CN113431234A

CN113431234A - Fireproof curtain wall

Info

Publication number: CN113431234A
Application number: CN202110788963.2A
Authority: CN
Inventors: 毛振办; 张文智; 表雄哲; 张文斌
Original assignee: Zhejiang Guofei Curtain Wall Architectural Decoration Engineering Co ltd
Current assignee: Zhejiang Guofei Curtain Wall Architectural Decoration Engineering Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-09-24
Anticipated expiration: 2041-07-13
Also published as: CN113431234B

Abstract

The utility model relates to a fire prevention curtain wall, it includes a plurality of curtain wall units of group, the curtain wall unit includes interior wall, outer wall and sets up the polished rod between interior wall and outer wall, the one end of polished rod is fixed on the interior wall, the other end passes through the articulated elements and is articulated with the outer wall, the upper and lower both sides of polished rod are provided with the connecting rod respectively, the connecting rod is provided with the elastic component with the outer wall butt towards one side of outer wall, still be provided with between interior wall and the outer wall and be used for connecting tensioning between them. This application has the anti reliable effect of buckling performance height, interior wall and outer wall connection of hanging rod.

Description

Fireproof curtain wall

Technical Field

The application relates to the technical field of curtain walls, in particular to a fireproof curtain wall.

Background

The curtain wall is a building outer protective structure or decorative structure which is composed of a panel and a supporting structure system, can have certain displacement or deformation capacity relative to a main body structure and does not bear the function of the main body structure. The double-layer curtain wall is used as one type of curtain wall and is widely applied to the field of building construction.

The double-layer curtain wall in the related art generally includes an inner wall fixed to a building body, an outer wall fixedly connected to the inner wall through a suspension rod, and a suspension rod fixed between the inner wall and the outer wall.

Because the double-layer curtain wall is usually arranged outdoors after being assembled in place, the suspension rod needs to bear the gravity action of the outer wall and also needs to bear the external wind load. When external wind load exceeds the maximum pressure that the suspension rod and the outer wall connecting end can bear, the suspension rod is easy to bend and damage, so that the connection reliability of the inner wall and the outer wall is influenced, and improvement is needed.

Disclosure of Invention

In order to improve the bending resistance performance of suspension rod, ensure the reliability of being connected of interior wall and outer wall, this application provides a fire prevention curtain.

The application provides a fire prevention curtain adopts following technical scheme:

the utility model provides a fire prevention curtain, includes a plurality of curtain unit of group, the curtain unit includes interior wall, outer wall and sets up the polished rod between interior wall and outer wall, the one end of polished rod is fixed on the interior wall, and the other end passes through the articulated elements and articulates with the outer wall, the upper and lower both sides of polished rod are provided with the connecting rod respectively, one side that the connecting rod is towards the outer wall is provided with the elastic component with the outer wall butt, still be provided with between interior wall and the outer wall and be used for connecting tensioning between them.

By adopting the technical scheme, when wind load acts on the outer wall, on one hand, the wind force can push the outer wall to rotate by taking the hinged end of the outer wall and the suspension rod as an axis, so that part of the wind force is converted into acting force for driving the outer wall to rotate, and the impact effect of the wind force on the connected end of the suspension rod and the outer wall is reduced; on the other hand, the elastic piece can deform when being impacted by wind power and generate elastic force opposite to the wind power direction, and the elastic force not only can play a certain buffering role to ensure that the rotating angle of the outer wall is not too large, but also can drive the outer wall to automatically reset after the wind power disappears.

So set up, increased the wind load that the polished rod can bear, improved the anti bending performance of polished rod for the outer wall is difficult for fracture damage of polished rod when receiving wind-force to strike, and the long service life of curtain need not frequently to change the curtain, energy-concerving and environment-protective to operating personnel. The tensioning piece plays the effect of further connecting interior wall and outer wall, has improved joint strength and stability between them.

Optionally, the elastic element includes an abutting spring fixed between the connecting rod and the outer wall, and a fixed end of the abutting spring and the outer wall is located at an end of the outer wall in the vertical direction.

Through adopting above-mentioned technical scheme, the outer wall receives the wind force effect to do all can, and the butt spring receives the elastic force of outer wall and can produce adaptability deformation to produce the elastic force that the drive outer wall resets, the simple structure of elastic component, processing are convenient. The fixed ends of the abutting springs and the outer wall are located at the upper end or the lower end of the outer wall, and the buffering reset effect is good.

