CN219197177U - Automatic closed fireproof shutter - Google Patents

Abstract

The utility model relates to a shutter technical field especially relates to an automatic closed fire prevention shutter, it includes frame and insurance piece, be provided with a plurality of blades side by side along the direction of height of frame in the frame, be provided with the axis of rotation on the blade, the blade passes through the axis of rotation and rotates to be installed on the inner wall of frame, the insurance piece is located the frame and is close to indoor one side, the installation space has been seted up in the frame, the insurance piece includes interconnect's first connecting portion, fusing portion and second connecting portion, fusing portion can fuse when the conflagration breaks out, first connecting portion and second connecting portion are located fusing portion's both ends, second connecting portion is close to the ground than first connecting portion, first connecting portion passes through the bolt fastening in the frame; be provided with coupling assembling and drive assembly in the installation space, the second connecting portion passes through coupling assembling and links to each other with drive assembly, and when the fusing portion fuses, the accessible coupling assembling of second connecting portion drives drive assembly drive blade and rotates. The application has the effect of controlling the safety of the shutter closure.

Description

Automatic closed fireproof shutter

Technical Field

The application relates to the technical field of blinds, in particular to an automatic closed fireproof blind window.

Background

The shutter is a style of window and comprises a frame and a plurality of blades, when the blades are not abutted, the shutter is in an open state, and indoor and outdoor air flows; when the blades rotate to be mutually abutted, the shutter is in a closed state, and indoor and outdoor air is not easy to circulate. Be provided with the connecting rod in the frame, the axis of rotation of a plurality of blades all passes the inner wall of frame and rotate and connect on the connecting rod, when needs shutter closure, manual control connecting rod goes up and down, makes a plurality of blades rotate to mutual butt simultaneously to make shutter switching.

When a fire disaster occurs indoors, the shutter needs to be closed to block the ventilation of the inside and the outside of the compartment, so that the condition of combustion is lacking, and the fire disaster can be conveniently extinguished.

With respect to the related art described above, the inventors consider that controlling the shutter to close when a fire occurs requires manual control of the links to close the shutter, which is liable to affect the safety of the operator.

Disclosure of Invention

In order to improve safety in controlling the closing of a blind, the present application provides an automatic closed fire protection blind.

The application provides an automatic closed fire prevention shutter adopts following technical scheme:

the automatic closed fireproof shutter comprises a frame and a safety piece, wherein a plurality of blades are arranged on the frame, the blades are arranged in parallel along the height direction of the frame, a rotating shaft is arranged on the blades, the blades are rotatably installed on the inner wall of the frame through the rotating shaft, the safety piece is positioned on one side, close to the room, of the frame, the top end and the side edge of the frame are provided with installation spaces, the safety piece comprises a first connecting part, a fusing part and a second connecting part which are mutually connected, the fusing part can fuse when a fire disaster occurs, the first connecting part and the second connecting part are positioned at two ends of the fusing part, the second connecting part is closer to the ground than the first connecting part, and the first connecting part is fixed on the frame through bolts;

the installation space is internally provided with a connecting component and a driving component, the second connecting part is connected with the driving component through the connecting component, and when the fusing part fuses, the second connecting part can drive the driving component to drive the rotating shaft of the blade to rotate through the connecting component.

Through adopting above-mentioned technical scheme, when indoor fire, the fusing part on the insurance piece receives high temperature fusing, and second connecting portion drops to ground, and the second connecting portion passes through coupling assembling and drives drive assembly to drive the axis of rotation of blade and begin to rotate until making the shutter closed, thereby make indoor and outdoor air be difficult for circulating, reduce the condition of indoor conflagration burning, be convenient for put out the conflagration, compare in manual control shutter closure, improved the closed security of control shutter.

