Visual intelligent composite fire automatic alarm device based on internet platform

Abstract

The application discloses an internet platform-based visual intelligent composite fire-fighting automatic alarm device, and belongs to the fire-fighting field.The internet platform-based visual intelligent composite fire-fighting automatic alarm device comprises a mounting plate, an air inlet bin is assembled at the bottom of the mounting plate, a fixing bin is assembled at the bottom of the air inlet bin, and a monitoring head connectable with an internet platform is assembled at the bottom of the fixing bin.The internet platform-based visual intelligent composite fire-fighting automatic alarm device is provided with an extraction fan, which drives a rotating rod one assembled at the bottom of an output shaft to rotate, and cooperates with a brush plate, a rotating rod two, a gear one, an arc-shaped toothed rod one, an extruding rod one, a spring one, a transmission plate one, a stress rod one and a limiting block, so that the cleaning effect of the brush is improved, dust is stored in a collecting bin, the possibility of dust reattachment is reduced, and the detection precision of the smoke alarm is further improved.

Description

Technical Field

[0001] This invention belongs to the field of fire protection, specifically relating to a visual intelligent composite automatic fire alarm device based on an internet platform. Background Technology

[0002] With the acceleration of urbanization, fire prevention and control in high-rise buildings, underground spaces, and large-span industrial plants face severe challenges. Traditional fire alarm systems mainly rely on single-parameter detection. Future fire alarm devices will develop towards integrated sensing and computing, visual and intelligent fusion, cloud-edge collaboration, and global interconnection.

[0003] Chinese Patent CN114140971B, published on May 9, 2023, discloses a fire alarm device based on a fire emergency system. The device includes a housing base, a servo motor fixedly mounted on the upper surface of the housing base, and a mounting component provided on the lower surface of one end of the housing base. An alarm is fixedly connected to the lower end of the mounting component, and a cleaning component is provided on the lower surface of the housing base at the rear side of the alarm.

[0004] The aforementioned application document describes using a rotatable L-shaped cleaning brush to remove dust from the smoke detector and prevent it from affecting the detector's detection accuracy. However, even after the dust is brushed off, there is still a possibility that the dust may remain floating around the smoke detector and re-adhere after a period of use, thus still affecting the use of the smoke detector. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a visual intelligent composite automatic fire alarm device based on an internet platform, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides a visual intelligent composite automatic fire alarm device based on an internet platform, comprising a mounting plate, an air inlet chamber mounted at the bottom of the mounting plate, a fixed chamber mounted at the bottom of the air inlet chamber, a monitoring head that can be connected to an internet platform mounted at the bottom of the fixed chamber, a smoke detector that can be connected to an internet platform mounted on the side of the fixed chamber, an extraction fan mounted at the bottom of the mounting plate, a rotating rod one mounted at the bottom of the output shaft of the extraction fan, a brush plate fixedly connected to the outer side of the rotating rod one, a rotating rod two rotatably connected to the inside of the brush plate, a detachable processing brush mounted on the side of the rotating rod two, a transmission component for transmission between the rotating rod one and the processing brush, and a removable collection chamber mounted inside the fixed chamber. The fixed chamber is equipped with a striking component and a pressing component.

[0007] Preferably, the transmission component includes a gear fixed to the outside of the rotating rod, an arc-shaped toothed rod fixedly connected to the side of the fixed chamber, a pressing rod fixedly connected to the bottom of the arc-shaped toothed rod, a transmission plate connected to the inside of the brush plate via a spring, a force-bearing rod fixedly connected to the side of the transmission plate, and a limiting block fixedly connected to the top of the transmission plate. By configuring this device, the cleaning effect of the brush can be improved while storing dust in the collection chamber, reducing the possibility of dust re-adhesion and further improving the detection accuracy of the smoke alarm.

[0008] Preferably, there are two force-bearing rods, which are symmetrically distributed about the central axis of the transmission plate.

[0009] Preferably, the limiting block is located on the side of the first gear, and the limiting block is in contact with the first gear.

