CN214550734U - Improved combined double-rail double-curtain roller shutter - Google Patents

Improved combined double-rail double-curtain roller shutter Download PDF

Info

Publication number
CN214550734U
CN214550734U CN202120574876.2U CN202120574876U CN214550734U CN 214550734 U CN214550734 U CN 214550734U CN 202120574876 U CN202120574876 U CN 202120574876U CN 214550734 U CN214550734 U CN 214550734U
Authority
CN
China
Prior art keywords
curtain
fire
double
pressing strip
fireproof
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202120574876.2U
Other languages
Chinese (zh)
Inventor
罗国平
陈锦雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Xionghao Door Industry Co ltd
Original Assignee
Dongguan Xionghao Door Industry Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Xionghao Door Industry Co ltd filed Critical Dongguan Xionghao Door Industry Co ltd
Priority to CN202120574876.2U priority Critical patent/CN214550734U/en
Application granted granted Critical
Publication of CN214550734U publication Critical patent/CN214550734U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Special Wing (AREA)

Abstract

The utility model relates to a curtain is rolled up to improved generation combination formula double track double curtain, it includes that two curtain rolling slats door, joint slidable mounting that adopt a plurality of fire-proof roll curtain to make are at two sets of fire-proof curtain faces between adjacent two fire-proof roll curtains and vertical curtain face layering of installing on the fire-proof curtain face side by side, its characterized in that: the elastic pressing strip is installed at the end part of the curtain surface pressing strip and used for pressing the overlapped part between the fireproof roller shutter and the fireproof curtain surface, and an installation assembly used for fixing the elastic pressing strip is installed at the end part of the curtain surface pressing strip. This application has the characteristics that can reduce the condition of ventilating between the regional and the non-area of catching fire when meetting the conflagration, improves the fire behavior of two curtains book curtain to can reach the effect that improves human security.

