CN216406571U - Smoke exhaust window and building with same - Google Patents
Smoke exhaust window and building with same Download PDFInfo
- Publication number
- CN216406571U CN216406571U CN202122721251.7U CN202122721251U CN216406571U CN 216406571 U CN216406571 U CN 216406571U CN 202122721251 U CN202122721251 U CN 202122721251U CN 216406571 U CN216406571 U CN 216406571U
- Authority
- CN
- China
- Prior art keywords
- pulley
- window
- movable
- sash
- smoke exhaust
- 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
Links
Images
Abstract
The utility model discloses a smoke exhaust window and a building with the smoke exhaust window, wherein the smoke exhaust window comprises a window frame, a movable window sash, a first pulley, a second pulley and a third pulley, the window frame is used for being installed at a window hole of the building, the window frame is provided with a first side and a second side which are oppositely arranged, the movable window sash is movably arranged on the window frame, the first pulley is fixedly arranged on the first side, the second pulley is arranged on the second side, the third pulley is arranged on the second side and is separated from the second pulley, a traction piece is fixedly connected with the movable window sash, one end of the traction piece is wound on the second pulley, and the other end of the traction piece is fixedly connected with the movable window sash and is sequentially wound on the first pulley and the third pulley; the traction piece is used for driving the movable window sash to slide back and forth along the directions of the second side and the first side so as to expose or cover the window hole. The smoke exhaust window can be opened or closed manually, and is simple to operate.
Description
Technical Field
The utility model relates to the technical field of fire-fighting facilities, in particular to a smoke exhaust window and a building with the smoke exhaust window.
Background
When a fire occurs, smoke in a room rises and accumulates on the roof, and thus, an external window for discharging smoke needs to be opened at a high position of the roof or an external wall of a building. However, the existing smoke exhaust window arranged at a high position mostly adopts an electric opening mode, and once a fire disaster occurs, the situation that the electric device is powered off or the electric function of the electric device fails can be caused to the maximum extent, so that the smoke exhaust window cannot be opened.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model discloses a smoke exhaust window and a building with the same, which can be manually opened or closed.
In order to achieve the above object, in a first aspect, the present invention discloses a smoke discharging window, comprising:
the window frame is used for being installed at a window opening of the building and is provided with a first side and a second side which are oppositely arranged;
the movable window sash is movably arranged on the window frame;
the first pulley is fixedly arranged on the first side;
the second pulley is arranged on the second side;
the third pulley is arranged on the second side and is arranged at an interval with the second pulley; and
the traction piece is fixedly connected to the movable window sash, one end of the traction piece is wound on the second pulley, and the other end of the traction piece is fixedly connected to the movable window sash and is sequentially wound on the first pulley and the third pulley; the traction piece is used for driving the movable window sash to slide in a reciprocating mode along the directions of the second side and the first side so as to expose or cover the window hole.
As an alternative implementation manner, in the embodiment of the present invention, the second pulley and the third pulley are disposed adjacent to each other, and the second pulley and the third pulley are disposed in a staggered manner in the vertical direction.
As an optional implementation manner, in an embodiment of the present invention, the smoke exhaust window further includes a connection component, the connection component has a first connection portion and a second connection portion connected to the first connection portion, the first connection portion is fixedly connected to the movable window sash, the second connection portion is perpendicular to the movable window sash, the second connection portion is provided with at least one opening, and the other end of the traction component penetrates through the opening and is fixedly connected to the second connection portion.
As an alternative implementation manner, in the embodiment of the present invention, in the vertical direction, the distance from the connecting part to the bottom of the movable sash is greater than or equal to the distance from the first pulley to the bottom of the movable sash.
As an optional implementation manner, in an embodiment of the present invention, the number of the movable sashes is multiple, the plurality of movable sashes are arranged at intervals along a direction from the first side to the second side, the smoke exhaust window further includes a support member, the support member is arranged on the window frame and located between two adjacent movable sashes, and the support member is used for supporting the traction piece.
As an alternative, in an embodiment of the utility model, the distance from the support member to the bottom of the window frame in the vertical direction is greater than or equal to the distance from the first pulley to the bottom of the window frame.
As an alternative embodiment, in an embodiment of the utility model, the support member is a hook or a suspension loop.
As an optional implementation manner, in an embodiment of the present invention, the smoke exhaust window further includes a fixed window sash, the fixed window sash is fixedly disposed on the window frame, and the movable window sash can slide along the window frame to at least partially overlap with the fixed window sash.
As an alternative, in an embodiment of the utility model, the pulling element is a fire-resistant rope, a wire rope or a chain.