Optionally, the device further comprises a fixing ring, wherein the fixing ring is positioned in the installation space, the fixing ring is detachably connected with the second connecting part through the connecting component, and when the fusing part fuses, the second connecting part can enable the fixing ring to lose support through the connecting component; the driving assembly comprises a driving rod and a plurality of swinging rods, the fixing ring is used for fixing the driving rod, the fixing ring is closer to the top surface of the frame than the driving rod, one end of each swinging rod is hinged to the driving rod, and the other end of each swinging rod is hinged to the rotating shaft of the corresponding blade.

Through adopting above-mentioned technical scheme, when solid fixed ring receives the influence of second connecting portion downwardly moving, drops the back from second connecting portion, and the actuating lever descends along with solid fixed ring's decline, drives the pendulum rod and rotates to drive the blade and rotate to make the shutter closed, realized simultaneously driving a plurality of blades and rotated, improved actuating lever drive blade pivoted efficiency, saved the energy consumption.

Optionally, the device further comprises a sliding piece and a limiting assembly, wherein the connecting assembly comprises a balancing weight and a plurality of connecting rods, the balancing weight is fixedly connected with the second connecting part through the connecting rods, and a limiting groove for the connecting rods on the balancing weight to move is formed in the rack;

the connecting rod comprises a first rod body and a second rod body, wedge-shaped surfaces are arranged on the first rod body and the second rod body respectively and are positioned at one ends of the first rod body and the second rod body which are close to each other, the wedge-shaped surfaces on the first rod body and the wedge-shaped surfaces on the second rod body are matched and mutually abutted, the sliding piece is positioned on the wedge-shaped surfaces, the first rod body and the second rod body are in sliding connection through the sliding piece, the first rod body is fixedly connected with the balancing weight through the connecting rod, and the second rod body passes through the fixing ring to be abutted against the inner wall of the rack; when the first rod body moves along with the balancing weight in the direction close to the ground, the first rod body drives the second rod body to move out of the fixed ring through the sliding piece; the limiting assembly is used for limiting the movement of the first rod body and the second rod body.

Through adopting above-mentioned technical scheme, when the conflagration breaks out, the fusing portion on the insurance piece receives high temperature influence fusing, the second connecting portion drives the balancing weight and moves down, the balancing weight drives first body of rod downwardly moving, first body of rod and second body of rod take place relative slip, make the second body of rod remove until moving out in the solid fixed ring to keeping away from the direction of solid fixed ring, gu fixed ring loses the support, thereby make the actuating lever downwardly moving, drive the connecting rod and rotate, make the axis of rotation of blade rotate until making the shutter closed, thereby realized leaning on the dead weight control blade rotation of insurance piece to make the shutter closed, the closed security of control shutter has been improved.

Optionally, the spacing subassembly includes first fixed frame and second fixed frame, first fixed frame and second fixed frame all with the inner wall fixed connection of frame, first body of rod passes first fixed frame, the second body of rod passes the fixed frame of second.

Through adopting above-mentioned technical scheme, make first body of rod and second body of rod be difficult for running askew when removing, support first body of rod and second body of rod simultaneously, improved the stability of first body of rod and second body of rod installation.

Optionally, the fixing ring includes a first ring body and a second ring body, the first ring body and the second ring body are fixedly connected through a connecting rod, the first ring body is closer to the top end of the frame than the second ring body, and the second rod body passes through the first ring body and is abutted against the inner wall of the frame;

the driving rod is provided with a connecting piece, the connecting piece is a hook, and the driving rod is hung on the second ring body through the hook; the mounting groove is formed in the frame and close to the fixing ring, the mounting groove is communicated with the mounting space, a mounting plate is hinged to the opening of the mounting groove, the mounting plate can rotate to block the mounting groove, and the mounting plate is fixed to the frame through bolts.

