CN112282623A

CN112282623A - Electric fabric roller shutter for external sunshade and mounting method thereof

Info

Publication number: CN112282623A
Application number: CN202011248770.XA
Authority: CN
Inventors: 梁世格; 吴昆�; 陈显市
Original assignee: Nanjing Jinxingyu Energy Saving Technology Co ltd
Current assignee: Nanjing Jinxingyu Energy Saving Technology Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-01-29

Abstract

The invention relates to the technical field of building external sunshade, in particular to an electric fabric roller shutter for external sunshade and an installation method thereof. The device has a housing fixed on the wall, and a rolling curtain slot for the fabric rolling curtain to pass through is arranged at the tail end of the housing. The head end of the fabric roller shutter is inserted into a driving shaft of the driving component through an upper buckle strip. The tail end of the fabric roller shutter is clamped in the lower buckling strip groove of the bottom beam through the lower buckling strip. The side edge of the fabric roller shutter is provided with a roller shutter side bulge. The surfaces of the left guide rail and the right guide rail which are opposite are provided with guide grooves. The guide groove is connected with a buckling groove in a clamping manner, and a sliding groove is connected in the buckling groove in an inserting manner. The rolling curtain is inserted into the track of the sliding groove in a convex way. An elastic component is arranged between the tensioning end face of the sliding chute and the buckling groove. The installation method is divided into a pre-installation part and a field installation part according to the structural characteristics of the product, so that the installation procedure is simplified, and the efficiency is improved. The invention improves the structure, improves the wind resistance of the fabric roller shutter, and is more suitable for the external sun-shading scene of high-rise buildings.

Description

Electric fabric roller shutter for external sunshade and mounting method thereof

Technical Field

The invention relates to the technical field of building external sunshade, in particular to an electric fabric roller shutter for external sunshade and an installation method thereof.

Background

At present, the building external sunshade is widely applied as an effective building energy-saving measure. According to the development experience and the current situation of the European national exterior sunshade industry, the residential building mainly adopts an integrated product which integrates and assembles the exterior sunshade roller shutter and the building exterior window, and has the advantages of compact structure, coordinated action, beautiful appearance and the like. Sunshade is defined as: the upper part, the front part or two sides of the window of the outer wall are architectural measures for shielding direct sunlight to avoid generating glare and preventing indoor overheating in summer. The outer sunshade is a component complex closely combined with the outer periphery of the building, and is positioned outside the building to prevent the building from being subjected to excessive solar radiation.

The aluminum alloy sunshade roller shutter door and window is one of the more commonly used external sunshade products, has the advantages of firmness, durability, heat insulation, corrosion resistance and the like, and has various manual and electric driving modes. The energy-saving and comfort level of the building is greatly improved when the building is used in the building. For example, chinese patent document CN102733749A discloses an external sunshade metal rolling shutter with reversible shutter sheet for buildings. The device includes a tubular motor, a front housing and a rear housing. The lifting belt is responsible for transmitting the power of the transmission pipe to the curtain sheet. The curtain pieces which have the sun-shading function and can be rolled on the transmission pipe are arranged on the two ends of the upper curtain piece, the transition curtain piece and the turnover curtain piece, the curtain piece side covers are symmetrical and identical in structure, the lifting chain plate and the turnover chain plate connect the upper curtain piece, the transition curtain piece and the turnover curtain piece into a whole through the curtain piece side covers, the curtain piece can be stretched into a straight line and can be wound on the transmission pipe in a curling mode, and meanwhile, the turnover curtain piece can be turned into a horizontal mode so that light rays can enter the chamber through gaps of the turnover curtain pieces. The device keeps the advantages of excellent shading effect, good wind resistance and obvious sound insulation effect of the external shading metal roller shutter, can turn over the shutter piece while unfolding the shading, and can realize the functions of lighting, ventilation, vision field keeping and the like.