As an alternative implementation manner, in an embodiment of the present invention, the smoke evacuation window further includes a holding part, and the holding part is fixedly connected to the movable window sash.
In a second aspect, the present invention discloses a building comprising an extractor hood as described above in relation to the first aspect.
Compared with the prior art, the utility model has the beneficial effects that:
according to the smoke exhaust window and the building with the smoke exhaust window, the smoke exhaust window is provided with the traction piece, one end of the traction piece is wound on the second pulley, the other end of the traction piece is fixedly connected to the movable window sash and then is wound on the periphery of the first pulley through the first pulley in a rotating mode, therefore when a user needs to open the movable window sash to exhaust smoke, the traction piece can be manually pulled to be wound on one end of the second pulley (or wound on the other end of the third pulley), then the movable window sash fixedly connected with the traction piece is driven to slide to expose a window hole along the direction of the second side, and when the movable window sash needs to be closed, the traction piece can be manually pulled to be wound on the other end of the third pulley (or wound on one end of the second pulley), and the movable window sash is driven to slide along the direction of the first side and return to cover the window hole. Through this smoke exhaust window simple structure, not only can manually open and close the activity casement, and easy operation, the user operation of being convenient for.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a sliding window provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a connecting member provided in an embodiment of the present invention;
fig. 3 is a side view of a sliding window provided in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.
Statistics show that the number of people killed by smoke in a fire accident accounts for about 80 percent of the total casualties. When a fire occurs, smoke can rise to the top of a building and is accumulated in a smoke storage bin formed by a smoke blocking vertical wall and a beam, so that an outer window for smoke exhaust is usually arranged at the top of the building or at the high position of an outer wall of the building, however, most of smoke exhaust windows at present adopt an automatic or linkage opening mode, once a fire occurs, the power failure of an electric device or the linkage and automatic function failure of the electric device can be caused greatly, and therefore, a manual opening device still needs to be arranged on the high-position smoke exhaust window. Based on the above, the utility model discloses a smoke exhaust window capable of being opened or closed manually.
The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention discloses an exhaust window, which may be installed at a window opening of a building so that smoke accumulated at the top of a room may be discharged to the outside of the window. Specifically, the smoke exhaust window comprises a window frame 1, a movable window sash 2, a first pulley 3, a second pulley 4, a third pulley 5 and a traction piece 6. The window frame 1 is used for being installed at a window opening of a building, and the window frame 1 has a first side 11 and a second side 12 which are oppositely arranged. The movable window sash 2 is movably arranged on the window frame 1 so as to be opened or closed relative to the window frame 1. The first pulley 3 is fixedly arranged on the first side 11. Second side 12 is all located to second pulley 4, third pulley 5, and third pulley 5 and second pulley 4 interval set up. The traction piece 6 is fixedly connected to the movable window sash 2, one end of the traction piece 6 is wound on the second pulley 4, and the other end of the traction piece 6 is fixedly connected to the movable window sash 2 and is sequentially wound on the first pulley 3 and the third pulley 5. The pulling member 6 is used for driving the movable window sash 2 to slide back and forth along the direction of the second side 12 and the first side 11 to expose or cover the window opening.
That is, the first pulley 3 and the second pulley 4 are respectively located at the left and right sides of the window frame 1, and the movable sash 2 is located between the first pulley 3 and the second pulley 4. One end of the traction piece 6 winds around the second pulley 4 arranged on the second side 12, and the other end extends towards the first side 11, is fixedly connected with the movable window sash 2, winds around the periphery of the first pulley 3 arranged on the first side 11, finally turns by the first pulley 3, and winds around the periphery of the third pulley 5 arranged on the second side 12. Because the middle part of the traction piece 6 is fixedly connected to the movable window sash 2, the movable window sash 2 can be driven to transversely slide towards the left side and the right side of the window frame 1 by pulling the traction piece 6 to wind the two ends of the second pulley 4 and the third pulley 5, for example, when the traction piece 6 is pulled to wind one end of the second pulley 4, the movable window sash 2 can slide from the first side 11 to the second side 12 of the window frame 1, and the movable window sash can be exposed out of the window opening to discharge smoke and ventilate. When the movable window sash 2 is required to cover the window opening, the traction piece 6 can be pulled to wind at one end of the third pulley 5, so that the movable window sash 2 slides from the second side 12 to the first side 11 of the window frame 1, the movable window sash 2 covers the window opening, and rain and wind prevention can be realized.
