Anti-blocking fire alarm device and method for fire engineering

Abstract

The invention relates to the technical field of fire alarm, in particular to an anti-blocking fire alarm device and method for fire engineering, and the device comprises a housing, and the interior of the upper end of the housing is provided with a mounting plate and a buckle assembly; a supporting ring is fixedly connected to the middle inside the shell, a second mounting disc is fixedly connected to the upper end of the supporting ring through bolts, a power mechanism is arranged at the upper end of the second mounting disc, a reciprocating swing mechanism is arranged at the lower end of the second mounting disc, and the lower end of the reciprocating swing mechanism is located at the lower end outside the shell; a second filter screen is fixedly connected into the lower end of the shell. A cleaning brush and a fixing assembly are arranged at the lower end of the shell. The lower end of the second mounting disc is fixedly connected with a circuit board. The lower end of the circuit board is fixedly connected with a sensor and a buzzer. The upper end of the second mounting disc is fixedly connected with a storage battery. When the second filter screen is cleaned, manual cleaning is not needed, meanwhile, the passing rate of smoke is increased, and smoke particles in air can be better detected by an inductor.

Description

Technical Field

[0001] The present invention relates to the technical field of fire alarms, and in particular to an anti-blocking fire alarm device and method for fire protection engineering. Background Art

[0002] A fire alarm is a device used to monitor fires and sound alarms. There are many types of fire alarms and their applications are very wide. Among them, the photoelectric smoke alarm is a common fire alarm device. The photoelectric smoke alarm scatters and refracts the light of the LED lamp through smoke particles, causing the light path to shift and illuminate the photodiode, thereby triggering the buzzer.

[0003] Chinese invention patent ZL202322420325.2 discloses a fire alarm device, which is installed on the ceiling. The ceiling is provided with a mounting hole. The fire alarm device includes a shell, an alarm component and an elastic member, wherein: the shell includes an exposed portion and an insertion portion provided with a mounting cavity, and the insertion portion can be inserted into the mounting hole; the alarm component is accommodated in the mounting cavity; the elastic member is arranged on the insertion portion, and the elastic member has a stable state and a deformed state. In the stable state, the elastic member and the exposed portion are respectively in contact with the two side surfaces of the ceiling. In the deformed state, the elastic member is deformed and can be inserted into or out of the mounting hole with the insertion portion. In this way, the exposed volume of the fire alarm device can be reduced, the aesthetics can be improved, and the risk of the fire alarm device being hit and falling can be reduced, thereby reducing safety hazards; and the fire alarm device does not need to be installed on the ceiling using a quick-release plate, the number of parts is small, and the disassembly and assembly process is simple and convenient, which is convenient for users to operate.

[0004] However, although the above-mentioned fire alarm device can be easily installed, when in use, in order to prevent foreign dust particles, fluff fibers and other impurities from entering the device and affecting the normal use of the fire alarm device, it is necessary to install a filter at the air inlet of the device for filtering. After the filter is installed for a long time, a large amount of dust will be absorbed on the surface of the filter. In order to prevent the dust from clogging the filter, it is necessary to clean it manually. Since the device is installed at a high place, it is more troublesome to clean the filter, which affects the work efficiency. Therefore, it is urgent to solve this situation. Summary of the invention

[0005] In view of this, the present invention provides an anti-blocking fire alarm device and method for fire protection engineering, and the main technical problem to be solved is: solving the problem that the traditional fire alarm device is troublesome when cleaning the filter.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a fire alarm device for fire protection engineering, comprising a shell, a mounting plate and a buckle assembly are arranged inside the upper end of the shell, the shell is connected to the mounting plate through the buckle assembly, and a mounting hole is opened on the upper surface of the mounting plate; a support ring is fixedly connected to the middle position inside the shell, and a second mounting disk is fixedly connected to the upper end of the support ring by bolts, a power mechanism is arranged at the upper end of the second mounting disk, and a reciprocating swing mechanism is arranged at the lower end of the second mounting disk, and the lower end of the reciprocating swing mechanism is located at the lower end of the shell; a second filter is fixedly connected to the lower end of the shell, a cleaning brush and a fixing assembly are arranged at the lower end of the shell, the cleaning brush corresponds to the second filter one by one, and the reciprocating swing mechanism is connected to the cleaning brush through the fixing assembly; a circuit board is fixedly connected to the lower end of the second mounting disk, a sensor and a buzzer are fixedly connected to the lower end of the circuit board, and the circuit board is electrically connected to the sensor and the buzzer; a battery is fixedly connected to the upper end of the second mounting disk, and the battery is electrically connected to the circuit board.

[0007] By adopting the above technical solution, when in use, the mounting plate is first installed on the ceiling, and then the shell and the mounting plate can be connected together with the cooperation of the snap assembly, thereby achieving the purpose of installing the fire alarm device, and when the second filter needs to be cleaned, the power mechanism works, and the reciprocating swing mechanism and the fixed assembly can drive the cleaning brush to move back and forth on the surface of the second filter, thereby achieving the cleaning of the second filter, which effectively avoids dust clogging the second filter, so that manual cleaning is not required when cleaning the second filter, thereby improving the cleaning effect; when a fire occurs, the sensor senses the smoke particles in the air, and the sensor will control the buzzer to work through the circuit board. The operation of the buzzer can remind people that a fire has occurred, thereby achieving the purpose of fire alarm.

