CN107044251A - It is a kind of can with erection of doors and windows one and be easy to maintenance external roller blind system - Google Patents

Abstract

The present invention relates to a kind of external roller blind system that can be integrated with erection of doors and windows and be easy to maintenance, including curtain box and two guide rails, the curtain box includes top plate, bottom plate, outside plate, interior access panel and two end seats；The outside of the top plate and the top of outside plate are mutually inserted by wedge groove with convex wedge；Described two end seats are symmetrical set, and use mode connects for screw with the end of the top plate, outside plate and bottom plate；The gap passed through for roller shutter is left between the outside plate and bottom plate；The interior access panel is removably inlaid on the indoor maintenance hole surrounded by top plate, bottom plate and two end seats by the boss on the inside of it；The curtain box is arranged on the top of window frame；Two guide rails are symmetrically mounted at the both sides of window frame, and upper end is connected with the curtain box；Roller shutter in the curtain box provided with winding on the drive means；The roller shutter lower end can pass through to slide along the guide rail behind the gap and lift.The present invention can compact conformation, install simple, and make maintenance more safe ready.

Description

It is a kind of can with erection of doors and windows one and be easy to maintenance external roller blind system

Technical field

The present invention relates to a kind of Building Outside Shading of Window system, it can especially be arranged on building doors and windows and can repair indoors External sunshade system, specifically it is a kind of can with erection of doors and windows one and be easy to maintenance external roller blind system.

Background technology

Since 20 end of the centurys since introducing product and technology, various external sunshade systems have been increasingly becoming south China summer heat Winter cryogenic region building energy conservation critical facility.But current external roller blind is arranged on the outside of external window of building in or beyond window opening mostly On wall metope, each self installation is distinguished with external window of building, this mounting means at least has problems with：External shading device profile shadow Ring architectural appearance, stop window portion daylighting area, and increase windage；Rear anchor piece for fixing roller shutter passes through external wall Heat-insulation layer, waterproof layer are installed, and have impact on the easy loose or dislocation of insulation, waterproof effect, and anchoring piece；When mounted, pass through mostly Measure the window opening black skin actual size of rendering by hand to determine the width and height dimension of external roller blind, it is impossible to unified chi It is very little, it is difficult to standardize, mass production, inconvenient production management；Once breaking down during external roller blind use, Ren Yuanbi Climbing must be taken a risk to being repaired outside window, it is dangerous very big.Therefore, needing exploitation one kind badly can be integrated and be easy to erection of doors and windows The external roller blind device of maintenance, solves the above problems, and meets the demand in market.

The content of the invention

The purpose of the present invention is that there is provided one for many defects in existing external roller blind manufacture, installation, maintenance at present Plant can be with that can install the external roller blind that be integrated and be easy to maintenance with building doors and windows, and it has compact conformation, easily manufactured, peace The features such as dress is simple, maintenance is safe, with low cost, energy-saving effect is excellent, is conducive to improving manufacture, installation quality, reduction maintenance Cost, so that the need for better meeting market.

The technical scheme is that：

A kind of external roller blind system that can be integrated with erection of doors and windows and be easy to maintenance, including curtain box and two guide rails, it is described Curtain box is rectangular box, including top plate, bottom plate, outside plate, interior access panel and two end seats；The outside of the top plate and outside plate it is upper While being mutually inserted by wedge groove with convex wedge；Described two end seats are symmetrical set, and with the end of the top plate, outside plate and bottom plate Portion uses mode connects for screw；The gap passed through for roller shutter is left between the outside plate and bottom plate；The interior access panel passes through its inner side Boss be removably inlaid on the indoor maintenance hole surrounded by top plate, bottom plate and two end seats；The curtain box is arranged on The top of window frame, and by multiple sliding connectors with being interfixed after the mutually embedding connection of the window frame with screw；Two guide rails The both sides of window frame are symmetrically mounted at, upper end is connected with the curtain box；Volume in the curtain box provided with winding on the drive means Curtain；The roller shutter lower end can pass through to slide along the guide rail behind the gap and lift.

Further, the top plate, bottom plate, outside plate, interior access panel and two end seats are to be made by hyperpyrexia resistance material extruding Into

Section bar, and multiple cavitys are set on section bar section, to reduce heat bridge and to increase thermal resistance, improve energy-saving effect.