It can be understood that the smoke exhaust window is arranged at the top of a building or at the high position of an outer wall, and two ends of the traction piece 6 are wound around the peripheries of the second pulley 4 and the third pulley 5 and can be dropped to the lower part of the building, so that a user can pull the smoke exhaust window conveniently. In addition, it is worth to explain that the smoke exhausting window can be used independently or matched with an automatic opening device.
According to the smoke exhaust window provided by the embodiment of the utility model, the traction piece 6 is arranged, one end of the traction piece 6 is wound on the second pulley 4, the other end of the traction piece 6 is fixedly connected to the movable window sash 2 and then is rotated to be wound on the periphery of the first pulley 3 through the first pulley 3, so that when a user needs to open the movable window sash 2 to exhaust smoke, the traction piece 6 can be manually pulled to be wound on one end of the second pulley 4 (or wound on the other end of the third pulley 5), then the movable window sash 2 fixedly connected with the traction piece 6 is driven to slide to expose a window hole along the direction of the second side 12, and when the movable window sash 2 needs to be closed, the traction piece 6 can be manually pulled to be wound on the other end of the third pulley 5 (or wound on one end of the second pulley 4), and the movable window sash 2 is driven to slide to cover the window hole along the direction of the first side 11. The smoke exhaust window is simple in structure, simple in operation and convenient for user operation, and the movable window sash 2 can be opened and closed manually.
In some embodiments, the first pulley 3, the second pulley 4, and the third pulley 5 may be selected from pulleys of a uniform size. The second pulley 4 and the third pulley 5 are arranged close to each other, and the second pulley 4 and the third pulley 5 are arranged along the vertical direction Y in a staggered mode. It will be appreciated that the second pulley 4 and the third pulley 5 are arranged offset, i.e. the second pulley 4 and the third pulley 5 are at different heights in the vertical direction Y, for example, the second pulley 4 may be arranged directly above the third pulley 5, or the third pulley 5 may be arranged directly above the second pulley 4. Like this, first pulley 3, second pulley 4 and third pulley 5 three are not located same straight line to avoid drawing a 6 and connecting in first pulley 3 and second pulley 4, the in-process of third pulley 5, touch the pulley that closes on, lead to the influence to stimulate the condition of drawing a 6, conveniently be used for the operation. In addition, as can be seen from the foregoing, when the pulling member 6 is wound around one end of the second pulley 4, the movable window sash 2 slides from the first side 11 to the second side 12 to open the window and expose the window opening, and when the pulling member 6 is wound around one end of the third pulley 5, the movable window sash 2 slides from the second side 12 to the first side 11 to close the window and cover the window opening, so that the second pulley 4 and the third pulley 5 are arranged in a staggered manner, the user can conveniently recognize the second pulley 4 and the third pulley 5, the user can conveniently open or close the window, and misoperation is prevented.
In some embodiments, since the traction member 6 connected between the first pulley 3 and the second pulley 4 is fixedly connected to the movable window sash 2, in order to facilitate the connection between the traction member 6 and the movable window sash 2, the smoke exhaust window may further include a connection member 7, the connection member 7 is disposed on the movable window sash 2, and the other end of the traction member 6 is fixedly connected to the movable window sash 2 through the connection member 7. It can be understood that the movable window sash 2 mainly comprises a movable window frame and glass, and the connecting part 7 is mainly fixedly connected to the movable window frame of the movable window sash 2 when fixedly connected to the movable window sash 2, so as to avoid the problems of light interference and inconvenient fixation caused by being arranged on the glass.
Referring to fig. 2, further, the connecting member 7 has a first connecting portion 71 and a second connecting portion 72 connected to the first connecting portion 71, the first connecting portion 71 is fixedly connected to the movable window sash 2, the second connecting portion 72 is perpendicular to the movable window sash 2, at least one opening 73 is formed in the second connecting portion 72, and the other end of the pulling member 6 penetrates through the opening 73 and is fixedly connected to the second connecting portion 72. That is, the second connecting portion 72 may be a plate-shaped structure having an opening 73, or may be a circular ring, and the pulling member 6 may pass through the opening 73 formed in the second connecting portion 72 and be tied to the second connecting portion 72, or may be fastened to the second connecting portion 72 by a movable fastener provided on the pulling member 6. It will be understood that in other embodiments, the connecting member 7 may be a cylindrical member with a diameter gradually decreasing toward the movable window sash 2, and the pulling member 6 is wound around the outer circumference of the connecting member 7 and tied to the second connecting portion 72.