[0008] As a further description of the above technical solution: The power mechanism includes a first support frame, a motor, a transmission shaft, a first bevel gear, a second bevel gear, a bearing seat, a third bevel gear and a fourth bevel gear. The upper end of the second mounting plate is fixedly connected to the first support frame and the bearing seat, the bearing seat is rotatably connected to the transmission shaft, the circumferential surface of the transmission shaft is fixedly connected to the first bevel gear and the third bevel gear, the lower end of the first bevel gear is meshed with the second bevel gear, and the lower end of the third bevel gear is meshed with the fourth bevel gear; the upper end of the first support frame is fixedly connected to the motor, and the output end of the motor is fixedly connected to the transmission shaft.

[0009] By adopting the above technical solution, the motor works, and under the action of the transmission shaft, it can drive the first bevel gear and the third bevel gear to rotate, thereby driving the third bevel gear and the fourth bevel gear to rotate, so as to provide power for the reciprocating swing mechanism.

[0010] As a further description of the above technical solution: The reciprocating swing mechanism includes a rotating cylinder, a first rotating shaft, a first mounting plate, a swing rod, a transmission rod, a second rotating shaft, a first fixed shaft, a disc, and a second fixed shaft, the second mounting plate is rotatably connected to the rotating cylinder and the second fixed shaft, the rotating cylinder is located in the middle position of the second mounting plate, the interior of the rotating cylinder is hollow, the lower end of the rotating cylinder is fixedly connected to the first rotating shaft, the lower end of the first rotating shaft passes through the lower end of the shell body and is rotatably connected to the shell, and the lower end of the first rotating shaft is fixedly connected to the first mounting plate; the circumferential surface of the rotating cylinder is fixedly connected to the swing rod, the lower end of the swing rod away from one end of the rotating cylinder is fixedly connected to the first fixed shaft, and the circumferential surface of the first fixed shaft is rotatably connected to the transmission rod; the upper end of the second rotating shaft is fixedly connected to the fourth bevel gear, the lower end of the second rotating shaft is fixedly connected to the disc, the lower end of the disc is fixedly connected to the second fixed shaft, and the second fixed shaft and the transmission rod are rotatably connected.

[0011] By adopting the above technical solution, when working, as the fourth bevel gear rotates, the disc can be driven to rotate under the action of the second rotating shaft, and then the swing arm can be driven to move under the cooperation of the first fixed shaft, the second fixed shaft and the transmission rod, and the rotating cylinder can be driven to rotate as the swing arm moves, and then the cleaning brush can be driven to move with the cooperation of the fixed assembly, thereby facilitating the cleaning of the second filter screen.

[0012] As a further description of the above technical solution: The axis of the second fixed shaft is not in the same straight line as the axis of the disk, and the second fixed shaft is located at the edge of the disk.

[0013] By adopting the above technical solution, since the second fixed shaft is located at the edge of the disc, when the disc rotates, it can drive the swing rod to swing back and forth, so that the second filter screen can be cleaned back and forth.

[0014] As a further description of the above technical solution: The cam is provided with a first end fixedly connected to the rotation center of the wheel hub, and the second end fixedly connected to the rotation center of the wheel hub is provided with a second end fixedly connected to the wheel hub by a spring.

[0015] By adopting the above technical solution, when the cleaning brush needs to be replaced, by pressing the auxiliary handle, the slide bar can be driven to slide inside the slide groove, thereby compressing the compression spring. As the slide bar moves, when the groove coincides with the circular hole, the auxiliary handle is pressed without moving, and then the cleaning brush is pushed again to make the circular block coincide with the circular hole, and then the cleaning brush is lifted, and the circular block is separated from the circular hole, thus achieving the purpose of disassembling the cleaning brush, thereby facilitating the replacement of a new cleaning brush; then the circular block on the new cleaning brush is matched with the circular hole, Then install the cleaning brush so that the circular clamping block passes through the circular hole and enters the groove. After the circular clamping block enters the groove, release the pressure on the auxiliary handle, and the sliding rod can be driven to reset under the action of the compression spring. As the sliding rod is reset, the circular clamping block is also driven to move, and then the cleaning brush is also driven to move with the cooperation of the connecting column. When the circular clamping block reaches the clamping hole position, the circular clamping block is engaged, thereby achieving the purpose of installing the cleaning brush, making the cleaning brush more convenient and quick to disassemble and assemble, which is conducive to improving the replacement efficiency of the cleaning brush.

[0016] As a further description of the above technical solution: A fixing cylinder is fixedly connected to the side end of the rotating seat, and the fixing cylinder is rotationally connected to the support shaft. A torsion spring is fixedly connected inside the fixing cylinder, and one end of the torsion spring away from the inner wall of the fixing cylinder is fixedly connected to the support shaft.

[0017] By adopting the above technical solution, under the action of the torsion spring, the rotating arm can be driven close to the shell, and then the cleaning brush can be driven close to the second filter screen, so that the cleaning brush is always in contact with the second filter screen, which is conducive to the cleaning brush to better clean the second filter screen.

[0018] As a further description of the above technical solution: The upper end of the second mounting plate is fixedly connected to the second supporting frame, and the second supporting frame is rotatably connected to the third rotating shaft, the upper end of the third rotating shaft is fixedly connected to the second bevel gear, and the lower end of the third rotating shaft is fixedly connected to the fan blades, the upper end of the rotating cylinder is fixedly connected to the air inlet cover, and the fan blades are located inside the air inlet cover, and the circumferential surface of the rotating cylinder is fixedly connected to a fixing rod and a connecting pipe, and the connecting pipe is communicated with the rotating cylinder, and the fixing rod and the connecting pipe are fixedly connected to an air outlet cover at one end away from the rotating cylinder, and the air outlet cover corresponds to the second filter screen one by one, and the connecting pipe is communicated with the air outlet cover.

[0019] By adopting the above technical solution, as the second bevel gear rotates, the fan blades can be driven to rotate under the action of the third rotating shaft. As the fan blades rotate, wind enters the rotating cylinder, then enters the air outlet cover along the connecting pipe, and finally blows out from the air outlet cover. In this way, the blown wind can be blown on the second filter net, and then work with the cleaning brush, so that the dust cleaned by the cleaning brush can be prevented from entering the interior of the shell, while also improving the cleaning effect.

[0020] As a further description of the above technical solution: An air inlet is provided on the circumferential surface of the shell, and the air inlet is located at the upper end of the second mounting plate. A first filter is fixedly connected inside the air inlet.

[0021] By adopting the above technical solution, when the fan blades rotate, the outside air enters the upper end of the shell through the air inlet, thereby facilitating the circulation of air. At the same time, under the action of the first filter, dust in the air can be prevented from entering the interior of the shell, so that the filtered air is blown onto the second filter. Since the air outlet cover is located on the inner side of the second filter, not only the second filter can be cleaned, but also dust can be effectively prevented from entering the interior of the sensor.

[0022] As a further description of the above technical solution: The buckle assembly includes a fixing ring, a slot, a square hole and a square block. The upper end of the shell is fixedly connected to the fixing ring. The inner arc surface of the fixing ring is provided with a slot. The upper end surface of the fixing ring is provided with a square hole. The square hole is connected to the slot. A square block is engaged in the slot. The square block is fixedly connected to the mounting plate. By adopting the above technical solution, when in use, first fix the mounting plate on the ceiling, then match the square card block on the mounting plate with the square hole, and then press the shell to make the square card block enter the card slot along the square hole, and then rotate the shell to make the square card block enter the card slot, so that the purpose of installing the device is achieved, making the device more convenient and quick to install.

[0023] A fire alarm method for fire protection engineering, using the fire alarm device for fire protection engineering, comprises the following steps: S1: Use the mounting plate to install the device at the required location; S2: Sense the concentration of smoke particles through sensors; S3: Feedback the result from the sensor to the buzzer through the circuit board.

[0024] By means of the above technical solution, the anti-blocking fire alarm device and method for fire protection engineering of the present invention has at least the following beneficial effects: 1. Compared with the prior art, the present invention provides a power mechanism, a fixed component, a reciprocating swing mechanism and a cleaning brush. When the second filter needs to be cleaned, the power mechanism works, and the cleaning brush can be driven to swing back and forth on the surface of the second filter with the cooperation of the reciprocating swing mechanism and the fixed component, thereby realizing the cleaning of the second filter. When cleaning the second filter, there is no need for manual cleaning, and at the same time, the smoke passing rate is improved, which is conducive to the sensor to better detect smoke particles in the air.

[0025] 2. Compared with the prior art, the present invention sets a second support frame, a third rotating shaft, fan blades, an air inlet cover, a connecting pipe, a fixing rod and an air outlet cover. When the second bevel gear rotates, the fan blades can be driven to rotate with the cooperation of the third rotating shaft. As the fan blades rotate, the air can be driven to flow quickly, thereby forming wind. After the wind enters the rotating cylinder, it enters the air outlet cover along the connecting pipe, and finally blows out from the air outlet cover. In this way, the blown wind can be blown on the second filter net, and then work with the cleaning brush. In this way, the dust cleaned by the cleaning brush can be prevented from entering the shell, and the cleaning effect is also improved.

