Automatic smoke exhaust device for building fire protection engineering
By introducing a hydraulically driven brush assembly into the smoke exhaust system to remove particulate matter from the filter plate, the problem of filter clogging is solved, enabling timely exhaust of dense smoke and efficient firefighting operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-10
AI Technical Summary
The filters of existing building fire protection automatic smoke exhaust systems are prone to clogging during a fire, which prevents dense smoke from being discharged in a timely manner, reduces smoke exhaust efficiency, and affects the smooth progress of fire protection work.
A smoke extraction device was designed, comprising a hydraulic cylinder, a connecting block, a fixed frame, a compression spring, and a brush assembly. The hydraulic cylinder drives the brush assembly to remove particulate matter from the filter plate, maintaining a clear state. The device works in conjunction with a magnetic collection box to collect the removed material, thus achieving automatic unblocking and cleaning.
It effectively removes particulate matter from the filter plate, ensuring timely and continuous discharge of dense smoke, improving smoke extraction efficiency, and guaranteeing the smooth progress of fire-fighting work.
Smart Images
Figure CN224108318U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of building fire-fighting smoke exhaust, specifically to a building fire engineering automatic smoke exhaust device. BACKGROUND
[0002] The automatic smoke exhaust device is an important component in building fire engineering, and its main function is to automatically detect and remove smoke in the building when a fire occurs, thereby ensuring the safe evacuation of personnel and the smooth progress of fire fighting work. The working principle mainly depends on smoke detectors and control systems. When a fire occurs, the smoke detector will quickly detect the smoke and send a signal to the control system. After receiving the signal, the control system will immediately start the smoke exhaust fan to exhaust the smoke in the building through the smoke exhaust duct.
[0003] The existing building fire engineering automatic smoke exhaust device, when in use, most of the smoke exhaust ducts are equipped with filter screens to filter debris and reduce damage to the smoke exhaust fan caused by debris entering the smoke exhaust duct. When a fire occurs, thick smoke will be generated, and particulate matter will be carried in the thick smoke. Long-term filtration of thick smoke by the filter screen will cause particulate matter to accumulate on the filter screen, causing some blockage. The existing part of the smoke exhaust device is not convenient for dredging the filter screen, which can easily lead to the failure of timely exhaust of thick smoke and reduce the smoke exhaust efficiency, and also affect the smooth progress of fire fighting work. Therefore, in view of the above problems, the utility model provides a building fire engineering automatic smoke exhaust device. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a building fire engineering automatic smoke exhaust device to solve the problem that the existing part of the smoke exhaust device is not convenient for dredging the filter screen, which can easily lead to the failure of timely exhaust of thick smoke and reduce the smoke exhaust efficiency, and also affect the smooth progress of fire fighting work.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] The utility model provides an automatic smoke exhaust device of building fire engineering, including smoke exhaust pipeline and smoke exhaust fan, the inside installation of smoke exhaust pipeline is equipped with smoke exhaust fan, the upper end of smoke exhaust pipeline is installed with protective housing, the inside installation of protective housing is equipped with hydraulic cylinder, the lower fixed connection of hydraulic cylinder is equipped with connecting block, the inboard of connecting block right end is equipped with fixed frame, the fixed connection of fixed frame inboard is equipped with compression spring, the other end fixed connection of compression spring is equipped with connecting plate, the right end fixed connection of connecting plate is equipped with brush assembly, the inboard of connecting block passes through bolt, the detachable screw thread connection of bolt upper end outboard is equipped with nut, the fixed connection of smoke exhaust pipeline inner wall is equipped with limit frame, the inside of smoke exhaust pipeline is placed with filter board, the outside installation of filter board is equipped with elastic rubber sleeve, the lower fixed connection of smoke exhaust pipeline is equipped with telescopic component, the left end fixed connection of telescopic component is equipped with baffle, the fixed connection of baffle outboard is equipped with sealing sleeve, the lower fixed connection of smoke exhaust pipeline is equipped with support plate, the lower end of smoke exhaust pipeline is equipped with discharge gate, the inside of discharge gate is placed with collection box, the inboard fixed connection of collection box right end is equipped with first magnet, the right end fixed connection of discharge gate is equipped with second magnet.
[0007] Preferably, the inside of the smoke exhaust pipeline is hollow, the smoke exhaust fan is located on the right side of the limit frame, and the lower part of the hydraulic cylinder penetrates into the inside of the smoke exhaust pipeline.
[0008] Preferably, the connecting block is located in the inside of the smoke exhaust pipeline, the number of the compression springs is several and they are evenly arranged, and the outside of the connecting plate and the inboard of the right end of the fixed frame are slidingly connected.
