Smoke exhaust auxiliary device for fire engineering

Abstract

The utility model belongs to the technical field of fire engineering, and particularly relates to a smoke exhaust auxiliary device for fire engineering, which comprises a smoke exhaust pipe, the top of the smoke exhaust pipe is connected with a fan, the bottom of the smoke exhaust pipe is slidably connected with a smoke exhaust telescopic pipe, and a first driving mechanism for driving the smoke exhaust telescopic pipe to move is arranged in the smoke exhaust pipe. A smoke suction box is fixedly arranged at the bottom of the smoke exhaust telescopic pipe, a smoke suction opening is formed in the bottom of the smoke suction box, and a plurality of smoke suction pipes are arranged on the side wall of the smoke suction box in a sliding mode. According to the smoke suction device, dense smoke at the low position can be sucked, dense smoke around the smoke suction box can also be sucked, the suction range is larger, and the suction efficiency is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire protection engineering, and particularly relates to a smoke exhaust auxiliary device for fire protection engineering. Background Art

[0002] Fire protection means preventing and extinguishing fires. In daily life, when a fire occurs, a large amount of thick smoke will be generated at the fire point. The thick smoke spreads rapidly, affecting the escape of people. The thick smoke contains harmful substances. When inhaled by the human body, the human body will become unconscious, increasing the difficulty of rescue. A smoke exhaust device is a device that discharges thick smoke outside the building so that firefighters can enter the burning building to carry out fire extinguishing and rescue work.

[0003] An existing smoke exhaust auxiliary device for fire protection engineering with the publication number of CN220939677U includes a base. A sliding frame is fixedly connected to the top of the base, and a sliding column is slidably installed in the sliding frame. A sliding component is fixedly connected to one side of the sliding frame, and a fixing plate is slidably installed on the sliding component. A smoke exhaust chamber is fixedly connected to the top of the fixing plate, and a smoke exhaust port is opened on the smoke exhaust chamber. A telescopic pipe is fixedly connected to one side of the smoke exhaust chamber, and a discharging component is fixedly connected to the bottom of the smoke exhaust chamber. The above-mentioned smoke exhaust auxiliary device can sweep off the dust particles on the filter screen and collect the dust particles; at the same time, it can perform smoke exhaust treatment on a distant area, increasing the smoke extraction range.

[0004] However, in the event of a fire, the thick smoke at a low position is often inhaled into the human body, causing harm, and the angle of inhaling thick smoke of the above device is fixed, and the thick smoke at a low position cannot be discharged in time. Content of the Utility Model

[0005] The purpose of the utility model is to provide a smoke exhaust auxiliary device for fire protection engineering to solve the problems raised in the above background art.

[0006] To achieve the above technical purpose, the technical solution of the utility model is as follows:

[0007] A smoke exhaust auxiliary device for fire protection engineering includes a smoke exhaust pipe. A fan is connected to the top of the smoke exhaust pipe. A smoke exhaust telescopic pipe is slidably connected to the bottom of the smoke exhaust pipe. A first driving mechanism for driving the movement of the smoke exhaust telescopic pipe is arranged inside the smoke exhaust pipe. A smoking box is fixedly arranged at the bottom of the smoke exhaust telescopic pipe. A smoking port is arranged at the bottom of the smoking box. A plurality of smoking pipes are slidably arranged on the side wall of the smoking box.

[0008] As an improvement, there are two smoke exhaust pipes. Smoke exhaust telescopic pipes are arranged at the bottoms of the two smoke exhaust pipes. The two smoke exhaust telescopic pipes are symmetrically arranged at the top of the smoking box respectively. A smoke exhaust hole communicating with the two smoke exhaust telescopic pipes is arranged at the top of the smoking box.

[0009] As a further improvement, the smoke exhaust inlets at the bottoms of the two smoke exhaust telescopic pipes extend into the smoking box, the smoking port is arranged at the center of the bottom of the smoking box, the smoke exhaust inlets of the two smoke exhaust telescopic pipes are located on both sides of the smoking port, and filters are provided at the smoke exhaust inlets of the two smoke exhaust telescopic pipes.

