Automatic fire and smoke damper shutter

Abstract

The utility model discloses an automatic fire control smoke exhaust shutter, including window frame, the window frame both sides are equipped with the communicating groove, and the both sides communicating groove are rotatably connected with a plurality of groups of rotating shafts, the rotating shaft outside fixedly connected with the fan blade, the rotating shaft middle part outside fixedly connected with the connecting gear, the window frame inside middle side fixedly connected with the isolation frame, the connecting gear outside is connected with the rack and engages, the rack middle part both sides fixedly connected with the ear, the isolation frame lower side inside fixedly connected with the mounting panel, the mounting panel with isolation frame inside fixedly connected with the lifting rod, the lifting rod sliding connection in one side ear inside, the other side ear inside screw thread connection has the threaded rod, the mounting panel lower part one side fixedly connected with motor, motor power end fixedly connected with with threaded rod fixed connection, the window frame inside fixedly connected with temperature sensor, can open the shutter to the maximum angle automatically when the fire, improve fire control smoke exhaust effect.

Description

Technical Field

[0001] This utility model relates to the field of louver technology, specifically an automatic fire-fighting smoke exhaust louver. Background Technology

[0002] A venetian blind is a window device consisting of multiple parallel slats (or "louvers") installed in a window frame or vent. It provides ventilation, lighting, sun shading, and privacy by adjusting the angle of the slats. Its structure typically includes a frame and slats. The slats can rotate around their own axis, and the opening and closing angle can be adjusted manually or electrically, or even completely closed or opened.

[0003] Existing louvers primarily function to allow air in, resulting in extremely poor smoke extraction. They cannot automatically switch between opening and closing. In the early stages of a fire, when the gas temperature is low and the amount of smoke is small, a fully open louver may cause a large influx of cold outdoor air, which could exacerbate the spread of the fire. As the fire expands, a fixed opening angle is insufficient to meet the demand for rapid smoke extraction, thus reducing smoke extraction efficiency. Utility Model Content

[0004] The purpose of this invention is to provide an automatic fire-fighting smoke exhaust louver to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic fire-fighting smoke exhaust louver, comprising a window frame, with connecting grooves on both sides of the window frame, and a plurality of rotating shafts rotatably connected between the two connecting grooves. Fan blades are fixedly connected to the outer side of each rotating shaft, and a connecting gear is fixedly connected to the outer side of the middle portion of each rotating shaft. An isolation frame is fixedly connected to the inner side of the window frame, and the connecting gear is disposed inside the isolation frame. A rack is meshed with the outer side of the connecting gear, and lugs are fixedly connected to both sides of the middle portion of the rack. A mounting plate is fixedly connected to the lower inner side of the isolation frame, and a lifting rod is fixedly connected to the mounting plate and the inner side of the isolation frame. The lifting rod is slidably connected to the lug on one side, and a threaded rod is threadedly connected to the lug on the other side. The threaded rod is rotatably connected to the mounting plate and the inner side of the isolation frame. A motor is fixedly connected to one side of the lower part of the mounting plate, and the power end of the motor is fixedly connected to the threaded rod. A temperature sensor is fixedly connected inside the window frame, and the temperature sensor is disposed between the lower part of the mounting plate and the inner side of the isolation frame.

[0006] Preferably, a filter door facing the motor and temperature sensor is connected to a pivot on the lower part of one side of the window frame, and several sets of ventilation holes are opened on the lower part of the other side of the window frame.

[0007] Preferably, the window frame has an internal mounting groove facing the ventilation hole, and a mounting bracket is threaded into the mounting groove. A filter screen is fixedly connected to one side of the mounting bracket.

[0008] Preferably, an extension plate is fixedly connected to the upper part of the rack, a fixing plate is fixedly connected to the upper part of the extension plate through the isolation frame, several sets of blocking rods are fixedly connected to both sides of the fixing plate, the lower part of the blocking rods penetrates to the connecting groove, and a water inlet pipe is fixedly connected to one side of the upper part of the window frame.

[0009] Preferably, the plug rod is made of rubber.

[0010] Preferably, a liquid level sensor is fixedly connected inside the window frame near the water inlet pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a temperature sensor to sense temperature changes, thereby controlling the operation of the motor. The motor drives the threaded rod, which moves up and down along the lifting rod through the lug, thereby causing the rack to drive the connecting gear to block, and thus driving the fan blade to rotate through the rotating shaft, controlling the opening area of ​​the connecting groove. It can automatically control the opening and closing of the louvers according to the temperature in the room, and can automatically open the louvers to the maximum angle in the event of a fire, improving the fire smoke exhaust effect. 2. This utility model also injects cooling water into the space outside the window frame and the isolation frame through the water inlet pipe. When the temperature sensor detects that the temperature has reached its limit, the rack drives the fixing plate to move to the top, and the blocking rod disengages from the upper edge of the connecting groove, so that water can flow into the fan blades, thereby improving the fire resistance of the louvers. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional view of the present invention; Figure 3 This is a three-dimensional structural cross-sectional view of the present invention; Figure 4 This is an enlarged view of the structure at point A of this utility model; Figure 5 This is an enlarged view of the structure at point B of this utility model.

