensional exploded view of the end joint of the blade 3;

FIG. 18 is a three-dimensional block diagram of the end fitting of the blade 4 b;

figure 19 is a three-dimensional exploded view of the end fitting of the blade 4 b;

FIG. 20 is a three-dimensional block diagram of the back of the blade with the blade 3 attached to the end fitting;

FIG. 21 is a three-dimensional block diagram of the back of the blade with the blade 4b attached to the end fitting;

FIG. 22 is an enlarged partial schematic view at C of FIG. 11;

FIG. 23 is an enlarged partial schematic view taken at D in FIG. 11;

FIG. 24 is a schematic view of the construction of a glass curtain wall with a built-in blind and its sliding window;

FIG. 25 is a schematic view of the E-E cross-sectional structure of a glass curtain wall with a built-in blind and a sliding window thereof;

fig. 26 is a partially enlarged schematic view at F in fig. 25.

Description of reference numerals: theta₁: the included angle of two bevel edges of the groove; theta₂: the angle between the folded plate and the right side of the groove is formed; theta₃: the included angle between the folded edge at the tail part of the light guide plate and the vertical direction; 1-2: existing blades; 3. 3 ', 4 k', 4q ', 4 e': the blade of the embodiment; 10: a reflector; 20. 21, 2k ' 2q, 2q ', 2e ': a light guide plate; 21': a light guide plate front or transition plate; 30: a groove or a cambered surface slope; 31: upper main blade of shutter system, 32: the upper half secondary blades of the shutter system; 4q1 main blade of lower part of shutter system; 4q 2: lower part of shutter system, 33, 4q 3: a blade groove gap; 5k ', 5n ', 5e ' folding plates; 60: bending edges; I. II: a blind window; 50. 50': an end fitting; 51: a turning part; 511: a head portion; 512: a tail portion; 513. 514, 522, 523: a semicircular cover; 515: ear rolling; 517: a first tab notch group; 518: a second tab notch group; 52: a connecting portion; 53: a connecting pin; 54: a U-shaped pin; 55: a through hole; 56: a first tab notch group; 57: a hindfoot portion; 58: a second tab notch group; 59: a forefoot portion; 61: a top frame; 62: a bottom rail; 63: a side rail; 63 a: a front member; 63 b: a rear member; (ii) a 63a 1: a first open slot; 63b 1: a second open slot; 63a 2: a first cavity; 63b 2: a second cavity; 63a 3: a first card slot; 63b 3: a second card slot; 63a4, 63b 4: fastening screws; 63a 5: a first fastening edge; 63b 5: a first fastening edge; 63a6, 63b 6: a visor; 631: a T-shaped cavity; 632: a guide groove; 633: a shading open slot; 80:a main ladder belt; 81: a secondary ladder belt; 801. 811: single ear with equal distance; 7: a lifting rope; 9: a glass curtain wall; 91. 92, 93: a facade curtain wall; 94: pushing the window; 911. 912: a curtain wall beam; 913. 914: curtain wall columns; 915: curtain wall accessories; 9151: a core sleeve; 9152: edge folding; 9153: a second sealing rubber strip; 9154: pressing a plate; 9155: a heat insulating strip; 9156: a cover plate; 9157: a first seal strip; 9158: a third sealing rubber strip; 9159: a fourth sealing rubber strip; 91510: the glass pressing strip can be disassembled; 91511 fastening screw; 916: hollow glass; 917: the glass can be disassembled.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, for a clearer description, the following explanation is made: the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, are defined as orientations or positional relationships relative to one another as shown in the drawings, which are meant only to facilitate the description of the invention and to simplify the description, and are not meant to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first," "second," and the like are used for purposes of clarity and simplicity of description only and are not to be construed as indicating or implying a relative importance or quantity.