[0010] Preferably, the striking assembly includes a second spring mounted on one side of an arc-shaped rack, a second transmission plate mounted on the side of the second spring, a through transmission rod fixedly connected inside the second transmission plate, a second pressing rod fixedly connected to the side of the first transmission rod, a first fixing plate fixedly connected to the side of the fixing chamber, a sliding rod connected to the bottom of the first fixing plate via a third spring, a second force-bearing rod fixedly connected to the side of the sliding rod, a second rack fixedly connected to the bottom of the second force-bearing rod, a third rotating rod rotatably connected to the side of the fixing chamber, and a second gear and an elastic cam fixedly connected to the outer side of the third rotating rod, the second gear meshing with the second rack. By configuring the striking assembly, the elastic cam intermittently strikes the collection chamber and vibrates it, preventing dust from accumulating in one place within the collection chamber and improving its space utilization.

[0011] Preferably, there are two springs, which are symmetrically distributed about the central axis of the transmission plate.

[0012] Preferably, the second force-bearing rod is located on the side of the second extrusion rod, and the second force-bearing rod is in contact with the second extrusion rod.

[0013] Preferably, the pressing assembly includes a fixed plate two fixed inside the air inlet chamber, a fixed plate three fixedly connected inside the fixed chamber, a pressing block fixedly connected to the outer side of the rotating rod one, a transmission rod two connected to the side of the fixed plate two via a spring six, a force-bearing rod three connected to the top of the fixed plate three via a spring four, a ring fixedly connected to the side of the force-bearing rod three, and a force-bearing plate connected to the top of the brush plate via a spring five. By configuring the pressing assembly, the device applies additional pressure to the top of the brush plate most of the time during use, thereby improving the device's effectiveness in handling the top of the smoke alarm.

[0014] Preferably, the second transmission rod is located on the side of the extrusion block, and the second transmission rod is in contact with the extrusion block.

[0015] Preferably, the force-bearing rod three is located at the bottom of the transmission rod two, and the force-bearing rod three is in contact with the transmission rod two.

[0016] The advantages of this application are: (1) In this application, the extraction fan is used to drive the rotating rod 1 mounted at the bottom of its output shaft to rotate. In conjunction with the brush plate, rotating rod 2, gear 1, arc-shaped toothed rod 1, squeezing rod 1, spring 1, transmission plate 1, force rod 1 and limiting block, the dust can be stored in the collection chamber while improving the cleaning effect of the brush, reducing the possibility of dust re-attachment and further improving the detection accuracy of the smoke alarm.

[0017] (2) In this application, when gear one rotates to a transmission rod on arc-shaped rack one and then moves away from that point, it works in conjunction with spring two, transmission plate two, pressing rod two, fixed plate one, spring three, sliding rod, force rod two, rack two, rotating rod three and gear two to make the elastic cam intermittently strike the collection bin and cause it to vibrate, preventing dust from accumulating in one place in the collection bin and improving its space utilization.

[0018] (3) In this application, when the rotating rod 1 rotates, it can drive the pressing block fixedly connected to it to rotate. In conjunction with the fixed plate 2, fixed plate 3, spring 6, transmission rod 2, spring 4, force rod 3, ring, spring 5 and force plate, the device applies additional pressure to the top of the brush plate most of the time during use, thereby improving the treatment effect of the device on the top of the smoke alarm. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the overall appearance of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the overall cross-sectional three-dimensional structure from another perspective of the present invention; Figure 4 This is a three-dimensional structural diagram of some parts of the present invention; Figure 5 This is a three-dimensional structural diagram of some parts of the present invention; Figure 6 This is a three-dimensional structural diagram of the striking component of the present invention; Figure 7 This is a three-dimensional structural diagram of some parts of the striking component of the present invention; Figure 8This is a three-dimensional structural diagram of the pressing component of the present invention; Figure 9 This is a three-dimensional structural diagram of some parts of the pressing component of the present invention.