[0013] In the diagram: 1. Window frame; 2. Connecting groove; 3. Rotating shaft; 4. Fan blade; 5. Connecting gear; 6. Rack; 7. Connecting lug; 8. Isolation frame; 9. Mounting plate; 10. Motor; 11. Threaded rod; 12. Lifting rod; 13. Temperature sensor; 14. Filter door; 15. Vent hole; 16. Mounting groove; 17. Mounting bracket; 18. Filter screen; 19. Extension plate; 20. Fixing plate; 21. Blocking rod; 22. Water inlet pipe; 23. Liquid level sensor Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-5 This utility model provides a technical solution: an automatic fire-fighting smoke exhaust louver, including a window frame 1, with connecting grooves 2 on both sides of the window frame 1, and several sets of rotating shafts 3 rotatably installed between the two connecting grooves 2. Fan blades 4 are fixedly welded to the outer side of the rotating shafts 3, and a connecting gear 5 is fixedly welded to the outer side of the middle of the rotating shafts 3. An isolation frame 8 is fixedly welded to the middle side of the window frame 1, and the connecting gear 5 is disposed inside the isolation frame 8. A rack 6 is meshed with the outer side of the connecting gear 5, and lugs 7 are fixedly welded to both sides of the middle of the rack 6. A mounting plate 9 is fixedly welded to the lower inner side of the isolation frame 8, and a lifting rod 12 is fixedly welded to the mounting plate 9 and the inner side of the isolation frame 8. The lifting rod 12 is slidably installed inside one lug 7, and a threaded rod is threadedly installed inside the other lug 7. 11. The threaded rod 11 is rotatably connected to the mounting plate 9 and the interior of the isolation frame 8. A motor 10 is installed on the flange on one side of the lower part of the mounting plate 9. The power end of the motor 10 is fixedly welded to the coupling connected to the threaded rod 11. The motor 10 drives the threaded rod 11 to move up and down along the lifting rod 12 through the lug 7, thereby causing the rack 6 to drive the connecting gear 5 to block, thereby driving the fan blade 4 to rotate through the rotating shaft 3, controlling the opening area of ​​the connecting groove 2. A temperature sensor 13 is threadedly installed inside the window frame 1. The temperature sensor 13 is set between the lower part of the mounting plate 9 and the interior of the isolation frame 8. The temperature sensor 13 is wired to the motor 10. The temperature sensor 13 senses the temperature change, thereby controlling the operation of the motor 10 and realizing the change of the opening surface of the connecting groove 2. A filter door 14 is installed on the lower part of one side of the window frame 1, facing the motor 10 and the temperature sensor 13. Several sets of ventilation holes 15 are opened on the lower part of the other side of the window frame 1. The air temperature enters the interior of the window frame 1 along the filter door 14, which facilitates the contact of hot air with the temperature sensor 13, so that the temperature sensor 13 can sense the temperature change. The air is then discharged through the ventilation holes 15. The filter door 14 can be opened to inspect the internal motor 10 and temperature sensor 13, and can prevent impurities from entering the interior of the window frame 1. It also ensures that there is a certain amount of air circulation at the motor 10, and prevents the sealed space from overheating and affecting the service life of the motor 10. The window frame 1 has an installation groove 16 facing the ventilation hole 15 inside. A mounting bracket 17 is threaded inside the installation groove 16. A filter screen 18 is fixedly welded to one side of the mounting bracket 17. A removable filter screen 18 is added to the ventilation hole 15 to prevent impurities from entering the window frame 1. An extension plate 19 is fixedly welded to the upper part of the rack 6. The upper part of the extension plate 19 penetrates the isolation frame 8 and is fixedly welded to a fixed plate 20. Several sets of blocking rods 21 are fixedly welded to both sides of the fixed plate 20. The lower part of the blocking rods 21 penetrates to the connecting groove 2. A water inlet pipe 22 is fixedly welded to one side of the upper part of the window frame 1. When the fixed plate 20 moves to the uppermost position, the blocking rods 21 are completely inserted into the interior of the window frame 1. Cooling water is injected into the space outside the window frame 1 and the isolation frame 8 through the water inlet pipe 22. When the cooling water reaches the upper edge of the connecting groove 2, the blocking rods 21 block the upper edge of the connecting groove 2. Water continues to be injected to fill the interior space with cooling water. When the temperature sensor 13 senses that the temperature has reached the limit, the rack 6 drives the fixed plate 20 to move to the uppermost position. The blocking rods 21 are disengaged from the upper edge of the connecting groove 2, allowing water to flow into the fan blades 4, realizing the fireproof cooling function. The water inlet pipe 22 is connected to the external water tank, and the fireproof function is achieved through continuous water supply. The plug rod 21 is made of rubber to improve the sealing between the plug rod 21 and the upper edge of the connecting groove 2, preventing water from flowing out along the upper edge of the connecting groove 2 under normal circumstances. A liquid level sensor 23 is threadedly installed inside the window frame 1 on the side near the water inlet pipe 22. The liquid level sensor 23 senses the change in liquid level inside the window frame 1, thereby controlling the water inlet pipe 22 to replenish water. The liquid level sensor 23 is installed on the upper side inside the window frame 1, which facilitates the electrical connection of the liquid level sensor 23 circuit through the window frame 1 along the inside of the wall to the water pump in the water tank.