Through adopting the technical scheme, when the shutter is required to be manually controlled to be opened, the bolts on the mounting plate are disassembled, the mounting plate is rotated to be opened, and the hooks on the driving rod are hung on the second ring body, so that the driving rod is lifted to drive the blades to rotate until the shutter is opened, and then the mounting plate is fixed on the rack through the bolts; when the shutter is required to be manually controlled to be closed, the mounting plate is opened, the hooks on the driving rod are taken down from the second ring body, so that the driving rod descends to drive the blades to rotate until the shutter is closed, and the mounting plate is fixed on the frame, so that the shutter can be conveniently controlled to be opened and closed when no fire occurs.

Optionally, the slider is the slider, slider fixed connection is on the terminal surface that the second body of rod is close to the first body of rod, set up on the first body of rod with slider complex spout.

Through adopting above-mentioned technical scheme, when second connecting portion and balancing weight drive the first body of rod decline back slider in the spout slide, make the second body of rod take place the slip of horizontal direction, thereby until shift out first ring body and lose support and descend, drive the actuating lever and descend, realized the sliding connection of first body of rod and second body of rod, simple structure, simple to operate.

Optionally, the cross section of spout is protruding font, slider and spout looks adaptation.

Through adopting above-mentioned technical scheme, when the slider slides in the spout, the cross-section of spout is protruding style of calligraphy, slider and spout looks adaptation, makes the slider be difficult for dropping from the spout to improved the first body of rod be difficult for dropping from the second body of rod, improved the stability of first body of rod installation.

Optionally, the blade further comprises a plurality of limiting pieces, wherein the limiting pieces are positioned at two ends of the length direction of the blade, the limiting pieces are arranged in parallel along the height direction of the frame, and two ends of one blade correspond to one limiting piece respectively; the limiting piece is a limiting frame, the limiting frame is fixedly connected to the inner side wall of the frame, the limiting frame is located on the top surface of a corresponding blade, a fixing plate matched with the limiting frame is arranged on the blade, the limiting frame comprises two oppositely arranged unit half-arc plates, and the blade can rotate until the fixing plate is respectively abutted to the inner walls of the two unit half-arc plates.

Through adopting above-mentioned technical scheme, when the blade is rotating, the fixed plate on the blade rotates to when two unit half arc boards butt with the locating part, and the blade can not rotate any more to limited the rotation scope of blade, made the difficult indiscriminate rotation of blade, improved blade pivoted stability.

To sum up, the application comprises the following beneficial technical effects of at least one automatic closed fireproof shutter:

1. through setting up of insurance piece, coupling assembling and drive assembly, when indoor fire, the fusing part on the insurance piece receives the high temperature and fuses, and second coupling part drops to ground, and second coupling part drives drive assembly through coupling assembling to drive the axis of rotation of blade and begin to rotate until making the shutter closed, thereby make indoor and outdoor air be difficult for circulating, reduce the condition that indoor fire burns, be convenient for put out the conflagration, compare with manual control shutter closure, improved the security of control shutter closure;

2. through the arrangement of the sliding piece and the limiting component, when a fire disaster occurs, the fusing part on the safety piece is fused under the influence of high temperature, the second connecting part drives the balancing weight to move downwards, the balancing weight drives the first rod body to move downwards, the first rod body and the second rod body slide relatively, the second rod body moves in the direction away from the fixed ring until moving out of the fixed ring, the fixed ring loses support, so that the driving rod moves downwards, the connecting rod is driven to rotate, the rotating shaft of the blade is driven to rotate until the shutter is closed, the shutter is controlled to be closed by the dead weight of the safety piece, and the safety of controlling the shutter to be closed is improved;

3. through the arrangement of the connecting piece and the second ring body, when the shutter is required to be manually controlled to be opened, the bolts on the mounting plate are disassembled, the mounting plate is rotated to be opened, the hooks on the driving rod are hung on the second ring body, so that the driving rod is lifted to drive the blades to rotate until the shutter is opened, and then the mounting plate is fixed on the rack through the bolts; when the shutter is required to be manually controlled to be closed, the mounting plate is opened, the hooks on the driving rod are taken down from the second ring body, so that the driving rod descends to drive the blades to rotate until the shutter is closed, and the mounting plate is fixed on the frame, so that the shutter can be conveniently controlled to be opened and closed when no fire occurs.