Example 1

Referring to fig. 1 to 2 together, the present embodiment 1 provides a low-deflection louver 3 evolved from the louver 1 of the louver I shown in fig. 1, applied to a louver II, including a reflector front portion 21 ', a groove 30 and a light guide plate, wherein the reflector 10 is arc-shaped for reflecting incident light irradiated on the reflector 10 back to the outside, the light guide plate is arc-shaped and is interrupted by the groove 30 to form two portions, i.e., a light guide plate front portion 21' and a light guide plate rear portion 21, as shown in fig. 2, for deflecting and guiding the incident light irradiated on the light guide plate to an indoor ceiling, the groove 30 is disposed in the middle of a cross section of the louver 3, the groove 30 is extended along the longitudinal direction of the light guide plate front portion 21 'and the light guide plate rear portion 21 to reduce the deflection of the louver 3, the longitudinal direction is the length direction of the light guide plate front portion 21' and the rear portion 21, wherein the, and, the inclination theta 1 of both sides of U-shaped recess 30 is 5 ~ 15, and preferably, the inclination theta 1 of both sides of U-shaped recess 30 specifically is about 8 degrees 0.5, chooses the U-shaped recess 30 of about 8 degrees, can guarantee on the one hand that fold can be compact even when blade 3 draws in to reduce the coincide height, on the other hand, the U-shaped recess 30 of about 8 degrees does not have too big influence to the leaded light rate and the transparency of blade 3 again.

In this embodiment 1, the light reflection plate 10 of the blade 3 can reflect the incident light to the outside of the room according to the requirement of the user, so as to prevent the damage of excessive sunlight and heat radiation in the room, and the front portion 21' and the rear portion 21 of the light guide plate can deflect and guide the incident light to the ceiling of the room and then diffuse and reflect the incident light to the desktop and the wall surface, so as to obtain the illumination effect of uniform sunlight indoors.

Further, the inner side b of the rear portion 21 of the light guide plate is provided with a bent edge 60, and the bent edge 60 is inclined towards the lower right side with respect to the vertical direction, the inclination angle is θ 3, θ 3 is 9-15 °, preferably, θ 3 is about 11 °, and the vertical direction is the up-down direction shown in the figure, so as to enhance the rigidity of the blades 3 and stack the blades 3 compactly and uniformly when the blades 3 are folded, thereby avoiding that the blades 3 cannot be stacked and stored to cause an excessively high stacking height.

Example 2

Referring to fig. 3, the present embodiment 2 provides a T-shaped blade 4k evolved from the blade 3 of the window blind II shown in fig. 2, applied to the window blind II, wherein a dotted line 21 is a light guide plate rear portion 21 of the blade 3, and includes a light reflection plate 10, a transition plate 21 ', a groove 30 and a light guide plate 2k, wherein the light reflection plate 10, the transition plate 21' and the groove 30 respectively refer to corresponding portions of the blade 3, the light guide plate 2k is arc-shaped for deflecting incident light irradiated thereon to be guided to an indoor ceiling or a backlight surface of a previous blade, the light guide plate 2k is obtained by rotating the light guide plate 21 of the blade 3 downward around an inner side b thereof and intersecting a portion k at 1/3 from a top g of a right side of the groove 30 to a bottom e of the groove, an inner bent edge 60 of the light guide plate 2k refers to a corresponding portion of the blade 3, so as to enhance rigidity of the blade 4k and to be stacked compactly and uniformly when the blade, the blade 4k is prevented from being folded and stored to cause the stacking height to be too high.

In this embodiment 2, the light reflection plate 10 of the blade 4k can reflect the incident light back to the outdoor according to the requirement of the user so as to prevent the damage of excessive sunlight and heat radiation in the room, and the light guide plate 2k can deflect and guide the incident light to the indoor ceiling so as to obtain the illumination effect of uniform sunlight in the room.

Example 3

Referring to fig. 4, the present embodiment 3 provides a T-shaped blade 4q evolved from the blade 3 of the window blind II shown in fig. 2, applied to the window blind II, wherein a dotted line 21 is a light guide plate rear portion 21 of the blade 3, and comprises a light reflection plate 10, a transition plate 21 ', a groove 30 and a light guide plate 2q, wherein the light reflection plate 10, the transition plate 21' and the groove 30 respectively refer to corresponding portions of the blade 3, the light guide plate 2q is arc-shaped for deflecting incident light irradiated thereon to be guided to an indoor ceiling or a backlight surface of a previous blade, the light guide plate 2q is obtained by rotating the light guide plate 21 of the blade 3 downward around an inner side b thereof and intersecting q at 2/3 where an end extension section thereof intersects q from a top portion g on the right side of the groove 30 to a bottom portion e of the groove, an inner bent edge 60 of the light guide plate 2q refers to a corresponding portion of the blade 3, so as to enhance the rigidity of the blade 4q and to, the phenomenon that the blades 4q cannot be folded and stored to cause the stacking height to be too high is avoided.

In this embodiment 2, the light reflection plate 10 of the blade 4q can reflect the incident light back to the outdoor according to the requirement of the user so as to prevent the damage of excessive sunlight and heat radiation in the room, and the light guide plate 2q can deflect and guide the incident light to the indoor ceiling so as to obtain the illumination effect of uniform sunlight in the room.