[0010] As a further improvement, a plurality of the smoking pipes are uniformly arranged along the circumferential direction of the smoking box, and a second driving mechanism for driving the plurality of smoking pipes to move is arranged inside the smoking box.

[0011] As a further improvement, the first driving mechanism includes a first motor fixed inside the smoke exhaust pipe, a rotating shaft is fixedly arranged at the output end of the first motor, a first gear is fixedly arranged on the outer part of the rotating shaft, a first rack is fixedly arranged on the outer wall of the smoke exhaust telescopic pipe located inside the smoke exhaust pipe, and the first gear meshes with the first rack.

[0012] As a further improvement, the second driving mechanism includes a toothed ring rotatably arranged at the inner bottom of the smoking box, the toothed ring meshes with a plurality of second gears, a second rack is fixedly arranged on one side of each of the plurality of smoking pipes, and the plurality of second gears and the plurality of second racks correspond to each other and are meshed.

[0013] Due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0014] For the smoke exhaust auxiliary device for fire protection engineering provided by the present utility model, the first driving mechanism drives the smoke exhaust telescopic pipe and the smoking box to move downward, sucks the thick smoke at a low position through the smoking port, the second driving mechanism drives a plurality of smoking pipes to move, sucks the thick smoke around the smoking box, has a larger suction range and higher suction efficiency.

[0015] The two smoke exhaust telescopic pipes are located on both sides of the smoking port, and filters are arranged at the bottoms of the two smoke exhaust telescopic pipes, filter the sucked thick smoke, block the particulate matters below the filters, prevent the particulate matters from entering the fan and affecting the service life of the fan, and the blocked particulate matters fall onto the inner bottom wall of the smoking box and will not fall from the smoking port, which is beneficial to the collection of particulate matters. Description of the Drawings

[0016] Figure 1 is the structural schematic diagram of this embodiment;

[0017] Figure 2 is the structural schematic diagram of the first driving mechanism and the smoke exhaust telescopic pipe in this embodiment;

[0018] Figure 3 is the structural schematic diagram inside the smoking box in this embodiment;

[0019] Figure 4 It is a schematic structural diagram of the second driving mechanism in this embodiment;

[0020] Wherein: 1 - smoke exhaust pipe, 2 - smoke exhaust telescopic pipe, 3 - smoke exhaust outlet, 4 - smoke exhaust inlet, 5 - smoking box, 6 - smoking port, 7 - first motor, 8 - rotating shaft, 9 - first gear, 10 - first rack, 11 - smoking pipe, 12 - toothed ring, 13 - second gear, 14 - second rack. Specific embodiments

[0021] The following further describes the present utility model in conjunction with specific embodiments and the accompanying drawings. Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to this application; in order to better illustrate the embodiments of the present utility model, some components in the drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0022] In the drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model 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, so the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation to this application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] As Figures 1-4 shown, a smoke exhaust auxiliary device for fire protection engineering includes a smoke exhaust pipe 1. A blower is connected to the top of the smoke exhaust pipe 1. The top outlet of the smoke exhaust pipe 1 is communicated with the inlet of the blower. A smoke exhaust telescopic pipe 2 is slidably connected to the bottom of the smoke exhaust pipe 1. The top of the smoke exhaust telescopic pipe 2 is a smoke exhaust outlet 3, and the bottom of the smoke exhaust telescopic pipe 2 is a smoke exhaust inlet 4. The smoke exhaust outlet 3 is located inside the smoke exhaust pipe 1, and the smoke exhaust inlet 4 is located outside the smoke exhaust pipe 1. A first driving mechanism for driving the movement of the smoke exhaust telescopic pipe 2 is provided inside the smoke exhaust pipe 1. A smoking box 5 is fixedly provided at the bottom of the smoke exhaust telescopic pipe 2, and a smoking port 6 is provided at the bottom of the smoking box 5.