Optionally, the articulated elements include two relative settings at the articulated seat of outer wall towards inner wall one side, wear to establish articulated bolt and the articulated nut of threaded connection on articulated bolt on two articulated seats, all set up the through-hole that supplies articulated bolt to pass on suspension rod and the articulated seat.

Through adopting above-mentioned technical scheme, when connecting suspension rod and outer wall, stretch into between two articulated seats with the tip that the interior wall was kept away from to the suspension rod earlier for through-hole on the suspension rod aligns with the through-hole on the articulated seat, pass the through-hole of suspension rod and articulated seat simultaneously with articulated bolt again and with articulated nut threaded connection, thereby restriction suspension rod shifts out between two articulated seats, and easy and simple to handle during processing, the packaging efficiency of curtain unit is high.

Optionally, the tensioning member includes a rotating shaft fixedly disposed on the inner wall, a first rotating wheel rotatably connected to the top end of the outer wall, a second rotating wheel rotatably connected to the bottom end of the outer wall, and a pulling rope wound around the rotating shaft, and the pulling rope bypasses the first rotating wheel and the second rotating wheel and forms a tight closed loop.

Through adopting above-mentioned technical scheme, the stay cord plays the effect of connecting pivot, first runner and second runner for interior wall and outer wall are not only connected through the suspension rod, have improved the joint strength of interior wall and outer wall. When the outer wall rotates under the action of wind power, the pull rope can generate adaptive displacement along with the outer wall, and the circumference of a triangle formed by the rotating shaft, the first rotating shaft and the second rotating wheel is unchanged, so that the pull rope can be always kept in a tensioning state in the process of moving along with the outer wall, and the connecting effect is good.

In addition, when the suspension rod is damaged due to factors such as exposure to the sun, rain and the like for a long time, the pull rope also plays a role of lifting the outer wall, so that the outer wall is not easy to fall under the action of self gravity to injure pedestrians, and the potential safety hazard is effectively reduced.

Optionally, one side of the inner wall facing the outer wall is provided with a first positioning cylinder located at the top end and a second positioning cylinder located at the bottom end, and piston rods of the first positioning cylinder and the second positioning cylinder are horizontally arranged facing the outer wall.

By adopting the technical scheme, when the piston rod of the first positioning cylinder extends, the top end of the outer wall moves to one side far away from the inner wall under the thrust; when a piston rod of the second positioning cylinder extends, the bottom end of the outer wall can move towards one side far away from the inner wall under the action of thrust. The outer wall can rotate under the drive of first location cylinder and second location cylinder for the orientation of outer wall is variable, has richened the decorative effect of outer wall.

Optionally, the end of the piston rod of the first positioning cylinder and the end of the piston rod of the second positioning cylinder are provided with a butting ball.

Through adopting above-mentioned technical scheme, first location cylinder, second location cylinder during operation are the curved surface with the contact surface of outer wall, help improving outer wall pivoted smooth and easy degree.

Optionally, the end face of the outer wall, which is far away from the inner wall, is provided with a decorative groove, a decorative sheet with decorative patterns on the surface is placed in the decorative groove, the outer wall is hinged with a transparent cover for closing an opening of the decorative groove, and the movable end of the transparent cover is detachably connected with the outer wall through at least one group of fastening components.

Through adopting above-mentioned technical scheme, decorate the piece setting in the outside of curtain, play the effect of decorating. The transparent cover is made of transparent materials, the decorative effect is not affected, meanwhile, the decorative sheet can be effectively protected from being aged and damaged due to exposure to the sun and rain, and the service life of the decorative sheet is prolonged. The expansion end of transparent cover can be dismantled with the outer wall for decorate the piece and can be taken out and tear open the trade, with the decoration demand that satisfies the difference, the practicality is strong.

Optionally, the fastening assembly comprises a flexible sheet arranged at the movable end of the transparent cover, a connecting block fixed on the side wall of the outer wall and a limiting part detachably arranged on the connecting block, a connecting hole for the connecting block to penetrate out is formed in the middle of the flexible sheet, and the limiting part is used for blocking the flexible sheet arranged outside the connecting block to move.

Through adopting above-mentioned technical scheme, decorate the piece and install after decorating the groove, rotate transparent cover to the one side that is close to the outer wall earlier to make transparent cover shelter from the opening of decorating the groove, rotate flexible piece to the one side that is close to the connecting block again, make flexible piece cover establish the outside at the connecting block, the connecting hole is worn out to the connecting block, later with the locating part setting on the connecting block, in order to stop flexible piece shift out the connecting block can. At the moment, the transparent cover is positioned by the flexible sheet and cannot rotate, so that the stability of the transparent cover is improved.