However, the common aluminum alloy roller blinds are mostly suitable for the external sun shading of low-rise buildings. When the wind-resistant structure is applied to high-rise buildings, the whole structure of the wind-resistant structure needs to be further designed in a wind-resistant mode. Therefore, on one hand, the design and manufacturing cost of the product is improved, and on the other hand, great difficulty is brought to field installation and construction.

Compared with an aluminum alloy sunshade roller shutter, the curtain fabric sunshade product is simpler in structure, higher in safety performance and wider in application range. The curtain cloth type sun-shading products comprise a roll type sun-shading curtain, a folding arm type outer sun-shading curtain and a vertical arm type outer sun-shading curtain. The roll-type sun-shading curtain is mostly arranged indoors, and the performance of blocking radiation from entering the interior of a building is weak. Meanwhile, the curtain cloth is adsorbed on the window due to the pressure difference between the inside and the outside of the window, and the indoor ventilation is blocked. Chinese patent document CN111140157A discloses a door and window with fabric sunshade. Wherein, the wall body corresponds the side of going up of door and window entrance to a cave and sets up the mounting groove, and the sunshade screen box is fixed to be set up in the mounting groove, and the sunshade screen box is with wall body lateral surface parallel and level. The device installs fabric roll-up window shade in the outer wall of building for the planarization of building facade is better. However, the device lacks the design of wind resistance of the roller shutter and is difficult to meet the requirement of external sunshade of high-rise buildings.

The ventilation performance of the folding arm type external sunshade roller shutter is superior to that of a roller shutter, but when the folding arm type external sunshade roller shutter is used, the folding arm needs to extend towards the outer side of a wall body, and the attractiveness of the whole external wall surface of a building is affected. The sun-shading angle of the vertical arm type external sun-shading curtain is difficult to control, and meanwhile, the wind resistance is poor, so that the vertical arm type external sun-shading curtain is difficult to be suitable for external sun-shading of high-rise buildings.

To sum up, in the technical field of external sunshade of buildings, how to design an external sunshade product with a more compact structure and better wind resistance performance reduces the energy consumption of the buildings passively, improves the energy-saving and environment-friendly performance of the buildings, and is convenient for construction and installation on various buildings, so that the technical problem to be solved by technical personnel in the field is urgently solved.

Disclosure of Invention

The invention aims to provide an external sun-shading device which is more compact in structure, better in wind resistance and convenient to construct and install, for a lighting wall surface of a high-rise building, so as to passively reduce the energy consumption of the building and improve the energy-saving and environment-friendly performance of the building.

In order to achieve the purpose, the invention adopts the following scheme: the electric fabric roller shutter for the external sunshade comprises a housing, a guide rail, a fabric roller shutter, a bottom beam and a driving component arranged in the housing;

the housing is fixedly arranged on a wall, and the tail end of the housing is provided with a roller shutter groove for a fabric roller shutter to pass through;

the driving assembly comprises a driving shaft and a motor for providing power for the fabric roller shutter to rotate and wind, the motor is fixedly arranged on the left end seat of the housing, an output shaft of the motor is connected with a driving end of the driving shaft, and a driven end of the driving shaft is connected with the right end seat of the housing through a bearing;

the head end of the fabric roller shutter is provided with an upper buckling strip, the driving shaft is provided with an upper buckling strip groove, the upper buckling strip is inserted into the upper buckling strip groove, the tail end of the fabric roller shutter is provided with a lower buckling strip, the bottom beam is provided with a lower buckling strip groove, the lower buckling strip is clamped in the lower buckling strip groove, and the side edge of the fabric roller shutter is provided with a roller shutter side protrusion;

the guide rail comprises a left guide rail and a right guide rail, the side face of the left guide rail and the side face of the right guide rail are fixedly mounted on the wall, guide grooves are formed in the faces, opposite to the right guide rail, of the left guide rail, buckling grooves are connected in the guide grooves in a clamping mode, sliding grooves are connected in the buckling grooves in an inserting mode, each sliding groove is provided with a rail and a tensioning end face, the rolling curtain side is inserted into the rails in a protruding mode, and an elastic component for providing horizontal tension for the fabric rolling curtain is arranged between each tensioning end face and each buckling groove.

