Subway fire alarm device convenient to install

Abstract

The utility model discloses a subway fire alarm device convenient to install, and relates to the technical field of alarm devices, the subway fire alarm device comprises a mounting plate, a fixing box and an alarm, the front end of the mounting plate is rotatably connected with a protective cover, a second cavity is arranged in the fixing box, the front end of the fixing box is provided with a fixing hole, and the middle parts of the two sides of the fixing box are fixedly connected with solid strips. A second clamping groove is formed in the fixing strip, a second spring is arranged in the second cavity, a second clamping plate is fixedly connected to the upper end of the second spring, a second pulling plate is fixedly connected to the front end of the second clamping plate, a first cavity is formed in the mounting plate, and a first clamping groove is formed in the lower end of the protective cover. The problems that in the prior art, after the device is installed at a proper position, the device cannot be protected, so that a fire behavior is misreported due to the fact that passengers touch the device by mistake when taking a subway, an alarm cannot be rapidly installed and detached, and workers cannot conveniently detach and overhaul the device are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of alarm devices, in particular to a subway fire alarm device which is easy to install. Background Art

[0002] The easy-to-install subway fire alarm device is a device that can be quickly installed in subway stations or vehicles to monitor and alarm subway fires. It usually includes components such as smoke detectors, temperature sensors, and sound and light alarms, which can monitor smoke and temperature changes in subway cars or stations in real time.

[0003] However, when some subway fire alarm devices that are easy to install in the prior art are used, it is usually necessary for staff to discover the fire and then press the alarm device to sound the alarm to evacuate passengers.

[0004] However, after the device is installed in a suitable position, it cannot be protected, so a passenger may accidentally touch it while riding the subway, resulting in a false fire alarm. The alarm cannot be installed and removed quickly, making it inconvenient for staff to disassemble and repair it. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a subway fire alarm device that is easy to install, which solves the problem that after the device is installed in a suitable position, it cannot be protected, so passengers may accidentally touch it when riding the subway, resulting in false fire alarms, and the alarm cannot be quickly installed and disassembled, making it inconvenient for staff to disassemble and repair it.

[0006] To achieve the above-mentioned purpose, the utility model proposes a subway fire alarm device which is easy to install, comprising: a mounting plate, a fixing box, and an alarm, wherein the front end of the mounting plate is rotatably connected with a protective cover, a cavity two is provided inside the fixing box, a fixing hole is provided at the front end of the fixing box, solid bars are fixedly connected to the middle parts of both sides of the fixing box, two clamping grooves are provided on the fixing bars, two springs are arranged inside the cavity two, the upper end of the two springs is fixedly connected with two clamping plates, the front end of the two clamping plates is fixedly connected with two pulling plates, a cavity one is provided inside the mounting plate, a clamping groove one is provided at the lower end of the protective cover, the front end of the mounting plate is slidably connected with one pulling plate, the upper end of the one pulling plate is rotatably connected with a connecting plate, one end of the connecting plate is rotatably connected with one clamping plate, and the lower end of the one clamping plate is fixedly connected with one spring.

[0007] As a further solution of the utility model: the front end of the mounting plate is fixedly connected to the fixing box, and an alarm is installed inside the fixing box.

[0008] As a further solution of the utility model: a second cavity is provided inside the fixing box and near both sides, a fixing hole is provided at the front end of the fixing box and near both sides, the fixing hole is connected with the second cavity, the fixing strip is integrally connected with the fixing box, and a second engaging groove is provided on the fixing strip.

[0009] As a further solution of the utility model: the upper end of the second spring is fixedly connected with the second clamping plate, and one end of the second pulling plate away from the second clamping plate passes through the fixing hole and extends to the outside of the second cavity.

[0010] As a further solution of the utility model: the upper end of the second engaging plate is engaged with the inner part of the second engaging groove.

[0011] As a further solution of the utility model: a cavity one is provided inside the mounting plate and near the bottom end, and the engaging groove one is connected with the cavity one.

[0012] As a further solution of the utility model: one end of the pulling plate one extends into the interior of the cavity one, the connecting plate is located inside the cavity one, and one end of the connecting plate away from the pulling plate one is rotatably connected to the clamping plate one.

[0013] As a further solution of the utility model: the upper end of the snap plate 1 slides into the interior of the snap groove 1, the lower end of the snap plate 1 is inside the cavity 1, and the end of the spring 1 away from the snap plate 1 is fixedly connected to the lower inner wall of the cavity 1.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Rotate the protective cover to seal the alarm, pull the pulling plate 1 forward, the pulling plate 1 drives the snap plate 1 to slide down along the snap groove 1 through the connecting plate, the snap plate 1 will squeeze the spring 1, so that the rear side of the protective cover contacts the front side of the mounting plate, then release the pulling plate 1, and then the snap plate 1 will snap into the inside of the snap groove 1 under the action of the spring 1's restoring force, and then the protective cover can be fixed to the outside of the mounting plate to protect the outside of the alarm and prevent passengers from accidentally touching the device.

[0016] 2. Pulling plate 2 drives engaging plate 2 to slide downward along engaging groove 2 in cavity 2. Engaging plate 2 will compress spring 2, release pulling plate 2, engage engaging plate 2 with engaging groove 2, and fix the alarm inside the fixing box, thus achieving the effect of quick installation and disassembly of the alarm, making it convenient for staff to disassemble and repair it. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the protective cover of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the cavity 2 of the utility model;

[0020] Figure 4 It is a schematic structural diagram of the cavity 1 of the utility model.

[0021] In the figure: 1. Mounting plate; 2. Protective cover; 3. Snap-fit ​​groove 1; 4. Cavity 1; 5. Spring 1; 6. Pull plate 1; 7. Connecting plate; 8. Snap-fit ​​plate 1; 9. Fixing box; 10. Cavity 2; 11. Spring 2; 12. Pull plate 2; 13. Fixing hole; 14. Snap-fit ​​plate 2; 15. Alarm; 16. Snap-fit ​​groove 2. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-4 As shown, a subway fire alarm device which is easy to install comprises: a mounting plate 1, a fixing box 9 is fixedly connected to the front end of the mounting plate 1, and an alarm 15 is installed inside the fixing box 9.

[0024] The front end of the mounting plate 1 is rotatably connected with a protective cover 2, which is used to protect the outside of the alarm 15 to prevent passengers from accidentally touching the device.

[0025] A cavity 2 10 is provided inside the fixing box 9 and near both sides, a fixing hole 13 is provided at the front end of the fixing box 9 and near both sides, the fixing hole 13 is connected with the cavity 2 10, a solid bar is fixedly connected to the middle of both sides of the fixing box 9, the fixing bar is integrally connected with the fixing box 9, a snap-fit ​​groove 2 16 is provided on the fixing bar, and the snap-fit ​​groove 2 16 is connected with the cavity 2 10.

[0026] A spring 2 11 is fixedly connected to the inner wall of the lower end of the cavity 2 10 , a clamping plate 2 14 is fixedly connected to the upper end of the spring 2 11 , a pulling plate 2 12 is fixedly connected to the front end of the clamping plate 2 14 , and one end of the pulling plate 2 12 away from the clamping plate 2 14 passes through the fixing hole 13 and extends to the outside of the cavity 2 10 .

[0027] The upper end of the second engaging plate 14 is engaged with the inner portion of the second engaging groove 16 .

[0028] Place the alarm 15 into the interior of the fixed box 9, pull the pulling plate 2 12 downward, the pulling plate 2 12 drives the locking plate 2 14 to slide downward along the locking groove 2 16 in the cavity 2 10, the locking plate 2 14 will slide into the interior of the cavity 2 10, the locking plate 2 14 will compress the spring 2 11, and then the alarm 15 can completely enter the interior of the fixed box 9, when the alarm 15 completely enters the interior of the fixed box 9, release the pulling plate 2 12, under the action of the spring 2 11 resetting force, the locking plate 2 14 will slide out from the interior of the cavity 2 10 again, and engage with the locking groove 2 16, so that the alarm 15 can be fixed in the interior of the fixed box 9, achieving the effect of quick installation and disassembly of the alarm 15, thereby facilitating the staff to disassemble and repair it.

[0029] A cavity 4 is provided inside the mounting plate 1 and near the bottom end thereof, and a snap-fit ​​groove 3 is provided at the lower end of the protective cover 2 , and the snap-fit ​​groove 3 is communicated with the cavity 4 .

[0030] The front end of the mounting plate 1 is slidably connected to a pulling plate 6, one end of which extends into the interior of a cavity 4, and the upper end of the pulling plate 6 is rotatably connected to a connecting plate 7, which is located inside the cavity 4, and one end of the connecting plate 7 away from the pulling plate 6 is rotatably connected to a locking plate 8.

[0031] The upper end of the locking plate 8 slides into the interior of the locking groove 3, and the lower end of the locking plate 8 is inside the cavity 4. The lower end of the locking plate 8 is fixedly connected to a spring 5, and the end of the spring 5 away from the locking plate 8 is fixedly connected to the lower inner wall of the cavity 4.

[0032] Rotate the protective cover 2 so that the protective cover 2 seals the alarm 15, and pull the pulling plate 6 forward. The pulling plate 6 drives the engaging plate 8 to slide downward along the engaging groove 3 through the connecting plate 7, and the engaging plate 8 will be retracted into the interior of the cavity 4. The engaging plate 8 will squeeze the spring 5 so that the rear side of the protective cover 2 contacts the front side of the mounting plate 1. Then release the pulling plate 6, and the spring 5 will reset. Then, under the action of the spring 5 reset, the engaging plate 8 will engage with the interior of the engaging groove 3, and then the protective cover 2 can be fixed to the outside of the mounting plate 1 to protect the outside of the alarm 15 and prevent the passenger from accidentally touching the device.

[0033] Working principle:

[0034] Place the alarm 15 into the interior of the fixed box 9, pull the pulling plate 2 12 downward, the pulling plate 2 12 drives the locking plate 2 14 to slide downward along the locking groove 2 16 in the cavity 2 10, the locking plate 2 14 will slide into the interior of the cavity 2 10, the locking plate 2 14 will compress the spring 2 11, and then the alarm 15 can completely enter the interior of the fixed box 9, when the alarm 15 completely enters the interior of the fixed box 9, release the pulling plate 2 12, under the action of the spring 2 11 resetting force, the locking plate 2 14 will slide out from the interior of the cavity 2 10 again, and engage with the locking groove 2 16, so that the alarm 15 can be fixed in the interior of the fixed box 9, achieving the effect of quick installation and disassembly of the alarm 15, thereby facilitating the staff to disassemble and repair it.

[0035] Rotate the protective cover 2 so that the protective cover 2 seals the alarm 15, and pull the pulling plate 6 forward. The pulling plate 6 drives the engaging plate 8 to slide downward along the engaging groove 3 through the connecting plate 7, and the engaging plate 8 will be retracted into the interior of the cavity 4. The engaging plate 8 will squeeze the spring 5 so that the rear side of the protective cover 2 contacts the front side of the mounting plate 1. Then release the pulling plate 6, and the spring 5 will reset. Then, under the action of the spring 5 reset, the engaging plate 8 will engage with the interior of the engaging groove 3, and then the protective cover 2 can be fixed to the outside of the mounting plate 1 to protect the outside of the alarm 15 and prevent the passenger from accidentally touching the device.

[0036] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A subway fire alarm device that is easy to install, characterized in that: include: The mounting plate (1), the fixing box (9), and the alarm (15) are provided. The front end of the mounting plate (1) is rotatably connected to a protective cover (2). The fixing box (9) is provided with a second cavity (10). The front end of the fixing box (9) is provided with a fixing hole (13). The middle parts of both sides of the fixing box (9) are fixedly connected with solid bars. The fixing bars are provided with second snap-fitting grooves (16). The second cavity (10) is provided with a second spring (11). The upper end of the second spring (11) is fixedly connected with a snap-fitting plate. The front end of the locking plate (14) is fixedly connected to the pulling plate (12), a cavity (4) is provided inside the mounting plate (1), a locking groove (3) is provided at the lower end of the protective cover (2), the front end of the mounting plate (1) is slidably connected to the pulling plate (6), the upper end of the pulling plate (6) is rotatably connected to the connecting plate (7), one end of the connecting plate (7) is rotatably connected to the locking plate (8), and the lower end of the locking plate (8) is fixedly connected to the spring (5).

2. A subway fire alarm device that is easy to install according to claim 1, characterized in that: The front end of the mounting plate (1) is fixedly connected to a fixing box (9), and an alarm (15) is installed inside the fixing box (9).

3. The subway fire alarm device that is easy to install according to claim 1 is characterized in that: A second cavity (10) is provided inside the fixing box (9) and near both sides, a fixing hole (13) is provided at the front end of the fixing box (9) and near both sides, the fixing hole (13) is communicated with the second cavity (10), the fixing strip is integrally connected with the fixing box (9), and a second engaging groove (16) is provided on the fixing strip.

4. The subway fire alarm device that is easy to install according to claim 1 is characterized in that: The upper end of the second spring (11) is fixedly connected to the second clamping plate (14), and one end of the second pulling plate (12) away from the second clamping plate (14) passes through the fixing hole (13) and extends to the outside of the second cavity (10).

5. The subway fire alarm device that is easy to install according to claim 1 is characterized in that: The upper end of the second locking plate (14) is locked with the inner portion of the second locking groove (16).

6. The subway fire alarm device that is easy to install according to claim 1 is characterized in that: A cavity (4) is provided inside the mounting plate (1) and near the bottom end, and the engaging groove (3) is connected to the cavity (4).

7. The subway fire alarm device that is easy to install according to claim 1 is characterized in that: One end of the pulling plate (6) extends into the interior of the cavity (4), the connecting plate (7) is located inside the cavity (4), and the connecting plate (7) is rotatably connected to the clamping plate (8) at one end away from the pulling plate (6).

8. The subway fire alarm device that is easy to install according to claim 1 is characterized in that: The upper end of the snap plate 1 (8) slides into the interior of the snap groove 1 (3), and the lower end of the snap plate 1 (8) is inside the cavity 1 (4). The end of the spring 1 (5) away from the snap plate 1 (8) is fixedly connected to the lower inner wall of the cavity 1 (4).

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