Drawings

Fig. 1 is a schematic view of the overall structure of an automatic sealed fireproof shutter according to an embodiment of the present application.

Fig. 2 is a schematic structural view of a part of a frame and a driving rod for showing a blade in an embodiment of the present application.

Fig. 3 is a schematic structural view for showing a rupture disc according to an embodiment of the present application.

Fig. 4 is a schematic structural view of the limiting member for displaying the part of the blade after being hidden in the embodiment of the present application.

Fig. 5 is a schematic view of a structure for showing a driving assembly after hiding part of a frame and a blade in an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a connecting rod for showing a part of a rack after being hidden in an embodiment of the present application.

Fig. 7 is a schematic structural diagram of the limiting assembly after moving the second rod in the embodiment of the present application.

Fig. 8 is a schematic structural view for showing a slider in the embodiment of the present application.

Reference numerals illustrate: 1. a frame; 11. an installation space; 12. a limit groove; 13. a mounting groove; 14. a mounting plate; 2. a security pane; 21. a first connection portion; 22. a fusing part; 23. a second connecting portion; 3. a blade; 31. a rotating shaft; 32. a fixing plate; 4. a connection assembly; 41. balancing weight; 42. a connecting rod; 421. a first rod body; 4211. a chute; 422. a second rod body; 4221. a slide block; 5. a drive assembly; 51. a driving rod; 511. a hook; 52. swing rod; 6. a limiting frame; 61. a unit half-arc plate; 7. a fixing ring; 71. a first ring body; 72. a second ring body; 8. a limit component; 81. a first fixing frame; 82. and a second fixing frame.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-8.

The embodiment of the application discloses an automatic closed fireproof shutter. Referring to fig. 1, 2 and 3, the automatic closed fire-proof shutter includes a frame 1, a safety disc 2 and a plurality of blades 3, the blades 3 are arranged in parallel along the height direction of the frame 1, a rotation shaft 31 is arranged on one side of the blades 3 close to the room, the height of one side of the blades 3 far away from the room is lower than that of one side of the blades 3 close to the room, the blades 3 are rotatably mounted on the inner wall of the frame 1 through the rotation shaft 31, and the safety disc 2 is positioned on one side of the frame 1 close to the room. The rupture disc 2 includes a first connection part 21, a fusing part 22 and a second connection part 23 connected to each other, and the fusing temperature of the fusing part 22 is less than the temperature at which fire burns. The installation space 11 has been seted up in the frame 1, and installation space 11 is located the top and the one side of frame 1, and automatic closed fire prevention shutter still includes coupling assembling 4 and drive assembly 5, and coupling assembling 4 and drive assembly 5 all are located installation space 11, and drive assembly 5 links to each other through coupling assembling 4 and the second connecting portion 23 on the insurance piece 2, and when fusing portion 22 fuses, second connecting portion 23 accessible coupling assembling 4 drive assembly 5 drive blade 3 rotation.

When the conflagration takes place, indoor temperature risees, and the fusing part 22 on the insurance piece 2 fuses, makes second connecting portion 23 drop to the direction that is close to the ground, and second connecting portion 23 drives drive assembly 5 through coupling assembling 4, and drive assembly 5 drives blade 3 rotation, through the fusing of insurance piece 2, makes in the conflagration emergence can drive blade 3 rotation to make the shutter closed voluntarily, has improved the closed security of control shutter.

