Multifunctional life-throwing device for ship

By improving the structural design of the multi-functional life-saving thrower for ships, using alloy steel mounting plates, welded uprights and bearing plates, and employing a detachable T-shaped block and slot-matched ejection mechanism, the problems of cumbersome spring replacement and inconvenient angle adjustment have been solved, thus improving the stability of the equipment and rescue efficiency.

CN224392922UActive Publication Date: 2026-06-23TIANJIN MARITIME VOCATIONAL COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN MARITIME VOCATIONAL COLLEGE
Filing Date
2025-09-08
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing multi-functional life-saving throwers for ships are fixed by spring connections, which makes replacement cumbersome, affects the efficiency of emergency use and maintenance costs, and the launch angle adjustment function is limited, making it difficult to adapt to different rescue scenarios.

Method used

The mounting plate is made of alloy steel, with welded uprights and a bearing plate. The adjustment mechanism uses bearings and hinges. The ejection mechanism is designed with detachable T-blocks that match the slots. The bolts are made of stainless steel to ensure stability and detachability. The limit plate is slotted and coated with ceramic to improve the accuracy of the projectile.

Benefits of technology

The equipment achieves stability and ease of maintenance. The springs can be quickly replaced, and the adjustment mechanism allows for flexible adjustment of the launch direction and angle, improving rescue efficiency and practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to life saving thrower technical field, concretely for ship multifunctional life saving thrower, including mounting panel, adjusting mechanism, bearing plate, ejection mechanism and body, the adjusting mechanism includes bearing, frame and movable block, the frame passes through bearing with mounting panel top center is connected, movable block one end is hinged with frame inner wall, movable block other end is connected with bearing plate, the ejection mechanism includes riser, T groove, T block, connecting plate, spring, push, limit board, slot, long block, limit block and bolt, riser bottom with bearing plate top one side is connected, T groove is set up in the riser, T block one end is inserted into T groove, T block other end is connected with connecting plate, spring one end is connected with connecting plate, the utility model ship multifunctional life saving thrower has solved the problem that the current equipment practicability is poor.
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Description

Technical Field

[0001] This utility model relates to the field of lifesaving throwers, specifically a multi-functional lifesaving thrower for ships. Background Technology

[0002] As is well known, a multi-functional life-saving thrower for ships is a special piece of equipment used to quickly throw life-saving equipment (such as life rings, life ropes, and throwing anchors) in situations of ship distress, people falling overboard, or emergency rescue.

[0003] Most existing multi-functional lifesaving throwers for ships use springs as the launching power source. However, the connection between the spring and the launching mechanism in traditional structures is relatively fixed (such as welding or integrated design). This leads to problems such as elasticity decay and aging of the spring after long-term use. The disassembly process is cumbersome (requiring the disassembly of multiple related components) and difficult to replace quickly. This not only affects the emergency use efficiency of the equipment but also increases maintenance costs. At the same time, the launch angle adjustment function of existing equipment has limitations—some equipment cannot adjust the direction, making it difficult to flexibly adjust the launch trajectory according to the actual situation such as the location of the person in the water and the direction of the water flow, thereby reducing the practicality of the equipment in emergency rescue. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a multi-functional life-saving thrower for ships.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional life-saving thrower for ships, comprising a mounting plate, an adjustment mechanism, a support plate, a launch mechanism, and a body. The adjustment mechanism includes a bearing, a frame, and a movable block. The frame is connected to the top center of the mounting plate via the bearing. One end of the movable block is hinged to the inner wall of the frame, and the other end of the movable block is connected to the support plate. The launch mechanism includes a vertical block, a T-slot, a T-block, a connecting plate, a spring, a push block, a limiting plate, a slot, a long block, a limiting block, and bolts. The bottom of the vertical block is connected to the top of the support plate. The side connection includes a T-slot formed on the upright block, with one end of the T-slot extending into it and the other end connected to the connecting plate. One end of the spring is connected to the connecting plate, and the other end is connected to the push block. One end of the long block is connected to the push block, and the other end passes through the spring, the connecting plate, and the upright block. A limiting block is connected to the other end of the long block via bolts. The limiting plate is located on the top of the bearing plate, and a slot is formed on the limiting plate. The main body is located in the slot, and the slot matches the main body.

[0008] To improve stability, this utility model is improved by providing two T-slots and two T-blocks, with the two T-slots and the T-blocks arranged symmetrically.

[0009] To improve the strength of the bolt, this utility model has an improvement: the bolt is made of stainless steel.

[0010] To improve stability, this invention is improved by matching the T-slot with the T-block.

[0011] To improve the connection effect, the present invention is improved by welding the upright block to the bearing plate and the limiting plate to the bearing plate.

[0012] To improve the strength of the mounting plate, this utility model is improved by using alloy steel as the mounting plate material.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a multi-functional life-saving thrower for ships, which has the following advantages:

[0015] The vessel is equipped with a multi-functional life-saving thrower, which has the following beneficial effects:

[0016] Structurally, the mounting plate made of alloy steel has high strength, which can stably support the entire equipment and withstand the catapult reaction force and ship turbulence; the upright block, limit plate and bearing plate are welded to form a whole to prevent them from falling off or shifting under stress and to ensure the stability of the support.

[0017] In terms of operation and maintenance, the T-block and T-slot of the ejection mechanism are symmetrically matched to ensure that the spring is subjected to balanced force and stable in extension and contraction, thereby improving the accuracy of the ejection. The spring is designed to be detachable through components such as bolts and long blocks. When it ages, it can be replaced simply by removing the bolts and separating the T-block, which solves the problem of cumbersome replacement of traditional springs.

[0018] Functionally, the adjustment mechanism, with the help of bearings and hinges, can flexibly adjust the launch direction and angle to adapt to different rescue scenarios; the slotted limit plate precisely limits the projectile, and the ceramic coating reduces friction, further ensuring the stability of the projectile. Overall, it takes into account both rescue efficiency and ease of maintenance, and its practicality is significantly improved. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This utility model Figure 1 A magnified schematic diagram of the local structure at point A;

[0021] Figure 3 This is a schematic diagram of the axial structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the axial structure of this utility model;

[0023] In the diagram: 1. Mounting plate; 2. Adjustment mechanism; 3. Bearing; 4. Frame; 5. Movable block; 6. Bearing plate; 7. Ejection mechanism; 8. Vertical block; 9. T-slot; 10. T-block; 11. Connecting plate; 12. Spring; 13. Push block; 14. Body; 15. Limiting plate; 16. Slot; 17. Long block; 18. Limiting block; 19. Bolt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 A multi-functional life-saving thrower for ships includes a mounting plate 1, an adjusting mechanism 2, a support plate 6, a launch mechanism 7, and a body 14. The adjusting mechanism 2 includes a bearing 3, a frame 4, and a movable block 5. The frame 4 is connected to the top center of the mounting plate 1 via the bearing 3. One end of the movable block 5 is hinged to the inner wall of the frame 4, and the other end of the movable block 5 is connected to the support plate 6. The launch mechanism 7 includes a vertical block 8, a T-slot 9, a T-block 10, a connecting plate 11, a spring 12, a push block 13, a limiting plate 15, a slot 16, a long block 17, a limiting block 18, and a bolt 19. The bottom of the vertical block 8 is connected to one side of the top of the support plate 6. The T-slot 9 is formed in the mounting plate 1. On the upright block 8, one end of the T-shaped block 10 extends into the T-shaped groove 9, and the other end of the T-shaped block 10 is connected to the connecting plate 11. One end of the spring 12 is connected to the connecting plate 11, and the other end of the spring 12 is connected to the push block 13. One end of the long block 17 is connected to the push block 13, and the other end of the long block 17 passes through the spring 12, the connecting plate 11, and the upright block 8. The limiting block 18 is connected to the other end of the long block 17 by the bolt 19. The limiting plate 15 is set on the top of the bearing plate 6. The slot 16 is opened on the limiting plate 15, and the body 14 is located in the slot 16. The slot 16 matches the body 14.

[0026] Working principle:

[0027] Equipment installation and fixing: The equipment is fixed to the ship's deck or side at a preset position using externally compatible fixing bolts and mounting plate 1 (the installation position must meet the requirements of convenient operation and launch safety, and the specific position is determined according to the ship's structure).

[0028] Launch angle and direction adjustment

[0029] Direction adjustment: The frame 4 is connected to the mounting plate 1 through the bearing 3. The operator can push the support plate 6 and adjust the horizontal direction of the support plate 6 (such as left and right rotation) by means of the rotation characteristics of the bearing 3, so as to achieve flexible adjustment of the launch direction.

[0030] Angle adjustment: The support plate 6 is hinged to the frame 4 via the movable block 5 (the inner wall of the frame 4 is provided with a cylinder, and the movable block 5 is provided with a corresponding circular hole, in which the cylinder is inserted). The operator can lift or press down the support plate 6 to make the movable block 5 move in a circular motion around the cylinder, thereby adjusting the tilt angle of the support plate 6 to adapt to different throwing distances. After adjustment, the operator needs to hold the support plate 6 to prevent the position of the support plate 6 from changing.

[0031] Launch preparation and triggering

[0032] The staff places the main body 14 (such as a lifebuoy) into the slot 16 of the limiting plate 15 (the size of the slot 16 is slightly larger than the thickness of the main body 14, and the inner wall is coated with a ceramic coating to reduce friction), ensuring that the front end of the main body 14 is aligned with the launch direction and the rear end is in contact with the push block 13.

[0033] Pull the long block 17, and the long block 17 will drive the push block 13 to move backward. The spring 12 will be compressed by the push block 13 and the connecting plate 11 (at this time, the body 14 will slide synchronously in the slot 16 with the push block 13, and the slot 16 will limit the body 14 to prevent it from deviating).

[0034] After confirming that the launch direction and angle are correct, release the long block 17, and the compressed spring 12 releases its elastic potential energy, pushing the push block 13 to move forward quickly. The push block 13 hits and pushes the main body 14 to fly out along the slot 16, completing the throwing.

[0035] Spring replacement procedure (maintenance process)

[0036] When spring 12 needs to be replaced due to aging after long-term use, the steps are as follows:

[0037] Use an external screwdriver to unscrew bolt 19 and remove limit block 18 to separate long block 17 from vertical block 8;

[0038] Remove the main body 14 from the slot 16, pull the push block 13 to keep the spring 12 in a stretched state, and pull the long block 17 out from the upright block 8 and the connecting plate 11.

[0039] Lift the connecting plate 11 upwards to dislodge the T-block 10 from the T-slot 9 of the upright block 8, and then remove the old spring 12;

[0040] Install the new spring 12 in reverse order (new parts can be purchased from the manufacturer), ensuring that the T-block 10 and T-slot 9 fit precisely and that the bolts 19 are tightened in place;

[0041] Operating Precautions

[0042] When adjusting the tilt angle of the bearing plate 6, it is necessary to avoid excessive tilting in the direction of the body 14 to prevent the body 14 from sliding out of the slot 16 due to gravity.

[0043] Spring 12 is a high-strength component, and the degree of tension must be controlled according to the target distance during operation (those skilled in the art can judge the correspondence between compression and throwing distance through experience);

[0044] When this device (multi-functional life-saving thrower for ships) is not in use, the adjustment mechanism 2 (including bearing 3, frame 4 and movable block 5) does not require additional limit structure or fixing operation.

[0045] To improve the overall stability of the equipment structure and the force balance during spring ejection, in this embodiment, two T-slots 9 and two T-blocks 10 are each provided, and the two T-slots 9 are symmetrically distributed in the vertical direction of the upright block 8. The two T-blocks 10 are symmetrically fixed at corresponding positions on the connecting plate 11. This symmetrical design ensures that the connecting plate 11 is evenly stressed on both sides when it drives the spring 12 to compress or rebound (avoiding tilting or jamming caused by unilateral stress). At the same time, the interlocking structure of the T-blocks 10 and the T-slots 9 can further limit the lateral displacement of the connecting plate 11, ensuring that the spring 12 always extends and retracts in the preset direction, thereby improving the stability and accuracy of the ejection process.

[0046] To improve the strength and damage resistance of bolt 19 to adapt to the special environment of high salt spray and humidity on ships, and to ensure that it is not easily deformed or broken during the repeated compression and rebound of spring 12, in this embodiment, bolt 19 is made of stainless steel. Stainless steel not only has high mechanical strength and can stably withstand the tensile force transmitted by long block 17 and the reaction force of spring, but also has excellent corrosion resistance, which can reduce the corrosion of bolts by seawater and water vapor during ship navigation, extend its service life, ensure the connection stability between limit block 18 and long block 17, and prevent the ejection mechanism components from falling off due to bolt failure.

[0047] To improve the structural stability of the ejection mechanism during spring compression and rebound, and to prevent the ejection direction from deviating due to shaking of the connecting plate and spring, in this embodiment, the T-slot 9 and the T-block 10 adopt a precise matching design (i.e., the size and shape of the T-block 10 are completely adapted to the inner wall contour of the T-slot 9). This matching structure ensures that the T-block 10 slides only along the axial direction of the T-slot 9 (without lateral gap), thereby limiting unnecessary displacement of the connecting plate 11. When the spring 12 is compressed or released, the connecting plate 11 maintains a stable posture through the engagement of the T-block 10 and the T-slot 9, avoiding tilting due to unilateral force, and ultimately ensuring that the extension and contraction direction of the spring is always consistent with the launch axis, thereby improving the accuracy of the body ejection and the stability of the equipment operation.

[0048] To improve the connection strength and structural stability of key components and the support plate, and to ensure that there is no loosening or displacement under the impact of spring ejection and during long-term use, in this embodiment, the upright block 8 and the support plate 6 are connected by welding, and the limiting plate 15 and the support plate 6 are also connected by welding. The welding process enables the upright block 8, the limiting plate 15 and the support plate 6 to form an integral structure (without gaps or risk of loosening at the connection points): For the upright block 8, as the force support point of the ejection mechanism (which needs to withstand the reaction force when the spring is compressed and rebounded), welding can prevent it from falling off due to excessive force; For the limiting plate 15, it needs to form a stable limit on the body 14 through slotting (especially when the body 14 slides at high speed and ejects at the moment), welding can ensure that its position is fixed and prevent displacement due to vibration or impact, ultimately ensuring the structural stability and reliability of the entire ejection process.

[0049] To improve the overall structural strength and load-bearing capacity of the mounting plate 1, ensuring its stable support of the weight of all components such as the adjustment mechanism, the ejection mechanism, and the main body, and to withstand the reaction force generated during spring ejection and the impact of turbulence during ship navigation, in this embodiment, the mounting plate 1 is made of alloy steel. Compared with ordinary steel, alloy steel has higher tensile strength and deformation resistance: on the one hand, the mounting plate 1 needs to be fixed to the ship with external bolts, serving as the basic load-bearing component of the entire equipment. The alloy steel material can prevent bending and breakage under long-term load or sudden impact. On the other hand, the ship navigation environment contains dynamic loads such as vibration and swaying. The toughness of alloy steel can reduce fatigue damage to the mounting plate 1 caused by repeated stress, thereby ensuring the overall stability of the equipment installation and providing a reliable structural foundation for subsequent angle adjustment, ejection operation, etc.

[0050] In order to improve the strength of the mounting plate 1, in this embodiment, the mounting plate 1 is made of alloy steel.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional life-saving thrower for ships, comprising a mounting plate (1), an adjustment mechanism (2), a support plate (6), a launch mechanism (7), and a body (14), characterized in that: The adjusting mechanism (2) includes a bearing (3), a frame (4), and a movable block (5). The frame (4) is connected to the top center of the mounting plate (1) via the bearing (3). One end of the movable block (5) is hinged to the inner wall of the frame (4), and the other end of the movable block (5) is connected to the bearing plate (6). The ejection mechanism (7) includes a vertical block (8), a T-slot (9), a T-block (10), a connecting plate (11), a spring (12), a push block (13), a limiting plate (15), a slot (16), a long block (17), a limiting block (18), and a bolt (19). The bottom of the vertical block (8) is connected to one side of the top of the bearing plate (6). The T-slot (9) is formed on the vertical block (8), and one end of the T-block (10) extends into the mounting plate (6). In the T-slot (9), the other end of the T-block (10) is connected to the connecting plate (11), one end of the spring (12) is connected to the connecting plate (11), the other end of the spring (12) is connected to the push block (13), one end of the long block (17) is connected to the push block (13), the other end of the long block (17) passes through the spring (12), the connecting plate (11) and the upright block (8), the limiting block (18) is connected to the other end of the long block (17) by the bolt (19), the limiting plate (15) is set on the top of the bearing plate (6), the slot (16) is opened on the limiting plate (15), the body (14) is located in the slot (16), and the slot (16) matches the body (14).

2. The multi-functional life-saving thrower for ships according to claim 1, characterized in that: Two T-slots (9) and two T-blocks (10) are provided, and the two T-slots (9) and the two T-blocks (10) are symmetrically arranged.

3. The multi-functional life-saving thrower for ships according to claim 2, characterized in that: The bolt (19) is made of stainless steel.

4. The multi-functional life-saving thrower for ships according to claim 3, characterized in that: The T-slot (9) matches the T-block (10).

5. The multi-functional life-saving thrower for ships according to claim 4, characterized in that: The upright block (8) is welded to the bearing plate (6), and the limiting plate (15) is welded to the bearing plate (6).

6. The multi-functional life-saving thrower for ships according to claim 5, characterized in that: The mounting plate (1) is made of alloy steel.