Sound-light alarm device for ship rake arm safety

Abstract

The utility model discloses a sound-light alarm device for ship rake arm safety, which comprises a rake arm, a rake head is mounted on the rake arm, alarms are mounted on two sides of the rake head, and the alarms are mounted on the rake head through mounting mechanisms. The mounting mechanism comprises a mounting sleeve, sliding rods, sliding blocks, clamping blocks, a mounting rod, clamping grooves and locking mechanisms, the mounting sleeve is mounted on the alarm, the multiple sliding rods are mounted in the mounting sleeve, the sliding blocks are slidably mounted on the multiple sliding rods, the clamping blocks are mounted on the inner sides of the multiple sliding blocks, the mounting rod is mounted on the side wall of the rake head, and the clamping grooves are formed in the mounting rod. And the locking mechanism comprises a rotating sleeve, an inner gear ring, a screw rod, a gear, a transmission sleeve and a push sleeve, so that the problems that in the background technology, a traditional alarm generally adopts a fixed type installation design, the design is relatively tedious when needing to be replaced or maintained, and the cost is high are solved. And rapid disassembly and reinstallation cannot be carried out.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ship harrow arm operation, more specifically, it relates to a sound and light alarm device for ship harrow arm safety. BACKGROUND

[0002] The alarm is usually composed of a sound alarm module, a light signal module and a control circuit, wherein the sound alarm module generates high-decibel sound through a buzzer or a loudspeaker, has strong penetrating power, the light signal module emits flashing light signals through high-brightness LEDs or flashlights, can attract attention in poor visibility environments, the device usually supports multiple alarm modes (such as continuous sound and light, intermittent sound and light), and can be linked with various sensors, controllers or security systems, and is widely used in fire alarm, equipment fault alarm, dangerous area warning and other scenes.

[0003] In the actual application of ship harrow arm operation, the alarm, as a key safety prompting device, often needs to be exposed to the external environment for a long time. However, due to the complex ship operation environment, the harrow arm often moves or operates in a narrow area, and the alarm may be subjected to collision with external objects, such as contact with the ship cabin wall, equipment or other obstacles. Such collision can easily cause damage to the alarm, affecting its normal operation, thereby increasing the safety risk in operation. Therefore, the alarm in the prior art usually lacks perfect protection design and cannot effectively respond to external impact, which significantly restricts its reliability and service life in harsh environments.

[0004] In addition, the ship operation has high requirements for the flexibility and maintenance convenience of the equipment, but the traditional alarm usually adopts fixed installation design. This design is relatively cumbersome when it needs to be replaced or repaired, cannot be quickly disassembled and reinstalled, wastes time and affects operation efficiency. This situation is particularly prominent in emergency situations, delaying the repair or replacement of the alarm device, which may increase the risk of operation. Therefore, there is an urgent need for an alarm device that can be conveniently and quickly installed and disassembled, and has the ability to resist external impact, to improve the safety, stability and maintenance efficiency of the equipment, and meet the actual needs of ship harrow arm operation. SUMMARY

[0005] (I) Technical problem solved

[0006] In view of the problems in the prior art, the utility model provides a sound and light alarm device for ship harrow arm safety to solve the technical problem that the traditional alarm in the background art usually adopts fixed installation design, which is relatively cumbersome when it needs to be replaced or repaired, and cannot be quickly disassembled and reinstalled.

[0007] (II) Technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: A sound and light alarm device for ship harrow arm safety, including harrow arm, the harrow arm is equipped with harrow head, the both sides of harrow head are equipped with alarm, the alarm is all installed on the harrow head through being equipped with mounting mechanism, the mounting mechanism includes installation sleeve, slide rod, sliding block, clamping block, mounting rod, clamping groove and locking mechanism, the installation sleeve is installed on the alarm, the slide rod is provided with multiple groups and is installed in the installation sleeve, the sliding block is slidably installed on multiple slide rods, the clamping block is installed in the inside of multiple sliding blocks, the mounting rod is installed in the side wall of harrow head, the clamping groove is provided with multiple groups and is distributed on the outer wall of mounting rod, the locking mechanism includes rotary sleeve, inner tooth ring, screw rod, gear, transmission sleeve and push sleeve, the rotary sleeve is rotatably installed on the outer wall of installation sleeve, the inner tooth ring is installed at the bottom of rotary sleeve, the screw rod is provided with multiple groups and is rotatably installed on the installation sleeve, the gear is installed at the top of multiple screw rods and is engaged with the inner tooth ring, the transmission sleeve is slidably installed on the installation sleeve and is threadedly connected with multiple screw rods, the push sleeve is installed in the inside of transmission sleeve.

[0009] The utility model further sets up, multiple slide rods are all obliquely installed in the installation sleeve, the obliquely installed slide rod design can optimize the motion track of sliding block, makes the connection and disassembly of alarm more smooth, improves the installation efficiency of device.

[0010] The utility model further sets up, the outer wall of multiple slide rods is equipped with slide strip, multiple slide strips are slidably connected with multiple sliding blocks respectively, the setting of slide strip greatly improves the stability of sliding between sliding block and slide rod, reduces the friction and vibration in the sliding process, this can not only prolong the service life of device, but also guarantees the accuracy of action of sliding block in the process of connection or disassembly.

[0011] The utility model further sets up, the top of installation sleeve is equipped with locating plate, the locating plate is provided with multiple groups, the top of mounting rod is equipped with locating groove, the locating groove is provided with multiple groups and is matched with multiple locating plates respectively, the cooperation of locating plate and locating groove guarantees that mounting rod can be quickly aligned with installation sleeve, avoids the installation difficulty caused by position deviation when connecting, this structure not only shortens the installation time, but also improves the reliability and stability of equipment connection.

[0012] The utility model further sets up, the bottom surface of multiple sliding blocks and installation sleeve is all equipped with tension spring, the setting of tension spring makes sliding block can return to the initial position automatically after separating from clamping groove or installation position, facilitates next use, this design can significantly improve the efficiency of installation and disassembly, and reduces the operation steps of artificial adjustment.

[0013] The utility model further sets up, a plurality of groups the sliding block bottom surface all are equipped with the connecting block, the push sleeve top is equipped with the connecting groove, the connecting groove is equipped with a plurality of groups and is connected with a plurality of groups the sliding block of connecting block respectively, the sliding connection design of connecting block and connecting groove can realize the synchronous control of push sleeve to sliding block, ensure that sliding block is consistent in the process of installation and disassembly, avoid the problem of uneven or jamming of sliding block position, thereby promote the working efficiency and reliability of overall device.

[0014] The utility model further sets up, the positioning mechanism is arranged on the rotating sleeve, the positioning mechanism includes positioning hole, locating block, push spring, compression sleeve and compression spring, the positioning hole is equipped with a plurality of groups and is distributed in the outer wall of mounting sleeve, the locating block is equipped with a plurality of groups and is slidably installed on the rotating sleeve, the push spring is equipped with a plurality of groups and is connected with a plurality of groups the top of locating block and rotating sleeve outer wall respectively, the compression sleeve is slidably installed on the outer wall of mounting sleeve, and the both ends of the compression spring are connected with the mounting sleeve and the compression sleeve respectively.

[0015] The utility model further sets up, the outer wall of mounting sleeve is equipped with strip groove, the strip groove is equipped with a plurality of groups and is connected with compression sleeve slidably, the design of strip groove makes the compression sleeve when sliding have clear movement direction, prevent the compression sleeve from appearing deviation or loosening in the operation process, and this structure improves the stability of compression sleeve, further enhances the reliability and operation convenience of device.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a sound and light alarm device for ship rake arm safety, has the following beneficial effects:

[0018] 1, the beneficial effect of installation mechanism lies in that it can realize the quick installation and disassembly of alarm and rake head, through the plug-in structure of mounting sleeve and mounting rod, when the positioning plate and positioning groove abut each other, by the inclined design of slide rod and the sliding connection of sliding block, cooperate the clamping mode of clamping block and clamping groove, can make the alarm have higher stability and firmness in the connection process, in addition, the sliding block and slide rod are connected through the tension spring, ensure that the sliding block can quickly reset when being pushed, thereby further improve the efficiency of installation and disassembly, make the installation of alarm more convenient and reliable, reduce the operation time simultaneously.

[0019] 2、The locking mechanism drives the inner gear ring to rotate through the rotation of the sleeve, the inner gear ring meshes with the gear to rotate and further drives the screw to realize the sliding of the transmission sleeve, the transmission sleeve is connected with the sliding block through the push sleeve, so that the sliding block gradually approaches inward along the slide rod, thereby pushing the clamping block into the clamping groove, realizing the locking installation of the alarm, when reversing, the reverse sliding of the transmission sleeve drives the push sleeve to pull the sliding block to expand outward, so that the clamping block is separated from the clamping groove, thereby realizing the quick disassembly of the alarm, the structure realizes the stability and reliability of the alarm connection and disassembly through the threaded transmission design of the screw, avoiding the loosening risk caused by the fixedness in the traditional device.

[0020] 3、The positioning mechanism embeds the positioning block into the positioning hole under the elastic action of the push spring, and the compression spring pushes the compression sleeve to press the positioning block, so that the rotating sleeve can be stably positioned, effectively avoiding the misoperation of the alarm caused by the loosening of the rotating sleeve during locking, when the positioning needs to be released, sliding the compression sleeve upward can overcome the elastic force of the push spring to release the restriction of the positioning block, the round corner design enables the positioning block to smoothly exit the positioning hole, ensuring that the rotating sleeve can rotate smoothly, further enhancing the operation convenience and safety of the device, and improving the reliability and operation efficiency of the alarm. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic view of a sound-light alarm device for ship rake arm safety in the utility model;

[0022] Figure 2 It is a structure schematic view of the alarm in the utility model;

[0023] Figure 3 It is a structure schematic view of the alarm in the utility model;

[0024] Figure 4 It is a partial enlarged view in the utility model Figure 3

[0025] Figure 5 It is a sectional view of the positioning mechanism in the utility model;

[0026] Figure 6 It is a sectional view of the connection structure of the push sleeve and the sliding block in the utility model.

[0027] In the drawing: 1, rake arm; 2, rake head; 3, alarm; 4, mounting sleeve; 5, slide rod; 6, sliding block; 7, clamping block; 8, mounting rod; 9, clamping groove; 10, rotating sleeve; 11, inner gear ring; 12, screw; 13, gear; 14, transmission sleeve; 15, push sleeve; 16, slide strip; 17, positioning plate; 18, positioning groove; 19, tension spring; 20, connecting block; 21, connecting groove; 22, positioning hole; 23, positioning block; 24, push spring; 25, compression sleeve; 26, compression spring; 27, strip-shaped groove.​ DETAILED DESCRIPTION

[0028] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0030] In the present application, unless otherwise stated, the orientation such as "up, down" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the present application.

[0031] Please refer to Figures 1-6 A kind of for ship harrow arm safety acousto-optic alarm device, including harrow arm 1, it is equipped with rake head 2 on harrow arm 1, alarm 3 is equipped with on the both sides of rake head 2, alarm 3 is all installed on rake head 2 by being equipped with mounting mechanism, mounting mechanism includes mounting sleeve 4, slide bar 5, sliding block 6, clamping block 7, mounting rod 8, clamping groove 9 and locking mechanism, mounting sleeve 4 is installed on alarm 3, slide bar 5 is equipped with multiple groups in mounting sleeve 4, sliding block 6 is slidably installed on multiple slide bar 5, clamping block 7 is installed in multiple sliding block 6 inner side, mounting rod 8 is installed in the side wall of rake head 2, clamping groove 9 is equipped with multiple groups and is distributed on the outer wall of mounting rod 8, locking mechanism includes rotating sleeve 10, inner tooth ring 11, screw 12, gear 13, transmission sleeve 14 and push sleeve 15, rotating sleeve 10 is rotatably installed on the outer wall of mounting sleeve 4, inner tooth ring 11 is installed at the bottom of rotating sleeve 10, screw 12 is equipped with multiple groups and is rotatably installed on mounting sleeve 4, gear 13 is installed at the top of multiple screw 12 and is engaged with inner tooth ring 11, transmission sleeve 14 is slidably installed on mounting sleeve 4 and is threadedly connected with multiple screw 12, push sleeve 15 is installed in the inner side of transmission sleeve 14.

[0032] Multiple slide bar 5 are all obliquely installed in mounting sleeve 4, slide bar 5 is installed in mounting sleeve 4 in an inclined manner, sliding block 6 slides along the inclined direction of slide bar 5, to reduce sliding resistance and wear.

[0033] Multiple slide bar 5 outer walls are all equipped with slide bar 16, multiple slide bar 16 are slidably connected with multiple sliding block 6 respectively, the slide bar 16 of slide bar 5 outer wall is slidably connected to ensure that sliding block 6 slides smoothly along the track, to avoid deviation.

[0034] The top end of the mounting sleeve 4 is provided with a plurality of positioning plates 17, the top end of the mounting rod 8 is provided with a plurality of positioning grooves 18 matched with the positioning plates 17, and the positioning plates 17 and the positioning grooves 18 are accurately matched to realize accurate alignment during installation.

[0035] A plurality of pull springs 19 are connected between the bottom surfaces of the plurality of sliding blocks 6 and the mounting sleeve 4, the pull springs 19 connect the sliding blocks 6 and the mounting sleeve 4, provide a rebound force, and ensure the return of the sliding blocks.

[0036] A plurality of connecting blocks 20 are mounted on the bottom surfaces of the plurality of sliding blocks 6, and a plurality of connecting grooves 21 are formed in the top surface of the push sleeve 15 and are slidably connected with the connecting blocks 20, so that the push sleeve drives the sliding blocks to move through the sliding connection between the connecting blocks 20 and the connecting grooves 21.

[0037] In this embodiment, when the alarm 3 is installed, the mounting sleeve 4 mounted on the alarm 3 is inserted into the mounting rod 8, when the positioning grooves 18 at the top end of the mounting rod 8 abut against the positioning plates 17 at the top end of the mounting sleeve 4, the rotating sleeve 10 drives the inner tooth ring 11 to rotate, the inner tooth ring 11 rotates and engages with the plurality of gears 13, the plurality of screw rods 12 can rotate synchronously with the gears 13 through the rotation of the rotating sleeve 10, the screw rods 12 control the sliding of the transmission sleeve 14 through threaded connection, the push sleeve 15 is arranged in the inner side of the transmission sleeve 14, when the transmission sleeve 14 moves upward, a plurality of connecting grooves 21 arranged on the top surface of the push sleeve 15 are gradually connected with the connecting blocks 20 on the bottom surfaces of the plurality of sliding blocks 6, thereby pushing the plurality of sliding blocks 6 to slide along the plurality of inclined sliding rods 5, so that the plurality of sliding blocks 6 gradually move inward, the plurality of sliding blocks 6 push the plurality of clamping blocks 7 to be clamped in the plurality of clamping grooves 9 arranged on the outer wall of the mounting rod 8, then the rotating sleeve 10 is fixed through the positioning mechanism, and the connection and installation of the alarm 3 and the harrow head 2 are completed, when the alarm 3 needs to be disassembled, the positioning mechanism is released to fix the rotating sleeve 10, the rotating sleeve 10 is reversely rotated, the inner tooth ring 11 and the plurality of gears 13 are engaged to rotate to drive the plurality of screw rods 12 to reversely rotate, the screw rods 12 drive the transmission sleeve 14 to slide downward, the push sleeve 15 pulls the plurality of sliding blocks 6 to gradually expand outward along the sliding rods 5, so that the plurality of clamping blocks 7 are disengaged from the clamping grooves 9 and the mounting rod 8, and then the alarm 3 is disassembled.

[0038] Please refer to Figure 5As an embodiment of the positioning mechanism: the rotating sleeve 10 is provided with a positioning mechanism, which comprises a positioning hole 22, a positioning block 23, a push spring 24, a compression sleeve 25 and a compression spring 26. The positioning hole 22 is provided with a plurality of groups distributed on the outer wall of the mounting sleeve 4. The positioning block 23 is provided with a plurality of groups which are slidingly installed on the rotating sleeve 10. The push spring 24 is provided with a plurality of groups which are respectively connected to the top end of the plurality of positioning blocks 23 and the outer wall of the rotating sleeve 10. The compression sleeve 25 is slidingly installed on the outer wall of the mounting sleeve 4. The compression spring 26 is respectively connected to the mounting sleeve 4 and the compression sleeve 25 at both ends.

[0039] A strip-shaped groove 27 is opened on the outer wall of the mounting sleeve 4, which is provided with a plurality of groups and is slidingly connected with the compression sleeve 25. The strip-shaped groove 27 limits the sliding direction of the compression sleeve 25 and provides a guide rail.

[0040] More specifically, when the rotating sleeve 10 needs to be positioned, the positioning block 23 enters the corresponding positioning hole 22 under the elastic force of the push spring 24. The compression sleeve 25 is elastically pushed downward by the compression spring 26 to abut against the top end of the plurality of positioning blocks 23, thereby fixing the position of the rotating sleeve 10 and preventing it from rotating randomly. When it needs to be unlocked, the compression sleeve 25 is pushed upward along the plurality of strip-shaped grooves 27 to remove the abutment of the compression sleeve 25 against the plurality of positioning blocks 23. Then the rotating sleeve 10 is rotated to overcome the force exerted by the push spring 24 on the positioning block 23. The rounded corners provided on the outer side of the plurality of positioning holes 22 enable the positioning block 23 to move within the plurality of positioning holes 22.

[0041] In summary, the overall device in use or operation: when installing the alarm 3, the installation sleeve 4 installed on the alarm 3 is inserted with the installation rod 8, when the positioning groove 18 at the top of the installation rod 8 abuts with the positioning plate 17 at the top of the installation sleeve 4, the rotating sleeve 10 drives the inner tooth ring 11 to rotate, the inner tooth ring 11 rotates and engages with the plurality of gears 13, the plurality of screw rods 12 can rotate with the rotation of the rotating sleeve 10 to drive the gear 13 to rotate synchronously, the screw rod 12 controls the sliding of the transmission sleeve 14 through the threaded connection, the transmission sleeve 14 is provided with the push sleeve 15 on the inner side, when the transmission sleeve 14 moves upward, the plurality of connecting grooves 21 provided on the top surface of the push sleeve 15 gradually slide with the connecting blocks 20 on the bottom surface of the sliding block 6, thereby pushing the plurality of sliding blocks 6 to slide along the plurality of sliding rods 5 arranged obliquely, so that the plurality of sliding blocks 6 gradually move inward, the plurality of sliding blocks 6 push the clamping blocks 7 to be clamped in the plurality of clamping grooves 9 arranged on the outer wall of the installation rod 8, and then the rotating sleeve 10 is fixed through the positioning mechanism, that is, the connection and installation of the alarm 3 and the harrow head 2 can be completed, when the alarm 3 needs to be disassembled, the fixing of the rotating sleeve 10 by the positioning mechanism is released, the rotating sleeve 10 is rotated in reverse, the plurality of screw rods 12 are driven to rotate in reverse through the engagement of the inner tooth ring 11 and the plurality of gears 13, so that the screw rod 12 drives the transmission sleeve 14 to slide downward, the push sleeve 15 pulls the plurality of sliding blocks 6 to gradually expand outward along the sliding rod 5, so that the plurality of clamping blocks 7 are disengaged from the clamping grooves 9 and the installation rod 8, and then the alarm 3 can be disassembled;

[0042] When the rotating sleeve 10 needs to be positioned, the positioning block 23 enters the corresponding positioning hole 22 under the elastic force of the push spring 24, the plurality of positioning blocks 23 are abutted by the elastic push of the compression sleeve 25 sliding downward, and the position of the rotating sleeve 10 can be fixed, avoiding random rotation, when unlocking, the compression sleeve 25 is pushed upward along the plurality of strip-shaped grooves 27, the abutment of the plurality of positioning blocks 23 by the compression sleeve 25 is released, and then the rotating sleeve 10 is rotated, overcoming the force applied to the positioning block 23 by the push spring 24, and the positioning block 23 moves in the plurality of positioning holes 22 through the round corners arranged on the outer side of the plurality of positioning holes 22.

[0043] In all the schemes mentioned above, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection or other known connection mode, which will not be described one by one, and the welding is preferred for the fixed connection mentioned above, although the embodiments of the utility model have been shown and described, those skilled in the art can understand that the embodiments can be changed, modified, replaced and modified in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An audible and visual alarm device for the safety of a ship's rake arm, comprising a rake arm (1), characterized in that: A rake head (2) is installed on the rake arm (1). An alarm (3) is installed on both sides of the rake head (2). The alarms (3) are installed on the rake head (2) by means of an installation mechanism. The installation mechanism includes an installation sleeve (4), a sliding rod (5), a slider (6), a locking block (7), an installation rod (8), a slot (9), and a locking mechanism. The installation sleeve (4) is installed on the alarm (3). Multiple sets of sliding rods (5) are installed inside the installation sleeve (4). The slider (6) is slidably installed on multiple sets of sliding rods (5). The locking block (7) is installed inside multiple sets of sliders (6). The installation rod (8) is installed on the side wall of the rake head (2). The slot (9) is provided with... Multiple sets of locking mechanisms are distributed on the outer wall of the mounting rod (8). The locking mechanism includes a rotating sleeve (10), an internal gear ring (11), a screw (12), a gear (13), a transmission sleeve (14), and a push sleeve (15). The rotating sleeve (10) is rotatably mounted on the outer wall of the mounting sleeve (4). The internal gear ring (11) is mounted on the bottom end of the rotating sleeve (10). Multiple sets of screws (12) are rotatably mounted on the mounting sleeve (4). The gear (13) is mounted on the top of multiple sets of screws (12) and meshes with the internal gear ring (11). The transmission sleeve (14) is slidably mounted on the mounting sleeve (4) and threadedly connected to multiple sets of screws (12). The push sleeve (15) is mounted on the inner side of the transmission sleeve (14).

2. The audible and visual alarm device for the safety of a ship's boom according to claim 1, characterized in that: All of the aforementioned slide rods (5) are installed at an angle inside the mounting sleeve (4).

3. The audible and visual alarm device for the safety of a ship's boom according to claim 2, characterized in that: multiple sets of... Each of the slide bars (5) is provided with slide strips (16) on its outer wall, and multiple sets of slide strips (16) are slidably connected to multiple sets of sliders (6).

4. The audible and visual alarm device for the safety of a ship's boom arm according to claim 3, characterized in that: The top of the mounting sleeve (4) is provided with a positioning plate (17), and there are multiple sets of the positioning plate (17). The top of the mounting rod (8) is provided with a positioning groove (18), and there are multiple sets of the positioning groove (18) which are adapted to the multiple sets of the positioning plate (17).

5. The audible and visual alarm device for the safety of a ship's boom according to claim 4, characterized in that: multiple sets of... A tension spring (19) is provided between the bottom surface of the slider (6) and the mounting sleeve (4).

6. The audible and visual alarm device for the safety of a ship's boom according to claim 5, characterized in that: multiple sets The bottom surface of each slider (6) is provided with a connecting block (20), and the top surface of the push sleeve (15) is provided with a connecting groove (21). The connecting groove (21) is provided in multiple sets and is slidably connected to multiple sets of the connecting blocks (20).

7. The audible and visual alarm device for the safety of a ship's boom arm according to claim 6, characterized in that: The rotating sleeve (10) is provided with a positioning mechanism, which includes a positioning hole (22), a positioning block (23), a push spring (24), a clamping sleeve (25), and a compression spring (26). The positioning hole (22) is provided in multiple sets distributed on the outer wall of the mounting sleeve (4). The positioning block (23) is provided in multiple sets and is slidably mounted on the rotating sleeve (10). The push spring (24) is provided in multiple sets and is respectively connected to the top of the positioning block (23) and the outer wall of the rotating sleeve (10). The clamping sleeve (25) is slidably mounted on the outer wall of the mounting sleeve (4). The two ends of the compression spring (26) are respectively connected to the mounting sleeve (4) and the clamping sleeve (25).

8. The audible and visual alarm device for the safety of a ship's boom according to claim 7, characterized in that: The outer wall of the mounting sleeve (4) is provided with a strip groove (27), and the strip groove (27) is provided in multiple sets and is slidably connected to the clamping sleeve (25).

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