Smoke prevention and exhaust mechanism for building fire protection engineering

Abstract

The utility model relates to the technical field of building fire protection, and discloses a building fire protection engineering smoke prevention and exhaust mechanism which comprises a fixing frame, an outer pipeline, an inner pipeline and an adjusting assembly, the outer pipeline is welded to the bottom of the fixing frame, the inner pipeline is installed in the outer pipeline, and the adjusting assembly is arranged outside the outer pipeline; the movable frame and the adjusting assembly comprise a motor and rotating rods, the movable frame is installed at the bottom end of the inner pipeline and located outside the outer pipeline, the two rotating rods are installed between the bottom of the fixed frame and the top of the movable frame, and the motor is fixedly installed at the bottom of the fixed frame in an inverted mode and located on the front side of the outer pipeline. According to the smoke prevention and exhaust mechanism for the building fire engineering, the motor drives the driving wheel to rotate and drives the fluted disc and the annular sliding block to rotate in the annular sliding groove of the outer pipeline, then the driven wheel drives the two rotating rods to rotate, and threads on the rotating rods are matched with the sliding block, so that the sliding block moves up and down on the rotating rods.

Description

Technical Field

[0001] The utility model relates to the technical field of building fire protection, in particular to a smoke prevention and exhaust mechanism for a building fire protection project. Background Art

[0002] The smoke protection and exhaust system in building fire protection engineering is a vital safety facility, commonly found in various high-rise buildings, commercial complexes and industrial plants.

[0003] The main function of these systems is to promptly remove smoke when a fire occurs, ensure that the evacuation routes are unobstructed, and provide a clear rescue environment for firefighters. However, traditional smoke prevention and exhaust mechanisms are mostly fixed in design and difficult to flexibly adjust according to the actual situation at the fire scene. In particular, when the height of different floors or the speed of fire spread changes, the smoke exhaust effect may be subject to certain limitations. Therefore, a building fire engineering smoke prevention and exhaust mechanism is proposed to solve the above-mentioned problems. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the deficiencies in the existing technology, the utility model provides a smoke prevention and exhaust mechanism for building fire protection engineering, which has the advantages of adjustable height and high smoke exhaust efficiency, and solves the problem that the traditional mechanism has limited smoke exhaust effect at the fire scene.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A smoke exhaust mechanism for a building fire protection project comprises a fixing frame, an outer pipe, an inner pipe and an adjustment assembly, wherein the outer pipe is welded to the bottom of the fixing frame, the inner pipe is installed inside the outer pipe, and the adjustment assembly is arranged outside the outer pipe;

[0009] The movable frame and adjustment assembly include a motor and a rotating rod. The movable frame is installed at the bottom end of the inner pipe and is located outside the outer pipe. Two rotating rods are provided and are both installed between the bottom of the fixed frame and the top of the movable frame. The motor is inverted and fixed at the bottom of the fixed frame and is located on the front side of the outer pipe.

[0010] As a preferred technical solution of the present invention, a sliding ring is welded on the top of the inner pipe, and is slidingly connected to the inner wall of the inner pipe through the sliding ring, and the bottom end of the inner pipe passes through the bottom of the outer pipe.

[0011] As a preferred technical solution of the present invention, the movable frame is welded to the bottom of the inner pipe, a through hole is opened in the middle thereof, and a smoking device is installed thereon. The diameter of the movable frame is larger than the diameter of the outer pipe.

[0012] As an optimal technical solution of the present invention, the two rotating rods are symmetrically distributed on both sides of the outer pipe. Bearings are fixedly installed at both ends of the two rotating rods and are rotatably connected to the fixed frame and the movable frame respectively through the bearings.

[0013] As an optimal technical solution of the present invention, a driving wheel is bolted to the output end of the motor, a gear disc is engaged on the outside of the driving wheel, an annular slider is provided on the inner wall of the gear disc, and an annular groove is provided on the outer wall of the outer pipe near the top, and is rotatably connected to the annular slider through the annular groove.

[0014] As an optimal technical solution of the present invention, driven wheels are engaged on both sides of the gear disk, and the middle parts of the two driven wheels are respectively plugged into two rotating rods and fixed with bolts. The outside of the two rotating rods, located between the bottom of the driven wheel and the top of the movable frame, is provided with a thread, and a slider is threadedly connected.

[0015] As a preferred technical solution of the present invention, one end of two L-shaped connecting rods are welded to one side of the two sliders away from each other, and the other ends of the two L-shaped connecting rods are respectively fixed with bolts on both sides of the movable frame.

