Intelligent smoke exhaust device in fire engineering

Abstract

The utility model relates to the technical field of intelligent smoke preventing and exhausting device in fire engineering, and disclose an intelligent smoke preventing and exhausting device in fire engineering, including square smoke exhaust pipe corridor, the lower surface of square smoke exhaust pipe corridor is provided with the smoke inlet, the top inside surface of square smoke exhaust pipe corridor is provided with smoke alarm, the upper end inside surface of square smoke exhaust pipe corridor is fixedly installed with fireproof box main part, the inside surface of fireproof box main part is fixedly connected with motor, the drive shaft department outer surface of motor is fixedly connected with first bevel gear, the lower surface of fireproof box main part is provided with convex strip seat, the inside surface of convex strip seat is connected with rotating shaft through bearing, the inner end of rotating shaft is fixed with second bevel gear, its fireproof box main part is assembled separately, directly disassembles fireproof box main part when disassembling, its fan blade mechanism can follow disassembly together, is convenient for taking out and is assembled and is changed, maintenance is more convenient, modularization splicing structure, convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of intelligent smoke control and exhaust devices in fire protection engineering, specifically an intelligent smoke control and exhaust device for fire protection engineering. Background Technology

[0002] Smoke control and exhaust systems consist of air supply and exhaust ducts, shafts, fire dampers, door opening and closing devices, and supply and exhaust fans. The smoke exhaust volume of a mechanical smoke exhaust system is directly related to the smoke control zones. Smoke control facilities in high-rise buildings should be divided into mechanical pressurized air supply smoke control facilities and natural smoke exhaust facilities with operable windows. Currently, high-rise buildings are numerous in China, and fires occur frequently. Once a fire breaks out in a high-rise building, smoke is one of the main reasons that hinders people's escape and firefighting efforts, and leads to deaths. Modern high-rise civil buildings have a lot of combustible decorations and furnishings, and many high-rise buildings use a lot of plastic decorations, synthetic fiber carpets, and furniture filled with foam plastic. These combustibles produce a lot of toxic fumes and heat during combustion. However, existing intelligent smoke control and exhaust devices are prone to failure when working in high-temperature environments for a long time, which can seriously threaten personal safety. Furthermore, existing smoke control and exhaust devices are not easy to install and disassemble, which brings difficulties to subsequent maintenance and repair. Among the aforementioned patents, such as the one authorized by publication number CN213273042U, this utility model discloses an intelligent smoke control and exhaust device for fire protection engineering, belonging to the field of fire protection equipment. It includes an upper shell and a lower shell that are interconnected. The lower shell has an installation unit inside. The upper shell has a one-sided opening structure, and the lower shell has a two-sided opening structure. The upper shell is fixed to the top side of the lower shell. The upper shell has an installation box inside, and a motor is installed inside the installation box. The output shaft of the motor is connected to a vertically arranged rotating shaft. The other end of the rotating shaft is rotatably connected to the bottom of the lower shell. A horizontally arranged sleeve is fixed inside the lower shell, and a rotating shaft is rotatably connected inside the sleeve. This device can protect the motor in the event of a fire, reduce the motor damage rate, and ensure rapid smoke exhaust in the event of a fire. At the same time, the decorative panel serves a decorative purpose, improving the aesthetics. It is also quick to disassemble and install, facilitating later maintenance and repair, and is highly convenient. In the aforementioned patent, the motor is provided with heat insulation protection. However, the fan blade mechanism with bevel gear transmission at the bottom is still inconvenient to install and disassemble. The fan blade system is set separately inside the pipe, and when it is damaged, it needs to be installed and disassembled from inside the pipe, which is inconvenient for replacement and maintenance. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an intelligent smoke control and exhaust device for fire protection engineering, which solves the problems of inconvenient replacement and maintenance of fan blade systems inside pipes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an intelligent smoke control and exhaust device for fire protection engineering, comprising a square smoke exhaust duct gallery, a smoke inlet provided on the lower surface of the square smoke exhaust duct gallery, a smoke alarm provided on the inner top surface of the square smoke exhaust duct gallery, a fireproof box body fixedly installed on the inner upper surface of the square smoke exhaust duct gallery, a motor fixedly connected to the inner surface of the fireproof box body, a first bevel gear fixedly connected to the outer surface of the drive shaft of the motor, a convex seat provided on the lower surface of the fireproof box body, a rotating shaft connected to the inner surface of the convex seat via a bearing, a second bevel gear fixed to the inner end of the rotating shaft, and a fan blade fixedly connected to the outer end surface of the rotating shaft via bolts.

[0005] Preferably, a circular mounting sleeve is provided at the inner end of the fan blade, and a positioning protrusion is provided inside the circular mounting sleeve. The positioning protrusion is engaged with a positioning groove reserved on one side of the rotating shaft.

[0006] Preferably, the lower inner surface of the square smoke exhaust duct is provided with a positioning groove, and the lower outer surface of the convex strip seat is slidably engaged with the inner surface of the positioning groove.

[0007] Preferably, the upper surface of the fireproof box body is fixed with a top cover by screws.

[0008] Preferably, the inner surface of the fireproof box body is covered with a first heat insulation plate, and the lower surface of the top cover is covered with a second heat insulation plate.

[0009] Preferably, four support seats are fixed on the outside of the fireproof box body. The support seats are supported on the upper surface of the square smoke exhaust duct corridor and are fixed to the upper surface of the square smoke exhaust duct corridor by screws.

[0010] Preferably, the upper surface of the square smoke exhaust duct is provided with a square opening, and the lower surface of the fireproof box body is tightly engaged with the inner surface of the square opening of the square smoke exhaust duct.

[0011] Compared with the prior art, this utility model provides an intelligent smoke control and exhaust device for fire protection engineering, which has the following beneficial effects: By adopting a square smoke exhaust duct gallery and motor-driven fan blade assembly structure, the fireproof box body is assembled separately. When disassembling, the fireproof box body is directly disassembled, and the fan blade mechanism can be disassembled together, making it easy to remove for assembly, disassembly and replacement, and maintenance more convenient. The modular splicing structure is easy to use. Attached Figure Description

[0012] Figure 1 This is the first schematic diagram of the overall structure; Figure 2 This is the second schematic diagram of the overall structure; Figure 3 This is a schematic diagram of the first cross-section of the overall structure; Figure 4 This is a schematic diagram of the second cross-section of the overall structure; Figure 5 This is an enlarged view of point A.

[0013] In the diagram: 1. Square smoke exhaust pipe corridor, 2. Smoke inlet, 3. Smoke alarm, 4. Fireproof box body, 5. Motor, 6. First bevel gear, 7. Raised strip seat, 70. Bearing, 8. Rotating shaft, 9. Second bevel gear, 10. Fan blade, 11. Positioning protrusion, 12. Bolt, 40. First heat insulation plate, 41. Top cover, 42. Second heat insulation plate, 400. Support base. 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] This utility model provides a technical solution: an intelligent smoke control and exhaust device for fire protection engineering, comprising a square smoke exhaust duct corridor 1, a smoke inlet 2 on the lower surface of the square smoke exhaust duct corridor 1, a smoke alarm 3 on the inner top surface of the square smoke exhaust duct corridor 1, a fireproof box body 4 fixedly installed on the inner upper surface of the square smoke exhaust duct corridor 1, a motor 5 fixedly connected to the inner surface of the fireproof box body 4, a first bevel gear 6 fixedly connected to the outer surface of the drive shaft of the motor 5, a protruding seat 7 on the lower surface of the fireproof box body 4, a rotating shaft 8 connected to the inner surface of the protruding seat 7 via a bearing 70, a second bevel gear 9 fixedly installed at the inner end of the rotating shaft 8, and a fan blade 10 fixedly connected to the outer end surface of the rotating shaft 8 via bolts 12; by adopting an assembled structure of square smoke exhaust duct corridor and motor-driven fan blade, the fireproof box body is assembled separately, and the fan blade mechanism can be disassembled together with the fireproof box body during disassembly, making it easy to remove and replace, and making maintenance more convenient. The modular splicing structure is easy to use. A circular mounting sleeve is provided at the inner end of the fan blade 10, and a positioning protrusion 11 is provided inside the circular mounting sleeve. The positioning protrusion 11 is engaged in a positioning groove reserved on one side of the rotating shaft 8. This facilitates positioning and engagement. The circular mounting sleeve of the fan blade 10 is fitted onto the outside of the rotating shaft 8 and positioned by the engagement of the positioning protrusion 11 and the positioning groove. It will not slip or twist. It can then be locked with bolts 12. The installation is convenient and secure, and the disassembly is convenient. A positioning groove 71 is provided on the inner surface of the lower end of the square smoke exhaust duct 1. The outer surface of the lower end of the protruding strip seat 7 is slidably engaged with the inner surface of the positioning groove 71. The protruding strip seat 7 is installed in the square smoke exhaust duct 1 together with the fireproof box body 4. Its bottom can be engaged in the positioning groove 71 for positioning and support, thereby improving the support performance. The upper surface of the fireproof box body 4 is fixed with a top cover 41 by screws; the inner surface of the fireproof box body 4 is covered with a first heat insulation board 40, and the lower surface of the top cover 41 is covered with a second heat insulation board 42; the first heat insulation board 40 and the second heat insulation board 42 are made of fireproof rock wool board, which can block high temperature and protect the internal motor 5, and the outer surface of the fireproof box body 4 is sprayed with fireproof paint coating, which can block fire. Four support seats 400 are fixed on the outside of the fireproof box body 4. The support seats 400 support the upper surface of the square smoke exhaust duct corridor 1. The support seats 400 are fixed to the upper surface of the square smoke exhaust duct corridor 1 by screws. The upper surface of the square smoke exhaust duct corridor 1 has a square opening. The lower surface of the fireproof box body 4 is tightly snapped into the inner surface of the square opening of the square smoke exhaust duct corridor 1. The snap-fit ​​installation is convenient. The working principle of this device is as follows: During use, a first bevel gear 6 is fixedly connected to the outer surface of the drive shaft of motor 5, and a fan blade 10 is fixedly connected to the outer end surface of rotating shaft 8 via bolts 12; a second bevel gear 9 is fixed to the inner end of rotating shaft 8. The first bevel gear 6 and the second bevel gear 9 mesh and drive each other. When a fire occurs and smoke is exhausted, the smoke inlet rises and is guided into the square smoke exhaust duct 1, triggering an alarm via smoke detector 3. The control system (not shown in the prior art diagram) activates motor 5 to rotate, which rotates through the meshing of the bevel gears. The rotating shaft 8 drives the fan blades 10 to rotate and exhaust smoke, making it easy to use. The motor 5 is fixed inside the fireproof box body 4 for protection. The upper surface of the fireproof box body 4 is fixed with a top cover 41 by screws. The inner surface of the fireproof box body 4 is covered with a first heat insulation board 40, and the lower surface of the top cover 41 is covered with a second heat insulation board 42. The first heat insulation board 40 and the second heat insulation board 42 are made of fireproof rock wool board, which can block high temperature and protect the internal motor 5. The outer surface of the fireproof box body 4 is sprayed with fireproof paint coating, which can block fire. When replacing the fan blade 10 mechanism, the main body 4 of the fireproof box can be removed separately. The protruding seat 7 is an integral structure with the main body 4 of the fireproof box, and the fan blade can be removed together. The inner end of the fan blade 10 is provided with a circular mounting sleeve, and a positioning protrusion 11 is provided inside the circular mounting sleeve. The positioning protrusion 11 is engaged in the positioning groove reserved on one side of the rotating shaft 8. This facilitates positioning and engagement. The circular mounting sleeve of the fan blade 10 is fitted onto the outside of the rotating shaft 8 and positioned by the engagement of the positioning protrusion 11 and the positioning groove. It will not slip or twist. Then, it can be locked with bolts 12. The installation is convenient and firm, and the disassembly is convenient. The modular structure allows the pipe and the smoke exhaust mechanism to be independent, making installation, disassembly and maintenance convenient.

[0016] 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.

[0017] 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 intelligent smoke control and exhaust device for fire protection engineering, comprising a square smoke exhaust duct gallery (1), characterized in that: The lower surface of the square smoke exhaust duct (1) is provided with a smoke inlet (2), the upper inner surface of the square smoke exhaust duct (1) is provided with a smoke alarm (3), the upper inner surface of the square smoke exhaust duct (1) is fixedly installed with a fireproof box body (4), the inner surface of the fireproof box body (4) is fixedly connected with a motor (5), the outer surface of the drive shaft of the motor (5) is fixedly connected with a first bevel gear (6), the lower surface of the fireproof box body (4) is provided with a convex seat (7), the inner surface of the convex seat (7) is connected with a rotating shaft (8) through a bearing (70), the inner end of the rotating shaft (8) is fixed with a second bevel gear (9), and the outer end of the rotating shaft (8) is fixedly connected with a fan blade (10) through a bolt (12).

2. The intelligent smoke control and exhaust device for fire protection engineering according to claim 1, characterized in that: The inner end of the fan blade (10) is provided with a circular mounting sleeve, and a positioning protrusion (11) is provided inside the circular mounting sleeve. The positioning protrusion (11) is engaged in a positioning groove reserved on one side of the rotating shaft (8).

3. The intelligent smoke control and exhaust device for fire protection engineering according to claim 1, characterized in that: The lower inner surface of the square exhaust pipe gallery (1) is provided with a positioning groove (71), and the lower outer surface of the convex strip seat (7) is slidably engaged with the inner surface of the positioning groove (71).

4. The intelligent smoke control and exhaust device for fire protection engineering according to claim 1, characterized in that: The upper surface of the fireproof box body (4) is fixed with a top cover (41) by screws.

5. The intelligent smoke control and exhaust device for fire protection engineering according to claim 4, characterized in that: The inner surface of the fireproof box body (4) is covered with a first heat insulation plate (40), and the lower surface of the top cover (41) is covered with a second heat insulation plate (42).

6. The intelligent smoke control and exhaust device for fire protection engineering according to claim 1, characterized in that: Four support seats (400) are fixed on the outside of the fireproof box body (4). The support seats (400) are supported on the upper surface of the square smoke exhaust pipe gallery (1). The support seats (400) are fixed to the upper surface of the square smoke exhaust pipe gallery (1) by screws.

7. The intelligent smoke control and exhaust device for fire protection engineering according to claim 1, characterized in that: The upper surface of the square smoke exhaust duct (1) has a square opening, and the lower surface of the fireproof box body (4) is tightly fitted onto the inner surface of the square opening of the square smoke exhaust duct (1).

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