Example 4

Referring to fig. 5, this embodiment 4 provides a T-shaped blade 4e evolved from the blade 3 of the window blind II shown in fig. 2, applied to the window blind II, wherein the dotted line 21 is the rear portion 21 of the light guide plate of the blade 3, and comprises a light reflection plate 10, a transition plate 21 ', a groove 30 and a light guide plate 2q, wherein the light reflection plate 10, the transition plate 21' and the groove 30 respectively refer to corresponding portions of the blade 3, the light guide plate 2e is arc-shaped and is used for deflecting and guiding incident light irradiated thereon to an indoor ceiling or a backlight surface of a previous blade, the light guide plate 2e is obtained by rotating the light guide plate 21 of the blade 3 downwards around the inner side b thereof and having an end extension tangent to the bottom e at the right side of the groove 30, the inner bent edge 60 of the light guide plate 2e refers to corresponding portions of the blade 3, so as to enhance the rigidity of the blade 4e and to be compact and uniform when, the blade 4e is prevented from being folded and stored to cause the stacking height to be too high.

In this embodiment 4, the light reflection plate 10 of the blade 4e can reflect the incident light back to the outdoor according to the requirement of the user, so as to prevent the damage of excessive sunlight and heat radiation in the room, and the light guide plate 2e can deflect and guide the incident light to the indoor ceiling, so as to obtain the illumination effect of uniform sunlight in the room.

Example 5

Referring to fig. 6, the embodiment 5 provides T-shaped blades 4k ', 4q ', and 4e ' applied to a window blind II, where the blades 4k ', 4q ', and 4e ' include a reflector 10, a transition plate 21 ', a groove 30, a folded plate 5k ', 5q ', and 5e ', and a light guide plate 2k ', 2q ', and 2e ', where the reflector 10, the transition plate 21 ', the groove 30, and the folded plate 5k ', 5q ', and 5e ' are disposed on the light guide plate 2k ', 2q ', and 2eThe transition plate 21' and the groove 30 respectively refer to corresponding parts of the vane 3, extend downwards from the top g of the right side of the groove 30 and form an angle theta with the right side of the groove 30₂The inner side bends 60 of the light guide plates 2k ', 2 q', 2e 'of example 5 are cited as corresponding portions of the blade 3, and the inner side bends 60 of the light guide plates 2 k', 2q ', 2 e' of example 3 are cited as corresponding portions of the blade 3.

In the embodiment 5, the light reflecting plates 10 of the blades 4k ', 4 q', 4e 'can reflect the incident light beams outdoors back to outdoors according to the requirement of the user so as to prevent the damage of excessive sunshine and heat radiation indoors, and the light guide plates 2 k', 2q ', 2 e' can deflect and guide the incident light beams outdoors onto the indoor ceiling, so that the indoor lighting effect of uniform sunshine can be obtained indoors.

The deflection under the weight of the T-shaped blades 3, 4k, 4q, 4e, 4k ', 4q ', and 4e ' of the aluminum alloy 3003 of examples 1 to 5 having a cross-sectional width of 50mm and a blade thickness of 0.18mm was compared with the deflection under the weight of the prior art blades 1 to 2 in a summary manner, as shown in Table 1 below.

TABLE 1 summary comparison of deflection of T-shaped blades under self-weight of blades 1 and 2

Table 2 compares the deflection under the self weight of T-shaped blades 3, 4k, 4q, 4e, 4k ', 4q ', 4e ' of aluminum alloy 3003 having a cross-sectional width of 100mm and a blade thickness of 0.3mm in examples 1 to 5 with the deflection under the self weight of blades 1 to 2 in the prior art.

TABLE 2 summary comparison of deflection of T-shaped blades under self-weight with blades 1 and 2

Referring to FIG. 1, FIG. 1 illustrates the cross-sectional geometry and dimensional definition of a prior art blade 1-2.

In the field of blinds I technology, there are generally involved several concepts, respectively: blade pitch D, blade width L, pitch ratio D/L, blade height h and transparency Γ.

The transparency Γ is the ratio of the height of the horizontal visible portion between two adjacent blades 1 through the blind I to the spacing between two adjacent blades 1.