Further, the inner surface of the top plate, bottom plate, outside plate and interior access panel is the face of cylinder, and from bottom plate Surface is risen, and the curvature segmentation on the face of cylinder of each plate is equivalent to be increased and be smoothly connected, and the surface of internal cavity and roller shutter for making the curtain box are wound Gap convergence between the cylinder of the approximate Archimedes spiral of formed, bus is uniform, and makes the roller shutter capacity of curtain box for most Greatly.

Further, indoor maintenance hole periphery is provided with the frame surrounded by upper ledge material, underframe material and two frame material Frame；

The section of the upper ledge material and frame material is U-shaped, and the section of the underframe material is L-shaped；At the indoor maintenance hole Top plate, bottom plate and end seat on be respectively equipped with neck, make the upper ledge material, underframe material and frame material respectively by sharp on its section The grab hook that end position is set is fixed in corresponding neck.

Further, the end seat includes side coaming, panel, Circular Plate and round bottom plate, and its structure is symmetrical above and below；It is described The center of round bottom plate is provided with the axis for being used for installing drive device, and the longitudinal direction of its medial surface is diametrically symmetrical with the center of circle provided with two Elongated slot, its lateral surface be provided with twice vertical rib and two groups of intersection diagonal ribs；The twice vertical rib is symmetrical to be arranged at The elongated slot both sides, to mounting screw；Two groups of diagonal ribs are symmetrical set, per the roads of Zu Wei tri-, to reinforcing soleplate；Institute State Circular Plate and each to setting multiple tracks ribs between side coaming respectively by intensity requirement.

Further, the outer surface of the interior access panel, outside plate and bottom plate be each provided with inner veneer, exterior trim panel and in Frame

Material, and multiple necks, enable the inner veneer, exterior trim panel and center material to be set by its section upper prong position The grab hook put is fixed in corresponding neck.

Further, the interior access panel is provided with ladder boss and circular arc boss and bottom plate, and is pushed against with plate inner surface And compress the sealing ring in the friendship circle groove of top plate inner face, bottom plate and end seat inner side edge and form primary seal band, it is real Existing air-tightness, watertightness；The interior access panel makes interior access panel with being provided with sealing strip in the groove of the back plate connections Interior side steps boss pushes against the sealing strip and forms time band；Total length is provided with drip on the inside of the interior access panel；It is described to hand over Enclose by design spacing installation and repairing board button in groove, its inner press strip is placed in below sealing ring, the bending grab of outer end Hook is lived interior access panel upper side edge and fixed.

Further, the end seat side coaming is provided with square hole, and the Circular Plate is provided with Multifunctional perforated, the round bottom plate On

Provided with binding post, the power line of the drive device is set to be connected to after sequentially passing through the square hole and Multifunctional perforated Powered on the binding post；Or control steel wire rope to realize hand after sequentially passing through the square hole and Multifunctional perforated by manual Dynamic control.

Further, the end seat one groove of setting respectively symmetrical above and below between Circular Plate and side coaming, this is recessed Groove

Inwall provided with two square jacks, can make roller shutter seeker side's jack is inserted by the pin that its back side is set and The embedded groove；The pin end is provided with elastic fastener, can catch on the outward flange of side's jack and fasten connection； The end seat inside bottom, which is closed on, is provided with roller shutter seeker at the gap.

Further, the sliding connector includes contiguous block, screw, and the contiguous block passes through the symmetrically arranged card in both sides Hook is plugged in the neck of the bottom plate, and the grab of the convex shoulder top pressure outer window frame on the right side of it, the arc surface in left side props up grab end Portion's facade, and be interconnected and fixed window frame, contiguous block, curtain box using screw.

Beneficial effects of the present invention：

The present invention devises the roller blind system that can be assembled into one and be repaired by indoor maintenance mouth with door and window, its structure It is compact, easily manufactured, simple, good appearance is installed, it is energy-conserving and environment-protective, with low cost, suitable for standardization, mass manufacture, install, Safe ready is repaired, raising product quality, reduction production cost are helped, beneficial to popularization and application.

Brief description of the drawings

Stereoscopic figure when Fig. 1 is roller shutter expansion of the present invention.

Fig. 2 is broken section enlarged drawing of the present invention.

Fig. 3 is Fig. 1 of the present invention C-C sectional views.

Fig. 4 is the exploded isometric figure of main building block of the invention.