Preferably, the tail end of the guide rail is inserted with a guide rail back cover, the guide rail back cover is locked with the side face of the guide rail through a first fastening screw, so that accumulated water formed on the windowsill table top is prevented from corroding the inside of the guide rail, and the waterproof performance of the product is further improved.

Preferably, the left guide rail comprises a guide rail fixing seat and a guide rail outer cover, the guide rail fixing seat is fixedly installed on the wall, the guide rail outer cover is fixedly installed on the guide rail fixing seat through a second fastening screw, the guide rail fixing seat and the guide rail outer cover enclose a guide groove, and the second fastening screw is located at the bottom of the guide groove. So set up, all can avoid appearing mounting screw on the visual outward appearance face of guide rail, mounting screw all hides in the inside of guide rail, has further promoted the pleasing to the eye degree of product.

Preferably, the driving assembly further comprises a motor shaft head, a transfer sleeve and a tail plug, the driving shaft is in a circular tube shape, an output shaft of the motor extends into the driving shaft, the output shaft is connected with the inner wall of the driving shaft through the transfer sleeve, the motor shaft head is inserted into the driving end of the driving shaft, the tail plug is inserted into the driven end of the driving shaft, and the motor shaft head and the tail plug respectively form sealing for the driving end and the driven end of the circular tube-shaped driving shaft. So set up, alleviateed the dead weight of drive shaft, be favorable to reducing the energy consumption of motor, reduce the noise that the motor during operation produced.

Preferably, the cavity for accommodating the balancing weight is formed in the bottom beam, the lower buckling strip groove is located on the end face of the head end of the bottom beam, bottom beam plugs are arranged on two sides of the bottom beam, and sealing strips are inserted into the tail end of the bottom beam. The counter weight is additionally arranged in the cavity of the bottom beam, so that the tension of the fabric roller shutter in the horizontal direction perpendicular to the horizontal direction is increased, the flatness of the fabric roller shutter in the retracting process is further improved on the one hand, and the wind-proof effect of the fabric roller shutter is further improved on the other hand.

Preferably, a zipper tape is attached to a side edge of the fabric roll blind, the zipper tape having a string braid and a row of coupling members fixed to edges of the string braid, the coupling members forming symmetrical protrusions at both sides of the string braid, the string braid being coupled to the side edge of the fabric roll blind. By the arrangement, the processing procedures of the fabric roller shutter are greatly reduced, the manufacturing cost is reduced, and the production efficiency is improved.

Preferably, the elastic component is a wire spring, and the structure is simple, so that the maintenance and the repair are convenient, and meanwhile, the installation by workers is convenient.

The invention also provides an installation method of the electric fabric roller shutter for external sunshade, which comprises the following steps:

step one, determining the type of an electric fabric roller shutter for external shading according to the size of a construction reserved window hole;

step two, the driving component is pre-installed in the housing, and an upper buckling strip at the head end of the fabric roller shutter is inserted in an upper buckling strip groove of the driving shaft;

leveling and marking in the window opening, and positioning the housing;

installing a housing and a guide rail on the wall of the window opening, inserting a rolling curtain side protrusion of the fabric rolling curtain into the track from the head end of the guide rail, and installing a lower buckling strip at the tail end of the fabric rolling curtain and clamping the lower buckling strip with the bottom beam;

and step five, debugging the forward rotation and the reverse rotation of the motor to ensure that the fabric roller shutter smoothly slides in the track.

