Fire-fighting detection alarm device capable of being quickly assembled and disassembled

Abstract

The invention relates to the technical field of fire-fighting alarm devices, in particular to a fire-fighting detection alarm device capable of being quickly assembled and disassembled, which comprises a fire-fighting alarm box, a lifting control assembly and a filtering assembly, and is characterized in that a power connection bottom cover is inserted into the upper end of the fire-fighting alarm box, a control box is arranged at the upper end of the power connection bottom cover, and an installation adjusting assembly is arranged at the upper end of the control box; in a place where a fire alarm needs to be installed on a pitched roof, the fire alarm box can be adaptively installed through the installation adjusting assembly, the detection influence caused by inclination of the installation angle of the fire alarm box is avoided as much as possible, and then under the cooperation effect of the lifting control assembly, lifting adjustment control can be conducted on the fire alarm box; when the fire alarm box is regularly detected and maintained, manual climbing operation can be avoided, the safety is improved while the detection and maintenance efficiency is improved, in addition, the filtering assembly can be matched with the air guide fan to achieve active flowing of external air through the fire alarm box, and the accuracy of fire detection and alarm is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fire alarm devices, in particular to a fire detection alarm device which can be quickly installed and disassembled. Background Art

[0002] Fire detection alarm is an important firefighting equipment to prevent fire and reduce fire hazards. It can quickly detect abnormal conditions such as smoke and temperature changes in the early stage of fire, and issue an alarm in time to remind people to take corresponding fire extinguishing and escape measures. Fire detection alarm devices are widely used in various places. According to different usage scenarios, there are fire alarm devices with wiring and wireless transmission;

[0003] The utility model with the existing publication number CN222189987U discloses an intelligent fire alarm which is easy to install, including a base and a box body, wherein two supporting blocks are fixedly installed on the bottom of the base, and a card slot and two first limit slots are opened on the supporting block, and a first limit mechanism is connected to the first limit slot, and a second card block and a telescopic rod are fixedly installed on the top of the box body, which can facilitate the installation and maintenance of the device, thereby improving work efficiency. The above scheme proposes an installation and disassembly scheme of the alarm, but when it is used in some large places and on floors with an inclined angle on the top surface, such as shopping malls, subways and other stairwells, when it is installed on the sloping roof, in order to ensure that the alarm can be used with an inclined angle of more than 45 degrees, it is not convenient to adjust if you want to install it. At the same time, after long-term use, the fire alarm needs to be detected and operated by a fire smoke gun smoke detection instrument. During operation, the staff is often required to perform high-altitude operations, which is dangerous and time-consuming and labor-intensive. Summary of the invention

[0004] The object of the present invention is to provide a fire detection alarm device that can be quickly installed and disassembled to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a fire detection alarm device that can be quickly installed and disassembled, comprising:

[0006] A fire alarm box, wherein the upper end of the fire alarm box is plugged with a power connection bottom cover, the upper end of the power connection bottom cover is provided with a control box, the upper end of the control box is provided with an installation adjustment component, the installation adjustment component includes an adjustment shaft rod and a mounting support rod, and the mounting support rod is fixed on the wall by bolts;

[0007] A lifting control assembly, the lifting control assembly includes a winding drum, a thin steel rope is wound around the winding drum, the lower end of the thin steel rope is connected to the fire alarm box through a retaining assembly, and the retaining assembly includes a pulling block and a T-shaped retaining member;

[0008] The filter assembly is arranged at the lower end of the fire alarm box, and the filter assembly comprises a combined pressure cover and a filter screen.

[0009] Preferably, two ear plates are symmetrically provided at the upper end of the control box, the adjustment shaft is horizontally arranged between the two ear plates, and an adjustment ring is provided on the side of the mounting rod away from the wall, and the adjustment ring is movably connected to the adjustment shaft.

[0010] Preferably, the adjusting shaft is placed in one side of the adjusting collar and is symmetrically provided with a plurality of positioning grooves, a strip-shaped through groove is penetrated through one side of the mounting support rod close to the adjusting collar, a rod groove is provided in the strip-shaped through groove and connected to the adjusting collar, a positioning rod is movably inserted in the rod groove, one side of the positioning rod is inserted into the positioning groove of the adjusting shaft, and both side surfaces of the positioning rod inserted in the positioning groove are inclined surfaces.

[0011] Preferably, the positioning rod is placed in one side of the strip-shaped through-groove and horizontally penetrates the strip-shaped through-groove, and constraint cross bars are provided on both sides of the strip-shaped through-groove. The fire alarm box is located in the center of the strip-shaped through-groove and is provided with a positioning spring. A threaded pressure ring is provided on one side of the mounting support rod close to the strip-shaped through-groove through a threaded sleeve. When there is no need for rotation between the adjusting ring and the adjusting shaft rod, the threaded pressure ring contacts the side of the constraint cross bar extending out of the strip-shaped through-groove.

[0012] Preferably, two annular power connection grooves are provided at the lower end of the power connection bottom cover, and power connection convex rings are provided at the upper end of the fire alarm box near the annular power connection grooves, and the two power connection convex rings are respectively inserted into the two annular power connection grooves, and annular power connection plates are provided on the opposite sides of the annular power connection grooves and the power connection convex rings, and one side surface of the annular power connection groove and the power connection convex ring are both conical surfaces.

[0013] Preferably, a collecting chamber is provided in the control box, the collecting chamber penetrates the electrical bottom cover to form a first docking groove, a combined connecting sleeve is provided at the center of the upper end of the fire alarm box, the center of the combined connecting sleeve penetrates the fire alarm box to form a second docking groove, and the first docking groove and the second docking groove are relatively connected.

[0014] Preferably, a power support disk and a support frame are respectively provided on both sides of the collection chamber of the control box, the winding disk is horizontally arranged between the power support disk and the support frame, one side of the winding disk is penetrated and connected to the support frame through a bearing, a matching sleeve shaft is horizontally provided at the center of the side of the winding disk close to the power support disk, and the matching sleeve shaft movably penetrates the power support disk, a servo motor is horizontally provided at one side of the outer side of the control box close to the matching sleeve shaft, the center of the servo motor horizontally penetrates the center of the collecting chamber and is provided with a control main shaft, a control disk is provided on one side of the control main shaft located in the collecting chamber, a power-connecting slip ring is provided on one side of the collecting chamber close to the control disk, the matching sleeve shaft penetrates one side of the power support disk, is electrically plugged into the power-connecting slip ring and is sleeved with the control disk, a first electromagnetic ring is provided on the side of the matching sleeve shaft sleeved with the control disk, and a second electromagnetic ring is provided on the side of the power support disk sleeved with the matching sleeve shaft.

[0015] Preferably, an annular spring groove is provided in the combined connecting sleeve, an extrusion ring is horizontally provided in the annular spring groove, a pulling block is provided at the center of the extrusion ring through a support rod, a combing ring is horizontally provided in the first docking groove, the lower end of the thin steel rope passes through the combing ring and is fixedly connected to the upper end of the pulling block, a force spring is provided at the upper end of the extrusion ring, and a T-shaped retaining piece is vertically arranged at the upper end of the pulling block, and a movable release disk is movably sleeved under the flange of the T-shaped retaining piece through a constraint ring, the movable release disk has the same flange diameter as the T-shaped retaining piece, the lower end face of the movable release disk and the upper end face of the flange of the T-shaped retaining piece are both conical surfaces, telescopic grooves are provided on all four sides of the first docking groove, and the telescopic grooves are movably inserted in the first docking groove. A card block is provided, and a telescopic spring is provided on one side of the card block located in the telescopic groove. When the fire alarm box is normally connected to the power connection bottom cover, the card block is placed in the first docking groove on one side between the flange of the T-shaped retaining piece and the movable release disk.

[0016] Preferably, an external cover is provided on the side of the control box away from the servo motor, one side of the control main shaft passes through the winding disk and is plugged into the external slot to provide an air guide fan, and a filter is provided on one side of the external cover.

[0017] Preferably, the combined gland is threadedly sleeved on the fire alarm box, a number of air windows are correspondingly opened on the fire alarm box and the combined gland, and the filter is horizontally arranged between the fire alarm box and the combined gland.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In places where fire alarms need to be installed on sloping roofs, the fire alarm box can be adaptively installed by installing an adjustment component to avoid detection effects caused by the tilted installation angle of the fire alarm box as much as possible. Then, with the cooperation of the lifting control component, the fire alarm box can be raised and lowered and adjusted to avoid manual climbing operations during regular inspection and maintenance of the fire alarm box, thereby improving inspection and maintenance efficiency and safety. In addition, the filter component can cooperate with the air guide fan to realize the active flow of external air through the fire alarm box, thereby improving the accuracy of fire detection and alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0021] Figure 2 It is a schematic diagram of the structure of the present invention from a second viewing angle;

[0022] Figure 3 It is a partial side-cut schematic diagram of the structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of part A;

[0024] Figure 5 For the present invention Figure 3 Schematic diagram of part B;

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the C part;

[0026] Figure 7 For the present invention Figure 5 Schematic diagram of the D part;

[0027] Figure 8 For the present invention Figure 3 Schematic diagram of part E;

[0028] Fig. 9 This is a schematic diagram of the installation structure of the power connection bottom cover of the present invention;

[0029] Fig.10 This is a schematic diagram of the support rod installation structure of the present invention;

[0030] Fig.11 This is a schematic diagram of the connection structure of the fire alarm box of the present invention;

[0031] Fig.12 For the present invention Fig.11 Schematic diagram of the F site.

[0032] In the figure: fire alarm box 1, power connection bottom cover 2, control box 3, ear plate 4, adjustment shaft rod 5, installation support rod 6, adjustment collar 7, positioning card slot 8, strip through slot 9, positioning plug rod 10, constraint cross bar 11, positioning spring 12, threaded pressure ring 13, combined pressure cover 14, filter screen 15, air window 16, annular power connection slot 17, power connection convex ring 18, annular power connection sheet 19, servo motor 20, control spindle 21, control disk 22, winding disk 23, matching sleeve 24, power connection support disk 25, power connection slip ring 26, first electromagnetic ring 27, second electromagnetic ring 28, thin steel rope 29, combing ring 30, combined connecting sleeve 31, extrusion ring 32, pulling block 33, force spring 34, T-shaped retainer 35, movable release disk 36, telescopic slot 37, card block 38, telescopic spring 39, air guide fan 40, filter sheet 41. 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] Please see attached Figure 1-Figure 12 , this application provides the following technical solutions.

[0035] Embodiment 1: A fire detection alarm device that can be quickly installed and disassembled includes a fire alarm box 1, the upper end of the fire alarm box 1 is plugged with a power connection bottom cover 2, the upper end of the power connection bottom cover 2 is provided with a control box 3, the upper end of the control box 3 is provided with an installation and adjustment component, the lower end of the power connection bottom cover 2 is provided with two annular power connection grooves 17, the upper end of the fire alarm box 1 close to the annular power connection grooves 17 is provided with a power connection convex ring 18, the two power connection convex rings 18 are respectively plugged into the two annular power connection grooves 17, the opposite sides of the annular power connection grooves 17 and the power connection convex rings 18 are provided with annular power connection sheets 19, and one side of the annular power connection grooves 17 and the power connection convex rings 18 are both conical surfaces. When the fire alarm box 1 is assembled with the power connection bottom cover 2, the power connection convex ring 18 and the annular power connection groove 17 are matched to make an electrical connection. After the detection module in the fire alarm box 1 detects the data, it can transmit the remote data through the wireless transmission module.

[0036] The installation and adjustment assembly includes an adjusting shaft rod 5 and an installation support rod 6. The installation support rod 6 is fixed to the wall by bolts. Two ear plates 4 are symmetrically provided on the upper end of the control box 3. The adjusting shaft rod 5 is horizontally arranged between the two ear plates 4. An adjusting collar 7 is provided on the side of the installation support rod 6 away from the wall. The adjusting collar 7 is movably sleeved on the adjusting shaft rod 5. A plurality of positioning grooves 8 are symmetrically provided on one side of the adjusting shaft rod 5 placed in the adjusting collar 7. A strip-shaped through groove 9 is penetrated on one side of the installation support rod 6 close to the adjusting collar 7. A rod groove is provided in the strip-shaped through groove 9 that is connected to the adjusting collar 7. A positioning plug rod 10 is movably inserted in the rod groove. One side of the positioning plug rod 10 is inserted into the positioning groove 8 of the adjusting shaft rod 5, and both sides of the positioning plug rod 10 inserted into the positioning groove 8 are inclined surfaces. The positioning plug rod 10 is placed in the strip-shaped through groove 9. A constraint cross bar 11 is provided on both sides of the strip-shaped through groove 9. The constraint cross bar The rod 11 is located in the strip through-slot 9 and a positioning spring 12 is provided at the center thereof. A threaded pressing ring 13 is provided on the side of the mounting support rod 6 close to the strip through-slot 9 through a threaded sleeve. When there is no need for rotation between the adjusting collar 7 and the adjusting shaft rod 5, the threaded pressing ring 13 contacts the side of the constraint cross bar 11 extending out of the strip through-slot 9. When the mounting surface is an inclined surface, the mounting support rod 6 can be pre-installed on the wall by bolts, and then the adjusting shaft rod 5 can be rotated and adjusted along the adjusting collar 7 to make the power-connecting bottom cover 2 in a horizontal posture. During the rotation adjustment, the positioning plug rod 10 can keep the power-connecting bottom cover 2 in a horizontal state and basically positioned under the plug-in action of the positioning spring 12, and then the rotating threaded pressing ring 13 is abutted against the constraint cross bar 11, so that the constraint cross bar 11 and the positioning plug rod 10 cannot be extended and disengaged from the positioning slot 8 of the adjusting shaft rod 5, and the rotation adjustment of the adjusting shaft rod 5 and the power-connecting bottom cover 2 is limited and fixed.

[0037] A lifting control component is provided to adjust the lifting and lowering activities of the fire alarm box 1. The lifting control component includes a winding drum 23. A thin steel rope 29 is wound around the winding drum 23. The lower end of the thin steel rope 29 is connected to the fire alarm box 1 through a holding component. The holding component includes a pulling block 33 and a T-shaped holding member 35. A collecting chamber is provided in the control box 3. The collecting chamber penetrates the power-connected bottom cover 2 to form a first docking groove. A combined connecting sleeve 31 is provided at the center of the upper end of the fire alarm box 1. The center of the combined connecting sleeve 31 penetrates the fire alarm box 1 to form a second docking groove. The first docking groove and the second docking groove are relatively connected. The control box 3 is connected to the fire alarm box 1 through the power-connected bottom cover 2 to facilitate subsequent connection and ventilation control.

[0038] A power-connecting support disk 25 and a support frame are respectively provided on both sides of the collection chamber of the control box 3. The winding disk 23 is horizontally arranged between the power-connecting support disk 25 and the support frame. One side of the winding disk 23 passes through the plug-in support frame through a bearing. A matching sleeve shaft 24 is horizontally arranged at the center of the side of the winding disk 23 close to the power-connecting support disk 25. The matching sleeve shaft 24 movably passes through the power-connecting support disk 25. A servo motor 20 is horizontally arranged at one side of the outer side of the control box 3 close to the matching sleeve shaft 24. The center of the servo motor 20 horizontally passes through the center of the collection chamber and is provided with a control spindle 21. A control disk 22 is provided on one side of the control spindle 21 located in the collection chamber. A power-connecting slip ring 26 is provided on one side of the collection chamber close to the control disk 22. The matching sleeve shaft 24 passes through the power-connecting support disk 25. One side of the mating sleeve 24 is electrically connected and plugged into the electrical slip ring 26 and sleeved with the control disk 22. A first electromagnetic ring 27 is provided on one side of the mating sleeve 24 sleeved with the control disk 22. A second electromagnetic ring 28 is provided on one side of the electrical support disk 25 sleeved with the mating sleeve 24. When the servo motor 20 controls the control spindle 21 to rotate in the control box 3, the control spindle 21 and the winding disk 23 are non-contact. In order to control the rotation of the winding disk 23 by the control spindle 21, it is necessary to energize the first electromagnetic ring 27 of the mating sleeve 24 through the electrical slip ring 26. At this time, the mating sleeve 24 is electrically connected and rotates in the electrical slip ring 26, and the mating sleeve 24 rotates together with the control disk 22 and the control disk 22, so that the winding disk 23 can reel in and unwind the thin steel rope 29.

[0039] An annular spring groove is provided in the combined connecting sleeve 31, and an extrusion ring 32 is horizontally provided in the annular spring groove. A pulling block 33 is provided at the center of the extrusion ring 32 through a support rod. A combing ring 30 is horizontally provided in the first docking groove. The lower end of the thin steel rope 29 passes through the combing ring 30 and is fixedly connected to the upper end of the pulling block 33. A force spring 34 is provided at the upper end of the extrusion ring 32. A T-shaped retaining member 35 is vertically provided at the upper end of the pulling block 33. A movable release disk 36 is movably sleeved under the flange of the T-shaped retaining member 35 through a constraint ring. The movable release disk 36 has the same diameter as the flange of the T-shaped retaining member 35. The lower end surface of the movable release disk 36 and the upper end surface of the flange of the T-shaped retaining member 35 are both conical surfaces. Telescopic grooves 37 are provided on all four sides of the first docking groove. The first docking slot is provided with a card block 38 that is movably inserted in the slot 37, and a telescopic spring 39 is provided on one side of the card block 38 located in the telescopic slot. When the fire alarm box 1 is normally connected to the power connection bottom cover 2, the card block 38 is placed in the first docking slot on one side between the flange of the T-shaped retaining member 35 and the movable release disk 36. After the thin steel rope 29 is connected to the winding disk 23 of the fire alarm box 1, the winding and unwinding of the thin steel rope 29 can control the fire alarm box 1 to freely detach from the power connection bottom cover 2 or fit the power connection bottom cover 2, so as to realize the power connection of the annular power connection sheet 19. At the same time, under the action of the conical surface of the annular power connection slot 17 and the power connection convex ring 18, when the fire alarm box 1 fits with the power connection bottom cover 2, a certain offset distance can be automatically corrected and positioned through the fitting of the conical structure;

[0040] When the fire alarm box 1 needs to be maintained and repaired, the fire alarm box 1 can be lowered to the height where the operator is located, and the fire smoke gun smoke detection instrument can directly perform the detection. After the detection is completed, the fire alarm box 1 automatically rises and completes the power connection operation, without the need for personnel to climb up to work;

[0041] When the entire on-site power system fails, the lower end of the thin steel rope 29 overlaps the upper end of the block 38 to prevent the fire alarm box 1 from falling off the power connection bottom cover 2. In addition, when the fire alarm box 1 needs to be separated from the power connection bottom cover 2, the thin steel rope 29 needs to continue to pull the pulling block 33. At this time, the pulling block 33 and the squeezing ring 32 squeeze the force spring 34 to rise, and the movable release disk 36 contacts the inclined surface of the lower end of the block 38, pushing the block 38 to retract into the telescopic groove 37. After the movable release disk 36 passes over the block 38, , the movable release disk 36 contacts the flange of the T-shaped retaining member 35, and the thin steel rope 29 is unwound. Under the elastic force of the force spring 34, the pulling block 33 and the T-shaped retaining member 35 descend at the same time, and then the clamping block 38 contacts the conical surface of the movable release disk 36, and continues to push the clamping block 38 into the telescopic groove 37. At this time, since the flange of the T-shaped retaining member 35 contacts the movable release disk 36, the T-shaped retaining member 35 and the clamping block 38 descend at the same time, thereby completing the separation of the fire alarm box 1 from the power connection bottom cover 2.

[0042] In this embodiment:

[0043] Embodiment 2: On the basis of embodiment 1, a filter assembly is provided to ensure the detection effect of the fire alarm box 1. The filter assembly is provided at the lower end of the fire alarm box 1. The filter assembly includes a combined gland 14 and a filter screen 15. An external cover is provided on the side of the control box 3 away from the servo motor 20. One side of the control main shaft 21 passes through the winding disk 23 and is plugged into the external slot. An air guide fan 40 is provided, and a filter sheet 41 is provided on one side of the external cover. The combined gland 14 is threadedly sleeved with the fire alarm box 1. A plurality of air windows 16 are correspondingly provided on the fire alarm box 1 and the combined gland 14. The filter screen 15 is horizontally provided on the fire alarm box 1 and the combined gland 14, since the place with the sloping roof is generally relatively large, when a fire problem occurs, it may not be discovered in time as the smoke drifts. At this time, the power-connected slip ring 26 cuts off the power to the first electromagnetic ring 27, and the second electromagnetic ring 28 of the power-connected support plate 25 is energized. The winding disk 23 and the power-connected support plate 25 remain stationary, and the servo motor 20 drives the control spindle 21 to rotate rapidly. At this time, the air in the control box 3 is blown to the filter 41, and the air in the fire alarm box 1 and under the fire alarm box 1 enters the control box 3, and the air near the fire alarm box 1 is collected and detected. The lifting control of the fire alarm box 1 can also facilitate the replacement of the filter 15.

[0044] 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 detection alarm device that can be quickly installed and disassembled, characterized in that: include: A fire alarm box (1), wherein the upper end of the fire alarm box (1) is plugged with a power connection bottom cover (2), the upper end of the power connection bottom cover (2) is provided with a control box (3), the upper end of the control box (3) is provided with a mounting adjustment component, the mounting adjustment component comprises an adjustment shaft rod (5) and a mounting support rod (6), and the mounting support rod (6) is fixed to the wall by bolts; A lifting control assembly, the lifting control assembly comprising a winding drum (23), a thin steel rope (29) being wound around the winding drum (23), the lower end of the thin steel rope (29) being connected to the fire alarm box (1) via a retaining assembly, the retaining assembly comprising a pulling block (33) and a T-shaped retaining member (35); A filter assembly is arranged at the lower end of a fire alarm box (1), and comprises a combined gland (14) and a filter screen (15).

2. A fire detection and alarm device that can be quickly installed and disassembled according to claim 1, characterized in that: Two ear plates (4) are symmetrically arranged at the upper end of the control box (3), an adjustment shaft rod (5) is horizontally arranged between the two ear plates (4), an adjustment ring (7) is arranged on the side of the mounting support rod (6) away from the wall, and the adjustment ring (7) is movably sleeved on the adjustment shaft rod (5).

3. A fire detection and alarm device that can be quickly installed and disassembled according to claim 2, characterized in that: The adjusting shaft rod (5) is placed in the adjusting collar (7) on one side thereof and is symmetrically provided with a plurality of positioning slots (8); a strip-shaped through slot (9) is provided on the side of the mounting support rod (6) close to the adjusting collar (7); a rod slot is provided in the strip-shaped through slot (9) and is connected to the adjusting collar (7); a positioning rod (10) is movably inserted in the rod slot; one side of the positioning rod (10) is inserted into the positioning slot (8) of the adjusting shaft rod (5); and both side surfaces of the positioning rod (10) inserted into the positioning slot (8) are inclined surfaces.

4. A fire detection and alarm device that can be quickly installed and removed according to claim 3, characterized in that: The positioning rod (10) is placed on one side of the strip-shaped through-groove (9) and horizontally penetrates the strip-shaped through-groove (9). Constraint cross bars (11) are provided on both sides of the strip-shaped through-groove (9). The fire alarm box (1) is located in the center of the strip-shaped through-groove (9) and is provided with a positioning spring (12). A threaded pressure ring (13) is provided on one side of the mounting support rod (6) close to the strip-shaped through-groove (9) through a threaded sleeve connection. When there is no need for rotation between the adjustment collar (7) and the adjustment shaft rod (5), the threaded pressure ring (13) contacts the side of the constraint cross bar (11) extending out of the strip-shaped through-groove (9).

5. A fire detection and alarm device that can be quickly installed and removed according to claim 4, characterized in that: The lower end of the power connection bottom cover (2) is provided with two annular power connection grooves (17), and the upper end of the fire alarm box (1) close to the annular power connection grooves (17) is provided with power connection protruding rings (18), and the two power connection protruding rings (18) are respectively inserted into the two annular power connection grooves (17), and an annular power connection sheet (19) is provided on the opposite side of the annular power connection groove (17) and the power connection protruding ring (18), and one side surface of the annular power connection groove (17) and the power connection protruding ring (18) are both conical surfaces.

6. A fire detection and alarm device that can be quickly installed and disassembled according to claim 5, characterized in that: The control box (3) is provided with a collection chamber, the collection chamber penetrates the electrical bottom cover (2) and is provided with a first docking groove, the fire alarm box (1) is provided with a combined connection sleeve (31) at the center of the upper end, the combined connection sleeve (31) penetrates the fire alarm box (1) and is provided with a second docking groove, the first docking groove and the second docking groove are arranged to be connected with each other.

7. A fire detection and alarm device that can be quickly installed and removed according to claim 6, characterized in that: The collecting chamber of the control box (3) is provided with a power supply support disk (25) and a support frame on both sides, respectively; a winding disk (23) is horizontally arranged between the power supply support disk (25) and the support frame; one side of the winding disk (23) penetrates the plug-in support frame through a bearing; a matching sleeve shaft (24) is horizontally arranged at the center of one side of the winding disk (23) close to the power supply support disk (25); the matching sleeve shaft (24) movably penetrates the power supply support disk (25); a servo motor (20) is horizontally arranged at one side of the outer side of the control box (3) close to the matching sleeve shaft (24); the center of the servo motor (20) is provided with a servo motor (20) A control main shaft (21) is provided horizontally through the center of the collecting chamber, a control disk (22) is provided on one side of the control main shaft (21) located in the collecting chamber, a power connection slip ring (26) is provided on one side of the collecting chamber close to the control disk (22), a matching sleeve shaft (24) passes through one side of the power connection support disk (25) and is plugged into the power connection slip ring (26) and sleeved with the control disk (22), a first electromagnetic ring (27) is provided on one side of the matching sleeve shaft (24) sleeved with the control disk (22), and a second electromagnetic ring (28) is provided on one side of the power connection support disk (25) sleeved with the matching sleeve shaft (24).

8. A fire detection and alarm device that can be quickly installed and disassembled according to claim 7, characterized in that: The combined connecting sleeve (31) is provided with an annular spring groove, a squeezing ring (32) is horizontally provided in the annular spring groove, a pulling block (33) is provided at the center of the squeezing ring (32) through a support rod, a combing ring (30) is horizontally provided in the first docking groove, the lower end of the thin steel rope (29) passes through the combing ring (30) and is fixedly connected to the upper end of the pulling block (33), a force spring (34) is provided at the upper end of the squeezing ring (32), a T-shaped retaining piece (35) is vertically provided at the upper end of the pulling block (33), and a movable release disk (36) is provided below the flange of the T-shaped retaining piece (35) through a restraining ring movably sleeved, and the movable The release disk (36) and the flange of the T-shaped retaining member (35) have the same diameter, the lower end surface of the movable release disk (36) and the upper end surface of the flange of the T-shaped retaining member (35) are both conical surfaces, telescopic grooves (37) are provided on four sides of the first docking groove, and the telescopic grooves (37) are movably inserted into a clamping block (38) provided in the first docking groove, and a telescopic spring (39) is provided on one side of the clamping block (38) located in the telescopic groove. When the fire alarm box (1) and the power connection bottom cover (2) are normally connected, the clamping block (38) is placed on one side of the first docking groove between the flange of the T-shaped retaining member (35) and the movable release disk (36).

9. A fire detection and alarm device that can be quickly installed and removed according to claim 8, characterized in that: An external cover is provided on the side of the control box (3) away from the servo motor (20), one side of the control main shaft (21) passes through the winding disk (23) and is inserted into the external slot to provide an air guide fan (40), and a filter sheet (41) is provided on one side of the external cover.

10. A fire detection and alarm device that can be quickly installed and disassembled according to claim 9, characterized in that: The combined gland (14) is threadedly sleeved on the fire alarm box (1), a plurality of air windows (16) are correspondingly provided on the fire alarm box (1) and the combined gland (14), and the filter screen (15) is horizontally arranged between the fire alarm box (1) and the combined gland (14).

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