Fire alarm device and use method thereof

Abstract

The invention discloses a fire alarm device and a use method thereof.The fire alarm device comprises a positioning disc and a smoke alarm body, the bottom end of the positioning disc is fixedly connected with an assembly cylinder, the top end of the interior of the assembly cylinder is provided with a fast assembly assembly, the top end of the smoke alarm body is fixedly connected with a limiting disc, and the inner wall of the limiting disc is fixedly connected with a plurality of matched locking lug seats; the quick assembly assembly is used for being matched with the locking lug base to lock the limiting disc, extension bases are fixedly connected to the two sides of the positioning disc, and protection assemblies are arranged at the ends, away from the positioning disc, of the extension bases and used for protecting the smoke alarm body. According to the invention, through the structural cooperation of the protection assembly, when a fire occurs, the fusing rope can be fused by using the ambient temperature, so that the protection cover can protect the smoke alarm main body, and the smoke alarm main body is prevented from being exposed to the fire to be damaged, thereby greatly guaranteeing the service life of the smoke alarm main body.

Description

Technical Field

[0001] The present invention relates to the technical field of fire alarm technology, in particular to a fire alarm device and a use method thereof. Background Art

[0002] Fire alarm devices can detect the smoke concentration in the area in real time and send out fire alarm signals in time when the concentration exceeds the standard, so as to remind relevant personnel to take measures to prevent the spread of fire and reduce fire losses and hazards. At present, fire alarm devices play a vital role in fire early warning and fire extinguishing processes;

[0003] However, when the fire alarm device in the traditional technology is used, the whole is directly exposed to the environment. When a fire occurs, it is very easy to be damaged by the fire, resulting in a large overall consumption.

[0004] To this end, the present invention provides a fire alarm device and a method of using the same to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a fire alarm device and a method of using the same, which solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fire alarm device, including a positioning plate and a smoke alarm body, the bottom end of the positioning plate is fixedly connected to an assembly tube, the top of the assembly tube is provided with a quick-release assembly, the top of the smoke alarm body is fixedly connected to a limit plate, the inner wall of the limit plate is fixedly connected to a plurality of locking ear seats, the quick-release assembly is used to cooperate with the locking ear seats to lock the limit plate, both sides of the positioning plate are fixedly connected to extension seats, the end of the extension seat away from the positioning plate is provided with a protective assembly, and the protective assembly is used to protect the smoke alarm body.

[0007] Preferably, the quick-release assembly includes a support plate, a locking shaft, a quick-release block, a linkage spur gear, a linkage gear ring, a transmission plate and a transmission through slot, the inner part of the assembly cylinder is fixedly connected to the support plate, the edge of the support plate is rotatably connected to a locking shaft corresponding to a locking ear seat, the bottom end of each locking shaft is fixedly connected to a quick-release block, and the quick-release block is clamped and connected with the corresponding locking ear seat, the middle part of each locking shaft is fixedly connected to a linkage spur gear, the top edge of the assembly cylinder is rotatably connected to a linkage gear ring, and each linkage spur gear is meshed with the linkage gear ring, the top end of one of the locking shafts is fixedly connected to a transmission plate, the middle part of the transmission plate is provided with a transmission through slot, the top end of the assembly cylinder is rotatably connected to a central shaft, the middle part of the central shaft is provided with a threaded section, the outer side of the threaded section is threadedly connected to a guide frame, and the top end of the guide frame is also movably connected to the inside of the transmission through slot.

[0008] Preferably, the protection assembly includes a supporting shaft, an adjusting frame, a protective cover, a reset shaft, a stabilizing shaft and an assembly ear seat, each of the extension seats is rotatably connected to the supporting shaft at one end away from the positioning plate, the middle part of the supporting shaft is fixedly connected to the adjusting frame, the bottom end of the adjusting frame is fixedly connected to the protective cover, the middle part of the adjusting frame is fixedly connected to the reset shaft, one side of the assembly cylinder is fixedly connected to two stabilizing shafts, the outer sides of the two stabilizing shafts are rotatably connected to the assembly ear seat, one end of the assembly ear seat is fixedly connected to a storage cylinder, the end of the storage cylinder away from the assembly ear seat is slidably connected to a displacement slide rod, and the ends of the two displacement slide rods away from the assembly ear seat are rotatably connected to one end of the two reset shafts respectively.

[0009] Preferably, the protection component also includes a limiting plate, a coil spring, an eccentric plate, a carrying column, an anti-slip plate and a fuse rope, the displacement slide rod is fixedly connected to the limiting plate at one end inside the storage tube, a coil spring is fixedly connected between one side of the limiting plate and the storage tube, the end of the support shaft away from the reset shaft is fixedly connected to the eccentric plate, the end of the eccentric plate away from the support shaft is fixedly connected to the carrying column, one end of the carrying column is equipped with an anti-slip plate, a fuse rope is sleeved and connected between the two carrying columns, the middle part of the assembly tube close to one end of the carrying column is fixedly connected to the support column, and the middle part of the fuse rope is arranged on the bottom end of the support column.

[0010] Preferably, a plurality of guide bars are fixedly connected to the outer side of the limiting plate, and the inner wall of the assembly cylinder is provided with loading grooves corresponding to the guide bars one by one, and the guide bars are also slidably connected to the loading grooves.

[0011] Preferably, a locking groove is provided in the middle of the locking ear seat, and the locking groove and the quick-release card block are both arc-shaped structures.

[0012] Preferably, an annular stabilizing groove is provided at the top of the support plate, and the linkage gear ring is rotatably connected to the annular stabilizing groove, and a plurality of alloy balls are also provided at the connection between the annular stabilizing groove and the linkage gear ring.

[0013] Preferably, a guide rod is fixedly connected to the top end of the guide frame, and the guide frame is connected to the inside of the transmission through groove through the guide rod.

[0014] Preferably, a pin is fixedly connected to the middle of one end of the anti-dropping sheet, the outer side of the pin is a threaded structure, a thread groove is provided at one end of the mounting column, and the anti-dropping sheet is connected to the thread groove through the pin.

[0015] A method for using a fire alarm device, the steps are as follows:

[0016] In the first step, the positioning plate is installed at the desired position with the help of a connecting piece;

[0017] The second step is to move the limit plate into the assembly tube, and by rotating the locking shaft, the quick-installation block is inserted into the locking ear seat, so as to quickly install the main body of the smoke alarm.

[0018] The third step is to pull the fuse rope downwards to flip the two adjustment frames outwards at the same time, and place the middle part of the fuse rope under the support column;

[0019] The fourth step is that when a fire occurs, the ambient temperature is used to reduce the fuse rope to melt, prompting the adjustment frame to reset and protect the main body of the smoke alarm.

[0020] Beneficial Effects

[0021] The present invention provides a fire alarm device and a method for using the same. Compared with the prior art, the present invention has the following beneficial effects:

[0022] The fire alarm device and the method of using the same can utilize the environmental temperature to melt the fuse rope when a fire occurs through the structural coordination of the protective components, so that the protective cover can protect the smoke alarm body, thereby preventing the smoke alarm body from being exposed to fire and being damaged, thereby greatly ensuring the service life of the smoke alarm body.

[0023] The fire alarm device and the use method thereof can quickly detach the smoke alarm body from the positioning disk through the combined assembly of the positioning disk and the smoke alarm body, so as to facilitate later maintenance or replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the present invention as a whole;

[0025] Figure 2 is a side view of the present invention;

[0026] Figure 3 It is an exploded view of the overall structure of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the quick-install assembly of the present invention;

[0028] Figure 5 The present invention Figure 4 A partial enlarged view of the middle A;

[0029] Figure 6 It is a schematic diagram of the structure of the protection component of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure for removing the anti-slip sheet of the present invention;

[0031] Figure 8It is a schematic diagram of the internal structure of the storage tube of the present invention.

[0032] In the figure, 1, positioning plate; 2, smoke alarm body; 3, assembly cylinder; 4, quick-release assembly; 5, limit plate; 6, locking ear seat; 7, extension seat; 8, protection assembly; 9, support plate; 10, locking shaft; 11, quick-release block; 12, linkage spur gear; 13, linkage gear ring; 14, transmission plate; 15, transmission groove; 16, center shaft; 17, threaded section; 18, guide frame; 19, guide rod; 20, support shaft; 21, adjustment frame; 22, protective cover; 23, reset shaft; 24, stabilizing shaft; 25, assembly ear seat; 26, storage cylinder; 27, displacement slide; 28, limit plate; 29, spiral spring; 30, eccentric plate; 31, carrying column; 32, anti-drop sheet; 33, fuse rope; 34, support column; 35, positioning plate; 36, guide strip; 37, linear guide rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Embodiment 1:

[0035] See also Figure 1-8 A fire alarm device comprises a positioning plate 1 and a smoke alarm body 2, wherein the bottom end of the positioning plate 1 is fixedly connected with an assembly tube 3, a quick-install component 4 is arranged at the top end inside the assembly tube 3, a limit plate 5 is fixedly connected with the top end of the smoke alarm body 2, a plurality of locking ear seats 6 are fixedly connected with the inner wall of the limit plate 5, the quick-install component 4 is used to cooperate with the locking ear seats 6 to lock the limit plate 5, both sides of the positioning plate 1 are fixedly connected with extension seats 7, and a protective component 8 is arranged at one end of the extension seat 7 away from the positioning plate 1, and the protective component 8 is used to protect the smoke alarm body 2;

[0036] Here, the smoke alarm body 2 includes a sensor, a circuit processing component and an alarm, wherein the sensor is responsible for detecting smoke particles in the air, the circuit processing component processes the signal collected by the sensor, and determines whether the alarm threshold is reached; the alarm is responsible for sending out an audible and visual alarm signal, which mainly uses optical smoke sensing technology to detect tiny smoke particles floating in the air. The sensor focuses light onto a small target surface through an optical lens. When an object blocks the target surface, a dark field of light will be caused. If the rate of change of the dark field reaches a certain value within a period of time, it means that an object has blocked its line of sight. At this time, the sensor will send a signal to the circuit. After receiving the signal, the circuit will perform a series of processing, such as comparing it with a preset alarm threshold. If the threshold is exceeded, the alarm will be activated to sound an alarm. This is a mature existing technology and will not be repeated here.

[0037] In detail, both ends of the positioning plate 1 are fixedly connected with a positioning plate 35, and a waist hole is opened at one end of the positioning plate 35 away from the positioning plate 1. Through the setting of the waist hole, when the positioning plate 1 is assembled, the bolt is passed through the waist hole, and the positioning plate 1 can be positioned at a specified position by the bolt;

[0038] In this embodiment, a plurality of guide strips 36 are fixedly connected to the outer side of the limit plate 5, and a loading groove corresponding to the guide strips 36 is opened on the inner wall of the assembly cylinder 3, and the guide strips 36 are also slidably connected to the loading grooves. By using the arrangement of the guide strips 36 and the loading grooves, when the limit plate 5 is moved into the assembly cylinder 3, the guide strips 36 are first aligned with the loading grooves. After the limit plate 5 is moved into the assembly cylinder 3, the position of the locking ear seat 6 is aligned with the position of the quick-install block 11, thereby reducing the time consumption of adjusting the locking ear seat 6.

[0039] The quick-release assembly 4 includes a support plate 9, a locking shaft 10, a quick-release card block 11, a linkage spur gear 12, a linkage gear ring 13, a transmission plate 14 and a transmission through groove 15. The interior of the assembly cylinder 3 is fixedly connected to the support plate 9, and the edge of the support plate 9 is rotatably connected to the locking shaft 10 corresponding to the matching lock ear seat 6. The bottom end of each locking shaft 10 is fixedly connected to the quick-release card block 11, and the quick-release card block 11 is connected to the corresponding matching lock ear seat 6 by snapping. The middle part of each locking shaft 10 is fixedly connected to the linkage spur gear 1 2. The top edge of the assembly cylinder 3 is rotatably connected with a linkage gear ring 13, and each linkage spur gear 12 is meshed with the linkage gear ring 13. The top of one locking shaft 10 is fixedly connected with a transmission plate 14, and a transmission through groove 15 is provided in the middle of the transmission plate 14. The top of the assembly cylinder 3 is rotatably connected with a central shaft 16, and a threaded section 17 is provided in the middle of the central shaft 16. The outer side of the threaded section 17 is threadedly connected with a guide frame 18, and the top of the guide frame 18 is also movably connected to the inside of the transmission through groove 15.

[0040] Here, a locking groove is provided in the middle of the locking ear seat 6, and the locking groove and the quick-install block 11 are both arc-shaped structures. By utilizing the structural cooperation between the locking groove and the quick-install block 11, when the quick-install block 11 is connected to the locking ear seat 6, it can be moved into the locking ear seat 6 to ensure the connection effect between the quick-install block 11 and the locking ear seat 6, and prevent the locking ear seat 6 from being separated from the quick-install block 11;

[0041] Furthermore, an annular stabilizing groove is provided at the top of the support plate 9, and the linkage gear ring 13 is rotatably connected to the annular stabilizing groove, and a plurality of alloy balls are also provided at the connection between the annular stabilizing groove and the linkage gear ring 13. The annular stabilizing groove can be used to provide auxiliary support for the linkage gear ring 13, and the alloy balls can be used to greatly improve the smoothness of the linkage gear ring 13 during rotation, thereby ensuring the transmission efficiency of the linkage gear ring 13.

[0042] Preferably, a guide rod 19 is fixedly connected to the top of the guide frame 18, and the guide frame 18 is connected to the inside of the transmission slot 15 through the guide rod 19. By setting the guide rod 19, during the displacement of the guide frame 18, the guide rod 19 can be driven to move inside the transmission slot 15, thereby pushing the transmission plate 14, thereby driving the locking shaft 10 connected to the transmission plate 14 to rotate;

[0043] Preferably, a linear guide rod 37 is fixedly connected to the interior of the assembly cylinder 3, and the guide frame 18 is also slidably connected to the outside of the linear guide rod;

[0044] The protection component 8 includes a support shaft 20, an adjustment frame 21, a protective cover 22, a reset shaft 23, a stabilization shaft 24 and an assembly ear seat 25, each extension seat 7 is rotatably connected to the support shaft 20 at one end away from the positioning plate 1, the middle part of the support shaft 20 is fixedly connected to the adjustment frame 21, the bottom end of the adjustment frame 21 is fixedly connected to the protective cover 22, the middle part of the adjustment frame 21 is fixedly connected to the reset shaft 23, one side of the assembly cylinder 3 is fixedly connected to two stabilization shafts 24, the outer sides of the two stabilization shafts 24 are rotatably connected to the assembly ear seat 25, one end of the assembly ear seat 25 is fixedly connected to a storage cylinder 26, the end of the storage cylinder 26 away from the assembly ear seat 25 is slidably connected to a displacement slide rod 27, and the ends of the two displacement slide rods 27 away from the assembly ear seat 25 are rotatably connected to one end of the two reset shafts 23 respectively;

[0045] Here, the protective covers 22 are made of refractory materials, and the protective covers 22 are semi-shell structures. When two protective covers 22 are assembled together, a complete shell is formed, and the ends of the two protective covers 22 close to each other are fixedly connected with magnetic sheets, and the two magnetic sheets are magnetically connected;

[0046] The protection assembly 8 also includes a limit plate 28, a coil spring 29, an eccentric plate 30, a carrying column 31, an anti-slip sheet 32 ​​and a fuse rope 33. One end of the displacement slide rod 27 located inside the storage tube 26 is fixedly connected to the limit plate 28, and a coil spring 29 is fixedly connected between one side of the limit plate 28 and the storage tube 26. The end of the support shaft 20 away from the reset shaft 23 is fixedly connected to the eccentric plate 30, and the end of the eccentric plate 30 away from the support shaft 20 is fixedly connected to the carrying column 31. One end of the carrying column 31 is equipped with an anti-slip sheet 32, and a fuse rope 33 is sleeved and connected between the two carrying columns 31. The middle part of the assembly tube 3 close to one end of the carrying column 31 is fixedly connected to the support column 34, and the middle part of the fuse rope 33 is arranged at the bottom end of the support column 34.

[0047] Furthermore, a pin is fixedly connected to the middle of one end of the anti-slip sheet 32, and the outer side of the pin is a threaded structure. A threaded groove is provided at one end of the mounting column 31, and the anti-slip sheet 32 ​​is connected to the threaded groove through the pin. By setting the anti-slip sheet 32, after the fuse rope 33 is assembled, the end of the fuse rope 33 can be limited to prevent the fuse rope 33 from being separated from the mounting column 31, and the anti-slip sheet 32 ​​and the mounting column 31 are connected by the pin, so when the fuse rope 33 is replaced, the anti-slip sheet 32 ​​can be easily separated from the mounting column 31.

[0048] Here, both ends of the fuse rope 33 are provided with assembly rings, and the fuse rope 33 is sleeved with the mounting column 31 through the assembly rings;

[0049] Embodiment 2:

[0050] This embodiment provides a method for using a fire alarm device based on the first embodiment, and the steps are as follows:

[0051] The first step is to install the positioning plate 1 at the desired position with the help of a connecting piece;

[0052] More specifically, bolts and other connecting members are passed through the positioning plate 35 to position the positioning plate 1 at a specified position;

[0053] In the second step, the limit plate 5 is moved into the assembly tube 3, and the quick-install block 11 is inserted into the locking ear seat 6 by rotating the locking shaft 10, so as to form a quick installation position of the smoke alarm body 2;

[0054] In more detail, first align the guide bar 36 with the loading slot, then push the limit plate 5 into the assembly tube 3 until the top of the limit plate 5 contacts the support plate 9, then rotate the central shaft 16, cooperate with the connection between the threaded section 17 and the guide frame 18, so that the guide frame 18 can be in a horizontal position inside the assembly tube 3, and because the guide rod 19 is also movably connected to the inside of the transmission groove 15, when the guide frame 18 is displaced, the transmission plate 14 can be pushed by the guide rod 19 to drive the locking shaft 10 connected to the transmission plate 14 to rotate, and the linkage spur gear 12 at the locking shaft 10 is rotated to shift the linkage gear ring 13, because each linkage spur gear 12 is connected to the linkage gear ring 13, and the linkage gear ring 13 can shift the remaining linkage spur gears 12, so that multiple locking shafts 10 simultaneously drive the quick-install card block 11 to rotate, until the quick-install card block 11 is stuck in the inside of the locking ear seat 6, so as to realize the assembly of the smoke alarm body 2;

[0055] The third step is to pull the fuse rope 33 downwards, so that the two adjustment frames 21 are turned outwards at the same time, and the middle part of the fuse rope 33 is placed under the support column 34;

[0056] In more detail, first, the two ends of the fuse rope 33 are respectively sleeved on the outside of the two carrying columns 31, and the anti-detachment plates 32 are screwed into the carrying columns 31 to block the fuse rope 33 and prevent the ends of the fuse rope 33 from detaching from the carrying columns 31. Then, the fuse rope 33 is pulled downward. Since the fuse rope 33 is located between the two eccentric plates 30, the two eccentric plates 30 can be driven to rotate downward at the same time. Since the eccentric plates 30 are supported by the support shaft 20, the adjustment frame 21 can be driven to rotate through the support shaft 20, causing the protective cover 22 to flip outward. When the adjustment frame 21 rotates, the displacement slide bar 27 can be driven to slide at the storage tube 26, and the coil spring 29 can be squeezed through the limit plate 28. When the protective cover 22 does not affect the detection of the smoke alarm body 2, the fuse rope 33 is set on the support column 34 to lock the position of the protective cover 22.

[0057] Step 4: When a fire occurs, the ambient temperature is reduced to cause the fuse rope 33 to melt, prompting the adjustment frame 21 to reset and protect the smoke alarm body 2;

[0058] In more detail, when a subsequent fire occurs, the temperature drop in the environment will melt the fuse rope 33, causing the eccentric plate 30 to lose tension, and then the rebound of the coil spring 29 can be used to drive the adjustment frame 21 to reset until the two protective covers 22 fit together to protect the smoke alarm body 2 and prevent the smoke alarm body 2 from being burned by the fire;

[0059] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire alarm device, characterized in that: The invention comprises a positioning plate (1) and a smoke alarm body (2), wherein the bottom end of the positioning plate (1) is fixedly connected to an assembly tube (3), the top end of the assembly tube (3) is provided with a quick-install component (4), the top end of the smoke alarm body (2) is fixedly connected to a limit plate (5), the inner wall of the limit plate (5) is fixedly connected to a plurality of matching locking ear seats (6), the quick-install component (4) is used to cooperate with the matching locking ear seats (6) to lock the limit plate (5), both sides of the positioning plate (1) are fixedly connected to extension seats (7), and the ends of the extension seats (7) away from the positioning plate (1) are provided with protective components (8), and the protective components (8) are used to protect the smoke alarm body (2).

2. A fire alarm device according to claim 1, characterized in that: The quick-install assembly (4) comprises a support plate (9), a locking shaft (10), a quick-install block (11), a linkage spur gear (12), a linkage gear ring (13), a transmission plate (14) and a transmission groove (15); the interior of the assembly cylinder (3) is fixedly connected with the support plate (9); the edge of the support plate (9) is rotatably connected with a locking shaft (10) corresponding to a matching lock ear seat (6); the bottom end of each locking shaft (10) is fixedly connected with a quick-install block (11), and the quick-install block (11) is connected to the corresponding matching lock ear seat (6) by snapping; the middle part of each locking shaft (10) is fixedly connected with a linkage spur gear (12); the locking shaft (10) is connected to the matching lock ear seat (6 ... 2), the top edge of the assembly cylinder (3) is rotatably connected to a linkage gear ring (13), and each of the linkage spur gears (12) is meshed with the linkage gear ring (13), the top of one of the locking shafts (10) is fixedly connected to a transmission plate (14), a transmission groove (15) is provided in the middle of the transmission plate (14), the top of the assembly cylinder (3) is rotatably connected to a central shaft (16), a threaded section (17) is provided in the middle of the central shaft (16), the outer side of the threaded section (17) is threadedly connected to a guide frame (18), and the top of the guide frame (18) is also movably connected to the inside of the transmission groove (15).

3. A fire alarm device according to claim 1, characterized in that: The protective assembly (8) comprises a supporting shaft (20), an adjusting frame (21), a protective cover (22), a reset shaft (23), a stabilizing shaft (24) and an assembly ear seat (25); one end of each of the extension seats (7) away from the positioning plate (1) is rotatably connected to the supporting shaft (20); the middle of the supporting shaft (20) is fixedly connected to the adjusting frame (21); the bottom end of the adjusting frame (21) is fixedly connected to the protective cover (22); the middle of the adjusting frame (21) is fixedly connected to the reset shaft Rod (23), one side of the assembly cylinder (3) is fixedly connected to two stabilizing shaft rods (24), the outer sides of the two stabilizing shaft rods (24) are rotatably connected to assembly ear seats (25), one end of the assembly ear seat (25) is fixedly connected to a storage cylinder (26), the end of the storage cylinder (26) away from the assembly ear seat (25) is slidably connected to a displacement slide rod (27), and the ends of the two displacement slide rods (27) away from the assembly ear seat (25) are rotatably connected to one end of the two reset shaft rods (23) respectively.

4. A fire alarm device according to claim 3, characterized in that: The protection assembly (8) further comprises a limit plate (28), a coil spring (29), an eccentric plate (30), a carrying column (31), an anti-drop plate (32) and a fuse rope (33); one end of the displacement slide rod (27) located inside the storage tube (26) is fixedly connected to the limit plate (28); one side of the limit plate (28) is fixedly connected to the storage tube (26) with a coil spring (29); one end of the support shaft rod (20) away from the reset shaft rod (23) is fixedly connected to the limit plate (28); An eccentric plate (30) is fixedly connected, and one end of the eccentric plate (30) away from the supporting shaft (20) is fixedly connected to a carrying column (31), one end of the carrying column (31) is equipped with an anti-drop sheet (32), a fuse rope (33) is sleeved and connected between the two carrying columns (31), and a support column (34) is fixedly connected to the middle part of the assembly tube (3) near one end of the carrying column (31), and the middle part of the fuse rope (33) is arranged on the bottom end of the support column (34).

5. A fire alarm device according to claim 1, characterized in that: A plurality of guide strips (36) are fixedly connected to the outer side of the limiting plate (5), and loading grooves corresponding to the guide strips (36) are formed on the inner wall of the assembly cylinder (3), and the guide strips (36) are also slidably connected to the loading grooves.

6. A fire alarm device according to claim 2, characterized in that: A locking groove is provided in the middle of the locking ear seat (6), and the locking groove and the quick-install card block (11) are both arc-shaped structures.

7. A fire alarm device according to claim 2, characterized in that: An annular stabilizing groove is provided at the top of the support plate (9), and the linkage gear ring (13) is rotatably connected to the annular stabilizing groove, and a plurality of alloy balls are also provided at the connection between the annular stabilizing groove and the linkage gear ring (13).

8. A fire alarm device according to claim 2, characterized in that: The top end of the guide frame (18) is fixedly connected to a guide rod (19), and the guide frame (18) is connected to the inside of the transmission slot (15) via the guide rod (19).

9. A fire alarm device according to claim 4, characterized in that: A pin is fixedly connected to the middle of one end of the anti-slip sheet (32), the outer side of the pin is a threaded structure, one end of the carrying column (31) is provided with a threaded groove, and the anti-slip sheet (32) is connected to the threaded groove via the pin.

10. A method for using a fire alarm device, characterized in that: Here are the steps: The first step is to install the positioning plate (1) at the desired position with the aid of a connecting piece; In the second step, the limit plate (5) is moved into the interior of the assembly cylinder (3), and the quick-install block (11) is caused to snap into the locking ear seat (6) by rotating the locking shaft (10), thereby forming a quick installation of the smoke alarm body (2); The third step is to pull the fuse rope (33) downwards, so that the two adjustment frames (21) are turned outwards at the same time, and the middle part of the fuse rope (33) is placed under the support column (34); The fourth step is that when a fire occurs, the ambient temperature is reduced to cause the fuse rope (33) to fuse, thereby prompting the adjustment frame (21) to reset and protecting the smoke alarm body (2).

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