Referring to fig. 1 and 4, the automatic closed fireproof shutter further comprises two sets of limiting members, limiting members are limiting frames 6, the limiting members 6 are fixedly connected to the side wall of the frame 1, the two sets of limiting members are arranged side by side along the height direction of the frame 1, each set of limiting members comprises a plurality of limiting members 6, the two sets of limiting members 6 respectively correspond to two ends of the blades 3, each blade 3 corresponds to two limiting members 6, and each limiting member 6 is close to the top end of the frame 1 compared with the corresponding blade 3. Both ends of the blade 3 are fixedly provided with fixing plates 32 which are matched with the limiting frames 6, and the fixing plates 32 are positioned on one side of the blade 3 close to the room, namely, the fixing plates 32 are positioned above the rotating shafts 31. Each of the limiting frames 6 includes two oppositely disposed unit half-arc plates 61, and the two unit half-arc plates 61 are juxtaposed in the height direction of the frame 1. When the shutter is opened and closed, the fixing plate 32 may be respectively abutted against the inner walls of the two unit half arc plates 61 as the vane 3 rotates. When the shutter needs to be opened, one side, far from the indoor space, of the blade 3 rotates in a direction far from the ground until the fixed plate 32 on the blade 3 is abutted with the inner wall of the unit half arc plate 61 far from the ground; when the shutter needs to be closed, one side of the blade 3 far away from the outside rotates in the direction close to the ground until the fixed plate 32 on the blade 3 is abutted against the inner wall of the unit half arc plate 61 close to the ground, so that the rotation range of the blade 3 is limited, the blade 3 is not easy to rotate in disorder, and the rotation stability of the blade 3 is improved.

Referring to fig. 1 and 5, the driving assembly 5 includes a driving rod 51 and a plurality of swing rods 52, the driving rod 51 is far away from the room compared with the rotation shaft 31 of the blade 3, each swing rod 52 corresponds to one blade 3, the rotation shaft 31 of the blade 3 passes through the inner wall of the frame 1 to be rotationally connected with the corresponding swing rod 52, and one end of the swing rod 52 far away from the rotation shaft 31 of the blade 3 is rotationally connected with the driving rod 51. The automatic sealed fireproof shutter further comprises a fixing ring 7, wherein the fixing ring 7 is used for fixing the driving rod 51, and the fixing ring 7 is detachably connected with the second connecting part 23 through the connecting assembly 4. When the fusing part 22 fuses, the second connection part 23 may cause the fixing ring 7 to lose support through the connection assembly 4.

When the indoor conflagration that takes place, fusing portion 22 fuses, and second connecting portion 23 makes solid fixed ring 7 lose the support through coupling assembling 4, drives actuating lever 51 and descends, and actuating lever 51 drives a plurality of pendulum rods 52 simultaneously and rotates downwards to make the axis of rotation 31 of blade 3 rotate downwards, thereby make blade 3 butt each other, the shutter is closed, has realized a plurality of blades 3 simultaneously and has rotated, has improved blade 3 pivoted efficiency, has saved the energy consumption.

Referring to fig. 5, 6 and 7, the connecting assembly 4 includes a weight 41 and a plurality of connecting rods 42, the weight 41 is fixedly connected with the second connecting portion 23 through the connecting rods, and the frame 1 is provided with a limiting groove 12 for the connecting rods on the weight 41 to descend. The connecting rod 42 comprises a first rod body 421 and a second rod body 422, the first rod body 421 is vertically arranged along the height direction of the frame 1, the second rod body 422 is horizontally arranged along the length direction of the frame 1, one end, far away from the ground, of the first rod body 421 and one end, close to the rupture disc 2, of the second rod body 422 are mutually abutted, and the end faces of the two mutually abutted end faces are wedge faces. The automatic closed fireproof shutter further comprises a sliding piece, the first rod body 421 and the second rod body 422 are connected in a sliding mode through the sliding piece, the first rod body 421 is fixedly connected with the balancing weight 41 through a connecting rod, and the second rod body 422 passes through the fixing ring 7 to be abutted against the inner wall of the frame 1; when the first rod 421 moves along with the weight 41 in a direction approaching the ground, the first rod 421 drives the second rod 422 to move out of the fixing ring 7 through the sliding member.