[0009] Preferably, the right end surface of the brush assembly and the left end surface of the filter board are attached, the bolt penetrates through the connecting block and the fixed frame, and the right end surface of the filter board and the left end surface of the limit frame are attached.
[0010] Preferably, the outside of the elastic rubber sleeve and the inner wall of the smoke exhaust pipeline are closely attached, the upper end surface of the sealing sleeve and the lower end surface of the discharge gate are attached, the first magnet and the second magnet are magnetically attracted, and the collection box is located above the sealing sleeve.
[0011] Compared with the prior art, the utility model has the advantages that:
[0012] In the utility model, the hydraulic cylinder, the connecting block, the fixed frame, the compression spring, the connecting plate, the brush assembly, the bolt and the nut are arranged, when the filter board filters the thick smoke, the hydraulic cylinder is started, the connecting block is driven to move downward, the cooperation of the bolt and the nut fixes the fixed frame and the connecting block, the compression spring provides a reverse force to make the right end surface of the brush assembly continuously attach the left end surface of the filter board, the connecting block drives the fixed frame and the brush assembly to move downward as a whole, the brush assembly effectively removes the accumulated particles on the filter board and keeps the filter board unblocked, so that the thick smoke can be continuously discharged in time, thereby improving the overall smoke exhaust efficiency and enabling the fire fighting work to be smoothly carried out.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 is a schematic diagram of the structure of the utility model Figure 1 at A;
[0015] Figure 3 is a schematic diagram of the structure of the utility model Figure 1 at B;
[0016] Figure 4 is a schematic diagram of the top view structure of the protective shell of the utility model;
[0017] Figure 5 is a schematic diagram of the right view structure of the smoke exhaust duct of the utility model;
[0018] Figure 6 is a schematic diagram of the top view structure of the fixed frame of the utility model;
[0019] Figure 7 is a schematic diagram of the structure of the support plate of the utility model;
[0020] Figure 8 is a schematic diagram of the structure of the telescopic assembly of the utility model;
[0021] Figure 9 is a schematic diagram of the structure of the collection box of the utility model.
[0022] In the figure: 1, smoke exhaust duct; 2, smoke exhaust fan; 3, protective shell; 4, hydraulic cylinder; 5, connecting block; 6, fixed frame; 7, compression spring; 8, connecting plate; 9, brush assembly; 10, bolt; 11, nut; 12, limiting frame; 13, filter plate; 14, elastic rubber sleeve; 15, telescopic assembly; 16, baffle; 17, sealing sleeve; 18, support plate; 19, discharge port; 20, collection box; 21, first magnet; 22, second magnet. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0024] Please refer to Figures 1-9 , the utility model provides a technical scheme:
[0025] The utility model provides an automatic smoke exhaust device of building fire engineering, including smoke exhaust pipeline 1 and smoke exhaust fan 2, the inside installation of smoke exhaust pipeline 1 is equipped with smoke exhaust fan 2, and the upper end of smoke exhaust pipeline 1 is installed with protective housing 3, and the inside installation of protective housing 3 is equipped with hydraulic cylinder 4, and the lower end fixed connection of hydraulic cylinder 4 is equipped with connecting block 5, and the right end inboard of connecting block 5 is equipped with fixed frame 6, and the inboard fixed connection of fixed frame 6 is equipped with compression spring 7, and the other end fixed connection of compression spring 7 is equipped with connecting plate 8, and the right end fixed connection of connecting plate 8 is equipped with brush assembly 9, and the inboard of connecting block 5 passes through bolt 10, and the detachable screw thread connection of the upper end outboard of bolt 10 is equipped with nut 11, and the fixed connection of the inner wall of smoke exhaust pipeline 1 is equipped with limiting frame 12, and the inside of smoke exhaust pipeline 1 is placed with filter plate 13, and the outside installation of filter plate 13 is equipped with elastic rubber sleeve 14, and the lower end fixed connection of smoke exhaust pipeline 1 is equipped with telescopic component 15, and the left end fixed connection of telescopic component 15 is equipped with baffle 16, and the fixed connection of baffle 16 outboard is equipped with sealing sleeve 17, and the lower end fixed connection of smoke exhaust pipeline 1 is equipped with support plate 18, and the lower end of smoke exhaust pipeline 1 is set up with discharge gate 19, and the inside of discharge gate 19 is placed with collection box 20, and the right end inboard fixed connection of collection box 20 is equipped with first magnet 21, and the right end fixed connection of discharge gate 19 is equipped with second magnet 22.