Optionally, be provided with the fixed block that is located connecting block one side on the outer wall, fixed screw has been seted up towards the terminal surface of connecting block to the fixed block, set up the hole of stepping down that aligns with fixed screw on the connecting block, the interval of the hole of stepping down and outer wall is not less than the thickness of flexible piece, the locating part is including wearing to establish the spacing bolt in the hole of stepping down, spacing bolt and fixed screw threaded connection.

Through adopting above-mentioned technical scheme, flexible piece cover is located the connecting block after, passes spacing bolt and steps down hole and fixed screw threaded connection, alright utilize spacing bolt to block flexible cloth and remove to the one side of keeping away from the connecting block, easy operation, location are effectual.

Optionally, a non-toxic intumescent fire retardant coating layer is arranged on one side of the outer wall facing the inner wall.

By adopting the technical scheme, the non-toxic intumescent fire retardant coating is non-toxic and harmless, is energy-saving and environment-friendly, can expand when being heated and form a compact foaming layer, so that the fire behavior when a fire disaster happens is effectively prevented from spreading outwards from the outer wall, and the fire resistance of the curtain wall is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when wind power impacts the outer wall, on one hand, the outer wall can rotate under the action of the wind power to reduce the impact of the wind power on the outer wall and the suspension rod, on the other hand, the elastic piece plays a role in buffering and protecting, the outer wall can be automatically reset, the connection strength of the outer wall and the inner wall is high, and the service life is long;

2. the stay cord forms a tight ring shape between the inner wall and the outer wall, so that the connection stability of the outer wall and the inner wall is improved; the first positioning cylinder and the second positioning cylinder can drive the outer wall to rotate so as to enrich the decorative effect of the outer wall;

3. the decorative sheet improves the decorative effect of the curtain wall, and the transparent cover is located on the outer side of the decorative sheet and plays a role in protecting the decorative sheet.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

FIG. 2 is a schematic structural diagram of a curtain wall unit in the embodiment of the present application.

Fig. 3 is an exploded view of a curtain wall unit in an embodiment of the present application.

FIG. 4 is a schematic cross-sectional view of a curtain wall unit in an embodiment of the present application.

FIG. 5 is a partially exploded view highlighting the fastening assembly of an embodiment of the present application.

Description of reference numerals:

1. a curtain wall unit; 11. an inner wall; 111. installing a bolt; 112. a first positioning cylinder; 113. a second positioning cylinder; 114. abutting the ball; 12. an outer wall; 121. a non-toxic intumescent fire retardant coating layer; 122. a decorative groove; 123. a decorative sheet; 124. a fixed block; 125. fixing screw holes; 13. a suspension rod; 131. a connecting rod; 2. building a wall body; 3. an articulation member; 31. a hinged seat; 32. a hinge bolt; 33. a hinged nut; 34. a through hole; 4. an elastic member; 41. an abutment spring; 5. a tension member; 51. a base; 52. a rotating shaft; 53. a first runner; 54. a second runner; 55. pulling a rope; 6. a transparent cover; 61. folding edges; 7. a fastening assembly; 71. a flexible sheet; 711. connecting holes; 72. connecting blocks; 721. a hole of abdication; 73. a limiting member; 731. and a limiting bolt.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a fireproof curtain wall. Referring to fig. 1 and 2, the fireproof curtain wall includes a plurality of groups of curtain wall units 1 arranged in a matrix, and a gap is formed between any two adjacent curtain wall units 1. The curtain wall unit 1 comprises an inner wall 11, an outer wall 12 and two suspension rods 13 arranged between the inner wall 11 and the outer wall 12, wherein four corners of the inner wall 11 are fixedly arranged on the building wall 2 through a group of mounting bolts 111, the outer wall 12 is positioned on one side of the inner wall 11 far away from the building wall 2, and the two suspension rods 13 are the same in height and are connected to two end portions of the outer wall 12 and the inner wall 11 in the horizontal direction respectively.

Referring to fig. 2 and 3, one end of the suspension rod 13 is fixedly disposed on the inner wall 11, and the other end of the suspension rod 13 is hinged to the outer wall 12 through the hinge 3, where the hinge 3 in this embodiment includes two hinge seats 31 oppositely disposed on the outer wall 12, a hinge bolt 32 synchronously passing through the two hinge seats 31, and a hinge nut 33 screwed on the hinge bolt 32. A gap into which the end of the suspension rod 13 can extend is formed between the two hinge seats 31, through holes 34 are formed in the side wall of the suspension rod 13 and the end faces of the two hinge seats 31, which are close to each other, the aperture of each through hole 34 is slightly larger than the diameter of the rod of the hinge bolt 32, and in other embodiment modes, the hinge element 3 can be arranged in a hinge mode, a hinge mode or other modes. When the curtain wall unit 1 is assembled, the end part of the suspension rod 13 is firstly clamped between the two hinge seats 31 in the same hinge assembly 3, so that the suspension rod 13 is aligned with the through hole 34 on the hinge seat 31, and then the hinge bolt 32 passes through the through hole 34 and is in threaded connection with the hinge nut 33, so that the suspension rod 13 is connected with the outer wall 12.

Referring to fig. 2 and 3, a connecting rod 131 is fixedly disposed on each of upper and lower sides of each suspension rod 13, and the connecting rod 131 is located at an end of the suspension rod 13 away from the inner wall 11. The link 131 is provided with an elastic member 4 on a side facing the outer wall 12, the elastic member 4 in this embodiment includes an abutting spring 41 fixed between the link 131 and the outer wall 12, one end of the abutting spring 41 is fixed on a side of the link 131 facing the outer wall 12, and the other end of the abutting spring 41 is fixed on a side of the outer wall 12 facing the link 131. When the external wind pushes the outer wall 12 to rotate, the abutting spring 41 is subjected to adaptive deformation under the action of the outer wall 12 to generate elastic force, and the elastic force not only plays a role in buffering, but also can drive the outer wall 12 which rotates under the action of the wind to automatically reset.

Referring to fig. 2 and 3, one side of the outer wall 12 of the inner wall 11 is provided with a first positioning cylinder 112 and a second positioning cylinder 113, a cylinder of the first positioning cylinder 112 is fixed at the top end of the inner wall 11, a cylinder of the second positioning cylinder 113 is fixed at the bottom end of the inner wall 11, piston rods of the first positioning cylinder 112 and the second positioning cylinder 113 are both arranged towards the outer wall 12 along the horizontal direction, and the piston rods of the first positioning cylinder 112 and the second positioning cylinder 113 are both fixedly connected with a butting ball 114. When the piston rod of the first positioning cylinder 112 extends, the top end of the outer wall 12 is pushed to move to the side far away from the inner wall 11, so that the outer wall 12 is turned to the lower side; when the piston rod of the second positioning cylinder 113 extends, the bottom end of the outer wall 12 is pushed to move to the side far away from the inner wall 11, so that the outer wall 12 is turned towards the upper side. The inclined direction of the outer wall 12 can be changed, and the decorative effect is various.

Referring to fig. 3 and 4, a tension member 5 is further disposed between the inner wall 11 and the outer wall 12, the tension member 5 includes a base 51 fixedly disposed on a side of the inner wall 11 facing the outer wall 12, a rotating shaft 52 fixed on the base 51, a first rotating wheel 53 rotatably connected to a top end of the outer wall 12, a second rotating wheel 54 rotatably connected to a bottom end of the outer wall 12, and a tension rope 55, the tension rope 55 is wound around the first rotating wheel 53, the second rotating wheel 54 and the rotating shaft 52, and the tension rope 55 forms a triangular closed loop between the inner wall 11 and the outer wall 12. The pull rope 55 not only plays a role in further connecting the inner wall 11 and the outer wall 12, so that the connection strength between the inner wall 11 and the outer wall 12 is improved, but also can pull the outer wall 12 after the suspension rod 13 is broken, so that the outer wall 12 is prevented from injuring pedestrians.

Referring to fig. 4 and 5, the side of the outer wall 12 facing the inner wall 11 is provided with a nontoxic intumescent fire-retardant coating layer 121, the coating layer is formed by coating a single-component self-drying coating composed of ethyl fibers, chlorinated paraffin, fire-retardant pigments, auxiliaries, solvents and the like, and the coating layer can effectively prevent the fire from spreading outwards when a fire breaks out in a building room, so that the fire-retardant performance of the curtain wall is improved.

Referring to fig. 4 and 5, a decorative groove 122 is formed in a side wall of the outer wall 12 away from the inner wall 11, and a decorative sheet 123 is embedded in the decorative groove 122. The side wall of the decorative sheet 123 far away from the inner wall 11 is provided with a decorative pattern, and the decorative pattern plays a role in enriching the decorative effect of the curtain wall. One side of the outer wall 12 away from the inner wall 11 is hinged with a transparent cover 6 for shielding the opening of the decorative groove 122, and the transparent cover 6 in the embodiment is made of an acrylic plate, so that the light transmission is good, and the decorative effect of the decorative sheet 123 cannot be influenced.