[0020] Explanation of key figure labels: 100. Mounting plate; 200. Air inlet chamber; 300. Fixed chamber; 400. Monitoring head; 500. Smoke alarm; 600. Exhaust fan; 701. Rotating rod one; 702. Brush plate; 703. Rotating rod two; 704. Processing brush; 705. Gear one; 706. Arc-shaped gear one; 707. Extrusion rod one; 708. Spring one; 709. Transmission plate one; 710. Force rod one; 711. Limiting block; 712. Collection chamber; 800. Striking assembly; 801. Spring II; 802. Transmission plate II; 803. Transmission rod I; 804. Pressing rod II; 805. Fixing plate I; 806. Spring III; 807. Sliding rod; 808. Force-bearing rod II; 809. Gear II; 810. Rotating rod III; 811. Gear II; 812. Elastic cam; 900. Pressing assembly; 901. Fixing plate two; 902. Fixing plate three; 903. Extrusion block; 904. Spring six; 905. Transmission rod two; 906. Spring four; 907. Force rod three; 908. Ring; 909. Spring five; 910. Force plate. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0022] Example 1, please refer to Figures 1-5 A visual intelligent composite automatic fire alarm device based on an internet platform includes a mounting plate 100. An air intake chamber 200 is mounted at the bottom of the mounting plate 100. A fixed chamber 300 is mounted at the bottom of the air intake chamber 200. A monitoring head 400, connectable to the internet platform, is mounted at the bottom of the fixed chamber 300. A smoke detector 500, also connectable to the internet platform, is mounted on the side of the fixed chamber 300. An extraction fan 600 is mounted at the bottom of the mounting plate 100. The device is mounted in the desired location through the threaded holes on the mounting plate 100. Visual monitoring is performed using the monitoring head 400. The extraction fan 600 is activated to draw outside air into the device through the air intake chamber 200. The air then flows past the smoke detector 500 and is exhausted from the opening on the side of the fixed chamber 300.

[0023] A rotating rod 701 is mounted at the bottom of the output shaft of the extraction fan 600, and a brush plate 702 is fixedly connected to the outside of the rotating rod 701. When the extraction fan 600 is activated, it drives the rotating rod 701 mounted at the bottom of its output shaft to rotate, which in turn drives the brush plate 702 fixedly connected to it to rotate, thus cleaning the dust on the top of the smoke alarm 500.

[0024] A rotating rod 703 is rotatably connected inside the brush plate 702. A detachable treatment brush 704 is mounted on the side of the rotating rod 703. A transmission component for transmission is assembled between the rotating rod 701 and the treatment brush 704. The transmission component includes a gear 705 fixed to the outside of the rotating rod 703. When the brush plate 702 rotates, it drives the rotating rod 703 and the gear 705 located on it to rotate synchronously.

[0025] An arc-shaped gear 706 is fixedly connected to the side of the fixed chamber 300. When gear 705 rotates to the arc-shaped gear 706, gear 705 begins to mesh with the arc-shaped gear 706. As the brush plate 702 is in a revolution state, gear 705 rotates 180° due to the restriction of the arc-shaped gear 706. The rotating gear 705 can drive the rotating rod 703 fixedly connected to it to rotate, so that the rotating rod 703 drives the treatment brush 704 mounted on its side to rotate 180°, and rotates the treatment brush 704 on the other side to the smoke alarm 500.

[0026] A pressing rod 707 is fixedly connected to the bottom of the arc-shaped gear 706. A transmission plate 709 is connected to the inside of the brush plate 702 through a spring 708. A force-bearing rod 710 is fixedly connected to the side of the transmission plate 709. There are two force-bearing rods 710, which are symmetrically distributed about the central axis of the transmission plate 709. A limiting block 711 is fixedly connected to the top of the transmission plate 709. The limiting block 711 is located on the side of the gear 705 and is in contact with the gear 705. When the force-bearing rod 710 rotates to the compression rod 707, the force-bearing rod 710 is compressed by the compression rod 707 and moves. The moving force-bearing rod 710 drives the transmission plate 709, which is fixedly connected to it, to move. At this time, the transmission plate 709 compresses the spring 708 and moves, causing the transmission plate 709 to drive the limiting block 711, which is fixedly connected to it, to move away from the gear 705, thus releasing the restriction on the gear 705.

[0027] The fixed chamber 300 is equipped with a removable collection chamber 712. In this way, the two processing brushes 704 can sequentially process the dust on the smoke alarm 500. The dust swept off flows into the collection chamber 712 at the bottom under the action of the airflow drawn in by the extraction fan 600, reducing the possibility of dust re-adhesion and further improving the detection accuracy of the smoke alarm 500.