[0026] The smoke exhaust pipe 1 is hollow inside, the smoke exhaust fan 2 is located on the right side of the limiting frame 12, the hydraulic cylinder 4 penetrates into the inside of the smoke exhaust pipe 1, the connecting block 5 is located inside the smoke exhaust pipe 1, the compression springs 7 are uniformly arranged, the connecting plate 8 is slidably connected with the outside of the fixed frame 6 and the inside of the right end of the fixed frame 6, the right end surface of the brush assembly 9 is attached to the left end surface of the filter plate 13, the bolt 10 penetrates through the connecting block 5 and the fixed frame 6, the right end surface of the filter plate 13 is attached to the left end surface of the limiting frame 12, the outside of the elastic rubber sleeve 14 is tightly attached to the inner wall of the smoke exhaust pipe 1, the upper end surface of the sealing sleeve 17 is attached to the lower end surface of the discharge port 19, the first magnet 21 and the second magnet 22 are magnetically attracted, the collecting box 20 is located above the sealing sleeve 17, the smoke exhaust pipe 1 is provided with the smoke exhaust fan 2, the upper end of the smoke exhaust pipe 1 is provided with the protection shell 3, the protection shell 3 is provided with the hydraulic cylinder 4, so that the hydraulic cylinder 4, the connecting block 5, the fixed frame 6, the compression springs 7, the connecting plate 8, the brush assembly 9, the bolt 10 and the nut 11 are conveniently arranged, when the filter plate 13 filters the thick smoke, the hydraulic cylinder 4 is started, the connecting block 5 is driven by the hydraulic cylinder 4 to move downward, the fixed frame 6 and the connecting block 5 are fixed by the cooperation of the bolt 10 and the nut 11, the right end surface of the brush assembly 9 is continuously attached to the left end surface of the filter plate 13 by the reverse force provided by the compression springs 7, the fixed frame 6 and the brush assembly 9 are integrally driven by the connecting block 5 to move downward, so that the brush assembly 9 effectively removes the accumulated particles on the filter plate 13 and keeps the filter plate 13 unblocked, thereby the thick smoke can be continuously discharged in time, and the overall smoke exhaust efficiency is improved, and the fire fighting work can be smoothly carried out; the lower end of the hydraulic cylinder 4 is fixedly connected with the connecting block 5, the right end inside of the connecting block 5 is provided with the fixed frame 6, the inside of the fixed frame 6 is fixedly connected with the compression springs 7, the other end of the compression springs 7 is fixedly connected with the connecting plate 8, the right end of the connecting plate 8 is fixedly connected with the brush assembly 9, the inside of the connecting block 5 penetrates through the bolt 10, the upper end outside of the bolt 10 is detachably threadedly connected with the nut 11, the inner wall of the smoke exhaust pipe 1 is fixedly connected with the limiting frame 12, the inside of the smoke exhaust pipe 1 is placed with the filter plate 13, the outside of the filter plate 13 is provided with the elastic rubber sleeve 14, the lower end of the smoke exhaust pipe 1 is fixedly connected with the telescopic assembly 15, the left end of the telescopic assembly 15 is fixedly connected with the baffle 16, the outside of the baffle 16 is fixedly connected with the sealing sleeve 17, the lower end of the smoke exhaust pipe 1 is fixedly connected with the supporting plate 18, the lower end of the smoke exhaust pipe 1 is provided with the discharge port 19, the inside of the discharge port 19 is placed with the collecting box 20, the right end inside of the collecting box 20 is fixedly connected with the first magnet 21, the right end of the discharge port 19 is fixedly connected with the second magnet 22.
[0027] Workflow: The device is powered when in use, when a fire occurs and needs to discharge smoke, the external smoke detector starts the exhaust fan 2 in time through the control system, so that the smoke is sucked into the exhaust duct 1 and discharged outward, after the smoke enters the exhaust duct 1, the filter plate 13 filters the smoke, at this time the particulate matter carried in the smoke is intercepted by the filter plate 13, then the external controller starts the hydraulic cylinder 4, the protective shell 3 protects the hydraulic cylinder 4 and seals the connection between the protective shell 3 and the exhaust duct 1, reducing smoke overflow, the hydraulic cylinder 4 drives the connecting block 5 to move downward, the cooperation of the bolt 10 and the nut 11 fixes the fixed frame 6 and the connecting block 5, the compression spring 7 provides a reverse force to make the right end face of the brush assembly 9 continuously contact the left end face of the filter plate 13, the connecting block 5 drives the fixed frame 6, the compression spring 7, the connecting plate 8 and the brush assembly 9 to move downward as a whole, so that the brush assembly 9 effectively removes the particulate matter accumulated on the filter plate 13 and keeps the state of unobstructed, so that the smoke can be discharged in time and continuously, improving the overall smoke exhaust efficiency, and enabling the fire fighting work to be carried out smoothly, the collection box 20 collects the particulate matter falling downward, when the collection box 20 collects a lot of particulate matter, the telescopic assembly 15 is started, the telescopic