The connecting member 7 is located between the first pulley 3 and the second pulley 4 in the horizontal direction X, and preferably, the distance d2 from the connecting member 7 to the bottom of the movable window sash 2 in the vertical direction Y is greater than or equal to the distance d1 from the first pulley 3 to the bottom of the movable window sash 2. When the second pulley 4 is located above the third pulley 5, and the axis of the second pulley 4 and the axis of the first pulley 3 are located at the same horizontal height, the connecting member 7 may also be located at the same height as the movable window sash 2, so that the traction member 6 connected between the second connecting portion 72 and the first pulley 3, and the traction member 6 connected between the second connecting portion 72 and the first connecting portion 71 are in a state of being approximately horizontal, and when a user pulls the traction member 6 to drive the movable window sash 2 to slide laterally, an included angle between a direction of a pulling force applied to the movable window sash 2 and a sliding direction of the movable window sash 2 approaches zero, which is more labor-saving. When the second pulley 4 is higher or lower than the first pulley 3, the connecting part 7 can also be higher than the first pulley 3, so that when a user pulls the traction part 6 downwards, the connecting part 7 can share the downward pulling force applied to the first pulley 3 and the second pulley 4, and the first pulley 3 and the second pulley 4 are prevented from being damaged due to overlarge stress.
Referring to fig. 1 and 3, in some embodiments, the number of the movable sashes 2 is multiple, the movable sashes 2 are arranged at intervals along a direction from the first side 11 to the second side 12, the smoke exhaust window further includes a support member 8, the support member 8 is arranged on the window frame 1 and located between two adjacent movable sashes 2, and the support member 8 is used for supporting the traction member 6. It will be appreciated that the frame 1 divides the opening into a plurality of zones, and the movable sash 2 is movable in the respective zones. However, since the number of the movable sashes 2 is large, the span of the traction member 6 connected between the first pulley 3 and the third pulley 5 is large, and is influenced by gravity, the middle portion of the traction member 6 connected between the first pulley 3 and the third pulley 5 may droop, and the traction member 6 wound around the periphery of the third pulley 5 may be pulled, so that a user cannot touch the other end of the traction member 6, and may also be influenced by wind when the movable sashes 2 are opened, so that the traction member 6 connected between the first pulley 3 and the third pulley 5 may sway, collide onto the movable sashes 2, and even separate from the first pulley 3 and the third pulley 5, and therefore, the support member 8 is disposed on the window frame 1 between two adjacent movable sashes 2, and the traction member 6 with a long span is divided into multiple segments, thereby preventing the situation that the use is seriously influenced by the drooping 6.
Further, in the vertical direction Y, a distance d3 from the support member 8 to the bottom of the window frame 1 is greater than or equal to a distance d1 from the first pulley 3 to the bottom of the window frame 1, and the support member 8 is a hook or a loop. That is, the supporting member 8 is higher than the first pulley 3, and the hook or the hanging ring is selected as the supporting member 8, so that the traction piece 6 can be supported on one hand, and the traction piece 6 can be prevented from sliding down the supporting member 8 in the pulling process on the other hand.
In addition to being used for smoke exhaust in case of fire, the smoke exhaust window can also be used for ventilation and lighting in daily life, so in some embodiments, the smoke exhaust window further comprises a fixed window sash 9, the fixed window sash 9 is fixedly arranged on the window frame 1, and the movable window sash 2 can slide along the window frame 1 to be at least partially overlapped with the fixed window sash 9. By arranging the fixed window sash 9, the area of the opened window hole is increased, and indoor lighting is facilitated.
In some embodiments, the traction element 6 is a fire-resistant rope or chain. Wherein, the fireproof rope can be a fireproof fiber rope and a steel wire rope. Choose for use fire prevention rope and chain as to pull 6, when can avoiding the conflagration to take place, pull 6 and be burnt, and can't stimulate movable sash 2.
In a second aspect, the utility model discloses a building comprising the smoke evacuation window.
It can be understood that when the building can be a multi-storey building, the smoke exhaust window can be arranged at the high position of the outer wall of each storey, and when the building is a single-storey building, the smoke exhaust window can be arranged at the top or the high position of the outer wall of the building, so that indoor smoke can be exhausted outdoors when a fire occurs.