[0024] When a fire occurs, the smoke and dust inside the building enter the smoking box 5 through the smoking port 6, and then are discharged through the smoke exhaust telescopic pipe 2 and the smoke exhaust pipe 1. The blower accelerates the discharge of the smoke and dust inside the building to the outside.

[0025] In this embodiment, the first driving mechanism includes a first motor 7 fixed inside the exhaust pipe 1. The output end of the first motor 7 is fixedly provided with a rotating shaft 8. The outer part of the rotating shaft 8 is fixedly provided with a first gear 9. On the outer wall of the exhaust telescopic pipe 2 located inside the exhaust pipe 1, a first rack 10 is fixedly provided. The first gear 9 meshes with the first rack 10. The first motor 7 drives the rotating shaft 8 and the first gear 9 to rotate, thereby driving the first rack 10, the exhaust telescopic pipe 2 and the smoking box 5 to move downward to suck the thick smoke at a low position.

[0026] In this embodiment, a plurality of smoking pipes 11 are slidably arranged on the side wall of the smoking box 5. The plurality of smoking pipes 11 are evenly arranged along the circumferential direction of the smoking box 5. A second driving mechanism for driving the plurality of smoking pipes 11 to move is arranged inside the smoking box 5. The second driving mechanism includes a toothed ring 12 rotatably arranged at the inner bottom of the smoking box 5. The toothed ring 12 meshes with a plurality of second gears 13. On one side of each of the plurality of smoking pipes 11, a second rack 14 is fixedly provided. The plurality of second gears 13 and the plurality of second racks 14 are in one-to-one correspondence and mesh with each other.

[0027] Preferably, the plurality of smoking pipes 11 and the plurality of second racks 14 are both located above the toothed ring 12. The lower parts of the plurality of second gears 13 mesh with the toothed ring 12, and the upper parts of the plurality of second gears 13 respectively mesh with the plurality of second racks 14. When the toothed ring 12 rotates, it drives the plurality of second gears 13 to rotate, and at the same time drives the plurality of second racks 14 and the smoking pipes 11 to move. When a fire occurs, the toothed ring 12 drives the plurality of smoking pipes 11 to move in a direction away from the center of the smoking box 5 to suck the thick smoke around the smoking box 5, increasing the smoking range and improving the smoking efficiency; when no fire occurs, the toothed ring 12 drives the plurality of smoking pipes 11 to move in a direction close to the center of the smoking box 5, and the smoking pipes 11 are hidden inside the smoking box 5.

[0028] Preferably, the toothed ring 12 can be driven to rotate by a third motor and a third gear. Specifically, the toothed ring 12 also meshes with a third gear. A third motor is also fixedly arranged inside the smoking box 5. The output end of the third motor is fixedly connected to the third gear. By driving the third gear to rotate by the third motor, the toothed ring 12 is driven to rotate, or the toothed ring 12 can also be driven to rotate by other structures.

[0029] In this embodiment, there are two exhaust pipes 1. Exhaust telescopic pipes 2 are slidably arranged in both of the two exhaust pipes 1. The two exhaust telescopic pipes 2 are symmetrically arranged at the top of the smoking box 5 respectively. Exhaust holes communicating with the two exhaust telescopic pipes 2 are arranged at the top of the smoking box 5. The exhaust inlets 4 at the bottoms of the two exhaust telescopic pipes 2 extend into the interior of the smoking box 5. The smoking port 6 is arranged at the center of the bottom of the smoking box 5. The exhaust inlets 4 of the two exhaust telescopic pipes 2 are located on both sides of the smoking port 6. Filters are arranged at the exhaust inlets 4 of the two exhaust telescopic pipes 2. The top outlets of the two exhaust pipes 1 are jointly connected to the inlet of a fan. During the process of sucking thick smoke, the thick smoke entering the smoking box 5 enters the two exhaust telescopic pipes 2 and is then sucked to the outside of the building by the fan. Since there are a large number of particulate matters in the thick smoke, they are blocked by the filters at the exhaust inlets 4 and will not enter the fan, thus affecting the service life of the fan. Moreover, the particulate matters blocked at the bottom of the filters fall onto the inner bottom wall of the smoking box 5 and will not fall from the smoking port 6 of the smoking box 5.