[0016] (3) Beneficial effects

[0017] Compared with the existing technology, the utility model provides a smoke prevention and exhaust mechanism for building fire protection engineering, which has the following beneficial effects:

[0018] The smoke prevention and exhaust mechanism of the building fire protection project uses a motor to drive the driving wheel to rotate, driving the gear plate and the annular slider to rotate in the annular slide groove of the outer pipe, and then drives the two rotating rods to rotate through the driven wheel. The threads on the rotating rod cooperate with the slider, allowing the slider to move up and down on the rotating rod, and push the movable frame and the inner pipe to rise and fall through the L-shaped connecting rod. This design effectively solves the problem that traditional smoke prevention and exhaust mechanisms are highly fixed and difficult to adapt to the needs of different fire scenes, realizes the maximization of smoke exhaust efficiency, and improves the overall safety performance of the building fire protection project. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic structural diagram of the bottom portion of the fixing frame of the utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the interior of the outer pipe and the inner pipe of the utility model.

[0022] In the figure: 1. Fixed frame; 2. Outer pipe; 3. Inner pipe; 4. Movable frame; 5. Smoking device; 6. Motor; 7. Driving wheel; 8. Gear plate; 9. Ring slider; 10. Driven wheel; 11. Rotating rod; 12. Bearing; 13. Sliding block; 14. L-shaped connecting rod; 15. Sliding ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0026] See also Figure 1-3 A smoke exhaust mechanism for a building fire protection project includes a fixing frame 1, an outer pipe 2, an inner pipe 3 and an adjustment component. The outer pipe 2 is welded to the bottom of the fixing frame 1, the inner pipe 3 is installed inside the outer pipe 2, and the outer pipe 2 is provided with an adjustment component.

[0027] The movable frame 4 and the adjustment assembly include a motor 6 and a rotating rod 11. The movable frame 4 is installed at the bottom end of the inner pipe 3 and is located outside the outer pipe 2. Two rotating rods 11 are provided and are both installed between the bottom of the fixed frame 1 and the top of the movable frame 4. The motor 6 is inverted and fixed at the bottom of the fixed frame 1 and is located on the front side of the outer pipe 2.

[0028] In this embodiment, a sliding ring 15 is welded to the top of the inner pipe 3 , and the inner pipe 3 is slidably connected to the inner wall of the inner pipe 3 through the sliding ring 15 . The bottom end of the inner pipe 3 passes through the bottom of the outer pipe 2 .

[0029] It should be noted that the design of the sliding ring 15 not only ensures that the inner pipe 3 can move vertically smoothly in the outer pipe 2, but also enhances the stability of the inner pipe 3 during the movement.

[0030] In this embodiment, the movable frame 4 is welded to the bottom of the inner pipe 3 , and a through hole is opened in the middle thereof, and a smoke extraction device 5 is installed thereon. The diameter of the movable frame 4 is larger than the diameter of the outer pipe 2 .

[0031] It should be noted that the movable frame 4 serves as the bottom supporting structure of the inner pipe 3 , and its diameter is designed to be larger than the outer pipe 2 , ensuring that the movable frame 4 does not interfere with the outer pipe 2 during movement.

[0032] In this embodiment, the two rotating rods 11 are symmetrically distributed on both sides of the outer pipe 2. Bearings 12 are fixedly installed at both ends of the two rotating rods 11 and are rotatably connected to the fixed frame 1 and the movable frame 4 respectively through the bearings.

[0033] In this embodiment, the output end of the motor 6 is bolted to a driving wheel 7, a gear disc 8 is engaged on the outside of the driving wheel 7, an annular slider 9 is provided on the inner wall of the gear disc 8, and an annular groove is provided on the outer wall of the outer pipe 2 near the top, and is rotatably connected to the annular slider 9 through the annular groove.

[0034] It should be noted that the motor 6 drives the driving wheel 7 to rotate, thereby driving the gear plate 8 and the annular slider 9 to rotate in the annular slide groove.

[0035] In this embodiment, driven wheels 10 are engaged on both sides of the gear disc 8, and the middle parts of the two driven wheels 10 are respectively plugged into two rotating rods 11 and fixed with bolts. The outside of the two rotating rods 11, located between the bottom of the driven wheel 10 and the top of the movable frame 4, is provided with a thread, and a slider 13 is threadedly connected.