Fig. 5 is the exploded isometric figure of the main composition component of the curtain box of the present invention.

Fig. 6 is the sectional block diagram of each decorative panel mounting means in Fig. 2 curtains box of the present invention.

Fig. 7 is the vertical cross section of the curtain box of the present invention.

Fig. 8 is enlarged partial isometric view at Fig. 6 of the present invention A.

Fig. 9 is enlarged partial isometric view at Fig. 6 of the present invention B.

Figure 10 is enlarged partial isometric view at Fig. 6 of the present invention C.

Figure 11 is the inner side stereogram of end seat of the present invention.

Figure 12 is the perspective outboard view of end seat of the present invention.

Figure 13 is the stereogram of the interior access panel of the present invention.

Figure 14 is the curtain box end seeker assembling stereogram of the present invention.

Figure 15 is the K direction views of the end seat of the present invention.

Figure 16 is enlarged partial isometric view at Fig. 2 of the present invention E.

Wherein：1- roller shutters, 2- drive devices, 2-1- drive shafts, 2-2- terminal pads, 2-3- afterbodys socket, the 2-4- axis of rolling Hold, 2-5- power lines, 2-6- binding posts, 2-7- drive devices, 2-8- flower keyboards, 3- curtains box, 3-1- end seats, 3-1-1- skirts Plate, 3-1-2- panels, 3-1-3- Circular Plates, 3-1-4- round bottom plates, 3-1-5- axis, 3-1-6- elongated slots, 3-1-7- vertical ribs, 3- 1-8- intersects diagonal rib, 3-1-9 ribs, 3-1-11- square holes, 3-1-12 Multifunctional perforateds, 3-1-13 grooves, 3-1-14- inwalls, 3- 1-15- side's jack, 3-2- top plates, 3-2-1- grooves, 3-3- outside plates, the convex wedges of 3-3-1-, 3-4- bottom plates, access panel, 3- in 3-5- 5-1- bottom plates, 3-5-2- ladders boss, 3-5-3- circular arcs boss, 3-5-4- drips, 3-6- sealing rings, 3-7- sealing strips, 3- 8- access panels buckle, 3-8-1- press strips, 3-8-2- bendings grab, 3-9- gaps, 3-10- indoor maintenances hole, facing in 3-11- Plate, 3-12- frames material, 3-13- exterior trims panel, 3-14- underframes material, 3-15- centers material, 3-16- upper ledges material, 4- guide rails, 4-1- Blend stop, 4-2- roller shutters seeker, 5- sliding connectors, 5-1- contiguous blocks, 5-1-1- grabs, 5-1-2- convex shoulders, 5-2- screws, 6- Window frame, 6-1-upper side frame.

Embodiment

The present invention is further illustrated with reference to the accompanying drawings and examples.

As shown in Figure 1, Figure 2 and Figure 3, a kind of external roller blind system that can be integrated with erection of doors and windows and be easy to maintenance, Including window frame 6.Upper side frame 6-1, the bottom plate 3-5-1 of curtain box 3 groove of the sliding connector 5 respectively with the top of window frame 6 are inserted Installation is connect, and is fastenedly connected and is integrated by screw.Provided with the roller shutter 1 in drive device 2 in the curtain box 3.It is described Drive device 2-7 front ends are fixed by terminal pad 2-2 and curtain box 3 left side end seat 3-1 using bolt, and tail end passes through afterbody socket The rolling bearing 2-4 installed in 2-3 is supported on right side end seat 3-1 axis 3-1-5, is supported drive shaft 2-1 two ends, And drive shaft 2-1 is driven and with spline and the tail of drive shaft 2-1 nested encryptions by the flower keyboard 2-8 of drive device 2-7 tail ends Portion socket 2-3 is rotated, so as to drive the roller shutter 1 on drive shaft 2-1 to rotate, roller shutter 1 through roller shutter seeker 4-2 import into Go out after the 3-9 of gap and to be lifted along the guide rail 6.

As shown in figure 4, the both sides of window frame 6 have been respectively mounted a guide rail 4, the guide rail 4 pushes against institute by blend stop 4-1 Window frame 6 is stated, and is fixed with mode connects for screw；The upper end of guide rail 4 is connected by screw with the following of the end seat 3-1.

As shown in Figure 5 and Figure 6, curtain box 3 is main by end seat 3-1, top plate 3-2, outside plate 3-3, bottom plate 3-4, interior access panel 3- 5th, sealing ring 3-6, sealing strip 3-7, access panel buckle 3-8 etc. are constituted, and wherein top plate 3-2 outside and outside plate 3-3 top leads to Groove 3-2-1 and convex wedge 3-3-1 is crossed to be mutually inserted；Left and right symmetrically arranged end seat 3-1 passes through screw and top plate 3-2, outside plate 3- 3rd, bottom plate 3-4 is connected as curtain box 3.The end seat 3-1 is left and right to be symmetrical arranged, and passes through screw and the top plate 3-2, outer Plate 3-3 is connected with bottom plate 3-4 end.The gap 3-9 passed in and out for roller shutter 1 is left between outside plate 3-3 and bottom plate 3-4.

As shown in fig. 7, the top plate 3-2, bottom plate 3-4, outside plate 3-3 and interior access panel 3-5 inner surface are cylinder Face, from bottom plate 3-4 inner surfaces, the curvature segmentation on each plate face of cylinder is equivalent to be increased, and is smoothly connected between adjacent each cylinder, is made institute The surface of internal cavity and roller shutter 1 for stating curtain box 3 wind gap convergence between cylinder formed, the approximate Archimedes spiral of bus Uniformly, and curtain box 3 is made to be maximum to the capacity of roller shutter 1.The top plate, bottom plate, outside plate, interior access panel and two end seats are by height Thermal resistance material is made, and on section bar section be provided with it is multiple can increase the cavity of thermal resistance, realize excellent energy-saving effect.

It is corresponding respectively on the interior access panel 3-5, outside plate 3-3 and bottom plate 3-4 as shown in Fig. 6, Fig. 8, Fig. 9 and Figure 10 Provided with inner veneer 3-11, exterior trim panel 3-13 and center material 3-15, and multiple necks, make the inner veneer, exterior finish The grab hook that plate and center material can be set by its section upper prong position is fixed in corresponding neck.It is described Indoor maintenance hole 3-10 peripheries are provided with and assemble the frame formed by upper ledge material 3-16, underframe material 3-14 and two frame material 3-12 Frame.The section of upper ledge material 3-16 and frame the material 3-12 is U-shaped, and the section of the underframe material 3-14 is L-shaped.The maintenance Board button 3-8 is arranged in groove by design spacing, and its inner press strip 3-8-1 is placed in below sealing ring 3-6, its outer end Bending grab 3-8-2 hooks live in interior access panel 3-5 and fixed.When overhauling roller shutter 1, indoors using in specific purpose tool insertion Gap and pushing tow bending grab 3-8-2, deform it and leave interior access panel 3-5 between decoration panel 3-11 and upper ledge material 3-16, Interior access panel 3-5 can be removed, exposes indoor maintenance hole 3-10, roller shutter 1 is checked or repaired indoors.

As shown in figure 11, end seat 3-1 is main by side coaming 3-1-1, panel 3-1-2, Circular Plate 3-1-3, round bottom plate 3-1-4 Composition, its structure is upper and lower symmetrical, identical end seat 3-1 left and right can be symmetrically installed application by being inverted, to save mould Tool, reduction production cost.The centrally disposed axis 3-1-5 for being used to install drive device of the round bottom plate 3-1-4, and in inner side Face longitudinal direction is diametrically provided with two elongated slot 3-1-6 for being symmetrical with the center of circle.Elongated slot 3-1-6 is used for the company for installing drive device 2-7 Meet disk 2-2.

As shown in figure 12, twice vertical rib 3-1-7 has been symmetrical arranged on lateral surface corresponding with the elongated slot 3-1-6, Screw to install terminal pad 2-2, is also provided with left and right two groups of intersection diagonal ribs 3-1-8 to reinforcing soleplate, every group of intersection Diagonal rib 3-1-8 is three roads, to reinforce round bottom plate 3-1-4.Intensity requirement is pressed between Circular Plate 3-1-3 and side coaming 3-1-1 It is each that 2~3 road ribs 3-1-9, the intensity to increase side coaming 3-1-1 are set.

Such as Figure 13, interior access panel 3-5 is provided with ladder boss 3-5-2, circular arc boss 3-5-3 and bottom plate 3-5-1, and makes bottom plate 3-5-1 inner surfaces are pushed against and compressed in top plate 3-2 inner faces, bottom plate 3-4 inner faces, end seat 3-1 inner side edge grooves Sealing ring 3-6, forms primary seal band.Interior access panel 3-5 and the groove of bottom plate 3-5-1 junctions are interior provided with sealing strip 3-7, and with Interior access panel 3-5 interior side steps boss 3-5-2 pushes against sealing strip 3-7, forms time band；As shown in figure 8, the interior inspection Total length on the inside of plate 3-5 is repaiied there is provided drip 3-5-4, makes the rainwater that roller shutter 1 is carried along the trickling of the inwall of curtain box 3 and along drip 3- Dripped under 5-4, it is to avoid it penetrates into indoor through the gap between bottom plate 3-4 and interior access panel 3-5, can increase the close of the indoor of curtain box 3 Sealing property.By above-mentioned measure, the air-tightness of product, watertightness is set to reach requirement.

As shown in Figure 11, Figure 12, Figure 14 and Figure 15, end seat 3-1 is upper and lower between Circular Plate 3-1-3 and side coaming 3-1-1 Symmetrical respectively set is provided with two square jack 3-1-15, roller shutter seeker 4-1 on a groove 3-1-13, groove inner wall 3-1-14 After the embedded groove, the square jack 3-1-15 that the pin 4-1-1 set by its back side is inserted on groove inner wall 3-1-14, pin The elastic fastener 4-1-2 sides of the catching on jack 3-1-14 of end outward flange fastening.Center material 3-15 outer end is by roller shutter seeker 4-2 top pressures are fixed.Meanwhile, end seat 3-1 side coamings 3-1-1 is provided with square hole 3-1-11, and Circular Plate 3-1-3 is provided with Multifunctional perforated 3-1-12, the round bottom plate 3-1-4 are provided with binding post 2-6, the power line 2-5 of the drive device 2 is worn successively Cross and be connected to after the square hole 3-1-11 and Multifunctional perforated 3-1-12 on the binding post 2-6；Or by manual control Control steel wire rope, which is sequentially passed through, realizes control manually after the square hole 3-1-11 and Multifunctional perforated 3-1-12.

Such as Figure 16, the sliding connector 5 includes contiguous block 5-1, screw 5-2.When curtain box 3 being installed on the window frame 6, It is first in the neck of the bottom plate 3-4 and sliding by the contiguous block 5-1 is entered by the symmetrically arranged grab 5-1-1 grafting in its both sides Move on design attitude, card will be propped up at the top of the grab of the convex shoulder 5-1-2 top pressure upper ledge material 6-1 on the right side of it, the arc surface in left side Chimoto facade, then be interconnected and fixed upper ledge material 6-1, contiguous block 5-1, the bottom plate 3-4 of window frame 6 using screw 5-2, make curtain Box 3 is installed with window 6 and is integrated.

Part that the present invention does not relate to is same as the prior art or can be realized using prior art.

Claims (10)

1. a kind of external roller blind system that can be integrated with erection of doors and windows and be easy to maintenance, including curtain box and two guide rails, its It is characterized in that the curtain box is rectangular box, including top plate, bottom plate, outside plate, interior access panel and two end seats；The outside of the top plate It is mutually inserted with the top of outside plate by wedge groove with convex wedge；Described two end seats are symmetrical set, and with the top plate, outside plate Mode connects for screw is used with the end of bottom plate；The gap passed through for roller shutter is left between the outside plate and bottom plate；The interior access panel Removably it is inlaid on the indoor maintenance hole surrounded by top plate, bottom plate and two end seats by the boss on the inside of it；It is described Curtain box is arranged on the top of window frame, and by multiple sliding connectors with being interfixed after the mutually embedding connection of the window frame with screw；Institute The both sides that two guide rails are symmetrically mounted at window frame are stated, upper end is connected with the curtain box；It is provided with the curtain box wound on driving Roller shutter on device；The roller shutter lower end can pass through to slide along the guide rail behind the gap and lift.

2. the external roller blind system according to claim 1 that can be integrated with erection of doors and windows and be easy to maintenance, its feature It is that the top plate, bottom plate, outside plate, interior access panel and two end seats are crushed to by high thermal resistance material, and in material section Multiple cavitys are set, to reduce heat bridge and to increase thermal resistance, energy-saving effect are improved.

