A fire sound and light alarm for corridor

Abstract

The present invention relates to the technical field of fire alarm devices, and specifically discloses a fire sound and light alarm for a corridor, including: a fixed seat, a storage battery for power supply in case of emergency is arranged at the bottom of the fixed seat, a control box is fixedly connected to the bottom of the fixed seat, and a sound and light alarm main body is arranged below the fixed seat; a rescue mechanism, the rescue mechanism is arranged at the bottom of the fixed seat and is used for lowering an escape rope for escape when a fire occurs in the corridor. Through the setting of the rescue mechanism, when a fire occurs in a building, not only can it provide sound and light reminders, but at the same time, a group of escape ropes can be slowly lowered while reminding. People in the building can use the placed escape ropes to help them escape in case of emergency, greatly improving the probability of people escaping when encountering a fire. And the escape passage is guided by the laser beam emitted by the laser, so that people can quickly find the escape passage in a smoky environment.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire alarm devices, and particularly relates to a fire sound and light alarm for a corridor. Background Art

[0002] In a building, when a fire occurs, the alarm installed in the building corridor will issue an alarm to remind the people in the building to evacuate in time. The fire sound and light alarm is one of many alarms. The fire sound and light alarm is used to generate sound alarms and flash alarms at the accident site, and is particularly suitable for places with low visibility during alarm or where there is smoke at the accident site.

[0003] In the Chinese patent with the publication number CN218918212U, a fire sound and light alarm for a fire alarm system is mentioned. By lowering the lowering rope of the lifting component, the overall weight control component and the sound and light alarm component can be lowered by a certain distance, so that the sound and light alarm component is closer to the ground, ensuring that the emitted sound and light alarm can timely notify the people within the ground range, and thus avoiding the ground personnel from not being able to timely discover the danger and improving the practicability of the fire sound and light alarm.

[0004] The existing fire sound and light alarms can only emit sound and light alarms when a fire occurs to remind people of the fire so as to avoid danger. When a fire occurs, they cannot provide substantial help for people in the building to escape from the fire. For this reason, we propose a fire sound and light alarm for a corridor. Summary of the Invention

[0005] The purpose of the present invention is to provide a fire sound and light alarm for a corridor to solve the problem in the existing technology that it can only emit sound and light alarms and cannot provide substantial help for people to escape from the fire.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A fire sound and light alarm for a corridor, comprising:

[0008] A fixed seat, a storage battery for power supply in an emergency is arranged at the bottom of the fixed seat, a control box is fixedly connected to the bottom of the fixed seat, and a sound and light alarm main body is arranged below the fixed seat;

[0009] A rescue mechanism, which is arranged at the bottom of the fixed seat and is used for lowering an escape rope for escape in case of a fire in the corridor to assist in escape;

[0010] A guiding mechanism, which is arranged below the fixed seat and is used for guiding the direction of the escape exit by using a laser that is visible in the smoke in case of a fire in the corridor;

[0011] The triggering component is arranged at the bottom of the fixed seat and is used to trigger the start of the guiding mechanism simultaneously after the rescue mechanism lowers the escape rope.

[0012] Preferably, the rescue mechanism includes a disc which is arranged below the fixed seat. A spiral groove is formed at the top of the disc, and an escape rope is arranged inside the spiral groove. A driving motor is fixedly connected to the bottom of the fixed seat, and a rotating bar is fixedly connected to the output shaft of the driving motor. An activity groove is formed at the top of the rotating bar, a round rod is slidably connected inside the activity groove, and a round block is slidably connected inside the spiral groove.

[0013] Preferably, a hook is fixedly connected to the outside of the round block, a hanging ring is fixedly connected to one end of the escape rope close to the round block, a counterweight block is fixedly connected to the other end of the escape rope, and a notch communicating with the spiral groove is formed on the outside of the disc, and the counterweight block is located inside the notch.

[0014] Preferably, a fixing piece is fixedly connected to the outside of the disc, and the fixing piece is fixedly connected to the bottom of the fixed seat. The output shaft of the driving motor is movably connected to the top of the disc through a bearing. The hanging ring is arranged inside the hook, and the round rod is fixedly connected to the top of the round block.

[0015] Preferably, the guiding mechanism includes a U-shaped block which is arranged at the bottom of the disc. An activity block for adjusting the angle is arranged inside the U-shaped block, a laser is fixedly connected to the outside of the activity block, and a rotating shaft is fixedly connected to the top of the U-shaped block.

[0016] Preferably, the top of the rotating shaft is movably connected to a connecting block through a bearing. A rubber block is fixedly connected to the bottom of the connecting block, a vertical rod is fixedly connected to the top of the connecting block, a slider is fixedly connected to the top end of the vertical rod, and an annular T-shaped groove is formed at the bottom of the disc, and the slider is slidably connected inside the T-shaped groove.

[0017] Preferably, a side block is fixedly connected to the outside of the vertical rod, a screw hole is formed at the bottom of the side block, a bolt is threadedly connected inside the screw hole, and the top of the bolt is in contact with the bottom of the disc.

[0018] Preferably, the triggering component includes a hollow rod which is fixedly connected to the bottom of the fixed seat. A resisting block is arranged below the hollow rod, a top block is fixedly connected to the top end of the round rod, a top rod is fixedly connected to the inner top of the hollow rod, a second joint is fixedly connected to the bottom end of the top rod, a pressing block is slidably connected inside the hollow rod, and a first joint is fixedly connected to the top of the pressing block.

[0019] Preferably, a rectangular hole is formed at the bottom of the hollow rod, a rectangular rod is fixedly connected to the bottom of the pressing block, and the bottom end of the rectangular rod penetrates through the rectangular hole and is slidably connected to the inside of the rectangular hole.

[0020] Preferably, the laser is electrically connected between the first connector and the second connector. A spring is fixedly connected to the inner top of the hollow rod. The spring is fixedly connected to the top of the pressing block, and the abutting block is fixedly connected to the bottom end of the rectangular rod.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. Through the setting of the rescue mechanism, when a fire occurs in a building, not only can it provide sound and light reminders, but at the same time, it can slowly lower a set of escape ropes while giving the reminders. People in the building can use the placed escape ropes to help them escape in case of emergency, greatly increasing the probability of people escaping when encountering a fire, and having good practicability.

[0023] 2. Through the setting of the guiding mechanism, when the escape rope is lowered, the laser is activated by the triggering component, and the laser beam emitted by the laser guides the escape passage, facilitating people to quickly find the escape passage in a smoky environment, and further increasing the probability of people escaping when encountering a fire.

[0024] 3. Through the setting of the hook, hanging ring, spiral groove and round block, after the fire, a new escape rope can be hung on the hook, and the driving motor rotates in the reverse direction, thereby driving the new escape rope to slowly enter the spiral groove, facilitating the next use, making the rescue mechanism reusable and having good practicability.

[0025] 4. Through the setting of the slider, T-shaped groove, side block and bolt, after the fire sound and light alarm is installed, according to the different positions of the actual safety exits on site, the position and orientation of the laser can be adjusted, so that the laser beam can be aligned with the escape direction or passage, facilitating guiding people during a fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 One of the three-dimensional views of the present invention;

[0027] Figure 2 Another three-dimensional view of the present invention;

[0028] Figure 3 Structural schematic diagram of the escape rope of the present invention;

[0029] Figure 4 Structural schematic diagram of the driving motor of the present invention;

[0030] Figure 5 Structural schematic diagram of the round block of the present invention;

[0031] Figure 6 Structural schematic diagram of the bottom of the fixed seat of the present invention;

[0032] Figure 7 Schematic diagram of the bottom structure of the disc of the present invention;

[0033] Figure 8 Partial explosion schematic diagram at the trigger assembly of the present invention;

[0034] Figure 9 Schematic diagram of the structure at the laser of the present invention;

[0035] Figure 10 Schematic diagram of the structure at the connecting block of the present invention.

[0036] In the figure: 1, fixed seat; 2, storage battery; 3, control box;

[0037] 4, rescue mechanism; 401, drive motor; 402, disc; 403, spiral groove; 404, fixing member; 405, hanging ring; 406, escape rope; 407, counterweight; 408, rotating bar; 409, moving groove; 410, round block; 411, round rod; 412, hook; 413, notch;

[0038] 5, guiding mechanism; 501, T-shaped groove; 502, moving block; 503, laser; 504, U-shaped block; 505, connecting block; 506, side block; 507, slider; 508, rotating shaft; 509, rubber block; 510, bolt; 511, vertical rod;

[0039] 6, acousto-optic alarm main body;

[0040] 7, trigger assembly; 701, top block; 702, hollow rod; 703, rectangular hole; 704, pressing block; 705, abutting block; 706, rectangular rod; 707, ejector rod; 708, joint one; 709, spring; 710, joint two. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Referring to Figures 1 - 10 as shown, the present invention provides a fire acousto-optic alarm for a corridor, including:

[0043] A fixed seat 1, a storage battery 2 for power supply in case of emergency is arranged at the bottom of the fixed seat 1, the fixed seat 1 is fixedly connected to a control box 3 at the bottom, a PLC controller is arranged inside the control box 3, and an acousto-optic alarm main body 6 is arranged below the fixed seat 1;

[0044] The rescue mechanism 4 is arranged at the bottom of the fixed seat 1 and is used to lower the escape rope 406 for escape in case of a fire in the corridor to assist in escape.

[0045] The guiding mechanism 5 is arranged below the fixed seat 1 and is used to guide the orientation of the escape exit by using a laser that is visible in the smoke in case of a fire in the corridor.

[0046] The triggering component 7 is arranged at the bottom of the fixed seat 1 and is used to trigger the start of the guiding mechanism 5 simultaneously after the rescue mechanism 4 lowers the escape rope 406.

[0047] In a further embodiment, refer to Figures 1 - 5, the rescue mechanism 4 includes a disc 402 which is arranged below the fixed seat 1. A spiral groove 403 is formed at the top of the disc 402 for storing the escape rope 406. When the driving motor 401 rotates, the round block 410 in the spiral groove 403 can push the escape rope 406 inside it to move in the spiral groove 403 until it completely moves out of the spiral groove 403. In addition, the spiral groove 403 can also be used to install a new escape rope 406 after a fire. The escape rope 406 is arranged inside the spiral groove 403 and is used to be tied to a safe position in case of an emergency and escape through facilities such as windows. The bottom of the fixed seat 1 is fixedly connected with a driving motor 401 which is used to provide power for the release of the escape rope 406. The driving motor 401 is fixedly connected with a rotating bar 408 through an output shaft. The driving motor 401 can drive the rotating bar 408 to rotate. An activity groove 409 is formed at the top of the rotating bar 408. A round rod 411 is slidably connected to the inside of the activity groove 409. A round block 410 is slidably connected to the inside of the spiral groove 403. The round rod 411 can move in the activity groove 409. Therefore, when the rotating bar 408 rotates, the round block 410 in the spiral groove 403 can move in the spiral groove 403, thereby pushing or pulling the escape rope 406 to move for installing a new escape rope 406 or releasing the escape rope 406 during a fire. A hook 412 is fixedly connected to the outside of the round block 410. A hanging ring 405 is fixedly connected to one end of the escape rope 406 close to the round block 410. The hanging ring 405 and the hook 412 are used to connect the escape rope 406 with the round block 410. The other end of the escape rope 406 is fixedly connected with a counterweight 407 which is used to make the escape rope 406 move vertically downward when the escape rope 406 is released and can assist the round block 410 to push the escape rope 406, so that the phenomenon that the escape rope 406 gets stuck in the spiral groove 403 will not occur. A notch 413 which is communicated with the spiral groove 403 is formed on the outside of the disc 402 and is used to facilitate the release of the escape rope 406. The counterweight 407 is located inside the notch 413. A fixing member 404 is fixedly connected to the outside of the disc 402 and is fixedly connected to the bottom of the fixed seat 1. The output shaft of the driving motor 401 is movably connected to the top of the disc 402 through a bearing. The hanging ring 405 is arranged inside the hook 412. The round rod 411 is fixedly connected to the top of the round block 410. When the rotating bar 408 rotates, it can drive the round rod 411 to move through the activity groove 409, and the spiral groove 403 limits the moving track of the round block 410. Therefore, when the rotating bar 408 rotates, the round block 410 can move in the spiral groove 403 under the action of the round rod 411.

[0048] Specifically, the sound and light alarm main body 6 is electrically connected to the PLC controller in the control box 3. When the PLC controller receives the fire information from the externally connected smoke sensor, the PLC controller controls the start of the sound and light alarm main body 6 and the drive motor 401. The input end of the drive motor 401 is electrically connected to the output end of the PLC controller in the control box 3. When a fire occurs in the building, the PLC controller can control the start of the drive motor 401.

[0049] Among them, the connection between the above-mentioned smoke sensor and the PLC controller belongs to the prior art and is well-known, so it will not be elaborated here. The smoke sensor is a smoke sensing device installed beside the sound and light alarm main body 6 in the corridor, and is used to monitor whether a fire occurs in the corridor.

[0050] Specifically, the fixing member 404 includes a bracket fixedly connected to the bottom of the fixing seat 1 and a mounting block fixed to the outside of the disc 402. The mounting block is fixed to the bottom of the bracket. The fixing member 404 is used for the connection between the fixing seat 1 and the disc 402, and the fixing member 404 is arranged symmetrically in two groups to ensure the stable placement of the disc 402.

[0051] In this embodiment, when a fire occurs, the start of the drive motor 401 can push the escape rope 406 in the spiral groove 403 to move until the escape rope 406 is completely pushed out. With the provision of the escape rope 406, it is convenient for people to use when escaping from a fire, and the escape probability is increased.

[0052] In a further embodiment, refer to Figure 7 and Figures 9 - 10, the guiding mechanism 5 includes a U-shaped block 504. The U-shaped block 504 is arranged at the bottom of the disc 402. An adjustable-angle movable block 502 is arranged inside the U-shaped block 504. A laser 503 is fixedly connected to the outside of the movable block 502. The laser beam emitted by the laser 503 can provide direction guidance for people who lose their way on the floor in the fire smoke, assisting people to quickly escape through the escape passage. The top of the U-shaped block 504 is fixedly connected with a rotating shaft 508. The rotating shaft 508 is used for connecting the U-shaped block 504 and the connecting block 505. The top of the rotating shaft 508 is movably connected to the connecting block 505 through a bearing. Under the action of the bearing, the U-shaped block 504 can rotate at the bottom of the connecting block 505. The bottom of the connecting block 505 is fixedly connected with a rubber block 509. The rubber block 509 can increase the friction when the U-shaped block 504 is adjusted. It will neither affect the rotation of the U-shaped block 504 when stressed, nor can the position of the adjusted U-shaped block 504 be limited by the elastic force of the rubber block 509, so that the position of the adjusted U-shaped block 504 is stable. The top of the connecting block 505 is fixedly connected with a vertical rod 511. The top of the vertical rod 511 is fixedly connected with a slider 507. The slider 507 can move in the T-shaped groove 501, so that the position and irradiation direction of the laser 503 can be adjusted according to the actual situation. The bottom of the disc 402 is provided with a T-shaped groove 501 arranged in a ring shape. The slider 507 is slidably connected to the inside of the T-shaped groove 501. The outside of the slider 507 is in contact with the inside of the T-shaped groove 501, and the slider 507 can freely slide in the T-shaped groove 501. The outside of the vertical rod 511 is fixedly connected with a side block 506. A threaded hole is opened at the bottom of the side block 506. A bolt 510 is threadedly connected to the inside of the threaded hole. The top of the bolt 510 is in contact with the bottom of the disc 402. By rotating the bolt 510 under the action of the threaded hole, the bolt 510 can move upward. After adjusting the position of the laser 503, the position of the laser 503 is limited by the contact between the top of the bolt 510 and the bottom of the disc 402, so that it will not move under the action of external force.

[0053] Specifically, when the laser irradiates the smoke, the extremely small solid particles in the smoke will reflect or scatter the light, making the propagation path of the light visible. Therefore, the beam emitted by the laser 503 is displayed in the smoke.

[0054] Specifically, through holes are opened on the left and right sides of the U-shaped block 504. The movable block 502 for adjusting the angle of the movable block 502 is arranged inside the through holes. According to the installation position of the fire sound and light alarm and the exit position of the escape passage, the irradiation angle of the beam of the laser 503 is adjusted.

[0055] In this embodiment, when a fire occurs and the building is filled with smoke, through the indication of the laser 503, it is convenient for people to quickly find the escape passage or the escape direction when escaping in the fire smoke, avoiding people getting lost in the smoke and improving the escape success rate in case of fire.

[0056] In a further embodiment, referring to Figure 6 and Figure 8 , the trigger assembly 7 includes a hollow rod 702, the hollow rod 702 is fixedly connected to the bottom of the fixed seat 1, the inner side of the hollow rod 702 is cylindrical, a blocking block 705 is arranged below the hollow rod 702, the top end of the round rod 411 is fixedly connected with a top block 701, the top of the top block 701 and the bottom of the blocking block 705 are both arc-shaped. When the top block 701 moves below the blocking block 705, under the action of both being arc-shaped surfaces, the blocking block 705 can be pushed to move upward. A top rod 707 is fixedly connected to the inner top of the hollow rod 702, the top rod 707 is used for the installation of the second connector 710, and the second connector 710 is pushed above the first connector 708. The bottom end of the top rod 707 is fixedly connected with the second connector 710. A pressing block 704 is slidably connected to the inner side of the hollow rod 702, the pressing block 704 can slide inside the hollow rod 702 under the action of the rectangular rod 706. The top of the pressing block 704 is fixedly connected with the first connector 708. When the pressing block 704 moves upward, the first connector 708 is driven to move upward, so that the first connector 708 and the second connector 710 are in contact, and the circuit of the laser 503 is connected. A rectangular hole 703 is opened at the bottom of the hollow rod 702, and the rectangular hole 703 is used to limit the movement track of the rectangular rod 706 to ensure that the rectangular rod 706 can move up and down inside the rectangular hole 703. The bottom of the pressing block 704 is fixedly connected with a rectangular rod 706, and the bottom end of the rectangular rod 706 passes through the rectangular hole 703 and is slidably connected to the inner side of the rectangular hole 703. The laser 503 is electrically connected to the first connector 708 and the second connector 710. A spring 709 is fixedly connected to the inner top of the hollow rod 702. Under the action of the spring 709, when the top block 701 cancels the pushing on the blocking block 705, the reaction force of the spring 709 pushes the pressing block 704 downward, so that the first connector 708 and the second connector 710 are separated, and the laser 503 is turned off. The spring 709 is fixedly connected to the top of the pressing block 704, and the blocking block 705 is fixedly connected to the bottom end of the rectangular rod 706.

[0057] In this embodiment, when the rescue mechanism 4 lowers the escape rope 406, the top block 701 pushes the blocking block 705 to move upward, so that the first connector 708 and the second connector 710 are in contact. When the first connector 708 and the second connector 710 are in contact, the laser 503 is started to guide the escape passage or direction.

[0058] It should be noted that the laser 503, the PLC controller and the drive motor 401 used in the above scheme are all existing devices. The circuit connection and the internal structure of the laser 503, the PLC controller and the drive motor 401 are well known in the art, so they will not be described again here.

[0059] The working principle of the present invention is as follows:

[0060] Install the fire sound and light alarm in the corridor of the building through the fixed seat 1. Adjust the position and orientation of the laser 503 according to the actual escape route or the position of the escape direction on site. After adjustment, rotate the bolt 510 to limit the adjusted position.

[0061] When a fire occurs in the building, the PLC controller receives the fire and smoke information sent by the smoke sensor connected to it, and transmits the fire and smoke information to the sound and light alarm main body 6. After the sound and light alarm main body 6 senses the fire information, it emits a sound and flashing lights to remind people that a fire has occurred and to escape as soon as possible.

[0062] Meanwhile, the PLC controller in the control box 3 controls the driving motor 401 to start. The driving motor 401 drives the rotating bar 408 to rotate through the output shaft. The rotation of the rotating bar 408 drives the round block 410 to move in the spiral groove 403 through the round rod 411. The movement of the round block 410 in the spiral groove 403, with the cooperation of the counterweight 407, pushes the escape rope 406 in the spiral groove 403 to move. Until the round block 410 moves above the notch 413, at this time the escape rope 406 falls off the hook 412, completing the release of the escape rope 406. People in the fire can use the released escape rope 406 to escape in case of emergency.

[0063] When the escape rope 406 is released, the movement of the round block 410 and the round rod 411 pushes the abutting block 705 upward through the top block 701, thereby pushing the pressing block 704 upward through the rectangular rod 706 until the joint one 708 at the top of the pressing block 704 contacts the joint two 710 at the bottom of the ejector rod 707. At this time, the laser 503 is started, and the laser beam emitted by the laser 503 guides and prompts people in the fire and smoke the direction of the escape route, facilitating the escape of people in the fire.

[0064] After the fire, check and recover the escape rope 406. Hang the hanging ring 405 on the escape rope 406 that meets the conditions on the hook 412, and make the driving motor 401 rotate in the reverse direction, thereby driving the rotating bar 408 to rotate in the reverse direction. Under the action of the movable groove 409 and the spiral groove 403, pull the escape rope 406 to move deeper into the spiral groove 403 until the escape rope 406 is completely dragged into the spiral groove 403. In case of a subsequent fire, the escape rope 406 can be used continuously.

[0065] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire sound and light alarm for corridors, characterized in that: include: A fixing seat (1), a storage battery (2) for power supply in an emergency is arranged at the bottom of the fixing seat (1), a control box (3) is fixedly connected to the bottom of the fixing seat (1), and an audible and visual alarm body (6) is arranged below the fixing seat (1); A rescue mechanism (4), the rescue mechanism (4) being arranged at the bottom of the fixing seat (1) and being used to lower an escape rope (406) for escaping when a fire occurs in the corridor, so as to assist in escaping; A guiding mechanism (5), the guiding mechanism (5) being arranged below the fixing seat (1) and used to guide the direction of the escape exit by using a laser visible in the smoke when a fire occurs in the corridor; A trigger component (7), the trigger component (7) being arranged at the bottom of the fixing seat (1) and being used to trigger the start of the guiding mechanism (5) at the same time as the rescue mechanism (4) lowers the escape rope (406); The rescue mechanism (4) comprises a disc (402), the disc (402) being arranged below the fixed seat (1), the disc (402) being provided with a spiral groove (403) on the top, an escape rope (406) being provided inside the spiral groove (403), a driving motor (401) being fixedly connected to the bottom of the fixed seat (1), the driving motor (401) being fixedly connected to a rotating bar (408) via an output shaft, a movable groove (409) being provided on the top of the rotating bar (408), a round rod (411) being slidably connected inside the movable groove (409), and a round block (410) being slidably connected inside the spiral groove (403); A hook (412) is fixedly connected to the outside of the round block (410); one end of the escape rope (406) close to the round block (410) is fixedly connected to a hanging ring (405); the other end of the escape rope (406) is fixedly connected to a counterweight (407); a notch (413) connected to the spiral groove (403) is formed on the outside of the disc (402); and the counterweight (407) is located inside the notch (413); A fixing member (404) is fixedly connected to the outside of the circular disk (402), the fixing member (404) is fixedly connected to the bottom of the fixing seat (1), the output shaft of the driving motor (401) is movably connected to the top of the circular disk (402) via a bearing, the hanging ring (405) is arranged on the inside of the hook (412), and the round rod (411) is fixedly connected to the top of the round block (410).

2. A fire sound and light alarm for corridors according to claim 1, characterized in that: The guiding mechanism (5) comprises a U-shaped block (504), the U-shaped block (504) being arranged at the bottom of the disc (402), a movable block (502) for adjusting the angle being arranged on the inner side of the U-shaped block (504), a laser (503) being fixedly connected to the outer side of the movable block (502), and a rotating shaft (508) being fixedly connected to the top of the U-shaped block (504).

3. A fire sound and light alarm for corridors according to claim 2, characterized in that: The top of the rotating shaft (508) is movably connected to a connecting block (505) via a bearing, the bottom of the connecting block (505) is fixedly connected to a rubber block (509), the top of the connecting block (505) is fixedly connected to a vertical rod (511), the top of the vertical rod (511) is fixedly connected to a sliding block (507), the bottom of the disc (402) is provided with a T-shaped groove (501) arranged in an annular shape, and the sliding block (507) is slidably connected to the inner side of the T-shaped groove (501).

4. A fire sound and light alarm for corridors according to claim 3, characterized in that: The outer side of the vertical rod (511) is fixedly connected to a side block (506), a screw hole is provided at the bottom of the side block (506), a bolt (510) is threadedly connected to the inner side of the screw hole, and the top of the bolt (510) is in contact with the bottom of the disc (402).

5. The fire sound and light alarm for corridor according to claim 1, characterized in that: The trigger assembly (7) comprises a hollow rod (702), the hollow rod (702) being fixedly connected to the bottom of the fixing seat (1), a stop block (705) being arranged below the hollow rod (702), a top block (701) being fixedly connected to the top of the round rod (411), a top rod (707) being fixedly connected to the top of the hollow rod (702), a second joint (710) being fixedly connected to the bottom of the top rod (707), a pressure block (704) being slidably connected to the inside of the hollow rod (702), and a first joint (708) being fixedly connected to the top of the pressure block (704).

6. A fire sound and light alarm for corridors according to claim 5, characterized in that: A rectangular hole (703) is formed at the bottom of the hollow rod (702), a rectangular rod (706) is fixedly connected to the bottom of the pressing block (704), and the bottom end of the rectangular rod (706) passes through the rectangular hole (703) and is slidably connected to the inner side of the rectangular hole (703).

7. The fire sound and light alarm for corridor according to claim 5, characterized in that: A spring (709) is fixedly connected to the top of the hollow rod (702), the spring (709) is fixedly connected to the top of the pressure block (704), the stop block (705) is fixedly connected to the bottom of the rectangular rod (706), and the laser (503) is electrically connected to the first connector (708) and the second connector (710).

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