As shown in fig. 1, a horizontal distance between an outer end a and an inner end b of a louver I blade 1 is defined as a blade width L; in the system of the shutter I, the vertical distance between the same points a and a' of two adjacent blades 1 is D, the distance from the bottommost part a of the blade 1 to the highest point c of the blade 1 is the blade height h, and the transparency gamma = 1-h/D.

Referring to fig. 1, the conventional blade 1 does not generally consider the deflection problem of the blade 1 under its own weight, and when the pitch ratio D/L =1.0, h/D =0.23, and the transparency formula Γ =1-h/D, Γ =77%, referring to table 1, although the transparency of the conventional blade 1 is extremely high, the deflection of the blade 1 is as high as 10.96mm when the blade thickness is 0.18mm and the blade length (span) is 1.8m, and the deflection of the blade 1 is as high as 42.2mm when the blade thickness is 0.30mm and the blade length (span) is 3.6 m.

Whereas the T-shaped blades 3, 4k, 4q, 4e, 4k ', 4 q', 4e 'of the embodiments 1 to 5 of the present invention have a ratio of a distance h from the bottom e of the groove 30 of the T-shaped blade 3, 4k, 4q, 4e, 4 k', 4q ', 4 e' to the highest point c of the T-shaped blade 3, 4k, 4q, 4e, 4k ', 4 q', 4e 'to the blade pitch D of the T-shaped blade 3, 4k, 4q, 4e, 4 k', 4q ', 4 e' of about 0.26 when the pitch ratio D/L =1.0, i.e. h/D =0.26, D/L =1.0, from the transparency formula Γ =1-h/D, it is known that Γ =74%, the T-shaped blades 3, 4k, 4q, 4e ', 4 q', 4k ', 4 e' are slightly less transparent than the existing blades 1-2, and for the flexibility of the T-shaped blades of the present invention, the deflection of the T-shaped blades 3, 4k, 4q, 4e, 4k ', 4q ' and 4e ' is reduced to 3.4-3.92 mm when the blade thickness is 0.18mm and the blade length is 1.8m, the deflection of the T-shaped blades 3, 4k, 4q, 4e, 4k ', 4q ' and 4e ' is reduced to 14-18.9 mm when the blade thickness is 0.30mm and the blade length is 3.6m, and the deflection of the T-shaped blades 3, 4k, 4q, 4e, 4k ', 4q ' and 4e ' is obviously reduced compared with the prior art.

On the premise of ensuring that the transparency of the T-shaped blades 3, 4k, 4q, 4e, 4k ', 4 q' and 4e 'is not low, the embodiment of the invention reduces the transparency of the T-shaped blades 3, 4k, 4q, 4e, 4 k', 4q 'and 4 e' by forming the grooves 30 along the longitudinal extension of the light guide plate 20, and increases the rigidity of the T-shaped blades 3, 4k, 4q, 4e, 4k ', 4 q' and 4e ', thereby achieving the purposes of small deflection, large span and small superposition height of the T-shaped blades 3, 4k, 4q, 4e, 4 k', 4q 'and 4 e'.

Fig. 7 to 10 show 4 conditions of the two-division variable pitch louver II, such as folding, pitch ratio D/L =1.0, pitch ratio D/L =0.5, and closing, in which the blades 3 and 4q are applied, the two-division variable pitch louver is divided into two parts of 1.7m above and below the ground, the upper part of the two-division variable pitch louver adopts the blade 3, the lower part adopts the blade 4q, the blades of the two-division variable pitch louver are divided into main blades 31 and 4q1 and secondary blades 32 and 4q2, which are respectively controlled by different groups of ladders, the main blade 31 and the secondary blade 32 are the same type of blade, and the main blade 4q1 and the secondary blade 4q2 are the same type of blade. As can be seen from the figure, the two-section type variable pitch louver for a French window having a 2.5m high louver with a 2mm overlap pitch has a 100-piece louver blade number, an overlap height of 200mm, a transparency Γ of 70.5% at a pitch ratio D/L =1.0, and a transparency Γ of 49% at a pitch ratio D/L = 0.5. Because the blade overlap degree is high, shading effect and privacy when two-section type variable pitch shutter closes are shielded the effect very good.

Fig. 12 and 13 show the lighting effect diagrams of the T-shaped blades 3 and 4q adjusting the reflection amount and the light guiding amount by changing the blade pitch and the blade angle in each solar altitude H, respectively, in which (a) and (c) are to totally reflect the light to the outside by changing the blade angle at the minimum blade pitch (D/L = 0.5), and the rest of the diagrams only adjust the reflection amount and the light guiding amount by changing the blade pitch, and as can be seen from the diagrams, the T-shaped blades can well cope with the change of the sun, adjust the reflection amount and the light inlet amount of the sunlight according to the actual needs of people, and eliminate the glare.