Has the advantages that: compared with the existing external sunshade product, the electric fabric roller shutter for external sunshade utilizes the structural design of the buckling groove and the sliding groove in the guide rail, and the elastic component is additionally arranged between the buckling groove and the sliding groove, so that the tension of the fabric roller shutter in the horizontal direction is improved, the tension of the fabric roller shutter in the direction vertical to the horizontal direction is improved by utilizing the bottom beam connected to the tail end of the fabric roller shutter, on one hand, the appearance surface of the fabric roller shutter is kept flat all the time in the unwinding process of winding, and on the other hand, the wind resistance of the fabric roller shutter is enhanced by the tension in two directions; the fabric roller shutter is used as a sunshade, so that the ventilation effect is better, and the fabric roller shutter has excellent vision field maintaining performance; because the fabric roller shutter is lighter and thinner, the volume and the structure of the housing are more compact, the power of the motor can be selected to be smaller, the energy consumption of the building is further reduced, and the energy-saving and environment-friendly performance of the building is improved.

Drawings

FIG. 1 is a front view of an electric fabric roller blind for external shading in an embodiment of the present invention;

FIG. 2 is an assembled schematic view of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 4 is a cross-sectional view taken at B-B of FIG. 1;

fig. 5 is a cross-sectional view at C-C in fig. 1.

Reference numerals: the fabric roller shutter comprises a housing 1, a left guide rail 2, a right guide rail 3, a bottom beam 4, a sealing strip 5, a fabric roller shutter 6, a driving assembly 7, a lower buckling strip 8, a bottom beam plug 9, an upper housing 11, a lower housing 12, a left end seat 13, a right end seat 14, a guide rail fixing seat 21, a buckling groove 22, a sliding groove 23, a steel wire spring 24, a guide rail outer cover 25, a guide rail sealing bottom 26, a first fastening screw 27, a second fastening screw 28, a roller shutter side protrusion 61, a motor 71, a motor shaft head 72, an adapter sleeve 73, a tail insert 74, a driving shaft 75 and an upper buckling strip 76.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

The electric fabric roller blind for external sunshade as shown in fig. 1-5 is used for passively reducing building energy consumption and improving energy-saving and environment-friendly performance of buildings. On the basis of the existing sunshade product, the electric fabric roller shutter utilizes the structural design of the buckling groove and the sliding groove in the guide rail, and the elastic part is additionally arranged between the buckling groove and the sliding groove, so that the wind resistance of the fabric roller shutter is improved, and the electric fabric roller shutter is more suitable for the external sunshade scene of a high-rise building. Meanwhile, through the improvement of the structure, the electric fabric roller shutter is more convenient to install, low in later maintenance cost and even free of maintenance.

As shown in fig. 1 to 5, an electromotive fabric roller blind for exterior shading comprises a housing 1, a guide rail, a fabric roller blind 6, a sill 4, and a driving assembly 7 disposed inside the housing 1. The housing 1 is fixedly mounted on a wall. The tail end of the housing 1 is provided with a roller blind slot for the fabric roller blind 6 to pass through. One end of the fabric roller shutter 6 is connected with the driving component 7, the other end extends out of the shutter groove, and the fabric roller shutter 6 hangs down under the action of gravity.

As shown in fig. 2, the housing 1 includes an upper housing 11 and a lower housing 12. The upper housing 11 is used for being fixedly connected with a wall body of the reserved window opening. The left end seat 13 and the right end seat 14 are respectively and fixedly installed on two sides of the upper housing 11. Two sides of the lower housing 12 are respectively fixedly connected with the left end seat 13 and the right end seat 14, and form a cavity with a roller blind groove together with the upper housing 11. The drive assembly 7 is mounted within the cavity. With the arrangement, the lower housing 12 can be used as an access hole of the housing 1, so that the housing 1 can be conveniently opened, and the drive component 7 in the housing can be conveniently overhauled. Wherein, the cross section of the lower casing 12 can be selected to be L-shaped. Preferably, the lower shell 12 is made of a bent sheet metal.