[0028] In practical use, the device is assembled into the desired position via the threaded holes on the mounting plate 100. Visual monitoring is performed using the monitoring head 400. The extraction fan 600 is activated to draw air from outside the device into the device through the air inlet chamber 200. The air flows through the smoke detector 500 and then exits from the opening on the side of the fixed chamber 300. The rotating extraction fan 600 drives the rotating rod 701 mounted at the bottom of its output shaft to rotate, causing the rotating rod 701 to rotate the brush plate 702 fixedly connected to it, thus cleaning the dust on the top of the smoke detector 500. The brush plate 702 in its current state can drive the rotating rod 703 and gear 705 located on it to rotate synchronously; when the force rod 710 rotates to the pressing rod 707 first, the force rod 710 is pressed by the pressing rod 707 and moves. The force rod 710 in the moving state drives the transmission plate 709 fixedly connected to it to move. At this time, the transmission plate 709 compresses the spring 708 and moves, causing the transmission plate 709 to drive the limiting block 711 fixedly connected to it to move away from the gear 705, releasing the restriction on the gear 705; subsequently, gear 705... When gear 705 rotates to the arc-shaped gear 706, gear 705 begins to mesh with the arc-shaped gear 706. As the brush plate 702 is in a revolution state, gear 705 rotates 180° due to the restriction of the arc-shaped gear 706. The rotating gear 705 can drive the rotating rod 703 fixedly connected to it to rotate, so that the rotating rod 703 drives the treatment brush 704 mounted on its side to rotate 180°, rotating the treatment brush 704 on the other side to the smoke alarm 500. Subsequently, gear 705 first disengages from the arc-shaped gear 706, so that the treatment brush 704 stops rotating. When the force rod 710 is released from the compression rod 707, the transmission plate 709 is unrestricted and resets under the action of the spring 708. Similarly, the limiting block 711 fixedly connected to the transmission plate 709 is reset, and the gear 705 is re-locked, limiting the processing brush 704 to this state. As the gear 705 rotates intermittently to the arc-shaped toothed rod 706, the two processing brushes 704 can sequentially process the dust on the smoke alarm 500. The swept dust flows into the collection chamber 712 at the bottom under the action of the airflow drawn in by the extraction fan 600.

[0029] Example 2, please refer to Figures 4-7Based on Embodiment 1, a striking assembly 800 is installed inside the fixed chamber 300. The striking assembly 800 includes two springs 801 mounted on the side of the arc-shaped gear 706. The two springs 801 are symmetrically distributed about the central axis of the transmission plate 802. The transmission plate 802 is mounted on the side of the springs 801, and a through transmission rod 803 is fixedly connected inside the transmission plate 802. When the gear 705 rotates to the transmission rod 803 on the arc-shaped gear 706, the gear 705 can squeeze the transmission rod 803. The squeezed transmission rod 803 can then drive the transmission plate 802 fixedly connected to it to move.

[0030] A pressing rod 804 is fixedly connected to the side of the transmission rod 803. When the transmission plate 802 stretches the spring 801 and moves away from the arc-shaped toothed rod 706, the transmission rod 803 in the moving state can drive the pressing rod 804 fixedly connected to it to move.

[0031] A fixing plate 805 is fixedly connected to the side of the fixed chamber 300. A sliding rod 807 is connected to the bottom of the fixing plate 805 via a spring 806. A force-bearing rod 808 is fixedly connected to the side of the sliding rod 807. The force-bearing rod 808 is located to the side of the compression rod 804, and the force-bearing rod 808 is in contact with the compression rod 804. When the compression rod 804 moves, it compresses the force-bearing rod 808, causing the compressed force-bearing rod 808 to move, thus moving the fixedly connected sliding rod 807. At this time, the force-bearing rod 808 and the sliding rod 807 stretch the spring 806 and move away from the fixing plate 805.

[0032] A gear 809 is fixedly connected to the bottom of the force-bearing rod 808. A rotating rod 810 is rotatably connected to the side of the fixed chamber 300. A gear 811 and an elastic cam 812 are fixedly connected to the outer side of the rotating rod 810. The gear 811 meshes with the gear 809. When the force-bearing rod 808 moves, it drives the gear 809 fixedly connected to it to move, causing the gear 809 to drive the gear 811 to rotate. The rotating gear 811 then drives the rotating rod 810 fixedly connected to it to rotate, which in turn drives the elastic cam 812 fixedly connected to it to rotate. This causes the elastic cam 812 to intermittently strike the collection chamber 712 and vibrate it, preventing dust from accumulating in one place and improving the utilization of its space.

[0033] In practical use, when gear 705 rotates to the transmission rod 803 on the arc-shaped rack 706, gear 705 presses against the transmission rod 803. The pressed transmission rod 803 then moves the transmission plate 802, which is fixedly connected to it. This causes the transmission plate 802 to stretch the spring 801 and move away from the arc-shaped rack 706. The moving transmission rod 803 then moves the pressing rod 804, which is fixedly connected to it. The pressing rod 804 presses against the force-bearing rod 808, which in turn moves the sliding rod 807, which is fixedly connected to it. At this time, the force-bearing rod 808 and the sliding rod 807 stretch the spring 806 and move away from the arc-shaped rack 706. When the fixed plate 805 moves to one side, the force-bearing rod 808, which is in a moving state, can drive the rack 809, which is fixedly connected to it, to move. This causes the rack 809 to drive the gear 811, which meshes with it, to rotate. The rotating gear 811, which is in a rotating state, can drive the rotating rod 810, which is fixedly connected to it, to rotate. This causes the rotating rod 810 to drive the elastic cam 812, which is fixedly connected to it, to rotate. As the gear 705 continues to move, the transmission rod 803 and the transmission plate 802 lose their restraint and can continue to reset under the action of the spring 801. Similarly, the elastic cam 812 can reset. The elastic cam 812, which is in a reciprocating rotation state, can intermittently strike the collection chamber 712, causing the collection chamber 712 to vibrate to a certain extent.

[0034] Example 3, please refer to Figures 6-9 Based on Embodiments 1 and 2, a pressing assembly 900 is installed inside the fixed chamber 300. The pressing assembly 900 includes a second fixed plate 901 fixed inside the air inlet chamber 200, a third fixed plate 902 fixedly connected inside the fixed chamber 300, and a pressing block 903 fixedly connected to the outer side of the rotating rod 701. When the rotating rod 701 rotates, it can drive the pressing block 903 fixedly connected to it to rotate.

[0035] A transmission rod 2 905 is connected to the side of the fixed plate 2 901 via a spring 6 904. The transmission rod 2 905 is located on the side of the extrusion block 903 and is in contact with the extrusion block 903. When the protruding part of the extrusion block 903 moves to the transmission rod 2 905, it can drive the transmission rod 2 905 to compress the spring 6 904 and move closer to the fixed plate 2 901.

[0036] The top of the fixed plate 3 902 is connected to the force-bearing rod 3 907 via a spring 4 906. The force-bearing rod 3 907 is located at the bottom of the transmission rod 2 905, and the force-bearing rod 3 907 is in contact with the transmission rod 2 905. When the transmission rod 2 905 moves, it can compress the force-bearing rod 3 907, which in turn compresses the spring 4 906 and moves closer to the fixed plate 3 902.

[0037] A ring 908 is fixedly connected to the side of the force-bearing rod 907, and a force-bearing plate 910 is connected to the top of the brush plate 702 via a spring 909. When the force-bearing rod 907 moves, it causes the ring 908 to move downwards, pressing the force-bearing plate 910 and applying additional pressure to the brush plate 702 via the spring 909. This ensures that the device applies additional pressure to the top of the brush plate 702 most of the time during use, thereby improving the device's effectiveness in handling the top of the smoke alarm 500.

[0038] In practical use, when the rotating rod 701 rotates, it drives the pressing block 903 fixedly connected to it to rotate. As the pressing block 903 rotates, its protruding part moves to the transmission rod 905, causing the transmission rod 905 to compress the spring 904 and move closer to the fixed plate 901. The moving transmission rod 905 can then press the force rod 907. The compressed force rod 907 can then compress the spring 906 and move closer to the fixed plate 902. The moving force rod 907 can then drive the ring 908 fixedly connected to it to move downwards together, so that the ring 908 presses the force plate 910 and applies additional pressure to the brush plate 702 through the spring 909. When the rotating rod 701 drives the pressing block 903 to rotate 360°, the transmission rod 905 loses its restriction and can be reset under the action of the spring 904. Similarly, the ring 908 and the force plate 910 are reset.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A visual intelligent composite automatic fire alarm device based on an internet platform, comprising a mounting plate, an air inlet chamber mounted at the bottom of the mounting plate, a fixed compartment mounted at the bottom of the air inlet chamber, a monitoring head connectable to an internet platform mounted at the bottom of the fixed compartment, a smoke detector connectable to an internet platform mounted on the side of the fixed compartment, and an extraction fan mounted at the bottom of the mounting plate, characterized in that, The bottom of the output shaft of the extraction fan is equipped with a rotating rod 1. A brush plate is fixedly connected to the outside of the rotating rod 1. A rotating rod 2 is rotatably connected to the inside of the brush plate. A detachable processing brush is equipped on the side of the rotating rod 2. A transmission component for transmission is assembled between the rotating rod 1 and the processing brush. A removable collection chamber is assembled inside the fixed chamber. The fixed chamber is equipped with a striking component and a pressing component.

2. The visual intelligent composite automatic fire alarm device based on an internet platform according to claim 1, characterized in that, The transmission component includes a gear fixed to the outside of the rotating rod, an arc-shaped toothed rod fixedly connected to the side of the fixed chamber, a pressing rod fixedly connected to the bottom of the arc-shaped toothed rod, a transmission plate connected to the inside of the brush plate by a spring, a force-bearing rod fixedly connected to the side of the transmission plate, and a limiting block fixedly connected to the top of the transmission plate.

3. The visual intelligent composite automatic fire alarm device based on an internet platform according to claim 2, characterized in that, There are two force-bearing rods, which are symmetrically distributed about the central axis of the transmission plate.

4. The visual intelligent composite automatic fire alarm device based on an internet platform according to claim 3, characterized in that, The limiting block is located on the side of the first gear, and the limiting block is in contact with the first gear.

5. A visual intelligent composite automatic fire alarm device based on an internet platform according to claim 4, characterized in that, The striking assembly includes a second spring mounted on one side of an arc-shaped rack, a second transmission plate mounted on the side of the second spring, a through transmission rod fixedly connected inside the second transmission plate, a second pressing rod fixedly connected to the side of the first transmission rod, a first fixing plate fixedly connected to the side of the fixing chamber, a sliding rod connected to the bottom of the first fixing plate via a third spring, a second force-bearing rod fixedly connected to the side of the sliding rod, a second rack fixedly connected to the bottom of the second force-bearing rod, a third rotating rod rotatably connected to the side of the fixing chamber, and a second gear and an elastic cam fixedly connected to the outer side of the third rotating rod, the second gear meshing with the second rack.

6. The visual intelligent composite automatic fire alarm device based on an internet platform according to claim 5, characterized in that, Two springs are provided, and the two springs are symmetrically distributed about the central axis of the transmission plate.

7. A visual intelligent composite automatic fire alarm device based on an internet platform according to claim 6, characterized in that, The second force-bearing rod is located on the side of the second extrusion rod, and the second force-bearing rod is in contact with the second extrusion rod.

8. The visual intelligent composite automatic fire alarm device based on an internet platform according to claim 7, characterized in that, The pressing assembly includes a fixed plate two fixed inside the air inlet chamber, a fixed plate three fixedly connected inside the fixed chamber, a pressing block fixedly connected to the outside of the rotating rod one, a transmission rod two connected to the side of the fixed plate two via a spring six, a force-bearing rod three connected to the top of the fixed plate three via a spring four, a ring fixedly connected to the side of the force-bearing rod three, and a force-bearing plate connected to the top of the brush plate via a spring five.

9. A visual intelligent composite automatic fire alarm device based on an internet platform according to claim 8, characterized in that, The second transmission rod is located on the side of the extrusion block, and the second transmission rod is in contact with the extrusion block.

10. A visual intelligent composite automatic fire alarm device based on an internet platform according to claim 9, characterized in that, The force-bearing rod three is located at the bottom of the transmission rod two, and the force-bearing rod three is in contact with the transmission rod two.

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