When a fire disaster occurs, the balancing weight 41 descends along with the second connecting part 23 to drive the first rod body 421 to descend, the first rod body 421 and the second rod body 422 relatively slide through the sliding part, the second rod body 422 moves in the direction away from the driving rod 51 until the second rod body moves out of the fixed ring 7, the fixed ring 7 loses support to drive the driving rod 51 to descend, and accordingly the blades 3 are driven to rotate, the shutter is closed, the purpose that the blades 3 are driven to rotate by the weight of the second connecting part 23 and the balancing weight 41 without manually controlling the shutter to be closed is achieved, and safety of controlling the shutter to be closed is improved.

Referring to fig. 8, the sliding member is a sliding block 4221, the sliding block 4221 is fixedly connected to a wedge surface of the second rod body 422, a sliding groove 4211 is formed in the wedge surface of the first rod body 421, the cross section of the sliding groove 4211 is in a convex shape, the sliding block 4221 is matched with the sliding groove 4211, the sliding block 4221 is clamped in the sliding groove 4211 more tightly, and the sliding block 4221 is not easy to fall from the sliding groove 4211, so that the first rod body 421 and the second rod body 422 are not easy to separate, and the stability of sliding connection between the first rod body 421 and the second rod body 422 is improved. Through the cooperation of the sliding block 4221 and the sliding groove 4211, the sliding connection of the first rod 421 and the second rod 422 is realized, and the structure is simple and the installation is convenient.

Referring to fig. 1, 5 and 7, the automatic closed fireproof shutter further comprises a connecting piece, wherein the connecting piece is a hook 511, and one end, close to the safety disc 2, of the driving rod 51 is fixedly connected with the hook 511; the fixed ring 7 comprises a first ring body 71 and a second ring body 72, the second rod body 422 penetrates through the first ring body 71 and is abutted against the inner side wall of the frame 1, and the driving rod 51 is hung on the second ring body 72 through the hanging hook 511. A mounting groove 13 is formed in the frame 1, close to the first ring body 71, the mounting groove 13 is communicated with the mounting space 11, a mounting plate 14 is hinged to the opening of the mounting groove 13, the mounting plate 14 can rotate to block the mounting groove 13, and the mounting plate 14 is fixed through bolts.

When the shutter is required to be normally closed, the bolts are firstly disassembled, the mounting plate 14 is rotated to be opened, the hands of an operator extend into the mounting space 11, the hooks 511 of the driving rod 51 are removed from the second ring body 72, so that the driving rod 51 descends, the blades 3 rotate towards the direction close to the ground, the shutter is closed, the mounting plate 14 is rotated to be closed, and the bolts are used for fixing; when the shutter needs to be opened daily, the bolts are detached first, the mounting plate 14 is rotated to be opened, the hands of an operator extend into the mounting space 11, and the hooks 511 on the driving rod 51 are hung on the second ring body 72, so that the driving rod 51 is lifted, the blades 3 are rotated in a direction away from the ground, and the shutter is opened. The shutter can be conveniently controlled to be opened or closed in daily life.

Referring to fig. 6 and 7, the automatic closed fireproof shutter further includes a limiting component 8, the limiting component 8 is used for limiting movement of the first rod 421 and the second rod 422, the limiting component 8 includes a first fixing frame 81 and a second fixing frame 82, the first fixing frame 81 is fixedly connected with a side wall of the frame 1, an inner hole of the first fixing frame 81 is larger than a section of the first rod 421, the second fixing frame 82 is fixedly connected with an inner top wall of the frame 1, an inner hole of the second fixing frame 82 is larger than a section of the second rod 422, one end, close to the ground, of the first rod 421 passes through the first fixing frame 81, a middle portion of the second rod 422 passes through the second fixing frame 82, and in practical situations, the inner hole of the first fixing frame 81 and the second fixing frame 82 can be adjusted according to needs. When the first rod 421 and the second rod 422 slide relatively, the first fixing frame 81 and the second fixing frame 82 limit the moving range of the first rod 421 and the second rod 422, and support the first rod 421 and the second rod 422 at the same time, so that the first rod 421 and the second rod 422 cannot shake in disorder, and the stability of the installation of the first rod 421 and the second rod 422 is improved.