The drive assembly 7 includes a drive shaft 75 and a motor 71 for powering the rotational winding of the fabric roller shade 6. The motor 71 is fixedly mounted on the left end seat 13 of the housing 1. The output shaft of the motor 71 is coupled to the driving end of the driving shaft 75. The driven end of the drive shaft 75 is coupled to the right end mount 14 by a bearing. The motor 71 can be selected according to the size of the fabric roller shutter 6, so as to determine the power of the motor. The motor 71 may be an ac motor or a dc motor.

The head end of the fabric roller shutter 6 is provided with an upper buckle strip 76. The drive shaft 75 is provided with an upper buckle groove. The upper buckle strip 76 is inserted in the upper buckle strip groove. The tail end of the fabric roller shutter 6 is provided with a lower buckle strip 8. The bottom beam 4 is provided with a lower buckling strip groove. The lower buckle strip 8 is clamped in the lower buckle strip groove. The side edge of the fabric rolling screen 6 is provided with rolling screen side bulges 61.

Four side edges of the head end, the tail end, the left side and the right side of the fabric roller shutter 6 are respectively connected with the driving shaft 75, the bottom beam 4, the left guide rail 2 and the right guide rail 3. Wherein, the head end of the fabric roller shutter 6 is clamped by the clamping part of the upper buckle strip 76, and the fabric roller shutter 6 is wound along the outer contour of the upper buckle strip 76 and is inserted into the upper buckle strip groove of the driving shaft 75. The tail end of the fabric roller shutter 6 is clamped by the clamping part of the lower buckle strip 8, and the fabric roller shutter 6 is wound along the outer contour of the lower buckle strip 8 and is clamped in the lower buckle strip groove of the bottom beam 4. During assembly, the installation of the bottom beam 4 and the tail end of the fabric roller shutter 6 needs to be carried out during the field installation and construction of the electric fabric roller shutter.

The guide rail includes left guide rail 2 and right guide rail 3, and the side of left guide rail 2 and the equal fixed mounting in side of right guide rail 3 are on the wall. The surfaces of the left guide rail 2 opposite to the right guide rail 3 are provided with guide grooves. The guide groove is clamped with a fastening groove 22. A slide groove 23 is inserted into the catch groove 22. The sliding groove 23 has a track in which the roller blind side projection 61 is inserted and a tension end face between which an elastic member for providing a horizontal tension to the fabric roller blind 6 is provided and the catching groove 22. It should be noted that the insertion of the roller blind side protrusion 61 into the rail is also performed when the electric fabric roller blind is installed on site.

The tail end of the guide rail is inserted with a guide rail back cover 26, the guide rail back cover 26 is locked with the side face of the guide rail through a first fastening screw 27, the corrosion of accumulated water formed on the windowsill table top to the interior of the guide rail is prevented, and the waterproof performance of the product is further improved.

Left guide rail 2 includes guide rail fixing base 21 and guide rail enclosing cover 25, and guide rail fixing base 21 fixed mounting is on the wall, and guide rail enclosing cover 25 passes through second fastening screw 28 fixed mounting on guide rail fixing base 21, and guide rail fixing base 21 and guide rail enclosing cover 25 surround into the guide way, and second fastening screw 28 is located the bottom of guide way. So set up, all can avoid appearing mounting screw on the visual outward appearance face of guide rail, mounting screw all hides in the inside of guide rail, has further promoted the pleasing to the eye degree of product.

Correspondingly, right rail 3 includes guide rail fixing base 21 and guide rail enclosing cover 25, and guide rail fixing base 21 fixed mounting is on the wall, and guide rail enclosing cover 25 passes through second fastening screw 28 fixed mounting on guide rail fixing base 21, and guide rail fixing base 21 and guide rail enclosing cover 25 surround into the guide way, and second fastening screw 28 is located the bottom of guide way.