assembly 15 drives the baffle 16 and the sealing sleeve 17 to move leftward, so that the discharge port 19 is opened, then the collection box 20 can be taken out and the internal particulate matter is cleaned, when the brush assembly 9 is damaged, the hydraulic cylinder 4 is started, the hydraulic cylinder 4 drives the brush assembly 9 to move downward as a whole, so that the connecting block 5, the fixed frame 6 and the brush assembly 9 are removed from the discharge port 19, then the nut 11 is rotated outward to move away from the bolt 10, and then the bolt 10 is removed, so that the fixed frame 6 and the brush assembly 9 can be taken out and replaced as a whole, and the reverse operation can replace and install, the device can replace the brush assembly 9, and the operation is simple, after the new brush assembly 9 is replaced, the hydraulic cylinder 4 is started, the hydraulic cylinder 4 drives the brush assembly 9 to move upward as a whole, so that the brush assembly 9 enters the placement groove in the upper end inner wall of the exhaust duct 1, at this time the filter plate 13 can be taken out through the discharge port 19 for thorough cleaning, and the reverse operation can be installed after cleaning, the limiting frame 12 limits the filter plate 13, the elastic rubber sleeve 14 elastically deforms to seal and fix the connection between the filter plate 13 and the exhaust duct 1, then the cleaned collection box 20 can be placed back to the original position, the first magnet 21 and the second magnet 22 are magnetically attracted and fixed on the discharge port 19, the telescopic assembly 15 is started, the telescopic assembly 15 drives the baffle 16 and the sealing sleeve 17 to move rightward as a whole, closes the discharge port 19, the sealing sleeve 17 seals the connection between the baffle 16 and the discharge port 19, and the supporting plate 18 limits and supports the baffle 16.
[0028] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A building fire engineering automatic smoke exhaust device, comprising a smoke exhaust duct (1) and a smoke exhaust fan (2), characterized in that: The smoke exhaust duct (1) is internally provided with a smoke exhaust fan (2), the upper end of the smoke exhaust duct (1) is provided with a protective shell (3), the inside of the protective shell (3) is internally provided with a hydraulic cylinder (4), the lower end of the hydraulic cylinder (4) is fixedly connected with a connecting block (5), the right end inside of the connecting block (5) is provided with a fixed frame (6), the inside of the fixed frame (6) is fixedly connected with a compression spring (7), the other end of the compression spring (7) is fixedly connected with a connecting plate (8), the right end of the connecting plate (8) is fixedly connected with a brush assembly (9), the inside of the connecting block (5) penetrates through a bolt (10), the upper end outside of the bolt (10) is detachably threadedly connected with a nut (11), the inner wall of the smoke exhaust duct (1) is fixedly connected with a limiting frame (12), the inside of the smoke exhaust duct (1) is placed with a filter plate (13), the outside of the filter plate (13) is provided with an elastic rubber sleeve (14), the lower end of the smoke exhaust duct (1) is fixedly connected with an extension assembly (15), the left end of the extension assembly (15) is fixedly connected with a baffle (16), the outside of the baffle (16) is fixedly connected with a sealing sleeve (17), the lower end of the smoke exhaust duct (1) is fixedly connected with a supporting plate (18), the lower end of the smoke exhaust duct (1) is provided with a discharge port (19), the inside of the discharge port (19) is placed with a collecting box (20), the right end inside of the collecting box (20) is fixedly connected with a first magnet (21), the right end of the discharge port (19) is fixedly connected with a second magnet (22).
2. The automatic smoke exhaust device for building fire engineering according to claim 1, characterized in that: The inside of the smoke exhaust duct (1) is hollow, the smoke exhaust fan (2) is located on the right side of the limiting frame (12), the lower part of the hydraulic cylinder (4) penetrates into the inside of the smoke exhaust duct (1).
3. The automatic smoke exhaust device for building fire engineering according to claim 1, characterized in that: The connecting block (5) is located in the inside of the smoke exhaust duct (1), the compression springs (7) are a plurality in number and are uniformly arranged, the outside of the connecting plate (8) and the right end inside of the fixed frame (6) are slidingly connected.
4. The automatic smoke exhaust device for building fire engineering according to claim 1, characterized in that: The right end face of the brush assembly (9) and the left end face of the filter plate (13) are attached, the bolt (10) penetrates through the connecting block (5) and the fixed frame (6), the right end face of the filter plate (13) and the left end face of the limiting frame (12) are attached.
5. The automatic smoke exhaust device for building fire engineering according to claim 1, characterized in that: The outside of the elastic rubber sleeve (14) and the inner wall of the smoke exhaust duct (1) are closely attached, the upper end face of the sealing sleeve (17) and the lower end face of the discharge port (19) are attached, the first magnet (21) and the second magnet (22) are magnetically attracted, and the collecting box (20) is located above the sealing sleeve (17).