Example 6

Referring to fig. 11 and 14 to 23, an embodiment of the present invention further provides a two-section type variable-pitch blind II with side rails at two ends, which includes a top rail 61, a bottom rail 62, two side rails 63, 64, a lifting and turning device (not shown), a plurality of blades 3, 4q as described in any of the above technical solutions, and a plurality of end connectors 50, 50' fixedly connected to two ends thereof, a lifting rope 7, and ladder-belt sets 80, 81; the lifting and overturning device is arranged in the top rail 61, the blades 3 and 4q are arranged between the top rail 61 and the bottom rail 62, the blade 3 is arranged above 1.7m away from the ground, the blade 4q is arranged below 1.7m away from the ground, the end parts of the blades 3 and 4q are respectively provided with a section of groove 33 and 4q3 (see fig. 20 and 21) so that the blades 3 and 4q do not interfere with each other when being overlapped, the end joints 50 and 50 'are respectively arranged at the two end parts of the blades 3 and 4q, the end joints 50 and 50' can be accommodated in the side rails (see fig. 15), the lifting rope 7 passes through a through hole 515 at the T-shaped tail part of the end joints 50 and 50 ', the lower end of the lifting rope 7 is connected with the bottom rail 62, the upper end of the lifting rope 7 is connected with a lifting wheel in the lifting and overturning device, the ladder belt groups 80 and 81 are respectively connected with the end joints 50 and 50', and the winding wheel mechanisms in the lifting and overturning device, one lower end of each of the ladder strap sets 80, 81 is connected to the other lower end thereof, bypassing the bottom rail 62.

Referring to fig. 7 to 10, the blind II includes a furled state, an unfolded state, a variable pitch state and a turned state, in the furled state, the lifting wheel in the lifting and turning device lifts the bottom rail 62 through the lifting rope 7 and stacks and folds the blades 3, 4q from bottom to top; in the unfolding state, a lifting wheel in the lifting turner is lowered through a lifting rope 7, and the bottom rail 62 and the blades 3 and 4q are sequentially unfolded from top to bottom by means of the self weight; in the variable-pitch and turnover state, the winding wheel mechanism in the lifting turnover device drives the blades 3 and 4c to be closed in variable-pitch and turnover mode through the ladder belt groups 80 and 81.

For the lifting tumbler, the lifting tumblers in patents CN102808573B, CN102839906B, CN102808577B and CN102900347B can be adopted, and certainly, other existing lifting tumblers can also be adopted for cooperation, so that the main functions of the lifting tumbler can be realized.

Fig. 16 shows a three-dimensional structure diagram of the end joint 50, fig. 17 shows a three-dimensional exploded view of the end joint 50, the end joint 50 includes a turning part 51, a connecting pin 53, a U-shaped pin 54 and a connecting part 52, the turning part 51 is shaped like a T, two sides of the T-shaped head of the turning part 51 are provided with lugs 515, and lug notch sets are provided at positions corresponding to the ladder-belt sets 80, 81, the T-shaped tail of the turning part 51 is provided with a through hole 516 for passing the lifting rope 7, the symmetrical middle line of the turning part 51 is provided with semicircular covers 513, 514 staggered up and down to form a plug pin pipe, the connecting part 52 is the same as the cross-sectional shape of the blade 3 except the groove 30, and the symmetrical middle line thereof is provided with semicircular covers 522, 523 staggered up and down to form a plug pin pipe, the connecting part 52 is further provided with a plurality of riveting through holes 524 and fixed with the end of the blade 3 by rivets or other linking means, two legs 542 of the U-shaped pin 54 are respectively inserted into the lugs 515, one end of the connecting pin 53 is inserted into and fixed to the pin tube of the connecting portion 52, and the other end is inserted into and fixed to the pin tube of the turning portion 51. Similarly, fig. 18 shows a three-dimensional structural view of the end fitting 50 ', and fig. 19 shows a three-dimensional exploded view of the end fitting 50 ', the end fitting 50 ' being identical in structure to the end fitting 50 except that the connecting portion 52 ' of the end fitting 50 ' has the same cross-sectional shape as the blade 4q except for the groove 4q3 and is fixedly connected thereto.