As shown in fig. 2, the drive assembly 7 further includes a motor shaft head 72, an adapter sleeve 73, and a tail insert 74. The drive shaft 75 is in a circular tube shape, and the output shaft of the motor 71 extends into the interior of the drive shaft 75. The output shaft is coupled to the inner wall of the drive shaft 75 through the adapter sleeve 73. The motor shaft head 72 is inserted into the driving end of the driving shaft 75. The tail insert 74 is inserted at the driven end of the drive shaft 75. The motor stub shaft 72 and the tail insert 74 form a seal with the driving end and the driven end, respectively, of a circular tube-shaped drive shaft 75. Due to the arrangement, the dead weight of the driving shaft 75 is reduced, the energy consumption of the motor 71 is reduced, and the noise generated when the motor 71 works is reduced.

As shown in fig. 5, the inner part of the bottom beam 4 has a cavity for accommodating a weight. The lower buckling strip groove is positioned on the end surface of the head end of the bottom beam 4. And bottom beam plugs 9 are arranged on two sides of the bottom beam 4. The tail end of the bottom beam 4 is spliced with a sealing strip 5. The counter weight is additionally arranged in the cavity of the bottom beam 4, so that the tension of the fabric roller shutter 6 in the vertical and horizontal directions is increased, the flatness of the fabric roller shutter 6 in the retracting and releasing processes is further improved on the one hand, and the windproof effect of the fabric roller shutter 6 is further improved on the other hand.

Wherein, the balancing weight can select the metal piece, preferably the iron plate. The bottom beam plug 9 further improves the sealing performance of the bottom beam 4, and is beneficial to protecting the balancing weight. The sealing strip 5 can be a rubber sealing strip.

As shown in fig. 2, the roller shutter side protrusions 61 on the side edges of the fabric roller shutter 6 may be selected by fastener tapes. The zipper strip has a string braid and an array of links mounted on the edges of the string braid. The connecting pieces form symmetrical bulges on two sides of the wire braid. The thread braid is connected with the side edge of the fabric roller blind. The thread braid and the side edge of the fabric roller shutter 6 can be connected in an edge hot melting mode. For example, the side edge of the fabric roller shutter 6 is overlapped with the thread braid of the fastener tape using a tool, and then the thermal fusion bonding is performed using a hot press apparatus. By the arrangement, the processing procedures of the fabric roller shutter 6 are greatly reduced, the manufacturing cost is reduced, and the production efficiency is improved.

The coupling member is a part of the fastener tape, and has sufficient tensile strength, so that the fabric roller shutter can be well positioned in the track of the slide groove 23. The coupling piece of zipper strip can select for use the nylon material, rolls up the curtain at the coupling piece along with the fabric and when sliding from top to bottom in the track, the coupling piece of nylon material can play the effect of self-lubricating, can effectively avoid the fabric to roll up the phenomenon emergence that the curtain does not block.

Four side edges of the head end, the tail end, the left side and the right side of the fabric roller shutter 6 can be subjected to the same process treatment by using zipper tapes, so that the connecting pieces of the zipper tapes form roller shutter side bulges on the four side edges of the fabric roller shutter respectively. The head-end rolling curtain side protrusion of the fabric rolling curtain 6 can be better clamped by the clamping part of the upper buckle strip 76. In the same way, the rolling curtain side bulge at the tail end of the fabric rolling curtain 6 can be better clamped by the clamping part of the lower buckling strip 8.

The four side edges of the fabric roller shutter 6 are processed by the same process, so that the problem of error in the processing process of the fabric roller shutter is favorably solved, the processing efficiency is improved, and the yield of products is improved.

The elastic component can be selected as a steel wire spring 24, which has simple structure, is convenient for maintenance and service and is convenient for workers to install. The groups of wire springs 24 are uniformly distributed along the extension direction of the guide rail, which is beneficial to applying uniform tension to the fabric roller blind.

The surface of the fabric roller shutter 6 is coated with an ultraviolet-proof coating to improve the radiation-proof performance of the product. Meanwhile, the fabric of the fabric roller shutter 6 can be made of mildew-proof materials, so that the service life of the product is prolonged. In order to further improve the consistency of product quality, the material of the thread braid of the zipper tape is the same as that of the fabric roller shutter 6.

leveling and marking in the window opening, and positioning the housing;

The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be made in the present invention in addition to the above embodiments. It will be understood by those skilled in the art that various changes, substitutions of equivalents, and alterations can be made without departing from the spirit and scope of the invention.