[0026] 3. Compared with the prior art, the present invention provides a rotating seat, a rotating arm, a supporting shaft, a slide groove, a sliding rod, a compression spring, a circular hole, a clamping hole, a connecting column, a circular clamping block, a groove and an auxiliary handle. When the cleaning brush needs to be replaced, by pressing the auxiliary handle, the sliding rod can be driven to slide inside the slide groove, thereby compressing the compression spring. As the sliding rod moves, when the groove coincides with the circular hole, the auxiliary handle is pressed and does not move, and then the cleaning brush is pushed to make the circular clamping block coincide with the circular hole, and then the cleaning brush is lifted and pulled, and the circular clamping block is separated from the inside of the circular hole, thereby achieving the purpose of disassembling the cleaning brush, thereby facilitating replacement of a new one. The cleaning brush is then matched with the circular block on the new cleaning brush and the circular hole, and then the cleaning brush is installed so that the circular block passes through the circular hole and enters the groove. After the circular block enters the groove, the pressure on the auxiliary handle is released, and the sliding rod can be driven to reset under the action of the compression spring. As the sliding rod is reset, the circular block is also driven to move, and then the cleaning brush is also driven to move with the cooperation of the connecting column. When the circular block reaches the clamping hole position, the circular block is engaged, thereby achieving the purpose of installing the cleaning brush, making the cleaning brush more convenient and quick to disassemble and assemble, which is conducive to improving the replacement efficiency of the cleaning brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention from the first viewing angle as a whole; Figure 2 It is a schematic diagram of the structure of the second viewing angle of the whole invention; Figure 3 It is a schematic structural diagram of the present invention at a first viewing angle after a front view of the cross section; Figure 4 For the present invention Figure 3 Enlarged view of part A in the middle; Figure 5 For the present invention Figure 3 Enlarged view of part B; Figure 6 It is a schematic structural diagram of the second viewing angle of the present invention after the front view section; Figure 7 For the present invention Figure 6 Enlarged view of part C in the middle; Figure 8 It is a schematic diagram of the structure of the present invention after the right side section; Fig. 9 For the present invention Figure 8 Enlarged view of part D in the middle; Fig.10 This is a schematic diagram of the structure of the buckle assembly after being disassembled in the present invention; Fig.11 It is a schematic diagram of the structure inside the fixing assembly of the present invention; Fig.12For the present invention Fig.11 Enlarged view of part E in the middle; Fig.13 This is a schematic diagram of the structure of the present invention after the fixed component is disassembled from the first perspective; Fig.14 This is a schematic structural diagram of the second viewing angle after the fixed component is disassembled according to the present invention.

[0028] Legend: 1. Shell; 2. Mounting plate; 201. Mounting hole; 3. Buckle assembly; 301. Fixing ring; 302. Slot; 303. Square hole; 304. Square block; 4. First filter; 5. Air inlet; 6. Second filter; 7. Reciprocating swing mechanism; 701. Rotating cylinder; 702. First rotating shaft; 703. First mounting plate; 704. Swinging rod; 705. Transmission rod; 706. Second rotating shaft; 707. First fixed shaft; 708. Disc; 709. Second fixed shaft; 8. Fixing assembly; 801. Rotating seat; 802. Rotating arm; 803. Support shaft; 804. Slide groove; 805. Slide rod; 806. Compression spring; 807. Circular hole; 808. Slot ;809, connecting column;810, circular block;811, groove;812, auxiliary handle;9, cleaning brush;10, power mechanism;1001, first support frame;1002, motor;1003, transmission shaft;1004, first bevel gear;1005, second bevel gear;1006, bearing seat;1007, third bevel gear;1008, fourth bevel gear;11, support ring;12, second mounting plate;13, circuit board;14, sensor;15, fixing rod;16, connecting pipe;17, air outlet cover;18, second support frame;19, third rotating shaft;20, fan blade;21, air inlet cover;22, battery;23, buzzer;24, fixing cylinder;25, torsion spring. DETAILED DESCRIPTION

[0029] Reference Figure 1-14The present invention provides an anti-blocking fire alarm device for fire protection engineering, comprising a shell 1, a mounting plate 2 and a buckle assembly 3 are arranged inside the upper end of the shell 1, the shell 1 is connected to the mounting plate 2 through the buckle assembly 3, and a mounting hole 201 is opened on the upper end surface of the mounting plate 2; a support ring 11 is fixedly connected to the middle position inside the shell 1, and a second mounting plate 12 is fixedly connected to the upper end of the support ring 11 by bolts, a power mechanism 10 is arranged on the upper end of the second mounting plate 12, and a reciprocating swing mechanism 7 is arranged at the lower end of the second mounting plate 12, and the lower end of the reciprocating swing mechanism 7 is located at the shell 1 external lower end; a second filter 6 is fixedly connected inside the lower end of the shell 1, a cleaning brush 9 and a fixing assembly 8 are provided at the lower end of the shell 1, the cleaning brush 9 corresponds to the second filter 6 one by one, and the reciprocating swing mechanism 7 is connected to the cleaning brush 9 through the fixing assembly 8; a circuit board 13 is fixedly connected to the lower end of the second mounting plate 12, a sensor 14 and a buzzer 23 are fixedly connected to the lower end of the circuit board 13, and the circuit board 13 is electrically connected to the sensor 14 and the buzzer 23; a battery 22 is fixedly connected to the upper end of the second mounting plate 12, and the battery 22 is electrically connected to the circuit board 13.