[0036] It should be noted that the engagement of the driven wheel 10 with the toothed disc 8 realizes the transmission of power, so that the rotating rod 11 can rotate with the rotation of the toothed disc 8, and the threaded design on the rotating rod 11 enables the slider 13 to move up and down on it. This threaded connection mechanism has a self-locking function, which can keep the height position of the movable frame 4 and the inner pipe 3 unchanged when the motor stops working.

[0037] In this embodiment, one end of two L-shaped connecting rods 14 are welded to the side of the two sliders 13 away from each other, and the other ends of the two L-shaped connecting rods 14 are fixed with bolts on both sides of the movable frame 4 respectively.

[0038] It should be noted that the structure of the L-shaped connecting rod 14 also ensures that the slider 13 can smoothly push the movable frame 4 up and down when moving.

[0039] Beneficial effects

[0040] The smoke prevention and exhaust mechanism of the building fire protection engineering drives the driving wheel 7 to rotate through the motor 6, driving the gear plate 8 and the annular slider 9 to rotate in the annular slide groove of the outer pipe 2, and then drives the two rotating rods 11 to rotate through the driven wheel 10. The threads on the rotating rod 11 cooperate with the slider 13, so that the slider 13 moves up and down on the rotating rod, and pushes the movable frame 4 and the inner pipe 3 to rise and fall through the L-shaped connecting rod 14. This design effectively solves the problem that the traditional smoke prevention and exhaust mechanism is highly fixed and difficult to adapt to the needs of different fire scenes, realizes the maximization of smoke exhaust efficiency, and improves the overall safety performance of the building fire protection engineering.

[0041] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smoke exhaust mechanism for a building fire protection project, comprising a fixing frame (1), an outer pipe (2), an inner pipe (3) and an adjusting assembly, wherein the outer pipe (2) is welded to the bottom of the fixing frame (1), the inner pipe (3) is installed inside the outer pipe (2), and the adjusting assembly is provided outside the outer pipe (2); Its characteristics are: The movable frame (4) and the adjustment assembly include a motor (6) and a rotating rod (11). The movable frame (4) is installed at the bottom end of the inner pipe (3) and is located outside the outer pipe (2). Two rotating rods (11) are provided and are both installed between the bottom of the fixed frame (1) and the top of the movable frame (4). The motor (6) is fixedly installed upside down at the bottom of the fixed frame (1) and is located on the front side of the outer pipe (2).

2. A smoke prevention and exhaust mechanism for building fire protection engineering according to claim 1, characterized in that: A sliding ring (15) is welded to the top of the inner pipe (3), and is slidably connected to the inner wall of the inner pipe (3) through the sliding ring (15). The bottom end of the inner pipe (3) passes through the bottom of the outer pipe (2).

3. A smoke prevention and exhaust mechanism for building fire protection engineering according to claim 2, characterized in that: The movable frame (4) is welded to the bottom of the inner pipe (3), a through hole is provided in the middle thereof, and a smoking device (5) is installed thereon. The diameter of the movable frame (4) is larger than the diameter of the outer pipe (2).

4. A smoke prevention and exhaust mechanism for building fire protection engineering according to claim 1, characterized in that: The two rotating rods (11) are symmetrically distributed on both sides of the outer pipe (2). Bearings (12) are fixedly installed at both ends of the two rotating rods (11) and are rotatably connected to the fixed frame (1) and the movable frame (4) respectively through the bearings.

5. The smoke prevention and exhaust mechanism for building fire protection engineering according to claim 1, characterized in that: The output end of the motor (6) is bolted with a driving wheel (7), the outside of the driving wheel (7) is meshed with a toothed disc (8), an annular slider (9) is provided on the inner wall of the toothed disc (8), and an annular groove is provided on the outer wall of the outer pipe (2) near the top, and is rotatably connected to the annular slider (9) through the annular groove.

6. A smoke prevention and exhaust mechanism for building fire protection engineering according to claim 5, characterized in that: Driven wheels (10) are meshed on both sides of the toothed disc (8), and the middle parts of the two driven wheels (10) are respectively plugged into two rotating rods (11) and fixed with bolts. The outsides of the two rotating rods (11) and located between the bottom of the driven wheel (10) and the top of the movable frame (4) are provided with threads and are threadedly connected to a slider (13).

7. A smoke prevention and exhaust mechanism for building fire protection engineering according to claim 6, characterized in that: One end of two L-shaped connecting rods (14) are respectively welded to one side of the two sliders (13) away from each other, and the other ends of the two L-shaped connecting rods (14) are respectively fixed with bolts on both sides of the movable frame (4).

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