Claims

1. An electric fabric roller shutter for external sunshade is characterized by comprising a housing, a guide rail, a fabric roller shutter, a bottom beam and a driving component arranged in the housing;

the housing is fixedly arranged on a wall, and a rolling curtain groove for a fabric rolling curtain to pass through is formed in the tail end of the housing;

the driving assembly comprises a driving shaft and a motor for providing power for the fabric roller shutter to rotate and wind, the motor is fixedly arranged on a left end seat of the housing, an output shaft of the motor is connected with a driving end of the driving shaft, and a driven end of the driving shaft is connected with a right end seat of the housing through a bearing;

the fabric roller shutter is characterized in that an upper buckling strip is arranged at the head end of the fabric roller shutter, an upper buckling strip groove is formed in the driving shaft, the upper buckling strip is inserted into the upper buckling strip groove, a lower buckling strip is arranged at the tail end of the fabric roller shutter, a lower buckling strip groove is formed in the bottom beam, the lower buckling strip is clamped in the lower buckling strip groove, and a roller shutter side protrusion is arranged on the side edge of the fabric roller shutter;

the guide rail comprises a left guide rail and a right guide rail, the side face of the left guide rail and the side face of the right guide rail are fixedly mounted on the wall, guide grooves are formed in the faces, opposite to the right guide rail, of the left guide rail, buckling grooves are connected in the guide grooves in a clamping mode, sliding grooves are connected in the buckling grooves in an inserting mode, the sliding grooves are provided with rails and tensioning end faces, the rolling curtain side is inserted into the rails in a protruding mode, and elastic components for providing horizontal tension for the fabric rolling curtain are arranged between the tensioning end faces and the buckling grooves.

2. The electric fabric roller shutter for external sunshade according to claim 1, wherein a guide rail back cover is inserted into the tail end of the guide rail, and the guide rail back cover is locked with the side surface of the guide rail through a first fastening screw.

3. The motorized textile roller shade for external sunshade according to claim 1, wherein the left guide rail comprises a guide rail fixing seat and a guide rail outer cover, the guide rail fixing seat is fixedly installed on the wall, the guide rail outer cover is fixedly installed on the guide rail fixing seat through a second fastening screw, the guide rail fixing seat and the guide rail outer cover enclose a guide groove, and the second fastening screw is located at the bottom of the guide groove.

4. The electric fabric roller shutter for external sunshade according to claim 1, wherein the driving assembly further comprises a motor shaft head, an adapter sleeve and a tail plug, the driving shaft is in a circular tube shape, an output shaft of the motor extends into the driving shaft, the output shaft is connected with the inner wall of the driving shaft through the adapter sleeve, the motor shaft head is inserted into the driving end of the driving shaft, and the tail plug is inserted into the driven end of the driving shaft.

5. The electric fabric roller shutter for external sunshade according to claim 1, wherein the bottom beam has a cavity for accommodating the weight block therein, the lower buckle slot is located on the head end face of the bottom beam, bottom beam plugs are provided on both sides of the bottom beam, and a sealing strip is inserted into the tail end of the bottom beam.

6. The motorized textile roller shade for exterior shading according to claim 1, wherein a zipper strip is connected to a side edge of the textile roller shade, the zipper strip having a string braid and a row of coupling members arranged on edges of the string braid, the coupling members forming symmetrical protrusions on both sides of the string braid, the string braid being connected to a side edge of the textile roller shade.

7. The motorized textile roller shade for exterior shading according to claim 1, wherein the elastic member is a wire spring.

8. A method of mounting an electric fabric roller blind for external sunshade according to any of claims 1 to 7, characterized by comprising the steps of:

leveling and marking in the window opening, and positioning the housing;