[0030] Preferably, a first driving mechanism is arranged in each exhaust pipe 1 for respectively driving the two exhaust telescopic pipes 2 to move up and down.

[0031] When this embodiment is in use, in case of a fire, the first motor 7 drives the rotating shaft 8 and the first gear 9 to rotate, driving the first rack 10, the exhaust telescopic pipe 2 and the smoking box 5 to move downward, sucking the thick smoke at a lower position through the smoking port 6. Then, the second driving mechanism drives the plurality of smoking pipes 11 to move away from the center of the smoking box 5 to suck the thick smoke around the smoking box 5, with a larger suction range and higher efficiency for the thick smoke. At the same time, during the suction process, the particulate matters in the thick smoke are blocked by the filters and will not enter the exhaust telescopic pipe 2 and the fan. The particulate matters blocked by the filters fall onto the inner bottom wall of the smoking box 5 and will not fall from the smoking port 6.

[0032] The utility model can suck the thick smoke at a lower position and also suck the thick smoke around the smoking box, with a larger suction range and higher suction efficiency.

[0033] The specific embodiments of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and deformations made according to the technical concept of the utility model should be included within the protection scope of the claims of the utility model.

Claims

1. A smoke exhaust auxiliary device for fire protection engineering, comprising a smoke exhaust pipe, the top of which is connected to a fan, characterized in that: The bottom of the smoke exhaust pipe is slidably connected to a smoke exhaust telescopic pipe, a first driving mechanism for driving the smoke exhaust telescopic pipe to move is provided inside the smoke exhaust pipe, a smoking box is fixedly provided at the bottom of the smoke exhaust telescopic pipe, a smoking port is provided at the bottom of the smoking box, and a plurality of smoking pipes are slidably provided on the side walls of the smoking box.

2. The smoke exhaust auxiliary device for fire protection engineering according to claim 1, characterized in that: There are two smoke exhaust pipes, each of which has a smoke exhaust telescopic pipe at its bottom. The two smoke exhaust telescopic pipes are symmetrically arranged on the top of the smoking box, and the top of the smoking box is provided with a smoke exhaust hole connected to the two smoke exhaust telescopic pipes.

3. The smoke exhaust auxiliary device for fire protection engineering according to claim 2, characterized in that: The smoke exhaust inlets at the bottom of the two smoke exhaust telescopic tubes extend into the smoking box, the smoking port is arranged at the center of the bottom of the smoking box, the smoke exhaust inlets of the two smoke exhaust telescopic tubes are located on both sides of the smoking port, and filters are arranged at the smoke exhaust inlets of the two smoke exhaust telescopic tubes.

4. The smoke exhaust auxiliary device for fire protection engineering according to claim 1, characterized in that: The plurality of smoking pipes are evenly arranged along the circumference of the smoking box, and a second driving mechanism for driving the plurality of smoking pipes to move is arranged inside the smoking box.

5. The smoke exhaust auxiliary device for fire protection engineering according to claim 1, characterized in that: The first driving mechanism includes a first motor fixed inside the smoke exhaust pipe, a rotating shaft is fixedly provided at the output end of the first motor, a first gear is fixedly provided outside the rotating shaft, a first rack is fixedly provided on the outer wall of the smoke exhaust telescopic tube located inside the smoke exhaust pipe, and the first gear is meshed with the first rack.

6. The smoke exhaust auxiliary device for fire protection engineering according to claim 4, characterized in that: The second driving mechanism includes a gear ring rotatably arranged at the bottom of the smoking box, the gear ring is meshed with multiple second gears, a second rack is fixedly provided on one side of the multiple smoking pipes, and the multiple second gears correspond to and mesh with the multiple second racks one by one.

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