The smoke exhaust window disclosed by the embodiment of the utility model and the building with the smoke exhaust window are described in detail, the principle and the implementation mode of the utility model are explained by applying specific examples, and the description of the embodiment is only used for helping to understand the smoke exhaust window, the building with the smoke exhaust window and the core ideas of the smoke exhaust window; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. An exhaust window, characterized in that, exhaust window is used for installing in the window hole department of building, exhaust window includes:
the window frame is used for being installed at a window opening of the building and is provided with a first side and a second side which are oppositely arranged;
the movable window sash is movably arranged on the window frame;
the first pulley is fixedly arranged on the first side;
the second pulley is arranged on the second side;
the third pulley is arranged on the second side and is arranged at an interval with the second pulley; and
the traction piece is fixedly connected to the movable window sash, one end of the traction piece is wound on the second pulley, and the other end of the traction piece is fixedly connected to the movable window sash and is sequentially wound on the first pulley and the third pulley; the traction piece is used for driving the movable window sash to slide in a reciprocating mode along the directions of the second side and the first side so as to expose or cover the window hole.
2. The smoke exhaust window according to claim 1, wherein the second pulley and the third pulley are arranged adjacently, and the second pulley and the third pulley are arranged in a staggered manner in the vertical direction.
3. The smoke exhaust window according to claim 2, further comprising a connecting member, wherein the connecting member has a first connecting portion and a second connecting portion connected with the first connecting portion, the first connecting portion is fixedly connected to the movable sash, the second connecting portion is perpendicular to the movable sash, the second connecting portion is provided with at least one opening, and the other end of the traction member penetrates through the opening and is fixedly connected to the second connecting portion.
4. The smoke exhaust window according to claim 3, wherein the distance from the connecting member to the bottom of the movable sash in the vertical direction is greater than or equal to the distance from the first pulley to the bottom of the movable sash.
5. The smoke exhaust window according to claim 1, wherein the number of the movable window sashes is multiple, and the multiple movable window sashes are arranged at intervals along the direction from the first side to the second side;
the smoke exhaust window further comprises a supporting part, the supporting part is arranged on the window frame and located between the two adjacent movable window sashes, and the supporting part is used for supporting the traction piece.
6. The smoke exhaust window according to claim 5, wherein the distance from the support member to the bottom of the window frame in the vertical direction is greater than or equal to the distance from the first pulley to the bottom of the window frame.
7. An extractor window according to claim 5, wherein the support member is a hook or a loop.
8. An extractor hood window according to any of the claims 1-7, further comprising a stationary sash, said stationary sash being fixedly arranged to said frame, said movable sash being slidable along said frame to at least partially coincide with said stationary sash.
9. An extractor window according to any of claims 1 to 7, wherein the pulling element is a fire rope or a chain.
10. A building comprising a smoke evacuation window according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122721251.7U CN216406571U (en) | 2021-11-08 | 2021-11-08 | Smoke exhaust window and building with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122721251.7U CN216406571U (en) | 2021-11-08 | 2021-11-08 | Smoke exhaust window and building with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216406571U true CN216406571U (en) | 2022-04-29 |
Family
ID=81301242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122721251.7U Active CN216406571U (en) | 2021-11-08 | 2021-11-08 | Smoke exhaust window and building with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216406571U (en) |
-
2021
- 2021-11-08 CN CN202122721251.7U patent/CN216406571U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203201358U (en) | Electric window capable of being opened | |
| US20100000691A1 (en) | Roll-up shutter with tiltable slots | |
| CN113153106B (en) | Fireproof window and installation method thereof | |
| CN216406571U (en) | Smoke exhaust window and building with same | |
| CN104667441B (en) | Folding escape box for storied building | |
| KR101646497B1 (en) | Lifting device for rescue of human | |
| CN115068864B (en) | Energy storage device for solar photovoltaic microgrid | |
| CN203097654U (en) | Fireproof window curtain | |
| CN211059873U (en) | High building exterior wall body illumination lamp convenient to maintenance | |
| CN212027609U (en) | Rolling door with windproof structure | |
| CN209662487U (en) | A kind of high-performance glass smoke-proof pendant wall | |
| CN203308348U (en) | Shutter | |
| CN212362392U (en) | Lifting smoke exhaust window and smoke exhaust system | |
| CN114470540B (en) | High-rise lifting escape device | |
| CN214997249U (en) | Fire window capable of being automatically closed | |
| CN213233957U (en) | Steel construction dormer of adjustable luminance | |
| CN217518513U (en) | Folding door of high-rise fire life saving device | |
| CN218607785U (en) | Distance-adjustable roller shutter device of smoke-blocking vertical wall | |
| CN209704442U (en) | A kind of electric opening anti-theft net | |
| CN213330744U (en) | But remote control's foldable fire prevention rolling slats door | |
| CN220336767U (en) | Fire control unit for building automation | |
| CN210828985U (en) | Escape safety window | |
| CN216476955U (en) | Can supply suspended window of switching | |
| CN216336002U (en) | Safe high-rise building elevator | |
| CN209429409U (en) | A kind of building open roof construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |