A flame detector for a ship

Abstract

This application discloses a flame detector for ships, comprising: a fixed base, a rotating base, an angle adjustment plate, a mounting plate, and a detector head. The top of the fixed base is fixed to the top of the ship's hull. The rotating base is rotatably mounted on the bottom of the fixed base and can rotate relative to the fixed base between 0-360°. A base plate extends downward from the bottom of the rotating base. The angle adjustment plate is movably mounted on the base plate and can rotate vertically relative to the base plate. The mounting plate is fixed to the bottom of the angle adjustment plate. The detector head is mounted on the bottom of the mounting plate for detecting flames. This application allows for convenient adjustment of the detection angle without disassembly, reducing a significant amount of cutting and welding work.

Description

Technical Field

[0001] This application relates to the field of marine equipment technology, and in particular to a flame detector for ships. Background Technology

[0002] A flame detector, also known as a photosensitive fire detector, is a type of fire detector that responds to the light characteristics of a fire, specifically detecting the intensity of light emitted by a burning flame and the flickering frequency of the flame. Because the detection range of a flame detector is cone-shaped, it's impossible to visually determine whether the detection range completely covers the target device during installation. Therefore, multiple adjustments are often required, each necessitating the disassembly and reassembly of the detector's base. Furthermore, the coverage range of a flame detector is subject to requirements, depending on the distance and angle between the detector and the target. After installation, the detector's effectiveness must be tested. If the expected results are not achieved, the installation angle needs to be adjusted. Each adjustment of the flame detector base requires cutting and welding, which is time-consuming, labor-intensive, and makes precise angle adjustments difficult. Summary of the Invention

[0003] The purpose of this application is to provide a flame detector and method for ships, which can solve the above-mentioned problems existing in the prior art, and can conveniently adjust its detection angle without disassembly, thereby reducing a lot of cutting and welding work.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On one hand, a flame detector for ships is provided, installed in the hull of a ship and located at the top center of the hull. It includes: a fixed base, a rotating base, an angle adjustment plate, a mounting plate, and a detector head. The top of the fixed base is fixed to the top of the ship's hull. The rotating base is rotatably installed on the bottom of the fixed base and can rotate between 0-360° relative to the fixed base. The bottom of the rotating base extends downward to form a base plate. The angle adjustment plate is movably installed on the base plate and can rotate vertically relative to the base plate. The mounting plate is fixed to the bottom of the angle adjustment plate. The detector head is installed on the bottom of the mounting plate for detecting flames.

[0006] Optionally, the rotating base has an annular through slot that extends through the rotating base. A first locking member is provided on the through slot. One end of the first locking member is connected to the fixed base, and the other end passes through the through slot and abuts against the bottom of the rotating base. After the rotating base rotates relative to the fixed base, the first locking member locks the relative positions of the rotating base and the fixed base.

[0007] Optionally, the angle adjustment plate has a through arc-shaped groove, and a second locking member is provided on the arc-shaped groove. One end of the second locking member is connected to the base plate, and the other end passes through the arc-shaped groove and abuts against the outer side of the angle adjustment plate. After the angle adjustment plate rotates relative to the base plate, the relative position of the angle adjustment plate and the base plate is locked by the second locking member.

[0008] Optionally, the arc groove is in the shape of half a circle, and the angle adjustment plate can rotate relative to the substrate between 0-150° through the arc groove.

[0009] Optionally, it also includes a first driving device and a transmission assembly, wherein the power output end of the first driving device is connected to the transmission assembly, and the transmission assembly may be selectively connected to the rotating base or to the angle adjustment plate.

[0010] Optionally, the transmission assembly includes a first transmission member and a second transmission member. The first transmission member is connected between the first driving device and the rotating base, and the second transmission member is connected between the first driving device and the angle adjustment plate. The first transmission member can selectively engage with the rotating base for transmission or disengage from the rotating base. The second transmission member can selectively engage with the angle adjustment plate for transmission or disengage from the angle adjustment plate.

[0011] Optionally, the first transmission component includes a first electromagnetic telescopic rod, a first rotating rod, and a first gear. One end of the first rotating rod is connected to the rotating base, and the other end is connected to the first gear. The first electromagnetic telescopic rod is connected to the first gear and can drive the first gear to move back and forth between a first engagement position and a first disengagement position. When the first gear is in the first engagement position, the first gear is engaged with the power output end of the first driving device. When the first gear is in the first disengagement position, the first gear is disengaged from the power output end of the first driving device.

[0012] Optionally, the second transmission component includes a second electromagnetic telescopic rod, a second rotating rod, and a second gear. One end of the second rotating rod is connected to the angle adjustment plate, and the other end is connected to the second gear. The second electromagnetic telescopic rod is connected to the second gear and can drive the second gear to move back and forth between a second engagement position and a second disengagement position. When the second gear is in the second engagement position, the second gear engages with the power output end of the first driving device. When the second gear is in the second disengagement position, the second gear disengages from the power output end of the first driving device.

[0013] Optionally, it also includes a second driving device, the power output end of which is connected to the angle adjustment plate to drive the angle adjustment plate to rotate relative to the base plate.

[0014] Optionally, it also includes an abutment and a linkage. The abutment extends downward from the side of the fixed base, and the linkage is mounted on the mounting plate and abuts against the abutment. The abutment and the linkage are configured such that when the rotating base rotates relative to the fixed base, the abutment rotates relative to the linkage and abuts against different positions on the linkage, so that the linkage moves vertically relative to the abutment, thereby causing the mounting plate to rotate up and down relative to the rotating base.

[0015] Optionally, the contact surface between the linkage and the abutting member is an arc-shaped surface.

[0016] Optionally, the arcuate surface includes two ends, and the curvature between the two ends decreases uniformly.

[0017] Optionally, two abutting members are provided, namely a first abutting member and a second abutting member. The first abutting member and the second abutting member are disposed on the side of the fixed base without gap, and the vertical height of the first abutting member is less than the vertical height of the second abutting member. When the first abutting member abuts against the linkage member and pushes the mounting plate to rotate to a first set angle, the second abutting member abuts against the linkage member and continues to push the mounting plate to rotate to a second set angle, wherein the first set angle is less than the second set angle.

[0018] Optionally, the marine flame detector includes two operating modes: synchronous rotation adjustment and asynchronous rotation adjustment. The abutment is movably mounted on the fixed base and can extend or retract relative to the fixed base. In the synchronous rotation adjustment mode, the abutment extends and abuts against the linkage. In the asynchronous rotation adjustment mode, the abutment retracts and does not contact the linkage.

[0019] The beneficial effects of this application are as follows: During the testing or actual use of the flame detector, the rotation of the rotating base relative to the fixed base in the horizontal direction, combined with the rotation of the angle adjustment plate relative to the rotating base in the vertical direction, enables omnidirectional angle adjustment of the detector head. This saves a significant amount of cutting and welding work caused by disassembly and assembly during angle adjustment, greatly improving the testing results. Furthermore, it greatly facilitates adjustment work in practical applications, and allows for fine-tuning of the direction and angle of the detector head according to detection requirements, thereby improving the alignment accuracy of the detection range. In addition, to achieve intelligent adjustment, a drive device is configured on the basis of the device. This drive device enables automated adjustment of the detector head in both the horizontal and vertical directions. Adjustment via the drive device results in more precise and reliable angle adjustments, reduces manual operation steps, and effectively improves adjustment efficiency. Moreover, for flame detectors already installed in the ship's cabin, the detection angle can be adjusted remotely via a controller, which is convenient and quick. Attached Figure Description

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of the marine flame detector described in the embodiments of this application;

[0022] Figure 2 This is an explosion diagram of the marine flame detector described in the embodiments of this application;

[0023] Figure 3 This is a schematic diagram of the structure of the rotating base described in the embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the angle adjustment plate and mounting base plate described in the embodiments of this application;

[0025] Figure 5 This is a schematic diagram of the structure of the first driving device and transmission assembly in the embodiments of this application.

[0026] In the figure: 1. Fixed base; 2. Rotating base; 3. Angle adjustment plate; 4. Mounting plate; 5. Base plate; 6. First locking element; 7. Second locking element; 8. Rotating rod; 9. Through groove; 10. Arc groove; 11. Rotating hole; 12. First electromagnetic telescopic rod; 13. First rotating rod; 14. First gear; 15. Second rotating rod; 16. Second electromagnetic telescopic rod; 17. Second gear; 18. First driving device. Detailed Implementation

[0027] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Example 1: A flame detector for ships.

[0031] like Figure 1 , Figure 2 As shown, this embodiment provides a flame detector for ships, installed in the ship's hull and located at the top center of the hull. It includes: a fixed base 1, a rotating base 2, an angle adjustment plate 3, a mounting plate 4, and a detector head. The top of the fixed base 1 is fixed to the top of the ship's hull. The rotating base 2 is rotatably installed on the bottom of the fixed base 1 and can rotate relative to the fixed base 1 between 0-360°. The bottom of the rotating base 2 extends downward to form a base plate 5. The angle adjustment plate 3 is movably installed on the base plate 5 and can rotate relative to the base plate 5 in the vertical direction. The mounting plate 4 is fixed to the bottom of the angle adjustment plate 3. The detector head is installed on the bottom of the mounting plate 4 for detecting flames.

[0032] In the above scheme, the fixed base 1 serves as the base for the entire flame detector. Its top is fixed to the top of the ship's hull, and its bottom is used to rotatably connect to the rotating base 2. The rotating base 2 can rotate relative to the fixed base 1. The angle adjustment plate 3 is movably mounted on the base plate 5 at the bottom of the rotating base 2. The angle adjustment plate 3 rotates in the vertical direction, which can be understood as an up-and-down rocking motion. Then, the mounting plate 4 is fixedly mounted on the bottom of the angle adjustment plate 3 for mounting the detector head, which is used to detect flames. In terms of the entire structure, the various components are detachable and not welded together. Moreover, the two main components, the rotating base 2 and the angle adjustment plate 3, are both movable. That is to say, the horizontal rotation of the rotating base 2 combined with the vertical rotation of the angle adjustment plate 3 can achieve omnidirectional angle adjustment of the detector head for flame detection. During the adjustment process, the rotating base 2 can rotate 360° horizontally in all directions. The entire device is located at the center of the top of the hull, which allows for flame detection in all positions within the hull. Combined with the vertical rotation of the angle adjustment plate 3, it can cover all spaces within the hull to meet the requirements of the flame detection scheme. When using this flame detector for angle adjustment, the orientation angle of the detector head can be adjusted by rotating the base 2 and the angle adjustment plate 3 without disassembly. This saves a lot of cutting and welding work caused by disassembly and assembly when adjusting the orientation and angle of the detector head, effectively improving efficiency. Furthermore, the direction and angle of the detector head can be finely adjusted according to actual needs, thus improving the alignment accuracy of the detection range.

[0033] In the above scheme, the adjustment method of the rotating base 2 and the angle adjustment plate 3 can be manual or automatic. The two different adjustment methods will be described in detail below.

[0034] In the manually adjustable configuration, the rotating base 2 has an annular through-slot 9. A first locking member 6 is provided on the through-slot 9. One end of the first locking member 6 is connected to the fixed base 1, and the other end passes through the through-slot 9 and abuts against the bottom of the rotating base 2. After the rotating base 2 rotates relative to the fixed base 1, the first locking member 6 locks the relative positions of the rotating base 2 and the fixed base 1. Figure 4As shown, the angle adjustment plate 3 has a through arc-shaped groove 10, and a second locking member 7 is provided on the arc-shaped groove 10. One end of the second locking member 7 is connected to the base plate 5, and the other end passes through the arc-shaped groove 10 and abuts against the outer surface of the angle adjustment plate 3. After the angle adjustment plate 3 rotates relative to the base plate 5, the relative position of the angle adjustment plate 3 and the base plate 5 is locked by the second locking member 7. In this scheme, by loosening the first locking member 6 and the second locking member 7, both the rotating base 2 and the angle adjustment plate 3 are in a loose and adjustable state. Then, the rotating base 2 is rotated horizontally and the angle adjustment plate 3 is rotated vertically as needed. When adjusted to the corresponding position, the first locking member 6 and the second locking member 7 are tightened and locked respectively to ensure that no shaking or displacement occurs during use.

[0035] It is worth mentioning that the opening of through slot 9 can be adjusted according to actual needs, such as... Figure 3 As shown, the through groove 9 consists of two symmetrical grooves. The purpose of this design is to limit the rotation angle of the rotating base 2. In this scheme, the rotating base 2 can only rotate between 0-120° relative to the fixed base 1.

[0036] To improve adjustment accuracy, the horizontal rotation angle can be marked on the bottom of the rotating base 2 at the edge of the through groove 9, and the vertical rotation angle can be marked on the edge of the arc groove 10. Using the locking positions of the first locking member 6 and the second locking member 7 as a reference, when the rotating base 2 rotates, the first locking member 6 remains stationary. That is, after the through groove 9 rotates relative to the first locking member 6, the marked horizontal rotation angle corresponding to the first locking member 6 is the current adjustment angle of the rotating base 2. Similarly, during the adjustment of the angle adjustment plate 3 and the second locking member 7, when the angle adjustment plate 3 rotates vertically relative to the base plate 5, the second locking member 7 also remains stationary. When the marked vertical rotation angle corresponds to the second locking member 7, it is the current adjustment angle of the angle adjustment plate 3. These markings clearly reflect the current angle adjustment status, allowing operators to directly know the current angle and facilitating precise angle adjustments.

[0037] Specifically, the arc groove 10 is in the shape of half a circle, and the angle adjustment plate 3 can rotate relative to the base plate 5 between 0-150° through the arc groove 10.

[0038] In the above scheme, there are two base plates 5. An angle adjustment plate 3 and the mounting base plate 4 form an open structure. The two angle adjustment plates 3 are located on the outside of the two base plates 5. A rotating rod 8 protrudes outward from the inside of the base plate 5. A rotating hole 11 is opened on the angle adjustment plate 3. The rotating rod 8 is inserted into the rotating hole 11. During the rotation, the angle adjustment plate 3 rotates up and down around the rotating rod 8 as the fulcrum and is locked by the second locking member 7.

[0039] In automatic adjustment schemes, such as Figure 5 As shown, the system also includes a first driving device 18 and a transmission assembly. The power output end of the first driving device 18 is connected to the transmission assembly. The transmission assembly can be selectively connected to the rotating base 2 or the angle adjustment plate 3. By selectively driving the rotation of the rotating base 2 or the angle adjustment plate 3 through the transmission assembly, when connected to the rotating base 2, the first driving device 18 drives the rotating base 2 to rotate and adjust via the transmission assembly. When connected to the angle adjustment plate 3, the first driving device 18 drives the angle adjustment plate 3 to rotate via the transmission assembly. The transmission assembly moves back and forth between the rotating base 2 and the angle adjustment plate 3 according to actual rotation requirements, thereby controlling the rotation of different components to adjust the angle of the probe.

[0040] To achieve precise control of the rotation of the rotating base 2 and the angle adjustment plate 3 by the transmission assembly, the transmission assembly is divided into a first transmission component and a second transmission component. The first transmission component is connected between the first drive device 18 and the rotating base 2, and the second transmission component is connected between the first drive device 18 and the angle adjustment plate 3. The first transmission component can selectively engage with or disengage from the rotating base 2, and the second transmission component can selectively engage with or disengage from the angle adjustment plate 3. This solution includes three different rotation control schemes: the first is where only the first transmission component engages with the rotating base 2; the second is where only the second transmission component engages with the angle adjustment plate 3; and the third is where both the first and second transmission components engage with the rotating base 2 and the angle adjustment plate 3. These three control schemes correspond to different rotation adjustment requirements. When only individual adjustment is needed, the first or second scheme can be selected; when combined rotation is required, the third control scheme is used.

[0041] Based on the third linkage adjustment scheme mentioned above, it is quite applicable in the experiment. The rotation angles of the two planes are preset according to the test requirements, and then the two rotation angles are combined to cover all areas that need to be detected. This allows for a linkage adjustment scheme, where the rotation of the rotating base 2 and the angle adjustment plate 3 are simultaneously adjusted by the first drive device 18, resulting in higher adjustment efficiency and greater convenience. In practical applications, multiple angle combination schemes can be preset in the installation space to detect most areas of the current installation space or areas most likely to experience fires. Then, corresponding control logic is configured to adaptively adjust. This can be understood as the detection angle of the detector head in this scheme not being fixed but rather dynamic in real time, or automatically cyclically adjusting within a certain time period to comprehensively cover and detect all spaces.

[0042] Specifically, the first transmission component includes a first electromagnetic telescopic rod 12, a first rotating rod 13, and a first gear 14. One end of the first rotating rod 13 is connected to the rotating base 2, and the other end is connected to the first gear 14. The first electromagnetic telescopic rod 12 is connected to the first gear 14 and can drive the first gear 14 to move back and forth between a first engagement position and a first disengagement position. When the first gear 14 is in the first engagement position, the first gear 14 is engaged with the power output end of the first driving device 18. When the first gear 14 is in the first disengagement position, the first gear 14 is disengaged from the power output end of the first driving device 18.

[0043] The second transmission component includes a second electromagnetic telescopic rod 16, a second rotating rod 15, and a second gear 17. One end of the second rotating rod 15 is connected to the angle adjustment plate 3, and the other end is connected to the second gear 17. The second electromagnetic telescopic rod 16 is connected to the second gear 17 and can drive the second gear 17 to move back and forth between a second engagement position and a second disengagement position. When the second gear 17 is in the second engagement position, the second gear 17 is engaged with the power output end of the first driving device 18. When the second gear 17 is in the second disengagement position, the second gear 17 is disengaged from the power output end of the first driving device 18.

[0044] Based on the specific structure of the first and second transmission components, the working principles of the first and second transmission components are the same. Taking the first transmission component as an example, when the first electromagnetic telescopic rod 12 is energized, it will drive the first gear 14 to mesh with the power output end of the first drive device 18. When the first electromagnetic telescopic rod 12 is de-energized, it will drive the first gear 14 to disengage. Through electrical control, different gears can mesh with the first drive device 18, or the first gear 14 and the second gear 17 can mesh with the first drive device 18 at the same time to achieve synchronous drive rotation.

[0045] Unlike the aforementioned automatic adjustment scheme, this scheme also includes a second driving device. The power output end of the second driving device is connected to the angle adjustment plate 3, driving the angle adjustment plate 3 to rotate relative to the base plate 5. This scheme includes two driving devices: a first driving device 18 and a second driving device. The first driving device 18 is used to drive the rotating base 2 to rotate independently, and the second driving device drives the angle adjustment plate 3 to rotate independently. By having two driving devices drive the rotation of different planes respectively, they do not interfere with each other, resulting in more precise control and simpler assembly.

[0046] Example 2: A flame detector for ships.

[0047] This embodiment provides an implementation scheme different from Embodiment 1, specifically including a contact member and a linkage member. The contact member extends downward from the side of the fixed base 1, and the linkage member is mounted on the mounting plate 4 and abuts against the contact member. The contact member and the linkage member are configured such that when the rotating base 2 rotates relative to the fixed base 1, the contact member rotates relative to the linkage member, thereby abutting against different positions on the linkage member, causing the linkage member to displace vertically relative to the contact member, thereby causing the mounting plate 4 to rotate up and down relative to the rotating base 2. This scheme also applies to both manual and automatic adjustment. Through the cooperation of the contact member and the linkage member, the rotating base 2 and the angle adjustment plate 3 can be adjusted in a coordinated manner, or the rotation of the rotating base 2 or the angle adjustment plate 3 can be controlled separately.

[0048] To achieve reasonable linkage adjustment at different angles, the contact surface between the linkage component and the abutment component is an arc-shaped surface. In this design, the purpose of setting the arc-shaped surface is to ensure that when rotating horizontally, the abutment component can abut against arc-shaped surfaces of different curvatures, thereby transforming into vertical rotation at different angles.

[0049] Optionally, the arcuate surface includes two ends, and the curvature between the two ends decreases uniformly. The purpose of this design is to uniformly adjust the vertical rotation, so that the rotation angle is adjusted step by step within a preset range.

[0050] Optionally, two abutting members are provided, namely a first abutting member and a second abutting member. The first abutting member and the second abutting member are disposed on the side of the fixed base 1 without gap, and the vertical height of the first abutting member is less than the vertical height of the second abutting member. When the first abutting member abuts against the linkage member and pushes the mounting plate 4 to rotate to a first set angle, the second abutting member abuts against the linkage member and continues to push the mounting plate 4 to rotate to a second set angle, wherein the first set angle is less than the second set angle.

[0051] Optionally, the marine flame detector includes two operating modes: synchronous rotation adjustment and asynchronous rotation adjustment. The abutment is movably mounted on the fixed base 1 and can extend or retract relative to the fixed base 1. In the synchronous rotation adjustment mode, the abutment extends and abuts against the linkage. In the asynchronous rotation adjustment mode, the abutment retracts and does not contact the linkage.

[0052] In the above embodiments, the abutment is movably installed. That is, when the linkage adjustment of the rotating base 2 and the angle adjustment plate 3 is not required, in order to avoid the interference of the abutment on the detection effect, the abutment can be retracted into the fixed base 1 without being exposed. When linkage adjustment is required, the abutment is extended relative to the fixed base 1 and then abuts and drives with the linkage component.

[0053] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0054] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0056] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A flame detector for ships, installed inside the ship's hull and located at the top center of the hull, characterized in that, include: The fixed base (1), rotating base (2), angle adjustment plate (3), mounting plate (4), and probe are provided. The top of the fixed base (1) is fixed to the top of the ship's hull. The rotating base (2) is rotatably mounted on the bottom of the fixed base (1) and can rotate between 0-360° relative to the fixed base (1). The bottom of the rotating base (2) extends downward to form a base plate (5). The angle adjustment plate (3) is movably mounted on the base plate (5) and can rotate vertically relative to the base plate (5). The mounting plate (4) is fixed to the bottom of the angle adjustment plate (3). The probe is mounted on the bottom of the mounting plate (4) for detecting flames. It also includes an abutment and a linkage. The abutment extends downward from the side of the fixed base (1), and the linkage is installed on the mounting plate (4) and abuts against the abutment. The abutment and the linkage are configured such that when the rotating base (2) rotates relative to the fixed base (1), the abutment rotates relative to the linkage and abuts against different positions on the linkage, so that the linkage moves vertically relative to the abutment, thereby causing the mounting plate (4) to rotate up and down relative to the rotating base (2). Two abutting members are provided, namely a first abutting member and a second abutting member. The first abutting member and the second abutting member are disposed without gap on the side of the fixed base (1), and the vertical height of the first abutting member is less than the vertical height of the second abutting member. When the first abutting member abuts against the linkage member and pushes the mounting plate (4) to rotate to a first set angle, the second abutting member abuts against the linkage member and continues to push the mounting plate (4) to rotate to a second set angle, wherein the first set angle is less than the second set angle.

2. The marine flame detector according to claim 1, characterized in that, The rotating base (2) has an annular through groove (9) that passes through the rotating base (2). A first locking member (6) is provided on the through groove (9). One end of the first locking member (6) is connected to the fixed base (1), and the other end passes through the through groove (9) and abuts against the bottom of the rotating base (2). After the rotating base (2) rotates relative to the fixed base (1), the first locking member (6) locks the relative position of the rotating base (2) and the fixed base (1).

3. The marine flame detector according to claim 1 or 2, characterized in that, An arc-shaped groove (10) is provided on the angle adjustment plate (3). A second locking member (7) is provided on the arc-shaped groove (10). One end of the second locking member (7) is connected to the base plate (5), and the other end passes through the arc-shaped groove (10) and abuts against the outer side of the angle adjustment plate (3). After the angle adjustment plate (3) rotates relative to the base plate (5), the relative position of the angle adjustment plate (3) and the base plate (5) is locked by the second locking member (7).

4. The marine flame detector according to claim 3, characterized in that, The arc groove (10) is half a circle, and the angle adjustment plate (3) can rotate relative to the substrate (5) between 0-150° through the arc groove (10).

5. The marine flame detector according to claim 1, characterized in that, It also includes a first drive device (18) and a transmission assembly. The power output end of the first drive device (18) is connected to the transmission assembly. The transmission assembly can be selectively connected to the rotating base (2) or to the angle adjustment plate (3).

6. The marine flame detector according to claim 5, characterized in that, The transmission assembly includes a first transmission component and a second transmission component. The first transmission component is connected between the first driving device (18) and the rotating base (2). The second transmission component is connected between the first driving device (18) and the angle adjustment plate (3). The first transmission component can selectively engage with the rotating base (2) or disengage from the rotating base (2). The second transmission component can selectively engage with the angle adjustment plate (3) or disengage from the angle adjustment plate (3).

7. The marine flame detector according to claim 6, characterized in that, The first transmission component includes a first electromagnetic telescopic rod (12), a first rotating rod (13), and a first gear (14). One end of the first rotating rod (13) is connected to the rotating base (2), and the other end is connected to the first gear (14). The first electromagnetic telescopic rod (12) is connected to the first gear (14) and can drive the first gear (14) to move back and forth between the first engagement position and the first disengagement position. When the first gear (14) is in the first engagement position, the first gear (14) is engaged with the power output end of the first driving device (18). When the first gear (14) is in the first disengagement position, the first gear (14) is disengaged from the power output end of the first driving device (18).

8. The marine flame detector according to claim 6, characterized in that, The second transmission component includes a second electromagnetic telescopic rod (16), a second rotating rod (15), and a second gear (17). One end of the second rotating rod (15) is connected to the angle adjustment plate (3), and the other end is connected to the second gear (17). The second electromagnetic telescopic rod (16) is connected to the second gear (17) and can drive the second gear (17) to move back and forth between the second engagement position and the second disengagement position. When the second gear (17) is in the second engagement position, the second gear (17) is engaged with the power output end of the first drive device (18). When the second gear (17) is in the second disengagement position, the second gear (17) is disengaged from the power output end of the first drive device (18).

9. The marine flame detector according to claim 5, characterized in that, It also includes a second driving device, the power output end of which is connected to the angle adjustment plate (3) to drive the angle adjustment plate (3) to rotate relative to the base plate (5).

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