[0016] Working principle: When in use, the temperature sensor 13 senses the temperature change and controls the motor 10 to work. The motor 10 drives the threaded rod 11, which moves up and down along the lifting rod 12 through the lug 7. This causes the rack 6 to drive the connecting gear 5 to block, thereby driving the fan blade 4 to rotate through the rotating shaft 3 and controlling the opening area of ​​the connecting groove 2. Cooling water is injected into the space outside the window frame 1 and the isolation frame 8 through the water inlet pipe 22. When the temperature sensor 13 senses that the temperature has reached its limit, the rack 6 drives the fixing plate 20 to move to the top, and the blocking rod 21 disengages from the upper edge of the connecting groove 2, so that water can flow into the fan blade 4, thereby improving the fire resistance of the louver.

[0017] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic fire-fighting smoke exhaust louver, comprising a window frame (1), characterized in that: The window frame (1) has connecting slots (2) on both sides, and several sets of rotating shafts (3) are rotatably connected between the connecting slots (2) on both sides. Fan blades (4) are fixedly connected to the outer side of the rotating shafts (3), and connecting gears (5) are fixedly connected to the outer side of the middle part of the rotating shafts (3). An isolation frame (8) is fixedly connected to the middle side of the window frame (1). The connecting gears (5) are located inside the isolation frame (8). A rack (6) is meshed with the outer side of the connecting gears (5). Lugs (7) are fixedly connected to both sides of the middle part of the rack (6). A mounting plate (9) is fixedly connected to the lower inside of the isolation frame (8). A lifting rod (12) is fixedly connected to the interior of the isolation frame (8). The lifting rod (12) is slidably connected to the interior of one side lug (7). A threaded rod (11) is threadedly connected to the interior of the other side lug (7). The threaded rod (11) is rotatably connected to the interior of the mounting plate (9) and the isolation frame (8). A motor (10) is fixedly connected to one side of the lower part of the mounting plate (9). The power end of the motor (10) is fixedly connected to the threaded rod (11). A temperature sensor (13) is fixedly connected inside the window frame (1). The temperature sensor (13) is located between the lower part of the mounting plate (9) and the interior of the isolation frame (8).

2. The automatic fire-fighting smoke exhaust louver according to claim 1, characterized in that: The lower part of one side of the window frame (1) is connected to a filter door (14) facing the motor (10) and temperature sensor (13), and the lower part of the other side of the window frame (1) is provided with several sets of ventilation holes (15).

3. An automatic fire-fighting smoke exhaust louver according to claim 2, characterized in that: The window frame (1) has an installation groove (16) facing the ventilation hole (15) inside. The installation groove (16) is threaded with a mounting bracket (17), and a filter screen (18) is fixedly connected to one side of the mounting bracket (17).

4. An automatic fire-fighting smoke exhaust louver according to claim 1, characterized in that: An extension plate (19) is fixedly connected to the upper part of the rack (6). The upper part of the extension plate (19) penetrates the isolation frame (8) and is fixedly connected to a fixing plate (20). Several sets of blocking rods (21) are fixedly connected to both sides of the fixing plate (20). The lower part of the blocking rods (21) penetrates to the connecting groove (2). A water inlet pipe (22) is fixedly connected to one side of the upper part of the window frame (1).

5. An automatic fire-fighting smoke exhaust louver according to claim 4, characterized in that: The plug rod (21) is made of rubber.

6. An automatic fire-fighting smoke exhaust louver according to claim 4, characterized in that: A liquid level sensor (23) is fixedly connected inside the window frame (1) on the side near the water inlet pipe (22).

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