3. the external roller blind system according to claim 1 that can be integrated with erection of doors and windows and be easy to maintenance, its feature The inner surface for being the top plate, bottom plate, outside plate and interior access panel is the face of cylinder, and from plate inner surface, the cylinder of each plate The curvature segmentation in face is equivalent to be increased and is smoothly connected, and it is near that the surface of internal cavity and roller shutter for making the curtain box wind formed, bus Like Archimedes spiral cylinder between gap convergence it is uniform, and make the roller shutter capacity of curtain box be maximum.

4. the external roller blind system according to claim 1 that can be integrated with erection of doors and windows and be easy to maintenance, its feature It is that indoor maintenance hole periphery is provided with the framework surrounded by upper ledge material, underframe material and two frame material；The upper ledge material and The section of frame material is U-shaped, and the section of the underframe material is L-shaped；Top plate, bottom plate and end seat at the indoor maintenance hole On be respectively equipped with neck, make the upper ledge material, underframe material and frame material respectively by its section upper prong position set grab Hook is fixed in corresponding neck.

5. the external roller blind system according to claim 1 that can be integrated with erection of doors and windows and be easy to maintenance, its feature It is that the end seat includes side coaming, panel, Circular Plate and round bottom plate, its structure is symmetrical above and below；The center of the round bottom plate is set There is the axis for installing drive device, the longitudinal direction of its medial surface is diametrically provided with two elongated slots for being symmetrical with the center of circle, its outside Face is provided with twice vertical rib and two groups of intersection diagonal ribs；The twice vertical rib is symmetrical to be arranged at the elongated slot both sides, To mounting screw；Two groups of diagonal ribs are symmetrical set, per the roads of Zu Wei tri-, to reinforcing soleplate；The Circular Plate with it is each To setting multiple tracks ribs between side coaming respectively by intensity requirement.

6. the external roller blind system according to claim 1 that can be integrated with erection of doors and windows and be easy to maintenance, its feature It is that the outer surface of the interior access panel, outside plate and bottom plate is respectively equipped with inner veneer, exterior trim panel and center material, and multiple cards Groove, enables the grab hook that the inner veneer, exterior trim panel and center material are set by its section upper prong position right Fixed in the neck answered.

7. the external roller blind system according to claim 1 that can be integrated with erection of doors and windows and be easy to maintenance, its feature It is that the interior access panel is provided with ladder boss and circular arc boss and bottom plate, and pushes against and compress installed in top plate with plate inner surface Inner face, the sealing ring in the friendship circle groove of bottom plate and end seat inner side edge and form primary seal band, realize air-tightness, watertightness； The interior access panel pushes against the interior side steps boss of interior access panel with being provided with sealing strip in the groove of the back plate connections The sealing strip forms time band；Total length is provided with drip on the inside of the interior access panel；By design in described friendship circle groove Spacing installation and repairing board button, its inner press strip is placed in below sealing ring, the bending grab hook of outer end lives interior access panel Upper side edge is fixed.

8. the external roller blind system according to claim 5 that can be integrated with erection of doors and windows and be easy to maintenance, its feature It is that the end seat side coaming is provided with square hole, the Circular Plate is provided with Multifunctional perforated, and the round bottom plate is provided with binding post, Enable the power line of the drive device sequentially pass through be connected to after the square hole and Multifunctional perforated on the binding post and Powered；Or manual control steel wire rope is sequentially passed through into realization control manually after the square hole and Multifunctional perforated.

9. the external roller blind system according to claim 5 that can be integrated with erection of doors and windows and be easy to maintenance, its feature It is the end seat one groove of setting respectively symmetrical above and below between Circular Plate and side coaming, the inwall of the groove is provided with two Individual side's jack, can make roller shutter seeker insert side's jack and the embedded groove by the pin that its back side is set；Institute State pin end and be provided with elastic fastener, the outward flange of side's jack can be caught on and connection is fastened；Bottom on the inside of the end seat Portion, which is closed on, is provided with roller shutter seeker at the gap.

10. the external roller blind system according to claim 1 that can be integrated with erection of doors and windows and be easy to maintenance, its feature It is that the sliding connector includes contiguous block, screw, the contiguous block is plugged on the bottom by the symmetrically arranged grab in both sides In the neck of plate, the grab of the convex shoulder top pressure outer window frame on the right side of it, the arc surface in left side props up grab end elevation, and uses spiral shell Rim charge, contiguous block, curtain box on window frame are interconnected and fixed by nail.