Fig. 15 is a partial enlarged view of the structure of the blade, the end joint and the side rail, which shows the matching relationship among the three, in which the lift flipper performs the variable pitch and rotation of the blade 4q through the ladder assembly with the connecting pin 53 of the end joint 50 as the central axis, wherein the side 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 and are respectively provided with a first open slot 63a1, a second open slot 63b1, a first cavity 63a2, a second cavity 63b2 and a light shielding plate 63a6, 63b6, the first cavity 63a2 and the second cavity 63b2 play a role in reinforcing the strength and rigidity of the two members, the rear ends of the front member 63a and the rear member 63b are respectively provided with a first 3, a second 63b3, a first fastening edge 63a5 and a second fastening edge 63b5, the front member 63a is firstly fixed on the wall 63a through the front slot 63a4, and then passes through the front slot 63a and the rear member 63a3, 63b3 are mutually embedded to form a T-shaped cavity 631, a guide groove 632 and a shading open slot 633, and the second fastening edge 63b5 of the rear member 63b is tightly connected with the first fastening edge 63a5 of the front member 63a by screws 63a4, the embedding and screw fastening connection of the slots ensures that the formed side guide rail 63 is stable and not easy to deform, the tail of the T-shaped cavity 631 can accommodate the tail 512 of the turnover part 51 of the end connector 50, the head of the T-shaped cavity 631 can accommodate the head 511 of the turnover part 51 of the end connector 50, the exposed part of the connecting pin 53 between the connecting part 52 and the turnover part 51 is restrained in the guide groove 632, so that the end connector 50 is restrained in the side guide rail 63 to slide and rotate, and the gap defect between the end of the blade 4q and the side guide rail 63 is shielded and compensated by the shading open slot 633 of the side guide rail 63.

Referring to fig. 8 to 10, fig. 22 to 23, the blades of the two-section type variable pitch blind II are divided into main blades 31, 4q1 and sub blades 32, 4q2, and the main blades 31, 4q1 and the sub blades 32, 4q2 are respectively arranged from top to bottom at intervals one by one, the equidistant single lug 801 on the main ladder tape 80 and the equidistant single lug 811 on the sub ladder tape 81 are staggered and arranged, and the equidistant single lug 801 on the main ladder tape 80 is correspondingly connected with the main blades 31, 4q1, the equidistant single lug 811 on the sub ladder tape 81 is correspondingly connected with the sub blades 32, 4q2, the number of the lug notch sets of the end connectors 50, 50' is two, the two lug notch sets are respectively a first lug notch set 517 and a second lug notch set 518, the ladder tape set comprises a main ladder tape 80 and a sub ladder tape 81, wherein the upper end of the main ladder tape 80 is connected with a reel mechanism in the lifter, the lower end of the main ladder tape 80 passes through the bottom rail 62 and the lower end of the main ladder tape, the equidistant single lug 801 of the front cord and the rear cord of the main ladder belt 80 is connected to the exposed portion 519 of the U-shaped pin 54 at the first lug notch set 517 of the main blades 31, 4q1, the upper end of the secondary ladder belt 81 is connected to the reel mechanism in the lifter/flipper, the lower end of the front cord of the secondary ladder belt 81 is passed around from the bottom of the bottom rail 62 and is abutted against the lower end of the rear cord of the secondary ladder belt 81, and the equidistant single lug 811 of the front cord and the rear cord of the secondary ladder belt 81 is connected to the exposed portion 5110 of the U-shaped pin 54 at the second lug notch set 518 of the secondary blades 32, 4q2, respectively.

Example 7

Referring to fig. 24 to 26, an embodiment of the present invention further provides a glass curtain wall 9 with a built-in two-half variable-pitch louver II, specifically, the two-half variable-pitch louver II composed of the blades described in the embodiments 1 to 4 is fused with the glass curtain wall 9, and includes facade curtain walls 91, 92, 93 and a push window 94. The facade curtain wall 91 comprises two curtain wall beams 911, 912, two curtain wall uprights 913, 914, a curtain wall attachment 915, hollow glass 916, detachable glass 917 and a shutter II as described in any of the previous claims. The curtain wall accessory 915 comprises a core sleeve 9151, a strip-folding edge 9152, a second sealing rubber strip 9153, a pressing plate 9154, a heat-insulating 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, wherein curtain wall cross beams 91 and 92 are transversely arranged between curtain wall upright columns 93 and 94, and a curtain wall framework is formed between the curtain wall cross beams 91 and 92 and the curtain wall upright columns 93 and 94; the hollow glass is positioned on the outer side of the curtain wall frame, the detachable glass is positioned on the inner side of the curtain wall frame, the edge folding strips 9152, the second sealing rubber strips 9153, the heat insulation strips 9155, the hollow glass 916 and the first sealing strips 9157 are arranged between the upright posts 913 and the pressing plate 9154, the second sealing rubber strips 9153 and the first sealing strips 9157 are respectively arranged in sealing cavities on two sides of the upright posts 913 and the pressing plate 9154, the upright posts 913 and the pressing plate 9154 are connected through screws 91511, the cover plate 9156 is clamped on the pressing plate 9154, and the hollow glass 916 is positioned on the outer side of the curtain wall frame; the side guide rail 63 of the two-part variable-pitch window blind II is fixed on the side wall of the upright 913 by screws 63a4, 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, the fastening edge 63b5 of the rear member 63b is deformed from a straight edge into a hook 91512, so that the detachable glass molding 91510 is embedded with the side guide rail and the detachable glass 917 to restrain the detachable glass 917 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 molding 91510; the two-part variable-pitch blind II' is arranged in the curtain wall frame along with the side guide rail 63, and is positioned between the hollow glass 916 and the detachable glass 917.

The glass curtain wall 9 with the built-in bipartite variable-pitch louver II has 3 new functions, namely a better heat insulation and energy saving function, a better sound insulation function and prevention of dust falling on blades of the louver II, besides the functions of the louver II and the curtain wall.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides a large-span, little amount of deflection shutter plate, is applied to on the shutter which characterized in that includes:

the reflector is used for reflecting incident light irradiated on the reflector;

the light guide plate is connected with the reflector and is used for guiding incident light irradiated on the light guide plate;

the groove is arranged on the light guide plate and formed by extending along the longitudinal direction of the light guide plate.

2. The large-span and small-deflection louver blade as claimed in claim 1, wherein the cross section of the groove is U-shaped, and the inclination of two sides of the groove is 5-15 °.

3. The large-span small-deflection louver of claim 2 wherein the lightguide plate is an arc-shaped lightguide plate and the lightguide plate is interrupted by the grooves to form a lightguide plate front and a lightguide plate rear.

4. A large-span, small-deflection slat according to claim 2, wherein said slat further comprises:

the transition plate extends leftwards and upwards from the top of the left side of the groove to intersect with the right side of the reflector;

the folded plate extends downwards from the top on the right side of the groove to be intersected with the light guide plate, and an included angle between the folded plate and the right side of the groove is 40-50 degrees;

the light guide plate is an arc-shaped light guide plate, the left side of the light guide plate extends leftwards and can be intersected with the folded plate, or the left side of the light guide plate extends leftwards and downwards and can be tangent to the bottom of the groove.

5. A large-span, small-deflection slat according to claim 2, wherein said slat further comprises:

the transition plate extends leftwards and upwards from the top of the left side of the groove to intersect with the right side of the reflector;

wherein, the light guide plate extend to left for its left side with the crossing arc light guide plate in recess right side, or, the light guide plate extends downwards left for its left side to with the tangent arc light guide plate in recess bottom.

6. The large-span small-deflection louver blade according to any one of claims 1 to 5, wherein a side edge of the light guide plate away from the reflector is provided with a bent edge, the bent edge is inclined towards a lower right direction with respect to a vertical direction, and an included angle between the bent edge and the vertical direction is 9-15 °.

7. A blind, comprising:

a frame comprising a top rail, a bottom rail, and a side rail;

the lifting turner is arranged in the top rail;

a plurality of vanes according to any one of claims 1 to 6 disposed between said head rail and said bottom rail and having ends each truncated by a section of said groove so that said vanes do not interfere with each other when stacked;

a plurality of end fittings respectively disposed at ends of the plurality of blades, the plurality of end fittings receivable within the side rails;

the lifting rope penetrates through the end part joint, the lower end of the lifting rope is connected with the bottom rail, and the upper end of the lifting rope is connected with a lifting wheel in the lifting turner;

the ladder belt groups are correspondingly connected with the end joints respectively, the upper ends of the ladder belt groups are connected with a winding wheel mechanism in the lifting turner, and the lower ends of the ladder belt groups are connected with the bottom rail;

the louver comprises a furled state, an unfolded state, a variable-spacing state and a turnover state, wherein in the furled state, a lifting wheel in the lifting turnover device lifts a bottom rail through a lifting rope and sequentially stacks and folds the blades from bottom to top; in the unfolding state, a lifting wheel in the lifting turner is lowered through the lifting rope, and the bottom rail and the blades are sequentially unfolded from top to bottom by virtue of the self weight; and in the variable-pitch and overturning state, a winding wheel mechanism in the lifting overturning device drives the blades through the ladder belt set to perform variable-pitch and overturning closing.