Referring to fig. 5, one end of the transparent cover 6 is a hinged end hinged on the wall of the decorative groove 122, and the other end is a movable end capable of rotating relative to the outer wall 12, the movable end of the transparent cover 6 is detachably connected with the outer wall 12 through a plurality of groups of fastening components 7, the number of the fastening components 7 in this embodiment is two, and the two groups of fastening components 7 are distributed along the vertical direction. The movable end of the transparent cover 6 is integrally formed with a folding edge 61 perpendicular to the transparent cover 6, and when the transparent cover 6 covers the opening of the decorative groove 122, the folding edge 61 can be abutted against the side wall of the outer wall 12 far away from the hinged end of the transparent cover 6, so that the contact area between the transparent cover 6 and the outer wall 12 is increased.

Referring to fig. 5, the fastening assembly 7 includes a flexible sheet 71 fixed on the folded edge 61, a connecting block 72 fixed on the side wall of the outer wall 12 facing the inner wall 11, and a limiting member 73 detachably disposed on the connecting block 72, the flexible sheet 71 is made of kevlar fiber material, and has the advantages of high strength, good toughness, high temperature resistance, and the like, and a connecting hole 711 for the connecting block 72 to penetrate through is formed in the middle of the flexible sheet 71. After the transparent cover 6 rotates to abut against the outer wall 12 and shields the opening of the decorative groove 122, the flexible sheet 71 is sleeved outside the connecting block 72 close to the flexible sheet, so that the connecting block 72 penetrates out of the connecting hole 711, the transparent cover 6 can be preliminarily positioned, and the transparent cover 6 is not easy to turn to one side far away from the outer wall 12.

Referring to fig. 5, the fixing blocks 124 with the same number as the limiting members 73 are fixed on one side of the outer wall 12 facing the inner wall 11, and each fixing block 124 is close to the connecting block 72 in each fastening assembly 7. The end face, facing the connecting block 72, of the fixing block 124 is provided with a fixing screw hole 125, the connecting block 72 is provided with a yielding hole 721 aligned with the fixing screw hole 125, and the distance between the yielding hole 721 and the outer wall 12 is greater than the thickness of the flexible sheet 71. The fixing block 124 and the connecting block 72 are disposed between the outer wall 12 and the inner wall 11, so that the connection portion between the movable end of the transparent cover 6 and the outer wall 12 is not exposed easily, and the integral aesthetic property of the curtain wall is improved.

Referring to fig. 5, the limiting member 73 includes a limiting bolt 731 inserted into the yielding hole 721, and the limiting bolt 731 is threadedly connected to the fixing screw hole 125. The limiting bolt 731 is provided with a head part and a rod part which are fixedly connected, wherein the rod part of the limiting bolt 731 is provided with a smooth section and a threaded section, when the limiting bolt 731 passes through the abdicating hole 721 and is in threaded connection with the fixing screw hole 125, and the head part of the limiting bolt 731 is abutted against the fixing block 124, the smooth section is positioned on the outer side of the fixing block 124, and the threaded section is screwed in the fixing block 124. After the flexible cloth is sleeved outside the connecting block 72, the limiting bolt 731 penetrates through the abdicating hole 721 and the fixing screw hole 125 and is in threaded connection, at the moment, the limiting bolt 731 abuts against one side, far away from the outer wall 12, of the flexible cloth, the effect of obstructing the separation of the flexible cloth and the connecting block 72 is achieved, and the stability of the transparent cover 6 is improved.

The implementation principle of the fireproof curtain wall in the embodiment of the application is as follows: the outer wall 12 is hinged but not fixedly connected with the suspension rods 13, when external wind impacts the outer wall 12, the outer wall 12 can rotate under the action of wind power, so that the impact force of the wind power on the connecting ends of the outer wall 12 and the suspension rods 13 is reduced, the suspension rods 13 are not easy to bend and damage, and the service life of the curtain wall unit 1 is prolonged. The abutting spring 41 is arranged between the connecting rod 131 and the outer wall 12, and plays a role in buffering and protecting and driving the outer wall 12 to reset; the arrangement of the pull rope 55 can further connect the inner wall 11 and the outer wall 12, so that the connection strength between the inner wall and the outer wall is improved. The first positioning cylinder 112 and the second positioning cylinder 113 can drive the outer wall 12 to rotate by taking the hinged end of the outer wall and the suspension rod 13 as an axis, so that the inclination direction of the outer wall 12 is changed, and the decoration effect of the curtain wall is enriched.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a fire prevention curtain wall, includes a plurality of curtain wall unit (1), curtain wall unit (1) includes interior wall (11), outer wall (12) and sets up suspension rod (13) between interior wall (11) and outer wall (12), its characterized in that: one end of the suspension rod (13) is fixed on the inner wall (11), the other end of the suspension rod is hinged with the outer wall (12) through a hinge piece (3), connecting rods (131) are respectively arranged on the upper side and the lower side of the suspension rod (13), one side, facing the outer wall (12), of each connecting rod (131) is provided with an elastic piece (4) abutted against the outer wall (12), and a tensioning piece (5) used for connecting the inner wall (11) and the outer wall (12) is further arranged between the inner wall (11) and the outer wall (12).

2. The fire protection curtain wall of claim 1, wherein: the elastic piece (4) comprises an abutting spring (41) fixed between the connecting rod (131) and the outer wall (12), and the fixed end of the abutting spring (41) and the fixed end of the outer wall (12) are located at the end of the outer wall (12) in the vertical direction.

3. The fire protection curtain wall of claim 1, wherein: articulated elements (3) include that two relative settings are at articulated seat (31) of outer wall (12) towards inner wall (11) one side, wear to establish articulated bolt (32) and the articulated nut (33) of threaded connection on articulated bolt (32) on two articulated seats (31), through-hole (34) that supply articulated bolt (32) to pass are all seted up on suspension rod (13) and articulated seat (31).

4. A fire protection curtain wall as claimed in claim 2, wherein: the tensioning piece (5) comprises a rotating shaft (52) fixedly arranged on the inner wall (11), a first rotating wheel (53) rotatably connected to the top end of the outer wall (12), a second rotating wheel (54) rotatably connected to the bottom end of the outer wall (12) and a pulling rope (55) wound outside the rotating shaft (52), wherein the pulling rope (55) bypasses the first rotating wheel (53) and the second rotating wheel (54) and forms a tight closed ring shape.

5. The fire protection curtain wall of claim 1, wherein: one side of the inner wall (11) facing the outer wall (12) is provided with a first positioning cylinder (112) located at the top end and a second positioning cylinder (113) located at the bottom end, and piston rods of the first positioning cylinder (112) and the second positioning cylinder (113) are horizontally arranged facing the outer wall (12).

6. A fire protection curtain wall as claimed in claim 5, wherein: and the end parts of the piston rods of the first positioning cylinder (112) and the second positioning cylinder (113) are provided with abutting balls (114).

7. The fire protection curtain wall of claim 1, wherein: the decorative plate is characterized in that a decorative groove (122) is formed in the end face, far away from the inner wall (11), of the outer wall (12), a decorative sheet (123) with decorative patterns on the surface is placed in the decorative groove (122), a transparent cover (6) used for sealing an opening of the decorative groove (122) is hinged to the outer wall (12), and the movable end of the transparent cover (6) is detachably connected with the outer wall (12) through at least one group of fastening components (7).

8. A fire protection curtain wall as claimed in claim 7, wherein: fastening components (7) are including setting up flexible piece (71) at transparent cover (6) expansion end, fixing connecting block (72) at outer wall (12) lateral wall and can dismantle locating part (73) of setting on connecting block (72), connecting hole (711) that supply connecting block (72) to wear out are seted up at the middle part of flexible piece (71), locating part (73) are used for blockking to establish flexible piece (71) removal outside connecting block (72).

9. The fire protection curtain wall of claim 8, wherein: be provided with fixed block (124) that are located connecting block (72) one side on outer wall (12), fixed screw (125) have been seted up towards the terminal surface of connecting block (72) in fixed block (124), set up hole of stepping down (721) of lining up with fixed screw (125) on connecting block (72), the interval of hole of stepping down (721) and outer wall (12) is not less than the thickness of flexible piece (71), locating part (73) are including wearing to establish spacing bolt (731) in the hole of stepping down (721), spacing bolt (731) and fixed screw (125) threaded connection.

10. The fire protection curtain wall of claim 1, wherein: and a non-toxic expansion type fireproof coating layer (121) is arranged on one side of the outer wall (12) facing the inner wall (11).