Description

Improved combined double-rail double-curtain roller shutter
Technical Field
The application relates to the technical field of fire-proof equipment, in particular to an improved combined double-track double-curtain rolling curtain.
Background
The fire disaster is one of the main disasters which threaten public safety and social development most frequently and generally, and along with the progress of human civilization, the human fire disaster prevention awareness is stronger and stronger, and the fire disaster and the harm of the fire disaster to human beings are reduced as much as possible.
In public areas, double-curtain fireproof rolling doors with good fireproof effect are often used as fireproof equipment, and when a fire disaster occurs, the fireproof rolling doors can be started to effectively block the spread of the fire disaster, so that the loss caused by the fire disaster is reduced.
Chinese patent application number is CN 202020633400.7's a modular double track double curtain rolls up curtain, which comprises a frame, contain the double curtain rolling slats door of the fire prevention roll curtain, contain the movable member of spacing portion and two sets of fire prevention curtain faces, two fire prevention roll curtain sides and spacing portion joint sliding connection, a plurality of curtain face layering are installed to the equidistance on the fire prevention curtain face, a plurality of curtain face layering can overlap through coiling the stay cord, when the conflagration takes place, the double curtain rolling slats door descends, drive driving piece expansion movable member, spacing portion joint is between two adjacent fire prevention roll curtains uniformly, thereby can seal the clearance between the two adjacent double curtain rolling slats door, realize the effect of fire prevention.
In view of the above-mentioned related technologies, the inventor believes that since the fire-proof rolling shutter and the fire-proof curtain face are both made of soft materials, and the side edge of the fire-proof rolling shutter is connected with the limit portion in a clamping and sliding manner, a pressure difference is formed between the fire scene at one side of the double-curtain rolling shutter door and the other side of the double-curtain rolling shutter door, so that airflow is easily generated to pass through a gap between the fire-proof curtain face and the fire-proof rolling shutter, and fire leaping or lifting occurs, which needs to be further improved.
SUMMERY OF THE UTILITY MODEL
In order to reduce the situation of fire leaping caused by airflow generated between the fireproof curtain surface and the fireproof rolling curtain and improve the safety, the application provides an improved combined double-rail double-curtain rolling curtain.
The application provides a two curtain book curtains of improved generation combination formula double track adopts following technical scheme:
the utility model provides a curtain is rolled up to improved generation combination formula double track double curtain, includes that two curtain rolling slats door, joint slidable mounting that adopt a plurality of fire-retardant roll curtains to make are at two sets of fire-retardant curtain faces between adjacent two fire-retardant roll curtains and the vertical curtain face layering of installing side by side on the fire-retardant curtain face, its characterized in that: the elastic pressing strip is installed at the end part of the curtain surface pressing strip and used for pressing the overlapped part between the fireproof roller shutter and the fireproof curtain surface, and an installation assembly used for fixing the elastic pressing strip is installed at the end part of the curtain surface pressing strip.
By adopting the technical scheme, the elastic pressing strip and the mounting assembly are mounted, so that the gap between the fireproof rolling curtain and the fireproof curtain surface can be clamped, the situation that the gap between the fireproof rolling curtain and the fireproof curtain surface is opened by air pressure between a fire area and a non-fire area to cause fire channeling and the situation that the fireproof rolling curtain and the fireproof curtain surface are opened is reduced, the fireproof safety can be improved, and the fire loss is reduced.
Optionally, the mounting assembly comprises a mounting block mounted at the end of the curtain surface pressing strip, the mounting block is far away from one side of the curtain surface pressing strip and is provided with a supporting rod with an extending direction perpendicular to the surface of the mounting block, and one end of the supporting rod is far away from the mounting block and is mounted with the elastic pressing strip.
By adopting the technical scheme, the installation block and the supporting rod are arranged, the preset distance can be arranged between the elastic pressing strip and the curtain surface pressing strip, so that the fireproof rolling curtain is clamped between the elastic pressing strip and the curtain surface pressing strip by the elastic pressing strip, the gap between the fireproof rolling curtain and the fireproof curtain surface is reduced, meanwhile, the fireproof rolling curtain and the fireproof curtain surface can slide relatively, and the fireproof performance of the double-curtain rolling curtain can be improved.
Optionally, the elastic pressing strip is used for pressing one end of the fireproof roller shutter and is provided with a guide sliding plate, and two ends of the guide sliding plate are provided with guide ends.
By adopting the technical scheme, the guide sliding plate and the guide end are installed, when the fireproof rolling curtain and the fireproof rolling curtain face slide relatively, the obstruction of the elastic pressing strip to the fireproof rolling curtain can be reduced, the smoothness of the relative sliding between the elastic pressing strip and the fireproof rolling curtain is improved, so that the elastic pressing strip can tightly clamp the fireproof rolling curtain, the gap between the fireproof rolling curtain and the fireproof rolling curtain face is closer, and the state of sealing and fitting between the fireproof rolling curtain and the fireproof rolling curtain face is broken by reducing the pressure of fire disasters.
Optionally, the bracing piece is kept away from installation piece one end and is installed the regulating plate, the rectangular hole has been seted up on the elastic pressing strip, install the fastener that is used for fixed elastic pressing strip and regulating plate on the regulating plate.
By adopting the technical scheme, the adjusting plate and the fastener are installed and the strip holes are formed, so that the distance between the elastic pressing strips and the installation block can be adjusted, the elastic pressing strips on the two adjacent curtain surface pressing strips are not positioned on the same vertical surface, and the adjacent elastic pressing strips are not easy to interfere after the curtain surface pressing strips are folded, so that the curtain surface pressing strips can be folded.
Optionally, a connecting rod is correspondingly installed on one side of each of the curtain surface pressing strips on the fireproof curtain surface, the connecting rods are correspondingly fixed through fixing pieces, and the corresponding curtain surface pressing strips are fixedly connected through reinforcing rods.
Through adopting above-mentioned technical scheme, installation connecting rod, mounting and anchor strut can improve the intensity between two sets of curtain faces to improve the ability that fire prevention curtain face resisted the fire scene atmospheric pressure, with the condition that reduces fire-proof roller shutter and fire prevention curtain face because of receiving the fire scene wind pressure and taking place to leap fire or being lifted.
Optionally, an elastic member is installed between the two groups of fire-proof curtain surfaces, and the end of the elastic member is located between the two adjacent curtain surface pressing strips of the corresponding group.
By adopting the technical scheme, the elastic piece is installed, so that the two groups of fireproof curtain surfaces can have the trend of being close to each other, when the curtain surface pressing strips are folded, the fireproof curtain surfaces between the curtain surface pressing strips can be closed to the cavity between the two groups of curtain surface pressing strips under the elastic action of the elastic piece, and the situation that the folded curtain surface pressing strips are contained and placed due to the fact that the fireproof curtain surfaces are folded to the outside of the cavity between the two groups of curtain surface pressing strips when the curtain surface pressing strips are folded is reduced.
Optionally, the elastic component is provided with two sets ofly side by side along the extending direction of curtain layering, be fixed with the connecting strip on the fire prevention curtain face, the transversal U nature of personally submitting and both ends of connecting strip pass fire prevention curtain face and two and set up side by side the tip of elastic component is connected.
Through adopting above-mentioned technical scheme, the installation connecting strip can install two sets of elastic components between two sets of fire curtain faces, easy operation, and is with low costs, is favorable to economic benefits.
Optionally, the fixing member includes a bolt inserted between the corresponding connecting rods.
Through adopting above-mentioned technical scheme, the two adjacent connecting rods can be fixed to the construction bolt, reach the effect of consolidating the whole framework of fire curtain face, simultaneously, also be convenient for install and dismantle.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by installing the elastic pressing strips, the installation blocks, the supporting rods, the guiding ends and the adjusting plates, the elastic pressing strips can be installed at the end parts of the curtain surface pressing strips in a staggered mode in the vertical direction, the fireproof rolling curtain is clamped on the fireproof curtain surface, and the relative movement of the fireproof rolling curtain and the fireproof curtain surface is not influenced, so that the situation that fire leaps occur or the fireproof rolling curtain and the fireproof curtain surface are lifted can be reduced, the fireproof performance of the double-curtain rolling curtain is improved, and the safety of people is improved;
2. by installing the connecting rods, the reinforcing rods and the bolts, the overall strength of the two groups of fire-proof curtain surfaces can be improved, so that the fire-proof curtain surface is more difficult to open, and the effect of improving the fire-proof capacity of the double-curtain roller shutter is achieved;
3. through installation elastic component and connecting strip, can reduce folding curtain face layering time fire prevention curtain face and fold outside the cavity and influence the taking in after the curtain face layering is folding between two sets of curtain face layering, make the operation of two curtains book curtain more reliable and more smooth to improve human security.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic view of an installation structure of the elastic pressing strip in the embodiment of the application.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic structural view of a guide slide plate in the embodiment of the present application.
Fig. 5 is a schematic structural diagram of the elastic member and the connecting strip in the embodiment of the present application.
Description of reference numerals: 1. a fire-proof roller shutter; 10. a double curtain rolling door; 2. a fire curtain face; 3. curtain surface layering; 4. elastic battens; 40. mounting blocks; 41. a support bar; 42. a guide slide plate; 420. a guide end; 43. an adjusting plate; 44. a strip hole; 45. a fastener; 5. a connecting rod; 50. a reinforcing rod; 6. an elastic member; 60. a connecting strip; 7. and (4) bolts.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
In order to reduce the influence caused by natural disasters, the fire protection consciousness of human beings is gradually improved, a double-curtain rolling curtain is installed as one fire protection device in a large-scale public place, the combined double-rail double-curtain rolling curtain with the Chinese patent application number of CN202020633400.7 comprises a double-curtain rolling curtain 10, a fire protection curtain face 2 and a curtain face pressing strip 3, two groups of fire protection rolling curtains 1 are installed on the double-curtain rolling curtain 10, and the double-curtain rolling curtain 10 can descend the fire protection rolling curtain 1 into a wall through an automatic induction component so as to divide an ignition area and a non-ignition area.
The fireproof curtain surface 2 is installed between the fireproof curtain curtains 1 connected with two adjacent phases, the fireproof curtain surface 2 is provided with curtain surface pressing strips 3 in a vertical direction, the curtain surface pressing strips 3 at the bottom are provided with supporting ropes, the supporting ropes vertically slide to penetrate through the curtain surface pressing strips 3 and are connected with a driving piece, and the driving piece can drive the supporting ropes to be rolled or released, so that the fireproof curtain surface 2 is folded and stored under the overlapping of the curtain surface pressing strips 3, and the space for containing the folded fireproof curtain surface 2 is saved.
When the fireproof rolling curtain 1 descends, the driving piece transfers the curtain surface pressing strip 3 downwards, under the self-weight action of the curtain surface pressing strip 3, the fireproof rolling curtain 1 and the fireproof rolling curtain surface 2 are connected in a clamping mode through the limiting part, and the fireproof rolling curtain surface 2 and the fireproof rolling curtain 1 form a continuous fireproof wall body, so that the effect of separating a fire area from a non-fire area is achieved.
However, when the fire curtain surface 2 and the fire curtain 1 form a continuous fire wall, there is a gap between the fire curtain surface 2 and the fire curtain 1, so that fire channeling or opening is easily caused by the air pressure in a fire scene, and therefore, further improvement is required to improve the fire resistance of the double-curtain rolling curtain.
The embodiment of the application discloses two curtain book curtains of improved generation combination formula double track.
Referring to fig. 1, the improved combined double-track double-curtain rolling shutter comprises a double-curtain rolling shutter door 10, the double-curtain rolling shutter door 10 comprises two groups of fire-proof rolling shutters 1, two groups of fire-proof curtain surfaces 2 are installed between the adjacent two connected fire-proof rolling shutters 1, curtain surface pressing strips 3 are installed on the fire-proof curtain surfaces 2 at equal intervals along the vertical direction, and the extending direction of the curtain surface pressing strips 3 is the horizontal direction.
When the fire-proof rolling shutter 1 and the fire-proof curtain surface 2 are unfolded, since the falling speeds of the fire-proof rolling shutter 1 and the fire-proof curtain surface 2 are different, the overlapping portion of the fire-proof rolling shutter 1 and the fire-proof curtain surface 2 slides relatively, and after the fire-proof rolling shutter 1 and the fire-proof curtain surface 2 are completely unfolded, the overlapping portion of the fire-proof rolling shutter 1 and the fire-proof curtain surface 2 is prone to fire leaping under the air pressure of a fire scene.
In order to solve the above problem, referring to fig. 2, in this embodiment, an elastic pressing strip 4 is installed at an end of a curtain surface pressing strip 3, an installation component is disposed at an end of the curtain surface pressing strip 3, the installation component can install the elastic pressing strip 4 at the end of the curtain surface pressing strip 3, and a preset distance is provided between one side of the elastic pressing strip 4 close to the curtain surface pressing strip 3 and the curtain surface pressing strip 3, so that one side of the elastic pressing strip 4 close to the curtain surface pressing strip 3 is abutted against an adjacent fire-proof rolling curtain 1, thereby improving the connection strength between the fire-proof rolling curtain 1 and the fire-proof curtain surface 2, reducing the situations of fire spreading and being opened, and improving the safety of the double-curtain rolling curtain.
In this embodiment, the mounting assembly includes a mounting block 40 mounted at an end of the curtain molding 3, two support rods 41 mounted on the mounting block 40 at a side away from the curtain molding 3, the support rods 41 extending perpendicular to a surface of the mounting block 40, an adjusting plate 43 mounted on an end of the support rods 41 away from the mounting block 40, and a fastener 45 mounted on an end of the adjusting plate 43 away from the support rods 41.
The elastic pressing strip 4 is provided with a strip hole 44, the extending direction of the strip hole 44 is consistent with the extending direction of the elastic pressing strip 4, and a fastener 45 penetrates through the strip hole 44 and is provided with a nut in a threaded manner, so that the elastic pressing strip 4 can be fixed on the adjusting plate 43 by utilizing the friction force between the nut and the elastic pressing strip 4.
In order to make the fire-proof rolling screen 1 and the fire-proof screen face 2 slide relatively, in the embodiment, a guide sliding plate 42 is installed at the end part of the elastic pressing strip 4 close to the fire-proof rolling screen 1, and the extending direction of the guide sliding plate 42 is perpendicular to the extending direction of the elastic pressing strip 4.
Referring to fig. 3, guide ends 420 are symmetrically provided at both ends of the guide slide plate 42, the guide ends 420 are provided with two parts, one part is an inclined part for guiding by the inclined surface and a circular ring part for guiding by the outside of the circular ring, the inclined parts are installed at both ends of the guide slide plate 42, and one side of the inclined parts away from the guide slide plate 42 is connected to the circular ring part.
The arrangement of the strip hole 44 on the elastic pressing strip 4 can realize the adjustment of the elastic pressing strip 4 in the extending length direction, so that the guide sliding plates 42 on two adjacent curtain pressing strips 3 in the same group are staggered in the horizontal direction, and the interference condition after the curtain pressing strips 3 are folded is reduced.
In order to provide the overall strength of the two groups of fire-proof curtain surfaces 2, in this embodiment, the end portions of the curtain surface pressing strips 3 are all provided with connecting rods 5, the extending direction of the connecting rods 5 is perpendicular to the extending direction of the curtain surface pressing strips 3, and the two connecting rods 5 on the curtain surface pressing strips 3 corresponding to the two groups of fire-proof curtain surfaces 2 are fixed through fixing parts, and in this embodiment, the fixing parts are bolts 7 penetrating through the two connecting rods 5 of two adjacent different groups.
In order to increase the gap between the two groups of fire-proof curtain surfaces 2, in this embodiment, a reinforcing rod 50 is connected between two adjacent curtain surface pressing strips 3, and the reinforcing rod 50 can be used as required.
When the side-by-side curtain surface pressing strips 3 are vertically overlapped, the fireproof curtain surface 2 can be folded and stored in a cavity between the two groups of curtain surface pressing strips 3, so that the storage space is saved, in the folding process of the fireproof curtain surface 2, the fireproof curtain surface 2 can be folded into a space between the two groups of curtain surface pressing strips 3, the space outside the cavity is influenced, the storage of the curtain surface pressing strips 3 is influenced, and in order to reduce the phenomenon, the elastic piece 6 is arranged between the two groups of fireproof curtain surfaces 2 in the embodiment with reference to fig. 5.
The elastic pieces 6 are provided with multiple groups and are made of tension springs, each group comprises two elastic pieces 6 which are arranged along the horizontal direction, each group of elastic pieces 6 are connected through a connecting strip 60, the cross section of each connecting strip 60 is U-shaped, and two ends of each connecting strip 60 penetrate through the two opposite surfaces of the two groups of fireproof curtain surfaces 2 and are connected with the elastic pieces 6.
When the elastic piece 6 is in a natural state, the distance between the two connecting strips 60 connecting the same elastic piece 6 is smaller than the distance between the two groups of fire-proof curtain surfaces 2, so that when the curtain surface pressing strips 3 are overlapped, the two groups of fire-proof curtain surfaces 2 bend to the opposite side to be close to each other under the elastic force of the elastic piece 6, and the folding of the fire-proof curtain surfaces 2 is facilitated.
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 (8)

1. The utility model provides a curtain is rolled up to improved generation combination formula double track double curtain, includes that two curtain rolling slats door (10), joint slidable mounting that adopt a plurality of fire prevention to roll up curtain (1) to make are two sets of fire prevention curtain face (2) and vertical curtain face layering (3) of installing on fire prevention curtain face (2) side by side between adjacent two fire prevention roll up curtain (1), its characterized in that: the elastic pressing strip (4) is installed at the end of the curtain surface pressing strip (3) and used for pressing the overlapped part between the fireproof roller shutter (1) and the fireproof curtain surface (2), and the end of the curtain surface pressing strip (3) is provided with a mounting assembly used for fixing the elastic pressing strip (4).
2. The improved combined double-rail double-curtain rolling curtain as claimed in claim 1, wherein: the installation component comprises an installation block (40) arranged at the end part of the curtain surface pressing strip (3), the installation block (40) is far away from one side of the curtain surface pressing strip (3) and is provided with a support rod (41) with the surface being vertical to the installation block (40) in the extending direction, and one end of the support rod (41) far away from the installation block (40) is installed with the elastic pressing strip (4).
3. The improved combined double-rail double-curtain rolling curtain as claimed in claim 1, wherein: the elastic pressing strip (4) is used for pressing one end of the fireproof roller shutter (1) and is provided with a guide sliding plate (42), and guide ends (420) are arranged at two ends of the guide sliding plate (42).
4. The improved combined double-rail double-curtain rolling curtain as claimed in claim 2, wherein: bracing piece (41) are kept away from installation piece (40) one end and are installed regulating plate (43), rectangular hole (44) have been seted up on elastic pressing strip (4), install fastener (45) that are used for fixed elastic pressing strip (4) and regulating plate (43) on regulating plate (43).
5. The improved combined double-rail double-curtain rolling curtain as claimed in claim 1, wherein: two sets of connecting rod (5) are correspondingly installed to relative one side between curtain face layering (3) on fire prevention curtain face (2), corresponding it is fixed mutually through the mounting between connecting rod (5), corresponding through anchor strut (50) fixed connection between curtain face layering (3).
6. The improved combined double-rail double-curtain rolling curtain as claimed in claim 1, wherein: and an elastic piece (6) is arranged between the two groups of fireproof curtain surfaces (2), and the end part of the elastic piece (6) is positioned between the two adjacent curtain surface pressing strips (3) of the corresponding group.
7. The improved combined double-rail double-curtain rolling curtain as claimed in claim 6, wherein: elastic component (6) are provided with two sets ofly side by side along the extending direction of curtain layering (3), be fixed with connecting strip (60) on fire prevention curtain face (2), fire prevention curtain face (2) and two settings side by side are passed at the transversal U nature and both ends of personally submitting of connecting strip (60) the tip of elastic component (6) is connected.
8. The improved combined double-rail double-curtain rolling curtain as claimed in claim 5, wherein: the fixing piece comprises a bolt (7) which is arranged between the corresponding connecting rods (5) in a penetrating mode.
CN202120574876.2U 2021-03-19 2021-03-19 Improved combined double-rail double-curtain roller shutter Active CN214550734U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120574876.2U CN214550734U (en) 2021-03-19 2021-03-19 Improved combined double-rail double-curtain roller shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120574876.2U CN214550734U (en) 2021-03-19 2021-03-19 Improved combined double-rail double-curtain roller shutter