8. A blind according to claim 7, wherein the end fitting comprises:

the connecting part is riveted with the end part of the blade, and a semicircular cover which is staggered up and down is arranged on the symmetrical center line of the connecting part to form a latch pipe;

the two sides of the T-shaped head of the turnover part are provided with a lug, a lug notch group is arranged at a position corresponding to the ladder belt group, a symmetrical central line of the turnover part is provided with semicircular covers staggered up and down to form a latch pipe, and the T-shaped tail of the turnover part is provided with a through hole for the lifting rope to pass through;

one end of the connecting pin is inserted into and fixed with the plug pin pipe of the connecting part, and the other end of the connecting pin is inserted into and fixed with the plug pin pipe of the overturning part;

two legs of the U-shaped pin are respectively and correspondingly inserted into the eye curls on two sides of the turnover part;

wherein, the side guide rail divide into preceding component and back component, preceding component with back component equipment forms T shape cavity, guide way and shading open slot, T shape cavity afterbody can hold the afterbody of tip joint's upset portion, T shape cavity head can hold the head of tip joint's upset portion, connecting portion with connecting pin between the upset portion exposes the part restraint and is in the guide way, thereby will the tip joint restraint is in slide in the side guide rail and rotate, the tip of blade with space defect between the side guide rail is then passed through the shading open slot of side guide rail shelters from and compensaties.

9. A blind according to claim 8, wherein said number of said tab gap groups is two, and said two tab gap groups are a first tab gap group and a second tab gap group, respectively, said ladder tape group comprising:

the upper end of the main ladder belt is connected with a winding wheel mechanism in the lifting turner, the lower end of a front rope of the main ladder belt is wound from the bottom of the bottom rail and butted with the lower end of a rear rope of the main ladder belt, and the equidistant single lugs of the front rope and the rear rope of the main ladder belt are connected with the exposed part of the U-shaped pin at the first lug gap group of the main blade;

the upper end of the secondary ladder belt is connected with a winding wheel mechanism in the lifting turner, the lower end of a front cable of the secondary ladder belt is wound from the bottom of the bottom rail to be butted with the lower end of a rear cable of the secondary ladder belt, and the equidistant single lugs of the front cable and the rear cable of the secondary ladder belt are respectively connected with the exposed part of the U-shaped pin at the second winding lug notch group of the secondary blade;

wherein, it is a plurality of the blade divide into main blade and inferior blade, just, main blade with inferior blade is from last to lower one-to-one interval arrangement respectively, the equidistance monaural on the main ladder area with the equidistance monaural staggered arrangement on the inferior ladder area, just, the equidistance monaural on the main ladder area with main blade corresponds the connection, the equidistance monaural on the inferior ladder area with inferior blade corresponds the connection.

10. The utility model provides a glass curtain wall of built-in tripe curtain which characterized in that, glass curtain wall includes the facade curtain wall, the facade curtain wall includes:

at least two curtain wall uprights;

the curtain wall cross beams are transversely arranged between the curtain wall stand columns, and a curtain wall framework is formed between the curtain wall cross beams and the curtain wall stand columns;

the push window is arranged on the curtain wall frame;

the hollow glass is arranged on the curtain wall frame and is positioned on the outer side of the curtain wall frame;

the detachable glass is arranged on the curtain wall framework, and is positioned on the inner side of the curtain wall framework;

a blind as claimed in any one of claims 7 to 9, disposed within the curtain wall framing, and located between the insulating glass and the demountable glass;

the curtain wall accessory comprises a core sleeve, a folding 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 stand column and the pressing plate are provided with the folding edge, the second sealing rubber strip, the heat insulation strip, hollow glass and the first sealing strip, the second sealing rubber strip and the first sealing strip are respectively arranged in sealing cavities on two sides of the stand column and the pressing plate, the stand column and the pressing plate are connected through fasteners, the cover plate is clamped on the pressing plate, the side guide rails and the detachable glass are arranged between the detachable glass, the detachable glass is arranged between the glass pressing strip, and the fourth sealing rubber strip and the third sealing rubber strip are arranged between the glass pressing strip.

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