The implementation principle of the automatic closed fireproof shutter provided by the embodiment of the application is as follows: when a fire disaster occurs in the room, the fusing part 22 on the safety plate 2 reaches the fusing temperature for fusing, and the second connecting part 23 drops to the direction close to the ground, so as to drive the balancing weight 41 to move downwards together. The balancing weight 41 drives the first rod body 421 to move downwards through the connecting rod, the second rod body 422 slides relatively, moves towards the direction far away from the first ring body 71 until moving out of the first ring body 71, the first ring body 71 loses support, the driving rod 51 is driven to move downwards, the driving rod 51 drives the swinging rod 52 to rotate towards the direction close to the ground, namely the rotating shaft 31 of the blade 3 is driven to move towards the direction close to the ground, so that the plurality of blades 3 simultaneously rotate to enable the shutter to be closed, indoor and outdoor air is not easy to circulate, the combustion condition of indoor fire is lost, and the fire is conveniently extinguished. The driving rod 51 is driven by the weight of the second connecting part 23 and the balancing weight 41 on the safety disc 2 to drive the blades 3 to rotate, so that the shutter is automatically controlled to be closed, and the safety of controlling the shutter to be closed in a fire disaster is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. The utility model provides an automatic closed fire prevention shutter, includes frame (1), is provided with a plurality of blades (3) on frame (1), and blade (3) are provided with axis of rotation (31) along the direction of height of frame (1) side by side on blade (3), and blade (3) are installed on the inner wall of frame (1) through axis of rotation (31) rotation, its characterized in that: the safety device is characterized by further comprising a safety piece (2), wherein the safety piece (2) is positioned on one side, close to the room, of the frame (1), the top end and the side edge of the frame (1) are both provided with mounting spaces (11), the safety piece (2) comprises a first connecting part (21), a fusing part (22) and a second connecting part (23) which are connected with each other, the fusing part (22) can be fused when a fire disaster occurs, the first connecting part (21) and the second connecting part (23) are positioned at two ends of the fusing part (22), the second connecting part (23) is closer to the ground than the first connecting part (21), and the first connecting part (21) is fixed on the frame (1) through bolts;

the novel blade is characterized in that a connecting component (4) and a driving component (5) are arranged in the installation space (11), the second connecting part (23) is connected with the driving component (5) through the connecting component (4), and when the fusing part (22) fuses, the second connecting part (23) can drive the driving component (5) to drive the rotating shaft (31) of the blade (3) to rotate through the connecting component (4).

2. An automatic closed fire protection shutter according to claim 1, characterized in that: the fixing device further comprises a fixing ring (7), wherein the fixing ring (7) is positioned in the installation space (11), the fixing ring (7) is detachably connected with a second connecting part (23) through a connecting component (4), and when the fusing part (22) fuses, the second connecting part (23) can enable the fixing ring (7) to lose support through the connecting component (4); the driving assembly (5) comprises a driving rod (51) and a plurality of swinging rods (52), the fixing ring (7) is used for fixing the driving rod (51), the fixing ring (7) is closer to the top surface of the frame (1) than the driving rod (51), one end of each swinging rod (52) is hinged to the driving rod (51), and the other end of each swinging rod (52) is hinged to the rotating shaft (31) of the corresponding blade (3).

3. An automatic closed fire protection shutter according to claim 2, characterized in that: the device also comprises a sliding part and a limiting assembly (8), wherein the connecting assembly (4) comprises a balancing weight (41) and a plurality of connecting rods (42), the balancing weight (41) is fixedly connected with the second connecting part (23) through the connecting rods, and the frame (1) is provided with a limiting groove (12) for the connecting rods on the balancing weight (41) to move;

the connecting rod (42) comprises a first rod body (421) and a second rod body (422), wedge-shaped surfaces are arranged on the first rod body (421) and the second rod body (422), the wedge-shaped surfaces are respectively positioned at one ends of the first rod body (421) and the second rod body (422) which are close to each other, the wedge-shaped surfaces on the first rod body (421) and the wedge-shaped surfaces on the second rod body (422) are matched and mutually abutted, the sliding piece is positioned on the wedge-shaped surfaces, the first rod body (421) and the second rod body (422) are in sliding connection through the sliding piece, the first rod body (421) is fixedly connected with the balancing weight (41) through the connecting rod, and the second rod body (422) penetrates through the fixing ring (7) to be abutted against the inner wall of the rack (1); when the first rod body (421) moves along with the balancing weight (41) in a direction approaching the ground, the first rod body (421) drives the second rod body (422) to move out of the fixed ring (7) through the sliding piece; the limiting component (8) is used for limiting the movement of the first rod body (421) and the second rod body (422).

4. An automatic closed fire protection shutter according to claim 3, characterized in that: the limiting component (8) comprises a first fixed frame (81) and a second fixed frame (82), the first fixed frame (81) and the second fixed frame (82) are fixedly connected with the inner wall of the frame (1), the first rod body (421) penetrates through the first fixed frame (81), and the second rod body (422) penetrates through the second fixed frame (82).

5. An automatic closed fire protection shutter according to claim 3, characterized in that: the fixed ring (7) comprises a first ring body (71) and a second ring body (72), the first ring body (71) and the second ring body (72) are fixedly connected through a connecting rod, the first ring body (71) is closer to the top end of the frame (1) than the second ring body (72), and the second rod body (422) passes through the first ring body (71) and is abutted against the inner wall of the frame (1);

the driving rod (51) is provided with a connecting piece, the connecting piece is a hook (511), and the driving rod (51) is hung on the second ring body (72) through the hook (511); the mounting device is characterized in that a mounting groove (13) is formed in the frame (1) close to the fixing ring (7), the mounting groove (13) is communicated with the mounting space (11), a mounting plate (14) is hinged to the opening of the mounting groove (13), the mounting plate (14) can rotate to block the mounting groove (13), and the mounting plate (14) is fixed on the frame (1) through bolts.

6. An automatic closed fire protection shutter according to claim 3, characterized in that: the sliding piece is a sliding block (4221), the sliding block (4221) is fixedly connected to the end face, close to the first rod body (421), of the second rod body (422), and a sliding groove (4211) matched with the sliding block (4221) is formed in the first rod body (421).

7. An automatic closed fire protection shutter according to claim 6, characterized in that: the section of the sliding groove (4211) is in a convex shape, and the sliding block (4221) is matched with the sliding groove (4211).

8. An automatic closed fire protection shutter according to claim 1, characterized in that: the blade type air conditioner further comprises a plurality of limiting pieces, wherein the limiting pieces are positioned at two ends of the blade (3) in the length direction, the limiting pieces are arranged in parallel along the height direction of the frame (1), and two ends of one blade (3) correspond to one limiting piece respectively; the limiting piece is a limiting frame (6), the limiting frame (6) is fixedly connected to the inner side wall of the frame (1), the limiting frame (6) is located on the top surface of the corresponding blade (3), a fixing plate (32) matched with the limiting frame (6) is arranged on the blade (3), the limiting frame (6) comprises two oppositely arranged unit half-arc plates (61), and the blade (3) can rotate until the fixing plate (32) is respectively abutted to the inner walls of the two unit half-arc plates (61).

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