Publications (1)

Publication Number Publication Date
CN214550734U true CN214550734U (en) 2021-11-02

Family

ID=78320907

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120574876.2U Active CN214550734U (en) 2021-03-19 2021-03-19 Improved combined double-rail double-curtain roller shutter

Country Status (1)

Country Link
CN (1) CN214550734U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115212496A (en) * 2022-07-29 2022-10-21 应急管理部四川消防研究所 Rolling type fireproof plugging system for valve hall of converter station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115212496A (en) * 2022-07-29 2022-10-21 应急管理部四川消防研究所 Rolling type fireproof plugging system for valve hall of converter station

Similar Documents

Publication Publication Date Title
CN214550734U (en) Improved combined double-rail double-curtain roller shutter
US5765622A (en) Vertically moveable flexible door with releasable bottom bar
EP1029557A1 (en) Smoke protection closing
WO2011124374A1 (en) Fire-protection or smoke-protection device
EP3056651B1 (en) Guide rail for smoke and/or fire-resistant curtain, and smoke and/or fire-resistant curtain with same
CN212201832U (en) Combined double-rail double-curtain roller shutter
CN112049552A (en) Security protection is with keeping apart shutter door device
CN214247119U (en) Novel fire door is prevented to transformer substation in pit
CN210317103U (en) Fireproof and smoke-proof rolling shutter door
CN211819079U (en) Steel fireproof door with high flame retardant property
CN210067923U (en) Large-span guide rail type special-grade fireproof roller shutter structure
KR101438052B1 (en) An articulated fireproof screen shutter
TWM543921U (en) Positioning structure of overhead smoke-shielding screen
CN210396558U (en) Anti-explosion fireproof rolling shutter door
CN213743075U (en) Fire prevention is rolled up curtain with separate smoke evacuation and prevent fire door
CN2707931Y (en) Fire curtain with door-in-curtain
CN112302514A (en) Horizontal fireproof rolling door and use method thereof
CN2360114Y (en) Appts for preventing fire and smoke
CN214697614U (en) Hybrid double-curtain roller shutter door
CN218787085U (en) Indoor fire-proof rolling curtain structure
CN216690881U (en) Folding plate type automatic fireproof plugging device
CN213450176U (en) Glass fiber fireproof roller shutter
CN221144165U (en) Enclosed fireproof rolling shutter
CN215255924U (en) Novel fire prevention thermal-insulated fire control rolling slats door
CN216197673U (en) Fire-proof rolling curtain

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant