Marine fire alarm device with escape indication function

Abstract

The invention belongs to the technical field of marine fire alarm devices, and particularly relates to a marine fire alarm device with an escape indication function, which comprises a fixed seat, a first fixed ring mounted on the fixed seat, a cover plate fixedly connected to the first fixed ring, a photoelectric detection module and an alarm module mounted on the cover plate, and a rotating ring, the cover plate is rotationally connected to the first fixing ring, the cover plate is fixedly connected with a second fixing ring rotationally connected with the rotating ring through a round rod, the second fixing ring is fixedly connected with a gas passing shell, the rotating ring is fixedly connected with a connecting frame, the connecting frame is fixedly connected with a mounting plate, the mounting plate is rotationally connected with a rotating plate, and an indicating module is mounted on the rotating plate. The indicating module is controlled to swing through wind power, so that the indicating module determines the moving direction of smoke, the approximate direction of the fire position is rapidly determined, workers can rapidly reach the fire position to conduct fire extinguishing operation, the fire extinguishing efficiency is improved, and losses are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of marine fire alarm devices, in particular to a marine fire alarm device with an escape indication function. Background Art

[0002] Ship fires, characterized by enclosed spaces and complex evacuation routes, pose a significant threat to escape. Existing marine fire alarm systems typically consist of smoke detectors, temperature sensors, alarm hosts, and audible and visual alarms. These systems only provide visual and audible signals to indicate a fire has occurred, but are unable to pinpoint its source. Upon hearing the alarm, personnel often need to manually investigate or broadcast notifications to confirm the source, potentially delaying escape.

[0003] In addition, ships often encounter strong winds when sailing. In the event of a fire, strong winds will accelerate the spread of smoke, causing the originally safe escape routes to be quickly covered by smoke, and large amounts of smoke will block the workers' vision; and the smoke diffusion path is interfered with by the wind direction, resulting in the workers being unable to accurately determine the location of the fire. The alarm system of existing ship fire alarm devices cannot dynamically adjust the fire-fighting instructions based on environmental data such as wind direction, which can easily cause workers to act along the wrong path, thereby delaying the best time to extinguish the fire and increasing losses. Summary of the Invention

[0004] The purpose of the present invention is to provide a marine fire alarm device with an escape indication function to solve the problems raised in the above background technology.

[0005] The technical implementation scheme of the present invention is: a marine fire alarm device with an escape indication function, comprising a fixing seat, the fixing seat being equipped with a first fixing ring, the first fixing ring being fixedly connected to a cover plate, the cover plate being equipped with a photoelectric detection module and an alarm module, and further comprising: A rotating ring, the rotating ring is rotatably connected to the side of the first fixed ring away from the cover plate, the cover plate is fixed with a second fixed ring rotatably connected to the rotating ring through a round rod, the second fixed ring is fixed with an air shell on the side away from the cover plate, the outer side of the rotating ring is fixed with a connecting frame, the connecting frame is fixed with a mounting plate, one side of the mounting plate is rotatably connected to a rotating plate, an indicating module is installed on the rotating plate, and a regulating mechanism for detecting wind direction and changing the indication angle of the indicating module is provided on the mounting plate.

[0006] Furthermore, the regulatory mechanism includes: A fixed shell, the fixed shell being fixedly connected to a side of the mounting plate away from the rotating plate and used for detecting wind direction, the fixed shell being provided with an air passage; A driving frame, the driving frame is slidably connected to the fixed shell and is slidably connected to the mounting plate, and the driving frame and the rotating plate are driven by a gear rack; A fixing plate is fixed in the fixing shell, and an elastic member is provided between the fixing plate and the driving frame.

[0007] Furthermore, a protective cover is fixedly connected to one side of the mounting plate close to the rotating plate, the rotating plate and the indicating module are both located in the protective cover, and the protective cover is made of a transparent material.

[0008] Furthermore, it also includes: The air guide mechanism is provided on the gas passage shell and is used to guide the smoke and change the flow direction of the smoke. The air guide mechanism includes: A connecting plate, the connecting plate being fixed to the gas-transmitting shell and rotatably connected to the fixed shell; A rotating rod is rotatably connected to the connecting plate. The rotating rod is fixed with a first blade fan, and the first blade fan is located in the air casing.

[0009] Furthermore, the rotating rod is fixedly connected to a circumferentially distributed wind bearing shell.

[0010] Furthermore, it also includes a second blade fan, an air outlet is provided on the rotating ring, the second blade fan is rotatably connected to the air outlet of the rotating ring, the rotating shaft of the second blade fan is fixedly connected to the third blade fan, the third blade fan and the second blade fan are respectively located on the inner and outer sides of the rotating ring, the rotating ring is fixedly connected to a baffle plate, and the baffle plate is located between the second blade fan and the third blade fan.

[0011] Furthermore, the air outlet of the rotating ring and the air duct of the fixed shell are aligned in the vertical direction.

[0012] Furthermore, the shielding plate is provided with symmetrically distributed inclined plates, and the distance between the two inclined plates gradually decreases from the side close to the second blade to the side close to the third blade.

[0013] Furthermore, it also includes: The circumferentially distributed locking members are all fixed to a side of the fixing seat close to the first fixing ring. A limiting groove is provided on the outer side of the first fixing ring, and the locking members limit the first fixing ring through the limiting groove.

[0014] Furthermore, it also includes an extrusion rod, which is slidably connected to the outer side of the first fixed ring, and the extrusion rod corresponds to the clamping piece one by one. All the extrusion rods are fixed with a pressure ring, and the pressure ring is in extrusion contact with the driving frame. The fixed seat is slidably connected with extrusion blocks with the same number as the extrusion rods, and an elastic block is arranged between the extrusion block and the adjacent clamping piece.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses wind power to control the swing of the indicator module, so that the indicator module determines the direction of smoke movement, thereby quickly determining the approximate direction of the fire location, so that staff can quickly reach the fire location to perform fire extinguishing operations, thereby improving fire extinguishing efficiency and reducing losses; at the same time, staff can move in the opposite direction indicated by the indicator module, away from the fire location, thereby facilitating escape.

[0016] 2. The present invention makes the air in the detection chamber flow by rotating the first and third blades, thereby reducing the probability of dust in the air in the detection chamber covering the electrical components therein, and at the same time makes the airflow in the detection chamber flow in a stable state. The rotation of the two blades is used to carry the smoke into the detection chamber, accelerating the speed at which the smoke drifts upward, so that the photoelectric detection module can detect the smoke content more quickly and make an alarm operation in time.

[0017] 3. The present invention facilitates assembly of the present invention through the cooperation between the retaining member and the limiting groove, and utilizes the movement of the extrusion block to increase the fixing force of the retaining member on the first fixing ring as the wind force gradually increases, thereby ensuring the stability of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a sectional view of the three-dimensional structure of the fixing seat and the gas shell of the present invention; Figure 3 This is an exploded view of the three-dimensional structure of the components on the fixing base of the present invention; Figure 4 Schematic diagram of the three-dimensional structure of the fixed shell and the driving frame of the present invention; Figure 5 This is an exploded view of the three-dimensional structure of the components in the fixed shell of the present invention; Figure 6 Schematic diagram of the three-dimensional structure of the first blade and the wind-bearing shell of the present invention; Figure 7 Schematic diagram of the three-dimensional structure of the second blade and the third blade of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the clamping member and the extrusion rod of the present invention.

[0019] In the figure: 1. Fixed seat; 101. Photoelectric detection module; 102. Alarm module; 2. First fixed ring; 3. Cover plate; 4. Rotating ring; 5. Second fixed ring; 6. Air passage shell; 7. Connecting frame; 8. Mounting plate; 9. Rotating plate; 10. Indication module; 21. Fixed shell; 22. Drive frame; 23. Fixed plate; 31. Protective cover; 41. Connecting plate; 42. Rotating rod; 43. First blade; 44. Wind-bearing shell; 52. Second blade; 53. Third blade; 54. Shielding plate; 61. Positioning member; 62. Limiting groove; 71. Extrusion rod; 72. Pressure ring; 73. Extrusion block. DETAILED DESCRIPTION

[0020] Although the present invention may be described with respect to a specific application or industry, those skilled in the art will recognize the broader applicability of the present invention. Any numerical designations such as first or second are merely illustrative and are not intended to limit the scope of the present invention in any way. The illustrated state of the present application is a normal use state.

[0021] Example 1 This embodiment discloses a marine fire alarm device with an escape indication function, which is mainly targeted at smoke alarms and provides an escape indication function.

[0022] See also Figure 1-Figure 5, including a fixing base 1, a first fixing ring 2 is installed on the lower side of the fixing base 1, a cover plate 3 is fixedly connected to the inner side of the first fixing ring 2, a photoelectric detection module 101 and an alarm module 102 are installed on the cover plate 3, the photoelectric detection module 101 is a photoelectric smoke detector (existing structure, not described in detail), which changes the light intensity received by the sensor by scattering light from smoke and triggers an alarm according to the concentration of smoke, thereby realizing detection, the alarm module 102 is an audible and visual alarm (existing structure, not described in detail), the lower side of the first fixing ring 2 is rotatably connected to a rotating ring 4, the cover plate 3 is fixedly connected to a second fixing ring 5 rotatably connected to the rotating ring 4 through a round rod, the rotating ring 4 can rotate along the first fixing ring 2 and the second fixing ring 5, the cover plate 3, the rotating ring 4 and the second fixing ring 5 together constitute a detection chamber, the lower side of the second fixing ring 5 is fixedly connected to The air-pass shell 6 is used to intercept plastic bags and other parts from the outside to prevent garbage from entering the cover plate 3 and blocking the photoelectric detection module 101. The middle part of the second fixed ring 5 is fixed with a filter shell located in the air-pass shell 6. The filter shell is used to intercept impurities in the outside air to ensure the cleanliness of the surface of the photoelectric detection module 101. Two connecting frames 7 are fixed to the outside of the rotating ring 4. The lower sides of the two connecting frames 7 are jointly fixed with a mounting plate 8. The lower side of the mounting plate 8 is rotatably connected to a rotating plate 9. An indication module 10 is installed on the rotating plate 9. The indication module 10 is a light indication module (the interior of which may be a laser indicator light) for indicating the direction of the fire so that the staff can determine the location of the fire and facilitate escape. The mounting plate 8 is provided with a regulating mechanism for detecting the wind direction and changing the indication angle of the indication module 10.

[0023] See also Figure 2 、 Figure 4 and Figure 5 The regulating mechanism includes: a fixed shell 21, which is fixedly connected to the side of the mounting plate 8 away from the rotating plate 9 for detecting the wind direction. The fixed shell 21 is provided with an air passage. The fixed shell 21 consists of two square shells and a transition shell. The transition shell is located between the two square shells. The square shell arranged horizontally on the right is used to receive air, and the square shell arranged vertically on the left is used to discharge air. The flow area on the right side of the air passage on the fixed shell 21 is larger than the flow area on its left side. The fixed shell 21 has the same function as the existing wind vane, and the square shell arranged horizontally on the right side is always facing the incoming wind side; a driving frame 22 is slidably connected in the fixed shell 21 and is slidably connected to the mounting plate 8. The driving frame 22 and the rotating plate 9 are driven by a gear rack; the fixed plate 23 is fixed in the square shell on the left side of the fixed shell 21, and an elastic member is provided between the fixed plate 23 and the driving frame 22. The elastic member is a spring for driving the driving frame 22 to reset.

[0024] See also Figure 1 、 Figure 2 、 Figure 4 and Figure 5A protective cover 31 is fixed to the lower side of the mounting plate 8. The protective cover 31 is used to protect the rotating plate 9 and the indicating module 10 from being affected by external humid air or high-temperature smoke. The rotating plate 9 and the indicating module 10 are both located in the protective cover 31. The protective cover 31 is made of transparent material and can be an acrylic plate or glass.

[0025] The specific operation process of a marine fire alarm device with an escape indication function in this embodiment is as follows: When a fire occurs on a ship, the smoke generated by the fire will move upward until it enters the air casing 6 and contacts the photoelectric detection module 101 through the filter shell inside the air casing 6. At this time, after the smoke sensing element in the photoelectric detection module 101 recognizes the smoke, the alarm module 102 and the indication module 10 are turned on through the Internet of Things control system. The alarm module 102 sounds an alarm and reminds the staff of the fire, and the indication module 10 turns on and indicates the approximate location of the fire.

[0026] Since ships often encounter strong winds when sailing at sea, smoke will spread rapidly under the action of wind, causing the fire to spread. When the diffused smoke contacts the corresponding photoelectric detection module 101, the corresponding alarm module 102 and indicator module 10 are turned on at the same time. At this time, the smoke drifting with the wind will affect the staff's accurate identification of the specific location of the fire. To solve this problem, the specific operations are as follows: Taking the example of a fire alarm device located away from a fire location and a wind blowing to the left, the wind drives the smoke to the left. When the smoke enters the fixed housing 21, the smoke pushes the drive frame 22 to the left, compressing the adjacent elastic member. The drive frame 22 drives the rotating plate 9 counterclockwise via the rack and pinion, thereby causing the indicator module 10 on the rotating plate 9 to swing, causing the indicator module 10 to indicate the incoming wind direction. At this time, personnel can determine the direction of smoke movement based on the indicated position of the indicator module 10, thereby quickly determining the approximate direction of the fire location. As the wind gradually increases, the distance moved by the drive frame 22 gradually increases, and therefore the swing angle of the indicator module 10 gradually increases. The personnel can determine the wind force based on the swing angle of the indicator module 10, thereby judging the wind's impact on the fire location and smoke. Then, a portion of the personnel can move toward the fire location in the direction indicated by the indicator module 10 to carry out fire extinguishing operations. At the same time, this portion of the personnel can determine the appropriate fire extinguishing plan based on the wind force to improve fire extinguishing efficiency and reduce losses. The other portion of the personnel can move in the opposite direction indicated by the indicator module 10, away from the fire location, to facilitate escape.

[0027] In the above process, if the wind direction changes and the wind blows the fixed shell 21, the fixed shell 21 will rotate accordingly, so that the horizontally arranged square shell of the fixed shell 21 always faces the wind side.

[0028] After the fire is extinguished, the alarm module 102 and the indicator module 10 are turned off. After the air flow stops, the driving frame 22 is reset under the action of the elastic member thereon, thereby resetting the indicator module 10.

[0029] Example 2 This embodiment discloses a marine fire alarm device. Based on the first embodiment, a method of actively extracting smoke is proposed to reduce the impact of wind on smoke and ensure that the photoelectric detection module 101 can accurately detect smoke.

[0030] When a fire occurs on a ship, if the initial fire is small and the smoke generated does not drift into the fire alarm device, the photoelectric detection module 101 cannot detect the smoke. The fire alarm device will not sound an alarm until the fire gradually expands and the smoke gradually increases to the point where it comes into contact with the photoelectric detection module 101. This will cause an alarm delay, thereby delaying the best time to extinguish the fire.

[0031] See also Figure 6 , also includes an air guide mechanism, which is arranged on the air-passing shell 6 and is used to guide the smoke and change the flow direction of the smoke. The air guide mechanism includes: a connecting plate 41, the connecting plate 41 is fixed to the air-passing shell 6, and the connecting plate 41 is rotatably connected to the fixed shell 21; a rotating rod 42, the rotating rod 42 is rotatably connected to the connecting plate 41, and the rotating rod 42 is fixed with a first blade fan 43, the first blade fan 43 is located in the air-passing shell 6, and during the rotation of the first blade fan 43, the air outside the air-passing shell 6 is drawn into the air-passing shell 6.

[0032] See also Figure 2 and Figure 6 The rotating rod 42 is fixedly connected to the circumferentially distributed wind-bearing shells 44. All the wind-bearing shells 44 and the rotating rod 42 together form a wind cup. The wind-bearing shells 44 can convert wind energy in any direction into unidirectional mechanical energy, ensuring that the wind-bearing shells 44 only rotate in a fixed direction.

[0033] The specific operation process of a marine fire alarm device in this embodiment is as follows: During normal use of the present invention, the wind in the ship blows the wind-bearing shell 44, causing all the wind-bearing shells 44 to rotate clockwise (based on the top view perspective), and the wind-bearing shell 44 drives the rotating rod 42 to rotate, thereby driving the first blade 43 to rotate, and the first blade 43 rotates and causes the air in the air-through shell 6 to move upward, and the first blade 43 rotates to move the air outside the air-through shell 6 upward and move the air into the air-through shell 6, so that the first blade 43 stirs the air in the air-through shell 6, making the air in the air-through shell 6 in a flowing state, reducing the probability of dust in the air adhering to the surface of the photoelectric detection module 101, thereby improving the accuracy of the photoelectric detection module 101 in smoke detection.

[0034] When a fire occurs in the ship and smoke is generated, the rotation of the first blade fan 43 will cause the nearby air to move upward. At this time, the upward-moving air will carry the nearby smoke upward synchronously, accelerating the speed of the smoke drifting upward and shortening the time it takes for the smoke to move and contact the photoelectric detection module 101, so that the photoelectric detection module 101 can detect the smoke content more quickly and make an alarm operation in time, which is beneficial for the staff to grasp the best time to extinguish the fire.

[0035] Example 3 This embodiment discloses a marine fire alarm device, which provides a method for actively emitting smoke based on the second embodiment.

[0036] See also Figure 2 、 Figure 6 and Figure 7 , and also includes a second blade fan 52, which is rotatably connected to the air outlet of the rotating ring 4, and the rotating shaft of the second blade fan 52 is fixedly connected to the third blade fan 53. The third blade fan 53 and the second blade fan 52 are respectively located on the inner and outer sides of the rotating ring 4. The second blade fan 52 is used to discharge the smoke in the detection chamber through the air outlet, and the third blade fan 53 is used to drive the second blade fan 52 to rotate. The rotating ring 4 is fixedly connected with a baffle 54, and the rotating shaft of the second blade fan 52 passes through the baffle 54, and the baffle 54 is located between the second blade fan 52 and the third blade fan 53. The baffle 54 is used to block the outside air and reduce the amount of outside air entering the detection chamber through the air outlet. The air outlet of the rotating ring 4 is aligned with the air duct of the fixed shell 21 in the vertical direction.

[0037] See also Figure 7 The baffle 54 is provided with two symmetrically distributed inclined plates, which are used to guide the outside air so that the outside air can drive the second blade 52 to rotate. The distance between the two inclined plates gradually decreases from the side close to the second blade 52 to the side close to the third blade 53.

[0038] The specific operation of a marine fire alarm device in this embodiment is as follows: During normal use of the present invention, under the action of wind, the fixed shell 21 rotates accordingly, so that the air duct of the fixed shell 21 is always facing the incoming wind side, and the fixed shell 21 drives the rotating ring 4 to rotate synchronously through the mounting plate 8 and the connecting frame 7, so that the air outlet of the rotating ring 4 is facing the incoming wind side, and the wind drives the second blade fan 52 to rotate. At the same time, under the guiding effect of the baffle plate 54 on the wind, the impact force of the wind on the second blade fan 52 is increased, which facilitates the rotation of the second blade fan 52.

[0039] During the rotation of the second blade 52, the third blade 53 is driven to rotate. The rotation of the third blade 53 causes the air in the detection chamber to be discharged outward through the air outlet of the rotating ring 4. During the air discharge process, the air is dispersed to the front and rear sides under the guidance of the baffle 54. The rotation of the third blade 53 causes the air in the detection chamber to be discharged.

[0040] During the rotation of the first blade fan 43 and the third blade fan 53, the first blade fan 43 draws air into the detection chamber, and the third blade fan 53 discharges the air in the detection chamber, ensuring that the air in the detection chamber is in a flowing state, further reducing the probability of dust in the air in the detection chamber covering the electrical components therein, and at the same time making the airflow in the detection chamber in a stable flowing state.

[0041] When a fire occurs, the first blade fan 43 extracts the smoke near the detection chamber, and the third blade fan 53 discharges the smoke in the detection chamber, thereby facilitating the smoke near the gas shell 6 to enter the detection chamber, ensuring that the photoelectric detection module 101 quickly contacts the smoke and ensures the timeliness of the fire alarm.

[0042] Example 4 This embodiment discloses a marine fire alarm device, which provides a quick disassembly and assembly method based on the first embodiment.

[0043] See also Figure 1 、 Figure 2 and Figure 8 , and also includes: circumferentially distributed locking members 61, which are all fixed to the lower side of the fixing seat 1, and the locking members 61 are plastic buckles (existing structure); a limiting groove 62 is provided on the outer side of the first fixing ring 2, and when the locking members 61 are inserted into the limiting groove 62, the locking members 61 fix the first fixing ring 2, thereby fixing the first fixing ring 2 on the fixing seat 1.

[0044] During installation of the present invention, the fixing seat 1 is first installed in the specified position by bolts, and then the staff holds the first fixing ring 2 and inserts it between all the locking pieces 61. The locking pieces 61 are deformed under the extrusion of the first fixing ring 2 until the locking pieces 61 are aligned with the limiting grooves 62. Then the locking pieces 61 are reset and inserted into the limiting grooves 62. At this time, the fixation of the first fixing ring 2 is completed, and the installation operation of the present invention is completed.

[0045] In order to ensure the normal use of the present invention and the accuracy of its detection, when the present invention needs to be disassembled and maintained, the locking piece 61 is separated from the limiting groove 62, and the first fixing ring 2 is moved out from between all the locking pieces 61. It is only necessary to separate the first fixing ring 2 from the fixing seat 1, and there is no need to disassemble the fixing seat 1, which reduces the operating steps.

[0046] Example 5 This embodiment discloses a marine fire alarm device. Based on the fourth embodiment, a method for reinforcing the present invention is provided to reduce the impact of strong winds on the present invention.

[0047] See also Figure 1 、 Figure 2 and Figure 8 The lock body 71 is fixed with the locking cam 72 at the top and the locking cam 73 at the bottom, so that the locking cam 72 can be locked.

[0048] When the driving frame 22 moves, the driving frame 22 squeezes the pressure ring 72, causing the pressure ring 72 to move upward, and the pressure ring 72 drives all the extrusion rods 71 ​​thereon to move upward, and the extrusion rods 71 ​​squeeze the adjacent extrusion blocks 73, and all the extrusion blocks 73 move together toward the center of the first fixed ring 2, and the extrusion blocks 73 squeeze the adjacent positioning members 61 through the rubber blocks, so that the contact between the positioning members 61 and the first fixed ring 2 is closer, ensuring the stability of the present invention. In this process, as the wind force gradually increases, the moving distance of the driving frame 22 increases synchronously. The greater the force of the extrusion block 73 squeezing the positioning member 61, that is, the greater the fitting force of the positioning member 61 on the first fixed ring 2, and all the positioning members 61 form a clamping force on the first fixed ring 2.

[0049] While the disclosure has been described with respect to only a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that numerous other embodiments can be devised which do not depart from the scope of the invention.

Claims

1. A marine fire alarm device with an escape indication function, comprising a fixing seat (1), the fixing seat (1) being provided with a first fixing ring (2), the first fixing ring (2) being fixedly connected with a cover plate (3), the cover plate (3) being provided with a photoelectric detection module (101) and an alarm module (102), and characterized in that: include: A rotating ring (4) is rotatably connected to a side of the first fixed ring (2) away from the cover plate (3); the cover plate (3) is fixedly connected to a second fixed ring (5) rotatably connected to the rotating ring (4) through a round rod; the second fixed ring (5) is fixedly connected to an air casing (6) on a side away from the cover plate (3); a connecting frame (7) is fixedly connected to the outer side of the rotating ring (4); the connecting frame (7) is fixedly connected to a mounting plate (8); a rotating plate (9) is rotatably connected to one side of the mounting plate (8); an indicating module (10) is installed on the rotating plate (9); and a regulating mechanism for detecting wind direction and changing the indicating angle of the indicating module (10) is provided on the mounting plate (8).

2. A marine fire alarm device with an escape indication function according to claim 1, characterized in that: The regulatory agencies include: A fixed shell (21), the fixed shell (21) is fixedly connected to a side of the mounting plate (8) away from the rotating plate (9), and is used to detect wind direction. The fixed shell (21) is provided with an air passage; A driving frame (22), the driving frame (22) is slidably connected to the fixed shell (21) and is slidably connected to the mounting plate (8), and the driving frame (22) and the rotating plate (9) are driven by a rack and pinion; A fixed plate (23), the fixed plate (23) is fixedly connected to the fixed shell (21), and an elastic member is provided between the fixed plate (23) and the driving frame (22).

3. A marine fire alarm device with an escape indication function according to claim 1, characterized in that: A protective cover (31) is fixedly connected to one side of the mounting plate (8) close to the rotating plate (9); the rotating plate (9) and the indicating module (10) are both located in the protective cover (31); and the protective cover (31) is made of a transparent material.

4. A marine fire alarm device with an escape indication function according to claim 2, characterized in that include: An air guide mechanism is provided on the gas passage shell (6) and is used to guide the smoke and change the flow direction of the smoke. The air guide mechanism includes: A connecting plate (41), the connecting plate (41) being fixed to the gas-passing shell (6), and the connecting plate (41) being rotatably connected to the fixed shell (21); A rotating rod (42) is rotatably connected to the connecting plate (41), and the rotating rod (42) is fixedly connected to a first blade fan (43), and the first blade fan (43) is located in the gas casing (6).

5. A marine fire alarm device with an escape indication function according to claim 4, characterized in that: The rotating rod (42) is fixedly connected to a circumferentially distributed wind bearing shell (44).

6. A marine fire alarm device with an escape indication function according to claim 4, characterized in that: The utility model further comprises a second blade fan (52), an air outlet is provided on the rotating ring (4), the second blade fan (52) is rotatably connected to the air outlet of the rotating ring (4), the rotating shaft of the second blade fan (52) is fixedly connected to a third blade fan (53), the third blade fan (53) and the second blade fan (52) are respectively located on the inner and outer sides of the rotating ring (4), the rotating ring (4) is fixedly connected to a shielding plate (54), and the shielding plate (54) is located between the second blade fan (52) and the third blade fan (53).

7. A marine fire alarm device with an escape indication function according to claim 6, characterized in that: The air outlet of the rotating ring (4) and the air passage of the fixed shell (21) are aligned in the vertical direction.

8. A marine fire alarm device with an escape indication function according to claim 6, characterized in that: The shielding plate (54) is provided with symmetrically distributed inclined plates, and the distance between the two inclined plates gradually decreases from the side close to the second blade (52) to the side close to the third blade (53).

9. A marine fire alarm device with an escape indication function according to claim 2, characterized in that include: Circumferentially distributed locking members (61) are fixed to a side of the fixing seat (1) close to the first fixing ring (2), and a limiting groove (62) is provided on the outer side of the first fixing ring (2). The locking members (61) limit the first fixing ring (2) through the limiting groove (62).

10. A marine fire alarm device with an escape indication function according to claim 9, characterized in that: It also includes an extrusion rod (71), which is slidably connected to the outer side of the first fixing ring (2), and the extrusion rod (71) corresponds to the positioning member (61) one by one. All the extrusion rods (71) are fixedly connected to a pressure ring (72), and the pressure ring (72) is in compression contact with the driving frame (22). The fixing seat (1) is slidably connected to an extrusion block (73) with the same number as the extrusion rods (71), and an elastic block is provided between the extrusion block (73) and the adjacent positioning member (61).

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