[0030] By adopting the above technical solution, when in use, the mounting plate 2 is first installed on the ceiling, and then the shell 1 and the mounting plate 2 can be connected together with the cooperation of the snap assembly 3, so as to achieve the purpose of installing the fire alarm device. When the second filter 6 needs to be cleaned, the power mechanism 10 works, and the cleaning brush 9 can be driven to move back and forth on the surface of the second filter 6 with the cooperation of the reciprocating swing mechanism 7 and the fixing assembly 8, so as to achieve the cleaning of the second filter 6, which effectively avoids dust clogging the second filter 6, so that manual cleaning is not required when cleaning the second filter 6, thereby improving the cleaning effect; when a fire occurs, the sensor 14 senses the smoke particles in the air, and at this time the sensor 14 will control the buzzer 23 to work through the circuit board 13, and the work of the buzzer 23 can remind people that a fire has occurred, so as to achieve the purpose of the fire alarm.

[0031] The power mechanism 10 includes a first support frame 1001, a motor 1002, a transmission shaft 1003, a first bevel gear 1004, a second bevel gear 1005, a bearing seat 1006, a third bevel gear 1007 and a fourth bevel gear 1008. The upper end of the second mounting plate 12 is fixedly connected to the first support frame 1001 and the bearing seat 1006. The transmission shaft 1003 is rotatably connected inside the bearing seat 1006. The circumferential surface of the transmission shaft 1003 is fixedly connected to the first bevel gear 1004 and the third bevel gear 1007. The lower end of the first bevel gear 1004 is meshed with the second bevel gear 1005, and the lower end of the third bevel gear 1007 is meshed with the fourth bevel gear 1008; the upper end of the first support frame 1001 is fixedly connected to the motor 1002, and the output end of the motor 1002 is fixedly connected to the transmission shaft 1003.

[0032] By adopting the above technical solution, the motor works, and under the action of the transmission shaft 1003, it can drive the first bevel gear 1004 and the third bevel gear 1007 to rotate, thereby driving the third bevel gear 1007 and the fourth bevel gear 1008 to rotate, so as to provide power for the reciprocating swing mechanism 7.

[0033] The reciprocating swing mechanism 7 includes a rotating cylinder 701, a first rotating shaft 702, a first mounting plate 703, a swing rod 704, a transmission rod 705, a second rotating shaft 706, a first fixed shaft 707, a disc 708 and a second fixed shaft 709. The second mounting plate 12 is internally connected with the rotating cylinder 701 and the second fixed shaft 709. The rotating cylinder 701 is located in the middle of the second mounting plate 12. The interior of the rotating cylinder 701 is hollow. The lower end of the rotating cylinder 701 is fixedly connected with the first rotating shaft 702. The lower end of the first rotating shaft 702 passes through the lower end of the shell 1 and rotates with the shell 1. The first rotating shaft 702 is connected with the first mounting disk 703 at the lower end; the circumferential surface of the rotating cylinder 701 is fixedly connected with the swing rod 704, the lower end of the swing rod 704 away from the rotating cylinder 701 is fixedly connected with the first fixed shaft 707, the circumferential surface of the first fixed shaft 707 is rotatably connected with the transmission rod 705; the upper end of the second rotating shaft 706 is fixedly connected with the fourth bevel gear 1008, the lower end of the second rotating shaft 706 is fixedly connected with the disk 708, the lower end of the disk 708 is fixedly connected with the second fixed shaft 709, and the second fixed shaft 709 is rotatably connected with the transmission rod 705.

[0034] By adopting the above technical solution, when working, as the fourth bevel gear 1008 rotates, the disc 708 can be driven to rotate under the action of the second rotating shaft 706, and then the swing rod 704 can be driven to move with the cooperation of the first fixed shaft 707, the second fixed shaft 709 and the transmission rod 705. As the swing rod 704 moves, the rotating cylinder 701 can be driven to rotate, and then the cleaning brush 9 can be driven to move with the cooperation of the fixed component 8, so as to facilitate the cleaning of the second filter screen 6.

[0035] The axis of the second fixed shaft 709 is not on the same straight line as the axis of the disk 708 , and the second fixed shaft 709 is located at the edge of the disk 708 .

[0036] By adopting the above technical solution, since the second fixed shaft 709 is located at the edge of the disc 708, when the disc 708 rotates, it can drive the swing rod 704 to swing back and forth, so that the second filter screen 6 can be cleaned back and forth.

[0037] The fixing assembly 8 includes a rotating seat 801, a rotating arm 802, a support shaft 803, a slide groove 804, a slide rod 805, a compression spring 806, a circular hole 807, a clamping hole 808, a connecting column 809, a circular clamping block 810, a groove 811 and an auxiliary handle 812. The upper end of the first mounting plate 703 is fixedly connected to the rotating seat 801, the rotating seat 801 is rotatably connected to the support shaft 803, the circumferential surface of the support shaft 803 is fixedly connected to the rotating arm 802, the lower end surface of the rotating arm 802 is provided with a slide groove 804, the slide groove 804 is slidably connected to the slide rod 805, the end surface of the slide rod 805 is T-shaped, and the lower end of the slide rod 805 is fixedly connected to the auxiliary handle 812. A compression spring 806 is fixedly connected inside the slide groove 804, and the compression spring 806 is fixedly connected to the slide rod 805. A groove 811 is provided on the upper end surface of the slide rod 805; a clamping hole 808 and a circular hole 807 are provided on the upper end surface of the rotating arm 802. The clamping hole 808 is connected to the circular hole 807, and the width of the clamping hole 808 is smaller than the diameter of the circular hole 807. A connecting column 809 is slidably connected inside the clamping hole 808. One end of the connecting column 809 is fixedly connected to the cleaning brush 9, and the other end of the connecting column 809 is fixedly connected to a circular clamping block 810. The diameter of the circular clamping block 810 is larger than the width of the clamping hole 808 and smaller than the diameter of the circular hole 807. The circular clamping block 810 cooperates with the groove 811.

[0038] By adopting the above technical solution, when the cleaning brush 9 needs to be replaced, by pressing the auxiliary handle 812, the slide bar 805 can be driven to slide inside the slide groove 804, thereby compressing the compression spring 806. As the slide bar 805 moves, when the groove 811 coincides with the circular hole 807, the auxiliary handle 812 is pressed without moving, and then the cleaning brush 9 is pushed again, so that the circular block 810 coincides with the circular hole 807, and then the cleaning brush 9 is lifted, and the circular block 810 is separated from the circular hole 807. In this way, the purpose of disassembling the cleaning brush 9 is achieved, thereby facilitating the replacement of the new cleaning brush 9; then the circular block 810 on the new cleaning brush 9 is matched with the circular hole 807, Then install the cleaning brush 9 so that the circular clamping block 810 passes through the circular hole 807 and enters the interior of the groove 811. After the circular clamping block 810 enters the interior of the groove 811, release the pressure on the auxiliary handle 812, and the slide bar 805 can be driven to reset under the action of the compression spring 806. As the slide bar 805 is reset, the circular clamping block 810 is also driven to move, and then the cleaning brush 9 is also driven to move with the cooperation of the connecting column 809. When the circular clamping block 810 reaches the position of the clamping hole 808, the circular clamping block 810 is engaged, thereby achieving the purpose of installing the cleaning brush 9, making the cleaning brush 9 more convenient and quick to disassemble and assemble, which is conducive to improving the replacement efficiency of the cleaning brush 9.

[0039] A fixed cylinder 24 is fixedly connected to the side end of the rotating seat 801 , and the fixed cylinder 24 is rotatably connected to the support shaft 803 . A torsion spring 25 is fixedly connected inside the fixed cylinder 24 , and one end of the torsion spring 25 away from the inner wall of the fixed cylinder 24 is fixedly connected to the support shaft 803 .

[0040] By adopting the above technical solution, under the action of the torsion spring 25, the rotating arm 802 can be driven to approach the shell 1, and then the cleaning brush 9 can be driven to approach the second filter screen 6, so that the cleaning brush 9 is always in contact with the second filter screen 6, which is conducive to the cleaning brush 9 to better clean the second filter screen 6.

[0041] A second support frame 18 is fixedly connected to the upper end of the second mounting plate 12, and a third rotating shaft 19 is rotatably connected inside the second support frame 18. The upper end of the third rotating shaft 19 is fixedly connected to the second bevel gear 1005, and the lower end of the third rotating shaft 19 is fixedly connected to the fan blade 20. The upper end of the rotating cylinder 701 is fixedly connected to the air inlet cover 21, and the fan blade 20 is located inside the air inlet cover 21. The circumferential surface of the rotating cylinder 701 is fixedly connected to a fixing rod 15 and a connecting pipe 16, and the connecting pipe 16 is connected to the rotating cylinder 701. The fixing rod 15 and the connecting pipe 16 are fixedly connected to an air outlet cover 17 at one end away from the rotating cylinder 701. The air outlet cover 17 corresponds one-to-one to the second filter screen 6, and the connecting pipe 16 is connected to the air outlet cover 17.

[0042] By adopting the above technical solution, as the second bevel gear 1005 rotates, the fan blades 20 can be driven to rotate under the action of the third rotating shaft 19. As the fan blades 20 rotate, wind enters the rotating cylinder 701, then enters the air outlet hood 17 along the connecting pipe 16, and finally blows out from the air outlet hood 17. In this way, the blown wind can blow on the second filter screen 6, and then work with the cleaning brush 9, so that the dust cleaned by the cleaning brush 9 can be prevented from entering the interior of the shell 1, and the cleaning effect is also improved.

[0043] An air inlet 5 is formed on the circumferential surface of the shell 1 . The air inlet 5 is located at the upper end of the second mounting plate 12 . A first filter screen 4 is fixedly connected to the inside of the air inlet 5 .

[0044] By adopting the above technical solution, when the fan blades 20 rotate, the outside air enters the upper end of the shell 1 through the air inlet 5, thereby facilitating the circulation of air. At the same time, under the action of the first filter 4, dust in the air can be prevented from entering the interior of the shell 1, so that the filtered air is blown onto the second filter 6. Since the air outlet cover 17 is located on the inner side of the second filter 6, not only can the second filter 6 be cleaned, but also dust can be effectively prevented from entering the interior of the sensor 14.

[0045] The buckle assembly 3 includes a fixing ring 301, a slot 302, a square hole 303 and a square clamping block 304. The fixing ring 301 is fixedly connected to the upper end of the housing 1. The inner arc surface of the fixing ring 301 is provided with a slot 302. The upper end surface of the fixing ring 301 is provided with a square hole 303. The square hole 303 is connected to the slot 302. The slot 302 is engaged with a square clamping block 304. The square clamping block 304 is fixedly connected to the mounting plate 2. By adopting the above technical solution, when in use, first fix the mounting plate 2 on the ceiling, then match the square block 304 on the mounting plate 2 with the square hole 303, and then press the shell 1 so that the square block 304 enters the slot 302 along the square hole 303, and then rotate the shell 1 so that the square block 304 is stuck into the slot 302, so that the purpose of installing the device is achieved, making the device more convenient and quick to install.

[0046] A fire alarm method for fire protection engineering, using the fire alarm device for fire protection engineering, comprises the following steps: S1: Use the mounting plate 2 to install the device at the required location; S2: sensing the smoke particle concentration through the sensor 14; S3: Feedback the result from the sensor 14 to the buzzer 23 through the circuit board 13 .

[0047] When in use, by installing the device on the ceiling, when a fire occurs, the smoke in the air enters the shell 1, and the sensor 14 (the sensor 14 is an ion smoke detector) detects the smoke. When the smoke concentration exceeds a certain range, the feedback of the sensor 14 is transmitted to the circuit board 13, and then the buzzer 23 is controlled by the circuit board 13. Under the action of the buzzer 23, the purpose of the alarm can be achieved, thereby reminding people of the occurrence of the fire, which is conducive to people to put out the fire in time.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-blocking fire alarm device for fire protection engineering, comprising a housing (1), characterized in that: A mounting plate (2) and a buckle assembly (3) are provided inside the upper end of the shell (1); the shell (1) is connected to the mounting plate (2) via the buckle assembly (3); a mounting hole (201) is provided on the upper end surface of the mounting plate (2); a support ring (11) is fixedly connected to a middle position inside the shell (1); a second mounting plate (12) is fixedly connected to the upper end of the support ring (11) via bolts; a power mechanism (10) is provided at the upper end of the second mounting plate (12); a reciprocating swing mechanism (7) is provided at the lower end of the second mounting plate (12); the lower end of the reciprocating swing mechanism (7) is located at the lower end of the outer portion of the shell (1); the lower end of the shell (1) is fixedly connected to the inner portion of the lower end of the shell (1); A second filter (6) is connected, a cleaning brush (9) and a fixing assembly (8) are arranged at the lower end of the housing (1), the cleaning brush (9) corresponds to the second filter (6) one by one, and the reciprocating swing mechanism (7) is connected to the cleaning brush (9) via the fixing assembly (8); the lower end of the second mounting plate (12) is fixedly connected to a circuit board (13), the lower end of the circuit board (13) is fixedly connected to a sensor (14) and a buzzer (23), and the circuit board (13) is electrically connected to the sensor (14) and the buzzer (23); the upper end of the second mounting plate (12) is fixedly connected to a battery (22), and the battery (22) is electrically connected to the circuit board (13).

2. The anti-blocking fire alarm device for fire protection engineering according to claim 1, characterized in that: The power mechanism (10) comprises a first support frame (1001), a motor (1002), a transmission shaft (1003), a first bevel gear (1004), a second bevel gear (1005), a bearing seat (1006), a third bevel gear (1007) and a fourth bevel gear (1008); the first support frame (1001) and the bearing seat (1006) are fixedly connected to the upper end of the second mounting plate (12); the transmission shaft (1003) is rotatably connected to the interior of the bearing seat (1006). 03), the circumferential surface of the transmission shaft (1003) is fixedly connected to a first bevel gear (1004) and a third bevel gear (1007), the lower end of the first bevel gear (1004) is meshed with a second bevel gear (1005), and the lower end of the third bevel gear (1007) is meshed with a fourth bevel gear (1008); the upper end of the first support frame (1001) is fixedly connected to a motor (1002), and the output end of the motor (1002) is fixedly connected to the transmission shaft (1003).

3. The anti-blocking fire alarm device for fire protection engineering according to claim 2, characterized in that: The reciprocating swing mechanism (7) comprises a rotating cylinder (701), a first rotating shaft (702), a first mounting plate (703), a swinging rod (704), a transmission rod (705), a second rotating shaft (706), a first fixed shaft (707), a disk (708) and a second fixed shaft (709); the rotating cylinder (701) and the second fixed shaft (709) are rotatably connected inside the second mounting plate (12); the rotating cylinder (701) is located in the middle of the second mounting plate (12); the interior of the rotating cylinder (701) is hollow; the lower end of the rotating cylinder (701) is fixedly connected to the first rotating shaft (702); the lower end of the first rotating shaft (702) passes through the lower end of the shell (1) and is spaced from the shell (1). The first rotating shaft (702) is rotatably connected, wherein the lower end of the first rotating shaft (702) is fixedly connected to a first mounting disk (703); the circumferential surface of the rotating cylinder (701) is fixedly connected to a swing rod (704); the lower end of the swing rod (704) away from one end of the rotating cylinder (701) is fixedly connected to a first fixed shaft (707); the circumferential surface of the first fixed shaft (707) is rotatably connected to a transmission rod (705); the upper end of the second rotating shaft (706) is fixedly connected to a fourth bevel gear (1008); the lower end of the second rotating shaft (706) is fixedly connected to a disk (708); the lower end of the disk (708) is fixedly connected to a second fixed shaft (709); the second fixed shaft (709) and the transmission rod (705) are rotatably connected.

4. The anti-blocking fire alarm device for fire protection engineering according to claim 3, characterized in that: The axis of the second fixed shaft (709) is not on the same straight line as the axis of the disk (708), and the second fixed shaft (709) is located at the edge of the disk (708).

5. The anti-blocking fire alarm device for fire protection engineering according to claim 3, characterized in that: The fixing assembly (8) comprises a rotating seat (801), a rotating arm (802), a support shaft (803), a sliding groove (804), a sliding rod (805), a compression spring (806), a circular hole (807), a clamping hole (808), a connecting column (809), a circular clamping block (810), a groove (811) and an auxiliary handle (812); the upper end of the first mounting plate (703) is fixedly connected to the rotating seat (801); the supporting shaft (803) is rotatably connected inside the rotating seat (801); the rotating arm (802) is fixedly connected to the circumferential surface of the support shaft (803); the lower end surface of the rotating arm (802) is provided with a sliding groove (804); the sliding groove (804) is slidably connected to the sliding rod (805); the end surface of the sliding rod (805) is T-shaped; the lower end of the sliding rod (805) is fixedly connected to the auxiliary handle (812); A compression spring (806) is fixedly connected inside the slide groove (804), and the compression spring (806) is fixedly connected to the slide rod (805). A groove (811) is provided on the upper end surface of the slide rod (805); a clamping hole (808) and a circular hole (807) are provided on the upper end surface of the rotating arm (802), and the clamping hole (808) is connected to the circular hole (807). The width of the clamping hole (808) is smaller than the diameter of the circular hole (807). A connecting column (809) is slidably connected inside the clamping hole (808), and one end of the connecting column (809) is fixedly connected to the cleaning brush (9), and the other end of the connecting column (809) is fixedly connected to a circular clamping block (810), and the diameter of the circular clamping block (810) is larger than the width of the clamping hole (808) and smaller than the diameter of the circular hole (807), and the circular clamping block (810) matches the groove (811).

6. The anti-blocking fire alarm device for fire protection engineering according to claim 5, characterized in that: A fixed cylinder (24) is fixedly connected to the side end of the rotating seat (801), and the fixed cylinder (24) is rotationally connected to the support shaft (803). A torsion spring (25) is fixedly connected inside the fixed cylinder (24), and one end of the torsion spring (25) away from the inner wall of the fixed cylinder (24) is fixedly connected to the support shaft (803).

7. The anti-blocking fire alarm device for fire protection engineering according to claim 3, characterized in that: The second mounting plate (12) is fixedly connected to the upper end of a second support frame (18), and a third rotating shaft (19) is rotatably connected inside the second support frame (18). The upper end of the third rotating shaft (19) is fixedly connected to the second bevel gear (1005), and the lower end of the third rotating shaft (19) is fixedly connected to a fan blade (20). The upper end of the rotating cylinder (701) is fixedly connected to an air inlet cover (21), and the fan blade (20) is located inside the air inlet cover (21). The circumferential surface of the rotating cylinder (701) is fixedly connected to a fixing rod (15) and a connecting pipe (16), and the connecting pipe (16) is connected to the rotating cylinder (701). An end of the fixing rod (15) and the connecting pipe (16) away from the rotating cylinder (701) is fixedly connected to an air outlet cover (17), and the air outlet cover (17) corresponds to the second filter screen (6) one by one, and the connecting pipe (16) is connected to the air outlet cover (17).

8. The anti-blocking fire alarm device for fire protection engineering according to claim 1, characterized in that: An air inlet (5) is provided on the circumferential surface of the shell (1), the air inlet (5) is located at the upper end of the second mounting plate (12), and a first filter screen (4) is fixedly connected to the inside of the air inlet (5).

9. The anti-blocking fire alarm device for fire protection engineering according to claim 1, characterized in that: The buckle assembly (3) comprises a fixing ring (301), a clamping groove (302), a square hole (303) and a square clamping block (304); the fixing ring (301) is fixedly connected to the upper end of the housing (1); the inner arc surface of the fixing ring (301) is provided with a clamping groove (302); the upper end surface of the fixing ring (301) is provided with a square hole (303); the square hole (303) is communicated with the clamping groove (302); the inside of the clamping groove (302) is clamped with a square clamping block (304); and the square clamping block (304) is fixedly connected to the mounting plate (2).

10. A fire alarm method for fire protection engineering, characterized in that: The use of the anti-blocking fire alarm device for fire protection engineering according to any one of claims 1 to 9 comprises the following steps: S1: Use the mounting plate (2) to install the device at the required location; S2: sensing smoke particle concentration through a sensor (14); S3: Feedback the result from the sensor (14) to the buzzer (23) through the circuit board (13).

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